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