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))
60 SIGNAL_BINDING_ACTIVATED,
70 TARGET_TEXT_BUFFER_CONTENTS
73 static const GtkTargetEntry targets[] = {
74 { "STRING", 0, TARGET_STRING },
75 { "TEXT", 0, TARGET_TEXT },
76 { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
77 { "UTF8_STRING", 0, TARGET_UTF8_STRING },
80 static guint signals[N_SIGNALS];
83 EV_VIEW_CURSOR_NORMAL,
87 EV_VIEW_CURSOR_HIDDEN,
94 } EvViewFindDirection;
96 #define ZOOM_IN_FACTOR 1.2
97 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
99 #define MIN_SCALE 0.05409
100 #define MAX_SCALE 4.0
102 /* Information for middle clicking and moving around the doc */
110 /* Information for handling selection */
112 gboolean in_selection;
118 SCROLL_TO_KEEP_POSITION,
119 SCROLL_TO_CURRENT_PAGE,
124 GtkWidget parent_instance;
126 EvDocument *document;
132 GtkAdjustment *hadjustment;
133 GtkAdjustment *vadjustment;
138 /* Information for middle clicking and dragging around. */
144 guint selection_update_id;
146 EvViewSelectionMode selection_mode;
147 SelectionInfo selection_info;
152 EvPageCache *page_cache;
153 EvPixbufCache *pixbuf_cache;
159 EvJobRender *current_job;
171 gboolean presentation;
172 EvSizingMode sizing_mode;
174 PendingScroll pending_scroll;
175 gboolean pending_resize;
178 struct _EvViewClass {
179 GtkWidgetClass parent_class;
181 void (*set_scroll_adjustments) (EvView *view,
182 GtkAdjustment *hadjustment,
183 GtkAdjustment *vadjustment);
184 void (*binding_activated) (EvView *view,
185 GtkScrollType scroll,
186 gboolean horizontal);
187 void (*zoom_invalid) (EvView *view);
191 static void scroll_to_current_page (EvView *view,
192 GtkOrientation orientation);
193 static void ev_view_set_scroll_adjustments (EvView *view,
194 GtkAdjustment *hadjustment,
195 GtkAdjustment *vadjustment);
196 static void view_update_range_and_current_page (EvView *view);
197 static void set_scroll_adjustment (EvView *view,
198 GtkOrientation orientation,
199 GtkAdjustment *adjustment);
200 static void ev_view_set_scroll_adjustments (EvView *view,
201 GtkAdjustment *hadjustment,
202 GtkAdjustment *vadjustment);
203 static void add_scroll_binding_keypad (GtkBindingSet *binding_set,
205 GtkScrollType scroll,
206 gboolean horizontal);
207 static void ev_view_binding_activated (EvView *view,
208 GtkScrollType scroll,
209 gboolean horizontal);
210 static void ensure_rectangle_is_visible (EvView *view,
213 /*** Geometry computations ***/
214 static void compute_border (EvView *view,
218 static void get_page_y_offset (EvView *view,
222 static gboolean get_page_extents (EvView *view,
224 GdkRectangle *page_area,
226 static void view_rect_to_doc_rect (EvView *view,
227 GdkRectangle *view_rect,
228 GdkRectangle *page_area,
229 EvRectangle *doc_rect);
230 static void doc_rect_to_view_rect (EvView *view,
232 EvRectangle *doc_rect,
233 GdkRectangle *view_rect);
234 static void find_page_at_location (EvView *view,
242 static EvLink* get_link_at_location (EvView *view,
245 static void go_to_link (EvView *view,
247 static char* status_message_from_link (EvView *view,
250 /*** GtkWidget implementation ***/
251 static void ev_view_size_request_continuous_dual_page (EvView *view,
252 GtkRequisition *requisition);
253 static void ev_view_size_request_continuous (EvView *view,
254 GtkRequisition *requisition);
255 static void ev_view_size_request_dual_page (EvView *view,
256 GtkRequisition *requisition);
257 static void ev_view_size_request_single_page (EvView *view,
258 GtkRequisition *requisition);
259 static void ev_view_size_request (GtkWidget *widget,
260 GtkRequisition *requisition);
261 static void ev_view_size_allocate (GtkWidget *widget,
262 GtkAllocation *allocation);
263 static void ev_view_realize (GtkWidget *widget);
264 static void ev_view_unrealize (GtkWidget *widget);
265 static gboolean ev_view_scroll_event (GtkWidget *widget,
266 GdkEventScroll *event);
267 static gboolean ev_view_expose_event (GtkWidget *widget,
268 GdkEventExpose *event);
269 static gboolean ev_view_button_press_event (GtkWidget *widget,
270 GdkEventButton *event);
271 static gboolean ev_view_motion_notify_event (GtkWidget *widget,
272 GdkEventMotion *event);
273 static gboolean ev_view_button_release_event (GtkWidget *widget,
274 GdkEventButton *event);
275 static gboolean ev_view_leave_notify_event (GtkWidget *widget,
276 GdkEventCrossing *event);
277 static void ev_view_style_set (GtkWidget *widget,
278 GtkStyle *old_style);
281 static guint32 ev_gdk_color_to_rgb (const GdkColor *color);
282 static void draw_rubberband (GtkWidget *widget,
284 const GdkRectangle *rect,
286 static void highlight_find_results (EvView *view,
288 static void draw_one_page (EvView *view,
290 GdkRectangle *page_area,
292 GdkRectangle *expose_area);
295 static void find_changed_cb (EvDocument *document,
298 static void job_finished_cb (EvPixbufCache *pixbuf_cache,
300 static void page_changed_cb (EvPageCache *page_cache,
303 static void on_adjustment_value_changed (GtkAdjustment *adjustment,
307 static void ev_view_finalize (GObject *object);
308 static void ev_view_destroy (GtkObject *object);
309 static void ev_view_set_property (GObject *object,
313 static void ev_view_get_property (GObject *object,
317 static void ev_view_class_init (EvViewClass *class);
318 static void ev_view_init (EvView *view);
320 /*** Zoom and sizing ***/
321 static double zoom_for_size_fit_width (int doc_width,
326 static double zoom_for_size_best_fit (int doc_width,
332 static void ev_view_zoom_for_size_presentation (EvView *view,
335 static void ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
340 static void ev_view_zoom_for_size_continuous (EvView *view,
345 static void ev_view_zoom_for_size_dual_page (EvView *view,
350 static void ev_view_zoom_for_size_single_page (EvView *view,
356 static GdkCursor* ev_view_create_invisible_cursor (void);
357 static void ev_view_set_cursor (EvView *view,
358 EvViewCursor new_cursor);
360 /*** Status messages ***/
361 static void ev_view_set_status (EvView *view,
362 const char *message);
363 static void update_find_status_message (EvView *view);
364 static void ev_view_set_find_status (EvView *view,
365 const char *message);
367 static void jump_to_find_result (EvView *view);
368 static void jump_to_find_page (EvView *view,
369 EvViewFindDirection direction);
372 static void compute_selections (EvView *view,
375 static void clear_selection (EvView *view);
376 static void selection_free (EvViewSelection *selection);
377 static char* get_selected_text (EvView *ev_view);
378 static void ev_view_primary_get_cb (GtkClipboard *clipboard,
379 GtkSelectionData *selection_data,
382 static void ev_view_primary_clear_cb (GtkClipboard *clipboard,
384 static void ev_view_update_primary_selection (EvView *ev_view);
387 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
390 scroll_to_current_page (EvView *view, GtkOrientation orientation)
392 GdkRectangle page_area;
395 if (view->document == NULL) {
399 get_page_extents (view, view->current_page, &page_area, &border);
401 if (orientation == GTK_ORIENTATION_VERTICAL) {
402 if (view->continuous) {
403 gtk_adjustment_clamp_page (view->vadjustment,
404 page_area.y - view->spacing,
405 page_area.y + view->vadjustment->page_size);
407 gtk_adjustment_set_value (view->vadjustment,
408 view->vadjustment->lower);
411 if (view->dual_page) {
412 gtk_adjustment_clamp_page (view->hadjustment,
414 page_area.x + view->hadjustment->page_size);
416 gtk_adjustment_set_value (view->hadjustment,
417 CLAMP (view->hadjustment->value,
418 view->hadjustment->lower,
419 view->hadjustment->upper -
420 view->hadjustment->page_size));
426 view_set_adjustment_values (EvView *view,
427 GtkOrientation orientation)
429 GtkWidget *widget = GTK_WIDGET (view);
430 GtkAdjustment *adjustment;
437 if (orientation == GTK_ORIENTATION_HORIZONTAL) {
438 requisition = widget->requisition.width;
439 allocation = widget->allocation.width;
440 adjustment = view->hadjustment;
442 requisition = widget->requisition.height;
443 allocation = widget->allocation.height;
444 adjustment = view->vadjustment;
451 switch (view->pending_scroll) {
452 case SCROLL_TO_KEEP_POSITION:
453 factor = (adjustment->value) / adjustment->upper;
455 case SCROLL_TO_CURRENT_PAGE:
457 case SCROLL_TO_CENTER:
458 factor = (adjustment->value + adjustment->page_size * 0.5) / adjustment->upper;
462 adjustment->page_size = allocation;
463 adjustment->step_increment = allocation * 0.1;
464 adjustment->page_increment = allocation * 0.9;
465 adjustment->lower = 0;
466 adjustment->upper = MAX (allocation, requisition);
469 * We add 0.5 to the values before to average out our rounding errors.
