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 <gtk/gtkalignment.h>
  22 #include <glib/gi18n.h>
  23 #include <gtk/gtkbindings.h>
  24 #include <gtk/gtkselection.h>
  25 #include <gtk/gtkclipboard.h>
  26 #include <gdk/gdkkeysyms.h>
  27 #include <libgnomevfs/gnome-vfs-utils.h>
  28
  29 #include "ev-marshal.h"
  30 #include "ev-view.h"
  31 #include "ev-document-find.h"
  32 #include "ev-document-misc.h"
  33 #include "ev-debug.h"
  34
  35 #define EV_VIEW_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass))
  36 #define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW))
  37 #define EV_VIEW_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass))
  38
  39 enum {
  40         PROP_0,
  41         PROP_STATUS,
  42         PROP_FIND_STATUS
  43 };
  44
  45 enum {
  46   TARGET_STRING,
  47   TARGET_TEXT,
  48   TARGET_COMPOUND_TEXT,
  49   TARGET_UTF8_STRING,
  50   TARGET_TEXT_BUFFER_CONTENTS
  51 };
  52
  53 static const GtkTargetEntry targets[] = {
  54         { "STRING", 0, TARGET_STRING },
  55         { "TEXT",   0, TARGET_TEXT },
  56         { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
  57         { "UTF8_STRING", 0, TARGET_UTF8_STRING },
  58 };
  59
  60 typedef enum {
  61         EV_VIEW_CURSOR_NORMAL,
  62         EV_VIEW_CURSOR_LINK,
  63         EV_VIEW_CURSOR_WAIT,
  64         EV_VIEW_CURSOR_HIDDEN
  65 } EvViewCursor;
  66
  67 #define ZOOM_IN_FACTOR  1.2
  68 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
  69
  70 #define MIN_SCALE 0.05409
  71 #define MAX_SCALE 18.4884
  72
  73 /* FIXME: temporarily setting the epsilon very high until we figure out how to
  74  * constrain the size of the window to a pixel width, instead of to the zoom
  75  * level */
  76 #define ZOOM_EPSILON 1e-2
  77
  78
  79 struct _EvView {
  80         GtkWidget parent_instance;
  81
  82         EvDocument *document;
  83
  84         GdkWindow *bin_window;
  85
  86         char *status;
  87         char *find_status;
  88
  89         int scroll_x;
  90         int scroll_y;
  91
  92         int x_offset;
  93         int y_offset;
  94
  95         gboolean pressed_button;
  96         gboolean has_selection;
  97         GdkPoint selection_start;
  98         GdkRectangle selection;
  99         EvViewCursor cursor;
 100
 101         GtkAdjustment *hadjustment;
 102         GtkAdjustment *vadjustment;
 103
 104         int find_page;
 105         int find_result;
 106         int spacing;
 107
 108         double scale;
 109         EvSizingMode sizing_mode;
 110 };
 111
 112 struct _EvViewClass {
 113         GtkWidgetClass parent_class;
 114
 115         void    (*set_scroll_adjustments) (EvView         *view,
 116                                            GtkAdjustment  *hadjustment,
 117                                            GtkAdjustment  *vadjustment);
 118         void    (*scroll_view)            (EvView         *view,
 119                                            GtkScrollType   scroll,
 120                                            gboolean        horizontal);
 121
 122         /* Should this be notify::page? */
 123         void    (*page_changed)           (EvView         *view);
 124 };
 125
 126 static guint page_changed_signal = 0;
 127
 128 static void ev_view_set_scroll_adjustments (EvView         *view,
 129                                             GtkAdjustment  *hadjustment,
 130                                             GtkAdjustment  *vadjustment);
 131
 132 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
 133
 134 /*** Helper functions ***/
 135
 136 static void
 137 view_update_adjustments (EvView *view)
 138 {
 139         int old_x = view->scroll_x;
 140         int old_y = view->scroll_y;
 141
 142         if (view->hadjustment)
 143                 view->scroll_x = view->hadjustment->value;
 144         else
 145                 view->scroll_x = 0;
 146
 147         if (view->vadjustment)
 148                 view->scroll_y = view->vadjustment->value;
 149         else
 150                 view->scroll_y = 0;
 151
 152         if (GTK_WIDGET_REALIZED (view) &&
 153             (view->scroll_x != old_x || view->scroll_y != old_y)) {
 154                 gdk_window_move (view->bin_window, - view->scroll_x, - view->scroll_y);
 155                 gdk_window_process_updates (view->bin_window, TRUE);
 156         }
 157 }
 158
 159 static void
 160 view_set_adjustment_values (EvView         *view,
 161                             GtkOrientation  orientation)
 162 {
 163         GtkWidget *widget = GTK_WIDGET (view);
 164         GtkAdjustment *adjustment;
 165         gboolean value_changed = FALSE;
 166         int requisition;
 167         int allocation;
 168
 169         if (orientation == GTK_ORIENTATION_HORIZONTAL)  {
 170                 requisition = widget->requisition.width;
 171                 allocation = widget->allocation.width;
 172                 adjustment = view->hadjustment;
 173         } else {
 174                 requisition = widget->requisition.height;
 175                 allocation = widget->allocation.height;
 176                 adjustment = view->vadjustment;
 177         }
 178
 179         if (!adjustment)
 180                 return;
 181
 182         adjustment->page_size = allocation;
 183         adjustment->step_increment = allocation * 0.1;
 184         adjustment->page_increment = allocation * 0.9;
 185         adjustment->lower = 0;
 186         adjustment->upper = MAX (allocation, requisition);
 187
 188         if (adjustment->value > adjustment->upper - adjustment->page_size) {
 189                 adjustment->value = adjustment->upper - adjustment->page_size;
 190                 value_changed = TRUE;
 191         }
 192
 193         gtk_adjustment_changed (adjustment);
 194         if (value_changed)
 195                 gtk_adjustment_value_changed (adjustment);
 196 }
 197
 198 /*** Virtual function implementations ***/
 199
 200 static void
 201 ev_view_finalize (GObject *object)
 202 {
 203         EvView *view = EV_VIEW (object);
 204
 205         LOG ("Finalize");
 206
 207         if (view->document)
 208                 g_object_unref (view->document);
 209
 210         ev_view_set_scroll_adjustments (view, NULL, NULL);
 211
 212         G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
 213 }
 214
 215 static void
 216 ev_view_destroy (GtkObject *object)
 217 {
 218         EvView *view = EV_VIEW (object);
 219
 220         ev_view_set_scroll_adjustments (view, NULL, NULL);
 221
 222         GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
 223 }
 224
 225 static void
 226 view_rect_to_doc_rect (EvView *view, GdkRectangle *view_rect, GdkRectangle *doc_rect)
 227 {
 228         doc_rect->x = (view_rect->x - view->x_offset) / view->scale;
