shell/ev-view.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
   2 /* this file is part of evince, a gnome document viewer
   3  *
   4  *  Copyright (C) 2004 Red Hat, Inc
   5  *
   6  * Evince is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * Evince is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 #include <math.h>
  22 #include <string.h>
  23 #include <gtk/gtkalignment.h>
  24 #include <glib/gi18n.h>
  25 #include <gtk/gtkbindings.h>
  26 #include <gtk/gtkselection.h>
  27 #include <gtk/gtkclipboard.h>
  28 #include <gdk/gdkkeysyms.h>
  29 #include <libgnomevfs/gnome-vfs-utils.h>
  30
  31 #include "ev-marshal.h"
  32 #include "ev-view.h"
  33 #include "ev-view-private.h"
  34 #include "ev-utils.h"
  35 #include "ev-selection.h"
  36 #include "ev-document-find.h"
  37 #include "ev-document-misc.h"
  38 #include "ev-debug.h"
  39 #include "ev-job-queue.h"
  40 #include "ev-page-cache.h"
  41 #include "ev-pixbuf-cache.h"
  42 #include "ev-tooltip.h"
  43
  44 #define EV_VIEW_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass))
  45 #define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW))
  46 #define EV_VIEW_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass))
  47
  48
  49 enum {
  50         PROP_0,
  51         PROP_STATUS,
  52         PROP_FIND_STATUS,
  53         PROP_CONTINUOUS,
  54         PROP_DUAL_PAGE,
  55         PROP_FULLSCREEN,
  56         PROP_PRESENTATION,
  57         PROP_SIZING_MODE,
  58         PROP_ZOOM,
  59         PROP_ROTATION,
  60         PROP_HAS_SELECTION,
  61 };
  62
  63 enum {
  64         SIGNAL_BINDING_ACTIVATED,
  65         SIGNAL_ZOOM_INVALID,
  66         SIGNAL_EXTERNAL_LINK,
  67         SIGNAL_POPUP_MENU,
  68         N_SIGNALS,
  69 };
  70
  71 enum {
  72         TARGET_STRING,
  73         TARGET_TEXT,
  74         TARGET_COMPOUND_TEXT,
  75         TARGET_UTF8_STRING,
  76         TARGET_TEXT_BUFFER_CONTENTS
  77 };
  78
  79 static const GtkTargetEntry targets[] = {
  80         { "STRING", 0, TARGET_STRING },
  81         { "TEXT",   0, TARGET_TEXT },
  82         { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
  83         { "UTF8_STRING", 0, TARGET_UTF8_STRING },
  84 };
  85
  86 static guint signals[N_SIGNALS];
  87
  88 typedef enum {
  89         EV_VIEW_FIND_NEXT,
  90         EV_VIEW_FIND_PREV
  91 } EvViewFindDirection;
  92
  93 #define ZOOM_IN_FACTOR  1.2
  94 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
  95
  96 #define MIN_SCALE 0.05409
  97 #define MAX_SCALE 4.0
  98
  99 #define SCROLL_TIME 150
 100
 101 /*** Scrolling ***/
 102 static void       scroll_to_current_page                     (EvView *view,
 103                                                               GtkOrientation orientation);
 104 static void       ev_view_set_scroll_adjustments             (EvView             *view,
 105                                                               GtkAdjustment      *hadjustment,
 106                                                               GtkAdjustment      *vadjustment);
 107 static void       view_update_range_and_current_page         (EvView             *view);
 108 static void       set_scroll_adjustment                      (EvView             *view,
 109                                                               GtkOrientation      orientation,
 110                                                               GtkAdjustment      *adjustment);
 111 static void       ev_view_set_scroll_adjustments             (EvView             *view,
 112                                                               GtkAdjustment      *hadjustment,
 113                                                               GtkAdjustment      *vadjustment);
 114 static void       add_scroll_binding_keypad                  (GtkBindingSet      *binding_set,
 115                                                               guint               keyval,
 116                                                               GdkModifierType modifiers,
 117                                                               EvScrollType       scroll,
 118                                                               gboolean            horizontal);
 119 static void       ensure_rectangle_is_visible                (EvView             *view,
 120                                                               GdkRectangle       *rect);
 121
 122 /*** Geometry computations ***/
 123 static void       compute_border                             (EvView             *view,
 124                                                               int                 width,
 125                                                               int                 height,
 126                                                               GtkBorder          *border);
 127 static void       get_page_y_offset                          (EvView *view,
 128                                                               int page,
 129                                                               double zoom,
 130                                                               int *y_offset);
 131 static gboolean   get_page_extents                           (EvView             *view,
 132                                                               gint                page,
 133                                                               GdkRectangle       *page_area,
 134                                                               GtkBorder          *border);
 135 static void       view_rect_to_doc_rect                      (EvView             *view,
 136                                                               GdkRectangle       *view_rect,
 137                                                               GdkRectangle       *page_area,
 138                                                               EvRectangle        *doc_rect);
 139 static void       doc_rect_to_view_rect                      (EvView             *view,
 140                                                               int                 page,
 141                                                               EvRectangle        *doc_rect,
 142                                                               GdkRectangle       *view_rect);
 143 static void       find_page_at_location                      (EvView             *view,
 144                                                               gdouble             x,
 145                                                               gdouble             y,
 146                                                               gint               *page,
 147                                                               gint               *x_offset,
 148                                                               gint               *y_offset);
 149 static gboolean  doc_point_to_view_point                     (EvView       *view,
 150                                                               int           page,
 151                                                               EvPoint      *doc_point,
 152                                                               GdkPoint     *view_point);
 153 /*** Hyperrefs ***/
 154 static EvLink *   ev_view_get_link_at_location               (EvView  *view,
 155                                                               gdouble  x,
 156                                                               gdouble  y);
 157 static char*      tip_from_link                              (EvView             *view,
 158                                                               EvLink             *link);
 159 static void       handle_link_over_xy                        (EvView *view,
 160                                                               gint x,
 161                                                               gint y);
 162 /*** GtkWidget implementation ***/
 163 static void       ev_view_size_request_continuous_dual_page  (EvView             *view,
 164                                                               GtkRequisition     *requisition);
 165 static void       ev_view_size_request_continuous            (EvView             *view,
 166                                                               GtkRequisition     *requisition);
 167 static void       ev_view_size_request_dual_page             (EvView             *view,
 168                                                               GtkRequisition     *requisition);
 169 static void       ev_view_size_request_single_page           (EvView             *view,
 170                                                               GtkRequisition     *requisition);
 171 static void       ev_view_size_request                       (GtkWidget          *widget,
 172                                                               GtkRequisition     *requisition);
 173 static void       ev_view_size_allocate                      (GtkWidget          *widget,
 174                                                               GtkAllocation      *allocation);
 175 static void       ev_view_realize                            (GtkWidget          *widget);
 176 static gboolean   ev_view_scroll_event                       (GtkWidget          *widget,
 177                                                               GdkEventScroll     *event);
 178 static gboolean   ev_view_expose_event                       (GtkWidget          *widget,
 179                                                               GdkEventExpose     *event);
 180 static gboolean   ev_view_popup_menu                         (GtkWidget          *widget);
 181 static gboolean   ev_view_button_press_event                 (GtkWidget          *widget,
 182                                                               GdkEventButton     *event);
 183 static gboolean   ev_view_motion_notify_event                (GtkWidget          *widget,
 184                                                               GdkEventMotion     *event);
 185 static gboolean   ev_view_button_release_event               (GtkWidget          *widget,
 186                                                               GdkEventButton     *event);
 187 static gboolean   ev_view_enter_notify_event                 (GtkWidget          *widget,
 188                                                               GdkEventCrossing   *event);
 189 static gboolean   ev_view_leave_notify_event                 (GtkWidget          *widget,
 190                                                               GdkEventCrossing   *event);
 191 static void       ev_view_style_set                          (GtkWidget          *widget,
 192                                                               GtkStyle           *old_style);
 193
 194 static AtkObject *ev_view_get_accessible                     (GtkWidget *widget);
 195
 196 /*** Drawing ***/
 197 static guint32    ev_gdk_color_to_rgb                        (const GdkColor     *color);
 198 static void       draw_rubberband                            (GtkWidget          *widget,
 199                                                               GdkWindow          *window,
 200                                                               const GdkRectangle *rect,
 201                                                               guchar              alpha);
 202 static void       highlight_find_results                     (EvView             *view,
 203                                                               int                 page);
 204 static void       draw_one_page                              (EvView             *view,
 205                                                               gint                page,
 206                                                               GdkRectangle       *page_area,
 207                                                               GtkBorder          *border,
 208                                                               GdkRectangle       *expose_area);
 209 static void       draw_loading_text                          (EvView             *view,
 210                                                               GdkRectangle       *page_area,
 211                                                               GdkRectangle       *expose_area);
 212
 213 /*** Callbacks ***/
 214 static void       find_changed_cb                            (EvDocument         *document,
 215                                                               int                 page,
 216                                                               EvView             *view);
 217 static void       job_finished_cb                            (EvPixbufCache      *pixbuf_cache,
 218                                                               EvView             *view);
 219 static void       page_changed_cb                            (EvPageCache        *page_cache,
 220                                                               int                 new_page,
 221                                                               EvView             *view);
 222 static void       on_adjustment_value_changed                (GtkAdjustment      *adjustment,
 223                                                               EvView             *view);
 224
 225 /*** GObject ***/
 226 static void       ev_view_finalize                           (GObject            *object);
 227 static void       ev_view_destroy                            (GtkObject          *object);
 228 static void       ev_view_set_property                       (GObject            *object,
 229                                                               guint               prop_id,
 230                                                               const GValue       *value,
 231                                                               GParamSpec         *pspec);
 232 static void       ev_view_get_property                       (GObject            *object,
 233                                                               guint               prop_id,
 234                                                               GValue             *value,
 235                                                               GParamSpec         *pspec);
 236 static void       ev_view_class_init                         (EvViewClass        *class);
 237 static void       ev_view_init                               (EvView             *view);
 238
 239 /*** Zoom and sizing ***/
 240 static double   zoom_for_size_fit_width                      (int doc_width,
 241                                                               int doc_height,
 242                                                               int target_width,
 243                                                               int target_height,
 244                                                               int vsb_width);
 245 static double   zoom_for_size_fit_height                     (int doc_width,
 246                                                               int doc_height,
 247                                                               int target_width,
 248                                                               int target_height,
 249                                                               int vsb_height);
 250 static double   zoom_for_size_best_fit                       (int doc_width,
 251                                                               int doc_height,
 252                                                               int target_width,
 253                                                               int target_height,
 254                                                               int vsb_width,
 255                                                               int hsb_width);
 256 static void     ev_view_zoom_for_size_presentation           (EvView *view,
 257                                                               int     width,
 258                                                               int     height);
 259 static void     ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
 260                                                                 int     width,
 261                                                                 int     height,
 262                                                                 int     vsb_width,
 263                                                                 int     hsb_height);
 264 static void     ev_view_zoom_for_size_continuous               (EvView *view,
 265                                                                 int     width,
 266                                                                 int     height,
 267                                                                 int     vsb_width,
 268                                                                 int     hsb_height);
 269 static void     ev_view_zoom_for_size_dual_page                (EvView *view,
 270                                                                 int     width,
 271                                                                 int     height,
 272                                                                 int     vsb_width,
 273                                                                 int     hsb_height);
 274 static void     ev_view_zoom_for_size_single_page              (EvView *view,
 275                                                                 int     width,
 276                                                                 int     height,
 277                                                                 int     vsb_width,
 278                                                                 int     hsb_height);
 279 /*** Cursors ***/
 280 static GdkCursor* ev_view_create_invisible_cursor            (void);
 281 static void       ev_view_set_cursor                         (EvView             *view,
 282                                                               EvViewCursor        new_cursor);
 283
 284 /*** Status messages ***/
 285 static void       ev_view_set_status                         (EvView             *view,
 286                                                               const char         *message);
 287 static void       update_find_status_message                 (EvView             *view,
 288                                                               gboolean            this_page);
 289 static void       ev_view_set_find_status                    (EvView             *view,
 290                                                               const char         *message);
 291 /*** Find ***/
 292 static void       jump_to_find_result                        (EvView             *view);
 293 static void       jump_to_find_page                          (EvView             *view,
 294                                                               EvViewFindDirection direction,
 295                                                               gint                shift);
 296
 297 /*** Selection ***/
 298 static void       compute_selections                         (EvView             *view,
 299                                                               GdkPoint           *start,
 300                                                               GdkPoint           *stop);
 301 static void       clear_selection                            (EvView             *view);
 302 static void       selection_free                             (EvViewSelection    *selection);
 303 static char*      get_selected_text                          (EvView             *ev_view);
 304 static void       ev_view_primary_get_cb                     (GtkClipboard       *clipboard,
 305                                                               GtkSelectionData   *selection_data,
 306                                                               guint               info,
 307                                                               gpointer            data);
 308 static void       ev_view_primary_clear_cb                   (GtkClipboard       *clipboard,
 309                                                               gpointer            data);
 310 static void       ev_view_update_primary_selection           (EvView             *ev_view);
 311
 312
 313 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
 314
 315 static void
 316 scroll_to_current_page (EvView *view, GtkOrientation orientation)
 317 {
 318         GdkPoint view_point;
 319
 320         if (view->document == NULL) {
 321                 return;
 322         }
 323
 324         doc_point_to_view_point (view, view->current_page, &view->pending_point, &view_point);
 325
 326         if (orientation == GTK_ORIENTATION_VERTICAL) {
 327                 view->pending_point.y = 0;
 328         } else {
 329                 view->pending_point.x = 0;
 330         }
 331
 332         if (orientation == GTK_ORIENTATION_VERTICAL) {
 333                 if (view->continuous) {
 334                         gtk_adjustment_clamp_page (view->vadjustment,
 335                                                    view_point.y - view->spacing / 2,
 336                                                    view_point.y + view->vadjustment->page_size);
 337                 } else {
 338                         gtk_adjustment_set_value (view->vadjustment,
 339                                                   CLAMP (view_point.y,
 340                                                   view->vadjustment->lower,
 341                                                   view->vadjustment->upper -
 342                                                   view->vadjustment->page_size));
 343                 }
 344         } else {
 345                 if (view->dual_page) {
 346                         gtk_adjustment_clamp_page (view->hadjustment,
 347                                                    view_point.x,
 348                                                    view_point.x + view->hadjustment->page_size);
 349                 } else {
 350                         gtk_adjustment_set_value (view->hadjustment,
 351                                                   CLAMP (view_point.x,
 352                                                   view->hadjustment->lower,
 353                                                   view->hadjustment->upper -
 354                                                   view->hadjustment->page_size));
 355                 }
 356         }
 357 }
 358
 359 static void
 360 view_set_adjustment_values (EvView         *view,
 361                             GtkOrientation  orientation)
 362 {
 363         GtkWidget *widget = GTK_WIDGET (view);
 364         GtkAdjustment *adjustment;
 365         int requisition;
 366         int allocation;
 367
 368         double factor;
 369         gint new_value;
 370
 371         if (orientation == GTK_ORIENTATION_HORIZONTAL)  {
 372                 requisition = widget->requisition.width;
 373                 allocation = widget->allocation.width;
 374                 adjustment = view->hadjustment;
 375         } else {
 376                 requisition = widget->requisition.height;
 377                 allocation = widget->allocation.height;
 378                 adjustment = view->vadjustment;
 379         }
 380
 381         if (!adjustment)
 382                 return;
 383
 384         factor = 1.0;
 385         switch (view->pending_scroll) {
 386                 case SCROLL_TO_KEEP_POSITION:
 387                         factor = (adjustment->value) / adjustment->upper;
 388                         break;
 389                 case SCROLL_TO_PAGE_POSITION:
 390                         break;
 391                 case SCROLL_TO_CENTER:
 392                         factor = (adjustment->value + adjustment->page_size * 0.5) / adjustment->upper;
 393                         break;
 394         }
 395
 396         adjustment->page_size = allocation;
 397         adjustment->step_increment = allocation * 0.1;
 398         adjustment->page_increment = allocation * 0.9;
 399         adjustment->lower = 0;
 400         adjustment->upper = MAX (allocation, requisition);
 401
 402         /*
 403          * We add 0.5 to the values before to average out our rounding errors.