471 switch (view->pending_scroll) {
472 case SCROLL_TO_KEEP_POSITION:
473 new_value = CLAMP (adjustment->upper * factor + 0.5, 0, adjustment->upper - adjustment->page_size);
474 gtk_adjustment_set_value (adjustment, (int)new_value);
476 case SCROLL_TO_CURRENT_PAGE:
477 scroll_to_current_page (view, orientation);
479 case SCROLL_TO_CENTER:
480 new_value = CLAMP (adjustment->upper * factor - adjustment->page_size * 0.5 + 0.5,
481 0, adjustment->upper - adjustment->page_size);
482 gtk_adjustment_set_value (adjustment, (int)new_value);
486 gtk_adjustment_changed (adjustment);
490 view_update_range_and_current_page (EvView *view)
492 if (view->pending_scroll != SCROLL_TO_KEEP_POSITION)
495 /* Presentation trumps all other modes */
496 if (view->presentation) {
497 view->start_page = view->current_page;
498 view->end_page = view->current_page;
499 } else if (view->continuous) {
500 GdkRectangle current_area, unused, page_area;
503 gboolean found = FALSE;
506 if (!(view->vadjustment && view->hadjustment))
509 current_area.x = view->hadjustment->value;
510 current_area.width = view->hadjustment->upper;
511 current_area.y = view->vadjustment->value;
512 current_area.height = view->vadjustment->page_size;
514 for (i = 0; i < ev_page_cache_get_n_pages (view->page_cache); i++) {
516 get_page_extents (view, i, &page_area, &border);
518 if (gdk_rectangle_intersect (¤t_area, &page_area, &unused)) {
520 view->start_page = i;
530 current_page = ev_page_cache_get_current_page (view->page_cache);
532 if (current_page < view->start_page || current_page > view->end_page) {
533 view->current_page = view->start_page;
534 ev_page_cache_set_current_page (view->page_cache, view->start_page);
537 if (view->dual_page) {
538 if (view->current_page % 2 == 0) {
539 view->start_page = view->current_page;
540 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache))
541 view->end_page = view->start_page + 1;
543 view->start_page = view->current_page - 1;
544 view->end_page = view->current_page;
547 view->start_page = view->current_page;
548 view->end_page = view->current_page;
552 ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
557 view->selection_info.selections);
561 set_scroll_adjustment (EvView *view,
562 GtkOrientation orientation,
563 GtkAdjustment *adjustment)
565 GtkAdjustment **to_set;
567 if (orientation == GTK_ORIENTATION_HORIZONTAL)
568 to_set = &view->hadjustment;
570 to_set = &view->vadjustment;
572 if (*to_set != adjustment) {
574 g_signal_handlers_disconnect_by_func (*to_set,
575 (gpointer) on_adjustment_value_changed,
577 g_object_unref (*to_set);
580 *to_set = adjustment;
581 view_set_adjustment_values (view, orientation);
584 g_object_ref (*to_set);
585 g_signal_connect (*to_set, "value_changed",
586 G_CALLBACK (on_adjustment_value_changed), view);
592 ev_view_set_scroll_adjustments (EvView *view,
593 GtkAdjustment *hadjustment,
594 GtkAdjustment *vadjustment)
596 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
597 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
599 on_adjustment_value_changed (NULL, view);
603 add_scroll_binding_keypad (GtkBindingSet *binding_set,
605 GtkScrollType scroll,
608 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
610 gtk_binding_entry_add_signal (binding_set, keyval, 0,
611 "binding_activated", 2,
612 GTK_TYPE_SCROLL_TYPE, scroll,
613 G_TYPE_BOOLEAN, horizontal);
614 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
615 "binding_activated", 2,
616 GTK_TYPE_SCROLL_TYPE, scroll,
617 G_TYPE_BOOLEAN, horizontal);
621 ev_view_scroll (EvView *view,
624 GtkAdjustment *adjustment;
625 double value, increment;
626 gboolean first_page = FALSE;
627 gboolean last_page = FALSE;
629 /* Assign values for increment and vertical adjustment */
630 adjustment = view->vadjustment;
631 increment = adjustment->page_size * 0.75;
632 value = adjustment->value;
634 /* Assign boolean for first and last page */
635 if (view->current_page == 0)
637 if (view->current_page == ev_page_cache_get_n_pages (view->page_cache) - 1)
641 case EV_SCROLL_PAGE_BACKWARD:
642 /* Do not jump backwards if at the first page */
643 if (value == (adjustment->lower) && first_page) {
645 /* At the top of a page, assign the upper bound limit of previous page */
646 } else if (value == (adjustment->lower)) {
647 value = adjustment->upper - adjustment->page_size;
648 ev_page_cache_set_current_page (view->page_cache, view->current_page - 1);
649 /* Jump to the top */
651 value = MAX (value - increment, adjustment->lower);
654 case EV_SCROLL_PAGE_FORWARD:
655 /* Do not jump forward if at the last page */
656 if (value == (adjustment->upper - adjustment->page_size) && last_page) {
658 /* At the bottom of a page, assign the lower bound limit of next page */
659 } else if (value == (adjustment->upper - adjustment->page_size)) {
661 ev_page_cache_set_current_page (view->page_cache, view->current_page + 1);
662 /* Jump to the bottom */
664 value = MIN (value + increment, adjustment->upper - adjustment->page_size);
671 gtk_adjustment_set_value (adjustment, value);
675 ev_view_binding_activated (EvView *view,
676 GtkScrollType scroll,
679 GtkAdjustment *adjustment;
682 if (view->presentation) {
684 case GTK_SCROLL_STEP_BACKWARD:
685 ev_page_cache_prev_page (view->page_cache);
687 case GTK_SCROLL_STEP_FORWARD:
688 ev_page_cache_next_page (view->page_cache);
697 adjustment = view->hadjustment;
699 adjustment = view->vadjustment;
702 value = adjustment->value;
705 case GTK_SCROLL_STEP_BACKWARD:
706 value -= adjustment->step_increment;
708 case GTK_SCROLL_STEP_FORWARD:
709 value += adjustment->step_increment;
715 value = CLAMP (value, adjustment->lower,
716 adjustment->upper - adjustment->page_size);
718 gtk_adjustment_set_value (adjustment, value);
724 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
726 GtkWidget *widget = GTK_WIDGET (view);
727 GtkAdjustment *adjustment;
730 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
732 adjustment = view->vadjustment;
734 if (rect->y < adjustment->value) {
735 value = MAX (adjustment->lower, rect->y - MARGIN);
736 gtk_adjustment_set_value (view->vadjustment, value);
737 } else if (rect->y + rect->height >
738 adjustment->value + widget->allocation.height) {
739 value = MIN (adjustment->upper, rect->y + rect->height -
740 widget->allocation.height + MARGIN);
741 gtk_adjustment_set_value (view->vadjustment, value);
744 adjustment = view->hadjustment;
746 if (rect->x < adjustment->value) {
747 value = MAX (adjustment->lower, rect->x - MARGIN);
748 gtk_adjustment_set_value (view->hadjustment, value);
749 } else if (rect->x + rect->height >
750 adjustment->value + widget->allocation.width) {
751 value = MIN (adjustment->upper, rect->x + rect->width -
752 widget->allocation.width + MARGIN);
753 gtk_adjustment_set_value (view->hadjustment, value);
757 /*** Geometry computations ***/
760 compute_border (EvView *view, int width, int height, GtkBorder *border)
762 if (view->presentation) {
768 ev_document_misc_get_page_border_size (width, height, border);
773 get_page_y_offset (EvView *view, int page, double zoom, int *y_offset)
775 int max_width, offset;
778 g_return_if_fail (y_offset != NULL);
780 ev_page_cache_get_max_width (view->page_cache, view->rotation, zoom, &max_width);
782 compute_border (view, max_width, max_width, &border);
784 if (view->dual_page) {
785 ev_page_cache_get_height_to_page (view->page_cache, page,
786 view->rotation, zoom, NULL, &offset);
787 offset += (page / 2 + 1) * view->spacing + (page / 2) * (border.top + border.bottom);
789 ev_page_cache_get_height_to_page (view->page_cache, page,
790 view->rotation, zoom, &offset, NULL);
791 offset += (page + 1) * view->spacing + page * (border.top + border.bottom);
799 get_page_extents (EvView *view,
801 GdkRectangle *page_area,
807 widget = GTK_WIDGET (view);
809 /* Get the size of the page */
810 ev_page_cache_get_size (view->page_cache, page,
814 compute_border (view, width, height, border);
815 page_area->width = width + border->left + border->right;
816 page_area->height = height + border->top + border->bottom;
818 if (view->presentation) {
819 page_area->x = (MAX (0, widget->allocation.width - width))/2;
820 page_area->y = (MAX (0, widget->allocation.height - height))/2;
821 } else if (view->continuous) {
825 ev_page_cache_get_max_width (view->page_cache, view->rotation,
826 view->scale, &max_width);
827 max_width = max_width + border->left + border->right;
828 /* Get the location of the bounding box */
829 if (view->dual_page) {
830 x = view->spacing + (page % 2) * (max_width + view->spacing);
831 x = x + MAX (0, widget->allocation.width - (max_width * 2 + view->spacing * 3)) / 2;
833 x = x + (max_width - width - border->left - border->right);
836 x = x + MAX (0, widget->allocation.width - (width + view->spacing * 2)) / 2;
839 get_page_y_offset (view, page, view->scale, &y);
845 if (view->dual_page) {