 229         doc_rect->y = (view_rect->y - view->y_offset) / view->scale;
 230         doc_rect->width = view_rect->width / view->scale;
 231         doc_rect->height = view_rect->height / view->scale;
 232 }
 233
 234 static void
 235 doc_rect_to_view_rect (EvView *view, GdkRectangle *doc_rect, GdkRectangle *view_rect)
 236 {
 237         view_rect->x = doc_rect->x * view->scale + view->x_offset;
 238         view_rect->y = doc_rect->y * view->scale + view->y_offset;
 239         view_rect->width = doc_rect->width * view->scale;
 240         view_rect->height = doc_rect->height * view->scale;
 241 }
 242
 243 static void
 244 ev_view_size_request (GtkWidget      *widget,
 245                       GtkRequisition *requisition)
 246 {
 247         EvView *view = EV_VIEW (widget);
 248         GtkBorder border;
 249         gint width, height;
 250
 251         if (! GTK_WIDGET_REALIZED (widget))
 252                 return;
 253
 254         if (! view->document) {
 255                 requisition->width = 1;
 256                 requisition->height = 1;
 257                 return;
 258         }
 259
 260         ev_document_get_page_size (view->document, -1,
 261                                    &width, &height);
 262         ev_document_misc_get_page_border_size (width, height, &border);
 263
 264         switch (view->sizing_mode) {
 265         case EV_SIZING_BEST_FIT:
 266                 requisition->width = MIN_SCALE * ((float) width) / view->scale;
 267                 requisition->height = MIN_SCALE * ((float) height) / view->scale;
 268                 break;
 269         case EV_SIZING_FIT_WIDTH:
 270                 requisition->width = MIN_SCALE * ((float) width) / view->scale;
 271                 requisition->height = height + border.top + border.bottom;
 272                 requisition->height += view->spacing * 2;
 273                 break;
 274         case EV_SIZING_FREE:
 275                 requisition->width = width + border.left + border.right;
 276                 requisition->height = height + border.top + border.bottom;
 277                 requisition->width += view->spacing * 2;
 278                 requisition->height += view->spacing * 2;
 279                 break;
 280         }
 281 }
 282
 283 static void
 284 ev_view_size_allocate (GtkWidget      *widget,
 285                        GtkAllocation  *allocation)
 286 {
 287         EvView *view = EV_VIEW (widget);
 288         gint target_width, target_height;
 289         GtkBorder border;
 290         gint width, height;
 291
 292         GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
 293
 294         view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
 295         view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
 296
 297         if (view->document) {
 298                 ev_document_get_page_size (view->document, -1,
 299                                            &width, &height);
 300                 ev_document_misc_get_page_border_size (width, height, &border);
 301                 view->x_offset = view->spacing;
 302                 view->y_offset = view->spacing;
 303                 target_width = width + border.left + border.right + view->spacing * 2;
 304                 target_height = height + border.top + border.bottom + view->spacing * 2;
 305                 view->x_offset += MAX (0, (widget->allocation.width - target_width) / 2);
 306                 view->y_offset += MAX (0, (widget->allocation.height - target_height) / 2);
 307         }
 308
 309         if (GTK_WIDGET_REALIZED (widget)) {
 310                 gdk_window_resize (view->bin_window,
 311                                    MAX (widget->allocation.width, widget->requisition.width),
 312                                    MAX (widget->allocation.height, widget->requisition.height));
 313         }
 314 }
 315
 316 static void
 317 ev_view_realize (GtkWidget *widget)
 318 {
 319         EvView *view = EV_VIEW (widget);
 320         GdkWindowAttr attributes;
 321
 322         GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 323
 324
 325         attributes.window_type = GDK_WINDOW_CHILD;
 326         attributes.wclass = GDK_INPUT_OUTPUT;
 327         attributes.visual = gtk_widget_get_visual (widget);
 328         attributes.colormap = gtk_widget_get_colormap (widget);
 329
 330         attributes.x = widget->allocation.x;
 331         attributes.y = widget->allocation.y;
 332         attributes.width = widget->allocation.width;
 333         attributes.height = widget->allocation.height;
 334         attributes.event_mask = 0;
 335
 336         widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
 337                                          &attributes,
 338                                          GDK_WA_X | GDK_WA_Y |
 339                                          GDK_WA_COLORMAP |
 340                                          GDK_WA_VISUAL);
 341         gdk_window_set_user_data (widget->window, widget);
 342         widget->style = gtk_style_attach (widget->style, widget->window);
 343         gdk_window_set_background (widget->window, &widget->style->mid[widget->state]);
 344
 345         attributes.x = 0;
 346         attributes.y = 0;
 347         attributes.width = MAX (widget->allocation.width, widget->requisition.width);
 348         attributes.height = MAX (widget->allocation.height, widget->requisition.height);
 349         attributes.event_mask = GDK_EXPOSURE_MASK |
 350                                 GDK_BUTTON_PRESS_MASK |
 351                                 GDK_BUTTON_RELEASE_MASK |
 352                                 GDK_SCROLL_MASK |
 353                                 GDK_KEY_PRESS_MASK |
 354                                 GDK_POINTER_MOTION_MASK |
 355                                 GDK_LEAVE_NOTIFY_MASK;
 356
 357         view->bin_window = gdk_window_new (widget->window,
 358                                            &attributes,
 359                                            GDK_WA_X | GDK_WA_Y |
 360                                            GDK_WA_COLORMAP |
 361                                            GDK_WA_VISUAL);
 362         gdk_window_set_user_data (view->bin_window, widget);
 363         gdk_window_show (view->bin_window);
 364
 365         widget->style = gtk_style_attach (widget->style, view->bin_window);
 366         gdk_window_set_background (view->bin_window, &widget->style->mid[widget->state]);
 367
 368         if (view->document) {
 369                 ev_document_set_target (view->document, view->bin_window);
 370
 371                 /* We can't get page size without a target, so we have to
 372                  * queue a size request at realization. Could be fixed
 373                  * with EvDocument changes to allow setting a GdkScreen
 374                  * without setting a target.
