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 #include "ev-job-queue.h"
  35 #include "ev-page-cache.h"
  36 #include "ev-pixbuf-cache.h"
  37
  38 #define EV_VIEW_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass))
  39 #define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW))
  40 #define EV_VIEW_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass))
  41
  42 enum {
  43         PROP_0,
  44         PROP_STATUS,
  45         PROP_FIND_STATUS
  46 };
  47
  48 enum {
  49   TARGET_STRING,
  50   TARGET_TEXT,
  51   TARGET_COMPOUND_TEXT,
  52   TARGET_UTF8_STRING,
  53   TARGET_TEXT_BUFFER_CONTENTS
  54 };
  55
  56 static const GtkTargetEntry targets[] = {
  57         { "STRING", 0, TARGET_STRING },
  58         { "TEXT",   0, TARGET_TEXT },
  59         { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
  60         { "UTF8_STRING", 0, TARGET_UTF8_STRING },
  61 };
  62
  63 typedef enum {
  64         EV_VIEW_CURSOR_NORMAL,
  65         EV_VIEW_CURSOR_LINK,
  66         EV_VIEW_CURSOR_WAIT,
  67         EV_VIEW_CURSOR_HIDDEN
  68 } EvViewCursor;
  69
  70 #define ZOOM_IN_FACTOR  1.2
  71 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
  72
  73 #define MIN_SCALE 0.05409
  74 #define MAX_SCALE 18.4884
  75
  76 struct _EvView {
  77         GtkWidget parent_instance;
  78
  79         EvDocument *document;
  80
  81         GdkWindow *bin_window;
  82
  83         char *status;
  84         char *find_status;
  85
  86         int scroll_x;
  87         int scroll_y;
  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         EvPageCache *page_cache;
  99         EvPixbufCache *pixbuf_cache;
 100
 101         gint current_page;
 102         EvJobRender *current_job;
 103
 104         int find_page;
 105         int find_result;
 106         int spacing;
 107
 108         double scale;
 109         int width;
 110         int height;
 111 };
 112
 113 struct _EvViewClass {
 114         GtkWidgetClass parent_class;
 115
 116         void    (*set_scroll_adjustments) (EvView         *view,
 117                                            GtkAdjustment  *hadjustment,
 118                                            GtkAdjustment  *vadjustment);
 119         void    (*scroll_view)            (EvView         *view,
 120                                            GtkScrollType   scroll,
 121                                            gboolean        horizontal);
 122
 123 };
 124
 125
 126 static void ev_view_set_scroll_adjustments (EvView         *view,
 127                                             GtkAdjustment  *hadjustment,
 128                                             GtkAdjustment  *vadjustment);
 129
 130 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
 131
 132 /*** Helper functions ***/
 133
 134 static void
 135 view_update_adjustments (EvView *view)
 136 {
 137         int old_x = view->scroll_x;
 138         int old_y = view->scroll_y;
 139
 140         if (view->hadjustment)
 141                 view->scroll_x = view->hadjustment->value;
 142         else
 143                 view->scroll_x = 0;
 144
 145         if (view->vadjustment)
 146                 view->scroll_y = view->vadjustment->value;
 147         else
 148                 view->scroll_y = 0;
 149
 150         if (GTK_WIDGET_REALIZED (view) &&
 151             (view->scroll_x != old_x || view->scroll_y != old_y)) {
 152                 gdk_window_move (view->bin_window, - view->scroll_x, - view->scroll_y);
 153                 gdk_window_process_updates (view->bin_window, TRUE);
 154         }
 155 }
 156
 157 static void
 158 view_set_adjustment_values (EvView         *view,
 159                             GtkOrientation  orientation)
 160 {
 161         GtkWidget *widget = GTK_WIDGET (view);
 162         GtkAdjustment *adjustment;
 163         gboolean value_changed = FALSE;
 164         int requisition;
 165         int allocation;
 166
 167         if (orientation == GTK_ORIENTATION_HORIZONTAL)  {
 168                 requisition = widget->requisition.width;
 169                 allocation = widget->allocation.width;
 170                 adjustment = view->hadjustment;
 171         } else {
 172                 requisition = widget->requisition.height;
 173                 allocation = widget->allocation.height;
 174                 adjustment = view->vadjustment;
 175         }
 176
 177         if (!adjustment)
 178                 return;
 179
 180         adjustment->page_size = allocation;
 181         adjustment->step_increment = allocation * 0.1;
 182         adjustment->page_increment = allocation * 0.9;
 183         adjustment->lower = 0;
 184         adjustment->upper = MAX (allocation, requisition);
 185
 186         if (adjustment->value > adjustment->upper - adjustment->page_size) {
 187                 adjustment->value = adjustment->upper - adjustment->page_size;
 188                 value_changed = TRUE;
 189         }
 190
 191         gtk_adjustment_changed (adjustment);
 192         if (value_changed)
 193                 gtk_adjustment_value_changed (adjustment);
 194 }
 195
 196 /*** Virtual function implementations ***/
 197
 198 static void
 199 ev_view_finalize (GObject *object)
 200 {
 201         EvView *view = EV_VIEW (object);
 202
 203         LOG ("Finalize");
 204
 205
 206         ev_view_set_scroll_adjustments (view, NULL, NULL);
 207
 208         G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
 209 }
 210
 211 static void
 212 ev_view_destroy (GtkObject *object)
 213 {
 214         EvView *view = EV_VIEW (object);
 215
 216         if (view->document) {
 217                 g_object_unref (view->document);
 218                 view->document = NULL;
 219         }
 220         if (view->pixbuf_cache) {
 221                 g_object_unref (view->pixbuf_cache);
 222                 view->pixbuf_cache = NULL;
 223         }
 224         ev_view_set_scroll_adjustments (view, NULL, NULL);
 225
 226         GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
 227 }
 228
 229 static void
 230 ev_view_get_offsets (EvView *view, int *x_offset, int *y_offset)
 231 {
 232         EvDocument *document = view->document;
 233         GtkWidget *widget = GTK_WIDGET (view);
 234         int width, height, target_width, target_height;
 235         GtkBorder border;
 236
 237         g_return_if_fail (EV_IS_DOCUMENT (document));
 238
 239         ev_page_cache_get_size (view->page_cache,
 240                                 view->current_page,
 241                                 view->scale,
 242                                 &width, &height);
 243
 244         ev_document_misc_get_page_border_size (width, height, &border);
 245
 246         *x_offset = view->spacing;
 247         *y_offset = view->spacing;
 248         target_width = width + border.left + border.right + view->spacing * 2;
 249         target_height = height + border.top + border.bottom + view->spacing * 2;
 250         *x_offset += MAX (0, (widget->allocation.width - target_width) / 2);
 251         *y_offset += MAX (0, (widget->allocation.height - target_height) / 2);
 252 }
 253
 254 static void
 255 view_rect_to_doc_rect (EvView *view, GdkRectangle *view_rect, GdkRectangle *doc_rect)
 256 {
 257         int x_offset, y_offset;
 258
 259         ev_view_get_offsets (view, &x_offset, &y_offset);
 260         doc_rect->x = (view_rect->x - x_offset) / view->scale;
 261         doc_rect->y = (view_rect->y - y_offset) / view->scale;
 262         doc_rect->width = view_rect->width / view->scale;
 263         doc_rect->height = view_rect->height / view->scale;
 264 }
 265
 266 static void
 267 doc_rect_to_view_rect (EvView *view, GdkRectangle *doc_rect, GdkRectangle *view_rect)
 268 {
 269         int x_offset, y_offset;
 270
 271         ev_view_get_offsets (view, &x_offset, &y_offset);
 272         view_rect->x = doc_rect->x * view->scale + x_offset;
 273         view_rect->y = doc_rect->y * view->scale + y_offset;
 274         view_rect->width = doc_rect->width * view->scale;
 275         view_rect->height = doc_rect->height * view->scale;
 276 }
 277
 278
 279 /* Called by size_request to make sure we have appropriate jobs running.