846 gint width_2, height_2;
847 gint max_width = width;
848 gint max_height = height;
849 GtkBorder overall_border;
852 other_page = page ^ 1;
854 /* First, we get the bounding box of the two pages */
855 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
856 ev_page_cache_get_size (view->page_cache,
860 &width_2, &height_2);
863 if (height_2 > height)
864 max_height = height_2;
866 compute_border (view, max_width, max_height, &overall_border);
868 /* Find the offsets */
872 /* Adjust for being the left or right page */
874 x = x + max_width - width;
876 x = x + (max_width + overall_border.left + overall_border.right) + view->spacing;
878 y = y + (max_height - height)/2;
880 /* Adjust for extra allocation */
881 x = x + MAX (0, widget->allocation.width -
882 ((max_width + overall_border.left + overall_border.right) * 2 + view->spacing * 3))/2;
883 y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
888 /* Adjust for extra allocation */
889 x = x + MAX (0, widget->allocation.width - (width + border->left + border->right + view->spacing * 2))/2;
890 y = y + MAX (0, widget->allocation.height - (height + border->top + border->bottom + view->spacing * 2))/2;
901 view_point_to_doc_point (EvView *view,
902 GdkPoint *view_point,
903 GdkRectangle *page_area,
907 *doc_point_x = (double) (view_point->x - page_area->x) / view->scale;
908 *doc_point_y = (double) (view_point->y - page_area->y) / view->scale;
912 view_rect_to_doc_rect (EvView *view,
913 GdkRectangle *view_rect,
914 GdkRectangle *page_area,
915 EvRectangle *doc_rect)
917 doc_rect->x1 = (double) (view_rect->x - page_area->x) / view->scale;
918 doc_rect->y1 = (double) (view_rect->y - page_area->y) / view->scale;
919 doc_rect->x2 = doc_rect->x1 + (double) view_rect->width / view->scale;
920 doc_rect->y2 = doc_rect->y1 + (double) view_rect->height / view->scale;
924 doc_rect_to_view_rect (EvView *view,
926 EvRectangle *doc_rect,
927 GdkRectangle *view_rect)
929 GdkRectangle page_area;
934 ev_page_cache_get_size (view->page_cache, page,
939 if (view->rotation == 0) {
942 w = doc_rect->x2 - doc_rect->x1;
943 h = doc_rect->y2 - doc_rect->y1;
944 } else if (view->rotation == 90) {
945 x = width - doc_rect->y2;
947 w = doc_rect->y2 - doc_rect->y1;
948 h = doc_rect->x2 - doc_rect->x1;
949 } else if (view->rotation == 180) {
950 x = width - doc_rect->x2;
951 y = height - doc_rect->y2;
952 w = doc_rect->x2 - doc_rect->x1;
953 h = doc_rect->y2 - doc_rect->y1;
954 } else if (view->rotation == 270) {
956 y = height - doc_rect->x2;
957 w = doc_rect->y2 - doc_rect->y1;
958 h = doc_rect->x2 - doc_rect->x1;
960 g_assert_not_reached ();
963 get_page_extents (view, page, &page_area, &border);
965 view_rect->x = x * view->scale + page_area.x;
966 view_rect->y = y * view->scale + page_area.y;
967 view_rect->width = w * view->scale;
968 view_rect->height = h * view->scale;
972 find_page_at_location (EvView *view,
981 if (view->document == NULL)
988 for (i = view->start_page; i <= view->end_page; i++) {
989 GdkRectangle page_area;
992 if (! get_page_extents (view, i, &page_area, &border))
995 if ((x >= page_area.x + border.left) &&
996 (x < page_area.x + page_area.width - border.right) &&
997 (y >= page_area.y + border.top) &&
998 (y < page_area.y + page_area.height - border.bottom)) {
1000 *x_offset = x - (page_area.x + border.left);
1001 *y_offset = y - (page_area.y + border.top);
1010 location_in_text (EvView *view,
1016 gint x_offset = 0, y_offset = 0;
1018 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1023 region = ev_pixbuf_cache_get_text_mapping (view->pixbuf_cache, page);
1026 return gdk_region_point_in (region, x_offset / view->scale, y_offset / view->scale);
1033 get_link_at_location (EvView *view,
1038 gint x_offset = 0, y_offset = 0;
1039 GList *link_mapping;
1041 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1046 link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
1049 return ev_link_mapping_find (link_mapping, x_offset / view->scale, y_offset / view->scale);
1054 /* FIXME: standardize this sometime */
1056 go_to_link (EvView *view, EvLink *link)
1062 type = ev_link_get_link_type (link);
1065 case EV_LINK_TYPE_TITLE:
1067 case EV_LINK_TYPE_PAGE:
1068 page = ev_link_get_page (link);
1069 ev_page_cache_set_current_page (view->page_cache, page);
1071 case EV_LINK_TYPE_EXTERNAL_URI:
1072 uri = ev_link_get_uri (link);
1073 gnome_vfs_url_show (uri);
1079 status_message_from_link (EvView *view, EvLink *link)
1085 type = ev_link_get_link_type (link);
1088 case EV_LINK_TYPE_TITLE:
1089 if (ev_link_get_title (link))
1090 msg = g_strdup (ev_link_get_title (link));
1092 case EV_LINK_TYPE_PAGE:
1093 page_label = ev_page_cache_get_page_label (view->page_cache, ev_link_get_page (link));
1094 msg = g_strdup_printf (_("Go to page %s"), page_label);
1095 g_free (page_label);
1097 case EV_LINK_TYPE_EXTERNAL_URI:
1098 msg = g_strdup (ev_link_get_uri (link));
1108 /*** GtkWidget implementation ***/
1111 ev_view_size_request_continuous_dual_page (EvView *view,
1112 GtkRequisition *requisition)
1118 ev_page_cache_get_max_width (view->page_cache, view->rotation,
1119 view->scale, &max_width);
1120 compute_border (view, max_width, max_width, &border);
1122 n_pages = ev_page_cache_get_n_pages (view->page_cache) + 1;
1124 requisition->width = (max_width + border.left + border.right) * 2 + (view->spacing * 3);
1125 get_page_y_offset (view, n_pages, view->scale, &requisition->height);
1127 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1128 requisition->width = 1;
1129 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1130 requisition->width = 1;
1131 /* FIXME: This could actually be set on one page docs or docs
1132 * with a strange aspect ratio. */
1133 /* requisition->height = 1;*/
1138 ev_view_size_request_continuous (EvView *view,
1139 GtkRequisition *requisition)
1146 ev_page_cache_get_max_width (view->page_cache, view->rotation,
1147 view->scale, &max_width);
1148 n_pages = ev_page_cache_get_n_pages (view->page_cache);
1149 compute_border (view, max_width, max_width, &border);
1151 requisition->width = max_width + (view->spacing * 2) + border.left + border.right;
1152 get_page_y_offset (view, n_pages, view->scale, &requisition->height);
1154 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1155 requisition->width = 1;
1156 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1157 requisition->width = 1;
1158 /* FIXME: This could actually be set on one page docs or docs
1159 * with a strange aspect ratio. */
1160 /* requisition->height = 1;*/
1165 ev_view_size_request_dual_page (EvView *view,
1166 GtkRequisition *requisition)
1171 /* Find the largest of the two. */
1172 ev_page_cache_get_size (view->page_cache,
1177 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache)) {
1178 gint width_2, height_2;
1179 ev_page_cache_get_size (view->page_cache,
1180 view->current_page + 1,
1183 &width_2, &height_2);
1184 if (width_2 > width) {
1189 compute_border (view, width, height, &border);
1191 requisition->width = ((width + border.left + border.right) * 2) +
1192 (view->spacing * 3);
1193 requisition->height = (height + border.top + border.bottom) +
1194 (view->spacing * 2);
1196 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1197 requisition->width = 1;
1198 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1199 requisition->width = 1;
1200 requisition->height = 1;
1205 ev_view_size_request_single_page (EvView *view,
1206 GtkRequisition *requisition)
1211 ev_page_cache_get_size (view->page_cache,
1216 compute_border (view, width, height, &border);
1218 requisition->width = width + border.left + border.right + (2 * view->spacing);
1219 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1221 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1222 requisition->width = 1;
1223 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1224 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1225 requisition->width = 1;
1226 requisition->height = 1;
1231 ev_view_size_request (GtkWidget *widget,
1232 GtkRequisition *requisition)
1234 EvView *view = EV_VIEW (widget);
1236 if (view->document == NULL) {
1237 requisition->width = 1;
1238 requisition->height = 1;
1242 if (view->presentation) {
1243 requisition->width = 1;
1244 requisition->height = 1;
1248 if (view->continuous && view->dual_page)
1249 ev_view_size_request_continuous_dual_page (view, requisition);
1250 else if (view->continuous)
1251 ev_view_size_request_continuous (view, requisition);
1252 else if (view->dual_page)
1253 ev_view_size_request_dual_page (view, requisition);
1255 ev_view_size_request_single_page (view, requisition);
1259 ev_view_size_allocate (GtkWidget *widget,
1260 GtkAllocation *allocation)
1262 EvView *view = EV_VIEW (widget);
1264 if (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
1265 view->sizing_mode == EV_SIZING_BEST_FIT) {
1267 g_signal_emit (view, signals[SIGNAL_ZOOM_INVALID], 0);
