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"
40 #include "ev-tooltip.h"
42 #define EV_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass))
43 #define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW))
44 #define EV_VIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass))
61 SIGNAL_BINDING_ACTIVATED,
71 TARGET_TEXT_BUFFER_CONTENTS
74 static const GtkTargetEntry targets[] = {
75 { "STRING", 0, TARGET_STRING },
76 { "TEXT", 0, TARGET_TEXT },
77 { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
78 { "UTF8_STRING", 0, TARGET_UTF8_STRING },
81 static guint signals[N_SIGNALS];
84 EV_VIEW_CURSOR_NORMAL,
88 EV_VIEW_CURSOR_HIDDEN,
95 } EvViewFindDirection;
97 #define ZOOM_IN_FACTOR 1.2
98 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
100 #define MIN_SCALE 0.05409
101 #define MAX_SCALE 4.0
103 /* Information for middle clicking and moving around the doc */
111 /* Information for handling selection */
113 gboolean in_selection;
119 SCROLL_TO_KEEP_POSITION,
120 SCROLL_TO_CURRENT_PAGE,
125 GtkWidget parent_instance;
127 EvDocument *document;
133 GtkAdjustment *hadjustment;
134 GtkAdjustment *vadjustment;
139 /* Information for middle clicking and dragging around. */
145 guint selection_update_id;
147 EvViewSelectionMode selection_mode;
148 SelectionInfo selection_info;
152 GtkWidget *link_tooltip;
154 EvPageCache *page_cache;
155 EvPixbufCache *pixbuf_cache;
161 EvJobRender *current_job;
173 gboolean presentation;
174 EvSizingMode sizing_mode;
176 PendingScroll pending_scroll;
177 gboolean pending_resize;
180 struct _EvViewClass {
181 GtkWidgetClass parent_class;
183 void (*set_scroll_adjustments) (EvView *view,
184 GtkAdjustment *hadjustment,
185 GtkAdjustment *vadjustment);
186 void (*binding_activated) (EvView *view,
187 GtkScrollType scroll,
188 gboolean horizontal);
189 void (*zoom_invalid) (EvView *view);
193 static void scroll_to_current_page (EvView *view,
194 GtkOrientation orientation);
195 static void ev_view_set_scroll_adjustments (EvView *view,
196 GtkAdjustment *hadjustment,
197 GtkAdjustment *vadjustment);
198 static void view_update_range_and_current_page (EvView *view);
199 static void set_scroll_adjustment (EvView *view,
200 GtkOrientation orientation,
201 GtkAdjustment *adjustment);
202 static void ev_view_set_scroll_adjustments (EvView *view,
203 GtkAdjustment *hadjustment,
204 GtkAdjustment *vadjustment);
205 static void add_scroll_binding_keypad (GtkBindingSet *binding_set,
207 GtkScrollType scroll,
208 gboolean horizontal);
209 static void ev_view_binding_activated (EvView *view,
210 GtkScrollType scroll,
211 gboolean horizontal);
212 static void ensure_rectangle_is_visible (EvView *view,
215 /*** Geometry computations ***/
216 static void compute_border (EvView *view,
220 static void get_page_y_offset (EvView *view,
224 static gboolean get_page_extents (EvView *view,
226 GdkRectangle *page_area,
228 static void view_rect_to_doc_rect (EvView *view,
229 GdkRectangle *view_rect,
230 GdkRectangle *page_area,
231 EvRectangle *doc_rect);
232 static void doc_rect_to_view_rect (EvView *view,
234 EvRectangle *doc_rect,
235 GdkRectangle *view_rect);
236 static void find_page_at_location (EvView *view,
244 static EvLink* get_link_at_location (EvView *view,
247 static void go_to_link (EvView *view,
249 static char* tip_from_link (EvView *view,
252 /*** GtkWidget implementation ***/
253 static void ev_view_size_request_continuous_dual_page (EvView *view,
254 GtkRequisition *requisition);
255 static void ev_view_size_request_continuous (EvView *view,
256 GtkRequisition *requisition);
257 static void ev_view_size_request_dual_page (EvView *view,
258 GtkRequisition *requisition);
259 static void ev_view_size_request_single_page (EvView *view,
260 GtkRequisition *requisition);
261 static void ev_view_size_request (GtkWidget *widget,
262 GtkRequisition *requisition);
263 static void ev_view_size_allocate (GtkWidget *widget,
264 GtkAllocation *allocation);
265 static void ev_view_realize (GtkWidget *widget);
266 static void ev_view_unrealize (GtkWidget *widget);
267 static gboolean ev_view_scroll_event (GtkWidget *widget,
268 GdkEventScroll *event);
269 static gboolean ev_view_expose_event (GtkWidget *widget,
270 GdkEventExpose *event);
271 static gboolean ev_view_button_press_event (GtkWidget *widget,
272 GdkEventButton *event);
273 static gboolean ev_view_motion_notify_event (GtkWidget *widget,
274 GdkEventMotion *event);
275 static gboolean ev_view_button_release_event (GtkWidget *widget,
276 GdkEventButton *event);
277 static gboolean ev_view_leave_notify_event (GtkWidget *widget,
278 GdkEventCrossing *event);
279 static void ev_view_style_set (GtkWidget *widget,
280 GtkStyle *old_style);
283 static guint32 ev_gdk_color_to_rgb (const GdkColor *color);
284 static void draw_rubberband (GtkWidget *widget,
286 const GdkRectangle *rect,
288 static void highlight_find_results (EvView *view,
290 static void draw_one_page (EvView *view,
292 GdkRectangle *page_area,
294 GdkRectangle *expose_area);
297 static void find_changed_cb (EvDocument *document,
300 static void job_finished_cb (EvPixbufCache *pixbuf_cache,
302 static void page_changed_cb (EvPageCache *page_cache,
305 static void on_adjustment_value_changed (GtkAdjustment *adjustment,
309 static void ev_view_finalize (GObject *object);
310 static void ev_view_destroy (GtkObject *object);
311 static void ev_view_set_property (GObject *object,
315 static void ev_view_get_property (GObject *object,
319 static void ev_view_class_init (EvViewClass *class);
320 static void ev_view_init (EvView *view);
322 /*** Zoom and sizing ***/
323 static double zoom_for_size_fit_width (int doc_width,
328 static double zoom_for_size_best_fit (int doc_width,
334 static void ev_view_zoom_for_size_presentation (EvView *view,
337 static void ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
342 static void ev_view_zoom_for_size_continuous (EvView *view,
347 static void ev_view_zoom_for_size_dual_page (EvView *view,
352 static void ev_view_zoom_for_size_single_page (EvView *view,
358 static GdkCursor* ev_view_create_invisible_cursor (void);
359 static void ev_view_set_cursor (EvView *view,
360 EvViewCursor new_cursor);
362 /*** Status messages ***/
363 static void ev_view_set_status (EvView *view,
364 const char *message);
365 static void update_find_status_message (EvView *view);
366 static void ev_view_set_find_status (EvView *view,
367 const char *message);
369 static void jump_to_find_result (EvView *view);
370 static void jump_to_find_page (EvView *view,
371 EvViewFindDirection direction);
374 static void compute_selections (EvView *view,
377 static void clear_selection (EvView *view);
378 static void selection_free (EvViewSelection *selection);
379 static char* get_selected_text (EvView *ev_view);
380 static void ev_view_primary_get_cb (GtkClipboard *clipboard,
381 GtkSelectionData *selection_data,
384 static void ev_view_primary_clear_cb (GtkClipboard *clipboard,
386 static void ev_view_update_primary_selection (EvView *ev_view);
389 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
392 scroll_to_current_page (EvView *view, GtkOrientation orientation)
394 GdkRectangle page_area;
397 if (view->document == NULL) {
401 get_page_extents (view, view->current_page, &page_area, &border);
403 if (orientation == GTK_ORIENTATION_VERTICAL) {
404 if (view->continuous) {
405 gtk_adjustment_clamp_page (view->vadjustment,
406 page_area.y - view->spacing,
407 page_area.y + view->vadjustment->page_size);
409 gtk_adjustment_set_value (view->vadjustment,
410 view->vadjustment->lower);
413 if (view->dual_page) {
414 gtk_adjustment_clamp_page (view->hadjustment,
416 page_area.x + view->hadjustment->page_size);
418 gtk_adjustment_set_value (view->hadjustment,
419 CLAMP (view->hadjustment->value,
420 view->hadjustment->lower,
421 view->hadjustment->upper -
422 view->hadjustment->page_size));
428 view_set_adjustment_values (EvView *view,
429 GtkOrientation orientation)
431 GtkWidget *widget = GTK_WIDGET (view);
432 GtkAdjustment *adjustment;
439 if (orientation == GTK_ORIENTATION_HORIZONTAL) {
440 requisition = widget->requisition.width;
441 allocation = widget->allocation.width;
442 adjustment = view->hadjustment;
444 requisition = widget->requisition.height;
445 allocation = widget->allocation.height;
446 adjustment = view->vadjustment;
453 switch (view->pending_scroll) {
454 case SCROLL_TO_KEEP_POSITION:
455 factor = (adjustment->value) / adjustment->upper;
457 case SCROLL_TO_CURRENT_PAGE:
459 case SCROLL_TO_CENTER:
460 factor = (adjustment->value + adjustment->page_size * 0.5) / adjustment->upper;
464 adjustment->page_size = allocation;
465 adjustment->step_increment = allocation * 0.1;
466 adjustment->page_increment = allocation * 0.9;
467 adjustment->lower = 0;
468 adjustment->upper = MAX (allocation, requisition);
471 * We add 0.5 to the values before to average out our rounding errors.