 280  */
 281 static void
 282 ev_view_size_request (GtkWidget      *widget,
 283                       GtkRequisition *requisition)
 284 {
 285         EvView *view = EV_VIEW (widget);
 286         GtkBorder border;
 287         gint width, height;
 288
 289         if (!GTK_WIDGET_REALIZED (widget))
 290                 return;
 291
 292         if (!view->document) {
 293                 requisition->width = 1;
 294                 requisition->height = 1;
 295                 return;
 296         }
 297
 298         ev_page_cache_get_size (view->page_cache,
 299                                 view->current_page,
 300                                 view->scale,
 301                                 &width, &height);
 302
 303         ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
 304                                         view->current_page,
 305                                         view->current_page,
 306                                         view->scale);
 307         ev_document_misc_get_page_border_size (width, height, &border);
 308
 309         if (view->width >= 0) {
 310                 requisition->width = 0;
 311         } else {
 312                 requisition->width = width + border.left + border.right +
 313                                      view->spacing * 2;
 314         }
 315
 316         if (view->height >= 0) {
 317                 requisition->height = 0;
 318         } else {
 319                 requisition->height = height + border.top + border.bottom +
 320                                       view->spacing * 2;
 321         }
 322 }
 323
 324 static void
 325 ev_view_size_allocate (GtkWidget      *widget,
 326                        GtkAllocation  *allocation)
 327 {
 328         EvView *view = EV_VIEW (widget);
 329
 330         GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
 331
 332         view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
 333         view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
 334
 335         if (GTK_WIDGET_REALIZED (widget)) {
 336                 gdk_window_resize (view->bin_window,
 337                                    MAX (widget->allocation.width, widget->requisition.width),
 338                                    MAX (widget->allocation.height, widget->requisition.height));
 339         }
 340 }
 341
 342 static void
 343 ev_view_realize (GtkWidget *widget)
 344 {
 345         EvView *view = EV_VIEW (widget);
 346         GdkWindowAttr attributes;
 347
 348         GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 349
 350
 351         attributes.window_type = GDK_WINDOW_CHILD;
 352         attributes.wclass = GDK_INPUT_OUTPUT;
 353         attributes.visual = gtk_widget_get_visual (widget);
 354         attributes.colormap = gtk_widget_get_colormap (widget);
 355
 356         attributes.x = widget->allocation.x;
 357         attributes.y = widget->allocation.y;
 358         attributes.width = widget->allocation.width;
 359         attributes.height = widget->allocation.height;
 360         attributes.event_mask = 0;
 361
 362         widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
 363                                          &attributes,
 364                                          GDK_WA_X | GDK_WA_Y |
 365                                          GDK_WA_COLORMAP |
 366                                          GDK_WA_VISUAL);
 367         gdk_window_set_user_data (widget->window, widget);
 368         widget->style = gtk_style_attach (widget->style, widget->window);
 369         gdk_window_set_background (widget->window, &widget->style->mid[widget->state]);
 370
 371         attributes.x = 0;
 372         attributes.y = 0;
 373         attributes.width = MAX (widget->allocation.width, widget->requisition.width);
 374         attributes.height = MAX (widget->allocation.height, widget->requisition.height);
 375         attributes.event_mask = GDK_EXPOSURE_MASK |
 376                                 GDK_BUTTON_PRESS_MASK |
 377                                 GDK_BUTTON_RELEASE_MASK |
 378                                 GDK_SCROLL_MASK |
 379                                 GDK_KEY_PRESS_MASK |
 380                                 GDK_POINTER_MOTION_MASK |
 381                                 GDK_LEAVE_NOTIFY_MASK;
 382
 383         view->bin_window = gdk_window_new (widget->window,
 384                                            &attributes,
 385                                            GDK_WA_X | GDK_WA_Y |
 386                                            GDK_WA_COLORMAP |
 387                                            GDK_WA_VISUAL);
 388         gdk_window_set_user_data (view->bin_window, widget);
 389         gdk_window_show (view->bin_window);
 390
 391         widget->style = gtk_style_attach (widget->style, view->bin_window);
 392         gdk_window_set_background (view->bin_window, &widget->style->mid[widget->state]);
 393
 394         if (view->document) {
 395                 /* We can't get page size without a target, so we have to
 396                  * queue a size request at realization. Could be fixed
 397                  * with EvDocument changes to allow setting a GdkScreen
 398                  * without setting a target.