1269 ev_view_size_request (widget, &widget->requisition);
1272 view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
1273 view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
1275 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
1276 view->pending_resize = FALSE;
1279 view_update_range_and_current_page (view);
1281 GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
1285 ev_view_realize (GtkWidget *widget)
1287 EvView *view = EV_VIEW (widget);
1288 GdkWindowAttr attributes;
1290 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
1293 attributes.window_type = GDK_WINDOW_CHILD;
1294 attributes.wclass = GDK_INPUT_OUTPUT;
1295 attributes.visual = gtk_widget_get_visual (widget);
1296 attributes.colormap = gtk_widget_get_colormap (widget);
1298 attributes.x = widget->allocation.x;
1299 attributes.y = widget->allocation.y;
1300 attributes.width = widget->allocation.width;
1301 attributes.height = widget->allocation.height;
1302 attributes.event_mask = GDK_EXPOSURE_MASK |
1303 GDK_BUTTON_PRESS_MASK |
1304 GDK_BUTTON_RELEASE_MASK |
1306 GDK_KEY_PRESS_MASK |
1307 GDK_POINTER_MOTION_MASK |
1308 GDK_LEAVE_NOTIFY_MASK;
1310 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1312 GDK_WA_X | GDK_WA_Y |
1315 gdk_window_set_user_data (widget->window, widget);
1316 widget->style = gtk_style_attach (widget->style, widget->window);
1318 if (view->presentation)
1319 gdk_window_set_background (widget->window, &widget->style->black);
1321 gdk_window_set_background (widget->window, &widget->style->mid [GTK_STATE_NORMAL]);
1325 ev_view_unrealize (GtkWidget *widget)
1327 GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
1331 ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event)
1333 EvView *view = EV_VIEW (widget);
1335 if ((event->state & GDK_CONTROL_MASK) != 0) {
1337 ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1339 if (event->direction == GDK_SCROLL_UP ||
1340 event->direction == GDK_SCROLL_LEFT) {
1341 if (ev_view_can_zoom_in (view)) {
1342 ev_view_zoom_in (view);
1345 if (ev_view_can_zoom_out (view)) {
1346 ev_view_zoom_out (view);
1352 if ((event->state & GDK_SHIFT_MASK) != 0) {
1353 if (event->direction == GDK_SCROLL_UP)
1354 event->direction = GDK_SCROLL_LEFT;
1355 if (event->direction == GDK_SCROLL_DOWN)
1356 event->direction = GDK_SCROLL_RIGHT;
1362 static EvViewSelection *
1363 find_selection_for_page (EvView *view,
1368 for (list = view->selection_info.selections; list != NULL; list = list->next) {
1369 EvViewSelection *selection;
1371 selection = (EvViewSelection *) list->data;
1373 if (selection->page == page)
1381 ev_view_expose_event (GtkWidget *widget,
1382 GdkEventExpose *event)
1384 EvView *view = EV_VIEW (widget);
1387 if (view->document == NULL)
1390 for (i = view->start_page; i <= view->end_page; i++) {
1391 GdkRectangle page_area;
1394 if (!get_page_extents (view, i, &page_area, &border))
1397 page_area.x -= view->scroll_x;
1398 page_area.y -= view->scroll_y;
1400 draw_one_page (view, i, &page_area, &border, &(event->area));
1402 if (EV_IS_DOCUMENT_FIND (view->document))
1403 highlight_find_results (view, i);
1410 ev_view_button_press_event (GtkWidget *widget,
1411 GdkEventButton *event)
1413 EvView *view = EV_VIEW (widget);
1415 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
1416 gtk_widget_grab_focus (widget);
1419 view->pressed_button = event->button;
1421 switch (event->button) {
1423 if (view->selection_info.selections) {
1424 clear_selection (view);
1425 gtk_widget_queue_draw (widget);
1428 view->selection_info.start.x = event->x + view->scroll_x;
1429 view->selection_info.start.y = event->y + view->scroll_y;
1432 /* use root coordinates as reference point because
1433 * scrolling changes window relative coordinates */
1434 view->drag_info.start.x = event->x_root;
1435 view->drag_info.start.y = event->y_root;
1436 view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment);
1437 view->drag_info.vadj = gtk_adjustment_get_value (view->vadjustment);
1439 ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
1449 selection_update_idle_cb (EvView *view)
1452 point.x = view->motion_x;
1453 point.y = view->motion_y;
1454 compute_selections (view, &view->selection_info.start, &point);
1456 view->selection_update_id = 0;
1461 ev_view_motion_notify_event (GtkWidget *widget,
1462 GdkEventMotion *event)
1464 EvView *view = EV_VIEW (widget);
1466 if (!view->document)
1469 /* For the Evince 0.4.x release, we limit selection to un-rotated
1472 if (view->pressed_button == 1 &&
1473 view->rotation == 0) {
1474 view->selection_info.in_selection = TRUE;
1475 view->motion_x = event->x + view->scroll_x;
1476 view->motion_y = event->y + view->scroll_y;
1478 /* Queue an idle to handle the motion. We do this because
1479 * handling any selection events in the motion could be slower
1480 * than new motion events reach us. We always put it in the
1481 * idle to make sure we catch up and don't visibly lag the
1483 if (! view->selection_update_id)
1484 view->selection_update_id = g_idle_add ((GSourceFunc)selection_update_idle_cb, view);
1487 } else if (view->pressed_button == 2) {
1488 if (!view->drag_info.in_drag) {
1491 start = gtk_drag_check_threshold (widget,
1492 view->drag_info.start.x,
1493 view->drag_info.start.y,
1496 view->drag_info.in_drag = start;
1499 if (view->drag_info.in_drag) {
1501 gdouble dhadj_value, dvadj_value;
1503 dx = event->x_root - view->drag_info.start.x;
1504 dy = event->y_root - view->drag_info.start.y;
1506 dhadj_value = view->hadjustment->page_size *
1507 (gdouble)dx / widget->allocation.width;
1508 dvadj_value = view->vadjustment->page_size *
1509 (gdouble)dy / widget->allocation.height;
1511 /* clamp scrolling to visible area */
1512 gtk_adjustment_set_value (view->hadjustment,
1513 MIN(view->drag_info.hadj - dhadj_value,
1514 view->hadjustment->upper -
1515 view->hadjustment->page_size));
1516 gtk_adjustment_set_value (view->vadjustment,
1517 MIN(view->drag_info.vadj - dvadj_value,
1518 view->vadjustment->upper -
1519 view->vadjustment->page_size));
1523 /* For the Evince 0.4.x release, we limit links to un-rotated documents
1526 } else if (view->pressed_button <= 0 &&
1527 view->rotation == 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, i, &rectangle);
1699 doc_rect_to_view_rect (view, page, &rectangle, &view_rectangle);
1700 draw_rubberband (GTK_WIDGET (view), GTK_WIDGET(view)->window,
1701 &view_rectangle, alpha);
1706 draw_one_page (EvView *view,
1708 GdkRectangle *page_area,
1710 GdkRectangle *expose_area)
1713 GdkPixbuf *current_pixbuf;
1714 GdkRectangle overlap;
1715 GdkRectangle real_page_area;
1716 EvViewSelection *selection;
1718 g_assert (view->document);
1719 if (! gdk_rectangle_intersect (page_area, expose_area, &overlap))
1722 selection = find_selection_for_page (view, page);
1723 ev_page_cache_get_size (view->page_cache,
1724 page, view->rotation,
1727 /* Render the document itself */
1728 real_page_area = *page_area;
1730 real_page_area.x += border->left;
1731 real_page_area.y += border->top;
1732 real_page_area.width -= (border->left + border->right);
1733 real_page_area.height -= (border->top + border->bottom);
1735 ev_document_misc_paint_one_page (GTK_WIDGET(view)->window,
1739 if (gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) {
1740 GdkPixbuf *selection_pixbuf = NULL;
1741 GdkPixbuf *scaled_image;
1742 GdkPixbuf *scaled_selection;
1744 current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, page);
1746 /* Get the selection pixbuf iff we have something to draw */
1747 if (current_pixbuf && view->selection_mode == EV_VIEW_SELECTION_TEXT && selection)
1748 selection_pixbuf = ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache,
1753 if (current_pixbuf == NULL)
1754 scaled_image = NULL;
1755 else if (width == gdk_pixbuf_get_width (current_pixbuf) &&
1756 height == gdk_pixbuf_get_height (current_pixbuf))
1757 scaled_image = g_object_ref (current_pixbuf);
1759 /* FIXME: We don't want to scale the whole area, just the right
1761 scaled_image = gdk_pixbuf_scale_simple (current_pixbuf,
1763 GDK_INTERP_NEAREST);
1765 if (selection_pixbuf == NULL)
1766 scaled_selection = NULL;
1767 else if (width == gdk_pixbuf_get_width (selection_pixbuf) &&
1768 height == gdk_pixbuf_get_height (selection_pixbuf))
1769 scaled_selection = g_object_ref (selection_pixbuf);
1771 /* FIXME: We don't want to scale the whole area, just the right
1773 scaled_selection = gdk_pixbuf_scale_simple (selection_pixbuf,
1775 GDK_INTERP_NEAREST);
1778 gdk_draw_pixbuf (GTK_WIDGET(view)->window,
1779 GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
1781 overlap.x - real_page_area.x,
1782 overlap.y - real_page_area.y,
1783 overlap.x, overlap.y,
1784 overlap.width, overlap.height,
1785 GDK_RGB_DITHER_NORMAL,
1787 g_object_unref (scaled_image);
1790 if (scaled_selection) {
1791 gdk_draw_pixbuf (GTK_WIDGET(view)->window,