 375                  */
 376                 gtk_widget_queue_resize (widget);
 377         }
 378 }
 379
 380 static void
 381 ev_view_unrealize (GtkWidget *widget)
 382 {
 383         EvView *view = EV_VIEW (widget);
 384
 385         if (view->document)
 386                 ev_document_set_target (view->document, NULL);
 387
 388         gdk_window_set_user_data (view->bin_window, NULL);
 389         gdk_window_destroy (view->bin_window);
 390         view->bin_window = NULL;
 391
 392         GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
 393 }
 394
 395 static guint32
 396 ev_gdk_color_to_rgb (const GdkColor *color)
 397 {
 398   guint32 result;
 399   result = (0xff0000 | (color->red & 0xff00));
 400   result <<= 8;
 401   result |= ((color->green & 0xff00) | (color->blue >> 8));
 402   return result;
 403 }
 404
 405 static void
 406 draw_rubberband (GtkWidget *widget, GdkWindow *window,
 407                  const GdkRectangle *rect, guchar alpha)
 408 {
 409         GdkGC *gc;
 410         GdkPixbuf *pixbuf;
 411         GdkColor *fill_color_gdk;
 412         guint fill_color;
 413
 414         fill_color_gdk = gdk_color_copy (&GTK_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
 415         fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
 416
 417         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
 418                                  rect->width, rect->height);
 419         gdk_pixbuf_fill (pixbuf, fill_color);
 420
 421         gdk_draw_pixbuf (window, NULL, pixbuf,
 422                          0, 0,
 423                          rect->x,rect->y,
 424                          rect->width, rect->height,
 425                          GDK_RGB_DITHER_NONE,
 426                          0, 0);
 427
 428         g_object_unref (pixbuf);
 429
 430         gc = gdk_gc_new (window);
 431         gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
 432         gdk_draw_rectangle (window, gc, FALSE,
 433                             rect->x, rect->y,
 434                             rect->width - 1,
 435                             rect->height - 1);
 436         g_object_unref (gc);
 437
 438         gdk_color_free (fill_color_gdk);
 439 }
 440
 441 static void
 442 highlight_find_results (EvView *view)
 443 {
 444         EvDocumentFind *find;
 445         int i, results;
 446
 447         g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document));
 448
 449         find = EV_DOCUMENT_FIND (view->document);
 450
 451         results = ev_document_find_get_n_results (find);
 452
 453         for (i = 0; i < results; i++) {
 454                 GdkRectangle rectangle;
 455                 guchar alpha;
 456
 457                 alpha = (i == view->find_result) ? 0x90 : 0x20;
 458                 ev_document_find_get_result (find, i, &rectangle);
 459                 draw_rubberband (GTK_WIDGET (view), view->bin_window,
 460                                  &rectangle, alpha);
 461         }
 462 }
 463
 464
 465 static void
 466 expose_bin_window (GtkWidget      *widget,
 467                    GdkEventExpose *event)
 468 {
 469         EvView *view = EV_VIEW (widget);
 470         GtkBorder border;
 471         gint width, height;
 472         GdkRectangle area;
 473
 474         if (view->document == NULL)
 475                 return;
 476
 477         ev_document_get_page_size (view->document, -1,
 478                                    &width, &height);
 479         ev_document_misc_get_page_border_size (width, height, &border);
 480
 481         /* Paint the frame */
 482         area.x = view->x_offset;
 483         area.y = view->y_offset;
 484         area.width = width + border.left + border.right;
 485         area.height = height + border.top + border.bottom;
 486         ev_document_misc_paint_one_page (view->bin_window, widget, &area, &border);
 487
 488         /* Render the document itself */
 489         ev_document_set_page_offset (view->document,
 490                                      view->x_offset + border.left,
 491                                      view->y_offset + border.top);
 492
 493         LOG ("Render area %d %d %d %d", event->area.x, event->area.y,
 494              event->area.width, event->area.height);
 495
 496         ev_document_render (view->document,
 497                             event->area.x, event->area.y,
 498                             event->area.width, event->area.height);
 499
 500         if (EV_IS_DOCUMENT_FIND (view->document)) {
 501                 highlight_find_results (view);
 502         }
 503
 504         if (view->has_selection) {
 505                 GdkRectangle rubberband;
 506
 507                 doc_rect_to_view_rect (view, &view->selection, &rubberband);
 508                 if (rubberband.width > 0 && rubberband.height > 0) {
 509                         draw_rubberband (widget, view->bin_window,
 510                                          &rubberband, 0x40);
 511                 }
 512         }
 513 }
 514
 515 static gboolean
 516 ev_view_expose_event (GtkWidget      *widget,
 517                       GdkEventExpose *event)
 518 {
 519         EvView *view = EV_VIEW (widget);
 520
 521         if (event->window == view->bin_window)
 522                 expose_bin_window (widget, event);
 523         else
 524                 return GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event (widget, event);
 525
 526         return FALSE;
 527 }
 528
 529 void
 530 ev_view_select_all (EvView *ev_view)
 531 {
 532         GtkWidget *widget = GTK_WIDGET (ev_view);
 533         GdkRectangle selection;
 534         int width, height;
 535         GtkBorder border;
 536
 537         g_return_if_fail (EV_IS_VIEW (ev_view));
 538
 539         ev_document_get_page_size (ev_view->document, -1, &width, &height);
 540         ev_document_misc_get_page_border_size (width, height, &border);
 541
 542         ev_view->has_selection = TRUE;
 543         selection.x = ev_view->x_offset + border.left;
 544         selection.y = ev_view->y_offset + border.top;
 545         selection.width = width;
 546         selection.height = height;
 547         view_rect_to_doc_rect (ev_view, &selection, &ev_view->selection);
 548
 549         gtk_widget_queue_draw (widget);
 550 }
 551
 552 void
 553 ev_view_copy (EvView *ev_view)
 554 {
 555         GtkClipboard *clipboard;
 556         GdkRectangle selection;
 557         char *text;
 558
 559         doc_rect_to_view_rect (ev_view, &ev_view->selection, &selection);
 560         text = ev_document_get_text (ev_view->document, &selection);
 561         clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
 562                                               GDK_SELECTION_CLIPBOARD);
 563         gtk_clipboard_set_text (clipboard, text, -1);
 564         g_free (text);
 565 }
 566
 567 static void
 568 ev_view_primary_get_cb (GtkClipboard     *clipboard,
 569                         GtkSelectionData *selection_data,
 570                         guint             info,
 571                         gpointer          data)
 572 {
 573         EvView *ev_view = EV_VIEW (data);