 399                  */
 400                 gtk_widget_queue_resize (widget);
 401         }
 402 }
 403
 404 static void
 405 ev_view_unrealize (GtkWidget *widget)
 406 {
 407         EvView *view = EV_VIEW (widget);
 408
 409         gdk_window_set_user_data (view->bin_window, NULL);
 410         gdk_window_destroy (view->bin_window);
 411         view->bin_window = NULL;
 412
 413         GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
 414 }
 415
 416 static guint32
 417 ev_gdk_color_to_rgb (const GdkColor *color)
 418 {
 419   guint32 result;
 420   result = (0xff0000 | (color->red & 0xff00));
 421   result <<= 8;
 422   result |= ((color->green & 0xff00) | (color->blue >> 8));
 423   return result;
 424 }
 425
 426 static void
 427 draw_rubberband (GtkWidget *widget, GdkWindow *window,
 428                  const GdkRectangle *rect, guchar alpha)
 429 {
 430         GdkGC *gc;
 431         GdkPixbuf *pixbuf;
 432         GdkColor *fill_color_gdk;
 433         guint fill_color;
 434         int x_offset, y_offset;
 435
 436         ev_view_get_offsets (EV_VIEW (widget), &x_offset, &y_offset);
 437
 438         fill_color_gdk = gdk_color_copy (&GTK_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
 439         fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
 440
 441         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
 442                                  rect->width, rect->height);
 443         gdk_pixbuf_fill (pixbuf, fill_color);
 444
 445         gdk_draw_pixbuf (window, NULL, pixbuf,
 446                          0, 0,
 447                          rect->x + x_offset, rect->y + y_offset,
 448                          rect->width, rect->height,
 449                          GDK_RGB_DITHER_NONE,
 450                          0, 0);
 451
 452         g_object_unref (pixbuf);
 453
 454         gc = gdk_gc_new (window);
 455         gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
 456         gdk_draw_rectangle (window, gc, FALSE,
 457                             rect->x + x_offset, rect->y + y_offset,
 458                             rect->width - 1,
 459                             rect->height - 1);
 460         g_object_unref (gc);
 461
 462         gdk_color_free (fill_color_gdk);
 463 }
 464
 465 static void
 466 highlight_find_results (EvView *view)
 467 {
 468         EvDocumentFind *find;
 469         int i, results = 0;
 470
 471         g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document));
 472
 473         find = EV_DOCUMENT_FIND (view->document);
 474
 475         g_mutex_lock (EV_DOC_MUTEX);
 476         results = ev_document_find_get_n_results (find);
 477         g_mutex_unlock (EV_DOC_MUTEX);
 478
 479         for (i = 0; i < results; i++) {
 480                 GdkRectangle rectangle;
 481                 guchar alpha;
 482
 483                 alpha = (i == view->find_result) ? 0x90 : 0x20;
 484                 g_mutex_lock (EV_DOC_MUTEX);
 485                 ev_document_find_get_result (find, i, &rectangle);
 486                 g_mutex_unlock (EV_DOC_MUTEX);
 487                 draw_rubberband (GTK_WIDGET (view), view->bin_window,
 488                                  &rectangle, alpha);
 489         }
 490 }
 491
 492
 493 static void
 494 expose_bin_window (GtkWidget      *widget,
 495                    GdkEventExpose *event)
 496 {
 497         EvView *view = EV_VIEW (widget);
 498         GtkBorder border;
 499         gint width, height;
 500         GdkRectangle area;
 501         int x_offset, y_offset;
 502         GdkPixbuf *scaled_image;
 503         GdkPixbuf *current_pixbuf;
 504
 505         if (view->document == NULL)
 506                 return;
 507
 508         ev_view_get_offsets (view, &x_offset, &y_offset);
 509         ev_page_cache_get_size (view->page_cache,
 510                                 view->current_page,
 511                                 view->scale,
 512                                 &width, &height);
 513
 514         ev_document_misc_get_page_border_size (width, height, &border);
 515
 516         /* Paint the frame */
 517         area.x = x_offset;
 518         area.y = y_offset;
 519         area.width = width + border.left + border.right;
 520         area.height = height + border.top + border.bottom;
 521         ev_document_misc_paint_one_page (view->bin_window, widget, &area, &border);
 522
 523         /* Render the document itself */
 524         LOG ("Render area %d %d %d %d - Offset %d %d",
 525              event->area.x, event->area.y,
 526              event->area.width, event->area.height,
 527              x_offset, y_offset);
 528
 529         current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, view->current_page);
 530
 531         if (current_pixbuf == NULL)
 532                 scaled_image = NULL;
 533         else if (width == gdk_pixbuf_get_width (current_pixbuf) &&
 534                  height == gdk_pixbuf_get_height (current_pixbuf))
 535                 scaled_image = g_object_ref (current_pixbuf);
 536         else
 537                 scaled_image = gdk_pixbuf_scale_simple (current_pixbuf,
 538                                                         width, height,
 539                                                         GDK_INTERP_NEAREST);
 540         if (scaled_image) {
 541                 gdk_draw_pixbuf (view->bin_window,
 542                                  GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
 543                                  scaled_image,
 544                                  0, 0,
 545                                  area.x + border.left,
 546                                  area.y + border.top,
 547                                  width, height,
 548                                  GDK_RGB_DITHER_NORMAL,
 549                                  0, 0);
 550                 g_object_unref (scaled_image);
 551         }
 552
 553         if (EV_IS_DOCUMENT_FIND (view->document)) {
 554                 highlight_find_results (view);
 555         }
 556
 557         if (view->has_selection) {
 558                 GdkRectangle rubberband;
 559
 560                 doc_rect_to_view_rect (view, &view->selection, &rubberband);
 561                 if (rubberband.width > 0 && rubberband.height > 0) {
 562                         draw_rubberband (widget, view->bin_window,
 563                                          &rubberband, 0x40);
 564                 }
 565         }
 566 }
 567
 568 static gboolean
 569 ev_view_expose_event (GtkWidget      *widget,
 570                       GdkEventExpose *event)
 571 {
 572         EvView *view = EV_VIEW (widget);
 573
 574         if (event->window == view->bin_window)
 575                 expose_bin_window (widget, event);
 576         else
 577                 return GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event (widget, event);
 578
 579         return FALSE;
 580 }
 581
 582 void
 583 ev_view_select_all (EvView *ev_view)
 584 {
 585         GtkWidget *widget = GTK_WIDGET (ev_view);
 586         GdkRectangle selection;
 587         int width, height;
 588         int x_offset, y_offset;
 589         GtkBorder border;
 590
 591         g_return_if_fail (EV_IS_VIEW (ev_view));
 592
 593
 594         ev_view_get_offsets (ev_view, &x_offset, &y_offset);
 595         ev_page_cache_get_size (ev_view->page_cache,
 596                                 ev_view->current_page,
 597                                 ev_view->scale,