1792 GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
1794 overlap.x - real_page_area.x,
1795 overlap.y - real_page_area.y,
1796 overlap.x, overlap.y,
1797 overlap.width, overlap.height,
1798 GDK_RGB_DITHER_NORMAL,
1800 g_object_unref (scaled_selection);
1805 /*** GObject functions ***/
1808 ev_view_finalize (GObject *object)
1810 EvView *view = EV_VIEW (object);
1814 g_free (view->status);
1815 g_free (view->find_status);
1817 clear_selection (view);
1819 G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
1823 ev_view_destroy (GtkObject *object)
1825 EvView *view = EV_VIEW (object);
1827 if (view->document) {
1828 g_object_unref (view->document);
1829 view->document = NULL;
1831 if (view->pixbuf_cache) {
1832 g_object_unref (view->pixbuf_cache);
1833 view->pixbuf_cache = NULL;
1835 ev_view_set_scroll_adjustments (view, NULL, NULL);
1837 GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
1841 ev_view_set_property (GObject *object,
1843 const GValue *value,
1846 EvView *view = EV_VIEW (object);
1850 case PROP_CONTINUOUS:
1851 ev_view_set_continuous (view, g_value_get_boolean (value));
1853 case PROP_DUAL_PAGE:
1854 ev_view_set_dual_page (view, g_value_get_boolean (value));
1856 case PROP_FULLSCREEN:
1857 ev_view_set_fullscreen (view, g_value_get_boolean (value));
1859 case PROP_PRESENTATION:
1860 ev_view_set_presentation (view, g_value_get_boolean (value));
1862 case PROP_SIZING_MODE:
1863 ev_view_set_sizing_mode (view, g_value_get_enum (value));
1866 ev_view_set_zoom (view, g_value_get_double (value), FALSE);
1869 ev_view_set_rotation (view, g_value_get_int (value));
1872 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1877 ev_view_get_property (GObject *object,
1882 EvView *view = EV_VIEW (object);
1887 g_value_set_string (value, view->status);
1889 case PROP_FIND_STATUS:
1890 g_value_set_string (value, view->status);
1892 case PROP_CONTINUOUS:
1893 g_value_set_boolean (value, view->continuous);
1895 case PROP_DUAL_PAGE:
1896 g_value_set_boolean (value, view->dual_page);
1898 case PROP_FULLSCREEN:
1899 g_value_set_boolean (value, view->fullscreen);
1901 case PROP_PRESENTATION:
1902 g_value_set_boolean (value, view->presentation);
1904 case PROP_SIZING_MODE:
1905 g_value_set_enum (value, view->sizing_mode);
1908 g_value_set_double (value, view->scale);
1911 g_value_set_int (value, view->rotation);
1914 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1919 ev_view_class_init (EvViewClass *class)
1921 GObjectClass *object_class = G_OBJECT_CLASS (class);
1922 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
1923 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
1924 GtkBindingSet *binding_set;
1926 object_class->finalize = ev_view_finalize;
1927 object_class->set_property = ev_view_set_property;
1928 object_class->get_property = ev_view_get_property;
1930 widget_class->expose_event = ev_view_expose_event;
1931 widget_class->button_press_event = ev_view_button_press_event;
1932 widget_class->motion_notify_event = ev_view_motion_notify_event;
1933 widget_class->button_release_event = ev_view_button_release_event;
1934 widget_class->focus_in_event = ev_view_focus_in;
1935 widget_class->focus_out_event = ev_view_focus_out;
1936 widget_class->size_request = ev_view_size_request;
1937 widget_class->size_allocate = ev_view_size_allocate;
1938 widget_class->realize = ev_view_realize;
1939 widget_class->unrealize = ev_view_unrealize;
1940 widget_class->scroll_event = ev_view_scroll_event;
1941 widget_class->leave_notify_event = ev_view_leave_notify_event;
1942 widget_class->style_set = ev_view_style_set;
1943 gtk_object_class->destroy = ev_view_destroy;
1945 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
1946 class->binding_activated = ev_view_binding_activated;
1948 widget_class->set_scroll_adjustments_signal =
1949 g_signal_new ("set-scroll-adjustments",
1950 G_OBJECT_CLASS_TYPE (object_class),
1951 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1952 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
1954 ev_marshal_VOID__OBJECT_OBJECT,
1956 GTK_TYPE_ADJUSTMENT,
1957 GTK_TYPE_ADJUSTMENT);
1959 signals[SIGNAL_BINDING_ACTIVATED] = g_signal_new ("binding_activated",
1960 G_TYPE_FROM_CLASS (object_class),
1961 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1962 G_STRUCT_OFFSET (EvViewClass, binding_activated),
1964 ev_marshal_VOID__ENUM_BOOLEAN,
1966 GTK_TYPE_SCROLL_TYPE,
1969 signals[SIGNAL_ZOOM_INVALID] = g_signal_new ("zoom-invalid",
1970 G_TYPE_FROM_CLASS (object_class),
1971 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1972 G_STRUCT_OFFSET (EvViewClass, zoom_invalid),
1974 ev_marshal_VOID__VOID,
1975 G_TYPE_NONE, 0, G_TYPE_NONE);
1977 g_object_class_install_property (object_class,
1979 g_param_spec_string ("status",
1981 "The status message",
1985 g_object_class_install_property (object_class,
1987 g_param_spec_string ("find-status",
1988 "Find Status Message",
1989 "The find status message",
1993 g_object_class_install_property (object_class,
1995 g_param_spec_boolean ("continuous",
1997 "Continuous scrolling mode",
1999 G_PARAM_READWRITE));
2001 g_object_class_install_property (object_class,
2003 g_param_spec_boolean ("dual-page",
2005 "Two pages visible at once",
2007 G_PARAM_READWRITE));
2008 g_object_class_install_property (object_class,
2010 g_param_spec_boolean ("fullscreen",
2012 "Draw page in a fullscreen fashion",
2014 G_PARAM_READWRITE));
2015 g_object_class_install_property (object_class,
2017 g_param_spec_boolean ("presentation",
2019 "Draw page in presentation mode",
2021 G_PARAM_READWRITE));
2023 g_object_class_install_property (object_class,
2025 g_param_spec_enum ("sizing-mode",
2028 EV_TYPE_SIZING_MODE,
2029 EV_SIZING_FIT_WIDTH,
2030 G_PARAM_READWRITE));
2032 g_object_class_install_property (object_class,
2034 g_param_spec_double ("zoom",
2040 G_PARAM_READWRITE));
2041 g_object_class_install_property (object_class,
2043 g_param_spec_double ("rotation",
2049 G_PARAM_READWRITE));
2051 binding_set = gtk_binding_set_by_class (class);
2053 add_scroll_binding_keypad (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
2054 add_scroll_binding_keypad (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
2055 add_scroll_binding_keypad (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
2056 add_scroll_binding_keypad (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
2060 ev_view_init (EvView *view)
2062 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
2066 view->current_page = 0;
2067 view->pressed_button = -1;
2068 view->cursor = EV_VIEW_CURSOR_NORMAL;
2069 view->drag_info.in_drag = FALSE;
2070 view->selection_info.in_selection = FALSE;
2072 view->selection_mode = EV_VIEW_SELECTION_TEXT;
2073 view->continuous = TRUE;
2074 view->dual_page = FALSE;
2075 view->presentation = FALSE;
2076 view->fullscreen = FALSE;
2077 view->sizing_mode = EV_SIZING_FIT_WIDTH;
2078 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
2084 find_changed_cb (EvDocument *document, int page, EvView *view)
2086 jump_to_find_page (view, EV_VIEW_FIND_NEXT);
2087 jump_to_find_result (view);
2088 update_find_status_message (view);
2090 if (view->current_page == page)
2091 gtk_widget_queue_draw (GTK_WIDGET (view));
2095 job_finished_cb (EvPixbufCache *pixbuf_cache,
2098 gtk_widget_queue_draw (GTK_WIDGET (view));
2102 page_changed_cb (EvPageCache *page_cache,
2106 if (view->current_page != new_page) {
2108 view->current_page = new_page;
2109 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2110 gtk_widget_queue_resize (GTK_WIDGET (view));
2112 if (EV_IS_DOCUMENT_FIND (view->document)) {
2113 view->find_page = new_page;
2114 view->find_result = 0;
2115 update_find_status_message (view);
2120 static void on_adjustment_value_changed (GtkAdjustment *adjustment,
2125 if (! GTK_WIDGET_REALIZED (view))
2128 if (view->hadjustment) {
2129 dx = view->scroll_x - (int) view->hadjustment->value;
2130 view->scroll_x = (int) view->hadjustment->value;
2135 if (view->vadjustment) {
2136 dy = view->scroll_y - (int) view->vadjustment->value;
2137 view->scroll_y = (int) view->vadjustment->value;
2143 if (view->pending_resize)
2144 gtk_widget_queue_draw (GTK_WIDGET (view));
2146 gdk_window_scroll (GTK_WIDGET (view)->window, dx, dy);
2150 view_update_range_and_current_page (view);
2158 view = g_object_new (EV_TYPE_VIEW, NULL);
2164 setup_caches (EvView *view)
2166 view->page_cache = ev_page_cache_get (view->document);
2167 g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
2168 view->pixbuf_cache = ev_pixbuf_cache_new (GTK_WIDGET (view), view->document);
2169 g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
2173 clear_caches (EvView *view)
2175 if (view->pixbuf_cache) {
2176 g_object_unref (view->pixbuf_cache);
2177 view->pixbuf_cache = NULL;
2180 if (view->page_cache) {
2181 g_object_unref (view->page_cache);
2182 view->page_cache = NULL;
2187 ev_view_set_document (EvView *view,