 574         GdkRectangle selection;
 575         char *text;
 576
 577         doc_rect_to_view_rect (ev_view, &ev_view->selection, &selection);
 578         text = ev_document_get_text (ev_view->document, &selection);
 579         gtk_selection_data_set_text (selection_data, text, -1);
 580 }
 581
 582 static void
 583 ev_view_primary_clear_cb (GtkClipboard *clipboard,
 584                           gpointer      data)
 585 {
 586         EvView *ev_view = EV_VIEW (data);
 587
 588         ev_view->has_selection = FALSE;
 589 }
 590
 591 static void
 592 ev_view_update_primary_selection (EvView *ev_view)
 593 {
 594         GtkClipboard *clipboard;
 595
 596         clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
 597                                               GDK_SELECTION_PRIMARY);
 598
 599         if (ev_view->has_selection) {
 600                 if (!gtk_clipboard_set_with_owner (clipboard,
 601                                                    targets,
 602                                                    G_N_ELEMENTS (targets),
 603                                                    ev_view_primary_get_cb,
 604                                                    ev_view_primary_clear_cb,
 605                                                    G_OBJECT (ev_view)))
 606                         ev_view_primary_clear_cb (clipboard, ev_view);
 607         } else {
 608                 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
 609                         gtk_clipboard_clear (clipboard);
 610         }
 611 }
 612
 613 static gboolean
 614 ev_view_button_press_event (GtkWidget      *widget,
 615                             GdkEventButton *event)
 616 {
 617         EvView *view = EV_VIEW (widget);
 618
 619         if (!GTK_WIDGET_HAS_FOCUS (widget)) {
 620                 gtk_widget_grab_focus (widget);
 621         }
 622
 623         view->pressed_button = event->button;
 624
 625         switch (event->button) {
 626                 case 1:
 627                         if (view->has_selection) {
 628                                 view->has_selection = FALSE;
 629                                 gtk_widget_queue_draw (widget);
 630                         }
 631
 632                         view->selection_start.x = event->x;
 633                         view->selection_start.y = event->y;
 634                         break;
 635         }
 636
 637         return TRUE;
 638 }
 639
 640 static char *
 641 status_message_from_link (EvLink *link)
 642 {
 643         EvLinkType type;
 644         char *msg;
 645         int page;
 646
 647         type = ev_link_get_link_type (link);
 648
 649         switch (type) {
 650                 case EV_LINK_TYPE_TITLE:
 651                         msg = g_strdup (ev_link_get_title (link));
 652                         break;
 653                 case EV_LINK_TYPE_PAGE:
 654                         page = ev_link_get_page (link);
 655                         msg = g_strdup_printf (_("Go to page %d"), page);
 656                         break;
 657                 case EV_LINK_TYPE_EXTERNAL_URI:
 658                         msg = g_strdup (ev_link_get_uri (link));
 659                         break;
 660                 default:
 661                         msg = NULL;
 662         }
 663
 664         return msg;
 665 }
 666
 667 static void
 668 ev_view_set_status (EvView *view, const char *message)
 669 {
 670         g_return_if_fail (EV_IS_VIEW (view));
 671
 672         if (message != view->status) {
 673                 g_free (view->status);
 674                 view->status = g_strdup (message);
 675                 g_object_notify (G_OBJECT (view), "status");
 676         }
 677 }
 678
 679 static void
 680 ev_view_set_find_status (EvView *view, const char *message)
 681 {
 682         g_return_if_fail (EV_IS_VIEW (view));
 683
 684         g_free (view->find_status);
 685         view->find_status = g_strdup (message);
 686         g_object_notify (G_OBJECT (view), "find-status");
 687 }
 688
 689 static GdkCursor *
 690 ev_view_create_invisible_cursor(void)
 691 {
 692        GdkBitmap *empty;
 693        GdkColor black = { 0, 0, 0, 0 };
 694        static unsigned char bits[] = { 0x00 };
 695
 696        empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
 697
 698        return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
 699 }
 700
 701 static void
 702 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
 703 {
 704         GdkCursor *cursor = NULL;
 705         GdkDisplay *display;
 706         GtkWidget *widget;
 707
 708         if (view->cursor == new_cursor) {
 709                 return;
 710         }
 711
 712         widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
 713         display = gtk_widget_get_display (widget);
 714         view->cursor = new_cursor;
 715
 716         switch (new_cursor) {
 717                 case EV_VIEW_CURSOR_NORMAL:
 718                         gdk_window_set_cursor (widget->window, NULL);
 719                         break;
 720                 case EV_VIEW_CURSOR_LINK:
 721                         cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
 722                         break;
 723                 case EV_VIEW_CURSOR_WAIT:
 724                         cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
 725                         break;
 726                 case EV_VIEW_CURSOR_HIDDEN:
 727                         cursor = ev_view_create_invisible_cursor ();
 728                         break;
 729
 730         }
 731
 732         if (cursor) {
 733                 gdk_window_set_cursor (widget->window, cursor);
 734                 gdk_cursor_unref (cursor);
 735                 gdk_flush();
 736         }
 737 }
 738
 739 static gboolean
 740 ev_view_motion_notify_event (GtkWidget      *widget,
 741                              GdkEventMotion *event)
 742 {
 743         EvView *view = EV_VIEW (widget);
 744
 745         if (view->pressed_button > 0) {
 746                 GdkRectangle selection;
 747
 748                 view->has_selection = TRUE;
 749                 selection.x = MIN (view->selection_start.x, event->x);
 750                 selection.y = MIN (view->selection_start.y, event->y);
 751                 selection.width = ABS (view->selection_start.x - event->x) + 1;
 752                 selection.height = ABS (view->selection_start.y - event->y) + 1;
 753                 view_rect_to_doc_rect (view, &selection, &view->selection);
 754
 755                 gtk_widget_queue_draw (widget);
 756         } else if (view->document) {
 757                 EvLink *link;
 758
 759                 link = ev_document_get_link (view->document, event->x, event->y);
 760                 if (link) {
 761                         char *msg;
 762
 763                         msg = status_message_from_link (link);
 764                         ev_view_set_status (view, msg);
 765                         ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
 766                         g_free (msg);
 767
 768                         g_object_unref (link);
 769                 } else {