473 switch (view->pending_scroll) {
474 case SCROLL_TO_KEEP_POSITION:
475 new_value = CLAMP (adjustment->upper * factor + 0.5, 0, adjustment->upper - adjustment->page_size);
476 gtk_adjustment_set_value (adjustment, (int)new_value);
478 case SCROLL_TO_CURRENT_PAGE:
479 scroll_to_current_page (view, orientation);
481 case SCROLL_TO_CENTER:
482 new_value = CLAMP (adjustment->upper * factor - adjustment->page_size * 0.5 + 0.5,
483 0, adjustment->upper - adjustment->page_size);
484 gtk_adjustment_set_value (adjustment, (int)new_value);
488 gtk_adjustment_changed (adjustment);
492 view_update_range_and_current_page (EvView *view)
494 if (view->pending_scroll != SCROLL_TO_KEEP_POSITION)
497 /* Presentation trumps all other modes */
498 if (view->presentation) {
499 view->start_page = view->current_page;
500 view->end_page = view->current_page;
501 } else if (view->continuous) {
502 GdkRectangle current_area, unused, page_area;
505 gboolean found = FALSE;
508 if (!(view->vadjustment && view->hadjustment))
511 current_area.x = view->hadjustment->value;
512 current_area.width = view->hadjustment->upper;
513 current_area.y = view->vadjustment->value;
514 current_area.height = view->vadjustment->page_size;
516 for (i = 0; i < ev_page_cache_get_n_pages (view->page_cache); i++) {
518 get_page_extents (view, i, &page_area, &border);
520 if (gdk_rectangle_intersect (¤t_area, &page_area, &unused)) {
522 view->start_page = i;
532 current_page = ev_page_cache_get_current_page (view->page_cache);
534 if (current_page < view->start_page || current_page > view->end_page) {
535 view->current_page = view->start_page;
536 ev_page_cache_set_current_page (view->page_cache, view->start_page);
539 if (view->dual_page) {
540 if (view->current_page % 2 == 0) {
541 view->start_page = view->current_page;
542 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache))
543 view->end_page = view->start_page + 1;
545 view->start_page = view->current_page - 1;
546 view->end_page = view->current_page;
549 view->start_page = view->current_page;
550 view->end_page = view->current_page;
554 ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
559 view->selection_info.selections);
563 set_scroll_adjustment (EvView *view,
564 GtkOrientation orientation,
565 GtkAdjustment *adjustment)
567 GtkAdjustment **to_set;
569 if (orientation == GTK_ORIENTATION_HORIZONTAL)
570 to_set = &view->hadjustment;
572 to_set = &view->vadjustment;
574 if (*to_set != adjustment) {
576 g_signal_handlers_disconnect_by_func (*to_set,
577 (gpointer) on_adjustment_value_changed,
579 g_object_unref (*to_set);
582 *to_set = adjustment;
583 view_set_adjustment_values (view, orientation);
586 g_object_ref (*to_set);
587 g_signal_connect (*to_set, "value_changed",
588 G_CALLBACK (on_adjustment_value_changed), view);
594 ev_view_set_scroll_adjustments (EvView *view,
595 GtkAdjustment *hadjustment,
596 GtkAdjustment *vadjustment)
598 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
599 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
601 on_adjustment_value_changed (NULL, view);
605 add_scroll_binding_keypad (GtkBindingSet *binding_set,
607 GtkScrollType scroll,
610 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
612 gtk_binding_entry_add_signal (binding_set, keyval, 0,
613 "binding_activated", 2,
614 GTK_TYPE_SCROLL_TYPE, scroll,
615 G_TYPE_BOOLEAN, horizontal);
616 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
617 "binding_activated", 2,
618 GTK_TYPE_SCROLL_TYPE, scroll,
619 G_TYPE_BOOLEAN, horizontal);
623 ev_view_scroll (EvView *view,
626 GtkAdjustment *adjustment;
627 double value, increment;
628 gboolean first_page = FALSE;
629 gboolean last_page = FALSE;
631 /* Assign values for increment and vertical adjustment */
632 adjustment = view->vadjustment;
633 increment = adjustment->page_size * 0.75;
634 value = adjustment->value;
636 /* Assign boolean for first and last page */
637 if (view->current_page == 0)
639 if (view->current_page == ev_page_cache_get_n_pages (view->page_cache) - 1)
643 case EV_SCROLL_PAGE_BACKWARD:
644 /* Do not jump backwards if at the first page */
645 if (value == (adjustment->lower) && first_page) {
647 /* At the top of a page, assign the upper bound limit of previous page */
648 } else if (value == (adjustment->lower)) {
649 value = adjustment->upper - adjustment->page_size;
650 ev_page_cache_set_current_page (view->page_cache, view->current_page - 1);
651 /* Jump to the top */
653 value = MAX (value - increment, adjustment->lower);
656 case EV_SCROLL_PAGE_FORWARD:
657 /* Do not jump forward if at the last page */
658 if (value == (adjustment->upper - adjustment->page_size) && last_page) {
660 /* At the bottom of a page, assign the lower bound limit of next page */
661 } else if (value == (adjustment->upper - adjustment->page_size)) {
663 ev_page_cache_set_current_page (view->page_cache, view->current_page + 1);
664 /* Jump to the bottom */
666 value = MIN (value + increment, adjustment->upper - adjustment->page_size);
673 gtk_adjustment_set_value (adjustment, value);
677 ev_view_binding_activated (EvView *view,
678 GtkScrollType scroll,
681 GtkAdjustment *adjustment;
684 if (view->presentation) {
686 case GTK_SCROLL_STEP_BACKWARD:
687 ev_page_cache_prev_page (view->page_cache);
689 case GTK_SCROLL_STEP_FORWARD:
690 ev_page_cache_next_page (view->page_cache);
699 adjustment = view->hadjustment;
701 adjustment = view->vadjustment;
704 value = adjustment->value;
707 case GTK_SCROLL_STEP_BACKWARD:
708 value -= adjustment->step_increment;
710 case GTK_SCROLL_STEP_FORWARD:
711 value += adjustment->step_increment;
717 value = CLAMP (value, adjustment->lower,
718 adjustment->upper - adjustment->page_size);
720 gtk_adjustment_set_value (adjustment, value);
726 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
728 GtkWidget *widget = GTK_WIDGET (view);
729 GtkAdjustment *adjustment;
732 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
734 adjustment = view->vadjustment;
736 if (rect->y < adjustment->value) {
737 value = MAX (adjustment->lower, rect->y - MARGIN);
738 gtk_adjustment_set_value (view->vadjustment, value);
739 } else if (rect->y + rect->height >
740 adjustment->value + widget->allocation.height) {
741 value = MIN (adjustment->upper, rect->y + rect->height -
742 widget->allocation.height + MARGIN);
743 gtk_adjustment_set_value (view->vadjustment, value);
746 adjustment = view->hadjustment;
748 if (rect->x < adjustment->value) {
749 value = MAX (adjustment->lower, rect->x - MARGIN);
750 gtk_adjustment_set_value (view->hadjustment, value);
751 } else if (rect->x + rect->height >
752 adjustment->value + widget->allocation.width) {
753 value = MIN (adjustment->upper, rect->x + rect->width -
754 widget->allocation.width + MARGIN);
755 gtk_adjustment_set_value (view->hadjustment, value);
759 /*** Geometry computations ***/
762 compute_border (EvView *view, int width, int height, GtkBorder *border)
764 if (view->presentation) {
770 ev_document_misc_get_page_border_size (width, height, border);
775 get_page_y_offset (EvView *view, int page, double zoom, int *y_offset)
777 int max_width, offset;
780 g_return_if_fail (y_offset != NULL);
782 ev_page_cache_get_max_width (view->page_cache, view->rotation, zoom, &max_width);
784 compute_border (view, max_width, max_width, &border);
786 if (view->dual_page) {
787 ev_page_cache_get_height_to_page (view->page_cache, page,
788 view->rotation, zoom, NULL, &offset);
789 offset += (page / 2 + 1) * view->spacing + (page / 2) * (border.top + border.bottom);
791 ev_page_cache_get_height_to_page (view->page_cache, page,
792 view->rotation, zoom, &offset, NULL);
793 offset += (page + 1) * view->spacing + page * (border.top + border.bottom);
801 get_page_extents (EvView *view,
803 GdkRectangle *page_area,
809 widget = GTK_WIDGET (view);
811 /* Get the size of the page */