2188 EvDocument *document)
2190 g_return_if_fail (EV_IS_VIEW (view));
2192 if (document != view->document) {
2193 clear_caches (view);
2195 if (view->document) {
2196 g_signal_handlers_disconnect_by_func (view->document,
2199 g_object_unref (view->document);
2200 view->page_cache = NULL;
2204 view->document = document;
2205 view->find_page = 0;
2206 view->find_result = 0;
2208 if (view->document) {
2209 g_object_ref (view->document);
2210 if (EV_IS_DOCUMENT_FIND (view->document)) {
2211 g_signal_connect (view->document,
2213 G_CALLBACK (find_changed_cb),
2217 setup_caches (view);
2220 gtk_widget_queue_resize (GTK_WIDGET (view));
2224 /*** Zoom and sizing mode ***/
2226 #define EPSILON 0.0000001
2228 ev_view_set_zoom (EvView *view,
2235 scale = view->scale * factor;
2239 scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
2241 if (ABS (view->scale - scale) < EPSILON)
2244 view->scale = scale;
2245 view->pending_resize = TRUE;
2247 gtk_widget_queue_resize (GTK_WIDGET (view));
2249 g_object_notify (G_OBJECT (view), "zoom");
2253 ev_view_get_zoom (EvView *view)
2259 ev_view_get_continuous (EvView *view)
2261 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2263 return view->continuous;
2267 ev_view_set_continuous (EvView *view,
2268 gboolean continuous)
2270 g_return_if_fail (EV_IS_VIEW (view));
2272 continuous = continuous != FALSE;
2274 if (view->continuous != continuous) {
2275 view->continuous = continuous;
2276 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2277 gtk_widget_queue_resize (GTK_WIDGET (view));
2280 g_object_notify (G_OBJECT (view), "continuous");
2284 ev_view_get_dual_page (EvView *view)
2286 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2288 return view->dual_page;
2292 ev_view_set_dual_page (EvView *view,
2295 g_return_if_fail (EV_IS_VIEW (view));
2297 dual_page = dual_page != FALSE;
2299 if (view->dual_page == dual_page)
2302 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2303 view->dual_page = dual_page;
2304 /* FIXME: if we're keeping the pixbuf cache around, we should extend the
2305 * preload_cache_size to be 2 if dual_page is set.
2307 gtk_widget_queue_resize (GTK_WIDGET (view));
2309 g_object_notify (G_OBJECT (view), "dual-page");
2313 ev_view_set_fullscreen (EvView *view,
2314 gboolean fullscreen)
2316 g_return_if_fail (EV_IS_VIEW (view));
2318 fullscreen = fullscreen != FALSE;
2320 if (view->fullscreen == fullscreen)
2323 view->fullscreen = fullscreen;
2324 gtk_widget_queue_resize (GTK_WIDGET (view));
2326 g_object_notify (G_OBJECT (view), "fullscreen");
2330 ev_view_get_fullscreen (EvView *view)
2332 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2334 return view->fullscreen;
2338 ev_view_set_presentation (EvView *view,
2339 gboolean presentation)
2341 g_return_if_fail (EV_IS_VIEW (view));
2343 presentation = presentation != FALSE;
2345 if (view->presentation == presentation)
2348 view->presentation = presentation;
2349 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2350 gtk_widget_queue_resize (GTK_WIDGET (view));
2352 if (GTK_WIDGET_REALIZED (view)) {
2353 if (view->presentation)
2354 gdk_window_set_background (GTK_WIDGET(view)->window,
2355 >K_WIDGET (view)->style->black);
2357 gdk_window_set_background (GTK_WIDGET(view)->window,
2358 >K_WIDGET (view)->style->mid [GTK_STATE_NORMAL]);
2362 g_object_notify (G_OBJECT (view), "presentation");
2366 ev_view_get_presentation (EvView *view)
2368 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2370 return view->presentation;
2374 ev_view_set_sizing_mode (EvView *view,
2375 EvSizingMode sizing_mode)
2377 g_return_if_fail (EV_IS_VIEW (view));
2379 if (view->sizing_mode == sizing_mode)
2382 view->sizing_mode = sizing_mode;
2383 gtk_widget_queue_resize (GTK_WIDGET (view));
2385 g_object_notify (G_OBJECT (view), "sizing-mode");
2389 ev_view_get_sizing_mode (EvView *view)
2391 g_return_val_if_fail (EV_IS_VIEW (view), EV_SIZING_FREE);
2393 return view->sizing_mode;
2397 ev_view_can_zoom_in (EvView *view)
2399 return view->scale * ZOOM_IN_FACTOR <= MAX_SCALE;
2403 ev_view_can_zoom_out (EvView *view)
2405 return view->scale * ZOOM_OUT_FACTOR >= MIN_SCALE;
2409 ev_view_zoom_in (EvView *view)
2411 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2413 view->pending_scroll = SCROLL_TO_CENTER;
2414 ev_view_set_zoom (view, ZOOM_IN_FACTOR, TRUE);
2418 ev_view_zoom_out (EvView *view)
2420 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2422 view->pending_scroll = SCROLL_TO_CENTER;
2423 ev_view_set_zoom (view, ZOOM_OUT_FACTOR, TRUE);
2427 ev_view_rotate_right (EvView *view)
2429 int rotation = view->rotation + 90;
2431 if (rotation >= 360) {
2435 ev_view_set_rotation (view, rotation);
2439 ev_view_rotate_left (EvView *view)
2441 int rotation = view->rotation - 90;
2447 ev_view_set_rotation (view, rotation);
2451 ev_view_set_rotation (EvView *view, int rotation)
2453 view->rotation = rotation;
2455 if (view->pixbuf_cache) {
2456 ev_pixbuf_cache_clear (view->pixbuf_cache);
2457 gtk_widget_queue_resize (GTK_WIDGET (view));
2461 clear_selection (view);
2463 g_object_notify (G_OBJECT (view), "rotation");
2467 ev_view_get_rotation (EvView *view)
2469 return view->rotation;
2473 zoom_for_size_fit_width (int doc_width,
2481 scale = (double)target_width / doc_width;
2483 if (doc_height * scale > target_height)
2484 scale = (double) (target_width - vsb_width) / doc_width;
2490 zoom_for_size_best_fit (int doc_width,
2500 w_scale = (double)target_width / doc_width;
2501 h_scale = (double)target_height / doc_height;
2503 if (doc_height * w_scale > target_height)
2504 w_scale = (double) (target_width - vsb_width) / doc_width;
2505 if (doc_width * h_scale > target_width)
2506 h_scale = (double) (target_height - hsb_width) / doc_height;
2508 return MIN (w_scale, h_scale);
2513 ev_view_zoom_for_size_presentation (EvView *view,
2517 int doc_width, doc_height;
2520 ev_page_cache_get_size (view->page_cache,
2526 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, 0, 0);
2527 ev_view_set_zoom (view, scale, FALSE);
2531 ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
2537 int doc_width, doc_height;
2541 ev_page_cache_get_max_width (view->page_cache,
2545 ev_page_cache_get_max_height (view->page_cache,
2549 compute_border (view, doc_width, doc_height, &border);
2551 doc_width = doc_width * 2;
2552 width -= (2 * (border.left + border.right) + 3 * view->spacing);
2553 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2555 /* FIXME: We really need to calculate the overall height here, not the
2556 * page height. We assume there's always a vertical scrollbar for
2557 * now. We need to fix this. */
2558 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2559 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
2560 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2561 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
2563 g_assert_not_reached ();
2565 ev_view_set_zoom (view, scale, FALSE);
2569 ev_view_zoom_for_size_continuous (EvView *view,
2575 int doc_width, doc_height;
2579 ev_page_cache_get_max_width (view->page_cache,
2583 ev_page_cache_get_max_height (view->page_cache,
2587 compute_border (view, doc_width, doc_height, &border);
2589 width -= (border.left + border.right + 2 * view->spacing);
2590 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2592 /* FIXME: We really need to calculate the overall height here, not the
2593 * page height. We assume there's always a vertical scrollbar for
2594 * now. We need to fix this. */
2595 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2596 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
2597 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2598 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
2600 g_assert_not_reached ();
2602 ev_view_set_zoom (view, scale, FALSE);
2606 ev_view_zoom_for_size_dual_page (EvView *view,
2613 gint doc_width, doc_height;
2617 other_page = view->current_page ^ 1;
2619 /* Find the largest of the two. */
2620 ev_page_cache_get_size (view->page_cache,
2624 &doc_width, &doc_height);
2626 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
2627 gint width_2, height_2;
2628 ev_page_cache_get_size (view->page_cache,
2632 &width_2, &height_2);
2633 if (width_2 > doc_width)
2634 doc_width = width_2;
2635 if (height_2 > doc_height)
2636 doc_height = height_2;
2638 compute_border (view, doc_width, doc_height, &border);
2640 doc_width = doc_width * 2;
2641 width -= ((border.left + border.right)* 2 + 3 * view->spacing);
2642 height -= (border.top + border.bottom + 2 * view->spacing);
2644 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2645 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
2646 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2647 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
2649 g_assert_not_reached ();
2651 ev_view_set_zoom (view, scale, FALSE);
2655 ev_view_zoom_for_size_single_page (EvView *view,