 770                         ev_view_set_status (view, NULL);
 771                         if (view->cursor == EV_VIEW_CURSOR_LINK) {
 772                                 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
 773                         }
 774                 }
 775         }
 776
 777         return TRUE;
 778 }
 779
 780 static gboolean
 781 ev_view_button_release_event (GtkWidget      *widget,
 782                               GdkEventButton *event)
 783 {
 784         EvView *view = EV_VIEW (widget);
 785
 786         view->pressed_button = -1;
 787
 788         if (view->has_selection) {
 789                 ev_view_update_primary_selection (view);
 790         } else if (view->document) {
 791                 EvLink *link;
 792
 793                 link = ev_document_get_link (view->document,
 794                                              event->x,
 795                                              event->y);
 796                 if (link) {
 797                         ev_view_go_to_link (view, link);
 798                         g_object_unref (link);
 799                 }
 800         }
 801
 802         return FALSE;
 803 }
 804
 805 static void
 806 on_adjustment_value_changed (GtkAdjustment  *adjustment,
 807                              EvView *view)
 808 {
 809         view_update_adjustments (view);
 810 }
 811
 812 static void
 813 set_scroll_adjustment (EvView *view,
 814                        GtkOrientation  orientation,
 815                        GtkAdjustment  *adjustment)
 816 {
 817         GtkAdjustment **to_set;
 818
 819         if (orientation == GTK_ORIENTATION_HORIZONTAL)
 820                 to_set = &view->hadjustment;
 821         else
 822                 to_set = &view->vadjustment;
 823
 824         if (*to_set != adjustment) {
 825                 if (*to_set) {
 826                         g_signal_handlers_disconnect_by_func (*to_set,
 827                                                               (gpointer) on_adjustment_value_changed,
 828                                                               view);
 829                         g_object_unref (*to_set);
 830                 }
 831
 832                 *to_set = adjustment;
 833                 view_set_adjustment_values (view, orientation);
 834
 835                 if (*to_set) {
 836                         g_object_ref (*to_set);
 837                         g_signal_connect (*to_set, "value_changed",
 838                                           G_CALLBACK (on_adjustment_value_changed), view);
 839                 }
 840         }
 841 }
 842
 843 static void
 844 ev_view_set_scroll_adjustments (EvView *view,
 845                                 GtkAdjustment  *hadjustment,
 846                                 GtkAdjustment  *vadjustment)
 847 {
 848         set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
 849         set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
 850
 851         view_update_adjustments (view);
 852 }
 853
 854 static void
 855 add_scroll_binding (GtkBindingSet  *binding_set,
 856                     guint           keyval,
 857                     GtkScrollType   scroll,
 858                     gboolean        horizontal)
 859 {
 860   guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
 861
 862   gtk_binding_entry_add_signal (binding_set, keyval, 0,
 863                                 "scroll_view", 2,
 864                                 GTK_TYPE_SCROLL_TYPE, scroll,
 865                                 G_TYPE_BOOLEAN, horizontal);
 866   gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
 867                                 "scroll_view", 2,
 868                                 GTK_TYPE_SCROLL_TYPE, scroll,
 869                                 G_TYPE_BOOLEAN, horizontal);
 870 }
 871
 872 static void
 873 ev_view_scroll_view (EvView *view,
 874                      GtkScrollType scroll,
 875                      gboolean horizontal)
 876 {
 877         if (scroll == GTK_SCROLL_PAGE_BACKWARD) {
 878                 ev_view_set_page (view, ev_view_get_page (view) - 1);
 879         } else if (scroll == GTK_SCROLL_PAGE_FORWARD) {
 880                 ev_view_set_page (view, ev_view_get_page (view) + 1);
 881         } else {
 882                 GtkAdjustment *adjustment;
 883                 double value;
 884
 885                 if (horizontal) {
 886                         adjustment = view->hadjustment;
 887                 } else {
 888                         adjustment = view->vadjustment;
 889                 }
 890
 891                 value = adjustment->value;
 892
 893                 switch (scroll) {
 894                         case GTK_SCROLL_STEP_BACKWARD:
 895                                 value -= adjustment->step_increment;
 896                                 break;
 897                         case GTK_SCROLL_STEP_FORWARD:
 898                                 value += adjustment->step_increment;
 899                                 break;
 900                         default:
 901                                 break;
 902                 }
 903
 904                 value = CLAMP (value, adjustment->lower,
 905                                adjustment->upper - adjustment->page_size);
 906
 907                 gtk_adjustment_set_value (adjustment, value);
 908         }
 909 }
 910
 911 static void
 912 ev_view_set_property (GObject *object,
 913                       guint prop_id,
 914                       const GValue *value,
 915                       GParamSpec *pspec)
 916 {
 917         switch (prop_id)
 918         {
 919                 /* Read only */
 920                 case PROP_STATUS:
 921                 case PROP_FIND_STATUS:
 922                         break;
 923         }
 924 }
 925
 926 static void
 927 ev_view_get_property (GObject *object,
 928                       guint prop_id,
 929                       GValue *value,
 930                       GParamSpec *pspec)
 931 {
 932         EvView *view = EV_VIEW (object);
 933
 934         switch (prop_id)
 935         {
 936                 case PROP_STATUS:
 937                         g_value_set_string (value, view->status);
 938                         break;
 939                 case PROP_FIND_STATUS:
 940                         g_value_set_string (value, view->status);
 941                         break;
 942         }
 943 }
 944
 945 static void
 946 ev_view_class_init (EvViewClass *class)
 947 {
 948         GObjectClass *object_class = G_OBJECT_CLASS (class);
 949         GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
 950         GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
 951         GtkBindingSet *binding_set;
 952
 953         object_class->finalize = ev_view_finalize;
 954         object_class->set_property = ev_view_set_property;
 955         object_class->get_property = ev_view_get_property;
 956
 957         widget_class->expose_event = ev_view_expose_event;
 958         widget_class->button_press_event = ev_view_button_press_event;
 959         widget_class->motion_notify_event = ev_view_motion_notify_event;