 404          */
 405         switch (view->pending_scroll) {
 406                 case SCROLL_TO_KEEP_POSITION:
 407                         new_value = CLAMP (adjustment->upper * factor + 0.5, 0, adjustment->upper - adjustment->page_size);
 408                         gtk_adjustment_set_value (adjustment, (int)new_value);
 409                         break;
 410                 case SCROLL_TO_PAGE_POSITION:
 411                         scroll_to_current_page (view, orientation);
 412                         break;
 413                 case SCROLL_TO_CENTER:
 414                         new_value = CLAMP (adjustment->upper * factor - adjustment->page_size * 0.5 + 0.5,
 415                                            0, adjustment->upper - adjustment->page_size);
 416                         gtk_adjustment_set_value (adjustment, (int)new_value);
 417                         break;
 418         }
 419
 420         gtk_adjustment_changed (adjustment);
 421 }
 422
 423 static void
 424 view_update_range_and_current_page (EvView *view)
 425 {
 426         gint current_page;
 427
 428         if (view->pending_scroll != SCROLL_TO_KEEP_POSITION)
 429                 return;
 430
 431         /* Presentation trumps all other modes */
 432         if (view->presentation) {
 433                 view->start_page = view->current_page;
 434                 view->end_page = view->current_page;
 435         } else if (view->continuous) {
 436                 GdkRectangle current_area, unused, page_area;
 437                 GtkBorder border;
 438                 gboolean found = FALSE;
 439                 int i;
 440
 441                 if (!(view->vadjustment && view->hadjustment))
 442                         return;
 443
 444                 current_area.x = view->hadjustment->value;
 445                 current_area.width = view->hadjustment->upper;
 446                 current_area.y = view->vadjustment->value;
 447                 current_area.height = view->vadjustment->page_size;
 448
 449                 for (i = 0; i < ev_page_cache_get_n_pages (view->page_cache); i++) {
 450
 451                         get_page_extents (view, i, &page_area, &border);
 452
 453                         if (gdk_rectangle_intersect (&current_area, &page_area, &unused)) {
 454                                 if (! found) {
 455                                         view->start_page = i;
 456                                         found = TRUE;
 457
 458                                 }
 459                                 view->end_page = i;
 460                         } else if (found) {
 461                                 break;
 462                         }
 463                 }
 464
 465         } else {
 466                 if (view->dual_page) {
 467                         if (view->current_page % 2 == ev_page_cache_get_dual_even_left (view->page_cache)) {
 468                                 view->start_page = view->current_page;
 469                                 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache))
 470                                         view->end_page = view->start_page + 1;
 471                                 else
 472                                         view->end_page = view->start_page;
 473                         } else {
 474                                 if (view->current_page < 1)
 475                                         view->start_page = view->current_page;
 476                                 else
 477                                         view->start_page = view->current_page - 1;
 478                                 view->end_page = view->current_page;
 479                         }
 480                 } else {
 481                         view->start_page = view->current_page;
 482                         view->end_page = view->current_page;
 483                 }
 484
 485         }
 486
 487         current_page = ev_page_cache_get_current_page (view->page_cache);
 488
 489         if (current_page < view->start_page || current_page > view->end_page) {
 490                 view->current_page = view->start_page;
 491                 ev_page_cache_set_current_page (view->page_cache, view->start_page);
 492         }
 493
 494         ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
 495                                         view->start_page,
 496                                         view->end_page,
 497                                         view->rotation,
 498                                         view->scale,
 499                                         view->selection_info.selections);
 500 }
 501
 502 static void
 503 set_scroll_adjustment (EvView *view,
 504                        GtkOrientation  orientation,
 505                        GtkAdjustment  *adjustment)
 506 {
 507         GtkAdjustment **to_set;
 508
 509         if (orientation == GTK_ORIENTATION_HORIZONTAL)
 510                 to_set = &view->hadjustment;
 511         else
 512                 to_set = &view->vadjustment;
 513
 514         if (*to_set != adjustment) {
 515                 if (*to_set) {
 516                         g_signal_handlers_disconnect_by_func (*to_set,
 517                                                               (gpointer) on_adjustment_value_changed,
 518                                                               view);
 519                         g_object_unref (*to_set);
 520                 }
 521
 522                 *to_set = adjustment;
 523                 view_set_adjustment_values (view, orientation);
 524
 525                 if (*to_set) {
 526                         g_object_ref (*to_set);
 527                         g_signal_connect (*to_set, "value_changed",
 528                                           G_CALLBACK (on_adjustment_value_changed), view);
 529                 }
 530         }
 531 }
 532
 533 static void
 534 ev_view_set_scroll_adjustments (EvView *view,
 535                                 GtkAdjustment  *hadjustment,
 536                                 GtkAdjustment  *vadjustment)
 537 {
 538         set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
 539         set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
 540
 541         on_adjustment_value_changed (NULL, view);
 542 }
 543
 544 static void
 545 add_scroll_binding_keypad (GtkBindingSet  *binding_set,
 546                            guint           keyval,
 547                            GdkModifierType modifiers,
 548                            EvScrollType    scroll,
 549                            gboolean        horizontal)
 550 {
 551   guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
 552
 553   gtk_binding_entry_add_signal (binding_set, keyval, modifiers,
 554                                 "binding_activated", 2,
 555                                 EV_TYPE_SCROLL_TYPE, scroll,
 556                                 G_TYPE_BOOLEAN, horizontal);
 557   gtk_binding_entry_add_signal (binding_set, keypad_keyval, modifiers,
 558                                 "binding_activated", 2,
 559                                 EV_TYPE_SCROLL_TYPE, scroll,
 560                                 G_TYPE_BOOLEAN, horizontal);
 561 }
 562
 563 void
 564 ev_view_scroll (EvView        *view,
 565                 EvScrollType   scroll,
 566                 gboolean horizontal)
 567 {
 568         GtkAdjustment *adjustment;
 569         double value, increment;
 570         gboolean first_page = FALSE;
 571         gboolean last_page = FALSE;
 572
 573         view->jump_to_find_result = FALSE;
 574
 575         if (view->presentation) {
 576                 switch (scroll) {
 577                         case EV_SCROLL_PAGE_BACKWARD:
 578                         case EV_SCROLL_STEP_BACKWARD:
 579                                 ev_view_previous_page (view);
 580                                 break;
 581                         case EV_SCROLL_PAGE_FORWARD:
 582                         case EV_SCROLL_STEP_FORWARD:
 583                                 ev_view_next_page (view);
 584                                 break;
 585                         default:
 586                                 break;
 587                 }
 588                 return;
 589         }
 590
 591         /* Assign values for increment and vertical adjustment */
 592         adjustment = horizontal ? view->hadjustment : view->vadjustment;
 593         increment = adjustment->page_size * 0.75;
 594         value = adjustment->value;
 595
 596         /* Assign boolean for first and last page */
 597         if (view->current_page == 0)
 598                 first_page = TRUE;
 599         if (view->current_page == ev_page_cache_get_n_pages (view->page_cache) - 1)
 600                 last_page = TRUE;
 601
 602         switch (scroll) {
 603                 case EV_SCROLL_PAGE_BACKWARD:
 604                         /* Do not jump backwards if at the first page */
 605                         if (value == (adjustment->lower) && first_page) {
 606                                 /* Do nothing */
 607                                 /* At the top of a page, assign the upper bound limit of previous page */
 608                         } else if (value == (adjustment->lower)) {
 609                                 value = adjustment->upper - adjustment->page_size;
 610                                 ev_view_previous_page (view);
 611                                 /* Jump to the top */
 612                         } else {
 613                                 value = MAX (value - increment, adjustment->lower);
 614                         }
 615                         break;
 616                 case EV_SCROLL_PAGE_FORWARD:
 617                         /* Do not jump forward if at the last page */
 618                         if (value == (adjustment->upper - adjustment->page_size) && last_page) {
 619                                 /* Do nothing */
 620                         /* At the bottom of a page, assign the lower bound limit of next page */
 621                         } else if (value == (adjustment->upper - adjustment->page_size)) {
 622                                 value = 0;
 623                                 ev_view_next_page (view);
 624                         /* Jump to the bottom */
 625                         } else {
 626                                 value = MIN (value + increment, adjustment->upper - adjustment->page_size);
 627                         }
 628                         break;
 629                 case EV_SCROLL_STEP_BACKWARD:
 630                         value -= adjustment->step_increment;
 631                         break;
 632                 case EV_SCROLL_STEP_FORWARD:
 633                         value += adjustment->step_increment;
 634                         break;
 635                 case EV_SCROLL_STEP_DOWN:
 636                         value -= adjustment->step_increment / 10;
 637                         break;
 638                 case EV_SCROLL_STEP_UP:
 639                         value += adjustment->step_increment / 10;
 640                         break;
 641                 default:
 642                         break;
 643         }
 644
 645         value = CLAMP (value, adjustment->lower,
 646                        adjustment->upper - adjustment->page_size);
 647
 648         gtk_adjustment_set_value (adjustment, value);
 649
 650 }
 651
 652 #define MARGIN 5
 653
 654 static void
 655 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
 656 {
 657         GtkWidget *widget = GTK_WIDGET (view);
 658         GtkAdjustment *adjustment;
 659         int value;
 660
 661         view->pending_scroll = SCROLL_TO_KEEP_POSITION;
 662
 663         adjustment = view->vadjustment;
 664
 665         if (rect->y < adjustment->value) {
 666                 value = MAX (adjustment->lower, rect->y - MARGIN);
 667                 gtk_adjustment_set_value (view->vadjustment, value);
 668         } else if (rect->y + rect->height >
 669                    adjustment->value + widget->allocation.height) {
 670                 value = MIN (adjustment->upper, rect->y + rect->height -
 671                              widget->allocation.height + MARGIN);
 672                 gtk_adjustment_set_value (view->vadjustment, value);
 673         }
 674
 675         adjustment = view->hadjustment;
 676
 677         if (rect->x < adjustment->value) {
 678                 value = MAX (adjustment->lower, rect->x - MARGIN);
 679                 gtk_adjustment_set_value (view->hadjustment, value);
 680         } else if (rect->x + rect->height >
 681                    adjustment->value + widget->allocation.width) {
 682                 value = MIN (adjustment->upper, rect->x + rect->width -
 683                              widget->allocation.width + MARGIN);
 684                 gtk_adjustment_set_value (view->hadjustment, value);
 685         }
 686 }
 687
 688 /*** Geometry computations ***/
 689
 690 static void
 691 compute_border (EvView *view, int width, int height, GtkBorder *border)
 692 {
 693         if (view->presentation) {
 694                 border->left = 0;
 695                 border->right = 0;
 696                 border->top = 0;
 697                 border->bottom = 0;
 698         } else {
 699                 ev_document_misc_get_page_border_size (width, height, border);
 700         }
 701 }
 702
 703 static void
 704 get_page_y_offset (EvView *view, int page, double zoom, int *y_offset)
 705 {
 706         int max_width, offset;
 707         GtkBorder border;
 708
 709         g_return_if_fail (y_offset != NULL);
 710
 711         ev_page_cache_get_max_width (view->page_cache, view->rotation, zoom, &max_width);
 712
 713         compute_border (view, max_width, max_width, &border);
 714
 715         if (view->dual_page) {
 716                 ev_page_cache_get_height_to_page (view->page_cache, page,
 717                                                   view->rotation, zoom, NULL, &offset);
 718                 offset += ((page + ev_page_cache_get_dual_even_left (view->page_cache)) / 2 + 1) * view->spacing + ((page + ev_page_cache_get_dual_even_left (view->page_cache)) / 2 ) * (border.top + border.bottom);
 719         } else {
 720                 ev_page_cache_get_height_to_page (view->page_cache, page,
 721                                                   view->rotation, zoom, &offset, NULL);
 722                 offset += (page + 1) * view->spacing + page * (border.top + border.bottom);
 723         }
 724
 725         *y_offset = offset;
 726         return;
 727 }
 728
 729 static gboolean
 730 get_page_extents (EvView       *view,
 731                   gint          page,
 732                   GdkRectangle *page_area,
 733                   GtkBorder    *border)
 734 {
 735         GtkWidget *widget;
 736         int width, height;
 737
 738         widget = GTK_WIDGET (view);
 739
 740         /* Get the size of the page */
 741         ev_page_cache_get_size (view->page_cache, page,
 742                                 view->rotation,
 743                                 view->scale,
 744                                 &width, &height);
 745         compute_border (view, width, height, border);
 746         page_area->width = width + border->left + border->right;
 747         page_area->height = height + border->top + border->bottom;
 748
 749         if (view->presentation) {
 750                 page_area->x = (MAX (0, widget->allocation.width - width))/2;
 751                 page_area->y = (MAX (0, widget->allocation.height - height))/2;
 752         } else if (view->continuous) {
 753                 gint max_width;
 754                 gint x, y;
 755
 756                 ev_page_cache_get_max_width (view->page_cache, view->rotation,
 757                                              view->scale, &max_width);
 758                 max_width = max_width + border->left + border->right;
 759                 /* Get the location of the bounding box */
 760                 if (view->dual_page) {
 761                         x = view->spacing + ((page % 2 == ev_page_cache_get_dual_even_left (view->page_cache)) ? 0 : 1) * (max_width + view->spacing);
 762                         x = x + MAX (0, widget->allocation.width - (max_width * 2 + view->spacing * 3)) / 2;
 763                         if (page % 2 == ev_page_cache_get_dual_even_left (view->page_cache))
 764                                 x = x + (max_width - width - border->left - border->right);
 765                 } else {
 766                         x = view->spacing;
 767                         x = x + MAX (0, widget->allocation.width - (width + view->spacing * 2)) / 2;
 768                 }
 769
 770                 get_page_y_offset (view, page, view->scale, &y);
 771
 772                 page_area->x = x;
 773                 page_area->y = y;
 774         } else {
 775                 gint x, y;
 776                 if (view->dual_page) {
 777                         gint width_2, height_2;
 778                         gint max_width = width;
 779                         gint max_height = height;
 780                         GtkBorder overall_border;
 781                         gint other_page;
 782
 783                         other_page = (page % 2 == ev_page_cache_get_dual_even_left (view->page_cache)) ? page + 1: page - 1;
 784
 785                         /* First, we get the bounding box of the two pages */
 786                         if (other_page < ev_page_cache_get_n_pages (view->page_cache)
 787                             && (0 <= other_page)) {
 788                                 ev_page_cache_get_size (view->page_cache,
 789                                                         other_page,
 790                                                         view->rotation,
 791                                                         view->scale,
 792                                                         &width_2, &height_2);
 793                                 if (width_2 > width)
 794                                         max_width = width_2;
 795                                 if (height_2 > height)
 796                                         max_height = height_2;
 797                         }
 798                         compute_border (view, max_width, max_height, &overall_border);
 799
 800                         /* Find the offsets */
 801                         x = view->spacing;
 802                         y = view->spacing;
 803
 804                         /* Adjust for being the left or right page */
 805                         if (page % 2 == ev_page_cache_get_dual_even_left (view->page_cache))
 806                                 x = x + max_width - width;
 807                         else
 808                                 x = x + (max_width + overall_border.left + overall_border.right) + view->spacing;
 809
 810                         y = y + (max_height - height)/2;
 811
 812                         /* Adjust for extra allocation */
 813                         x = x + MAX (0, widget->allocation.width -
 814                                      ((max_width + overall_border.left + overall_border.right) * 2 + view->spacing * 3))/2;
 815                         y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
 816                 } else {
 817                         x = view->spacing;
 818                         y = view->spacing;
 819
 820                         /* Adjust for extra allocation */
 821                         x = x + MAX (0, widget->allocation.width - (width + border->left + border->right + view->spacing * 2))/2;
 822                         y = y + MAX (0, widget->allocation.height - (height + border->top + border->bottom +  view->spacing * 2))/2;
 823                 }
 824
 825                 page_area->x = x;
 826                 page_area->y = y;
 827         }
 828
 829         return TRUE;
 830 }
 831
 832 static void
 833 view_point_to_doc_point (EvView *view,
 834                          GdkPoint *view_point,
 835                          GdkRectangle *page_area,
 836                          double  *doc_point_x,
 837                          double  *doc_point_y)
 838 {
