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