 960         widget_class->button_release_event = ev_view_button_release_event;
 961         widget_class->size_request = ev_view_size_request;
 962         widget_class->size_allocate = ev_view_size_allocate;
 963         widget_class->realize = ev_view_realize;
 964         widget_class->unrealize = ev_view_unrealize;
 965         gtk_object_class->destroy = ev_view_destroy;
 966
 967         class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
 968         class->scroll_view = ev_view_scroll_view;
 969
 970         widget_class->set_scroll_adjustments_signal =  g_signal_new ("set-scroll-adjustments",
 971                                                                      G_OBJECT_CLASS_TYPE (object_class),
 972                                                                      G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 973                                                                      G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
 974                                                                      NULL, NULL,
 975                                                                      ev_marshal_VOID__OBJECT_OBJECT,
 976                                                                      G_TYPE_NONE, 2,
 977                                                                      GTK_TYPE_ADJUSTMENT,
 978                                                                      GTK_TYPE_ADJUSTMENT);
 979         page_changed_signal = g_signal_new ("page-changed",
 980                                             G_OBJECT_CLASS_TYPE (object_class),
 981                                             G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 982                                             G_STRUCT_OFFSET (EvViewClass, page_changed),
 983                                             NULL, NULL,
 984                                             ev_marshal_VOID__NONE,
 985                                             G_TYPE_NONE, 0);
 986
 987         g_signal_new ("scroll_view",
 988                       G_TYPE_FROM_CLASS (object_class),
 989                       G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 990                       G_STRUCT_OFFSET (EvViewClass, scroll_view),
 991                       NULL, NULL,
 992                       ev_marshal_VOID__ENUM_BOOLEAN,
 993                       G_TYPE_NONE, 2,
 994                       GTK_TYPE_SCROLL_TYPE,
 995                       G_TYPE_BOOLEAN);
 996
 997         g_object_class_install_property (object_class,
 998                                          PROP_STATUS,
 999                                          g_param_spec_string ("status",
1000                                                               "Status Message",
1001                                                               "The status message",
1002                                                               NULL,
1003                                                               G_PARAM_READABLE));
1004
1005         g_object_class_install_property (object_class,
1006                                          PROP_STATUS,
1007                                          g_param_spec_string ("find-status",
1008                                                               "Find Status Message",
1009                                                               "The find status message",
1010                                                               NULL,
1011                                                               G_PARAM_READABLE));
1012
1013         binding_set = gtk_binding_set_by_class (class);
1014
1015         add_scroll_binding (binding_set, GDK_Left,  GTK_SCROLL_STEP_BACKWARD, TRUE);
1016         add_scroll_binding (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD,  TRUE);
1017         add_scroll_binding (binding_set, GDK_Up,    GTK_SCROLL_STEP_BACKWARD, FALSE);
1018         add_scroll_binding (binding_set, GDK_Down,  GTK_SCROLL_STEP_FORWARD,  FALSE);
1019
1020         add_scroll_binding (binding_set, GDK_Page_Up,   GTK_SCROLL_PAGE_BACKWARD, FALSE);
1021         add_scroll_binding (binding_set, GDK_Page_Down, GTK_SCROLL_PAGE_FORWARD,  FALSE);
1022 }
1023
1024 static void
1025 ev_view_init (EvView *view)
1026 {
1027         GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
1028
1029         view->spacing = 10;
1030         view->scale = 1.0;
1031         view->pressed_button = -1;
1032         view->cursor = EV_VIEW_CURSOR_NORMAL;
1033         view->sizing_mode = EV_SIZING_BEST_FIT;
1034 }
1035
1036 static void
1037 update_find_status_message (EvView *view)
1038 {
1039         char *message;
1040
1041         if (ev_document_get_page (view->document) == view->find_page) {
1042                 int results;
1043
1044                 results = ev_document_find_get_n_results
1045                                 (EV_DOCUMENT_FIND (view->document));
1046
1047                 /* TRANS: Sometimes this could be better translated as
1048                    "%d hit(s) on this page".  Therefore this string
1049                    contains plural cases. */
1050                 message = g_strdup_printf (ngettext ("%d found on this page",
1051                                                      "%d found on this page",
1052                                                      results),
1053                                            results);
1054         } else {
1055                 double percent;
1056
1057                 percent = ev_document_find_get_progress
1058                                 (EV_DOCUMENT_FIND (view->document));
1059
1060                 if (percent >= (1.0 - 1e-10)) {
1061                         message = g_strdup (_("Not found"));
1062                 } else {
1063                         message = g_strdup_printf (_("%3d%% remaining to search"),
1064                                                    (int) ((1.0 - percent) * 100));
1065                 }
1066
1067         }
1068
1069         ev_view_set_find_status (view, message);
1070         g_free (message);
1071 }
1072
1073 static void
1074 set_document_page (EvView *view, int new_page)
1075 {
1076         int page;
1077         int pages;
1078
1079         pages = ev_document_get_n_pages (view->document);
1080         page = CLAMP (new_page, 1, pages);
1081
1082         if (view->document) {
1083                 int old_page = ev_document_get_page (view->document);
1084                 int old_width, old_height;
1085
1086                 ev_document_get_page_size (view->document,
1087                                            -1,
1088                                            &old_width, &old_height);
1089
1090                 if (old_page != page) {
1091                         if (view->cursor != EV_VIEW_CURSOR_HIDDEN) {
1092                                 ev_view_set_cursor (view, EV_VIEW_CURSOR_WAIT);
1093                         }
1094                         ev_document_set_page (view->document, page);
1095                 }
1096
1097                 if (old_page != ev_document_get_page (view->document)) {
1098                         int width, height;
1099
