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
4 * Copyright (C) 2004 Red Hat, Inc
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.
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.
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.
22 #include <gtk/gtkalignment.h>
23 #include <glib/gi18n.h>
24 #include <gtk/gtkbindings.h>
25 #include <gtk/gtkselection.h>
26 #include <gtk/gtkclipboard.h>
27 #include <gdk/gdkkeysyms.h>
28 #include <libgnomevfs/gnome-vfs-utils.h>
30 #include "ev-marshal.h"
33 #include "ev-selection.h"
34 #include "ev-document-find.h"
35 #include "ev-document-misc.h"
37 #include "ev-job-queue.h"
38 #include "ev-page-cache.h"
39 #include "ev-pixbuf-cache.h"
41 #define EV_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass))
42 #define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW))
43 #define EV_VIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass))
59 SIGNAL_BINDING_ACTIVATED,
69 TARGET_TEXT_BUFFER_CONTENTS
72 static const GtkTargetEntry targets[] = {
73 { "STRING", 0, TARGET_STRING },
74 { "TEXT", 0, TARGET_TEXT },
75 { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
76 { "UTF8_STRING", 0, TARGET_UTF8_STRING },
79 static guint signals[N_SIGNALS];
82 EV_VIEW_CURSOR_NORMAL,
86 EV_VIEW_CURSOR_HIDDEN,
93 } EvViewFindDirection;
95 #define ZOOM_IN_FACTOR 1.2
96 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
98 #define MIN_SCALE 0.05409
101 /* Information for middle clicking and moving around the doc */
109 /* Information for handling selection */
111 gboolean in_selection;
117 SCROLL_TO_KEEP_POSITION,
118 SCROLL_TO_CURRENT_PAGE,
123 GtkWidget parent_instance;
125 EvDocument *document;
131 GtkAdjustment *hadjustment;
132 GtkAdjustment *vadjustment;
137 /* Information for middle clicking and dragging around. */
143 guint selection_update_id;
145 EvViewSelectionMode selection_mode;
146 SelectionInfo selection_info;
151 EvPageCache *page_cache;
152 EvPixbufCache *pixbuf_cache;
158 EvJobRender *current_job;
170 gboolean presentation;
171 EvSizingMode sizing_mode;
173 PendingScroll pending_scroll;
174 gboolean pending_resize;
177 struct _EvViewClass {
178 GtkWidgetClass parent_class;
180 void (*set_scroll_adjustments) (EvView *view,
181 GtkAdjustment *hadjustment,
182 GtkAdjustment *vadjustment);
183 void (*binding_activated) (EvView *view,
184 GtkScrollType scroll,
185 gboolean horizontal);
186 void (*zoom_invalid) (EvView *view);
190 static void scroll_to_current_page (EvView *view,
191 GtkOrientation orientation);
192 static void ev_view_set_scroll_adjustments (EvView *view,
193 GtkAdjustment *hadjustment,
194 GtkAdjustment *vadjustment);
195 static void view_update_range_and_current_page (EvView *view);
196 static void set_scroll_adjustment (EvView *view,
197 GtkOrientation orientation,
198 GtkAdjustment *adjustment);
199 static void ev_view_set_scroll_adjustments (EvView *view,
200 GtkAdjustment *hadjustment,
201 GtkAdjustment *vadjustment);
202 static void add_scroll_binding_keypad (GtkBindingSet *binding_set,
204 GtkScrollType scroll,
205 gboolean horizontal);
206 static void ev_view_binding_activated (EvView *view,
207 GtkScrollType scroll,
208 gboolean horizontal);
209 static void ensure_rectangle_is_visible (EvView *view,
212 /*** Geometry computations ***/
213 static void compute_border (EvView *view,
217 static void get_page_y_offset (EvView *view,
221 static gboolean get_page_extents (EvView *view,
223 GdkRectangle *page_area,
225 static void view_rect_to_doc_rect (EvView *view,
226 GdkRectangle *view_rect,
227 GdkRectangle *page_area,
228 EvRectangle *doc_rect);
229 static void doc_rect_to_view_rect (EvView *view,
231 EvRectangle *doc_rect,
232 GdkRectangle *view_rect);
233 static void find_page_at_location (EvView *view,
239 static void ev_view_queue_draw_page (EvView *view,
243 static EvLink* get_link_at_location (EvView *view,
246 static void go_to_link (EvView *view,
248 static char* status_message_from_link (EvView *view,
251 /*** GtkWidget implementation ***/
252 static void ev_view_size_request_continuous_dual_page (EvView *view,
253 GtkRequisition *requisition);
254 static void ev_view_size_request_continuous (EvView *view,
255 GtkRequisition *requisition);
256 static void ev_view_size_request_dual_page (EvView *view,
257 GtkRequisition *requisition);
258 static void ev_view_size_request_single_page (EvView *view,
259 GtkRequisition *requisition);
260 static void ev_view_size_request (GtkWidget *widget,
261 GtkRequisition *requisition);
262 static void ev_view_size_allocate (GtkWidget *widget,
263 GtkAllocation *allocation);
264 static void ev_view_realize (GtkWidget *widget);
265 static void ev_view_unrealize (GtkWidget *widget);
266 static gboolean ev_view_scroll_event (GtkWidget *widget,
267 GdkEventScroll *event);
268 static gboolean ev_view_expose_event (GtkWidget *widget,
269 GdkEventExpose *event);
270 static gboolean ev_view_button_press_event (GtkWidget *widget,
271 GdkEventButton *event);
272 static gboolean ev_view_motion_notify_event (GtkWidget *widget,
273 GdkEventMotion *event);
274 static gboolean ev_view_button_release_event (GtkWidget *widget,
275 GdkEventButton *event);
276 static gboolean ev_view_leave_notify_event (GtkWidget *widget,
277 GdkEventCrossing *event);
278 static void ev_view_style_set (GtkWidget *widget,
279 GtkStyle *old_style);
282 static guint32 ev_gdk_color_to_rgb (const GdkColor *color);
283 static void draw_rubberband (GtkWidget *widget,
285 const GdkRectangle *rect,
287 static void highlight_find_results (EvView *view,
289 static void draw_one_page (EvView *view,
291 GdkRectangle *page_area,
293 GdkRectangle *expose_area);
296 static void find_changed_cb (EvDocument *document,
299 static void job_finished_cb (EvPixbufCache *pixbuf_cache,
301 static void page_changed_cb (EvPageCache *page_cache,
304 static void on_adjustment_value_changed (GtkAdjustment *adjustment,
308 static void ev_view_finalize (GObject *object);
309 static void ev_view_destroy (GtkObject *object);
310 static void ev_view_set_property (GObject *object,
314 static void ev_view_get_property (GObject *object,
318 static void ev_view_class_init (EvViewClass *class);
319 static void ev_view_init (EvView *view);
321 /*** Zoom and sizing ***/
322 static double zoom_for_size_fit_width (int doc_width,
327 static double zoom_for_size_best_fit (int doc_width,
333 static void ev_view_zoom_for_size_presentation (EvView *view,
336 static void ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
341 static void ev_view_zoom_for_size_continuous (EvView *view,
346 static void ev_view_zoom_for_size_dual_page (EvView *view,
351 static void ev_view_zoom_for_size_single_page (EvView *view,
357 static GdkCursor* ev_view_create_invisible_cursor (void);
358 static void ev_view_set_cursor (EvView *view,
359 EvViewCursor new_cursor);
361 /*** Status messages ***/
362 static void ev_view_set_status (EvView *view,
363 const char *message);
364 static void update_find_status_message (EvView *view);
365 static void ev_view_set_find_status (EvView *view,
366 const char *message);
368 static void jump_to_find_result (EvView *view);
369 static void jump_to_find_page (EvView *view,
370 EvViewFindDirection direction);
373 static void compute_selections (EvView *view,
376 static void clear_selection (EvView *view);
377 static void selection_free (EvViewSelection *selection);
378 static char* get_selected_text (EvView *ev_view);
379 static void ev_view_primary_get_cb (GtkClipboard *clipboard,
380 GtkSelectionData *selection_data,
383 static void ev_view_primary_clear_cb (GtkClipboard *clipboard,
385 static void ev_view_update_primary_selection (EvView *ev_view);
388 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
391 scroll_to_current_page (EvView *view, GtkOrientation orientation)
393 GdkRectangle page_area;
396 if (view->document == NULL) {
400 get_page_extents (view, view->current_page, &page_area, &border);
402 if (orientation == GTK_ORIENTATION_VERTICAL) {
403 if (view->continuous) {
404 gtk_adjustment_clamp_page (view->vadjustment,
405 page_area.y - view->spacing,
406 page_area.y + view->vadjustment->page_size);
408 gtk_adjustment_set_value (view->vadjustment,
409 view->vadjustment->lower);
412 if (view->dual_page) {
413 gtk_adjustment_clamp_page (view->hadjustment,
415 page_area.x + view->hadjustment->page_size);
417 gtk_adjustment_set_value (view->hadjustment,
418 CLAMP (view->hadjustment->value,
419 view->hadjustment->lower,
420 view->hadjustment->upper -
421 view->hadjustment->page_size));
427 view_set_adjustment_values (EvView *view,
428 GtkOrientation orientation)
430 GtkWidget *widget = GTK_WIDGET (view);
431 GtkAdjustment *adjustment;
438 if (orientation == GTK_ORIENTATION_HORIZONTAL) {
439 requisition = widget->requisition.width;
440 allocation = widget->allocation.width;
441 adjustment = view->hadjustment;
443 requisition = widget->requisition.height;
444 allocation = widget->allocation.height;
445 adjustment = view->vadjustment;
452 switch (view->pending_scroll) {
453 case SCROLL_TO_KEEP_POSITION:
454 factor = (adjustment->value) / adjustment->upper;
456 case SCROLL_TO_CURRENT_PAGE:
458 case SCROLL_TO_CENTER:
459 factor = (adjustment->value + adjustment->page_size * 0.5) / adjustment->upper;
463 adjustment->page_size = allocation;
464 adjustment->step_increment = allocation * 0.1;
465 adjustment->page_increment = allocation * 0.9;
466 adjustment->lower = 0;
467 adjustment->upper = MAX (allocation, requisition);
470 * We add 0.5 to the values before to average out our rounding errors.