2661 int doc_width, doc_height;
2665 ev_page_cache_get_size (view->page_cache,
2671 /* Get an approximate border */
2672 compute_border (view, width, height, &border);
2674 width -= (border.left + border.right + 2 * view->spacing);
2675 height -= (border.top + border.bottom + 2 * view->spacing);
2677 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2678 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
2679 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2680 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
2682 g_assert_not_reached ();
2684 ev_view_set_zoom (view, scale, FALSE);
2688 ev_view_set_zoom_for_size (EvView *view,
2694 g_return_if_fail (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
2695 view->sizing_mode == EV_SIZING_BEST_FIT);
2696 g_return_if_fail (width >= 0);
2697 g_return_if_fail (height >= 0);
2699 if (view->document == NULL)
2702 if (view->presentation)
2703 ev_view_zoom_for_size_presentation (view, width, height);
2704 else if (view->continuous && view->dual_page)
2705 ev_view_zoom_for_size_continuous_and_dual_page (view, width, height, vsb_width, hsb_height);
2706 else if (view->continuous)
2707 ev_view_zoom_for_size_continuous (view, width, height, vsb_width, hsb_height);
2708 else if (view->dual_page)
2709 ev_view_zoom_for_size_dual_page (view, width, height, vsb_width, hsb_height);
2711 ev_view_zoom_for_size_single_page (view, width, height, vsb_width, hsb_height);
2714 /*** Status text messages ***/
2717 ev_view_get_status (EvView *view)
2719 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2721 return view->status;
2725 ev_view_set_status (EvView *view, const char *message)
2727 g_return_if_fail (EV_IS_VIEW (view));
2729 if (message != view->status) {
2730 g_free (view->status);
2731 view->status = g_strdup (message);
2732 g_object_notify (G_OBJECT (view), "status");
2737 update_find_status_message (EvView *view)
2741 if (view->current_page == view->find_page) {
2744 results = ev_document_find_get_n_results
2745 (EV_DOCUMENT_FIND (view->document),
2746 view->current_page);
2747 /* TRANS: Sometimes this could be better translated as
2748 "%d hit(s) on this page". Therefore this string
2749 contains plural cases. */
2750 message = g_strdup_printf (ngettext ("%d found on this page",
2751 "%d found on this page",
2757 percent = ev_document_find_get_progress
2758 (EV_DOCUMENT_FIND (view->document));
2759 if (percent >= (1.0 - 1e-10)) {
2760 message = g_strdup (_("Not found"));
2762 message = g_strdup_printf (_("%3d%% remaining to search"),
2763 (int) ((1.0 - percent) * 100));
2767 ev_view_set_find_status (view, message);
2772 ev_view_get_find_status (EvView *view)
2774 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2776 return view->find_status;
2780 ev_view_set_find_status (EvView *view, const char *message)
2782 g_return_if_fail (EV_IS_VIEW (view));
2784 g_free (view->find_status);
2785 view->find_status = g_strdup (message);
2786 g_object_notify (G_OBJECT (view), "find-status");
2792 jump_to_find_result (EvView *view)
2794 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2796 GdkRectangle view_rect;
2798 int page = view->find_page;
2800 n_results = ev_document_find_get_n_results (find, page);
2802 if (n_results > 0 && view->find_result < n_results) {
2803 ev_document_find_get_result
2804 (find, page, view->find_result, &rect);
2806 doc_rect_to_view_rect (view, page, &rect, &view_rect);
2807 ensure_rectangle_is_visible (view, &view_rect);
2812 jump_to_find_page (EvView *view, EvViewFindDirection direction)
2816 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2818 for (i = 0; i < n_pages; i++) {
2822 if (direction == EV_VIEW_FIND_NEXT)
2823 page = view->find_page + i;
2825 page = view->find_page - i;
2828 if (page >= n_pages) {
2829 page = page - n_pages;
2832 page = page + n_pages;
2834 has_results = ev_document_find_page_has_results
2835 (EV_DOCUMENT_FIND (view->document), page);
2836 if (has_results == -1) {
2837 view->find_page = page;
2839 } else if (has_results == 1) {
2840 ev_page_cache_set_current_page (view->page_cache, page);
2847 ev_view_can_find_next (EvView *view)
2851 if (EV_IS_DOCUMENT_FIND (view->document)) {
2852 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2854 n_results = ev_document_find_get_n_results (find, view->current_page);
2857 return n_results > 0;
2861 ev_view_find_next (EvView *view)
2863 int n_results, n_pages;
2864 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2866 n_results = ev_document_find_get_n_results (find, view->current_page);
2868 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2870 view->find_result++;
2872 if (view->find_result >= n_results) {
2874 view->find_result = 0;
2876 if (view->find_page >= n_pages) {
2877 view->find_page = 0;
2880 jump_to_find_page (view, EV_VIEW_FIND_NEXT);
2881 jump_to_find_result (view);
2883 jump_to_find_result (view);
2884 gtk_widget_queue_draw (GTK_WIDGET (view));
2889 ev_view_find_previous (EvView *view)
2891 int n_results, n_pages;
2892 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2893 EvPageCache *page_cache;
2895 page_cache = ev_page_cache_get (view->document);
2897 n_results = ev_document_find_get_n_results (find, view->current_page);
2899 n_pages = ev_page_cache_get_n_pages (page_cache);
2901 view->find_result--;
2903 if (view->find_result < 0) {
2906 if (view->find_page < 0) {
2907 view->find_page = n_pages - 1;
2910 jump_to_find_page (view, EV_VIEW_FIND_PREV);
2911 view->find_result = ev_document_find_get_n_results (find, view->current_page) - 1;
2912 jump_to_find_result (view);
2914 jump_to_find_result (view);
2915 gtk_widget_queue_draw (GTK_WIDGET (view));
2919 /*** Selections ***/
2921 /* compute_new_selection_rect/text calculates the area currently selected by
2922 * view_rect. each handles a different mode;
2925 compute_new_selection_rect (EvView *view,
2929 GdkRectangle view_rect;
2933 g_assert (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE);
2935 view_rect.x = MIN (start->x, stop->x);
2936 view_rect.y = MIN (start->y, stop->y);
2937 view_rect.width = MAX (start->x, stop->x) - view_rect.x;
2938 view_rect.width = MAX (start->y, stop->y) - view_rect.y;
2940 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2942 for (i = 0; i < n_pages; i++) {
2943 GdkRectangle page_area;
2946 if (get_page_extents (view, i, &page_area, &border)) {
2947 GdkRectangle overlap;
2949 if (gdk_rectangle_intersect (&page_area, &view_rect, &overlap)) {
2950 EvViewSelection *selection;
2952 selection = g_new0 (EvViewSelection, 1);
2953 selection->page = i;
2954 view_rect_to_doc_rect (view, &overlap, &page_area,
2955 &(selection->rect));
2957 list = g_list_append (list, selection);
2966 gdk_rectangle_point_in (GdkRectangle *rectangle,
2969 return rectangle->x <= point->x &&
2970 rectangle->y <= point->y &&
2971 point->x < rectangle->x + rectangle->width &&
2972 point->y < rectangle->y + rectangle->height;
2976 compute_new_selection_text (EvView *view,
2980 int n_pages, i, first, last;
2982 EvViewSelection *selection;
2984 int start_page, end_page;
2986 g_assert (view->selection_mode == EV_VIEW_SELECTION_TEXT);
2988 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2990 /* First figure out the range of pages the selection
2994 if (view->continuous) {
2997 } else if (view->dual_page) {
2998 start_page = view->start_page;
2999 end_page = view->end_page + 1;
3001 start_page = view->current_page;
3002 end_page = view->current_page + 1;
3005 for (i = start_page; i < end_page; i++) {
3006 GdkRectangle page_area;
3009 get_page_extents (view, i, &page_area, &border);
3010 if (gdk_rectangle_point_in (&page_area, start) ||
3011 gdk_rectangle_point_in (&page_area, stop)) {
3012 if (first == n_pages)
3021 /* Now create a list of EvViewSelection's for the affected
3022 * pages. This could be an empty list, a list of just one
3023 * page or a number of pages.*/
3024 for (i = first; i < last + 1; i++) {
3025 GdkRectangle page_area;
3029 ev_page_cache_get_size (view->page_cache, i,
3031 1.0, &width, &height);
3033 selection = g_new0 (EvViewSelection, 1);
3034 selection->page = i;
3035 selection->rect.x1 = selection->rect.y1 = 0;
3036 selection->rect.x2 = width;
3037 selection->rect.y2 = height;
3039 get_page_extents (view, i, &page_area, &border);
3041 if (gdk_rectangle_point_in (&page_area, start))
3047 view_point_to_doc_point (view, point, &page_area,
3048 &selection->rect.x1,
3049 &selection->rect.y1);
3051 /* If the selection is contained within just one page,
3052 * make sure we don't write 'start' into both points
3053 * in selection->rect. */
3058 view_point_to_doc_point (view, point, &page_area,
3059 &selection->rect.x2,
3060 &selection->rect.y2);
3062 list = g_list_append (list, selection);
3068 /* This function takes the newly calculated list, and figures out which regions
3069 * have changed. It then queues a redraw approporiately.