1100                         g_signal_emit (view, page_changed_signal, 0);
1101
1102                         view->has_selection = FALSE;
1103                         ev_document_get_page_size (view->document,
1104                                                    -1,
1105                                                    &width, &height);
1106                         if (width != old_width || height != old_height)
1107                                 gtk_widget_queue_resize (GTK_WIDGET (view));
1108
1109                         gtk_adjustment_set_value (view->vadjustment,
1110                                                   view->vadjustment->lower);
1111                 }
1112
1113                 if (EV_IS_DOCUMENT_FIND (view->document)) {
1114                         view->find_page = page;
1115                         view->find_result = 0;
1116                         update_find_status_message (view);
1117                 }
1118         }
1119 }
1120
1121 #define MARGIN 5
1122
1123 static void
1124 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
1125 {
1126         GtkWidget *widget = GTK_WIDGET (view);
1127         GtkAdjustment *adjustment;
1128         int value;
1129
1130         adjustment = view->vadjustment;
1131
1132         if (rect->y < adjustment->value) {
1133                 value = MAX (adjustment->lower, rect->y - MARGIN);
1134                 gtk_adjustment_set_value (view->vadjustment, value);
1135         } else if (rect->y + rect->height >
1136                    adjustment->value + widget->allocation.height) {
1137                 value = MIN (adjustment->upper, rect->y + rect->height -
1138                              widget->allocation.height + MARGIN);
1139                 gtk_adjustment_set_value (view->vadjustment, value);
1140         }
1141
1142         adjustment = view->hadjustment;
1143
1144         if (rect->x < adjustment->value) {
1145                 value = MAX (adjustment->lower, rect->x - MARGIN);
1146                 gtk_adjustment_set_value (view->hadjustment, value);
1147         } else if (rect->x + rect->height >
1148                    adjustment->value + widget->allocation.width) {
1149                 value = MIN (adjustment->upper, rect->x + rect->width -
1150                              widget->allocation.width + MARGIN);
1151                 gtk_adjustment_set_value (view->hadjustment, value);
1152         }
1153 }
1154
1155 static void
1156 jump_to_find_result (EvView *view)
1157 {
1158         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1159         GdkRectangle rect;
1160         int n_results;
1161
1162         n_results = ev_document_find_get_n_results (find);
1163
1164         if (n_results > view->find_result) {
1165                 ev_document_find_get_result
1166                         (find, view->find_result, &rect);
1167                 ensure_rectangle_is_visible (view, &rect);
1168         }
1169 }
1170
1171 static void
1172 jump_to_find_page (EvView *view)
1173 {
1174         int n_pages, i;
1175
1176         n_pages = ev_document_get_n_pages (view->document);
1177
1178         for (i = 0; i <= n_pages; i++) {
1179                 int has_results;
1180                 int page;
1181
1182                 page = i + view->find_page;
1183                 if (page > n_pages) {
1184                         page = page - n_pages;
1185                 }
1186
1187                 has_results = ev_document_find_page_has_results
1188                                 (EV_DOCUMENT_FIND (view->document), page);
1189                 if (has_results == -1) {
1190                         view->find_page = page;
1191                         break;
1192                 } else if (has_results == 1) {
1193                         set_document_page (view, page);
1194                         jump_to_find_result (view);
1195                         break;
1196                 }
1197         }
1198 }
1199
1200 static void
1201 find_changed_cb (EvDocument *document, int page, EvView *view)
1202 {
1203         jump_to_find_page (view);
1204         jump_to_find_result (view);
1205         update_find_status_message (view);
1206
1207         if (ev_document_get_page (document) == page) {
1208                 gtk_widget_queue_draw (GTK_WIDGET (view));
1209         }
1210 }
1211
1212 static void
1213 document_changed_callback (EvDocument *document,
1214                            EvView     *view)
1215 {
1216         gtk_widget_queue_draw (GTK_WIDGET (view));
1217
1218         if (view->cursor != EV_VIEW_CURSOR_HIDDEN) {
1219                 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1220         }
1221 }
1222
1223 /*** Public API ***/
1224
1225 GtkWidget*
1226 ev_view_new (void)
1227 {
1228         return g_object_new (EV_TYPE_VIEW, NULL);
1229 }
1230
1231 void
1232 ev_view_set_document (EvView     *view,
1233                       EvDocument *document)
1234 {
1235         g_return_if_fail (EV_IS_VIEW (view));
1236
1237         if (document != view->document) {
1238                 if (view->document) {
1239                         g_signal_handlers_disconnect_by_func (view->document,
1240                                                               find_changed_cb,
1241                                                               view);
1242                         g_object_unref (view->document);
1243                 }
1244
1245                 view->document = document;
1246                 view->find_page = 1;
1247                 view->find_result = 0;
1248
1249                 if (view->document) {
1250                         g_object_ref (view->document);
1251                         if (EV_IS_DOCUMENT_FIND (view->document)) {
1252                                 g_signal_connect (view->document,
1253                                                   "find_changed",
1254                                                   G_CALLBACK (find_changed_cb),
1255                                                   view);
1256                         }
1257                         g_signal_connect (view->document,
1258                                           "changed",
1259                                           G_CALLBACK (document_changed_callback),
1260                                           view);
1261                 }
1262
1263                 if (GTK_WIDGET_REALIZED (view))
1264                         ev_document_set_target (view->document, view->bin_window);
1265
1266                 gtk_widget_queue_resize (GTK_WIDGET (view));
1267
1268                 g_signal_emit (view, page_changed_signal, 0);
1269         }
1270 }
1271
1272 void
1273 ev_view_set_mode (EvView       *view,
1274                   EvSizingMode  sizing_mode)
1275 {
1276         if (view->sizing_mode == sizing_mode)
1277                 return;
1278
1279         view->sizing_mode = sizing_mode;
1280         gtk_widget_queue_resize (GTK_WIDGET (view));
1281 }
1282
1283 static void
1284 go_to_link (EvView *view, EvLink *link)
1285 {
1286         EvLinkType type;
1287         const char *uri;
1288         int page;
1289
1290         type = ev_link_get_link_type (link);
1291