472 switch (view->pending_scroll) {
473 case SCROLL_TO_KEEP_POSITION:
474 new_value = CLAMP (adjustment->upper * factor + 0.5, 0, adjustment->upper - adjustment->page_size);
475 gtk_adjustment_set_value (adjustment, (int)new_value);
477 case SCROLL_TO_CURRENT_PAGE:
478 scroll_to_current_page (view, orientation);
480 case SCROLL_TO_CENTER:
481 new_value = CLAMP (adjustment->upper * factor - adjustment->page_size * 0.5 + 0.5,
482 0, adjustment->upper - adjustment->page_size);
483 gtk_adjustment_set_value (adjustment, (int)new_value);
487 gtk_adjustment_changed (adjustment);
491 view_update_range_and_current_page (EvView *view)
493 if (view->pending_scroll != SCROLL_TO_KEEP_POSITION)
496 /* Presentation trumps all other modes */
497 if (view->presentation) {
498 view->start_page = view->current_page;
499 view->end_page = view->current_page;
500 } else if (view->continuous) {
501 GdkRectangle current_area, unused, page_area;
504 gboolean found = FALSE;
507 if (!(view->vadjustment && view->hadjustment))
510 current_area.x = view->hadjustment->value;
511 current_area.width = view->hadjustment->upper;
512 current_area.y = view->vadjustment->value;
513 current_area.height = view->vadjustment->page_size;
515 for (i = 0; i < ev_page_cache_get_n_pages (view->page_cache); i++) {
517 get_page_extents (view, i, &page_area, &border);
519 if (gdk_rectangle_intersect (¤t_area, &page_area, &unused)) {
521 view->start_page = i;
531 current_page = ev_page_cache_get_current_page (view->page_cache);
533 if (current_page < view->start_page || current_page > view->end_page) {
534 view->current_page = view->start_page;
535 ev_page_cache_set_current_page (view->page_cache, view->start_page);
538 if (view->dual_page) {
539 if (view->current_page % 2 == 0) {
540 view->start_page = view->current_page;
541 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache))
542 view->end_page = view->start_page + 1;
544 view->start_page = view->current_page - 1;
545 view->end_page = view->current_page;
548 view->start_page = view->current_page;
549 view->end_page = view->current_page;
553 ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
558 view->selection_info.selections);
562 set_scroll_adjustment (EvView *view,
563 GtkOrientation orientation,
564 GtkAdjustment *adjustment)
566 GtkAdjustment **to_set;
568 if (orientation == GTK_ORIENTATION_HORIZONTAL)
569 to_set = &view->hadjustment;
571 to_set = &view->vadjustment;
573 if (*to_set != adjustment) {
575 g_signal_handlers_disconnect_by_func (*to_set,
576 (gpointer) on_adjustment_value_changed,
578 g_object_unref (*to_set);
581 *to_set = adjustment;
582 view_set_adjustment_values (view, orientation);
585 g_object_ref (*to_set);
586 g_signal_connect (*to_set, "value_changed",
587 G_CALLBACK (on_adjustment_value_changed), view);
593 ev_view_set_scroll_adjustments (EvView *view,
594 GtkAdjustment *hadjustment,
595 GtkAdjustment *vadjustment)
597 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
598 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
600 on_adjustment_value_changed (NULL, view);
604 add_scroll_binding_keypad (GtkBindingSet *binding_set,
606 GtkScrollType scroll,
609 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
611 gtk_binding_entry_add_signal (binding_set, keyval, 0,
612 "binding_activated", 2,
613 GTK_TYPE_SCROLL_TYPE, scroll,
614 G_TYPE_BOOLEAN, horizontal);
615 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
616 "binding_activated", 2,
617 GTK_TYPE_SCROLL_TYPE, scroll,
618 G_TYPE_BOOLEAN, horizontal);
622 ev_view_scroll (EvView *view,
625 GtkAdjustment *adjustment;
626 double value, increment;
627 gboolean first_page = FALSE;
628 gboolean last_page = FALSE;
630 /* Assign values for increment and vertical adjustment */
631 adjustment = view->vadjustment;
632 increment = adjustment->page_size * 0.75;
633 value = adjustment->value;
635 /* Assign boolean for first and last page */
636 if (view->current_page == 0)
638 if (view->current_page == ev_page_cache_get_n_pages (view->page_cache) - 1)
642 case EV_SCROLL_PAGE_BACKWARD:
643 /* Do not jump backwards if at the first page */
644 if (value == (adjustment->lower) && first_page) {
646 /* At the top of a page, assign the upper bound limit of previous page */
647 } else if (value == (adjustment->lower)) {
648 value = adjustment->upper - adjustment->page_size;
649 ev_page_cache_set_current_page (view->page_cache, view->current_page - 1);
650 /* Jump to the top */
652 value = MAX (value - increment, adjustment->lower);
655 case EV_SCROLL_PAGE_FORWARD:
656 /* Do not jump forward if at the last page */
657 if (value == (adjustment->upper - adjustment->page_size) && last_page) {
659 /* At the bottom of a page, assign the lower bound limit of next page */
660 } else if (value == (adjustment->upper - adjustment->page_size)) {
662 ev_page_cache_set_current_page (view->page_cache, view->current_page + 1);
663 /* Jump to the bottom */
665 value = MIN (value + increment, adjustment->upper - adjustment->page_size);
672 gtk_adjustment_set_value (adjustment, value);
676 ev_view_binding_activated (EvView *view,
677 GtkScrollType scroll,
680 GtkAdjustment *adjustment;
683 if (view->presentation) {
685 case GTK_SCROLL_STEP_BACKWARD:
686 ev_page_cache_prev_page (view->page_cache);
688 case GTK_SCROLL_STEP_FORWARD:
689 ev_page_cache_next_page (view->page_cache);
698 adjustment = view->hadjustment;
700 adjustment = view->vadjustment;
703 value = adjustment->value;
706 case GTK_SCROLL_STEP_BACKWARD:
707 value -= adjustment->step_increment;
709 case GTK_SCROLL_STEP_FORWARD:
710 value += adjustment->step_increment;
716 value = CLAMP (value, adjustment->lower,
717 adjustment->upper - adjustment->page_size);
719 gtk_adjustment_set_value (adjustment, value);
725 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
727 GtkWidget *widget = GTK_WIDGET (view);
728 GtkAdjustment *adjustment;
731 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
733 adjustment = view->vadjustment;
735 if (rect->y < adjustment->value) {
736 value = MAX (adjustment->lower, rect->y - MARGIN);
737 gtk_adjustment_set_value (view->vadjustment, value);
738 } else if (rect->y + rect->height >
739 adjustment->value + widget->allocation.height) {
740 value = MIN (adjustment->upper, rect->y + rect->height -
741 widget->allocation.height + MARGIN);
742 gtk_adjustment_set_value (view->vadjustment, value);
745 adjustment = view->hadjustment;
747 if (rect->x < adjustment->value) {
748 value = MAX (adjustment->lower, rect->x - MARGIN);
749 gtk_adjustment_set_value (view->hadjustment, value);
750 } else if (rect->x + rect->height >
751 adjustment->value + widget->allocation.width) {
752 value = MIN (adjustment->upper, rect->x + rect->width -
753 widget->allocation.width + MARGIN);
754 gtk_adjustment_set_value (view->hadjustment, value);
758 /*** Geometry computations ***/
761 compute_border (EvView *view, int width, int height, GtkBorder *border)
763 if (view->presentation) {
769 ev_document_misc_get_page_border_size (width, height, border);
774 get_page_y_offset (EvView *view, int page, double zoom, int *y_offset)
776 int max_width, offset;
779 g_return_if_fail (y_offset != NULL);
781 ev_page_cache_get_max_width (view->page_cache, view->rotation, zoom, &max_width);
783 compute_border (view, max_width, max_width, &border);
785 if (view->dual_page) {
786 ev_page_cache_get_height_to_page (view->page_cache, page,
787 view->rotation, zoom, NULL, &offset);
788 offset += (page / 2 + 1) * view->spacing + (page / 2) * (border.top + border.bottom);
790 ev_page_cache_get_height_to_page (view->page_cache, page,
791 view->rotation, zoom, &offset, NULL);
792 offset += (page + 1) * view->spacing + page * (border.top + border.bottom);
800 get_page_extents (EvView *view,
802 GdkRectangle *page_area,
808 widget = GTK_WIDGET (view);
810 /* Get the size of the page */
811 ev_page_cache_get_size (view->page_cache, page,
815 compute_border (view, width, height, border);
816 page_area->width = width + border->left + border->right;
817 page_area->height = height + border->top + border->bottom;
819 if (view->presentation) {
820 page_area->x = (MAX (0, widget->allocation.width - width))/2;
821 page_area->y = (MAX (0, widget->allocation.height - height))/2;
822 } else if (view->continuous) {
826 ev_page_cache_get_max_width (view->page_cache, view->rotation,
827 view->scale, &max_width);
828 max_width = max_width + border->left + border->right;
829 /* Get the location of the bounding box */
830 if (view->dual_page) {
831 x = view->spacing + (page % 2) * (max_width + view->spacing);
832 x = x + MAX (0, widget->allocation.width - (max_width * 2 + view->spacing * 3)) / 2;
834 x = x + (max_width - width - border->left - border->right);
837 x = x + MAX (0, widget->allocation.width - (width + view->spacing * 2)) / 2;
840 get_page_y_offset (view, page, view->scale, &y);
846 if (view->dual_page) {
847 gint width_2, height_2;
848 gint max_width = width;
849 gint max_height = height;
850 GtkBorder overall_border;
853 other_page = page ^ 1;
855 /* First, we get the bounding box of the two pages */
856 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
857 ev_page_cache_get_size (view->page_cache,
861 &width_2, &height_2);
864 if (height_2 > height)
865 max_height = height_2;
867 compute_border (view, max_width, max_height, &overall_border);