 598                                 &width, &height);
 599         ev_document_misc_get_page_border_size (width, height, &border);
 600
 601         ev_view->has_selection = TRUE;
 602         selection.x = x_offset + border.left;
 603         selection.y = y_offset + border.top;
 604         selection.width = width;
 605         selection.height = height;
 606         view_rect_to_doc_rect (ev_view, &selection, &ev_view->selection);
 607
 608         gtk_widget_queue_draw (widget);
 609 }
 610
 611 void
 612 ev_view_copy (EvView *ev_view)
 613 {
 614         GtkClipboard *clipboard;
 615         GdkRectangle selection;
 616         char *text;
 617
 618         doc_rect_to_view_rect (ev_view, &ev_view->selection, &selection);
 619         g_mutex_lock (EV_DOC_MUTEX);
 620         text = ev_document_get_text (ev_view->document, &selection);
 621         g_mutex_unlock (EV_DOC_MUTEX);
 622
 623         clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
 624                                               GDK_SELECTION_CLIPBOARD);
 625         gtk_clipboard_set_text (clipboard, text, -1);
 626         g_free (text);
 627 }
 628
 629 static void
 630 ev_view_primary_get_cb (GtkClipboard     *clipboard,
 631                         GtkSelectionData *selection_data,
 632                         guint             info,
 633                         gpointer          data)
 634 {
 635         EvView *ev_view = EV_VIEW (data);
 636         GdkRectangle selection;
 637         char *text;
 638
 639         doc_rect_to_view_rect (ev_view, &ev_view->selection, &selection);
 640         g_mutex_lock (EV_DOC_MUTEX);
 641         text = ev_document_get_text (ev_view->document, &selection);
 642         g_mutex_unlock (EV_DOC_MUTEX);
 643         gtk_selection_data_set_text (selection_data, text, -1);
 644 }
 645
 646 static void
 647 ev_view_primary_clear_cb (GtkClipboard *clipboard,
 648                           gpointer      data)
 649 {
 650         EvView *ev_view = EV_VIEW (data);
 651
 652         ev_view->has_selection = FALSE;
 653 }
 654
 655 static void
 656 ev_view_update_primary_selection (EvView *ev_view)
 657 {
 658         GtkClipboard *clipboard;
 659
 660         clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
 661                                               GDK_SELECTION_PRIMARY);
 662
 663         if (ev_view->has_selection) {
 664                 if (!gtk_clipboard_set_with_owner (clipboard,
 665                                                    targets,
 666                                                    G_N_ELEMENTS (targets),
 667                                                    ev_view_primary_get_cb,
 668                                                    ev_view_primary_clear_cb,
 669                                                    G_OBJECT (ev_view)))
 670                         ev_view_primary_clear_cb (clipboard, ev_view);
 671         } else {
 672                 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
 673                         gtk_clipboard_clear (clipboard);
 674         }
 675 }
 676
 677 static gboolean
 678 ev_view_button_press_event (GtkWidget      *widget,
 679                             GdkEventButton *event)
 680 {
 681         EvView *view = EV_VIEW (widget);
 682
 683         if (!GTK_WIDGET_HAS_FOCUS (widget)) {
 684                 gtk_widget_grab_focus (widget);
 685         }
 686
 687         view->pressed_button = event->button;
 688
 689         switch (event->button) {
 690                 case 1:
 691                         if (view->has_selection) {
 692                                 view->has_selection = FALSE;
 693                                 gtk_widget_queue_draw (widget);
 694                         }
 695
 696                         view->selection_start.x = event->x;
 697                         view->selection_start.y = event->y;
 698                         break;
 699         }
 700
 701         return TRUE;
 702 }
 703
 704 static char *
 705 status_message_from_link (EvView *view, EvLink *link)
 706 {
 707         EvLinkType type;
 708         char *msg = NULL;
 709         char *page_label;
 710
 711         type = ev_link_get_link_type (link);
 712
 713         switch (type) {
 714                 case EV_LINK_TYPE_TITLE:
 715                         if (ev_link_get_title (link))
 716                                 msg = g_strdup (ev_link_get_title (link));
 717                         break;
 718                 case EV_LINK_TYPE_PAGE:
 719                         page_label = ev_page_cache_get_page_label (view->page_cache, ev_link_get_page (link));
 720                         msg = g_strdup_printf (_("Go to page %s"), page_label);
 721                         g_free (page_label);
 722                         break;
 723                 case EV_LINK_TYPE_EXTERNAL_URI:
 724                         msg = g_strdup (ev_link_get_uri (link));
 725                         break;
 726                 default:
 727                         break;
 728         }
 729
 730         return msg;
 731 }
 732
 733 static void
 734 ev_view_set_status (EvView *view, const char *message)
 735 {
 736         g_return_if_fail (EV_IS_VIEW (view));
 737
 738         if (message != view->status) {
 739                 g_free (view->status);
 740                 view->status = g_strdup (message);
 741                 g_object_notify (G_OBJECT (view), "status");
 742         }
 743 }
 744
 745 static void
 746 ev_view_set_find_status (EvView *view, const char *message)
 747 {
 748         g_return_if_fail (EV_IS_VIEW (view));
 749
 750         g_free (view->find_status);
 751         view->find_status = g_strdup (message);
 752         g_object_notify (G_OBJECT (view), "find-status");
 753 }
 754
 755 static GdkCursor *
 756 ev_view_create_invisible_cursor(void)
 757 {
 758        GdkBitmap *empty;
 759        GdkColor black = { 0, 0, 0, 0 };
 760        static char bits[] = { 0x00 };
 761
 762        empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
 763
 764        return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
 765 }
 766
 767 static void
 768 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
 769 {
 770         GdkCursor *cursor = NULL;
 771         GdkDisplay *display;
 772         GtkWidget *widget;
 773
 774         if (view->cursor == new_cursor) {
 775                 return;
 776         }
 777
 778         widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
 779         display = gtk_widget_get_display (widget);
 780         view->cursor = new_cursor;
 781
 782         switch (new_cursor) {
 783                 case EV_VIEW_CURSOR_NORMAL:
 784                         gdk_window_set_cursor (widget->window, NULL);
 785                         break;
 786                 case EV_VIEW_CURSOR_LINK:
 787                         cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
 788                         break;
 789                 case EV_VIEW_CURSOR_WAIT:
 790                         cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
 791                         break;
 792                 case EV_VIEW_CURSOR_HIDDEN:
 793                         cursor = ev_view_create_invisible_cursor ();
 794                         break;
 795
 796         }
 797
 798         if (cursor) {
 799                 gdk_window_set_cursor (widget->window, cursor);
 800                 gdk_cursor_unref (cursor);
 801                 gdk_flush();
 802         }
 803 }
 804
 805