812 ev_page_cache_get_size (view->page_cache, page,
816 compute_border (view, width, height, border);
817 page_area->width = width + border->left + border->right;
818 page_area->height = height + border->top + border->bottom;
820 if (view->presentation) {
821 page_area->x = (MAX (0, widget->allocation.width - width))/2;
822 page_area->y = (MAX (0, widget->allocation.height - height))/2;
823 } else if (view->continuous) {
827 ev_page_cache_get_max_width (view->page_cache, view->rotation,
828 view->scale, &max_width);
829 max_width = max_width + border->left + border->right;
830 /* Get the location of the bounding box */
831 if (view->dual_page) {
832 x = view->spacing + (page % 2) * (max_width + view->spacing);
833 x = x + MAX (0, widget->allocation.width - (max_width * 2 + view->spacing * 3)) / 2;
835 x = x + (max_width - width - border->left - border->right);
838 x = x + MAX (0, widget->allocation.width - (width + view->spacing * 2)) / 2;
841 get_page_y_offset (view, page, view->scale, &y);
847 if (view->dual_page) {
848 gint width_2, height_2;
849 gint max_width = width;
850 gint max_height = height;
851 GtkBorder overall_border;
854 other_page = page ^ 1;
856 /* First, we get the bounding box of the two pages */
857 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
858 ev_page_cache_get_size (view->page_cache,
862 &width_2, &height_2);
865 if (height_2 > height)
866 max_height = height_2;
868 compute_border (view, max_width, max_height, &overall_border);
870 /* Find the offsets */
874 /* Adjust for being the left or right page */
876 x = x + max_width - width;
878 x = x + (max_width + overall_border.left + overall_border.right) + view->spacing;
880 y = y + (max_height - height)/2;
882 /* Adjust for extra allocation */
883 x = x + MAX (0, widget->allocation.width -
884 ((max_width + overall_border.left + overall_border.right) * 2 + view->spacing * 3))/2;
885 y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
890 /* Adjust for extra allocation */
891 x = x + MAX (0, widget->allocation.width - (width + border->left + border->right + view->spacing * 2))/2;
892 y = y + MAX (0, widget->allocation.height - (height + border->top + border->bottom + view->spacing * 2))/2;
903 view_point_to_doc_point (EvView *view,
904 GdkPoint *view_point,
905 GdkRectangle *page_area,
909 *doc_point_x = (double) (view_point->x - page_area->x) / view->scale;
910 *doc_point_y = (double) (view_point->y - page_area->y) / view->scale;
914 view_rect_to_doc_rect (EvView *view,
915 GdkRectangle *view_rect,
916 GdkRectangle *page_area,
917 EvRectangle *doc_rect)
919 doc_rect->x1 = (double) (view_rect->x - page_area->x) / view->scale;
920 doc_rect->y1 = (double) (view_rect->y - page_area->y) / view->scale;
921 doc_rect->x2 = doc_rect->x1 + (double) view_rect->width / view->scale;
922 doc_rect->y2 = doc_rect->y1 + (double) view_rect->height / view->scale;
926 doc_rect_to_view_rect (EvView *view,
928 EvRectangle *doc_rect,
929 GdkRectangle *view_rect)
931 GdkRectangle page_area;
936 ev_page_cache_get_size (view->page_cache, page,
941 if (view->rotation == 0) {
944 w = doc_rect->x2 - doc_rect->x1;
945 h = doc_rect->y2 - doc_rect->y1;
946 } else if (view->rotation == 90) {
947 x = width - doc_rect->y2;
949 w = doc_rect->y2 - doc_rect->y1;
950 h = doc_rect->x2 - doc_rect->x1;
951 } else if (view->rotation == 180) {
952 x = width - doc_rect->x2;
953 y = height - doc_rect->y2;
954 w = doc_rect->x2 - doc_rect->x1;
955 h = doc_rect->y2 - doc_rect->y1;
956 } else if (view->rotation == 270) {
958 y = height - doc_rect->x2;
959 w = doc_rect->y2 - doc_rect->y1;
960 h = doc_rect->x2 - doc_rect->x1;
962 g_assert_not_reached ();
965 get_page_extents (view, page, &page_area, &border);
967 view_rect->x = x * view->scale + page_area.x;
968 view_rect->y = y * view->scale + page_area.y;
969 view_rect->width = w * view->scale;
970 view_rect->height = h * view->scale;
974 find_page_at_location (EvView *view,
983 if (view->document == NULL)
990 for (i = view->start_page; i <= view->end_page; i++) {
991 GdkRectangle page_area;
994 if (! get_page_extents (view, i, &page_area, &border))
997 if ((x >= page_area.x + border.left) &&
998 (x < page_area.x + page_area.width - border.right) &&
999 (y >= page_area.y + border.top) &&
1000 (y < page_area.y + page_area.height - border.bottom)) {
1002 *x_offset = x - (page_area.x + border.left);
1003 *y_offset = y - (page_area.y + border.top);
1012 location_in_text (EvView *view,
1018 gint x_offset = 0, y_offset = 0;
1020 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1025 region = ev_pixbuf_cache_get_text_mapping (view->pixbuf_cache, page);
1028 return gdk_region_point_in (region, x_offset / view->scale, y_offset / view->scale);
1035 get_link_at_location (EvView *view,
1040 gint x_offset = 0, y_offset = 0;
1041 GList *link_mapping;
1043 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1048 link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
1051 return ev_link_mapping_find (link_mapping, x_offset / view->scale, y_offset / view->scale);
1056 /* FIXME: standardize this sometime */
1058 go_to_link (EvView *view, EvLink *link)
1064 type = ev_link_get_link_type (link);
1067 case EV_LINK_TYPE_TITLE:
1069 case EV_LINK_TYPE_PAGE:
1070 page = ev_link_get_page (link);
1071 ev_page_cache_set_current_page (view->page_cache, page);
1073 case EV_LINK_TYPE_EXTERNAL_URI:
1074 uri = ev_link_get_uri (link);
1075 gnome_vfs_url_show (uri);
1081 tip_from_link (EvView *view, EvLink *link)
1087 type = ev_link_get_link_type (link);
1090 case EV_LINK_TYPE_TITLE:
1091 if (ev_link_get_title (link))
1092 msg = g_strdup (ev_link_get_title (link));
1094 case EV_LINK_TYPE_PAGE:
1095 page_label = ev_page_cache_get_page_label (view->page_cache, ev_link_get_page (link));
1096 msg = g_strdup_printf (_("Go to page %s"), page_label);
1097 g_free (page_label);
1099 case EV_LINK_TYPE_EXTERNAL_URI:
1100 msg = g_strdup (ev_link_get_uri (link));
1110 /*** GtkWidget implementation ***/
1113 ev_view_size_request_continuous_dual_page (EvView *view,
1114 GtkRequisition *requisition)
1120 ev_page_cache_get_max_width (view->page_cache, view->rotation,
1121 view->scale, &max_width);
1122 compute_border (view, max_width, max_width, &border);
1124 n_pages = ev_page_cache_get_n_pages (view->page_cache) + 1;
1126 requisition->width = (max_width + border.left + border.right) * 2 + (view->spacing * 3);
1127 get_page_y_offset (view, n_pages, view->scale, &requisition->height);
1129 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1130 requisition->width = 1;
1131 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1132 requisition->width = 1;
1133 /* FIXME: This could actually be set on one page docs or docs
1134 * with a strange aspect ratio. */
1135 /* requisition->height = 1;*/
1140 ev_view_size_request_continuous (EvView *view,
1141 GtkRequisition *requisition)
1148 ev_page_cache_get_max_width (view->page_cache, view->rotation,
1149 view->scale, &max_width);
1150 n_pages = ev_page_cache_get_n_pages (view->page_cache);
1151 compute_border (view, max_width, max_width, &border);
1153 requisition->width = max_width + (view->spacing * 2) + border.left + border.right;
1154 get_page_y_offset (view, n_pages, view->scale, &requisition->height);
1156 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1157 requisition->width = 1;
1158 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1159 requisition->width = 1;
1160 /* FIXME: This could actually be set on one page docs or docs
1161 * with a strange aspect ratio. */
1162 /* requisition->height = 1;*/
1167 ev_view_size_request_dual_page (EvView *view,
1168 GtkRequisition *requisition)
1173 /* Find the largest of the two. */
1174 ev_page_cache_get_size (view->page_cache,
1179 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache)) {
1180 gint width_2, height_2;
1181 ev_page_cache_get_size (view->page_cache,
1182 view->current_page + 1,