869 /* Find the offsets */
873 /* Adjust for being the left or right page */
875 x = x + max_width - width;
877 x = x + (max_width + overall_border.left + overall_border.right) + view->spacing;
879 y = y + (max_height - height)/2;
881 /* Adjust for extra allocation */
882 x = x + MAX (0, widget->allocation.width -
883 ((max_width + overall_border.left + overall_border.right) * 2 + view->spacing * 3))/2;
884 y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
889 /* Adjust for extra allocation */
890 x = x + MAX (0, widget->allocation.width - (width + border->left + border->right + view->spacing * 2))/2;
891 y = y + MAX (0, widget->allocation.height - (height + border->top + border->bottom + view->spacing * 2))/2;
902 view_point_to_doc_point (EvView *view,
903 GdkPoint *view_point,
904 GdkRectangle *page_area,
908 *doc_point_x = (double) (view_point->x - page_area->x) / view->scale;
909 *doc_point_y = (double) (view_point->y - page_area->y) / view->scale;
913 view_rect_to_doc_rect (EvView *view,
914 GdkRectangle *view_rect,
915 GdkRectangle *page_area,
916 EvRectangle *doc_rect)
918 doc_rect->x1 = (double) (view_rect->x - page_area->x) / view->scale;
919 doc_rect->y1 = (double) (view_rect->y - page_area->y) / view->scale;
920 doc_rect->x2 = doc_rect->x1 + (double) view_rect->width / view->scale;
921 doc_rect->y2 = doc_rect->y1 + (double) view_rect->height / view->scale;
925 doc_rect_to_view_rect (EvView *view,
927 EvRectangle *doc_rect,
928 GdkRectangle *view_rect)
930 GdkRectangle page_area;
935 ev_page_cache_get_size (view->page_cache, page,
940 if (view->rotation == 0) {
943 w = doc_rect->x2 - doc_rect->x1;
944 h = doc_rect->y2 - doc_rect->y1;
945 } else if (view->rotation == 90) {
946 x = width - doc_rect->y2;
948 w = doc_rect->y2 - doc_rect->y1;
949 h = doc_rect->x2 - doc_rect->x1;
950 } else if (view->rotation == 180) {
951 x = width - doc_rect->x2;
952 y = height - doc_rect->y2;
953 w = doc_rect->x2 - doc_rect->x1;
954 h = doc_rect->y2 - doc_rect->y1;
955 } else if (view->rotation == 270) {
957 y = height - doc_rect->x2;
958 w = doc_rect->y2 - doc_rect->y1;
959 h = doc_rect->x2 - doc_rect->x1;
961 g_assert_not_reached ();
964 get_page_extents (view, page, &page_area, &border);
966 view_rect->x = x * view->scale + page_area.x;
967 view_rect->y = y * view->scale + page_area.y;
968 view_rect->width = w * view->scale;
969 view_rect->height = h * view->scale;
973 find_page_at_location (EvView *view,
982 if (view->document == NULL)
989 for (i = view->start_page; i <= view->end_page; i++) {
990 GdkRectangle page_area;
993 if (! get_page_extents (view, i, &page_area, &border))
996 if ((x >= page_area.x + border.left) &&
997 (x < page_area.x + page_area.width - border.right) &&
998 (y >= page_area.y + border.top) &&
999 (y < page_area.y + page_area.height - border.bottom)) {
1001 *x_offset = x - (page_area.x + border.left);
1002 *y_offset = y - (page_area.y + border.top);
1011 ev_view_queue_draw_page (EvView *view,
1015 gtk_widget_queue_draw (GTK_WIDGET (view));
1019 location_in_text (EvView *view,
1025 gint x_offset = 0, y_offset = 0;
1027 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1032 region = ev_pixbuf_cache_get_text_mapping (view->pixbuf_cache, page);
1035 return gdk_region_point_in (region, x_offset / view->scale, y_offset / view->scale);
1042 get_link_at_location (EvView *view,
1047 gint x_offset = 0, y_offset = 0;
1048 GList *link_mapping;
1050 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1055 link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
1058 return ev_link_mapping_find (link_mapping, x_offset / view->scale, y_offset / view->scale);
1063 /* FIXME: standardize this sometime */
1065 go_to_link (EvView *view, EvLink *link)
1071 type = ev_link_get_link_type (link);
1074 case EV_LINK_TYPE_TITLE:
1076 case EV_LINK_TYPE_PAGE:
1077 page = ev_link_get_page (link);
1078 ev_page_cache_set_current_page (view->page_cache, page);
1080 case EV_LINK_TYPE_EXTERNAL_URI:
1081 uri = ev_link_get_uri (link);
1082 gnome_vfs_url_show (uri);
1088 status_message_from_link (EvView *view, EvLink *link)
1094 type = ev_link_get_link_type (link);
1097 case EV_LINK_TYPE_TITLE:
1098 if (ev_link_get_title (link))
1099 msg = g_strdup (ev_link_get_title (link));
1101 case EV_LINK_TYPE_PAGE:
1102 page_label = ev_page_cache_get_page_label (view->page_cache, ev_link_get_page (link));
1103 msg = g_strdup_printf (_("Go to page %s"), page_label);
1104 g_free (page_label);
1106 case EV_LINK_TYPE_EXTERNAL_URI:
1107 msg = g_strdup (ev_link_get_uri (link));
1117 /*** GtkWidget implementation ***/
1120 ev_view_size_request_continuous_dual_page (EvView *view,
1121 GtkRequisition *requisition)
1127 ev_page_cache_get_max_width (view->page_cache, view->rotation,
1128 view->scale, &max_width);
1129 compute_border (view, max_width, max_width, &border);
1131 n_pages = ev_page_cache_get_n_pages (view->page_cache) + 1;
1133 requisition->width = (max_width + border.left + border.right) * 2 + (view->spacing * 3);
1134 get_page_y_offset (view, n_pages, view->scale, &requisition->height);
1136 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1137 requisition->width = 1;
1138 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1139 requisition->width = 1;
1140 /* FIXME: This could actually be set on one page docs or docs
1141 * with a strange aspect ratio. */
1142 /* requisition->height = 1;*/
1147 ev_view_size_request_continuous (EvView *view,
1148 GtkRequisition *requisition)
1155 ev_page_cache_get_max_width (view->page_cache, view->rotation,
1156 view->scale, &max_width);
1157 n_pages = ev_page_cache_get_n_pages (view->page_cache);
1158 compute_border (view, max_width, max_width, &border);
1160 requisition->width = max_width + (view->spacing * 2) + border.left + border.right;
1161 get_page_y_offset (view, n_pages, view->scale, &requisition->height);
1163 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1164 requisition->width = 1;
1165 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1166 requisition->width = 1;
1167 /* FIXME: This could actually be set on one page docs or docs
1168 * with a strange aspect ratio. */
1169 /* requisition->height = 1;*/
1174 ev_view_size_request_dual_page (EvView *view,
1175 GtkRequisition *requisition)
1180 /* Find the largest of the two. */
1181 ev_page_cache_get_size (view->page_cache,
1186 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache)) {
1187 gint width_2, height_2;
1188 ev_page_cache_get_size (view->page_cache,
1189 view->current_page + 1,
1192 &width_2, &height_2);
1193 if (width_2 > width) {
1198 compute_border (view, width, height, &border);
1200 requisition->width = ((width + border.left + border.right) * 2) +
1201 (view->spacing * 3);
1202 requisition->height = (height + border.top + border.bottom) +
1203 (view->spacing * 2);
1205 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1206 requisition->width = 1;
1207 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1208 requisition->width = 1;
1209 requisition->height = 1;
1214 ev_view_size_request_single_page (EvView *view,
1215 GtkRequisition *requisition)
1220 ev_page_cache_get_size (view->page_cache,
1225 compute_border (view, width, height, &border);
1227 requisition->width = width + border.left + border.right + (2 * view->spacing);
1228 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1230 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1231 requisition->width = 1;
1232 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1233 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1234 requisition->width = 1;
1235 requisition->height = 1;
1240 ev_view_size_request (GtkWidget *widget,
1241 GtkRequisition *requisition)
1243 EvView *view = EV_VIEW (widget);
1245 if (view->document == NULL) {
1246 requisition->width = 1;
1247 requisition->height = 1;
1251 if (view->presentation) {
1252 requisition->width = 1;
1253 requisition->height = 1;
1257 if (view->continuous && view->dual_page)
1258 ev_view_size_request_continuous_dual_page (view, requisition);
1259 else if (view->continuous)
1260 ev_view_size_request_continuous (view, requisition);
1261 else if (view->dual_page)
1262 ev_view_size_request_dual_page (view, requisition);
1264 ev_view_size_request_single_page (view, requisition);
1268 ev_view_size_allocate (GtkWidget *widget,
1269 GtkAllocation *allocation)
1271 EvView *view = EV_VIEW (widget);
1273 if (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
1274 view->sizing_mode == EV_SIZING_BEST_FIT) {
1276 g_signal_emit (view, signals[SIGNAL_ZOOM_INVALID], 0);
1278 ev_view_size_request (widget, &widget->requisition);
1281 view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
1282 view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
1284 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
1285 view->pending_resize = FALSE;
1288 view_update_range_and_current_page (view);
1290 GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
1294 ev_view_realize (GtkWidget *widget)
1296 EvView *view = EV_VIEW (widget);
1297 GdkWindowAttr attributes;
1299 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
1302 attributes.window_type = GDK_WINDOW_CHILD;
1303 attributes.wclass = GDK_INPUT_OUTPUT;
1304 attributes.visual = gtk_widget_get_visual (widget);
1305 attributes.colormap = gtk_widget_get_colormap (widget);