 839         *doc_point_x = (double) (view_point->x - page_area->x) / view->scale;
 840         *doc_point_y = (double) (view_point->y - page_area->y) / view->scale;
 841 }
 842
 843 static void
 844 view_rect_to_doc_rect (EvView *view,
 845                        GdkRectangle *view_rect,
 846                        GdkRectangle *page_area,
 847                        EvRectangle  *doc_rect)
 848 {
 849         doc_rect->x1 = (double) (view_rect->x - page_area->x) / view->scale;
 850         doc_rect->y1 = (double) (view_rect->y - page_area->y) / view->scale;
 851         doc_rect->x2 = doc_rect->x1 + (double) view_rect->width / view->scale;
 852         doc_rect->y2 = doc_rect->y1 + (double) view_rect->height / view->scale;
 853 }
 854
 855 static gboolean
 856 doc_point_to_view_point (EvView       *view,
 857                          int           page,
 858                          EvPoint      *doc_point,
 859                          GdkPoint     *view_point)
 860 {
 861         GdkRectangle page_area;
 862         GtkBorder border;
 863         double x, y, view_x, view_y;
 864         int width, height;
 865
 866         ev_page_cache_get_size (view->page_cache, page,
 867                                 view->rotation,
 868                                 1.0,
 869                                 &width, &height);
 870
 871         if (view->rotation == 0) {
 872                 x = doc_point->x;
 873                 y = doc_point->y;
 874         } else if (view->rotation == 90) {
 875                 x = width - doc_point->y;
 876                 y = doc_point->x;
 877         } else if (view->rotation == 180) {
 878                 x = width - doc_point->x;
 879                 y = height - doc_point->y;
 880         } else if (view->rotation == 270) {
 881                 x = doc_point->y;
 882                 y = height - doc_point->x;
 883         } else {
 884                 g_assert_not_reached ();
 885         }
 886
 887         get_page_extents (view, page, &page_area, &border);
 888
 889         view_x = x * view->scale;
 890         view_y = y * view->scale;
 891         view_point->x = view_x + page_area.x;
 892         view_point->y = view_y + page_area.y;
 893
 894         return (view_x > 0 && view_x <= page_area.width &&
 895                 view_y > 0 && view_y <= page_area.height);
 896 }
 897
 898 static void
 899 doc_rect_to_view_rect (EvView       *view,
 900                        int           page,
 901                        EvRectangle  *doc_rect,
 902                        GdkRectangle *view_rect)
 903 {
 904         GdkRectangle page_area;
 905         GtkBorder border;
 906         double x, y, w, h;
 907         int width, height;
 908
 909         ev_page_cache_get_size (view->page_cache, page,
 910                                 view->rotation,
 911                                 1.0,
 912                                 &width, &height);
 913
 914         if (view->rotation == 0) {
 915                 x = doc_rect->x1;
 916                 y = doc_rect->y1;
 917                 w = doc_rect->x2 - doc_rect->x1;
 918                 h = doc_rect->y2 - doc_rect->y1;
 919         } else if (view->rotation == 90) {
 920                 x = width - doc_rect->y2;
 921                 y = doc_rect->x1;
 922                 w = doc_rect->y2 - doc_rect->y1;
 923                 h = doc_rect->x2 - doc_rect->x1;
 924         } else if (view->rotation == 180) {
 925                 x = width - doc_rect->x2;
 926                 y = height - doc_rect->y2;
 927                 w = doc_rect->x2 - doc_rect->x1;
 928                 h = doc_rect->y2 - doc_rect->y1;
 929         } else if (view->rotation == 270) {
 930                 x = doc_rect->y1;
 931                 y = height - doc_rect->x2;
 932                 w = doc_rect->y2 - doc_rect->y1;
 933                 h = doc_rect->x2 - doc_rect->x1;
 934         } else {
 935                 g_assert_not_reached ();
 936         }
 937
 938         get_page_extents (view, page, &page_area, &border);
 939
 940         view_rect->x = x * view->scale + page_area.x;
 941         view_rect->y = y * view->scale + page_area.y;
 942         view_rect->width = w * view->scale;
 943         view_rect->height = h * view->scale;
 944 }
 945
 946 static void
 947 find_page_at_location (EvView  *view,
 948                        gdouble  x,
 949                        gdouble  y,
 950                        gint    *page,
 951                        gint    *x_offset,
 952                        gint    *y_offset)
 953 {
 954         int i;
 955
 956         if (view->document == NULL)
 957                 return;
 958
 959         g_assert (page);
 960         g_assert (x_offset);
 961         g_assert (y_offset);
 962
 963         for (i = view->start_page; i <= view->end_page; i++) {
 964                 GdkRectangle page_area;
 965                 GtkBorder border;
 966
 967                 if (! get_page_extents (view, i, &page_area, &border))
 968                         continue;
 969
 970                 if ((x >= page_area.x + border.left) &&
 971                     (x < page_area.x + page_area.width - border.right) &&
 972                     (y >= page_area.y + border.top) &&
 973                     (y < page_area.y + page_area.height - border.bottom)) {
 974                         *page = i;
 975                         *x_offset = x - (page_area.x + border.left);
 976                         *y_offset = y - (page_area.y + border.top);
 977                         return;
 978                 }
 979         }
 980
 981         *page = -1;
 982 }
 983
 984 static gboolean
 985 location_in_text (EvView  *view,
 986                   gdouble  x,
 987                   gdouble  y)
 988 {
 989         GdkRegion *region;
 990         gint page = -1;
 991         gint x_offset = 0, y_offset = 0;
 992
 993         find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
 994
 995         if (page == -1)
 996                 return FALSE;
 997
 998         region = ev_pixbuf_cache_get_text_mapping (view->pixbuf_cache, page);
 999
1000         if (region)
1001                 return gdk_region_point_in (region, x_offset / view->scale, y_offset / view->scale);
1002         else
1003                 return FALSE;
1004 }
1005
1006 static int
1007 ev_view_get_width (EvView *view)
1008 {
1009         return GTK_WIDGET (view)->allocation.width;
1010 }
1011
1012 static int
1013 ev_view_get_height (EvView *view)
1014 {
1015         return GTK_WIDGET (view)->allocation.height;
1016 }
1017
1018 static gboolean
1019 location_in_selected_text (EvView  *view,
1020                            gdouble  x,
1021                            gdouble  y)
1022 {
1023         gint page = -1;
1024         gint x_offset = 0, y_offset = 0;
1025         EvViewSelection *selection;
1026         GList *l = NULL;
1027
1028         for (l = view->selection_info.selections; l != NULL; l = l->next) {
1029                 selection = (EvViewSelection *)l->data;
1030
1031                 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1032
1033                 if (page != selection->page)
1034                         continue;
1035
1036                 if (selection->covered_region &&
1037                     gdk_region_point_in (selection->covered_region, x_offset, y_offset))
1038                         return TRUE;
1039         }
1040
1041         return FALSE;
1042 }
1043
1044 /*** Hyperref ***/
1045 static EvLink *
1046 ev_view_get_link_at_location (EvView  *view,
1047                               gdouble  x,
1048                               gdouble  y)
1049 {
1050         gint page = -1;
1051         gint x_offset = 0, y_offset = 0;
1052         GList *link_mapping;
1053
1054         x += view->scroll_x;
1055         y += view->scroll_y;
1056
1057         find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1058
1059         if (page == -1)
1060                 return NULL;
1061
1062         link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
1063
1064         if (link_mapping)
1065                 return ev_link_mapping_find (link_mapping, x_offset / view->scale, y_offset / view->scale);
1066         else
1067                 return NULL;
1068 }
1069
1070 static void
1071 goto_fitr_link (EvView *view, EvLink *link)
1072 {
1073         EvPoint doc_point;
1074         int page;
1075         double zoom;
1076
1077         zoom = zoom_for_size_best_fit (ev_link_get_right (link) - ev_link_get_left (link),
1078                                        ev_link_get_top (link) - ev_link_get_bottom (link),
1079                                        ev_view_get_width (view),
1080                                        ev_view_get_height (view), 0, 0);
1081
1082         ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1083         ev_view_set_zoom (view, zoom, FALSE);
1084
1085         page = ev_link_get_page (link);
1086         doc_point.x = ev_link_get_left (link);
1087         doc_point.y = ev_link_get_top (link);
1088
1089         view->current_page = page;
1090         view->pending_point = doc_point;
1091         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1092
1093         gtk_widget_queue_resize (GTK_WIDGET (view));
1094 }
1095
1096 static void
1097 goto_fitv_link (EvView *view, EvLink *link)
1098 {
1099         EvPoint doc_point;
1100         int doc_width, doc_height, page;
1101         double zoom;
1102
1103         page = ev_link_get_page (link);
1104         ev_page_cache_get_size (view->page_cache, page, 0, 1.0, &doc_width, &doc_height);
1105
1106         doc_point.x = ev_link_get_left (link);
1107         doc_point.y = 0;
1108
1109         zoom = zoom_for_size_fit_height (doc_width - doc_point.x , doc_height,
1110                                          ev_view_get_width (view),
1111                                          ev_view_get_height (view), 0);
1112
1113         ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1114         ev_view_set_zoom (view, zoom, FALSE);
1115
1116         view->current_page = page;
1117         view->pending_point = doc_point;
1118         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1119
1120         gtk_widget_queue_resize (GTK_WIDGET (view));
1121 }
1122
1123 static void
1124 goto_fith_link (EvView *view, EvLink *link)
1125 {
1126         EvPoint doc_point;
1127         int doc_width, doc_height, page;
1128         double zoom;
1129
1130         page = ev_link_get_page (link);
1131         ev_page_cache_get_size (view->page_cache, page, 0, 1.0, &doc_width, &doc_height);
1132
1133         doc_point.x = 0;
1134         doc_point.y = doc_height - ev_link_get_top (link);
1135
1136         zoom = zoom_for_size_fit_width (doc_width, ev_link_get_top (link),
1137                                         ev_view_get_width (view),
1138                                         ev_view_get_height (view), 0);
1139
1140         ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1141         ev_view_set_zoom (view, zoom, FALSE);
1142
1143         view->current_page = page;
1144         view->pending_point = doc_point;
1145         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1146
1147         gtk_widget_queue_resize (GTK_WIDGET (view));
1148 }
1149
1150 static void
1151 goto_fit_link (EvView *view, EvLink *link)
1152 {
1153         double zoom;
1154         int doc_width, doc_height;
1155         int page;
1156
1157         page = ev_link_get_page (link);
1158         ev_page_cache_get_size (view->page_cache, page, 0, 1.0, &doc_width, &doc_height);
1159
1160         zoom = zoom_for_size_best_fit (doc_width, doc_height, ev_view_get_width (view),
1161                                        ev_view_get_height (view), 0, 0);
1162
1163         ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1164         ev_view_set_zoom (view, zoom, FALSE);
1165
1166         view->current_page = page;
1167         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1168
1169         gtk_widget_queue_resize (GTK_WIDGET (view));
1170 }
1171
1172 static void
1173 goto_xyz_link (EvView *view, EvLink *link)
1174 {
1175         EvPoint doc_point;
1176         int height, page;
1177         double zoom;
1178
1179         zoom = ev_link_get_zoom (link);
1180         page = ev_link_get_page (link);
1181         ev_page_cache_get_size (view->page_cache, page, 0, 1.0, NULL, &height);
1182
1183         if (zoom != 0) {
1184                 ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1185                 ev_view_set_zoom (view, zoom, FALSE);
1186         }
1187
1188         doc_point.x = ev_link_get_left (link);
1189         doc_point.y = height - ev_link_get_top (link);
1190
1191         view->current_page = page;
1192         view->pending_point = doc_point;
1193         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1194
1195         gtk_widget_queue_resize (GTK_WIDGET (view));
1196 }
1197
1198 void
1199 ev_view_goto_link (EvView *view, EvLink *link)
1200 {
1201         EvLinkType type;
1202         int page;
1203
1204         type = ev_link_get_link_type (link);
1205
1206         switch (type) {
1207                 case EV_LINK_TYPE_TITLE:
1208                         break;
1209                 case EV_LINK_TYPE_PAGE:
1210                         page = ev_link_get_page (link);
1211                         ev_page_cache_set_current_page (view->page_cache, page);
1212                         break;
1213                 case EV_LINK_TYPE_PAGE_FIT:
1214                         goto_fit_link (view, link);
1215                         break;
1216                 case EV_LINK_TYPE_PAGE_FITH:
1217                         goto_fith_link (view, link);
1218                         break;
1219                 case EV_LINK_TYPE_PAGE_FITV:
1220                         goto_fitv_link (view, link);
1221                         break;
1222                 case EV_LINK_TYPE_PAGE_FITR:
1223                         goto_fitr_link (view, link);
1224                         break;
1225                 case EV_LINK_TYPE_PAGE_XYZ:
1226                         goto_xyz_link (view, link);
1227                         break;
1228                 case EV_LINK_TYPE_EXTERNAL_URI:
1229                 case EV_LINK_TYPE_LAUNCH:
1230                         g_signal_emit (view, signals[SIGNAL_EXTERNAL_LINK], 0, link);
1231                         break;
1232         }
1233 }
1234
1235 static char *
1236 tip_from_link (EvView *view, EvLink *link)
1237 {
1238         EvLinkType type;
1239         char *msg = NULL;
1240         char *page_label;
1241
1242         type = ev_link_get_link_type (link);
1243
1244         switch (type) {
1245                 case EV_LINK_TYPE_TITLE:
1246                         if (ev_link_get_title (link))
1247                                 msg = g_strdup (ev_link_get_title (link));
1248                         break;
1249                 case EV_LINK_TYPE_PAGE:
1250                 case EV_LINK_TYPE_PAGE_XYZ:
1251                         page_label = ev_page_cache_get_page_label (view->page_cache, ev_link_get_page (link));
1252                         msg = g_strdup_printf (_("Go to page %s"), page_label);
1253                         g_free (page_label);
1254                         break;
1255                 case EV_LINK_TYPE_EXTERNAL_URI:
1256                         msg = g_strdup (ev_link_get_uri (link));
1257                         break;
1258                 default:
1259                         break;
1260         }
1261
1262         return msg;
1263 }
1264
1265 static void
1266 handle_link_over_xy (EvView *view, gint x, gint y)
1267 {
1268         EvLink *link;
1269
1270         link = ev_view_get_link_at_location (view, x, y);
1271
1272         if (view->link_tooltip == NULL) {
1273                 view->link_tooltip = ev_tooltip_new (GTK_WIDGET (view));
1274         }
1275
1276         if (view->hovered_link != link) {
1277                 view->hovered_link = link;
1278                 ev_tooltip_deactivate (EV_TOOLTIP (view->link_tooltip));
1279         }
1280
1281         if (link) {
1282                 char *msg = tip_from_link (view, link);
1283
1284                 if (msg && g_utf8_validate (msg, -1, NULL)) {
1285                         EvTooltip *tooltip = EV_TOOLTIP (view->link_tooltip);
1286
1287                         ev_tooltip_set_position (tooltip, x, y);
1288                         ev_tooltip_set_text (tooltip, msg);
1289                         ev_tooltip_activate (tooltip);
1290                 }
1291                 g_free (msg);
1292
1293                 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
1294         } else if (location_in_text (view, x + view->scroll_x, y + view->scroll_y)) {
1295                 ev_view_set_cursor (view, EV_VIEW_CURSOR_IBEAM);
1296         } else {
1297                 ev_view_set_status (view, NULL);
1298                 if (view->cursor == EV_VIEW_CURSOR_LINK ||
1299                     view->cursor == EV_VIEW_CURSOR_IBEAM)
1300                         ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1301         }
1302         return;
1303 }
1304
1305 /*** GtkWidget implementation ***/
1306
1307 static void
1308 ev_view_size_request_continuous_dual_page (EvView         *view,
1309                                            GtkRequisition *requisition)
1310 {
1311         int max_width;
1312         gint n_pages;
1313         GtkBorder border;
1314
1315         ev_page_cache_get_max_width (view->page_cache, view->rotation,
1316                                      view->scale, &max_width);
1317         compute_border (view, max_width, max_width, &border);
1318
1319         n_pages = ev_page_cache_get_n_pages (view->page_cache) + 1;
1320
1321         requisition->width = (max_width + border.left + border.right) * 2 + (view->spacing * 3);
1322         get_page_y_offset (view, n_pages, view->scale, &requisition->height);
1323
1324         if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1325                 requisition->width = 1;
1326         } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1327                 requisition->width = 1;
1328                 /* FIXME: This could actually be set on one page docs or docs
1329                  * with a strange aspect ratio. */
1330                 /* requisition->height = 1;*/
1331         }
1332 }
1333
1334 static void
1335 ev_view_size_request_continuous (EvView         *view,
1336                                  GtkRequisition *requisition)
1337 {
1338         int max_width;
1339         int n_pages;
1340         GtkBorder border;
1341
1342
1343         ev_page_cache_get_max_width (view->page_cache, view->rotation,
1344                                      view->scale, &max_width);
1345         n_pages = ev_page_cache_get_n_pages (view->page_cache);
1346         compute_border (view, max_width, max_width, &border);
1347
1348         requisition->width = max_width + (view->spacing * 2) + border.left + border.right;
1349         get_page_y_offset (view, n_pages, view->scale, &requisition->height);
1350
1351         if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1352                 requisition->width = 1;
1353         } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1354                 requisition->width = 1;
1355                 /* FIXME: This could actually be set on one page docs or docs
1356                  * with a strange aspect ratio. */
1357                 /* requisition->height = 1;*/
1358         }
1359 }
1360
1361 static void
1362 ev_view_size_request_dual_page (EvView         *view,
1363                                 GtkRequisition *requisition)
1364 {
1365         GtkBorder border;
1366         gint width, height;
1367
1368         /* Find the largest of the two. */
1369         ev_page_cache_get_size (view->page_cache,
1370                                 view->current_page,
1371                                 view->rotation,
1372                                 view->scale,
1373                                 &width, &height);
1374         if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache)) {
1375                 gint width_2, height_2;
1376                 ev_page_cache_get_size (view->page_cache,
1377                                         view->current_page + 1,