1185 &width_2, &height_2);
1186 if (width_2 > width) {
1191 compute_border (view, width, height, &border);
1193 requisition->width = ((width + border.left + border.right) * 2) +
1194 (view->spacing * 3);
1195 requisition->height = (height + border.top + border.bottom) +
1196 (view->spacing * 2);
1198 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1199 requisition->width = 1;
1200 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1201 requisition->width = 1;
1202 requisition->height = 1;
1207 ev_view_size_request_single_page (EvView *view,
1208 GtkRequisition *requisition)
1213 ev_page_cache_get_size (view->page_cache,
1218 compute_border (view, width, height, &border);
1220 requisition->width = width + border.left + border.right + (2 * view->spacing);
1221 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1223 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1224 requisition->width = 1;
1225 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1226 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1227 requisition->width = 1;
1228 requisition->height = 1;
1233 ev_view_size_request (GtkWidget *widget,
1234 GtkRequisition *requisition)
1236 EvView *view = EV_VIEW (widget);
1238 if (view->document == NULL) {
1239 requisition->width = 1;
1240 requisition->height = 1;
1244 if (view->presentation) {
1245 requisition->width = 1;
1246 requisition->height = 1;
1250 if (view->continuous && view->dual_page)
1251 ev_view_size_request_continuous_dual_page (view, requisition);
1252 else if (view->continuous)
1253 ev_view_size_request_continuous (view, requisition);
1254 else if (view->dual_page)
1255 ev_view_size_request_dual_page (view, requisition);
1257 ev_view_size_request_single_page (view, requisition);
1261 ev_view_size_allocate (GtkWidget *widget,
1262 GtkAllocation *allocation)
1264 EvView *view = EV_VIEW (widget);
1266 if (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
1267 view->sizing_mode == EV_SIZING_BEST_FIT) {
1269 g_signal_emit (view, signals[SIGNAL_ZOOM_INVALID], 0);
1271 ev_view_size_request (widget, &widget->requisition);
1274 view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
1275 view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
1277 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
1278 view->pending_resize = FALSE;
1281 view_update_range_and_current_page (view);
1283 GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
1287 ev_view_realize (GtkWidget *widget)
1289 EvView *view = EV_VIEW (widget);
1290 GdkWindowAttr attributes;
1292 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
1295 attributes.window_type = GDK_WINDOW_CHILD;
1296 attributes.wclass = GDK_INPUT_OUTPUT;
1297 attributes.visual = gtk_widget_get_visual (widget);
1298 attributes.colormap = gtk_widget_get_colormap (widget);
1300 attributes.x = widget->allocation.x;
1301 attributes.y = widget->allocation.y;
1302 attributes.width = widget->allocation.width;
1303 attributes.height = widget->allocation.height;
1304 attributes.event_mask = GDK_EXPOSURE_MASK |
1305 GDK_BUTTON_PRESS_MASK |
1306 GDK_BUTTON_RELEASE_MASK |
1308 GDK_KEY_PRESS_MASK |
1309 GDK_POINTER_MOTION_MASK |
1310 GDK_LEAVE_NOTIFY_MASK;
1312 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1314 GDK_WA_X | GDK_WA_Y |
1317 gdk_window_set_user_data (widget->window, widget);
1318 widget->style = gtk_style_attach (widget->style, widget->window);
1320 if (view->presentation)
1321 gdk_window_set_background (widget->window, &widget->style->black);
1323 gdk_window_set_background (widget->window, &widget->style->mid [GTK_STATE_NORMAL]);
1327 ev_view_unrealize (GtkWidget *widget)
1329 GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
1333 ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event)
1335 EvView *view = EV_VIEW (widget);
1337 if ((event->state & GDK_CONTROL_MASK) != 0) {
1339 ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1341 if (event->direction == GDK_SCROLL_UP ||
1342 event->direction == GDK_SCROLL_LEFT) {
1343 if (ev_view_can_zoom_in (view)) {
1344 ev_view_zoom_in (view);
1347 if (ev_view_can_zoom_out (view)) {
1348 ev_view_zoom_out (view);
1354 if ((event->state & GDK_SHIFT_MASK) != 0) {
1355 if (event->direction == GDK_SCROLL_UP)
1356 event->direction = GDK_SCROLL_LEFT;
1357 if (event->direction == GDK_SCROLL_DOWN)
1358 event->direction = GDK_SCROLL_RIGHT;
1364 static EvViewSelection *
1365 find_selection_for_page (EvView *view,
1370 for (list = view->selection_info.selections; list != NULL; list = list->next) {
1371 EvViewSelection *selection;
1373 selection = (EvViewSelection *) list->data;
1375 if (selection->page == page)
1383 ev_view_expose_event (GtkWidget *widget,
1384 GdkEventExpose *event)
1386 EvView *view = EV_VIEW (widget);
1389 if (view->document == NULL)
1392 for (i = view->start_page; i <= view->end_page; i++) {
1393 GdkRectangle page_area;
1396 if (!get_page_extents (view, i, &page_area, &border))
1399 page_area.x -= view->scroll_x;
1400 page_area.y -= view->scroll_y;
1402 draw_one_page (view, i, &page_area, &border, &(event->area));
1404 if (EV_IS_DOCUMENT_FIND (view->document))
1405 highlight_find_results (view, i);
1412 ev_view_button_press_event (GtkWidget *widget,
1413 GdkEventButton *event)
1415 EvView *view = EV_VIEW (widget);
1417 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
1418 gtk_widget_grab_focus (widget);
1421 view->pressed_button = event->button;
1423 switch (event->button) {
1425 if (view->selection_info.selections) {
1426 clear_selection (view);
1427 gtk_widget_queue_draw (widget);
1430 view->selection_info.start.x = event->x + view->scroll_x;
1431 view->selection_info.start.y = event->y + view->scroll_y;
1434 /* use root coordinates as reference point because
1435 * scrolling changes window relative coordinates */
1436 view->drag_info.start.x = event->x_root;
1437 view->drag_info.start.y = event->y_root;
1438 view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment);
1439 view->drag_info.vadj = gtk_adjustment_get_value (view->vadjustment);
1441 ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
1451 selection_update_idle_cb (EvView *view)
1454 point.x = view->motion_x;
1455 point.y = view->motion_y;
1456 compute_selections (view, &view->selection_info.start, &point);
1458 view->selection_update_id = 0;
1463 ev_view_motion_notify_event (GtkWidget *widget,
1464 GdkEventMotion *event)
1466 EvView *view = EV_VIEW (widget);
1468 if (!view->document)
1471 /* For the Evince 0.4.x release, we limit selection to un-rotated
1474 if (view->pressed_button == 1 &&
1475 view->rotation == 0) {
1476 view->selection_info.in_selection = TRUE;
1477 view->motion_x = event->x + view->scroll_x;
1478 view->motion_y = event->y + view->scroll_y;
1480 /* Queue an idle to handle the motion. We do this because
1481 * handling any selection events in the motion could be slower
1482 * than new motion events reach us. We always put it in the
1483 * idle to make sure we catch up and don't visibly lag the
1485 if (! view->selection_update_id)
1486 view->selection_update_id = g_idle_add ((GSourceFunc)selection_update_idle_cb, view);
1489 } else if (view->pressed_button == 2) {
1490 if (!view->drag_info.in_drag) {
1493 start = gtk_drag_check_threshold (widget,
1494 view->drag_info.start.x,
1495 view->drag_info.start.y,
1498 view->drag_info.in_drag = start;
1501 if (view->drag_info.in_drag) {
1503 gdouble dhadj_value, dvadj_value;
1505 dx = event->x_root - view->drag_info.start.x;
1506 dy = event->y_root - view->drag_info.start.y;
1508 dhadj_value = view->hadjustment->page_size *
1509 (gdouble)dx / widget->allocation.width;
1510 dvadj_value = view->vadjustment->page_size *
1511 (gdouble)dy / widget->allocation.height;
1513 /* clamp scrolling to visible area */
1514 gtk_adjustment_set_value (view->hadjustment,
1515 MIN(view->drag_info.hadj - dhadj_value,
1516 view->hadjustment->upper -