1307 attributes.x = widget->allocation.x;
1308 attributes.y = widget->allocation.y;
1309 attributes.width = widget->allocation.width;
1310 attributes.height = widget->allocation.height;
1311 attributes.event_mask = GDK_EXPOSURE_MASK |
1312 GDK_BUTTON_PRESS_MASK |
1313 GDK_BUTTON_RELEASE_MASK |
1315 GDK_KEY_PRESS_MASK |
1316 GDK_POINTER_MOTION_MASK |
1317 GDK_LEAVE_NOTIFY_MASK;
1319 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1321 GDK_WA_X | GDK_WA_Y |
1324 gdk_window_set_user_data (widget->window, widget);
1325 widget->style = gtk_style_attach (widget->style, widget->window);
1327 if (view->presentation)
1328 gdk_window_set_background (widget->window, &widget->style->black);
1330 gdk_window_set_background (widget->window, &widget->style->mid [GTK_STATE_NORMAL]);
1334 ev_view_unrealize (GtkWidget *widget)
1336 GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
1340 ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event)
1342 EvView *view = EV_VIEW (widget);
1344 if ((event->state & GDK_CONTROL_MASK) != 0) {
1346 ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1348 if (event->direction == GDK_SCROLL_UP ||
1349 event->direction == GDK_SCROLL_LEFT) {
1350 if (ev_view_can_zoom_in (view)) {
1351 ev_view_zoom_in (view);
1354 if (ev_view_can_zoom_out (view)) {
1355 ev_view_zoom_out (view);
1361 if ((event->state & GDK_SHIFT_MASK) != 0) {
1362 if (event->direction == GDK_SCROLL_UP)
1363 event->direction = GDK_SCROLL_LEFT;
1364 if (event->direction == GDK_SCROLL_DOWN)
1365 event->direction = GDK_SCROLL_RIGHT;
1371 static EvViewSelection *
1372 find_selection_for_page (EvView *view,
1377 for (list = view->selection_info.selections; list != NULL; list = list->next) {
1378 EvViewSelection *selection;
1380 selection = (EvViewSelection *) list->data;
1382 if (selection->page == page)
1390 ev_view_expose_event (GtkWidget *widget,
1391 GdkEventExpose *event)
1393 EvView *view = EV_VIEW (widget);
1396 if (view->document == NULL)
1399 for (i = view->start_page; i <= view->end_page; i++) {
1400 GdkRectangle page_area;
1403 if (!get_page_extents (view, i, &page_area, &border))
1406 page_area.x -= view->scroll_x;
1407 page_area.y -= view->scroll_y;
1409 draw_one_page (view, i, &page_area, &border, &(event->area));
1411 if (EV_IS_DOCUMENT_FIND (view->document))
1412 highlight_find_results (view, i);
1419 ev_view_button_press_event (GtkWidget *widget,
1420 GdkEventButton *event)
1422 EvView *view = EV_VIEW (widget);
1424 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
1425 gtk_widget_grab_focus (widget);
1428 view->pressed_button = event->button;
1430 switch (event->button) {
1432 if (view->selection_info.selections) {
1433 clear_selection (view);
1434 gtk_widget_queue_draw (widget);
1437 view->selection_info.start.x = event->x + view->scroll_x;
1438 view->selection_info.start.y = event->y + view->scroll_y;
1441 /* use root coordinates as reference point because
1442 * scrolling changes window relative coordinates */
1443 view->drag_info.start.x = event->x_root;
1444 view->drag_info.start.y = event->y_root;
1445 view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment);
1446 view->drag_info.vadj = gtk_adjustment_get_value (view->vadjustment);
1448 ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
1458 selection_update_idle_cb (EvView *view)
1461 point.x = view->motion_x;
1462 point.y = view->motion_y;
1463 compute_selections (view, &view->selection_info.start, &point);
1465 view->selection_update_id = 0;
1470 ev_view_motion_notify_event (GtkWidget *widget,
1471 GdkEventMotion *event)
1473 EvView *view = EV_VIEW (widget);
1475 if (!view->document)
1478 if (view->pressed_button == 1) {
1479 view->selection_info.in_selection = TRUE;
1480 view->motion_x = event->x + view->scroll_x;
1481 view->motion_y = event->y + view->scroll_y;
1483 /* Queue an idle to handle the motion. We do this because
1484 * handling any selection events in the motion is probably going
1485 * to be slower than new motion events reach us. This means that */
1487 if (! view->selection_update_id)
1488 view->selection_update_id = g_idle_add ((GSourceFunc)selection_update_idle_cb, view);
1491 } else if (view->pressed_button == 2) {
1492 if (!view->drag_info.in_drag) {
1495 start = gtk_drag_check_threshold (widget,
1496 view->drag_info.start.x,
1497 view->drag_info.start.y,
1500 view->drag_info.in_drag = start;
1503 if (view->drag_info.in_drag) {
1505 gdouble dhadj_value, dvadj_value;
1507 dx = event->x_root - view->drag_info.start.x;
1508 dy = event->y_root - view->drag_info.start.y;
1510 dhadj_value = view->hadjustment->page_size *
1511 (gdouble)dx / widget->allocation.width;
1512 dvadj_value = view->vadjustment->page_size *
1513 (gdouble)dy / widget->allocation.height;
1515 /* clamp scrolling to visible area */
1516 gtk_adjustment_set_value (view->hadjustment,
1517 MIN(view->drag_info.hadj - dhadj_value,
1518 view->hadjustment->upper -
1519 view->hadjustment->page_size));
1520 gtk_adjustment_set_value (view->vadjustment,
1521 MIN(view->drag_info.vadj - dvadj_value,
1522 view->vadjustment->upper -
1523 view->vadjustment->page_size));
1527 } else if (view->pressed_button <= 0) {
1530 link = get_link_at_location (view, event->x + view->scroll_x, event->y + view->scroll_y);
1534 msg = status_message_from_link (view, link);
1535 ev_view_set_status (view, msg);
1536 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
1538 } else if (location_in_text (view, event->x + view->scroll_x, event->y + view->scroll_y)) {
1539 ev_view_set_cursor (view, EV_VIEW_CURSOR_IBEAM);
1541 ev_view_set_status (view, NULL);
1542 if (view->cursor == EV_VIEW_CURSOR_LINK ||
1543 view->cursor == EV_VIEW_CURSOR_IBEAM)
1544 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1553 ev_view_button_release_event (GtkWidget *widget,
1554 GdkEventButton *event)
1556 EvView *view = EV_VIEW (widget);
1558 if (view->pressed_button == 2) {
1559 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1562 view->pressed_button = -1;
1563 view->drag_info.in_drag = FALSE;
1565 if (view->selection_info.selections) {
1566 ev_view_update_primary_selection (view);
1567 } else if (view->document) {
1570 link = get_link_at_location (view, event->x + view->scroll_x, event->y + view->scroll_y);
1572 go_to_link (view, link);
1580 ev_view_focus_in (GtkWidget *widget,
1581 GdkEventFocus *event)
1583 if (EV_VIEW (widget)->pixbuf_cache)
1584 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
1585 gtk_widget_queue_draw (widget);
1591 ev_view_focus_out (GtkWidget *widget,
1592 GdkEventFocus *event)
1594 if (EV_VIEW (widget)->pixbuf_cache)
1595 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
1596 gtk_widget_queue_draw (widget);
1602 ev_view_leave_notify_event (GtkWidget *widget, GdkEventCrossing *event)
1604 EvView *view = EV_VIEW (widget);
1606 ev_view_set_status (view, NULL);
1608 if (view->cursor == EV_VIEW_CURSOR_LINK ||
1609 view->cursor == EV_VIEW_CURSOR_IBEAM)
1610 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1616 ev_view_style_set (GtkWidget *widget,
1617 GtkStyle *old_style)
1619 if (EV_VIEW (widget)->pixbuf_cache)
1620 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
1622 GTK_WIDGET_CLASS (ev_view_parent_class)->style_set (widget, old_style);
1629 ev_gdk_color_to_rgb (const GdkColor *color)
1632 result = (0xff0000 | (color->red & 0xff00));
1634 result |= ((color->green & 0xff00) | (color->blue >> 8));
1639 draw_rubberband (GtkWidget *widget, GdkWindow *window,
1640 const GdkRectangle *rect, guchar alpha)
1644 GdkColor *fill_color_gdk;
1647 fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
1648 fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
1650 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
1651 rect->width, rect->height);
1652 gdk_pixbuf_fill (pixbuf, fill_color);
1654 gdk_draw_pixbuf (window, NULL, pixbuf,
1656 rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
1657 rect->width, rect->height,
1658 GDK_RGB_DITHER_NONE,
1661 g_object_unref (pixbuf);
1663 gc = gdk_gc_new (window);
1664 gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
1665 gdk_draw_rectangle (window, gc, FALSE,
1666 rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
1669 g_object_unref (gc);
1671 gdk_color_free (fill_color_gdk);
1676 highlight_find_results (EvView *view, int page)
1678 EvDocumentFind *find;
1681 g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document));
1683 find = EV_DOCUMENT_FIND (view->document);
1685 results = ev_document_find_get_n_results (find, page);
1687 for (i = 0; i < results; i++) {
1688 EvRectangle rectangle;
1689 GdkRectangle view_rectangle;
1692 if (i == view->find_result && page == view->find_page) {
1698 ev_document_find_get_result (find, page,
1700 doc_rect_to_view_rect (view, page, &rectangle, &view_rectangle);
1701 draw_rubberband (GTK_WIDGET (view), GTK_WIDGET(view)->window,
1702 &view_rectangle, alpha);
1707 draw_one_page (EvView *view,
1709 GdkRectangle *page_area,
1711 GdkRectangle *expose_area)
1714 GdkPixbuf *current_pixbuf;
1715 GdkRectangle overlap;
1716 GdkRectangle real_page_area;
1717 EvViewSelection *selection;
1719 g_assert (view->document);
1720 if (! gdk_rectangle_intersect (page_area, expose_area, &overlap))
1723 selection = find_selection_for_page (view, page);
1724 ev_page_cache_get_size (view->page_cache,
1725 page, view->rotation,