 806 static void
 807 find_page_at_location (EvView  *view,
 808                        gdouble  x,
 809                        gdouble  y,
 810                        gint    *page,
 811                        gint    *x_offset,
 812                        gint    *y_offset)
 813 {
 814         GtkBorder border;
 815         gint width, height;
 816
 817         ev_page_cache_get_size (view->page_cache,
 818                                 view->current_page,
 819                                 view->scale,
 820                                 &width, &height);
 821         ev_document_misc_get_page_border_size (width, height, &border);
 822
 823         x -= (border.left + view->spacing);
 824         y -= (border.top + view->spacing);
 825
 826         if ((x < 0) || (y < 0) ||
 827             (x >= width) || (y >= height)) {
 828                 *page = -1;
 829                 return;
 830         }
 831         *page = view->current_page;
 832         *x_offset = (gint) x;
 833         *y_offset = (gint) y;
 834 }
 835
 836 static EvLink *
 837 get_link_at_location (EvView  *view,
 838                       gdouble  x,
 839                       gdouble  y)
 840 {
 841         gint page;
 842         gint x_offset, y_offset;
 843         GList *link_mapping;
 844
 845         find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
 846         if (page == -1)
 847                 return NULL;
 848
 849         link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
 850
 851         return ev_link_mapping_find (link_mapping, x_offset /view->scale, y_offset /view->scale);
 852 }
 853
 854
 855 static gboolean
 856 ev_view_motion_notify_event (GtkWidget      *widget,
 857                              GdkEventMotion *event)
 858 {
 859         EvView *view = EV_VIEW (widget);
 860
 861         if (view->pressed_button > 0) {
 862                 GdkRectangle selection;
 863
 864                 view->has_selection = TRUE;
 865                 selection.x = MIN (view->selection_start.x, event->x);
 866                 selection.y = MIN (view->selection_start.y, event->y);
 867                 selection.width = ABS (view->selection_start.x - event->x) + 1;
 868                 selection.height = ABS (view->selection_start.y - event->y) + 1;
 869                 view_rect_to_doc_rect (view, &selection, &view->selection);
 870
 871                 gtk_widget_queue_draw (widget);
 872         } else if (view->document) {
 873                 EvLink *link;
 874
 875                 link = get_link_at_location (view, event->x, event->y);
 876                 if (link) {
 877                         char *msg;
 878
 879                         msg = status_message_from_link (view, link);
 880                         ev_view_set_status (view, msg);
 881                         ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
 882                         g_free (msg);
 883                 } else {
 884                         ev_view_set_status (view, NULL);
 885                         if (view->cursor == EV_VIEW_CURSOR_LINK) {
 886                                 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
 887                         }
 888                 }
 889         }
 890
 891         return TRUE;
 892 }
 893
 894 static gboolean
 895 ev_view_button_release_event (GtkWidget      *widget,
 896                               GdkEventButton *event)
 897 {
 898         EvView *view = EV_VIEW (widget);
 899
 900         view->pressed_button = -1;
 901
 902         if (view->has_selection) {
 903                 ev_view_update_primary_selection (view);
 904         } else if (view->document) {
 905                 EvLink *link;
 906
 907                 link = get_link_at_location (view, event->x, event->y);
 908                 if (link) {
 909                         ev_view_go_to_link (view, link);
 910                 }
 911         }
 912
 913         return FALSE;
 914 }
 915
 916 static void
 917 on_adjustment_value_changed (GtkAdjustment  *adjustment,
 918                              EvView *view)
 919 {
 920         view_update_adjustments (view);
 921 }
 922
 923 static void
 924 set_scroll_adjustment (EvView *view,
 925                        GtkOrientation  orientation,
 926                        GtkAdjustment  *adjustment)
 927 {
 928         GtkAdjustment **to_set;
 929
 930         if (orientation == GTK_ORIENTATION_HORIZONTAL)
 931                 to_set = &view->hadjustment;
 932         else
 933                 to_set = &view->vadjustment;
 934
 935         if (*to_set != adjustment) {
 936                 if (*to_set) {
 937                         g_signal_handlers_disconnect_by_func (*to_set,
 938                                                               (gpointer) on_adjustment_value_changed,
 939                                                               view);
 940                         g_object_unref (*to_set);
 941                 }
 942
 943                 *to_set = adjustment;
 944                 view_set_adjustment_values (view, orientation);
 945
 946                 if (*to_set) {
 947                         g_object_ref (*to_set);
 948                         g_signal_connect (*to_set, "value_changed",
 949                                           G_CALLBACK (on_adjustment_value_changed), view);
 950                 }
 951         }
 952 }
 953
 954 static void
 955 ev_view_set_scroll_adjustments (EvView *view,
 956                                 GtkAdjustment  *hadjustment,
 957                                 GtkAdjustment  *vadjustment)
 958 {
 959         set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
 960         set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
 961
 962         view_update_adjustments (view);
 963 }
 964
 965 static void
 966 add_scroll_binding (GtkBindingSet  *binding_set,
 967                     guint           keyval,
 968                     GtkScrollType   scroll,
 969                     gboolean        horizontal)
 970 {
 971   guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
 972
 973   gtk_binding_entry_add_signal (binding_set, keyval, 0,
 974                                 "scroll_view", 2,
 975                                 GTK_TYPE_SCROLL_TYPE, scroll,
 976                                 G_TYPE_BOOLEAN, horizontal);
 977   gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
 978                                 "scroll_view", 2,
 979                                 GTK_TYPE_SCROLL_TYPE, scroll,
 980                                 G_TYPE_BOOLEAN, horizontal);
 981 }
 982
 983 static void
 984 ev_view_scroll_view (EvView *view,
 985                      GtkScrollType scroll,
 986                      gboolean horizontal)
 987 {
 988         if (scroll == GTK_SCROLL_PAGE_BACKWARD) {
 989                 ev_page_cache_prev_page (view->page_cache);
 990         } else if (scroll == GTK_SCROLL_PAGE_FORWARD) {
 991                 ev_page_cache_next_page (view->page_cache);
 992         } else {
 993                 GtkAdjustment *adjustment;
 994                 double value;
 995
 996                 if (horizontal) {
 997                         adjustment = view->hadjustment;
 998                 } else {
 999                         adjustment = view->vadjustment;
1000                 }
1001
1002                 value = adjustment->value;
1003
1004                 switch (scroll) {
1005                         case GTK_SCROLL_STEP_BACKWARD:
1006                                 value -= adjustment->step_increment;
1007                                 break;
1008                         case GTK_SCROLL_STEP_FORWARD:
1009                                 value += adjustment->step_increment;
1010                                 break;
1011                         default:
1012                                 break;
1013                 }
1014
1015                 value = CLAMP (value, adjustment->lower,
1016                                adjustment->upper - adjustment->page_size);
1017
1018                 gtk_adjustment_set_value (adjustment, value);
1019         }
1020 }
1021
1022 static void
1023 ev_view_set_property (GObject *object,
1024                       guint prop_id,
1025                       const GValue *value,
1026                       GParamSpec *pspec)
1027 {
1028         switch (prop_id)
1029         {
1030                 /* Read only */
1031                 case PROP_STATUS:
1032                 case PROP_FIND_STATUS:
1033                         break;
1034         }
1035 }
1036
1037 static void
1038 ev_view_get_property (GObject *object,
1039                       guint prop_id,
1040                       GValue *value,
1041                       GParamSpec *pspec)
1042 {
1043         EvView *view = EV_VIEW (object);
1044
1045         switch (prop_id)
1046         {
1047                 case PROP_STATUS:
1048                         g_value_set_string (value, view->status);
1049                         break;
1050                 case PROP_FIND_STATUS:
1051                         g_value_set_string (value, view->status);
1052                         break;
1053         }
1054 }
1055
1056 static void
1057 ev_view_class_init (EvViewClass *class)
1058 {
1059         GObjectClass *object_class = G_OBJECT_CLASS (class);
1060         GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
1061         GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
1062         GtkBindingSet *binding_set;
1063
1064         object_class->finalize = ev_view_finalize;
1065         object_class->set_property = ev_view_set_property;
1066         object_class->get_property = ev_view_get_property;
1067
1068         widget_class->expose_event = ev_view_expose_event;
1069         widget_class->button_press_event = ev_view_button_press_event;
1070         widget_class->motion_notify_event = ev_view_motion_notify_event;
1071         widget_class->button_release_event = ev_view_button_release_event;
1072         widget_class->size_request = ev_view_size_request;
1073         widget_class->size_allocate = ev_view_size_allocate;
1074         widget_class->realize = ev_view_realize;
1075         widget_class->unrealize = ev_view_unrealize;
1076         gtk_object_class->destroy = ev_view_destroy;
1077
1078         class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
1079         class->scroll_view = ev_view_scroll_view;
1080
1081         widget_class->set_scroll_adjustments_signal =  g_signal_new ("set-scroll-adjustments",
1082                                                                      G_OBJECT_CLASS_TYPE (object_class),
1083                                                                      G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1084                                                                      G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
1085                                                                      NULL, NULL,
1086                                                                      ev_marshal_VOID__OBJECT_OBJECT,
1087                                                                      G_TYPE_NONE, 2,
1088                                                                      GTK_TYPE_ADJUSTMENT,
1089                                                                      GTK_TYPE_ADJUSTMENT);
1090
1091         g_signal_new ("scroll_view",
1092                       G_TYPE_FROM_CLASS (object_class),
1093                       G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1094                       G_STRUCT_OFFSET (EvViewClass, scroll_view),
1095                       NULL, NULL,
1096                       ev_marshal_VOID__ENUM_BOOLEAN,
1097                       G_TYPE_NONE, 2,
1098                       GTK_TYPE_SCROLL_TYPE,
1099                       G_TYPE_BOOLEAN);
1100
1101         g_object_class_install_property (object_class,
1102                                          PROP_STATUS,
1103                                          g_param_spec_string ("status",
1104                                                               "Status Message",
1105                                                               "The status message",
1106                                                               NULL,
1107                                                               G_PARAM_READABLE));
1108
1109         g_object_class_install_property (object_class,
1110                                          PROP_FIND_STATUS,
1111                                          g_param_spec_string ("find-status",
1112                                                               "Find Status Message",
1113                                                               "The find status message",
1114                                                               NULL,
1115                                                               G_PARAM_READABLE));
1116
1117         binding_set = gtk_binding_set_by_class (class);
1118
1119         add_scroll_binding (binding_set, GDK_Left,  GTK_SCROLL_STEP_BACKWARD, TRUE);
1120         add_scroll_binding (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD,  TRUE);
1121         add_scroll_binding (binding_set, GDK_Up,    GTK_SCROLL_STEP_BACKWARD, FALSE);
1122         add_scroll_binding (binding_set, GDK_Down,  GTK_SCROLL_STEP_FORWARD,  FALSE);
1123
1124         add_scroll_binding (binding_set, GDK_Page_Up,   GTK_SCROLL_PAGE_BACKWARD, FALSE);
1125         add_scroll_binding (binding_set, GDK_Page_Down, GTK_SCROLL_PAGE_FORWARD,  FALSE);
1126 }
1127
1128 static void
1129 ev_view_init (EvView *view)
1130 {
1131         GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
1132
1133         view->spacing = 10;
1134         view->scale = 1.0;
1135         view->current_page = 0;
1136         view->pressed_button = -1;
1137         view->cursor = EV_VIEW_CURSOR_NORMAL;
1138 }
1139
1140 static void
1141 update_find_status_message (EvView *view)
1142 {
1143         char *message;
1144
1145 //      g_mutex_lock (EV_DOC_MUTEX);
1146         if (ev_document_get_page (view->document) == view->find_page) {
1147                 int results;
1148
1149 //              g_mutex_lock (EV_DOC_MUTEX);
1150                 results = ev_document_find_get_n_results
1151                                 (EV_DOCUMENT_FIND (view->document));
1152 //              g_mutex_unlock (EV_DOC_MUTEX);
1153                 /* TRANS: Sometimes this could be better translated as
1154                    "%d hit(s) on this page".  Therefore this string
1155                    contains plural cases. */
1156                 message = g_strdup_printf (ngettext ("%d found on this page",
1157                                                      "%d found on this page",
1158                                                      results),
1159                                            results);
1160         } else {
1161                 double percent;
1162