1517 view->hadjustment->page_size));
1518 gtk_adjustment_set_value (view->vadjustment,
1519 MIN(view->drag_info.vadj - dvadj_value,
1520 view->vadjustment->upper -
1521 view->vadjustment->page_size));
1525 /* For the Evince 0.4.x release, we limit links to un-rotated documents
1528 } else if (view->pressed_button <= 0 &&
1529 view->rotation == 0) {
1532 link = get_link_at_location (view, event->x + view->scroll_x, event->y + view->scroll_y);
1534 if (!link && view->link_tooltip) {
1535 ev_tooltip_deactivate (EV_TOOLTIP (view->link_tooltip));
1539 char *msg = tip_from_link (view, link);
1541 if (view->link_tooltip == NULL) {
1542 view->link_tooltip = ev_tooltip_new (GTK_WIDGET (view));
1544 ev_tooltip_set_position (EV_TOOLTIP (view->link_tooltip), event->x, event->y);
1545 ev_tooltip_set_text (EV_TOOLTIP (view->link_tooltip), msg);
1546 ev_tooltip_activate (EV_TOOLTIP (view->link_tooltip));
1549 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
1550 } else if (location_in_text (view, event->x + view->scroll_x, event->y + view->scroll_y)) {
1551 ev_view_set_cursor (view, EV_VIEW_CURSOR_IBEAM);
1553 ev_view_set_status (view, NULL);
1554 if (view->cursor == EV_VIEW_CURSOR_LINK ||
1555 view->cursor == EV_VIEW_CURSOR_IBEAM)
1556 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1565 ev_view_button_release_event (GtkWidget *widget,
1566 GdkEventButton *event)
1568 EvView *view = EV_VIEW (widget);
1570 if (view->pressed_button == 2) {
1571 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1574 view->pressed_button = -1;
1575 view->drag_info.in_drag = FALSE;
1577 if (view->selection_info.selections) {
1578 ev_view_update_primary_selection (view);
1579 } else if (view->document) {
1582 link = get_link_at_location (view, event->x + view->scroll_x, event->y + view->scroll_y);
1584 go_to_link (view, link);
1592 ev_view_focus_in (GtkWidget *widget,
1593 GdkEventFocus *event)
1595 if (EV_VIEW (widget)->pixbuf_cache)
1596 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
1597 gtk_widget_queue_draw (widget);
1603 ev_view_focus_out (GtkWidget *widget,
1604 GdkEventFocus *event)
1606 if (EV_VIEW (widget)->pixbuf_cache)
1607 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
1608 gtk_widget_queue_draw (widget);
1614 ev_view_leave_notify_event (GtkWidget *widget, GdkEventCrossing *event)
1616 EvView *view = EV_VIEW (widget);
1618 ev_view_set_status (view, NULL);
1620 if (view->cursor == EV_VIEW_CURSOR_LINK ||
1621 view->cursor == EV_VIEW_CURSOR_IBEAM)
1622 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1628 ev_view_style_set (GtkWidget *widget,
1629 GtkStyle *old_style)
1631 if (EV_VIEW (widget)->pixbuf_cache)
1632 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
1634 GTK_WIDGET_CLASS (ev_view_parent_class)->style_set (widget, old_style);
1641 ev_gdk_color_to_rgb (const GdkColor *color)
1644 result = (0xff0000 | (color->red & 0xff00));
1646 result |= ((color->green & 0xff00) | (color->blue >> 8));
1651 draw_rubberband (GtkWidget *widget, GdkWindow *window,
1652 const GdkRectangle *rect, guchar alpha)
1656 GdkColor *fill_color_gdk;
1659 fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
1660 fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
1662 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
1663 rect->width, rect->height);
1664 gdk_pixbuf_fill (pixbuf, fill_color);
1666 gdk_draw_pixbuf (window, NULL, pixbuf,
1668 rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
1669 rect->width, rect->height,
1670 GDK_RGB_DITHER_NONE,
1673 g_object_unref (pixbuf);
1675 gc = gdk_gc_new (window);
1676 gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
1677 gdk_draw_rectangle (window, gc, FALSE,
1678 rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
1681 g_object_unref (gc);
1683 gdk_color_free (fill_color_gdk);
1688 highlight_find_results (EvView *view, int page)
1690 EvDocumentFind *find;
1693 g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document));
1695 find = EV_DOCUMENT_FIND (view->document);
1697 results = ev_document_find_get_n_results (find, page);
1699 for (i = 0; i < results; i++) {
1700 EvRectangle rectangle;
1701 GdkRectangle view_rectangle;
1704 if (i == view->find_result && page == view->find_page) {
1710 ev_document_find_get_result (find, page, i, &rectangle);
1711 doc_rect_to_view_rect (view, page, &rectangle, &view_rectangle);
1712 draw_rubberband (GTK_WIDGET (view), GTK_WIDGET(view)->window,
1713 &view_rectangle, alpha);
1718 draw_loading_text (EvView *view,
1719 GdkRectangle *page_area,
1720 GdkRectangle *expose_area)
1722 PangoLayout *layout;
1723 PangoFontDescription *font_desc;
1724 PangoRectangle logical_rect;
1728 const char *loading_text = _("Loading...");
1730 layout = gtk_widget_create_pango_layout (GTK_WIDGET (view), loading_text);
1732 font_desc = pango_font_description_new ();
1735 /* We set the font to be 10 points, get the size, and scale appropriately */
1736 pango_font_description_set_size (font_desc, 10 * PANGO_SCALE);
1737 pango_layout_set_font_description (layout, font_desc);
1738 pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
1740 /* Make sure we fit the middle of the page */
1741 target_width = MAX (page_area->width / 2, 1);
1742 real_scale = ((double)target_width / (double) logical_rect.width) * (PANGO_SCALE * 10);
1743 pango_font_description_set_size (font_desc, (int)real_scale);
1744 pango_layout_set_font_description (layout, font_desc);
1745 pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
1747 gtk_paint_layout (GTK_WIDGET (view)->style,
1748 GTK_WIDGET (view)->window,
1749 GTK_WIDGET_STATE (view),
1754 page_area->x + (target_width/2),
1755 page_area->y + (page_area->height - logical_rect.height) / 2,
1758 pango_font_description_free (font_desc);
1759 g_object_unref (layout);
1763 draw_one_page (EvView *view,
1765 GdkRectangle *page_area,
1767 GdkRectangle *expose_area)
1770 GdkPixbuf *current_pixbuf;
1771 GdkRectangle overlap;
1772 GdkRectangle real_page_area;
1773 EvViewSelection *selection;
1775 g_assert (view->document);
1776 if (! gdk_rectangle_intersect (page_area, expose_area, &overlap))
1779 selection = find_selection_for_page (view, page);
1780 ev_page_cache_get_size (view->page_cache,
1781 page, view->rotation,
1784 /* Render the document itself */
1785 real_page_area = *page_area;
1787 real_page_area.x += border->left;
1788 real_page_area.y += border->top;
1789 real_page_area.width -= (border->left + border->right);
1790 real_page_area.height -= (border->top + border->bottom);
1792 ev_document_misc_paint_one_page (GTK_WIDGET(view)->window,
1796 if (gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) {
1797 GdkPixbuf *selection_pixbuf = NULL;
1798 GdkPixbuf *scaled_image;
1799 GdkPixbuf *scaled_selection;
1801 current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, page);
1803 /* Get the selection pixbuf iff we have something to draw */
1804 if (current_pixbuf && view->selection_mode == EV_VIEW_SELECTION_TEXT && selection)
1805 selection_pixbuf = ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache,
1810 if (current_pixbuf == NULL)
1811 scaled_image = NULL;
1812 else if (width == gdk_pixbuf_get_width (current_pixbuf) &&
1813 height == gdk_pixbuf_get_height (current_pixbuf))
1814 scaled_image = g_object_ref (current_pixbuf);
1816 /* FIXME: We don't want to scale the whole area, just the right
1818 scaled_image = gdk_pixbuf_scale_simple (current_pixbuf,
1820 GDK_INTERP_NEAREST);
1822 if (selection_pixbuf == NULL)
1823 scaled_selection = NULL;
1824 else if (width == gdk_pixbuf_get_width (selection_pixbuf) &&
1825 height == gdk_pixbuf_get_height (selection_pixbuf))
1826 scaled_selection = g_object_ref (selection_pixbuf);
1828 /* FIXME: We don't want to scale the whole area, just the right
1830 scaled_selection = gdk_pixbuf_scale_simple (selection_pixbuf,
1832 GDK_INTERP_NEAREST);