1728 /* Render the document itself */
1729 real_page_area = *page_area;
1731 real_page_area.x += border->left;
1732 real_page_area.y += border->top;
1733 real_page_area.width -= (border->left + border->right);
1734 real_page_area.height -= (border->top + border->bottom);
1736 ev_document_misc_paint_one_page (GTK_WIDGET(view)->window,
1740 if (gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) {
1741 GdkPixbuf *selection_pixbuf = NULL;
1742 GdkPixbuf *scaled_image;
1743 GdkPixbuf *scaled_selection;
1745 current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, page);
1747 /* Get the selection pixbuf iff we have something to draw */
1748 if (current_pixbuf && view->selection_mode == EV_VIEW_SELECTION_TEXT && selection)
1749 selection_pixbuf = ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache,
1754 if (current_pixbuf == NULL)
1755 scaled_image = NULL;
1756 else if (width == gdk_pixbuf_get_width (current_pixbuf) &&
1757 height == gdk_pixbuf_get_height (current_pixbuf))
1758 scaled_image = g_object_ref (current_pixbuf);
1760 /* FIXME: We don't want to scale the whole area, just the right
1762 scaled_image = gdk_pixbuf_scale_simple (current_pixbuf,
1764 GDK_INTERP_NEAREST);
1766 if (selection_pixbuf == NULL)
1767 scaled_selection = NULL;
1768 else if (width == gdk_pixbuf_get_width (selection_pixbuf) &&
1769 height == gdk_pixbuf_get_height (selection_pixbuf))
1770 scaled_selection = g_object_ref (selection_pixbuf);
1772 /* FIXME: We don't want to scale the whole area, just the right
1774 scaled_selection = gdk_pixbuf_scale_simple (selection_pixbuf,
1776 GDK_INTERP_NEAREST);
1779 gdk_draw_pixbuf (GTK_WIDGET(view)->window,
1780 GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
1782 overlap.x - real_page_area.x,
1783 overlap.y - real_page_area.y,
1784 overlap.x, overlap.y,
1785 overlap.width, overlap.height,
1786 GDK_RGB_DITHER_NORMAL,
1788 g_object_unref (scaled_image);
1791 if (scaled_selection) {
1792 gdk_draw_pixbuf (GTK_WIDGET(view)->window,
1793 GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
1795 overlap.x - real_page_area.x,
1796 overlap.y - real_page_area.y,
1797 overlap.x, overlap.y,
1798 overlap.width, overlap.height,
1799 GDK_RGB_DITHER_NORMAL,
1801 g_object_unref (scaled_selection);
1806 /*** GObject functions ***/
1809 ev_view_finalize (GObject *object)
1811 EvView *view = EV_VIEW (object);
1815 g_free (view->status);
1816 g_free (view->find_status);
1818 clear_selection (view);
1820 G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
1824 ev_view_destroy (GtkObject *object)
1826 EvView *view = EV_VIEW (object);
1828 if (view->document) {
1829 g_object_unref (view->document);
1830 view->document = NULL;
1832 if (view->pixbuf_cache) {
1833 g_object_unref (view->pixbuf_cache);
1834 view->pixbuf_cache = NULL;
1836 ev_view_set_scroll_adjustments (view, NULL, NULL);
1838 GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
1842 ev_view_set_property (GObject *object,
1844 const GValue *value,
1847 EvView *view = EV_VIEW (object);
1851 case PROP_CONTINUOUS:
1852 ev_view_set_continuous (view, g_value_get_boolean (value));
1854 case PROP_DUAL_PAGE:
1855 ev_view_set_dual_page (view, g_value_get_boolean (value));
1857 case PROP_FULLSCREEN:
1858 ev_view_set_fullscreen (view, g_value_get_boolean (value));
1860 case PROP_PRESENTATION:
1861 ev_view_set_presentation (view, g_value_get_boolean (value));
1863 case PROP_SIZING_MODE:
1864 ev_view_set_sizing_mode (view, g_value_get_enum (value));
1867 ev_view_set_zoom (view, g_value_get_double (value), FALSE);
1870 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1875 ev_view_get_property (GObject *object,
1880 EvView *view = EV_VIEW (object);
1885 g_value_set_string (value, view->status);
1887 case PROP_FIND_STATUS:
1888 g_value_set_string (value, view->status);
1890 case PROP_CONTINUOUS:
1891 g_value_set_boolean (value, view->continuous);
1893 case PROP_DUAL_PAGE:
1894 g_value_set_boolean (value, view->dual_page);
1896 case PROP_FULLSCREEN:
1897 g_value_set_boolean (value, view->fullscreen);
1899 case PROP_PRESENTATION:
1900 g_value_set_boolean (value, view->presentation);
1902 case PROP_SIZING_MODE:
1903 g_value_set_enum (value, view->sizing_mode);
1906 g_value_set_double (value, view->scale);
1909 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1914 ev_view_class_init (EvViewClass *class)
1916 GObjectClass *object_class = G_OBJECT_CLASS (class);
1917 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
1918 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
1919 GtkBindingSet *binding_set;
1921 object_class->finalize = ev_view_finalize;
1922 object_class->set_property = ev_view_set_property;
1923 object_class->get_property = ev_view_get_property;
1925 widget_class->expose_event = ev_view_expose_event;
1926 widget_class->button_press_event = ev_view_button_press_event;
1927 widget_class->motion_notify_event = ev_view_motion_notify_event;
1928 widget_class->button_release_event = ev_view_button_release_event;
1929 widget_class->focus_in_event = ev_view_focus_in;
1930 widget_class->focus_out_event = ev_view_focus_out;
1931 widget_class->size_request = ev_view_size_request;
1932 widget_class->size_allocate = ev_view_size_allocate;
1933 widget_class->realize = ev_view_realize;
1934 widget_class->unrealize = ev_view_unrealize;
1935 widget_class->scroll_event = ev_view_scroll_event;
1936 widget_class->leave_notify_event = ev_view_leave_notify_event;
1937 widget_class->style_set = ev_view_style_set;
1938 gtk_object_class->destroy = ev_view_destroy;
1940 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
1941 class->binding_activated = ev_view_binding_activated;
1943 widget_class->set_scroll_adjustments_signal =
1944 g_signal_new ("set-scroll-adjustments",
1945 G_OBJECT_CLASS_TYPE (object_class),
1946 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1947 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
1949 ev_marshal_VOID__OBJECT_OBJECT,
1951 GTK_TYPE_ADJUSTMENT,
1952 GTK_TYPE_ADJUSTMENT);
1954 signals[SIGNAL_BINDING_ACTIVATED] = g_signal_new ("binding_activated",
1955 G_TYPE_FROM_CLASS (object_class),
1956 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1957 G_STRUCT_OFFSET (EvViewClass, binding_activated),
1959 ev_marshal_VOID__ENUM_BOOLEAN,
1961 GTK_TYPE_SCROLL_TYPE,
1964 signals[SIGNAL_ZOOM_INVALID] = g_signal_new ("zoom-invalid",
1965 G_TYPE_FROM_CLASS (object_class),
1966 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1967 G_STRUCT_OFFSET (EvViewClass, zoom_invalid),
1969 ev_marshal_VOID__VOID,
1970 G_TYPE_NONE, 0, G_TYPE_NONE);
1972 g_object_class_install_property (object_class,
1974 g_param_spec_string ("status",
1976 "The status message",
1980 g_object_class_install_property (object_class,
1982 g_param_spec_string ("find-status",
1983 "Find Status Message",
1984 "The find status message",
1988 g_object_class_install_property (object_class,
1990 g_param_spec_boolean ("continuous",
1992 "Continuous scrolling mode",
1994 G_PARAM_READWRITE));
1996 g_object_class_install_property (object_class,
1998 g_param_spec_boolean ("dual-page",
2000 "Two pages visible at once",
2002 G_PARAM_READWRITE));
2003 g_object_class_install_property (object_class,
2005 g_param_spec_boolean ("fullscreen",
2007 "Draw page in a fullscreen fashion",
2009 G_PARAM_READWRITE));
2010 g_object_class_install_property (object_class,
2012 g_param_spec_boolean ("presentation",
2014 "Draw page in presentation mode",
2016 G_PARAM_READWRITE));
2018 g_object_class_install_property (object_class,
2020 g_param_spec_enum ("sizing-mode",
2023 EV_TYPE_SIZING_MODE,
2024 EV_SIZING_FIT_WIDTH,
2025 G_PARAM_READWRITE));
2027 g_object_class_install_property (object_class,
2029 g_param_spec_double ("zoom",
2035 G_PARAM_READWRITE));
2037 binding_set = gtk_binding_set_by_class (class);
2039 add_scroll_binding_keypad (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
2040 add_scroll_binding_keypad (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
2041 add_scroll_binding_keypad (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
2042 add_scroll_binding_keypad (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
2046 ev_view_init (EvView *view)
2048 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
2052 view->current_page = 0;
2053 view->pressed_button = -1;
2054 view->cursor = EV_VIEW_CURSOR_NORMAL;
2055 view->drag_info.in_drag = FALSE;
2056 view->selection_info.in_selection = FALSE;
2058 view->selection_mode = EV_VIEW_SELECTION_TEXT;
2059 view->continuous = TRUE;
2060 view->dual_page = FALSE;
2061 view->presentation = FALSE;
2062 view->fullscreen = FALSE;
2063 view->sizing_mode = EV_SIZING_FIT_WIDTH;
2064 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
2070 find_changed_cb (EvDocument *document, int page, EvView *view)
2072 jump_to_find_page (view, EV_VIEW_FIND_NEXT);
2073 jump_to_find_result (view);
2074 update_find_status_message (view);
2076 if (view->current_page == page)
2077 gtk_widget_queue_draw (GTK_WIDGET (view));
2081 job_finished_cb (EvPixbufCache *pixbuf_cache,
2084 gtk_widget_queue_draw (GTK_WIDGET (view));
2088 page_changed_cb (EvPageCache *page_cache,
2092 if (view->current_page != new_page) {
2094 view->current_page = new_page;
2095 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2096 gtk_widget_queue_resize (GTK_WIDGET (view));
2098 if (EV_IS_DOCUMENT_FIND (view->document)) {