1378                                         view->rotation,
1379                                         view->scale,
1380                                         &width_2, &height_2);
1381                 if (width_2 > width) {
1382                         width = width_2;
1383                         height = height_2;
1384                 }
1385         }
1386         compute_border (view, width, height, &border);
1387
1388         requisition->width = ((width + border.left + border.right) * 2) +
1389                 (view->spacing * 3);
1390         requisition->height = (height + border.top + border.bottom) +
1391                 (view->spacing * 2);
1392
1393         if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1394                 requisition->width = 1;
1395         } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1396                 requisition->width = 1;
1397                 requisition->height = 1;
1398         }
1399 }
1400
1401 static void
1402 ev_view_size_request_single_page (EvView         *view,
1403                                   GtkRequisition *requisition)
1404 {
1405         GtkBorder border;
1406         gint width, height;
1407
1408         ev_page_cache_get_size (view->page_cache,
1409                                 view->current_page,
1410                                 view->rotation,
1411                                 view->scale,
1412                                 &width, &height);
1413         compute_border (view, width, height, &border);
1414
1415         requisition->width = width + border.left + border.right + (2 * view->spacing);
1416         requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1417
1418         if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1419                 requisition->width = 1;
1420                 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1421         } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1422                 requisition->width = 1;
1423                 requisition->height = 1;
1424         }
1425 }
1426
1427 static void
1428 ev_view_size_request (GtkWidget      *widget,
1429                       GtkRequisition *requisition)
1430 {
1431         EvView *view = EV_VIEW (widget);
1432
1433         if (view->document == NULL) {
1434                 requisition->width = 1;
1435                 requisition->height = 1;
1436                 return;
1437         }
1438
1439         if (view->presentation) {
1440                 requisition->width = 1;
1441                 requisition->height = 1;
1442                 return;
1443         }
1444
1445         if (view->continuous && view->dual_page)
1446                 ev_view_size_request_continuous_dual_page (view, requisition);
1447         else if (view->continuous)
1448                 ev_view_size_request_continuous (view, requisition);
1449         else if (view->dual_page)
1450                 ev_view_size_request_dual_page (view, requisition);
1451         else
1452                 ev_view_size_request_single_page (view, requisition);
1453 }
1454
1455 static void
1456 ev_view_size_allocate (GtkWidget      *widget,
1457                        GtkAllocation  *allocation)
1458 {
1459         EvView *view = EV_VIEW (widget);
1460
1461         if (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
1462             view->sizing_mode == EV_SIZING_BEST_FIT) {
1463
1464                 g_signal_emit (view, signals[SIGNAL_ZOOM_INVALID], 0);
1465
1466                 ev_view_size_request (widget, &widget->requisition);
1467         }
1468
1469         view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
1470         view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
1471
1472         view->pending_scroll = SCROLL_TO_KEEP_POSITION;
1473         view->pending_resize = FALSE;
1474
1475         if (view->document)
1476                 view_update_range_and_current_page (view);
1477
1478         GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
1479 }
1480
1481 static void
1482 ev_view_realize (GtkWidget *widget)
1483 {
1484         EvView *view = EV_VIEW (widget);
1485         GdkWindowAttr attributes;
1486
1487         GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
1488
1489
1490         attributes.window_type = GDK_WINDOW_CHILD;
1491         attributes.wclass = GDK_INPUT_OUTPUT;
1492         attributes.visual = gtk_widget_get_visual (widget);
1493         attributes.colormap = gtk_widget_get_colormap (widget);
1494
1495         attributes.x = widget->allocation.x;
1496         attributes.y = widget->allocation.y;
1497         attributes.width = widget->allocation.width;
1498         attributes.height = widget->allocation.height;
1499         attributes.event_mask = GDK_EXPOSURE_MASK |
1500                                 GDK_BUTTON_PRESS_MASK |
1501                                 GDK_BUTTON_RELEASE_MASK |
1502                                 GDK_SCROLL_MASK |
1503                                 GDK_KEY_PRESS_MASK |
1504                                 GDK_POINTER_MOTION_MASK |
1505                                 GDK_POINTER_MOTION_HINT_MASK |
1506                                 GDK_ENTER_NOTIFY_MASK |
1507                                 GDK_LEAVE_NOTIFY_MASK;
1508
1509         widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1510                                          &attributes,
1511                                          GDK_WA_X | GDK_WA_Y |
1512                                          GDK_WA_COLORMAP |
1513                                          GDK_WA_VISUAL);
1514         gdk_window_set_user_data (widget->window, widget);
1515         widget->style = gtk_style_attach (widget->style, widget->window);
1516
1517         if (view->presentation)
1518                 gdk_window_set_background (widget->window, &widget->style->black);
1519         else
1520                 gdk_window_set_background (widget->window, &widget->style->mid [GTK_STATE_NORMAL]);
1521 }
1522
1523 static gboolean
1524 ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event)
1525 {
1526         EvView *view = EV_VIEW (widget);
1527         guint state;
1528
1529         state = event->state & gtk_accelerator_get_default_mod_mask ();
1530
1531         if (state == GDK_CONTROL_MASK && view->presentation == FALSE) {
1532                 ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1533
1534                 if (event->direction == GDK_SCROLL_UP ||
1535                     event->direction == GDK_SCROLL_LEFT) {
1536                         if (ev_view_can_zoom_in (view)) {
1537                                 ev_view_zoom_in (view);
1538                         }
1539                 } else {
1540                         if (ev_view_can_zoom_out (view)) {
1541                                 ev_view_zoom_out (view);
1542                         }
1543                 }
1544
1545                 return TRUE;
1546         }
1547
1548         view->jump_to_find_result = FALSE;
1549         /* Shift+Wheel scrolls the in the perpendicular direction */
1550         if (state & GDK_SHIFT_MASK) {
1551                 if (event->direction == GDK_SCROLL_UP)
1552                         event->direction = GDK_SCROLL_LEFT;
1553                 if (event->direction == GDK_SCROLL_LEFT)
1554                         event->direction = GDK_SCROLL_UP;
1555                 if (event->direction == GDK_SCROLL_DOWN)
1556                         event->direction = GDK_SCROLL_RIGHT;
1557                 if (event->direction == GDK_SCROLL_RIGHT)
1558                         event->direction = GDK_SCROLL_DOWN;
1559
1560                 event->state &= ~GDK_SHIFT_MASK;
1561                 state &= ~GDK_SHIFT_MASK;
1562         }
1563
1564         if (state == 0 && view->presentation) {
1565                 switch (event->direction) {
1566                 case GDK_SCROLL_DOWN:
1567                 case GDK_SCROLL_RIGHT:
1568                         ev_view_next_page (view);
1569                         break;
1570                 case GDK_SCROLL_UP:
1571                 case GDK_SCROLL_LEFT:
1572                         ev_view_previous_page (view);
1573                         break;
1574                 }
1575
1576                 return TRUE;
1577         }
1578
1579         return FALSE;
1580 }
1581
1582 static EvViewSelection *
1583 find_selection_for_page (EvView *view,
1584                          gint    page)
1585 {
1586         GList *list;
1587
1588         for (list = view->selection_info.selections; list != NULL; list = list->next) {
1589                 EvViewSelection *selection;
1590
1591                 selection = (EvViewSelection *) list->data;
1592
1593                 if (selection->page == page)
1594                         return selection;
1595         }
1596
1597         return NULL;
1598 }
1599
1600 static gboolean
1601 ev_view_expose_event (GtkWidget      *widget,
1602                       GdkEventExpose *event)
1603 {
1604         EvView *view = EV_VIEW (widget);
1605         int i;
1606
1607         if (view->loading) {
1608                 draw_loading_text (view,
1609                                    &(widget->allocation),
1610                                    &(event->area));
1611         }
1612
1613         if (view->document == NULL)
1614                 return FALSE;
1615
1616         for (i = view->start_page; i <= view->end_page; i++) {
1617                 GdkRectangle page_area;
1618                 GtkBorder border;
1619
1620                 if (!get_page_extents (view, i, &page_area, &border))
1621                         continue;
1622
1623                 page_area.x -= view->scroll_x;
1624                 page_area.y -= view->scroll_y;
1625
1626                 draw_one_page (view, i, &page_area, &border, &(event->area));
1627
1628                 if (EV_IS_DOCUMENT_FIND (view->document))
1629                         highlight_find_results (view, i);
1630         }
1631
1632         return FALSE;
1633 }
1634
1635 static gboolean
1636 ev_view_popup_menu (GtkWidget *widget)
1637 {
1638     gint x, y;
1639     EvLink *link;
1640     EvView *view = EV_VIEW (widget);
1641
1642     gtk_widget_get_pointer (widget, &x, &y);
1643     link = ev_view_get_link_at_location (view, x, y);
1644     g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, link);
1645     return TRUE;
1646 }
1647
1648 static gboolean
1649 ev_view_button_press_event (GtkWidget      *widget,
1650                             GdkEventButton *event)
1651 {
1652         EvView *view = EV_VIEW (widget);
1653         EvLink *link;
1654
1655         if (!GTK_WIDGET_HAS_FOCUS (widget)) {
1656                 gtk_widget_grab_focus (widget);
1657         }
1658
1659         view->pressed_button = event->button;
1660         view->selection_info.in_drag = FALSE;
1661
1662         switch (event->button) {
1663                 case 1:
1664                         if (view->selection_info.selections) {
1665                                 if (location_in_selected_text (view,
1666                                                                event->x + view->scroll_x,
1667                                                                event->y + view->scroll_y)) {
1668                                         view->selection_info.in_drag = TRUE;
1669                                 } else {
1670                                         clear_selection (view);
1671                                 }
1672
1673                                 gtk_widget_queue_draw (widget);
1674                         }
1675
1676                         view->selection_info.start.x = event->x + view->scroll_x;
1677                         view->selection_info.start.y = event->y + view->scroll_y;
1678
1679                         return TRUE;
1680                 case 2:
1681                         /* use root coordinates as reference point because
1682                          * scrolling changes window relative coordinates */
1683                         view->drag_info.start.x = event->x_root;
1684                         view->drag_info.start.y = event->y_root;
1685                         view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment);
1686                         view->drag_info.vadj = gtk_adjustment_get_value (view->vadjustment);
1687
1688                         ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
1689
1690                         return TRUE;
1691                 case 3:
1692                         link = ev_view_get_link_at_location (view, event->x, event->y);
1693                         g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, link);
1694                         return TRUE;
1695         }
1696
1697         return FALSE;
1698 }
1699
1700 static void
1701 ev_view_drag_data_get (GtkWidget        *widget,
1702                        GdkDragContext   *context,
1703                        GtkSelectionData *selection_data,
1704                        guint             info,
1705                        guint             time)
1706 {
1707         EvView *view = EV_VIEW (widget);
1708
1709         if (view->selection_info.selections &&
1710             ev_document_can_get_text (view->document)) {
1711                 gchar *text;
1712
1713                 text = get_selected_text (view);
1714
1715                 gtk_selection_data_set_text (selection_data, text, strlen (text));
1716
1717                 g_free (text);
1718         }
1719 }
1720
1721 static gboolean
1722 selection_update_idle_cb (EvView *view)
1723 {
1724         compute_selections (view, &view->selection_info.start, &view->motion);
1725         view->selection_update_id = 0;
1726         return FALSE;
1727 }
1728
1729 static gboolean
1730 selection_scroll_timeout_cb (EvView *view)
1731 {
1732         gint x, y, shift = 0;
1733         GtkWidget *widget = GTK_WIDGET (view);
1734
1735         gtk_widget_get_pointer (widget, &x, &y);
1736
1737         if (y > widget->allocation.height) {
1738                 shift = (y - widget->allocation.height) / 2;
1739         } else if (y < 0) {
1740                 shift = y / 2;
1741         }
1742
1743         if (shift)
1744                 gtk_adjustment_set_value (view->vadjustment,
1745                                           CLAMP (view->vadjustment->value + shift,
1746                                           view->vadjustment->lower,
1747                                           view->vadjustment->upper -
1748                                           view->vadjustment->page_size));
1749
1750         if (x > widget->allocation.width) {
1751                 shift = (x - widget->allocation.width) / 2;
1752         } else if (x < 0) {
1753                 shift = x / 2;
1754         }
1755
1756         if (shift)
1757                 gtk_adjustment_set_value (view->hadjustment,
1758                                           CLAMP (view->hadjustment->value + shift,
1759                                           view->hadjustment->lower,
1760                                           view->hadjustment->upper -
1761                                           view->hadjustment->page_size));
1762
1763         return TRUE;
1764 }
1765
1766 static gboolean
1767 ev_view_motion_notify_event (GtkWidget      *widget,
1768                              GdkEventMotion *event)
1769 {
1770         EvView *view = EV_VIEW (widget);
1771         gint x, y;
1772
1773         if (!view->document)
1774                 return FALSE;
1775
1776         if (event->is_hint || event->window != widget->window) {
1777             gtk_widget_get_pointer (widget, &x, &y);
1778         } else {
1779             x = event->x;
1780             y = event->y;
1781         }
1782
1783         if (view->selection_info.in_drag) {
1784                 if (gtk_drag_check_threshold (widget,
1785                                               view->selection_info.start.x,
1786                                               view->selection_info.start.y,
1787                                               x, y)) {
1788                         GdkDragContext *context;
1789                         GtkTargetList *target_list = gtk_target_list_new (NULL, 0);
1790
1791                         gtk_target_list_add_text_targets (target_list, 0);
1792
1793                         context = gtk_drag_begin (widget, target_list,
1794                                                   GDK_ACTION_COPY,
1795                                                   1, (GdkEvent *)event);
1796
1797                         view->selection_info.in_drag = FALSE;
1798
1799                         gtk_target_list_unref (target_list);
1800
1801                         return TRUE;
1802                 }
1803         }
1804
1805         /* For the Evince 0.4.x release, we limit selection to un-rotated
1806          * documents only.
1807          */
1808         if (view->pressed_button == 1 && view->rotation == 0) {
1809
1810                 /* Schedule timeout to scroll during selection and additionally
1811                  * scroll once to allow arbitrary speed. */
1812                 if (!view->selection_scroll_id)
1813                     view->selection_scroll_id = g_timeout_add (SCROLL_TIME, (GSourceFunc)selection_scroll_timeout_cb, view);
1814                 else
1815                     selection_scroll_timeout_cb (view);
1816
1817                 view->selection_info.in_selection = TRUE;
1818                 view->motion.x = x + view->scroll_x;
1819                 view->motion.y = y + view->scroll_y;
1820
1821                 /* Queue an idle to handle the motion.  We do this because
1822                  * handling any selection events in the motion could be slower
1823                  * than new motion events reach us.  We always put it in the
1824                  * idle to make sure we catch up and don't visibly lag the
1825                  * mouse. */
1826                 if (!view->selection_update_id)
1827                         view->selection_update_id = g_idle_add ((GSourceFunc)selection_update_idle_cb, view);
1828
1829                 return TRUE;
1830         } else if (view->pressed_button == 2) {
1831                 if (!view->drag_info.in_drag) {
1832                         gboolean start;
1833
1834                         start = gtk_drag_check_threshold (widget,
1835                                                           view->drag_info.start.x,
1836                                                           view->drag_info.start.y,
1837                                                           event->x_root,
1838                                                           event->y_root);
1839                         view->drag_info.in_drag = start;
1840                 }
1841
1842                 if (view->drag_info.in_drag) {
1843                         int dx, dy;
1844                         gdouble dhadj_value, dvadj_value;
1845
1846                         dx = event->x_root - view->drag_info.start.x;
1847                         dy = event->y_root - view->drag_info.start.y;
1848
1849                         dhadj_value = view->hadjustment->page_size *
1850                                       (gdouble)dx / widget->allocation.width;
1851                         dvadj_value = view->vadjustment->page_size *
1852                                       (gdouble)dy / widget->allocation.height;
1853
1854                         /* clamp scrolling to visible area */
1855                         gtk_adjustment_set_value (view->hadjustment,
1856                                                   MIN(view->drag_info.hadj - dhadj_value,
1857                                                       view->hadjustment->upper -
1858                                                       view->hadjustment->page_size));
1859                         gtk_adjustment_set_value (view->vadjustment,
1860                                                   MIN(view->drag_info.vadj - dvadj_value,
1861                                                       view->vadjustment->upper -
1862                                                       view->vadjustment->page_size));
1863
1864                         return TRUE;
1865                 }
1866         /* For the Evince 0.4.x release, we limit links to un-rotated documents
1867          * only.