1835 gdk_draw_pixbuf (GTK_WIDGET(view)->window,
1836 GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
1838 overlap.x - real_page_area.x,
1839 overlap.y - real_page_area.y,
1840 overlap.x, overlap.y,
1841 overlap.width, overlap.height,
1842 GDK_RGB_DITHER_NORMAL,
1844 g_object_unref (scaled_image);
1846 draw_loading_text (view,
1851 if (scaled_selection) {
1852 gdk_draw_pixbuf (GTK_WIDGET(view)->window,
1853 GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
1855 overlap.x - real_page_area.x,
1856 overlap.y - real_page_area.y,
1857 overlap.x, overlap.y,
1858 overlap.width, overlap.height,
1859 GDK_RGB_DITHER_NORMAL,
1861 g_object_unref (scaled_selection);
1866 /*** GObject functions ***/
1869 ev_view_finalize (GObject *object)
1871 EvView *view = EV_VIEW (object);
1875 g_free (view->status);
1876 g_free (view->find_status);
1878 clear_selection (view);
1880 G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
1884 ev_view_destroy (GtkObject *object)
1886 EvView *view = EV_VIEW (object);
1888 if (view->document) {
1889 g_object_unref (view->document);
1890 view->document = NULL;
1892 if (view->pixbuf_cache) {
1893 g_object_unref (view->pixbuf_cache);
1894 view->pixbuf_cache = NULL;
1896 if (view->link_tooltip) {
1897 gtk_widget_destroy (view->link_tooltip);
1898 view->link_tooltip = NULL;
1901 ev_view_set_scroll_adjustments (view, NULL, NULL);
1903 GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
1907 ev_view_set_property (GObject *object,
1909 const GValue *value,
1912 EvView *view = EV_VIEW (object);
1916 case PROP_CONTINUOUS:
1917 ev_view_set_continuous (view, g_value_get_boolean (value));
1919 case PROP_DUAL_PAGE:
1920 ev_view_set_dual_page (view, g_value_get_boolean (value));
1922 case PROP_FULLSCREEN:
1923 ev_view_set_fullscreen (view, g_value_get_boolean (value));
1925 case PROP_PRESENTATION:
1926 ev_view_set_presentation (view, g_value_get_boolean (value));
1928 case PROP_SIZING_MODE:
1929 ev_view_set_sizing_mode (view, g_value_get_enum (value));
1932 ev_view_set_zoom (view, g_value_get_double (value), FALSE);
1935 ev_view_set_rotation (view, g_value_get_int (value));
1938 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1943 ev_view_get_property (GObject *object,
1948 EvView *view = EV_VIEW (object);
1953 g_value_set_string (value, view->status);
1955 case PROP_FIND_STATUS:
1956 g_value_set_string (value, view->status);
1958 case PROP_CONTINUOUS:
1959 g_value_set_boolean (value, view->continuous);
1961 case PROP_DUAL_PAGE:
1962 g_value_set_boolean (value, view->dual_page);
1964 case PROP_FULLSCREEN:
1965 g_value_set_boolean (value, view->fullscreen);
1967 case PROP_PRESENTATION:
1968 g_value_set_boolean (value, view->presentation);
1970 case PROP_SIZING_MODE:
1971 g_value_set_enum (value, view->sizing_mode);
1974 g_value_set_double (value, view->scale);
1977 g_value_set_int (value, view->rotation);
1980 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1985 ev_view_class_init (EvViewClass *class)
1987 GObjectClass *object_class = G_OBJECT_CLASS (class);
1988 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
1989 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
1990 GtkBindingSet *binding_set;
1992 object_class->finalize = ev_view_finalize;
1993 object_class->set_property = ev_view_set_property;
1994 object_class->get_property = ev_view_get_property;
1996 widget_class->expose_event = ev_view_expose_event;
1997 widget_class->button_press_event = ev_view_button_press_event;
1998 widget_class->motion_notify_event = ev_view_motion_notify_event;
1999 widget_class->button_release_event = ev_view_button_release_event;
2000 widget_class->focus_in_event = ev_view_focus_in;
2001 widget_class->focus_out_event = ev_view_focus_out;
2002 widget_class->size_request = ev_view_size_request;
2003 widget_class->size_allocate = ev_view_size_allocate;
2004 widget_class->realize = ev_view_realize;
2005 widget_class->unrealize = ev_view_unrealize;
2006 widget_class->scroll_event = ev_view_scroll_event;
2007 widget_class->leave_notify_event = ev_view_leave_notify_event;
2008 widget_class->style_set = ev_view_style_set;
2009 gtk_object_class->destroy = ev_view_destroy;
2011 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
2012 class->binding_activated = ev_view_binding_activated;
2014 widget_class->set_scroll_adjustments_signal =
2015 g_signal_new ("set-scroll-adjustments",
2016 G_OBJECT_CLASS_TYPE (object_class),
2017 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
2018 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
2020 ev_marshal_VOID__OBJECT_OBJECT,
2022 GTK_TYPE_ADJUSTMENT,
2023 GTK_TYPE_ADJUSTMENT);
2025 signals[SIGNAL_BINDING_ACTIVATED] = g_signal_new ("binding_activated",
2026 G_TYPE_FROM_CLASS (object_class),
2027 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
2028 G_STRUCT_OFFSET (EvViewClass, binding_activated),
2030 ev_marshal_VOID__ENUM_BOOLEAN,
2032 GTK_TYPE_SCROLL_TYPE,
2035 signals[SIGNAL_ZOOM_INVALID] = g_signal_new ("zoom-invalid",
2036 G_TYPE_FROM_CLASS (object_class),
2037 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
2038 G_STRUCT_OFFSET (EvViewClass, zoom_invalid),
2040 ev_marshal_VOID__VOID,
2041 G_TYPE_NONE, 0, G_TYPE_NONE);
2043 g_object_class_install_property (object_class,
2045 g_param_spec_string ("status",
2047 "The status message",
2051 g_object_class_install_property (object_class,
2053 g_param_spec_string ("find-status",
2054 "Find Status Message",
2055 "The find status message",
2059 g_object_class_install_property (object_class,
2061 g_param_spec_boolean ("continuous",
2063 "Continuous scrolling mode",
2065 G_PARAM_READWRITE));
2067 g_object_class_install_property (object_class,
2069 g_param_spec_boolean ("dual-page",
2071 "Two pages visible at once",
2073 G_PARAM_READWRITE));
2074 g_object_class_install_property (object_class,
2076 g_param_spec_boolean ("fullscreen",
2078 "Draw page in a fullscreen fashion",
2080 G_PARAM_READWRITE));
2081 g_object_class_install_property (object_class,
2083 g_param_spec_boolean ("presentation",
2085 "Draw page in presentation mode",
2087 G_PARAM_READWRITE));
2089 g_object_class_install_property (object_class,
2091 g_param_spec_enum ("sizing-mode",
2094 EV_TYPE_SIZING_MODE,
2095 EV_SIZING_FIT_WIDTH,
2096 G_PARAM_READWRITE));
2098 g_object_class_install_property (object_class,
2100 g_param_spec_double ("zoom",
2106 G_PARAM_READWRITE));
2107 g_object_class_install_property (object_class,
2109 g_param_spec_double ("rotation",
2115 G_PARAM_READWRITE));
2117 binding_set = gtk_binding_set_by_class (class);
2119 add_scroll_binding_keypad (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
2120 add_scroll_binding_keypad (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
2121 add_scroll_binding_keypad (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
2122 add_scroll_binding_keypad (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
2126 ev_view_init (EvView *view)
2128 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
2132 view->current_page = 0;
2133 view->pressed_button = -1;
2134 view->cursor = EV_VIEW_CURSOR_NORMAL;
2135 view->drag_info.in_drag = FALSE;
2136 view->selection_info.in_selection = FALSE;
2138 view->selection_mode = EV_VIEW_SELECTION_TEXT;
2139 view->continuous = TRUE;
2140 view->dual_page = FALSE;
2141 view->presentation = FALSE;
2142 view->fullscreen = FALSE;
2143 view->sizing_mode = EV_SIZING_FIT_WIDTH;
2144 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
2150 find_changed_cb (EvDocument *document, int page, EvView *view)
2152 jump_to_find_page (view, EV_VIEW_FIND_NEXT);
2153 jump_to_find_result (view);
2154 update_find_status_message (view);
2156 if (view->current_page == page)
2157 gtk_widget_queue_draw (GTK_WIDGET (view));
2161 job_finished_cb (EvPixbufCache *pixbuf_cache,
2164 gtk_widget_queue_draw (GTK_WIDGET (view));
2168 page_changed_cb (EvPageCache *page_cache,