2099 view->find_page = new_page;
2100 view->find_result = 0;
2101 update_find_status_message (view);
2106 static void on_adjustment_value_changed (GtkAdjustment *adjustment,
2111 if (! GTK_WIDGET_REALIZED (view))
2114 if (view->hadjustment) {
2115 dx = view->scroll_x - (int) view->hadjustment->value;
2116 view->scroll_x = (int) view->hadjustment->value;
2121 if (view->vadjustment) {
2122 dy = view->scroll_y - (int) view->vadjustment->value;
2123 view->scroll_y = (int) view->vadjustment->value;
2129 if (view->pending_resize)
2130 gtk_widget_queue_draw (GTK_WIDGET (view));
2132 gdk_window_scroll (GTK_WIDGET (view)->window, dx, dy);
2136 view_update_range_and_current_page (view);
2144 view = g_object_new (EV_TYPE_VIEW, NULL);
2150 setup_caches (EvView *view)
2152 view->page_cache = ev_page_cache_get (view->document);
2153 g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
2154 view->pixbuf_cache = ev_pixbuf_cache_new (GTK_WIDGET (view), view->document);
2155 g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
2159 clear_caches (EvView *view)
2161 if (view->pixbuf_cache) {
2162 g_object_unref (view->pixbuf_cache);
2163 view->pixbuf_cache = NULL;
2166 if (view->page_cache) {
2167 g_object_unref (view->page_cache);
2168 view->page_cache = NULL;
2173 ev_view_set_document (EvView *view,
2174 EvDocument *document)
2176 g_return_if_fail (EV_IS_VIEW (view));
2178 if (document != view->document) {
2179 clear_caches (view);
2181 if (view->document) {
2182 g_signal_handlers_disconnect_by_func (view->document,
2185 g_object_unref (view->document);
2186 view->page_cache = NULL;
2190 view->document = document;
2191 view->find_page = 0;
2192 view->find_result = 0;
2194 if (view->document) {
2195 g_object_ref (view->document);
2196 if (EV_IS_DOCUMENT_FIND (view->document)) {
2197 g_signal_connect (view->document,
2199 G_CALLBACK (find_changed_cb),
2203 setup_caches (view);
2206 gtk_widget_queue_resize (GTK_WIDGET (view));
2210 /*** Zoom and sizing mode ***/
2212 #define EPSILON 0.0000001
2214 ev_view_set_zoom (EvView *view,
2221 scale = view->scale * factor;
2225 scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
2227 if (ABS (view->scale - scale) < EPSILON)
2230 view->scale = scale;
2231 view->pending_resize = TRUE;
2233 gtk_widget_queue_resize (GTK_WIDGET (view));
2235 g_object_notify (G_OBJECT (view), "zoom");
2239 ev_view_get_zoom (EvView *view)
2245 ev_view_get_continuous (EvView *view)
2247 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2249 return view->continuous;
2253 ev_view_set_continuous (EvView *view,
2254 gboolean continuous)
2256 g_return_if_fail (EV_IS_VIEW (view));
2258 continuous = continuous != FALSE;
2260 if (view->continuous != continuous) {
2261 view->continuous = continuous;
2262 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2263 gtk_widget_queue_resize (GTK_WIDGET (view));
2266 g_object_notify (G_OBJECT (view), "continuous");
2270 ev_view_get_dual_page (EvView *view)
2272 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2274 return view->dual_page;
2278 ev_view_set_dual_page (EvView *view,
2281 g_return_if_fail (EV_IS_VIEW (view));
2283 dual_page = dual_page != FALSE;
2285 if (view->dual_page == dual_page)
2288 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2289 view->dual_page = dual_page;
2290 /* FIXME: if we're keeping the pixbuf cache around, we should extend the
2291 * preload_cache_size to be 2 if dual_page is set.
2293 gtk_widget_queue_resize (GTK_WIDGET (view));
2295 g_object_notify (G_OBJECT (view), "dual-page");
2299 ev_view_set_fullscreen (EvView *view,
2300 gboolean fullscreen)
2302 g_return_if_fail (EV_IS_VIEW (view));
2304 fullscreen = fullscreen != FALSE;
2306 if (view->fullscreen == fullscreen)
2309 view->fullscreen = fullscreen;
2310 gtk_widget_queue_resize (GTK_WIDGET (view));
2312 g_object_notify (G_OBJECT (view), "fullscreen");
2316 ev_view_get_fullscreen (EvView *view)
2318 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2320 return view->fullscreen;
2324 ev_view_set_presentation (EvView *view,
2325 gboolean presentation)
2327 g_return_if_fail (EV_IS_VIEW (view));
2329 presentation = presentation != FALSE;
2331 if (view->presentation == presentation)
2334 view->presentation = presentation;
2335 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2336 gtk_widget_queue_resize (GTK_WIDGET (view));
2338 if (GTK_WIDGET_REALIZED (view)) {
2339 if (view->presentation)
2340 gdk_window_set_background (GTK_WIDGET(view)->window,
2341 >K_WIDGET (view)->style->black);
2343 gdk_window_set_background (GTK_WIDGET(view)->window,
2344 >K_WIDGET (view)->style->mid [GTK_STATE_NORMAL]);
2348 g_object_notify (G_OBJECT (view), "presentation");
2352 ev_view_get_presentation (EvView *view)
2354 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2356 return view->presentation;
2360 ev_view_set_sizing_mode (EvView *view,
2361 EvSizingMode sizing_mode)
2363 g_return_if_fail (EV_IS_VIEW (view));
2365 if (view->sizing_mode == sizing_mode)
2368 view->sizing_mode = sizing_mode;
2369 gtk_widget_queue_resize (GTK_WIDGET (view));
2371 g_object_notify (G_OBJECT (view), "sizing-mode");
2375 ev_view_get_sizing_mode (EvView *view)
2377 g_return_val_if_fail (EV_IS_VIEW (view), EV_SIZING_FREE);
2379 return view->sizing_mode;
2383 ev_view_can_zoom_in (EvView *view)
2385 return view->scale * ZOOM_IN_FACTOR <= MAX_SCALE;
2389 ev_view_can_zoom_out (EvView *view)
2391 return view->scale * ZOOM_OUT_FACTOR >= MIN_SCALE;
2395 ev_view_zoom_in (EvView *view)
2397 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2399 view->pending_scroll = SCROLL_TO_CENTER;
2400 ev_view_set_zoom (view, ZOOM_IN_FACTOR, TRUE);
2404 ev_view_zoom_out (EvView *view)
2406 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2408 view->pending_scroll = SCROLL_TO_CENTER;
2409 ev_view_set_zoom (view, ZOOM_OUT_FACTOR, TRUE);
2413 ev_view_set_rotation (EvView *view, int rotation)
2415 view->rotation = rotation;
2417 ev_pixbuf_cache_clear (view->pixbuf_cache);
2418 gtk_widget_queue_resize (GTK_WIDGET (view));
2422 ev_view_rotate_right (EvView *view)
2424 int rotation = view->rotation + 90;
2426 if (rotation >= 360) {
2430 ev_view_set_rotation (view, rotation);
2434 ev_view_rotate_left (EvView *view)
2436 int rotation = view->rotation - 90;
2442 ev_view_set_rotation (view, rotation);
2446 zoom_for_size_fit_width (int doc_width,
2454 scale = (double)target_width / doc_width;
2456 if (doc_height * scale > target_height)
2457 scale = (double) (target_width - vsb_width) / doc_width;
2463 zoom_for_size_best_fit (int doc_width,
2473 w_scale = (double)target_width / doc_width;
2474 h_scale = (double)target_height / doc_height;
2476 if (doc_height * w_scale > target_height)
2477 w_scale = (double) (target_width - vsb_width) / doc_width;
2478 if (doc_width * h_scale > target_width)
2479 h_scale = (double) (target_height - hsb_width) / doc_height;
2481 return MIN (w_scale, h_scale);
2486 ev_view_zoom_for_size_presentation (EvView *view,
2490 int doc_width, doc_height;
2493 ev_page_cache_get_size (view->page_cache,
2499 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, 0, 0);
2500 ev_view_set_zoom (view, scale, FALSE);
2504 ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
2510 int doc_width, doc_height;
2514 ev_page_cache_get_max_width (view->page_cache,
2518 ev_page_cache_get_max_height (view->page_cache,
2522 compute_border (view, doc_width, doc_height, &border);
2524 doc_width = doc_width * 2;
2525 width -= (2 * (border.left + border.right) + 3 * view->spacing);
2526 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2528 /* FIXME: We really need to calculate the overall height here, not the
2529 * page height. We assume there's always a vertical scrollbar for
2530 * now. We need to fix this. */
2531 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2532 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
2533 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2534 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
2536 g_assert_not_reached ();
2538 ev_view_set_zoom (view, scale, FALSE);
2542 ev_view_zoom_for_size_continuous (EvView *view,
2548 int doc_width, doc_height;
2552 ev_page_cache_get_max_width (view->page_cache,
2556 ev_page_cache_get_max_height (view->page_cache,
2560 compute_border (view, doc_width, doc_height, &border);
2562 width -= (border.left + border.right + 2 * view->spacing);
2563 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2565 /* FIXME: We really need to calculate the overall height here, not the
2566 * page height. We assume there's always a vertical scrollbar for
2567 * now. We need to fix this. */
2568 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2569 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
2570 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2571 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
2573 g_assert_not_reached ();
2575 ev_view_set_zoom (view, scale, FALSE);
2579 ev_view_zoom_for_size_dual_page (EvView *view,
2586 gint doc_width, doc_height;
2590 other_page = view->current_page ^ 1;
2592 /* Find the largest of the two. */
2593 ev_page_cache_get_size (view->page_cache,
2597 &doc_width, &doc_height);
2599 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
2600 gint width_2, height_2;
2601 ev_page_cache_get_size (view->page_cache,
2605 &width_2, &height_2);