1868          */
1869         } else if (view->pressed_button <= 0 &&
1870                    view->rotation == 0) {
1871                 handle_link_over_xy (view, x, y);
1872                 return TRUE;
1873         }
1874
1875         return FALSE;
1876 }
1877
1878 static gboolean
1879 ev_view_button_release_event (GtkWidget      *widget,
1880                               GdkEventButton *event)
1881 {
1882         EvView *view = EV_VIEW (widget);
1883         EvLink *link;
1884
1885         if (view->pressed_button == 2) {
1886                 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1887         }
1888
1889         if (view->document) {
1890                 link = ev_view_get_link_at_location (view, event->x, event->y);
1891         } else {
1892                 link = NULL;
1893         }
1894
1895         view->pressed_button = -1;
1896         view->drag_info.in_drag = FALSE;
1897
1898         if (view->selection_scroll_id) {
1899             g_source_remove (view->selection_scroll_id);
1900             view->selection_scroll_id = 0;
1901         }
1902         if (view->selection_update_id) {
1903             g_source_remove (view->selection_update_id);
1904             view->selection_update_id = 0;
1905         }
1906
1907         if (view->selection_info.selections) {
1908                 ev_view_update_primary_selection (view);
1909
1910                 if (view->selection_info.in_drag) {
1911                         clear_selection (view);
1912                         gtk_widget_queue_draw (widget);
1913                 }
1914
1915                 view->selection_info.in_drag = FALSE;
1916         } else if (link) {
1917                 ev_view_goto_link (view, link);
1918         } else if (view->presentation) {
1919                 switch (event->button) {
1920                 case 1:
1921                         ev_view_next_page (view);
1922                         return TRUE;
1923                 case 3:
1924                         ev_view_previous_page (view);
1925                         return TRUE;
1926                 }
1927         }
1928
1929         return FALSE;
1930 }
1931
1932 static gint
1933 ev_view_focus_in (GtkWidget     *widget,
1934                   GdkEventFocus *event)
1935 {
1936         if (EV_VIEW (widget)->pixbuf_cache)
1937                 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
1938         gtk_widget_queue_draw (widget);
1939
1940         return FALSE;
1941 }
1942
1943 static gint
1944 ev_view_focus_out (GtkWidget     *widget,
1945                      GdkEventFocus *event)
1946 {
1947         if (EV_VIEW (widget)->pixbuf_cache)
1948                 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
1949         gtk_widget_queue_draw (widget);
1950
1951         return FALSE;
1952 }
1953
1954 static gboolean
1955 ev_view_leave_notify_event (GtkWidget *widget, GdkEventCrossing   *event)
1956 {
1957         EvView *view = EV_VIEW (widget);
1958
1959         ev_view_set_status (view, NULL);
1960
1961         if (view->cursor == EV_VIEW_CURSOR_LINK ||
1962             view->cursor == EV_VIEW_CURSOR_IBEAM)
1963                 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1964
1965         if (view->link_tooltip) {
1966                 view->hovered_link = NULL;
1967                 ev_tooltip_deactivate (EV_TOOLTIP (view->link_tooltip));
1968         }
1969
1970         return FALSE;
1971 }
1972
1973 static gboolean
1974 ev_view_enter_notify_event (GtkWidget *widget, GdkEventCrossing   *event)
1975 {
1976         EvView *view = EV_VIEW (widget);
1977
1978         handle_link_over_xy (view, event->x, event->y);
1979
1980         return FALSE;
1981 }
1982
1983 static void
1984 ev_view_style_set (GtkWidget *widget,
1985                    GtkStyle  *old_style)
1986 {
1987         if (EV_VIEW (widget)->pixbuf_cache)
1988                 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
1989
1990         GTK_WIDGET_CLASS (ev_view_parent_class)->style_set (widget, old_style);
1991 }
1992
1993 /*** Drawing ***/
1994
1995 static guint32
1996 ev_gdk_color_to_rgb (const GdkColor *color)
1997 {
1998   guint32 result;
1999   result = (0xff0000 | (color->red & 0xff00));
2000   result <<= 8;
2001   result |= ((color->green & 0xff00) | (color->blue >> 8));
2002   return result;
2003 }
2004
2005 static void
2006 draw_rubberband (GtkWidget *widget, GdkWindow *window,
2007                  const GdkRectangle *rect, guchar alpha)
2008 {
2009         GdkGC *gc;
2010         GdkPixbuf *pixbuf;
2011         GdkColor *fill_color_gdk;
2012         guint fill_color;
2013
2014         fill_color_gdk = gdk_color_copy (&GTK_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
2015         fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
2016
2017         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
2018                                  rect->width, rect->height);
2019         gdk_pixbuf_fill (pixbuf, fill_color);
2020
2021         gdk_draw_pixbuf (window, NULL, pixbuf,
2022                          0, 0,
2023                          rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
2024                          rect->width, rect->height,
2025                          GDK_RGB_DITHER_NONE,
2026                          0, 0);
2027
2028         g_object_unref (pixbuf);
2029
2030         gc = gdk_gc_new (window);
2031         gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
2032         gdk_draw_rectangle (window, gc, FALSE,
2033                             rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
2034                             rect->width - 1,
2035                             rect->height - 1);
2036         g_object_unref (gc);
2037
2038         gdk_color_free (fill_color_gdk);
2039 }
2040
2041
2042 static void
2043 highlight_find_results (EvView *view, int page)
2044 {
2045         EvDocumentFind *find;
2046         int i, results = 0;
2047
2048         g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document));
2049
2050         find = EV_DOCUMENT_FIND (view->document);
2051
2052         results = ev_document_find_get_n_results (find, page);
2053
2054         for (i = 0; i < results; i++) {
2055                 EvRectangle rectangle;
2056                 GdkRectangle view_rectangle;
2057                 guchar alpha;
2058
2059                 if (i == view->find_result && page == view->current_page) {
2060                         alpha = 0x90;
2061                 } else {
2062                         alpha = 0x20;
2063                 }
2064
2065                 ev_document_find_get_result (find, page, i, &rectangle);
2066                 doc_rect_to_view_rect (view, page, &rectangle, &view_rectangle);
2067                 draw_rubberband (GTK_WIDGET (view), GTK_WIDGET(view)->window,
2068                                  &view_rectangle, alpha);
2069         }
2070 }
2071
2072 static void
2073 draw_loading_text (EvView       *view,
2074                    GdkRectangle *page_area,
2075                    GdkRectangle *expose_area)
2076 {
2077         PangoLayout *layout;
2078         PangoFontDescription *font_desc;
2079         PangoRectangle logical_rect;
2080         double real_scale;
2081         int target_width;
2082
2083         const char *loading_text = _("Loading...");
2084
2085         layout = gtk_widget_create_pango_layout (GTK_WIDGET (view), loading_text);
2086
2087         font_desc = pango_font_description_new ();
2088
2089
2090         /* We set the font to be 10 points, get the size, and scale appropriately */
2091         pango_font_description_set_size (font_desc, 10 * PANGO_SCALE);
2092         pango_layout_set_font_description (layout, font_desc);
2093         pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
2094
2095         /* Make sure we fit the middle of the page */
2096         target_width = MAX (page_area->width / 2, 1);
2097         real_scale = ((double)target_width / (double) logical_rect.width) * (PANGO_SCALE * 10);
2098         pango_font_description_set_size (font_desc, (int)real_scale);
2099         pango_layout_set_font_description (layout, font_desc);
2100         pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
2101
2102         gtk_paint_layout (GTK_WIDGET (view)->style,
2103                           GTK_WIDGET (view)->window,
2104                           GTK_WIDGET_STATE (view),
2105                           FALSE,
2106                           page_area,
2107                           GTK_WIDGET (view),
2108                           NULL,
2109                           page_area->x + (target_width/2),
2110                           page_area->y + (page_area->height - logical_rect.height) / 2,
2111                           layout);
2112
2113         pango_font_description_free (font_desc);
2114         g_object_unref (layout);
2115 }
2116
2117 static void
2118 draw_one_page (EvView          *view,
2119                gint             page,
2120                GdkRectangle    *page_area,
2121                GtkBorder       *border,
2122                GdkRectangle    *expose_area)
2123 {
2124         gint width, height;
2125         GdkPixbuf *current_pixbuf;
2126         GdkRectangle overlap;
2127         GdkRectangle real_page_area;
2128         EvViewSelection *selection;
2129         gint current_page;
2130
2131         g_assert (view->document);
2132
2133         if (! gdk_rectangle_intersect (page_area, expose_area, &overlap))
2134                 return;
2135
2136         current_page = ev_page_cache_get_current_page (view->page_cache);
2137         selection = find_selection_for_page (view, page);
2138         ev_page_cache_get_size (view->page_cache,
2139                                 page, view->rotation,
2140                                 view->scale,
2141                                 &width, &height);
2142         /* Render the document itself */
2143         real_page_area = *page_area;
2144
2145         real_page_area.x += border->left;
2146         real_page_area.y += border->top;
2147         real_page_area.width -= (border->left + border->right);
2148         real_page_area.height -= (border->top + border->bottom);
2149
2150         ev_document_misc_paint_one_page (GTK_WIDGET(view)->window,
2151                                          GTK_WIDGET (view),
2152                                          page_area, border,
2153                                          page == current_page);
2154
2155         if (gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) {
2156                 GdkPixbuf *selection_pixbuf = NULL;
2157                 GdkPixbuf *scaled_image;
2158                 GdkPixbuf *scaled_selection;
2159
2160                 current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, page);
2161
2162                 /* Get the selection pixbuf iff we have something to draw */
2163                 if (current_pixbuf && view->selection_mode == EV_VIEW_SELECTION_TEXT && selection)
2164                         selection_pixbuf = ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache,
2165                                                                                  page,
2166                                                                                  view->scale,
2167                                                                                  NULL);
2168
2169                 if (current_pixbuf == NULL)
2170                         scaled_image = NULL;
2171                 else if (width == gdk_pixbuf_get_width (current_pixbuf) &&
2172                          height == gdk_pixbuf_get_height (current_pixbuf))
2173                         scaled_image = g_object_ref (current_pixbuf);
2174                 else
2175                         /* FIXME: We don't want to scale the whole area, just the right
2176                          * area of it */
2177                         scaled_image = gdk_pixbuf_scale_simple (current_pixbuf,
2178                                                                 width, height,
2179                                                                 GDK_INTERP_NEAREST);
2180
2181                 if (selection_pixbuf == NULL)
2182                         scaled_selection = NULL;
2183                 else if (width == gdk_pixbuf_get_width (selection_pixbuf) &&
2184                          height == gdk_pixbuf_get_height (selection_pixbuf))
2185                         scaled_selection = g_object_ref (selection_pixbuf);
2186                 else
2187                         /* FIXME: We don't want to scale the whole area, just the right
2188                          * area of it */
2189                         scaled_selection = gdk_pixbuf_scale_simple (selection_pixbuf,
2190                                                                     width, height,
2191                                                                     GDK_INTERP_NEAREST);
2192
2193                 if (scaled_image) {
2194                         gdk_draw_pixbuf (GTK_WIDGET(view)->window,
2195                                          GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
2196                                          scaled_image,
2197                                          overlap.x - real_page_area.x,
2198                                          overlap.y - real_page_area.y,
2199                                          overlap.x, overlap.y,
2200                                          overlap.width, overlap.height,
2201                                          GDK_RGB_DITHER_NORMAL,
2202                                          0, 0);
2203                         g_object_unref (scaled_image);
2204                 } else {
2205                         draw_loading_text (view,
2206                                            &real_page_area,
2207                                            expose_area);
2208                 }
2209
2210                 if (scaled_selection) {
2211                         gdk_draw_pixbuf (GTK_WIDGET(view)->window,
2212                                          GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
2213                                          scaled_selection,
2214                                          overlap.x - real_page_area.x,
2215                                          overlap.y - real_page_area.y,
2216                                          overlap.x, overlap.y,
2217                                          overlap.width, overlap.height,
2218                                          GDK_RGB_DITHER_NORMAL,
2219                                          0, 0);
2220                         g_object_unref (scaled_selection);
2221                 }
2222         }
2223 }
2224
2225 /*** GObject functions ***/
2226
2227 static void
2228 ev_view_finalize (GObject *object)
2229 {
2230         EvView *view = EV_VIEW (object);
2231
2232         LOG ("Finalize");
2233
2234         g_free (view->status);
2235         g_free (view->find_status);
2236
2237         clear_selection (view);
2238
2239         G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
2240 }
2241
2242 static void
2243 ev_view_destroy (GtkObject *object)
2244 {
2245         EvView *view = EV_VIEW (object);
2246
2247         if (view->document) {
2248                 g_object_unref (view->document);
2249                 view->document = NULL;
2250         }
2251
2252         if (view->pixbuf_cache) {
2253                 g_object_unref (view->pixbuf_cache);
2254                 view->pixbuf_cache = NULL;
2255         }
2256
2257         if (view->link_tooltip) {
2258                 gtk_widget_destroy (view->link_tooltip);
2259         }
2260
2261         if (view->selection_scroll_id) {
2262             g_source_remove (view->selection_scroll_id);
2263             view->selection_scroll_id = 0;
2264         }
2265
2266         if (view->selection_update_id) {
2267             g_source_remove (view->selection_update_id);
2268             view->selection_update_id = 0;
2269         }
2270
2271         ev_view_set_scroll_adjustments (view, NULL, NULL);
2272
2273         GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
2274 }
2275
2276 static void
2277 ev_view_set_property (GObject      *object,
2278                       guint         prop_id,
2279                       const GValue *value,
2280                       GParamSpec   *pspec)
2281 {
2282         EvView *view = EV_VIEW (object);
2283
2284         switch (prop_id)
2285         {
2286         case PROP_CONTINUOUS:
2287                 ev_view_set_continuous (view, g_value_get_boolean (value));
2288                 break;
2289         case PROP_DUAL_PAGE:
2290                 ev_view_set_dual_page (view, g_value_get_boolean (value));
2291                 break;
2292         case PROP_FULLSCREEN:
2293                 ev_view_set_fullscreen (view, g_value_get_boolean (value));
2294                 break;
2295         case PROP_PRESENTATION:
2296                 ev_view_set_presentation (view, g_value_get_boolean (value));
2297                 break;
2298         case PROP_SIZING_MODE:
2299                 ev_view_set_sizing_mode (view, g_value_get_enum (value));
2300                 break;
2301         case PROP_ZOOM:
2302                 ev_view_set_zoom (view, g_value_get_double (value), FALSE);
2303                 break;
2304         case PROP_ROTATION:
2305                 ev_view_set_rotation (view, g_value_get_int (value));
2306                 break;
2307         default:
2308                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
2309         }
2310 }
2311
2312 static AtkObject *
2313 ev_view_get_accessible (GtkWidget *widget)
2314 {
2315         static gboolean first_time = TRUE;
2316
2317         if (first_time) {
2318                 AtkObjectFactory *factory;
2319                 AtkRegistry *registry;
2320                 GType derived_type;
2321                 GType derived_atk_type;
2322
2323                 /*
2324                  * Figure out whether accessibility is enabled by looking at the
2325                  * type of the accessible object which would be created for
2326                  * the parent type of EvView.
2327                  */
2328                 derived_type = g_type_parent (EV_TYPE_VIEW);
2329
2330                 registry = atk_get_default_registry ();
2331                 factory = atk_registry_get_factory (registry,
2332                                                     derived_type);
2333                 derived_atk_type = atk_object_factory_get_accessible_type (factory);
2334                 if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE))
2335                         atk_registry_set_factory_type (registry,
2336                                                        EV_TYPE_VIEW,
2337                                                        ev_view_accessible_factory_get_type ());
2338                 first_time = FALSE;
2339         }
2340         return GTK_WIDGET_CLASS (ev_view_parent_class)->get_accessible (widget);
2341 }
2342
2343 static void
2344 ev_view_get_property (GObject *object,
2345                       guint prop_id,
2346                       GValue *value,
2347                       GParamSpec *pspec)
2348 {
2349         EvView *view = EV_VIEW (object);
2350
2351         switch (prop_id)
2352         {
2353         case PROP_STATUS:
2354                 g_value_set_string (value, view->status);
2355                 break;
2356         case PROP_FIND_STATUS:
2357                 g_value_set_string (value, view->status);
2358                 break;
2359         case PROP_CONTINUOUS:
2360                 g_value_set_boolean (value, view->continuous);
2361                 break;
2362         case PROP_DUAL_PAGE:
2363                 g_value_set_boolean (value, view->dual_page);
2364                 break;
2365         case PROP_FULLSCREEN:
2366                 g_value_set_boolean (value, view->fullscreen);
2367                 break;
2368         case PROP_PRESENTATION:
2369                 g_value_set_boolean (value, view->presentation);
2370                 break;
2371         case PROP_SIZING_MODE:
2372                 g_value_set_enum (value, view->sizing_mode);
2373                 break;