1292         switch (type) {
1293                 case EV_LINK_TYPE_TITLE:
1294                         break;
1295                 case EV_LINK_TYPE_PAGE:
1296                         page = ev_link_get_page (link);
1297                         set_document_page (view, page);
1298                         break;
1299                 case EV_LINK_TYPE_EXTERNAL_URI:
1300                         uri = ev_link_get_uri (link);
1301                         gnome_vfs_url_show (uri);
1302                         break;
1303         }
1304 }
1305
1306 void
1307 ev_view_go_to_link (EvView *view, EvLink *link)
1308 {
1309         go_to_link (view, link);
1310 }
1311
1312 void
1313 ev_view_set_page (EvView *view,
1314                   int     page)
1315 {
1316         g_return_if_fail (EV_IS_VIEW (view));
1317
1318         set_document_page (view, page);
1319 }
1320
1321 int
1322 ev_view_get_page (EvView *view)
1323 {
1324         if (view->document)
1325                 return ev_document_get_page (view->document);
1326         else
1327                 return 1;
1328 }
1329
1330 static void
1331 ev_view_zoom (EvView   *view,
1332               double    factor,
1333               gboolean  relative)
1334 {
1335         double scale;
1336
1337         if (relative)
1338                 scale = view->scale * factor;
1339         else
1340                 scale = factor;
1341
1342         scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
1343
1344         if (ABS (scale - view->scale) < ZOOM_EPSILON)
1345                 return;
1346
1347         view->scale = scale;
1348
1349         ev_document_set_scale (view->document, view->scale);
1350
1351         gtk_widget_queue_resize (GTK_WIDGET (view));
1352 }
1353
1354 void
1355 ev_view_zoom_in (EvView *view)
1356 {
1357         ev_view_zoom (view, ZOOM_IN_FACTOR, TRUE);
1358 }
1359
1360 void
1361 ev_view_zoom_out (EvView *view)
1362 {
1363         ev_view_zoom (view, ZOOM_OUT_FACTOR, TRUE);
1364 }
1365
1366 void
1367 ev_view_normal_size (EvView *view)
1368 {
1369         ev_view_zoom (view, 1.0, FALSE);
1370 }
1371
1372 /* Unfortunately this is not idempotent (!) (numerical stability
1373  * issues because width and height are rounded) */
1374 void
1375 ev_view_best_fit (EvView *view, int allocation_width, int allocation_height)
1376 {
1377         int target_width, target_height;
1378         int width, height;
1379         GtkBorder border;
1380
1381         if (!GTK_WIDGET_REALIZED (view) || view->document == NULL)
1382                 return;
1383
1384         width = height = 0;
1385         /* This is the bad part. You could make it stable by doing
1386          * ev_document_set_scale 1.0. But at least with pdf this means
1387          * redrawing the whole page */
1388         ev_document_get_page_size (view->document, -1, &width, &height);
1389         /* FIXME: The border size isn't constant.  Ugh.  Still, if we have extra
1390          * space, we just cut it from the border */
1391         ev_document_misc_get_page_border_size (width, height, &border);
1392
1393         target_width = allocation_width - (view->spacing * 2 + border.left + border.right);
1394         target_height = allocation_height - (view->spacing * 2 + border.top + border.bottom);
1395
1396         LOG ("Best fit %d %d", allocation_width, allocation_height);
1397
1398         if (width != 0 && height != 0) {
1399                 double scale;
1400                 double scale_w, scale_h;
1401
1402                 scale_w = (double)target_width * view->scale / width;
1403                 scale_h = (double)target_height * view->scale / height;
1404
1405                 scale = (scale_w < scale_h) ? scale_w : scale_h;
1406
1407                 ev_view_zoom (view, scale, FALSE);
1408         }
1409
1410 }
1411
1412 void
1413 ev_view_fit_width (EvView *view, int allocation_width, int allocation_height,
1414                    int vsb_width)
1415 {
1416         int target_width, target_height;
1417         int width, height;
1418         GtkBorder border;
1419
1420         if (view->document == NULL)
1421                 return;
1422
1423         width = height = 0;
1424         ev_document_get_page_size (view->document, -1, &width, &height);
1425         ev_document_misc_get_page_border_size (width, height, &border);
1426
1427         target_width = allocation_width - (view->spacing * 2 + border.left + border.right);
1428         target_height = allocation_height - (view->spacing * 2 + border.top + border.bottom);
1429
1430         if (width) {
1431                 double scale;
1432                 scale = (double)target_width * view->scale / width;
1433
1434                 if (height * scale / view->scale > target_height)
1435                         scale = ((double)(target_width - vsb_width) * view->scale / width);
1436
1437                 ev_view_zoom (view, scale, FALSE);
1438         }
1439 }
1440
1441 const char *
1442 ev_view_get_status (EvView *view)
1443 {
1444         g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1445
1446         return view->status;
1447 }
1448
1449 const char *
1450 ev_view_get_find_status (EvView *view)
1451 {
1452         g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1453
1454         return view->find_status;
1455 }
1456
1457 void
1458 ev_view_find_next (EvView *view)
1459 {
1460         int n_results, n_pages;
1461         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1462
1463         n_results = ev_document_find_get_n_results (find);
1464         n_pages = ev_document_get_n_pages (view->document);
1465
1466         view->find_result++;
1467
1468         if (view->find_result >= n_results) {
1469                 view->find_result = 0;
1470                 view->find_page++;
1471
1472                 if (view->find_page > n_pages) {
1473                         view->find_page = 1;
1474                 }
1475
1476                 jump_to_find_page (view);
1477         } else {
1478                 jump_to_find_result (view);
1479                 gtk_widget_queue_draw (GTK_WIDGET (view));
1480         }
1481 }
1482
1483 void
1484 ev_view_find_previous (EvView *view)
1485 {
1486         int n_results, n_pages;
1487         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1488
1489         n_results = ev_document_find_get_n_results (find);
1490         n_pages = ev_document_get_n_pages (view->document);
1491
1492         view->find_result--;
1493
1494         if (view->find_result < 0) {
1495                 view->find_result = 0;
1496                 view->find_page--;
1497
1498                 if (view->find_page < 1) {
1499                         view->find_page = n_pages;
1500                 }
1501
1502                 jump_to_find_page (view);
1503         } else {
1504                 jump_to_find_result (view);
1505                 gtk_widget_queue_draw (GTK_WIDGET (view));
1506         }
1507 }
1508 void
1509 ev_view_hide_cursor (EvView *view)
1510 {
1511        ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
1512 }
1513
1514 void
1515 ev_view_show_cursor (EvView *view)
1516 {
1517        ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
1518 }