2606 if (width_2 > doc_width)
2607 doc_width = width_2;
2608 if (height_2 > doc_height)
2609 doc_height = height_2;
2611 compute_border (view, doc_width, doc_height, &border);
2613 doc_width = doc_width * 2;
2614 width -= ((border.left + border.right)* 2 + 3 * view->spacing);
2615 height -= (border.top + border.bottom + 2 * view->spacing);
2617 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2618 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
2619 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2620 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
2622 g_assert_not_reached ();
2624 ev_view_set_zoom (view, scale, FALSE);
2628 ev_view_zoom_for_size_single_page (EvView *view,
2634 int doc_width, doc_height;
2638 ev_page_cache_get_size (view->page_cache,
2644 /* Get an approximate border */
2645 compute_border (view, width, height, &border);
2647 width -= (border.left + border.right + 2 * view->spacing);
2648 height -= (border.top + border.bottom + 2 * view->spacing);
2650 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2651 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
2652 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2653 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
2655 g_assert_not_reached ();
2657 ev_view_set_zoom (view, scale, FALSE);
2661 ev_view_set_zoom_for_size (EvView *view,
2667 g_return_if_fail (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
2668 view->sizing_mode == EV_SIZING_BEST_FIT);
2669 g_return_if_fail (width >= 0);
2670 g_return_if_fail (height >= 0);
2672 if (view->document == NULL)
2675 if (view->presentation)
2676 ev_view_zoom_for_size_presentation (view, width, height);
2677 else if (view->continuous && view->dual_page)
2678 ev_view_zoom_for_size_continuous_and_dual_page (view, width, height, vsb_width, hsb_height);
2679 else if (view->continuous)
2680 ev_view_zoom_for_size_continuous (view, width, height, vsb_width, hsb_height);
2681 else if (view->dual_page)
2682 ev_view_zoom_for_size_dual_page (view, width, height, vsb_width, hsb_height);
2684 ev_view_zoom_for_size_single_page (view, width, height, vsb_width, hsb_height);
2687 /*** Status text messages ***/
2690 ev_view_get_status (EvView *view)
2692 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2694 return view->status;
2698 ev_view_set_status (EvView *view, const char *message)
2700 g_return_if_fail (EV_IS_VIEW (view));
2702 if (message != view->status) {
2703 g_free (view->status);
2704 view->status = g_strdup (message);
2705 g_object_notify (G_OBJECT (view), "status");
2710 update_find_status_message (EvView *view)
2714 if (view->current_page == view->find_page) {
2717 results = ev_document_find_get_n_results
2718 (EV_DOCUMENT_FIND (view->document),
2719 view->current_page);
2720 /* TRANS: Sometimes this could be better translated as
2721 "%d hit(s) on this page". Therefore this string
2722 contains plural cases. */
2723 message = g_strdup_printf (ngettext ("%d found on this page",
2724 "%d found on this page",
2730 percent = ev_document_find_get_progress
2731 (EV_DOCUMENT_FIND (view->document));
2732 if (percent >= (1.0 - 1e-10)) {
2733 message = g_strdup (_("Not found"));
2735 message = g_strdup_printf (_("%3d%% remaining to search"),
2736 (int) ((1.0 - percent) * 100));
2740 ev_view_set_find_status (view, message);
2745 ev_view_get_find_status (EvView *view)
2747 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2749 return view->find_status;
2753 ev_view_set_find_status (EvView *view, const char *message)
2755 g_return_if_fail (EV_IS_VIEW (view));
2757 g_free (view->find_status);
2758 view->find_status = g_strdup (message);
2759 g_object_notify (G_OBJECT (view), "find-status");
2765 jump_to_find_result (EvView *view)
2767 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2769 GdkRectangle view_rect;
2771 int page = view->find_page;
2773 n_results = ev_document_find_get_n_results (find, page);
2775 if (n_results > 0 && view->find_result < n_results) {
2776 ev_document_find_get_result
2777 (find, page, view->find_result, &rect);
2779 doc_rect_to_view_rect (view, page, &rect, &view_rect);
2780 ensure_rectangle_is_visible (view, &view_rect);
2785 jump_to_find_page (EvView *view, EvViewFindDirection direction)
2789 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2791 for (i = 0; i < n_pages; i++) {
2795 if (direction == EV_VIEW_FIND_NEXT)
2796 page = view->find_page + i;
2798 page = view->find_page - i;
2801 if (page >= n_pages) {
2802 page = page - n_pages;
2805 page = page + n_pages;
2807 has_results = ev_document_find_page_has_results
2808 (EV_DOCUMENT_FIND (view->document), page);
2809 if (has_results == -1) {
2810 view->find_page = page;
2812 } else if (has_results == 1) {
2813 ev_page_cache_set_current_page (view->page_cache, page);
2820 ev_view_can_find_next (EvView *view)
2824 if (EV_IS_DOCUMENT_FIND (view->document)) {
2825 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2827 n_results = ev_document_find_get_n_results (find, view->current_page);
2830 return n_results > 0;
2834 ev_view_find_next (EvView *view)
2836 int n_results, n_pages;
2837 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2839 n_results = ev_document_find_get_n_results (find, view->current_page);
2841 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2843 view->find_result++;
2845 if (view->find_result >= n_results) {
2847 view->find_result = 0;
2849 if (view->find_page >= n_pages) {
2850 view->find_page = 0;
2853 jump_to_find_page (view, EV_VIEW_FIND_NEXT);
2854 jump_to_find_result (view);
2856 jump_to_find_result (view);
2857 gtk_widget_queue_draw (GTK_WIDGET (view));
2862 ev_view_find_previous (EvView *view)
2864 int n_results, n_pages;
2865 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2866 EvPageCache *page_cache;
2868 page_cache = ev_page_cache_get (view->document);
2870 n_results = ev_document_find_get_n_results (find, view->current_page);
2872 n_pages = ev_page_cache_get_n_pages (page_cache);
2874 view->find_result--;
2876 if (view->find_result < 0) {
2879 if (view->find_page < 0) {
2880 view->find_page = n_pages - 1;
2883 jump_to_find_page (view, EV_VIEW_FIND_PREV);
2884 view->find_result = ev_document_find_get_n_results (find, view->current_page) - 1;
2885 jump_to_find_result (view);
2887 jump_to_find_result (view);
2888 gtk_widget_queue_draw (GTK_WIDGET (view));
2892 /*** Selections ***/
2894 /* compute_new_selection_rect/text calculates the area currently selected by
2895 * view_rect. each handles a different mode;
2898 compute_new_selection_rect (EvView *view,
2902 GdkRectangle view_rect;
2906 g_assert (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE);
2908 view_rect.x = MIN (start->x, stop->x);
2909 view_rect.y = MIN (start->y, stop->y);
2910 view_rect.width = MAX (start->x, stop->x) - view_rect.x;
2911 view_rect.width = MAX (start->y, stop->y) - view_rect.y;
2913 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2915 for (i = 0; i < n_pages; i++) {
2916 GdkRectangle page_area;
2919 if (get_page_extents (view, i, &page_area, &border)) {
2920 GdkRectangle overlap;
2922 if (gdk_rectangle_intersect (&page_area, &view_rect, &overlap)) {
2923 EvViewSelection *selection;
2925 selection = g_new0 (EvViewSelection, 1);
2926 selection->page = i;
2927 view_rect_to_doc_rect (view, &overlap, &page_area,
2928 &(selection->rect));
2930 list = g_list_append (list, selection);
2939 gdk_rectangle_point_in (GdkRectangle *rectangle,
2942 return rectangle->x <= point->x &&
2943 rectangle->y <= point->y &&
2944 point->x < rectangle->x + rectangle->width &&
2945 point->y < rectangle->y + rectangle->height;
2949 compute_new_selection_text (EvView *view,
2953 int n_pages, i, first, last;
2955 EvViewSelection *selection;
2958 g_assert (view->selection_mode == EV_VIEW_SELECTION_TEXT);
2960 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2962 /* First figure out the range of pages the selection
2966 for (i = 0; i < n_pages; i++) {
2967 GdkRectangle page_area;
2970 get_page_extents (view, i, &page_area, &border);
2971 if (gdk_rectangle_point_in (&page_area, start) ||
2972 gdk_rectangle_point_in (&page_area, stop)) {
2973 if (first == n_pages)
2982 /* Now create a list of EvViewSelection's for the affected
2983 * pages. This could be an empty list, a list of just one
2984 * page or a number of pages.*/
2985 for (i = first; i < last + 1; i++) {
2986 GdkRectangle page_area;
2990 ev_page_cache_get_size (view->page_cache, i,
2992 1.0, &width, &height);
2994 selection = g_new0 (EvViewSelection, 1);
2995 selection->page = i;
2996 selection->rect.x1 = selection->rect.y1 = 0;
2997 selection->rect.x2 = width;
2998 selection->rect.y2 = height;
3000 get_page_extents (view, i, &page_area, &border);
3002 if (gdk_rectangle_point_in (&page_area, start))
3008 view_point_to_doc_point (view, point, &page_area,
3009 &selection->rect.x1,
3010 &selection->rect.y1);
3012 /* If the selection is contained within just one page,
3013 * make sure we don't write 'start' into both points
3014 * in selection->rect. */
3019 view_point_to_doc_point (view, point, &page_area,
3020 &selection->rect.x2,
3021 &selection->rect.y2);
3023 list = g_list_append (list, selection);
3029 /* This function takes the newly calculated list, and figures out which regions
3030 * have changed. It then queues a redraw approporiately.