1163                 g_mutex_lock (EV_DOC_MUTEX);
1164                 percent = ev_document_find_get_progress
1165                                 (EV_DOCUMENT_FIND (view->document));
1166                 g_mutex_unlock (EV_DOC_MUTEX);
1167                 if (percent >= (1.0 - 1e-10)) {
1168                         message = g_strdup (_("Not found"));
1169                 } else {
1170                         message = g_strdup_printf (_("%3d%% remaining to search"),
1171                                                    (int) ((1.0 - percent) * 100));
1172                 }
1173
1174         }
1175 //      g_mutex_unlock (EV_DOC_MUTEX);
1176
1177         ev_view_set_find_status (view, message);
1178 //      g_free (message);
1179 }
1180
1181 #define MARGIN 5
1182
1183 static void
1184 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
1185 {
1186         GtkWidget *widget = GTK_WIDGET (view);
1187         GtkAdjustment *adjustment;
1188         int value;
1189
1190         adjustment = view->vadjustment;
1191
1192         if (rect->y < adjustment->value) {
1193                 value = MAX (adjustment->lower, rect->y - MARGIN);
1194                 gtk_adjustment_set_value (view->vadjustment, value);
1195         } else if (rect->y + rect->height >
1196                    adjustment->value + widget->allocation.height) {
1197                 value = MIN (adjustment->upper, rect->y + rect->height -
1198                              widget->allocation.height + MARGIN);
1199                 gtk_adjustment_set_value (view->vadjustment, value);
1200         }
1201
1202         adjustment = view->hadjustment;
1203
1204         if (rect->x < adjustment->value) {
1205                 value = MAX (adjustment->lower, rect->x - MARGIN);
1206                 gtk_adjustment_set_value (view->hadjustment, value);
1207         } else if (rect->x + rect->height >
1208                    adjustment->value + widget->allocation.width) {
1209                 value = MIN (adjustment->upper, rect->x + rect->width -
1210                              widget->allocation.width + MARGIN);
1211                 gtk_adjustment_set_value (view->hadjustment, value);
1212         }
1213 }
1214
1215 static void
1216 jump_to_find_result (EvView *view)
1217 {
1218         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1219         GdkRectangle rect;
1220         int n_results;
1221
1222         g_mutex_lock (EV_DOC_MUTEX);
1223         n_results = ev_document_find_get_n_results (find);
1224         g_mutex_unlock (EV_DOC_MUTEX);
1225
1226         if (n_results > view->find_result) {
1227                 g_mutex_lock (EV_DOC_MUTEX);
1228                 ev_document_find_get_result
1229                         (find, view->find_result, &rect);
1230                 g_mutex_unlock (EV_DOC_MUTEX);
1231
1232                 ensure_rectangle_is_visible (view, &rect);
1233         }
1234 }
1235
1236 static void
1237 jump_to_find_page (EvView *view)
1238 {
1239         int n_pages, i;
1240
1241         n_pages = ev_page_cache_get_n_pages (view->page_cache);
1242
1243         for (i = 0; i < n_pages; i++) {
1244                 int has_results;
1245                 int page;
1246
1247                 page = i + view->find_page;
1248                 if (page >= n_pages) {
1249                         page = page - n_pages;
1250                 }
1251
1252                 //              g_mutex_lock (EV_DOC_MUTEX);
1253                 has_results = ev_document_find_page_has_results
1254                                 (EV_DOCUMENT_FIND (view->document), page);
1255                 if (has_results == -1) {
1256                         view->find_page = page;
1257                         break;
1258                 } else if (has_results == 1) {
1259                         ev_page_cache_set_current_page (view->page_cache, page);
1260                         jump_to_find_result (view);
1261                         break;
1262                 }
1263         }
1264 }
1265
1266 static void
1267 find_changed_cb (EvDocument *document, int page, EvView *view)
1268 {
1269         jump_to_find_page (view);
1270         jump_to_find_result (view);
1271         update_find_status_message (view);
1272
1273 #if 0
1274         /* FIXME: */
1275         if (ev_document_get_page (document) == page) {
1276                 gtk_widget_queue_draw (GTK_WIDGET (view));
1277         }
1278 #endif
1279 }
1280 /*** Public API ***/
1281
1282 GtkWidget*
1283 ev_view_new (void)
1284 {
1285         return g_object_new (EV_TYPE_VIEW, NULL);
1286 }
1287
1288 static void
1289 job_finished_cb (EvPixbufCache *pixbuf_cache,
1290                  EvView        *view)
1291 {
1292         gtk_widget_queue_draw (GTK_WIDGET (view));
1293 }
1294
1295
1296 static void
1297 page_changed_cb (EvPageCache *page_cache,
1298                  int          new_page,
1299                  EvView      *view)
1300 {
1301         int old_page = view->current_page;
1302         int old_width, old_height;
1303         int new_width, new_height;
1304
1305         if (old_page == new_page)
1306                 return;
1307
1308         ev_page_cache_get_size (page_cache,
1309                                 old_page,
1310                                 view->scale,
1311                                 &old_width, &old_height);
1312         ev_page_cache_get_size (page_cache,
1313                                 new_page,
1314                                 view->scale,
1315                                 &new_width, &new_height);
1316
1317         if (view->cursor != EV_VIEW_CURSOR_HIDDEN) {
1318                 //ev_view_set_cursor (view, EV_VIEW_CURSOR_WAIT);
1319         }
1320
1321         view->current_page = new_page;
1322         view->has_selection = FALSE;
1323
1324         ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
1325                                         view->current_page,
1326                                         view->current_page,
1327                                         view->scale);
1328
1329         if (new_width != old_width || new_height != old_height)
1330                 gtk_widget_queue_resize (GTK_WIDGET (view));
1331         else
1332                 gtk_widget_queue_draw (GTK_WIDGET (view));
1333
1334         gtk_adjustment_set_value (view->vadjustment,
1335                                   view->vadjustment->lower);
1336
1337         if (EV_IS_DOCUMENT_FIND (view->document)) {
1338                 view->find_page = new_page;
1339                 view->find_result = 0;
1340                 update_find_status_message (view);
1341         }
1342 }
1343
1344 void
1345 ev_view_set_document (EvView     *view,
1346                       EvDocument *document)
1347 {
1348         g_return_if_fail (EV_IS_VIEW (view));
1349
1350         if (document != view->document) {
1351                 if (view->document) {
1352                         g_signal_handlers_disconnect_by_func (view->document,
1353                                                               find_changed_cb,
1354                                                               view);
1355                         g_object_unref (view->document);
1356                         view->page_cache = NULL;
1357
1358                 }
1359
1360                 view->document = document;
1361                 view->find_page = 0;
1362                 view->find_result = 0;
1363
1364                 if (view->document) {
1365                         g_object_ref (view->document);