3072 merge_selection_region (EvView *view,
3076 GList *new_list_ptr, *old_list_ptr;
3078 /* Update the selection */
3079 old_list = ev_pixbuf_cache_get_selection_list (view->pixbuf_cache);
3080 g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
3081 view->selection_info.selections = new_list;
3082 ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, new_list);
3084 new_list_ptr = new_list;
3085 old_list_ptr = old_list;
3087 while (new_list_ptr || old_list_ptr) {
3088 EvViewSelection *old_sel, *new_sel;
3090 GdkRegion *region = NULL;
3092 new_sel = (new_list_ptr) ? (new_list_ptr->data) : NULL;
3093 old_sel = (old_list_ptr) ? (old_list_ptr->data) : NULL;
3095 /* Assume that the lists are in order, and we run through them
3096 * comparing them, one page at a time. We come out with the
3097 * first page we see. */
3098 if (new_sel && old_sel) {
3099 if (new_sel->page < old_sel->page) {
3100 new_list_ptr = new_list_ptr->next;
3102 } else if (new_sel->page > old_sel->page) {
3103 old_list_ptr = old_list_ptr->next;
3106 new_list_ptr = new_list_ptr->next;
3107 old_list_ptr = old_list_ptr->next;
3109 } else if (new_sel) {
3110 new_list_ptr = new_list_ptr->next;
3111 } else if (old_sel) {
3112 old_list_ptr = old_list_ptr->next;
3115 g_assert (new_sel || old_sel);
3117 /* is the page we're looking at on the screen?*/
3118 cur_page = new_sel ? new_sel->page : old_sel->page;
3119 if (cur_page < view->start_page || cur_page > view->end_page)
3122 /* seed the cache with a new page. We are going to need the new
3125 GdkRegion *tmp_region = NULL;
3126 ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache,
3131 new_sel->covered_region = gdk_region_copy (tmp_region);
3135 /* Now we figure out what needs redrawing */
3136 if (old_sel && new_sel) {
3137 if (old_sel->covered_region &&
3138 new_sel->covered_region) {
3139 /* We only want to redraw the areas that have
3140 * changed, so we xor the old and new regions
3141 * and redraw if it's different */
3142 region = gdk_region_copy (old_sel->covered_region);
3143 gdk_region_xor (region, new_sel->covered_region);
3144 if (gdk_region_empty (region)) {
3145 gdk_region_destroy (region);
3148 } else if (old_sel->covered_region) {
3149 region = gdk_region_copy (old_sel->covered_region);
3150 } else if (new_sel->covered_region) {
3151 region = gdk_region_copy (new_sel->covered_region);
3153 } else if (old_sel && !new_sel) {
3154 if (old_sel->covered_region && !gdk_region_empty (old_sel->covered_region)) {
3155 region = gdk_region_copy (old_sel->covered_region);
3157 } else if (!old_sel && new_sel) {
3158 if (new_sel->covered_region && !gdk_region_empty (new_sel->covered_region)) {
3159 region = gdk_region_copy (new_sel->covered_region);
3162 g_assert_not_reached ();
3165 /* Redraw the damaged region! */
3167 GdkRectangle page_area;
3170 get_page_extents (view, cur_page, &page_area, &border);
3171 gdk_region_offset (region,
3172 page_area.x + border.left - view->scroll_x,
3173 page_area.y + border.top - view->scroll_y);
3174 gdk_window_invalidate_region (GTK_WIDGET (view)->window, region, TRUE);
3175 gdk_region_destroy (region);
3179 /* Free the old list, now that we're done with it. */
3180 g_list_foreach (old_list, (GFunc) selection_free, NULL);
3184 compute_selections (EvView *view,
3190 if (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE)
3191 list = compute_new_selection_rect (view, start, stop);
3193 list = compute_new_selection_text (view, start, stop);
3194 merge_selection_region (view, list);
3197 /* Free's the selection. It's up to the caller to queue redraws if needed.
3200 selection_free (EvViewSelection *selection)
3202 if (selection->covered_region)
3203 gdk_region_destroy (selection->covered_region);
3208 clear_selection (EvView *view)
3210 g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
3211 view->selection_info.selections = NULL;
3212 view->selection_info.in_selection = FALSE;
3217 ev_view_select_all (EvView *view)
3221 /* Disable selection on rotated pages for the 0.4.0 series */
3222 if (view->rotation != 0)
3225 clear_selection (view);
3227 n_pages = ev_page_cache_get_n_pages (view->page_cache);
3228 for (i = 0; i < n_pages; i++) {
3230 EvViewSelection *selection;
3232 ev_page_cache_get_size (view->page_cache,
3235 1.0, &width, &height);
3237 selection = g_new0 (EvViewSelection, 1);
3238 selection->page = i;
3239 selection->rect.x1 = selection->rect.y1 = 0;
3240 selection->rect.x2 = width;
3241 selection->rect.y2 = height;
3243 view->selection_info.selections = g_list_append (view->selection_info.selections, selection);
3246 ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, view->selection_info.selections);
3247 gtk_widget_queue_draw (GTK_WIDGET (view));
3251 get_selected_text (EvView *ev_view)
3256 text = g_string_new (NULL);
3258 ev_document_doc_mutex_lock ();
3260 for (l = ev_view->selection_info.selections; l != NULL; l = l->next) {
3261 EvViewSelection *selection = (EvViewSelection *)l->data;
3264 tmp = ev_document_get_text (ev_view->document,
3267 g_string_append (text, tmp);
3271 ev_document_doc_mutex_unlock ();
3273 return g_string_free (text, FALSE);
3277 ev_view_copy (EvView *ev_view)
3279 GtkClipboard *clipboard;
3282 if (!ev_document_can_get_text (ev_view->document)) {
3286 text = get_selected_text (ev_view);
3287 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
3288 GDK_SELECTION_CLIPBOARD);
3289 gtk_clipboard_set_text (clipboard, text, -1);
3294 ev_view_primary_get_cb (GtkClipboard *clipboard,
3295 GtkSelectionData *selection_data,
3299 EvView *ev_view = EV_VIEW (data);
3302 if (!ev_document_can_get_text (ev_view->document)) {
3306 text = get_selected_text (ev_view);
3307 gtk_selection_data_set_text (selection_data, text, -1);
3312 ev_view_primary_clear_cb (GtkClipboard *clipboard,
3315 EvView *view = EV_VIEW (data);
3317 clear_selection (view);
3321 ev_view_update_primary_selection (EvView *ev_view)
3323 GtkClipboard *clipboard;
3325 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
3326 GDK_SELECTION_PRIMARY);
3328 if (ev_view->selection_info.selections) {
3329 if (!gtk_clipboard_set_with_owner (clipboard,
3331 G_N_ELEMENTS (targets),
3332 ev_view_primary_get_cb,
3333 ev_view_primary_clear_cb,
3334 G_OBJECT (ev_view)))
3335 ev_view_primary_clear_cb (clipboard, ev_view);
3337 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
3338 gtk_clipboard_clear (clipboard);
3342 /*** Cursor operations ***/
3345 ev_view_create_invisible_cursor(void)
3348 GdkColor black = { 0, 0, 0, 0 };
3349 static char bits[] = { 0x00 };
3351 empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
3353 return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
3357 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
3359 GdkCursor *cursor = NULL;
3360 GdkDisplay *display;
3363 if (view->cursor == new_cursor) {
3367 widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
3368 display = gtk_widget_get_display (widget);
3369 view->cursor = new_cursor;
3371 switch (new_cursor) {
3372 case EV_VIEW_CURSOR_NORMAL:
3373 gdk_window_set_cursor (widget->window, NULL);
3375 case EV_VIEW_CURSOR_IBEAM:
3376 cursor = gdk_cursor_new_for_display (display, GDK_XTERM);
3378 case EV_VIEW_CURSOR_LINK:
3379 cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
3381 case EV_VIEW_CURSOR_WAIT:
3382 cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
3384 case EV_VIEW_CURSOR_HIDDEN:
3385 cursor = ev_view_create_invisible_cursor ();
3387 case EV_VIEW_CURSOR_DRAG:
3388 cursor = gdk_cursor_new_for_display (display, GDK_FLEUR);
3393 gdk_window_set_cursor (widget->window, cursor);
3394 gdk_cursor_unref (cursor);
3400 ev_view_hide_cursor (EvView *view)
3402 ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
3406 ev_view_show_cursor (EvView *view)
3408 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
3411 /*** Enum description for usage in signal ***/
3414 ev_sizing_mode_get_type (void)
3416 static GType etype = 0;
3418 static const GEnumValue values[] = {
3419 { EV_SIZING_FIT_WIDTH, "EV_SIZING_FIT_WIDTH", "fit-width" },
3420 { EV_SIZING_BEST_FIT, "EV_SIZING_BEST_FIT", "best-fit" },
3421 { EV_SIZING_FREE, "EV_SIZING_FREE", "free" },
3424 etype = g_enum_register_static ("EvSizingMode", values);