3033 merge_selection_region (EvView *view,
3037 GList *new_list_ptr, *old_list_ptr;
3039 /* Update the selection */
3040 old_list = ev_pixbuf_cache_get_selection_list (view->pixbuf_cache);
3041 g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
3042 view->selection_info.selections = new_list;
3043 ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, new_list);
3045 new_list_ptr = new_list;
3046 old_list_ptr = old_list;
3048 while (new_list_ptr || old_list_ptr) {
3049 EvViewSelection *old_sel, *new_sel;
3051 GdkRegion *region = NULL;
3053 new_sel = (new_list_ptr) ? (new_list_ptr->data) : NULL;
3054 old_sel = (old_list_ptr) ? (old_list_ptr->data) : NULL;
3056 /* Assume that the lists are in order, and we run through them
3057 * comparing them, one page at a time. We come out with the
3058 * first page we see. */
3059 if (new_sel && old_sel) {
3060 if (new_sel->page < old_sel->page) {
3061 new_list_ptr = new_list_ptr->next;
3063 } else if (new_sel->page > old_sel->page) {
3064 old_list_ptr = old_list_ptr->next;
3067 new_list_ptr = new_list_ptr->next;
3068 old_list_ptr = old_list_ptr->next;
3070 } else if (new_sel) {
3071 new_list_ptr = new_list_ptr->next;
3072 } else if (old_sel) {
3073 old_list_ptr = old_list_ptr->next;
3076 g_assert (new_sel || old_sel);
3078 /* is the page we're looking at on the screen?*/
3079 cur_page = new_sel ? new_sel->page : old_sel->page;
3080 if (cur_page < view->start_page || cur_page > view->end_page)
3083 /* seed the cache with a new page. We are going to need the new
3086 GdkRegion *tmp_region = NULL;
3087 ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache,
3092 new_sel->covered_region = gdk_region_copy (tmp_region);
3096 /* Now we figure out what needs redrawing */
3097 if (old_sel && new_sel) {
3098 if (old_sel->covered_region &&
3099 new_sel->covered_region) {
3100 /* We only want to redraw the areas that have
3101 * changed, so we xor the old and new regions
3102 * and redraw if it's different */
3103 region = gdk_region_copy (old_sel->covered_region);
3104 gdk_region_xor (region, new_sel->covered_region);
3105 if (gdk_region_empty (region)) {
3106 gdk_region_destroy (region);
3109 } else if (old_sel->covered_region) {
3110 region = gdk_region_copy (old_sel->covered_region);
3111 } else if (new_sel->covered_region) {
3112 region = gdk_region_copy (new_sel->covered_region);
3114 } else if (old_sel && !new_sel) {
3115 if (old_sel->covered_region && !gdk_region_empty (old_sel->covered_region)) {
3116 region = gdk_region_copy (old_sel->covered_region);
3118 } else if (!old_sel && new_sel) {
3119 if (new_sel->covered_region && !gdk_region_empty (new_sel->covered_region)) {
3120 region = gdk_region_copy (new_sel->covered_region);
3123 g_assert_not_reached ();
3126 /* Redraw the damaged region! */
3128 GdkRectangle page_area;
3131 get_page_extents (view, cur_page, &page_area, &border);
3132 gdk_region_offset (region,
3133 page_area.x + border.left - view->scroll_x,
3134 page_area.y + border.top - view->scroll_y);
3135 gdk_window_invalidate_region (GTK_WIDGET (view)->window, region, TRUE);
3136 gdk_region_destroy (region);
3140 /* Free the old list, now that we're done with it. */
3141 g_list_foreach (old_list, (GFunc) selection_free, NULL);
3145 compute_selections (EvView *view,
3151 if (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE)
3152 list = compute_new_selection_rect (view, start, stop);
3154 list = compute_new_selection_text (view, start, stop);
3155 merge_selection_region (view, list);
3158 /* Free's the selection. It's up to the caller to queue redraws if needed.
3161 selection_free (EvViewSelection *selection)
3163 if (selection->covered_region)
3164 gdk_region_destroy (selection->covered_region);
3169 clear_selection (EvView *view)
3171 g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
3172 view->selection_info.selections = NULL;
3173 view->selection_info.in_selection = FALSE;
3178 ev_view_select_all (EvView *view)
3182 clear_selection (view);
3184 n_pages = ev_page_cache_get_n_pages (view->page_cache);
3185 for (i = 0; i < n_pages; i++) {
3187 EvViewSelection *selection;
3189 ev_page_cache_get_size (view->page_cache,
3192 1.0, &width, &height);
3194 selection = g_new0 (EvViewSelection, 1);
3195 selection->page = i;
3196 selection->rect.x1 = selection->rect.y1 = 0;
3197 selection->rect.x2 = width;
3198 selection->rect.y2 = height;
3200 view->selection_info.selections = g_list_append (view->selection_info.selections, selection);
3203 ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, view->selection_info.selections);
3204 gtk_widget_queue_draw (GTK_WIDGET (view));
3208 get_selected_text (EvView *ev_view)
3213 text = g_string_new (NULL);
3215 ev_document_doc_mutex_lock ();
3217 for (l = ev_view->selection_info.selections; l != NULL; l = l->next) {
3218 EvViewSelection *selection = (EvViewSelection *)l->data;
3221 tmp = ev_document_get_text (ev_view->document,
3224 g_string_append (text, tmp);
3228 ev_document_doc_mutex_unlock ();
3230 return g_string_free (text, FALSE);
3234 ev_view_copy (EvView *ev_view)
3236 GtkClipboard *clipboard;
3239 if (!ev_document_can_get_text (ev_view->document)) {
3243 text = get_selected_text (ev_view);
3244 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
3245 GDK_SELECTION_CLIPBOARD);
3246 gtk_clipboard_set_text (clipboard, text, -1);
3251 ev_view_primary_get_cb (GtkClipboard *clipboard,
3252 GtkSelectionData *selection_data,
3256 EvView *ev_view = EV_VIEW (data);
3259 if (!ev_document_can_get_text (ev_view->document)) {
3263 text = get_selected_text (ev_view);
3264 gtk_selection_data_set_text (selection_data, text, -1);
3269 ev_view_primary_clear_cb (GtkClipboard *clipboard,
3272 EvView *view = EV_VIEW (data);
3274 clear_selection (view);
3278 ev_view_update_primary_selection (EvView *ev_view)
3280 GtkClipboard *clipboard;
3282 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
3283 GDK_SELECTION_PRIMARY);
3285 if (ev_view->selection_info.selections) {
3286 if (!gtk_clipboard_set_with_owner (clipboard,
3288 G_N_ELEMENTS (targets),
3289 ev_view_primary_get_cb,
3290 ev_view_primary_clear_cb,
3291 G_OBJECT (ev_view)))
3292 ev_view_primary_clear_cb (clipboard, ev_view);
3294 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
3295 gtk_clipboard_clear (clipboard);
3299 /*** Cursor operations ***/
3302 ev_view_create_invisible_cursor(void)
3305 GdkColor black = { 0, 0, 0, 0 };
3306 static char bits[] = { 0x00 };
3308 empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
3310 return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
3314 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
3316 GdkCursor *cursor = NULL;
3317 GdkDisplay *display;
3320 if (view->cursor == new_cursor) {
3324 widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
3325 display = gtk_widget_get_display (widget);
3326 view->cursor = new_cursor;
3328 switch (new_cursor) {
3329 case EV_VIEW_CURSOR_NORMAL:
3330 gdk_window_set_cursor (widget->window, NULL);
3332 case EV_VIEW_CURSOR_IBEAM:
3333 cursor = gdk_cursor_new_for_display (display, GDK_XTERM);
3335 case EV_VIEW_CURSOR_LINK:
3336 cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
3338 case EV_VIEW_CURSOR_WAIT:
3339 cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
3341 case EV_VIEW_CURSOR_HIDDEN:
3342 cursor = ev_view_create_invisible_cursor ();
3344 case EV_VIEW_CURSOR_DRAG:
3345 cursor = gdk_cursor_new_for_display (display, GDK_FLEUR);
3350 gdk_window_set_cursor (widget->window, cursor);
3351 gdk_cursor_unref (cursor);
3357 ev_view_hide_cursor (EvView *view)
3359 ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
3363 ev_view_show_cursor (EvView *view)
3365 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
3368 /*** Enum description for usage in signal ***/
3371 ev_sizing_mode_get_type (void)
3373 static GType etype = 0;
3375 static const GEnumValue values[] = {
3376 { EV_SIZING_FIT_WIDTH, "EV_SIZING_FIT_WIDTH", "fit-width" },
3377 { EV_SIZING_BEST_FIT, "EV_SIZING_BEST_FIT", "best-fit" },
3378 { EV_SIZING_FREE, "EV_SIZING_FREE", "free" },
3381 etype = g_enum_register_static ("EvSizingMode", values);