1366                         if (EV_IS_DOCUMENT_FIND (view->document)) {
1367                                 g_signal_connect (view->document,
1368                                                   "find_changed",
1369                                                   G_CALLBACK (find_changed_cb),
1370                                                   view);
1371                         }
1372                         view->page_cache = ev_document_get_page_cache (view->document);
1373                         g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
1374                         view->pixbuf_cache = ev_pixbuf_cache_new (view->document);
1375                         g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
1376                 }
1377
1378                 gtk_widget_queue_resize (GTK_WIDGET (view));
1379         }
1380 }
1381
1382 static void
1383 go_to_link (EvView *view, EvLink *link)
1384 {
1385         EvLinkType type;
1386         const char *uri;
1387         int page;
1388
1389         type = ev_link_get_link_type (link);
1390
1391         switch (type) {
1392                 case EV_LINK_TYPE_TITLE:
1393                         break;
1394                 case EV_LINK_TYPE_PAGE:
1395                         page = ev_link_get_page (link);
1396                         ev_page_cache_set_current_page (view->page_cache, page);
1397                         break;
1398                 case EV_LINK_TYPE_EXTERNAL_URI:
1399                         uri = ev_link_get_uri (link);
1400                         gnome_vfs_url_show (uri);
1401                         break;
1402         }
1403 }
1404
1405 void
1406 ev_view_go_to_link (EvView *view, EvLink *link)
1407 {
1408         go_to_link (view, link);
1409 }
1410
1411 static void
1412 ev_view_zoom (EvView   *view,
1413               double    factor,
1414               gboolean  relative)
1415 {
1416         double scale;
1417
1418         if (relative)
1419                 scale = view->scale * factor;
1420         else
1421                 scale = factor;
1422
1423         scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
1424
1425         view->scale = scale;
1426         gtk_widget_queue_resize (GTK_WIDGET (view));
1427 }
1428
1429 void
1430 ev_view_zoom_in (EvView *view)
1431 {
1432         view->width = view->height = -1;
1433         ev_view_zoom (view, ZOOM_IN_FACTOR, TRUE);
1434 }
1435
1436 void
1437 ev_view_zoom_out (EvView *view)
1438 {
1439         view->width = view->height = -1;
1440         ev_view_zoom (view, ZOOM_OUT_FACTOR, TRUE);
1441 }
1442
1443 static double
1444 size_to_zoom_factor (EvView *view, int width, int height)
1445 {
1446         int doc_width, doc_height;
1447         double scale, scale_w, scale_h;
1448         GtkBorder border;
1449
1450         doc_width = doc_height = 0;
1451         scale = scale_w = scale_h = 1.0;
1452         ev_page_cache_get_size (view->page_cache,
1453                                 view->current_page,
1454                                 view->scale,
1455                                 &doc_width,
1456                                 &doc_height);
1457
1458         /* FIXME: The border size isn't constant.  Ugh.  Still, if we have extra
1459          * space, we just cut it from the border */
1460         ev_document_misc_get_page_border_size (doc_width, doc_height, &border);
1461
1462         if (doc_width == 0 && doc_height == 0) {
1463                 return 0;
1464         }
1465
1466         if (width >= 0) {
1467                 int target_width;
1468
1469                 target_width = width - (view->spacing * 2 + border.left + border.right);
1470                 scale = scale_w = (double)target_width * view->scale / doc_width;
1471         }
1472
1473         if (height >= 0) {
1474                 int target_height;
1475
1476                 target_height = height - (view->spacing * 2 + border.top + border.bottom);
1477                 scale = scale_h = (double)target_height * view->scale / doc_height;
1478         }
1479
1480         if (width >= 0 && height >= 0) {
1481                 scale = (scale_w < scale_h) ? scale_w : scale_h;
1482         }
1483
1484         return scale;
1485 }
1486
1487 void
1488 ev_view_set_size (EvView     *view,
1489                   int         width,
1490                   int         height)
1491 {
1492         double factor;
1493
1494         if (!view->document)
1495                 return;
1496
1497         if (view->width != width ||
1498             view->height != height) {
1499                 view->width = width;
1500                 view->height = height;
1501                 factor = size_to_zoom_factor (view, width, height);
1502                 ev_view_zoom (view, factor, FALSE);
1503                 gtk_widget_queue_resize (GTK_WIDGET (view));
1504         }
1505 }
1506
1507 const char *
1508 ev_view_get_status (EvView *view)
1509 {
1510         g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1511
1512         return view->status;
1513 }
1514
1515 const char *
1516 ev_view_get_find_status (EvView *view)
1517 {
1518         g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1519
1520         return view->find_status;
1521 }
1522
1523 void
1524 ev_view_find_next (EvView *view)
1525 {
1526         EvPageCache *page_cache;
1527         int n_results, n_pages;
1528         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1529
1530         page_cache = ev_document_get_page_cache (view->document);
1531         g_mutex_lock (EV_DOC_MUTEX);
1532         n_results = ev_document_find_get_n_results (find);
1533         g_mutex_unlock (EV_DOC_MUTEX);
1534
1535         n_pages = ev_page_cache_get_n_pages (page_cache);
1536
1537         view->find_result++;
1538
1539         if (view->find_result >= n_results) {
1540                 view->find_result = 0;
1541                 view->find_page++;
1542
1543                 if (view->find_page >= n_pages) {
1544                         view->find_page = 0;
1545                 }
1546
1547                 jump_to_find_page (view);
1548         } else {
1549                 jump_to_find_result (view);
1550                 gtk_widget_queue_draw (GTK_WIDGET (view));
1551         }
1552 }
1553
1554 void
1555 ev_view_find_previous (EvView *view)
1556 {
1557         int n_results, n_pages;
1558         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1559         EvPageCache *page_cache;
1560
1561         page_cache = ev_document_get_page_cache (view->document);
1562
1563         g_mutex_lock (EV_DOC_MUTEX);
1564         n_results = ev_document_find_get_n_results (find);
1565         g_mutex_unlock (EV_DOC_MUTEX);
1566
1567         n_pages = ev_page_cache_get_n_pages (page_cache);
1568
1569         view->find_result--;
1570
1571         if (view->find_result < 0) {
1572                 view->find_result = 0;
1573                 view->find_page--;
1574
1575                 if (view->find_page < 0) {
1576                         view->find_page = n_pages - 1;
1577                 }
1578
1579                 jump_to_find_page (view);
1580         } else {
1581                 jump_to_find_result (view);
1582                 gtk_widget_queue_draw (GTK_WIDGET (view));
1583         }
1584 }
1585 void
1586 ev_view_hide_cursor (EvView *view)
1587 {
1588        ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
1589 }
1590
1591 void
1592 ev_view_show_cursor (EvView *view)
1593 {
1594        ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
1595 }