2172 if (view->current_page != new_page) {
2174 view->current_page = new_page;
2175 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2176 gtk_widget_queue_resize (GTK_WIDGET (view));
2178 if (EV_IS_DOCUMENT_FIND (view->document)) {
2179 view->find_page = new_page;
2180 view->find_result = 0;
2181 update_find_status_message (view);
2186 static void on_adjustment_value_changed (GtkAdjustment *adjustment,
2191 if (! GTK_WIDGET_REALIZED (view))
2194 if (view->hadjustment) {
2195 dx = view->scroll_x - (int) view->hadjustment->value;
2196 view->scroll_x = (int) view->hadjustment->value;
2201 if (view->vadjustment) {
2202 dy = view->scroll_y - (int) view->vadjustment->value;
2203 view->scroll_y = (int) view->vadjustment->value;
2209 if (view->pending_resize)
2210 gtk_widget_queue_draw (GTK_WIDGET (view));
2212 gdk_window_scroll (GTK_WIDGET (view)->window, dx, dy);
2216 view_update_range_and_current_page (view);
2224 view = g_object_new (EV_TYPE_VIEW, NULL);
2230 setup_caches (EvView *view)
2232 view->page_cache = ev_page_cache_get (view->document);
2233 g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
2234 view->pixbuf_cache = ev_pixbuf_cache_new (GTK_WIDGET (view), view->document);
2235 g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
2239 clear_caches (EvView *view)
2241 if (view->pixbuf_cache) {
2242 g_object_unref (view->pixbuf_cache);
2243 view->pixbuf_cache = NULL;
2246 if (view->page_cache) {
2247 view->page_cache = NULL;
2252 ev_view_set_document (EvView *view,
2253 EvDocument *document)
2255 g_return_if_fail (EV_IS_VIEW (view));
2257 if (document != view->document) {
2258 clear_caches (view);
2260 if (view->document) {
2261 g_signal_handlers_disconnect_by_func (view->document,
2264 g_object_unref (view->document);
2265 view->page_cache = NULL;
2269 view->document = document;
2270 view->find_page = 0;
2271 view->find_result = 0;
2273 if (view->document) {
2274 g_object_ref (view->document);
2275 if (EV_IS_DOCUMENT_FIND (view->document)) {
2276 g_signal_connect (view->document,
2278 G_CALLBACK (find_changed_cb),
2282 setup_caches (view);
2285 gtk_widget_queue_resize (GTK_WIDGET (view));
2289 /*** Zoom and sizing mode ***/
2291 #define EPSILON 0.0000001
2293 ev_view_set_zoom (EvView *view,
2300 scale = view->scale * factor;
2304 scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
2306 if (ABS (view->scale - scale) < EPSILON)
2309 view->scale = scale;
2310 view->pending_resize = TRUE;
2312 gtk_widget_queue_resize (GTK_WIDGET (view));
2314 g_object_notify (G_OBJECT (view), "zoom");
2318 ev_view_get_zoom (EvView *view)
2324 ev_view_get_continuous (EvView *view)
2326 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2328 return view->continuous;
2332 ev_view_set_continuous (EvView *view,
2333 gboolean continuous)
2335 g_return_if_fail (EV_IS_VIEW (view));
2337 continuous = continuous != FALSE;
2339 if (view->continuous != continuous) {
2340 view->continuous = continuous;
2341 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2342 gtk_widget_queue_resize (GTK_WIDGET (view));
2345 g_object_notify (G_OBJECT (view), "continuous");
2349 ev_view_get_dual_page (EvView *view)
2351 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2353 return view->dual_page;
2357 ev_view_set_dual_page (EvView *view,
2360 g_return_if_fail (EV_IS_VIEW (view));
2362 dual_page = dual_page != FALSE;
2364 if (view->dual_page == dual_page)
2367 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2368 view->dual_page = dual_page;
2369 /* FIXME: if we're keeping the pixbuf cache around, we should extend the
2370 * preload_cache_size to be 2 if dual_page is set.
2372 gtk_widget_queue_resize (GTK_WIDGET (view));
2374 g_object_notify (G_OBJECT (view), "dual-page");
2378 ev_view_set_fullscreen (EvView *view,
2379 gboolean fullscreen)
2381 g_return_if_fail (EV_IS_VIEW (view));
2383 fullscreen = fullscreen != FALSE;
2385 if (view->fullscreen == fullscreen)
2388 view->fullscreen = fullscreen;
2389 gtk_widget_queue_resize (GTK_WIDGET (view));
2391 g_object_notify (G_OBJECT (view), "fullscreen");
2395 ev_view_get_fullscreen (EvView *view)
2397 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2399 return view->fullscreen;
2403 ev_view_set_presentation (EvView *view,
2404 gboolean presentation)
2406 g_return_if_fail (EV_IS_VIEW (view));
2408 presentation = presentation != FALSE;
2410 if (view->presentation == presentation)
2413 view->presentation = presentation;
2414 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2415 gtk_widget_queue_resize (GTK_WIDGET (view));
2417 if (GTK_WIDGET_REALIZED (view)) {
2418 if (view->presentation)
2419 gdk_window_set_background (GTK_WIDGET(view)->window,
2420 >K_WIDGET (view)->style->black);
2422 gdk_window_set_background (GTK_WIDGET(view)->window,
2423 >K_WIDGET (view)->style->mid [GTK_STATE_NORMAL]);
2427 g_object_notify (G_OBJECT (view), "presentation");
2431 ev_view_get_presentation (EvView *view)
2433 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2435 return view->presentation;
2439 ev_view_set_sizing_mode (EvView *view,
2440 EvSizingMode sizing_mode)
2442 g_return_if_fail (EV_IS_VIEW (view));
2444 if (view->sizing_mode == sizing_mode)
2447 view->sizing_mode = sizing_mode;
2448 gtk_widget_queue_resize (GTK_WIDGET (view));
2450 g_object_notify (G_OBJECT (view), "sizing-mode");
2454 ev_view_get_sizing_mode (EvView *view)
2456 g_return_val_if_fail (EV_IS_VIEW (view), EV_SIZING_FREE);
2458 return view->sizing_mode;
2462 ev_view_can_zoom_in (EvView *view)
2464 return view->scale * ZOOM_IN_FACTOR <= MAX_SCALE;
2468 ev_view_can_zoom_out (EvView *view)
2470 return view->scale * ZOOM_OUT_FACTOR >= MIN_SCALE;
2474 ev_view_zoom_in (EvView *view)
2476 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2478 view->pending_scroll = SCROLL_TO_CENTER;
2479 ev_view_set_zoom (view, ZOOM_IN_FACTOR, TRUE);
2483 ev_view_zoom_out (EvView *view)
2485 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2487 view->pending_scroll = SCROLL_TO_CENTER;
2488 ev_view_set_zoom (view, ZOOM_OUT_FACTOR, TRUE);
2492 ev_view_rotate_right (EvView *view)
2494 int rotation = view->rotation + 90;
2496 if (rotation >= 360) {
2500 ev_view_set_rotation (view, rotation);
2504 ev_view_rotate_left (EvView *view)
2506 int rotation = view->rotation - 90;
2512 ev_view_set_rotation (view, rotation);
2516 ev_view_set_rotation (EvView *view, int rotation)
2518 view->rotation = rotation;
2520 if (view->pixbuf_cache) {
2521 ev_pixbuf_cache_clear (view->pixbuf_cache);
2522 gtk_widget_queue_resize (GTK_WIDGET (view));
2526 clear_selection (view);
2528 g_object_notify (G_OBJECT (view), "rotation");
2532 ev_view_get_rotation (EvView *view)
2534 return view->rotation;
2538 zoom_for_size_fit_width (int doc_width,
2546 scale = (double)target_width / doc_width;
2548 if (doc_height * scale > target_height)
2549 scale = (double) (target_width - vsb_width) / doc_width;
2555 zoom_for_size_best_fit (int doc_width,
2565 w_scale = (double)target_width / doc_width;
2566 h_scale = (double)target_height / doc_height;
2568 if (doc_height * w_scale > target_height)
2569 w_scale = (double) (target_width - vsb_width) / doc_width;
2570 if (doc_width * h_scale > target_width)
2571 h_scale = (double) (target_height - hsb_width) / doc_height;
2573 return MIN (w_scale, h_scale);
2578 ev_view_zoom_for_size_presentation (EvView *view,
2582 int doc_width, doc_height;
2585 ev_page_cache_get_size (view->page_cache,
2591 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, 0, 0);
2592 ev_view_set_zoom (view, scale, FALSE);
2596 ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
2602 int doc_width, doc_height;
2606 ev_page_cache_get_max_width (view->page_cache,
2610 ev_page_cache_get_max_height (view->page_cache,
2614 compute_border (view, doc_width, doc_height, &border);
2616 doc_width = doc_width * 2;
2617 width -= (2 * (border.left + border.right) + 3 * view->spacing);