2374         case PROP_ZOOM:
2375                 g_value_set_double (value, view->scale);
2376                 break;
2377         case PROP_ROTATION:
2378                 g_value_set_int (value, view->rotation);
2379                 break;
2380         case PROP_HAS_SELECTION:
2381                 g_value_set_boolean (value,
2382                                      view->selection_info.selections != NULL);
2383                 break;
2384         default:
2385                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
2386         }
2387 }
2388
2389 static void
2390 ev_view_class_init (EvViewClass *class)
2391 {
2392         GObjectClass *object_class = G_OBJECT_CLASS (class);
2393         GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
2394         GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
2395         GtkBindingSet *binding_set;
2396
2397         object_class->finalize = ev_view_finalize;
2398         object_class->set_property = ev_view_set_property;
2399         object_class->get_property = ev_view_get_property;
2400
2401         widget_class->expose_event = ev_view_expose_event;
2402         widget_class->button_press_event = ev_view_button_press_event;
2403         widget_class->motion_notify_event = ev_view_motion_notify_event;
2404         widget_class->button_release_event = ev_view_button_release_event;
2405         widget_class->focus_in_event = ev_view_focus_in;
2406         widget_class->focus_out_event = ev_view_focus_out;
2407         widget_class->get_accessible = ev_view_get_accessible;
2408         widget_class->size_request = ev_view_size_request;
2409         widget_class->size_allocate = ev_view_size_allocate;
2410         widget_class->realize = ev_view_realize;
2411         widget_class->scroll_event = ev_view_scroll_event;
2412         widget_class->enter_notify_event = ev_view_enter_notify_event;
2413         widget_class->leave_notify_event = ev_view_leave_notify_event;
2414         widget_class->style_set = ev_view_style_set;
2415         widget_class->drag_data_get = ev_view_drag_data_get;
2416         widget_class->popup_menu = ev_view_popup_menu;
2417         gtk_object_class->destroy = ev_view_destroy;
2418
2419         class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
2420         class->binding_activated = ev_view_scroll;
2421
2422         widget_class->set_scroll_adjustments_signal =
2423             g_signal_new ("set-scroll-adjustments",
2424                           G_OBJECT_CLASS_TYPE (object_class),
2425                           G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
2426                           G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
2427                           NULL, NULL,
2428                           ev_marshal_VOID__OBJECT_OBJECT,
2429                           G_TYPE_NONE, 2,
2430                           GTK_TYPE_ADJUSTMENT,
2431                           GTK_TYPE_ADJUSTMENT);
2432
2433         signals[SIGNAL_BINDING_ACTIVATED] = g_signal_new ("binding_activated",
2434                          G_TYPE_FROM_CLASS (object_class),
2435                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
2436                          G_STRUCT_OFFSET (EvViewClass, binding_activated),
2437                          NULL, NULL,
2438                          ev_marshal_VOID__ENUM_BOOLEAN,
2439                          G_TYPE_NONE, 2,
2440                          GTK_TYPE_SCROLL_TYPE,
2441                          G_TYPE_BOOLEAN);
2442
2443         signals[SIGNAL_ZOOM_INVALID] = g_signal_new ("zoom-invalid",
2444                          G_TYPE_FROM_CLASS (object_class),
2445                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
2446                          G_STRUCT_OFFSET (EvViewClass, zoom_invalid),
2447                          NULL, NULL,
2448                          ev_marshal_VOID__VOID,
2449                          G_TYPE_NONE, 0, G_TYPE_NONE);
2450         signals[SIGNAL_EXTERNAL_LINK] = g_signal_new ("external-link",
2451                          G_TYPE_FROM_CLASS (object_class),
2452                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
2453                          G_STRUCT_OFFSET (EvViewClass, external_link),
2454                          NULL, NULL,
2455                          g_cclosure_marshal_VOID__OBJECT,
2456                          G_TYPE_NONE, 1,
2457                          G_TYPE_OBJECT);
2458         signals[SIGNAL_POPUP_MENU] = g_signal_new ("popup",
2459                          G_TYPE_FROM_CLASS (object_class),
2460                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
2461                          G_STRUCT_OFFSET (EvViewClass, popup_menu),
2462                          NULL, NULL,
2463                          g_cclosure_marshal_VOID__OBJECT,
2464                          G_TYPE_NONE, 1,
2465                          G_TYPE_OBJECT);
2466
2467         g_object_class_install_property (object_class,
2468                                          PROP_STATUS,
2469                                          g_param_spec_string ("status",
2470                                                               "Status Message",
2471                                                               "The status message",
2472                                                               NULL,
2473                                                               G_PARAM_READABLE));
2474
2475         g_object_class_install_property (object_class,
2476                                          PROP_FIND_STATUS,
2477                                          g_param_spec_string ("find-status",
2478                                                               "Find Status Message",
2479                                                               "The find status message",
2480                                                               NULL,
2481                                                               G_PARAM_READABLE));
2482
2483         g_object_class_install_property (object_class,
2484                                          PROP_CONTINUOUS,
2485                                          g_param_spec_boolean ("continuous",
2486                                                                "Continuous",
2487                                                                "Continuous scrolling mode",
2488                                                                TRUE,
2489                                                                G_PARAM_READWRITE));
2490
2491         g_object_class_install_property (object_class,
2492                                          PROP_DUAL_PAGE,
2493                                          g_param_spec_boolean ("dual-page",
2494                                                                "Dual Page",
2495                                                                "Two pages visible at once",
2496                                                                FALSE,
2497                                                                G_PARAM_READWRITE));
2498         g_object_class_install_property (object_class,
2499                                          PROP_FULLSCREEN,
2500                                          g_param_spec_boolean ("fullscreen",
2501                                                                "Full Screen",
2502                                                                "Draw page in a fullscreen fashion",
2503                                                                FALSE,
2504                                                                G_PARAM_READWRITE));
2505         g_object_class_install_property (object_class,
2506                                          PROP_PRESENTATION,
2507                                          g_param_spec_boolean ("presentation",
2508                                                                "Presentation",
2509                                                                "Draw page in presentation mode",
2510                                                                TRUE,
2511                                                                G_PARAM_READWRITE));
2512
2513         g_object_class_install_property (object_class,
2514                                          PROP_SIZING_MODE,
2515                                          g_param_spec_enum ("sizing-mode",
2516                                                             "Sizing Mode",
2517                                                             "Sizing Mode",
2518                                                             EV_TYPE_SIZING_MODE,
2519                                                             EV_SIZING_FIT_WIDTH,
2520                                                             G_PARAM_READWRITE));
2521
2522         g_object_class_install_property (object_class,
2523                                          PROP_ZOOM,
2524                                          g_param_spec_double ("zoom",
2525                                                               "Zoom factor",
2526                                                                "Zoom factor",
2527                                                                MIN_SCALE,
2528                                                                MAX_SCALE,
2529                                                                1.0,
2530                                                                G_PARAM_READWRITE));
2531         g_object_class_install_property (object_class,
2532                                          PROP_ROTATION,
2533                                          g_param_spec_double ("rotation",
2534                                                               "Rotation",
2535                                                                "Rotation",
2536                                                                0,
2537                                                                360,
2538                                                                0,
2539                                                                G_PARAM_READWRITE));
2540         g_object_class_install_property (object_class,
2541                                          PROP_HAS_SELECTION,
2542                                          g_param_spec_boolean ("has-selection",
2543                                                                "Has selection",
2544                                                                "The view has selections",
2545                                                                FALSE,
2546                                                                G_PARAM_READABLE));
2547
2548         binding_set = gtk_binding_set_by_class (class);
2549
2550         add_scroll_binding_keypad (binding_set, GDK_Left,  0, EV_SCROLL_STEP_BACKWARD, TRUE);
2551         add_scroll_binding_keypad (binding_set, GDK_Right, 0, EV_SCROLL_STEP_FORWARD,  TRUE);
2552         add_scroll_binding_keypad (binding_set, GDK_Left,  GDK_MOD1_MASK, EV_SCROLL_STEP_DOWN, TRUE);
2553         add_scroll_binding_keypad (binding_set, GDK_Right, GDK_MOD1_MASK, EV_SCROLL_STEP_UP,  TRUE);
2554         add_scroll_binding_keypad (binding_set, GDK_Up,    0, EV_SCROLL_STEP_BACKWARD, FALSE);
2555         add_scroll_binding_keypad (binding_set, GDK_Down,  0, EV_SCROLL_STEP_FORWARD,  FALSE);
2556         add_scroll_binding_keypad (binding_set, GDK_Up,    GDK_MOD1_MASK, EV_SCROLL_STEP_DOWN, FALSE);
2557         add_scroll_binding_keypad (binding_set, GDK_Down,  GDK_MOD1_MASK, EV_SCROLL_STEP_UP,  FALSE);
2558 }
2559
2560 static void
2561 ev_view_init (EvView *view)
2562 {
2563         GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
2564
2565         view->spacing = 5;
2566         view->scale = 1.0;
2567         view->current_page = 0;
2568         view->pressed_button = -1;
2569         view->cursor = EV_VIEW_CURSOR_NORMAL;
2570         view->drag_info.in_drag = FALSE;
2571         view->selection_info.selections = NULL;
2572         view->selection_info.in_selection = FALSE;
2573         view->selection_info.in_drag = FALSE;
2574         view->selection_mode = EV_VIEW_SELECTION_TEXT;
2575         view->continuous = TRUE;
2576         view->dual_page = FALSE;
2577         view->presentation = FALSE;
2578         view->fullscreen = FALSE;
2579         view->sizing_mode = EV_SIZING_FIT_WIDTH;
2580         view->pending_scroll = SCROLL_TO_KEEP_POSITION;
2581         view->jump_to_find_result = TRUE;
2582 }
2583
2584 /*** Callbacks ***/
2585
2586 static void
2587 find_changed_cb (EvDocument *document, int page, EvView *view)
2588 {
2589         double percent;
2590         int n_pages;
2591
2592         percent = ev_document_find_get_progress
2593                         (EV_DOCUMENT_FIND (view->document));
2594         n_pages = ev_page_cache_get_n_pages (view->page_cache);
2595
2596         if (view->jump_to_find_result == TRUE) {
2597                 jump_to_find_page (view, EV_VIEW_FIND_NEXT, 0);
2598                 jump_to_find_result (view);
2599         }
2600         update_find_status_message (view, percent * n_pages >= n_pages - 1 );
2601         if (view->current_page == page)
2602                 gtk_widget_queue_draw (GTK_WIDGET (view));
2603 }
2604
2605 static void
2606 job_finished_cb (EvPixbufCache *pixbuf_cache,
2607                  EvView        *view)
2608 {
2609         gtk_widget_queue_draw (GTK_WIDGET (view));
2610 }
2611
2612 static void
2613 page_changed_cb (EvPageCache *page_cache,
2614                  int          new_page,
2615                  EvView      *view)
2616 {
2617         if (view->current_page != new_page) {
2618                 view->current_page = new_page;
2619                 view->pending_scroll = SCROLL_TO_PAGE_POSITION;
2620                 gtk_widget_queue_resize (GTK_WIDGET (view));
2621         } else {
2622                 gtk_widget_queue_draw (GTK_WIDGET (view));
2623         }
2624
2625         if (EV_IS_DOCUMENT_FIND (view->document)) {
2626                 view->find_result = 0;
2627                 update_find_status_message (view, TRUE);
2628         }
2629 }
2630
2631 static void on_adjustment_value_changed (GtkAdjustment  *adjustment,
2632                                          EvView *view)
2633 {
2634         int dx = 0, dy = 0;
2635
2636         if (! GTK_WIDGET_REALIZED (view))
2637                 return;
2638
2639         if (view->hadjustment) {
2640                 dx = view->scroll_x - (int) view->hadjustment->value;
2641                 view->scroll_x = (int) view->hadjustment->value;
2642         } else {
2643                 view->scroll_x = 0;
2644         }
2645
2646         if (view->vadjustment) {
2647                 dy = view->scroll_y - (int) view->vadjustment->value;
2648                 view->scroll_y = (int) view->vadjustment->value;
2649         } else {
2650                 view->scroll_y = 0;
2651         }
2652
2653
2654         if (view->pending_resize)
2655                 gtk_widget_queue_draw (GTK_WIDGET (view));
2656         else
2657                 gdk_window_scroll (GTK_WIDGET (view)->window, dx, dy);
2658
2659
2660         if (view->document)
2661                 view_update_range_and_current_page (view);
2662 }
2663
2664 GtkWidget*
2665 ev_view_new (void)
2666 {
2667         GtkWidget *view;
2668
2669         view = g_object_new (EV_TYPE_VIEW, NULL);
2670
2671         return view;
2672 }
2673
2674 static void
2675 setup_caches (EvView *view)
2676 {
2677         view->page_cache = ev_page_cache_get (view->document);
2678         g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
2679         view->pixbuf_cache = ev_pixbuf_cache_new (GTK_WIDGET (view), view->document);
2680         g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
2681 }
2682
2683 static void
2684 clear_caches (EvView *view)
2685 {
2686         if (view->pixbuf_cache) {
2687                 g_object_unref (view->pixbuf_cache);
2688                 view->pixbuf_cache = NULL;
2689         }
2690
2691         if (view->page_cache) {
2692                 view->page_cache = NULL;
2693         }
2694 }
2695
2696 void
2697 ev_view_set_loading (EvView       *view,
2698                      gboolean      loading)
2699 {
2700         view->loading = loading;
2701         gtk_widget_queue_draw (GTK_WIDGET (view));
2702 }
2703
2704 void
2705 ev_view_set_document (EvView     *view,
2706                       EvDocument *document)
2707 {
2708         g_return_if_fail (EV_IS_VIEW (view));
2709
2710         view->loading = FALSE;
2711
2712         if (document != view->document) {
2713                 clear_caches (view);
2714
2715                 if (view->document) {
2716                         g_signal_handlers_disconnect_by_func (view->document,
2717                                                               find_changed_cb,
2718                                                               view);
2719                         g_object_unref (view->document);
2720                         view->page_cache = NULL;
2721
2722                 }
2723
2724                 view->document = document;
2725                 view->find_result = 0;
2726
2727                 if (view->document) {
2728                         g_object_ref (view->document);
2729                         if (EV_IS_DOCUMENT_FIND (view->document)) {
2730                                 g_signal_connect (view->document,
2731                                                   "find_changed",
2732                                                   G_CALLBACK (find_changed_cb),
2733                                                   view);
2734                         }
2735
2736                         setup_caches (view);
2737                 }
2738
2739                 gtk_widget_queue_resize (GTK_WIDGET (view));
2740         }
2741 }
2742
2743 /*** Zoom and sizing mode ***/
2744
2745 #define EPSILON 0.0000001
2746 void
2747 ev_view_set_zoom (EvView   *view,
2748                   double    factor,
2749                   gboolean  relative)
2750 {
2751         double scale;
2752
2753         if (relative)
2754                 scale = view->scale * factor;
2755         else
2756                 scale = factor;
2757
2758         scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
2759
2760         if (ABS (view->scale - scale) < EPSILON)
2761                 return;
2762
2763         view->scale = scale;
2764         view->pending_resize = TRUE;
2765
2766         gtk_widget_queue_resize (GTK_WIDGET (view));
2767
2768         g_object_notify (G_OBJECT (view), "zoom");
2769 }
2770
2771 double
2772 ev_view_get_zoom (EvView *view)
2773 {
2774         return view->scale;
2775 }
2776
2777 gboolean
2778 ev_view_get_continuous (EvView *view)
2779 {
2780         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2781
2782         return view->continuous;
2783 }
2784
2785 void
2786 ev_view_set_continuous (EvView   *view,
2787                         gboolean  continuous)
2788 {
2789         g_return_if_fail (EV_IS_VIEW (view));
2790
2791         continuous = continuous != FALSE;
2792
2793         if (view->continuous != continuous) {
2794                 view->continuous = continuous;
2795                 view->pending_scroll = SCROLL_TO_PAGE_POSITION;
2796                 gtk_widget_queue_resize (GTK_WIDGET (view));
2797         }
2798
2799         g_object_notify (G_OBJECT (view), "continuous");
2800 }
2801
2802 gboolean
2803 ev_view_get_dual_page (EvView *view)
2804 {
2805         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2806
2807         return view->dual_page;
2808 }
2809
2810 void
2811 ev_view_set_dual_page (EvView   *view,
2812                        gboolean  dual_page)
2813 {
2814         g_return_if_fail (EV_IS_VIEW (view));
2815
2816         dual_page = dual_page != FALSE;
2817
2818         if (view->dual_page == dual_page)
2819                 return;
2820
2821         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
2822         view->dual_page = dual_page;
2823         /* FIXME: if we're keeping the pixbuf cache around, we should extend the
2824          * preload_cache_size to be 2 if dual_page is set.
2825          */
2826         gtk_widget_queue_resize (GTK_WIDGET (view));
2827
2828         g_object_notify (G_OBJECT (view), "dual-page");
2829 }
2830
2831 void
2832 ev_view_set_fullscreen (EvView   *view,
2833                          gboolean  fullscreen)
2834 {
2835         g_return_if_fail (EV_IS_VIEW (view));
2836
2837         fullscreen = fullscreen != FALSE;
2838
2839         if (view->fullscreen == fullscreen)
2840                 return;
2841
2842         view->fullscreen = fullscreen;
2843         gtk_widget_queue_resize (GTK_WIDGET (view));
2844
2845         g_object_notify (G_OBJECT (view), "fullscreen");
2846 }
2847
2848 gboolean
2849 ev_view_get_fullscreen (EvView *view)
2850 {
2851         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2852
2853         return view->fullscreen;
2854 }
2855
2856 void
2857 ev_view_set_presentation (EvView   *view,
2858                           gboolean  presentation)
2859 {
2860         g_return_if_fail (EV_IS_VIEW (view));
2861
2862         presentation = presentation != FALSE;
2863
2864         if (view->presentation == presentation)
2865                 return;
2866
2867         view->presentation = presentation;
2868         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
2869         gtk_widget_queue_resize (GTK_WIDGET (view));
2870
2871         if (GTK_WIDGET_REALIZED (view)) {
2872                 if (view->presentation)
2873                         gdk_window_set_background (GTK_WIDGET(view)->window,
2874                                                    &GTK_WIDGET (view)->style->black);
2875                 else
2876                         gdk_window_set_background (GTK_WIDGET(view)->window,
2877                                                    &GTK_WIDGET (view)->style->mid [GTK_STATE_NORMAL]);
2878         }
2879
2880
2881         g_object_notify (G_OBJECT (view), "presentation");
2882 }
2883
2884 gboolean
2885 ev_view_get_presentation (EvView *view)
2886 {
2887         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2888
2889         return view->presentation;
2890 }
2891
2892 void
2893 ev_view_set_sizing_mode (EvView       *view,
2894                          EvSizingMode  sizing_mode)
2895 {
2896         g_return_if_fail (EV_IS_VIEW (view));
2897
2898         if (view->sizing_mode == sizing_mode)
2899                 return;
2900
2901         view->sizing_mode = sizing_mode;
2902         gtk_widget_queue_resize (GTK_WIDGET (view));
2903
2904         g_object_notify (G_OBJECT (view), "sizing-mode");
2905 }
2906
2907 EvSizingMode
2908 ev_view_get_sizing_mode (EvView *view)
2909 {
2910         g_return_val_if_fail (EV_IS_VIEW (view), EV_SIZING_FREE);
2911
2912         return view->sizing_mode;
2913 }
2914
2915 gboolean
2916 ev_view_can_zoom_in (EvView *view)
2917 {
2918         return view->scale * ZOOM_IN_FACTOR <= MAX_SCALE;
2919 }
2920
2921 gboolean
2922 ev_view_can_zoom_out (EvView *view)
2923 {
2924         return view->scale * ZOOM_OUT_FACTOR >= MIN_SCALE;
2925 }
2926
2927 void
2928 ev_view_zoom_in (EvView *view)
2929 {
2930         g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2931
2932         view->pending_scroll = SCROLL_TO_CENTER;
2933         ev_view_set_zoom (view, ZOOM_IN_FACTOR, TRUE);
2934 }
2935
2936 void
2937 ev_view_zoom_out (EvView *view)
2938 {
2939         g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2940
2941         view->pending_scroll = SCROLL_TO_CENTER;
2942         ev_view_set_zoom (view, ZOOM_OUT_FACTOR, TRUE);
2943 }
2944
2945 void
2946 ev_view_rotate_right (EvView *view)
2947 {
2948         int rotation = view->rotation + 90;
2949
2950         if (rotation >= 360) {
2951                 rotation -= 360;
2952         }
2953
2954         ev_view_set_rotation (view, rotation);
2955 }
2956
2957 void
2958 ev_view_rotate_left (EvView *view)
2959 {
2960         int rotation = view->rotation - 90;
2961
2962         if (rotation < 0) {
2963                 rotation += 360;
2964         }
2965
2966         ev_view_set_rotation (view, rotation);
2967 }
2968
2969 void
2970 ev_view_set_rotation (EvView *view, int rotation)
2971 {
2972         view->rotation = rotation;
2973
2974         if (view->pixbuf_cache) {
2975                 ev_pixbuf_cache_clear (view->pixbuf_cache);
2976                 gtk_widget_queue_resize (GTK_WIDGET (view));
2977         }
2978
2979         if (rotation != 0)
2980                 clear_selection (view);
2981
2982         g_object_notify (G_OBJECT (view), "rotation");
2983 }
2984
2985 int
2986 ev_view_get_rotation (EvView *view)
2987 {
2988         return view->rotation;
2989 }
2990
2991 static double
2992 zoom_for_size_fit_width (int doc_width,
2993                          int doc_height,
2994                          int target_width,
2995                          int target_height,
2996                          int vsb_width)
2997 {
2998         double scale;
2999
3000         scale = (double)target_width / doc_width;
3001
3002         if (doc_height * scale > target_height)
3003                 scale = (double) (target_width - vsb_width) / doc_width;
3004
3005         return scale;
3006 }
3007
3008 static double
3009 zoom_for_size_fit_height (int doc_width,
3010                           int doc_height,
3011                           int target_width,
3012                           int target_height,
3013                           int vsb_height)
3014 {
3015         double scale;
3016
3017         scale = (double)target_height / doc_height;
3018
3019         if (doc_width * scale > target_width)
3020                 scale = (double) (target_height - vsb_height) / doc_height;
3021
3022         return scale;
3023 }
3024
3025 static double
3026 zoom_for_size_best_fit (int doc_width,
3027                         int doc_height,
3028                         int target_width,
3029                         int target_height,
3030                         int vsb_width,
3031                         int hsb_width)
3032 {
3033         double w_scale;
3034         double h_scale;
3035
3036         w_scale = (double)target_width / doc_width;
3037         h_scale = (double)target_height / doc_height;
3038
3039         if (doc_height * w_scale > target_height)
3040                 w_scale = (double) (target_width - vsb_width) / doc_width;
3041         if (doc_width * h_scale > target_width)
3042                 h_scale = (double) (target_height - hsb_width) / doc_height;
3043
3044         return MIN (w_scale, h_scale);
3045 }
3046
3047
3048 static void
3049 ev_view_zoom_for_size_presentation (EvView *view,
3050                                     int     width,
3051                                     int     height)
3052 {
3053         int doc_width, doc_height;
3054         gdouble scale;
3055
3056         ev_page_cache_get_size (view->page_cache,
3057                                 view->current_page,
3058                                 view->rotation,
3059                                 1.0,
3060                                 &doc_width,
3061                                 &doc_height);
3062         scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, 0, 0);
3063         ev_view_set_zoom (view, scale, FALSE);
3064 }
3065
3066 static void
3067 ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
3068                            int     width,
3069                            int     height,
3070                            int     vsb_width,
3071                            int     hsb_height)
3072 {
3073         int doc_width, doc_height;
3074         GtkBorder border;
3075         gdouble scale;
3076
3077         ev_page_cache_get_max_width (view->page_cache,
3078                                      view->rotation,
3079                                      1.0,
3080                                      &doc_width);
3081         ev_page_cache_get_max_height (view->page_cache,
3082                                       view->rotation,
3083                                       1.0,
3084                                       &doc_height);
3085         compute_border (view, doc_width, doc_height, &border);
3086
3087         doc_width = doc_width * 2;
3088         width -= (2 * (border.left + border.right) + 3 * view->spacing);
3089         height -= (border.top + border.bottom + 2 * view->spacing - 1);
3090
3091         /* FIXME: We really need to calculate the overall height here, not the
3092          * page height.  We assume there's always a vertical scrollbar for
3093          * now.  We need to fix this. */
3094         if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
3095                 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
3096         else if (view->sizing_mode == EV_SIZING_BEST_FIT)
3097                 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
3098         else
3099                 g_assert_not_reached ();
3100
3101         ev_view_set_zoom (view, scale, FALSE);
3102 }
3103
3104 static void
3105 ev_view_zoom_for_size_continuous (EvView *view,
3106                                   int     width,
3107                                   int     height,
3108                                   int     vsb_width,
3109                                   int     hsb_height)
3110 {
3111         int doc_width, doc_height;
3112         GtkBorder border;
3113         gdouble scale;
3114
3115         ev_page_cache_get_max_width (view->page_cache,
3116                                      view->rotation,
3117                                      1.0,
3118                                      &doc_width);
3119         ev_page_cache_get_max_height (view->page_cache,
3120                                       view->rotation,
3121                                       1.0,
3122                                       &doc_height);
3123         compute_border (view, doc_width, doc_height, &border);
3124
3125         width -= (border.left + border.right + 2 * view->spacing);
3126         height -= (border.top + border.bottom + 2 * view->spacing - 1);
3127
3128         /* FIXME: We really need to calculate the overall height here, not the
3129          * page height.  We assume there's always a vertical scrollbar for
3130          * now.  We need to fix this. */
3131         if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
3132                 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
3133         else if (view->sizing_mode == EV_SIZING_BEST_FIT)
3134                 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
3135         else
3136                 g_assert_not_reached ();
3137
3138         ev_view_set_zoom (view, scale, FALSE);
3139 }
3140
3141 static void
3142 ev_view_zoom_for_size_dual_page (EvView *view,
3143                                  int     width,
3144                                  int     height,
3145                                  int     vsb_width,
3146                                  int     hsb_height)
3147 {
3148         GtkBorder border;
3149         gint doc_width, doc_height;
3150         gdouble scale;
3151         gint other_page;
3152
3153         other_page = view->current_page ^ 1;
3154
3155         /* Find the largest of the two. */
3156         ev_page_cache_get_size (view->page_cache,
3157                                 view->current_page,
3158                                 view->rotation,
3159                                 1.0,
3160                                 &doc_width, &doc_height);
3161
3162         if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
3163                 gint width_2, height_2;
3164                 ev_page_cache_get_size (view->page_cache,
3165                                         other_page,
3166                                         view->rotation,
3167                                         1.0,
3168                                         &width_2, &height_2);
3169                 if (width_2 > doc_width)
3170                         doc_width = width_2;
3171                 if (height_2 > doc_height)
3172                         doc_height = height_2;
3173         }
3174         compute_border (view, doc_width, doc_height, &border);
3175
3176         doc_width = doc_width * 2;
3177         width -= ((border.left + border.right)* 2 + 3 * view->spacing);
3178         height -= (border.top + border.bottom + 2 * view->spacing);
3179
3180         if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
3181                 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
3182         else if (view->sizing_mode == EV_SIZING_BEST_FIT)
3183                 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
3184         else
3185                 g_assert_not_reached ();
3186
3187         ev_view_set_zoom (view, scale, FALSE);
3188 }
3189
3190 static void
3191 ev_view_zoom_for_size_single_page (EvView *view,
3192                                    int     width,
3193                                    int     height,
3194                                    int     vsb_width,
3195                                    int     hsb_height)
3196 {
3197         int doc_width, doc_height;
3198         GtkBorder border;
3199         gdouble scale;
3200
3201         ev_page_cache_get_size (view->page_cache,
3202                                 view->current_page,
3203                                 view->rotation,
3204                                 1.0,
3205                                 &doc_width,
3206                                 &doc_height);
3207         /* Get an approximate border */
3208         compute_border (view, width, height, &border);
3209
3210         width -= (border.left + border.right + 2 * view->spacing);
3211         height -= (border.top + border.bottom + 2 * view->spacing);
3212
3213         if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
3214                 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
3215         else if (view->sizing_mode == EV_SIZING_BEST_FIT)
3216                 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
3217         else
3218                 g_assert_not_reached ();
3219
3220         ev_view_set_zoom (view, scale, FALSE);
3221 }
3222
3223 void
3224 ev_view_set_zoom_for_size (EvView *view,
3225                            int     width,
3226                            int     height,
3227                            int     vsb_width,
3228                            int     hsb_height)
3229 {
3230         g_return_if_fail (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
3231                           view->sizing_mode == EV_SIZING_BEST_FIT);
3232         g_return_if_fail (width >= 0);
3233         g_return_if_fail (height >= 0);
3234
3235         if (view->document == NULL)
3236                 return;
3237
3238         if (view->presentation)
3239                 ev_view_zoom_for_size_presentation (view, width, height);
3240         else if (view->continuous && view->dual_page)
3241                 ev_view_zoom_for_size_continuous_and_dual_page (view, width, height, vsb_width, hsb_height);
3242         else if (view->continuous)
3243                 ev_view_zoom_for_size_continuous (view, width, height, vsb_width, hsb_height);
3244         else if (view->dual_page)
3245                 ev_view_zoom_for_size_dual_page (view, width, height, vsb_width, hsb_height);
3246         else
3247                 ev_view_zoom_for_size_single_page (view, width, height, vsb_width, hsb_height);
3248 }
3249
3250 /*** Status text messages ***/
3251
3252 const char *
3253 ev_view_get_status (EvView *view)
3254 {
3255         g_return_val_if_fail (EV_IS_VIEW (view), NULL);
3256
3257         return view->status;
3258 }
3259
3260 static void
3261 ev_view_set_status (EvView *view, const char *message)
3262 {
3263         g_return_if_fail (EV_IS_VIEW (view));
3264
3265         if (message != view->status) {
3266                 g_free (view->status);
3267                 view->status = g_strdup (message);
3268                 g_object_notify (G_OBJECT (view), "status");
3269         }
3270 }
3271
3272 static void
3273 update_find_status_message (EvView *view, gboolean this_page)
3274 {
3275         char *message;
3276
3277         if (this_page) {
3278                 int results;
3279
3280                 results = ev_document_find_get_n_results
3281                                 (EV_DOCUMENT_FIND (view->document),
3282                                  view->current_page);
3283                 /* TRANS: Sometimes this could be better translated as
3284                    "%d hit(s) on this page".  Therefore this string
3285                    contains plural cases. */
3286                 message = g_strdup_printf (ngettext ("%d found on this page",
3287                                                      "%d found on this page",
3288                                                      results),
3289                                            results);
3290         } else {
3291                 double percent;
3292
3293                 percent = ev_document_find_get_progress
3294                                 (EV_DOCUMENT_FIND (view->document));
3295                 message = g_strdup_printf (_("%3d%% remaining to search"),
3296                                            (int) ((1.0 - percent) * 100));
3297
3298         }
3299         ev_view_set_find_status (view, message);
3300         g_free (message);
3301 }
3302
3303 const char *
3304 ev_view_get_find_status (EvView *view)
3305 {
3306         g_return_val_if_fail (EV_IS_VIEW (view), NULL);
3307
3308         return view->find_status;
3309 }
3310
3311 static void
3312 ev_view_set_find_status (EvView *view, const char *message)
3313 {
3314         g_return_if_fail (EV_IS_VIEW (view));
3315
3316         g_free (view->find_status);
3317         view->find_status = g_strdup (message);
3318         g_object_notify (G_OBJECT (view), "find-status");
3319 }
3320
3321 /*** Find ***/
3322
3323 static void
3324 jump_to_find_result (EvView *view)
3325 {
3326         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
3327         EvRectangle rect;
3328         GdkRectangle view_rect;
3329         int n_results;
3330         int page = view->current_page;
3331
3332         n_results = ev_document_find_get_n_results (find, page);
3333
3334         if (n_results > 0  && view->find_result < n_results) {
3335                 ev_document_find_get_result
3336                         (find, page, view->find_result, &rect);
3337
3338                 doc_rect_to_view_rect (view, page, &rect, &view_rect);
3339                 ensure_rectangle_is_visible (view, &view_rect);
3340         }
3341 }
3342
3343 /**
3344  * jump_to_find_page
3345  * @view: #EvView instance
3346  * @direction: Direction to look
3347  * @shift: Shift from current page
3348  *
3349  * Jumps to the first page that has occurences of searched word.
3350  * Uses a direction where to look and a shift from current page.
3351  *
3352  */
3353 static void
3354 jump_to_find_page (EvView *view, EvViewFindDirection direction, gint shift)
3355 {
3356         int n_pages, i;
3357
3358         n_pages = ev_page_cache_get_n_pages (view->page_cache);
3359
3360         for (i = 0; i < n_pages; i++) {
3361                 int has_results;
3362                 int page;
3363
3364                 if (direction == EV_VIEW_FIND_NEXT)
3365                         page = view->current_page + i;
3366                 else
3367                         page = view->current_page - i;
3368                 page += shift;
3369
3370                 if (page >= n_pages) {
3371                         page = page - n_pages;
3372                 }
3373                 if (page < 0)
3374                         page = page + n_pages;
3375
3376                 has_results = ev_document_find_page_has_results
3377                                 (EV_DOCUMENT_FIND (view->document), page);
3378                 if (has_results == -1) {
3379                         break;
3380                 } else if (has_results == 1) {
3381                         ev_page_cache_set_current_page (view->page_cache, page);
3382                         break;
3383                 }
3384         }
3385 }
3386
3387 gboolean
3388 ev_view_can_find_next (EvView *view)
3389 {
3390         if (EV_IS_DOCUMENT_FIND (view->document)) {
3391                 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
3392                 int i, n_pages;
3393
3394                 n_pages = ev_page_cache_get_n_pages (view->page_cache);
3395                 for (i = 0; i < n_pages; i++) {
3396                         if (ev_document_find_get_n_results (find, i) > 0) {
3397                                 return TRUE;
3398                         }
3399                 }
3400         }
3401
3402         return FALSE;
3403 }
3404
3405 void
3406 ev_view_find_next (EvView *view)
3407 {
3408         int n_results, n_pages;
3409         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
3410
3411         n_results = ev_document_find_get_n_results (find, view->current_page);
3412
3413         n_pages = ev_page_cache_get_n_pages (view->page_cache);
3414
3415         view->find_result++;
3416
3417         if (view->find_result >= n_results) {
3418
3419                 view->find_result = 0;
3420                 jump_to_find_page (view, EV_VIEW_FIND_NEXT, 1);
3421                 jump_to_find_result (view);
3422         } else {
3423                 jump_to_find_result (view);
3424                 gtk_widget_queue_draw (GTK_WIDGET (view));
3425         }
3426 }
3427
3428 void
3429 ev_view_find_previous (EvView *view)
3430 {
3431         int n_results, n_pages;
3432         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
3433         EvPageCache *page_cache;
3434
3435         page_cache = ev_page_cache_get (view->document);
3436
3437         n_results = ev_document_find_get_n_results (find, view->current_page);
3438
3439         n_pages = ev_page_cache_get_n_pages (page_cache);
3440
3441         view->find_result--;
3442
3443         if (view->find_result < 0) {
3444
3445                 jump_to_find_page (view, EV_VIEW_FIND_PREV, -1);
3446                 view->find_result = ev_document_find_get_n_results (find, view->current_page) - 1;
3447                 jump_to_find_result (view);
3448         } else {
3449                 jump_to_find_result (view);
3450                 gtk_widget_queue_draw (GTK_WIDGET (view));
3451         }
3452 }
3453
3454 void ev_view_search_changed (EvView *view)
3455 {
3456         /* search string has changed, focus on new search result */
3457         view->jump_to_find_result = TRUE;
3458 }
3459
3460 /*** Selections ***/
3461
3462 /* compute_new_selection_rect/text calculates the area currently selected by
3463  * view_rect.  each handles a different mode;
3464  */
3465 static GList *
3466 compute_new_selection_rect (EvView       *view,
3467                             GdkPoint     *start,
3468                             GdkPoint     *stop)
3469 {
3470         GdkRectangle view_rect;
3471         int n_pages, i;
3472         GList *list = NULL;
3473
3474         g_assert (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE);
3475
3476         view_rect.x = MIN (start->x, stop->x);
3477         view_rect.y = MIN (start->y, stop->y);
3478         view_rect.width = MAX (start->x, stop->x) - view_rect.x;
3479         view_rect.width = MAX (start->y, stop->y) - view_rect.y;
3480
3481         n_pages = ev_page_cache_get_n_pages (view->page_cache);
3482
3483         for (i = 0; i < n_pages; i++) {
3484                 GdkRectangle page_area;
3485                 GtkBorder border;
3486
3487                 if (get_page_extents (view, i, &page_area, &border)) {
3488                         GdkRectangle overlap;
3489
3490                         if (gdk_rectangle_intersect (&page_area, &view_rect, &overlap)) {
3491                                 EvViewSelection *selection;
3492
3493                                 selection = g_new0 (EvViewSelection, 1);
3494                                 selection->page = i;
3495                                 view_rect_to_doc_rect (view, &overlap, &page_area,
3496                                                        &(selection->rect));
3497
3498                                 list = g_list_append (list, selection);
3499                         }
3500                 }
3501         }
3502
3503         return list;
3504 }
3505
3506 static gboolean
3507 gdk_rectangle_point_in (GdkRectangle *rectangle,
3508                         GdkPoint     *point)
3509 {
3510         return rectangle->x <= point->x &&
3511                 rectangle->y <= point->y &&
3512                 point->x < rectangle->x + rectangle->width &&
3513                 point->y < rectangle->y + rectangle->height;
3514 }
3515
3516 static GList *
3517 compute_new_selection_text (EvView   *view,
3518                             GdkPoint *start,
3519                             GdkPoint *stop)
3520 {
3521         int n_pages, i, first, last;
3522         GList *list = NULL;
3523         EvViewSelection *selection;
3524         gint width, height;
3525         int start_page, end_page;
3526
3527         g_assert (view->selection_mode == EV_VIEW_SELECTION_TEXT);
3528
3529         n_pages = ev_page_cache_get_n_pages (view->page_cache);
3530
3531         /* First figure out the range of pages the selection
3532          * affects. */
3533         first = n_pages;
3534         last = 0;
3535         if (view->continuous) {
3536                 start_page = 0;
3537                 end_page = n_pages;
3538         } else if (view->dual_page) {
3539                 start_page = view->start_page;
3540                 end_page = view->end_page + 1;
3541         } else {
3542                 start_page = view->current_page;
3543                 end_page = view->current_page + 1;
3544         }
3545
3546         for (i = start_page; i < end_page; i++) {
3547                 GdkRectangle page_area;
3548                 GtkBorder border;
3549
3550                 get_page_extents (view, i, &page_area, &border);
3551                 if (gdk_rectangle_point_in (&page_area, start) ||
3552                     gdk_rectangle_point_in (&page_area, stop)) {
3553                         if (first == n_pages)
3554                                 first = i;
3555                         last = i;
3556                 }
3557
3558         }
3559
3560
3561
3562         /* Now create a list of EvViewSelection's for the affected
3563          * pages.  This could be an empty list, a list of just one
3564          * page or a number of pages.*/
3565         for (i = first; i < last + 1; i++) {
3566                 GdkRectangle page_area;
3567                 GtkBorder border;
3568                 GdkPoint *point;
3569
3570                 ev_page_cache_get_size (view->page_cache, i,
3571                                         view->rotation,
3572                                         1.0, &width, &height);
3573
3574                 selection = g_new0 (EvViewSelection, 1);
3575                 selection->page = i;
3576                 selection->rect.x1 = selection->rect.y1 = 0;
3577                 selection->rect.x2 = width;
3578                 selection->rect.y2 = height;
3579
3580                 get_page_extents (view, i, &page_area, &border);
3581
3582                 if (gdk_rectangle_point_in (&page_area, start))
3583                         point = start;
3584                 else
3585                         point = stop;
3586
3587                 if (i == first)
3588                         view_point_to_doc_point (view, point, &page_area,
3589                                                  &selection->rect.x1,
3590                                                  &selection->rect.y1);
3591
3592                 /* If the selection is contained within just one page,
3593                  * make sure we don't write 'start' into both points
3594                  * in selection->rect. */
3595                 if (first == last)
3596                         point = stop;
3597
3598                 if (i == last)
3599                         view_point_to_doc_point (view, point, &page_area,
3600                                                  &selection->rect.x2,
3601                                                  &selection->rect.y2);
3602
3603                 list = g_list_append (list, selection);
3604         }
3605
3606         return list;
3607 }
3608
3609 /* This function takes the newly calculated list, and figures out which regions
3610  * have changed.  It then queues a redraw approporiately.
3611  */
3612 static void
3613 merge_selection_region (EvView *view,
3614                         GList  *new_list)
3615 {
3616         GList *old_list;
3617         GList *new_list_ptr, *old_list_ptr;
3618
3619         /* Update the selection */
3620         old_list = ev_pixbuf_cache_get_selection_list (view->pixbuf_cache);
3621         g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
3622         view->selection_info.selections = new_list;
3623         ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, new_list);
3624         g_object_notify (G_OBJECT (view), "has-selection");
3625
3626         new_list_ptr = new_list;
3627         old_list_ptr = old_list;
3628
3629         while (new_list_ptr || old_list_ptr) {
3630                 EvViewSelection *old_sel, *new_sel;
3631                 int cur_page;
3632                 GdkRegion *region = NULL;
3633
3634                 new_sel = (new_list_ptr) ? (new_list_ptr->data) : NULL;
3635                 old_sel = (old_list_ptr) ? (old_list_ptr->data) : NULL;
3636
3637                 /* Assume that the lists are in order, and we run through them
3638                  * comparing them, one page at a time.  We come out with the
3639                  * first page we see. */
3640                 if (new_sel && old_sel) {
3641                         if (new_sel->page < old_sel->page) {
3642                                 new_list_ptr = new_list_ptr->next;
3643                                 old_sel = NULL;
3644                         } else if (new_sel->page > old_sel->page) {
3645                                 old_list_ptr = old_list_ptr->next;
3646                                 new_sel = NULL;
3647                         } else {
3648                                 new_list_ptr = new_list_ptr->next;
3649                                 old_list_ptr = old_list_ptr->next;
3650                         }
3651                 } else if (new_sel) {
3652                         new_list_ptr = new_list_ptr->next;
3653                 } else if (old_sel) {
3654                         old_list_ptr = old_list_ptr->next;
3655                 }
3656
3657                 g_assert (new_sel || old_sel);
3658
3659                 /* is the page we're looking at on the screen?*/
3660                 cur_page = new_sel ? new_sel->page : old_sel->page;
3661                 if (cur_page < view->start_page || cur_page > view->end_page)
3662                         continue;
3663
3664                 /* seed the cache with a new page.  We are going to need the new
3665                  * region too. */
3666                 if (new_sel) {
3667                         GdkRegion *tmp_region = NULL;
3668                         ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache,
3669                                                               cur_page,
3670                                                               view->scale,
3671                                                               &tmp_region);
3672                         if (tmp_region) {
3673                                 new_sel->covered_region = gdk_region_copy (tmp_region);
3674                         }
3675                 }
3676
3677                 /* Now we figure out what needs redrawing */
3678                 if (old_sel && new_sel) {
3679                         if (old_sel->covered_region &&
3680                             new_sel->covered_region) {
3681                                 /* We only want to redraw the areas that have
3682                                  * changed, so we xor the old and new regions
3683                                  * and redraw if it's different */
3684                                 region = gdk_region_copy (old_sel->covered_region);
3685                                 gdk_region_xor (region, new_sel->covered_region);
3686                                 if (gdk_region_empty (region)) {
3687                                         gdk_region_destroy (region);
3688                                         region = NULL;
3689                                 }
3690                         } else if (old_sel->covered_region) {
3691                                 region = gdk_region_copy (old_sel->covered_region);
3692                         } else if (new_sel->covered_region) {
3693                                 region = gdk_region_copy (new_sel->covered_region);
3694                         }
3695                 } else if (old_sel && !new_sel) {
3696                         if (old_sel->covered_region && !gdk_region_empty (old_sel->covered_region)) {
3697                                 region = gdk_region_copy (old_sel->covered_region);
3698                         }
3699                 } else if (!old_sel && new_sel) {
3700                         if (new_sel->covered_region && !gdk_region_empty (new_sel->covered_region)) {
3701                                 region = gdk_region_copy (new_sel->covered_region);
3702                         }
3703                 } else {
3704                         g_assert_not_reached ();
3705                 }
3706
3707                 /* Redraw the damaged region! */
3708                 if (region) {
3709                         GdkRectangle page_area;
3710                         GtkBorder border;
3711
3712                         get_page_extents (view, cur_page, &page_area, &border);
3713                         gdk_region_offset (region,
3714                                            page_area.x + border.left - view->scroll_x,
3715                                            page_area.y + border.top - view->scroll_y);
3716                         gdk_window_invalidate_region (GTK_WIDGET (view)->window, region, TRUE);
3717                         gdk_region_destroy (region);
3718                 }
3719         }
3720
3721         /* Free the old list, now that we're done with it. */
3722         g_list_foreach (old_list, (GFunc) selection_free, NULL);
3723 }
3724
3725 static void
3726 compute_selections (EvView   *view,
3727                     GdkPoint *start,
3728                     GdkPoint *stop)
3729 {
3730         GList *list;
3731
3732         if (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE)
3733                 list = compute_new_selection_rect (view, start, stop);
3734         else
3735                 list = compute_new_selection_text (view, start, stop);
3736         merge_selection_region (view, list);
3737 }
3738
3739 /* Free's the selection.  It's up to the caller to queue redraws if needed.
3740  */
3741 static void
3742 selection_free (EvViewSelection *selection)
3743 {
3744         if (selection->covered_region)
3745                 gdk_region_destroy (selection->covered_region);
3746         g_free (selection);
3747 }
3748
3749 static void
3750 clear_selection (EvView *view)
3751 {
3752         g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
3753         view->selection_info.selections = NULL;
3754         view->selection_info.in_selection = FALSE;
3755         g_object_notify (G_OBJECT (view), "has-selection");
3756 }
3757
3758
3759 void
3760 ev_view_select_all (EvView *view)
3761 {
3762         int n_pages, i;
3763
3764         /* Disable selection on rotated pages for the 0.4.0 series */
3765         if (view->rotation != 0)
3766                 return;
3767
3768         clear_selection (view);
3769
3770         n_pages = ev_page_cache_get_n_pages (view->page_cache);
3771         for (i = 0; i < n_pages; i++) {
3772                 int width, height;
3773                 EvViewSelection *selection;
3774
3775                 ev_page_cache_get_size (view->page_cache,
3776                                         i,
3777                                         view->rotation,
3778                                         1.0, &width, &height);
3779
3780                 selection = g_new0 (EvViewSelection, 1);
3781                 selection->page = i;
3782                 selection->rect.x1 = selection->rect.y1 = 0;
3783                 selection->rect.x2 = width;
3784                 selection->rect.y2 = height;
3785
3786                 view->selection_info.selections = g_list_append (view->selection_info.selections, selection);
3787         }
3788
3789         ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, view->selection_info.selections);
3790         g_object_notify (G_OBJECT (view), "has-selection");
3791         gtk_widget_queue_draw (GTK_WIDGET (view));
3792 }
3793
3794 gboolean
3795 ev_view_get_has_selection (EvView *view)
3796 {
3797         return view->selection_info.selections != NULL;
3798 }
3799
3800 static char *
3801 get_selected_text (EvView *ev_view)
3802 {
3803         GString *text;
3804         GList *l;
3805
3806         text = g_string_new (NULL);
3807
3808         ev_document_doc_mutex_lock ();
3809
3810         for (l = ev_view->selection_info.selections; l != NULL; l = l->next) {
3811                 EvViewSelection *selection = (EvViewSelection *)l->data;
3812                 char *tmp;
3813
3814                 tmp = ev_document_get_text (ev_view->document,
3815                                             selection->page,
3816                                             &selection->rect);
3817                 g_string_append (text, tmp);
3818                 g_free (tmp);
3819         }
3820
3821         ev_document_doc_mutex_unlock ();
3822
3823         return g_string_free (text, FALSE);
3824 }
3825
3826 void
3827 ev_view_copy (EvView *ev_view)
3828 {
3829         GtkClipboard *clipboard;
3830         char *text;
3831
3832         if (!ev_document_can_get_text (ev_view->document)) {
3833                 return;
3834         }
3835
3836         text = get_selected_text (ev_view);
3837         clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
3838                                               GDK_SELECTION_CLIPBOARD);
3839         gtk_clipboard_set_text (clipboard, text, -1);
3840         g_free (text);
3841 }
3842
3843 static void
3844 ev_view_primary_get_cb (GtkClipboard     *clipboard,
3845                         GtkSelectionData *selection_data,
3846                         guint             info,
3847                         gpointer          data)
3848 {
3849         EvView *ev_view = EV_VIEW (data);
3850         char *text;
3851
3852         if (!ev_document_can_get_text (ev_view->document)) {
3853                 return;
3854         }
3855
3856         text = get_selected_text (ev_view);
3857         gtk_selection_data_set_text (selection_data, text, -1);
3858         g_free (text);
3859 }
3860
3861 static void
3862 ev_view_primary_clear_cb (GtkClipboard *clipboard,
3863                           gpointer      data)
3864 {
3865         EvView *view = EV_VIEW (data);
3866
3867         clear_selection (view);
3868 }
3869
3870 static void
3871 ev_view_update_primary_selection (EvView *ev_view)
3872 {
3873         GtkClipboard *clipboard;
3874
3875         clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
3876                                               GDK_SELECTION_PRIMARY);
3877
3878         if (ev_view->selection_info.selections) {
3879                 if (!gtk_clipboard_set_with_owner (clipboard,
3880                                                    targets,
3881                                                    G_N_ELEMENTS (targets),
3882                                                    ev_view_primary_get_cb,
3883                                                    ev_view_primary_clear_cb,
3884                                                    G_OBJECT (ev_view)))
3885                         ev_view_primary_clear_cb (clipboard, ev_view);
3886         } else {
3887                 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
3888                         gtk_clipboard_clear (clipboard);
3889         }
3890 }
3891
3892 /*** Cursor operations ***/
3893
3894 static GdkCursor *
3895 ev_view_create_invisible_cursor(void)
3896 {
3897        GdkBitmap *empty;
3898        GdkColor black = { 0, 0, 0, 0 };
3899        static char bits[] = { 0x00 };
3900
3901        empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
3902
3903        return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
3904 }
3905
3906 static void
3907 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
3908 {
3909         GdkCursor *cursor = NULL;
3910         GdkDisplay *display;
3911         GtkWidget *widget;
3912
3913         if (view->cursor == new_cursor) {
3914                 return;
3915         }
3916
3917         widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
3918         display = gtk_widget_get_display (widget);
3919         view->cursor = new_cursor;
3920
3921         switch (new_cursor) {
3922                 case EV_VIEW_CURSOR_NORMAL:
3923                         gdk_window_set_cursor (widget->window, NULL);
3924                         break;
3925                 case EV_VIEW_CURSOR_IBEAM:
3926                         cursor = gdk_cursor_new_for_display (display, GDK_XTERM);
3927                         break;
3928                 case EV_VIEW_CURSOR_LINK:
3929                         cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
3930                         break;
3931                 case EV_VIEW_CURSOR_WAIT:
3932                         cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
3933                         break;
3934                 case EV_VIEW_CURSOR_HIDDEN:
3935                         cursor = ev_view_create_invisible_cursor ();
3936                         break;
3937                 case EV_VIEW_CURSOR_DRAG:
3938                         cursor = gdk_cursor_new_for_display (display, GDK_FLEUR);
3939                         break;
3940         }
3941
3942         if (cursor) {
3943                 gdk_window_set_cursor (widget->window, cursor);
3944                 gdk_cursor_unref (cursor);
3945                 gdk_flush();
3946         }
3947 }
3948
3949 void
3950 ev_view_hide_cursor (EvView *view)
3951 {
3952        ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
3953 }
3954
3955 void
3956 ev_view_show_cursor (EvView *view)
3957 {
3958        ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
3959 }
3960
3961 gboolean
3962 ev_view_next_page (EvView *view)
3963 {
3964         int page;
3965
3966         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
3967
3968         page = ev_page_cache_get_current_page (view->page_cache);
3969
3970         if (view->dual_page && !view->presentation)
3971                 page = page + 2;
3972         else
3973                 page = page + 1;
3974
3975         if (page < ev_page_cache_get_n_pages (view->page_cache)) {
3976                 ev_page_cache_set_current_page (view->page_cache, page);
3977                 return TRUE;
3978         } else if (ev_view_get_dual_page (view) && page == ev_page_cache_get_n_pages (view->page_cache)) {
3979                 ev_page_cache_set_current_page (view->page_cache, page - 1);
3980                 return TRUE;
3981         } else {
3982                 return FALSE;
3983         }
3984 }
3985
3986 gboolean
3987 ev_view_previous_page (EvView *view)
3988 {
3989         int page;
3990
3991         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
3992
3993         page = ev_page_cache_get_current_page (view->page_cache);
3994
3995         if (view->dual_page && !view->presentation)
3996                 page = page - 2;
3997         else
3998                 page = page - 1;
3999
4000         if (page >= 0) {
4001                 ev_page_cache_set_current_page (view->page_cache, page);
4002                 return TRUE;
4003         } else if (ev_view_get_dual_page (view) && page == -1) {
4004                 ev_page_cache_set_current_page (view->page_cache, 0);
4005                 return TRUE;
4006         } else {
4007                 return FALSE;
4008         }
4009 }
4010
4011 /*** Enum description for usage in signal ***/
4012
4013 GType
4014 ev_sizing_mode_get_type (void)
4015 {
4016   static GType etype = 0;
4017   if (etype == 0) {
4018     static const GEnumValue values[] = {
4019       { EV_SIZING_FIT_WIDTH, "EV_SIZING_FIT_WIDTH", "fit-width" },
4020       { EV_SIZING_BEST_FIT, "EV_SIZING_BEST_FIT", "best-fit" },
4021       { EV_SIZING_FREE, "EV_SIZING_FREE", "free" },
4022       { 0, NULL, NULL }
4023     };
4024     etype = g_enum_register_static ("EvSizingMode", values);
4025   }
4026   return etype;
4027 }
4028
4029 GType
4030 ev_scroll_type_get_type (void)
4031 {
4032   static GType etype = 0;
4033   if (etype == 0) {
4034     static const GEnumValue values[] = {
4035       { EV_SCROLL_PAGE_FORWARD, "EV_SCROLL_PAGE_FORWARD", "scroll-page-forward" },
4036       { EV_SCROLL_PAGE_BACKWARD, "EV_SCROLL_PAGE_BACKWARD", "scroll-page-backward" },
4037       { EV_SCROLL_STEP_FORWARD, "EV_SCROLL_STEP_FORWARD", "scroll-step-forward" },
4038       { EV_SCROLL_STEP_FORWARD, "EV_SCROLL_STEP_FORWARD", "scroll-step-forward" },
4039       { EV_SCROLL_STEP_UP, "EV_SCROLL_STEP_UP", "scroll-step-up" },
4040       { EV_SCROLL_STEP_DOWN, "EV_SCROLL_STEP_DOWN", "scroll-step-down" },
4041       { 0, NULL, NULL }
4042     };
4043     etype = g_enum_register_static ("EvScrollType", values);
4044   }
4045   return etype;
4046 }