2618 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2620 /* FIXME: We really need to calculate the overall height here, not the
2621 * page height. We assume there's always a vertical scrollbar for
2622 * now. We need to fix this. */
2623 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2624 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
2625 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2626 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
2628 g_assert_not_reached ();
2630 ev_view_set_zoom (view, scale, FALSE);
2634 ev_view_zoom_for_size_continuous (EvView *view,
2640 int doc_width, doc_height;
2644 ev_page_cache_get_max_width (view->page_cache,
2648 ev_page_cache_get_max_height (view->page_cache,
2652 compute_border (view, doc_width, doc_height, &border);
2654 width -= (border.left + border.right + 2 * view->spacing);
2655 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2657 /* FIXME: We really need to calculate the overall height here, not the
2658 * page height. We assume there's always a vertical scrollbar for
2659 * now. We need to fix this. */
2660 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2661 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
2662 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2663 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
2665 g_assert_not_reached ();
2667 ev_view_set_zoom (view, scale, FALSE);
2671 ev_view_zoom_for_size_dual_page (EvView *view,
2678 gint doc_width, doc_height;
2682 other_page = view->current_page ^ 1;
2684 /* Find the largest of the two. */
2685 ev_page_cache_get_size (view->page_cache,
2689 &doc_width, &doc_height);
2691 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
2692 gint width_2, height_2;
2693 ev_page_cache_get_size (view->page_cache,
2697 &width_2, &height_2);
2698 if (width_2 > doc_width)
2699 doc_width = width_2;
2700 if (height_2 > doc_height)
2701 doc_height = height_2;
2703 compute_border (view, doc_width, doc_height, &border);
2705 doc_width = doc_width * 2;
2706 width -= ((border.left + border.right)* 2 + 3 * view->spacing);
2707 height -= (border.top + border.bottom + 2 * view->spacing);
2709 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2710 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
2711 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2712 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
2714 g_assert_not_reached ();
2716 ev_view_set_zoom (view, scale, FALSE);
2720 ev_view_zoom_for_size_single_page (EvView *view,
2726 int doc_width, doc_height;
2730 ev_page_cache_get_size (view->page_cache,
2736 /* Get an approximate border */
2737 compute_border (view, width, height, &border);
2739 width -= (border.left + border.right + 2 * view->spacing);
2740 height -= (border.top + border.bottom + 2 * view->spacing);
2742 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2743 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
2744 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2745 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
2747 g_assert_not_reached ();
2749 ev_view_set_zoom (view, scale, FALSE);
2753 ev_view_set_zoom_for_size (EvView *view,
2759 g_return_if_fail (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
2760 view->sizing_mode == EV_SIZING_BEST_FIT);
2761 g_return_if_fail (width >= 0);
2762 g_return_if_fail (height >= 0);
2764 if (view->document == NULL)
2767 if (view->presentation)
2768 ev_view_zoom_for_size_presentation (view, width, height);
2769 else if (view->continuous && view->dual_page)
2770 ev_view_zoom_for_size_continuous_and_dual_page (view, width, height, vsb_width, hsb_height);
2771 else if (view->continuous)
2772 ev_view_zoom_for_size_continuous (view, width, height, vsb_width, hsb_height);
2773 else if (view->dual_page)
2774 ev_view_zoom_for_size_dual_page (view, width, height, vsb_width, hsb_height);
2776 ev_view_zoom_for_size_single_page (view, width, height, vsb_width, hsb_height);
2779 /*** Status text messages ***/
2782 ev_view_get_status (EvView *view)
2784 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2786 return view->status;
2790 ev_view_set_status (EvView *view, const char *message)
2792 g_return_if_fail (EV_IS_VIEW (view));
2794 if (message != view->status) {
2795 g_free (view->status);
2796 view->status = g_strdup (message);
2797 g_object_notify (G_OBJECT (view), "status");
2802 update_find_status_message (EvView *view)
2806 if (view->current_page == view->find_page) {
2809 results = ev_document_find_get_n_results
2810 (EV_DOCUMENT_FIND (view->document),
2811 view->current_page);
2812 /* TRANS: Sometimes this could be better translated as
2813 "%d hit(s) on this page". Therefore this string
2814 contains plural cases. */
2815 message = g_strdup_printf (ngettext ("%d found on this page",
2816 "%d found on this page",
2822 percent = ev_document_find_get_progress
2823 (EV_DOCUMENT_FIND (view->document));
2824 if (percent >= (1.0 - 1e-10)) {
2825 message = g_strdup (_("Not found"));
2827 message = g_strdup_printf (_("%3d%% remaining to search"),
2828 (int) ((1.0 - percent) * 100));
2832 ev_view_set_find_status (view, message);
2837 ev_view_get_find_status (EvView *view)
2839 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2841 return view->find_status;
2845 ev_view_set_find_status (EvView *view, const char *message)
2847 g_return_if_fail (EV_IS_VIEW (view));
2849 g_free (view->find_status);
2850 view->find_status = g_strdup (message);
2851 g_object_notify (G_OBJECT (view), "find-status");
2857 jump_to_find_result (EvView *view)
2859 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2861 GdkRectangle view_rect;
2863 int page = view->find_page;
2865 n_results = ev_document_find_get_n_results (find, page);
2867 if (n_results > 0 && view->find_result < n_results) {
2868 ev_document_find_get_result
2869 (find, page, view->find_result, &rect);
2871 doc_rect_to_view_rect (view, page, &rect, &view_rect);
2872 ensure_rectangle_is_visible (view, &view_rect);
2877 jump_to_find_page (EvView *view, EvViewFindDirection direction)
2881 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2883 for (i = 0; i < n_pages; i++) {
2887 if (direction == EV_VIEW_FIND_NEXT)
2888 page = view->find_page + i;
2890 page = view->find_page - i;
2893 if (page >= n_pages) {
2894 page = page - n_pages;
2897 page = page + n_pages;
2899 has_results = ev_document_find_page_has_results
2900 (EV_DOCUMENT_FIND (view->document), page);
2901 if (has_results == -1) {
2902 view->find_page = page;
2904 } else if (has_results == 1) {
2905 ev_page_cache_set_current_page (view->page_cache, page);
2912 ev_view_can_find_next (EvView *view)
2916 if (EV_IS_DOCUMENT_FIND (view->document)) {
2917 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2919 n_results = ev_document_find_get_n_results (find, view->current_page);
2922 return n_results > 0;
2926 ev_view_find_next (EvView *view)
2928 int n_results, n_pages;
2929 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2931 n_results = ev_document_find_get_n_results (find, view->current_page);
2933 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2935 view->find_result++;
2937 if (view->find_result >= n_results) {
2939 view->find_result = 0;
2941 if (view->find_page >= n_pages) {
2942 view->find_page = 0;
2945 jump_to_find_page (view, EV_VIEW_FIND_NEXT);
2946 jump_to_find_result (view);
2948 jump_to_find_result (view);
2949 gtk_widget_queue_draw (GTK_WIDGET (view));
2954 ev_view_find_previous (EvView *view)
2956 int n_results, n_pages;
2957 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2958 EvPageCache *page_cache;
2960 page_cache = ev_page_cache_get (view->document);
2962 n_results = ev_document_find_get_n_results (find, view->current_page);
2964 n_pages = ev_page_cache_get_n_pages (page_cache);
2966 view->find_result--;
2968 if (view->find_result < 0) {
2971 if (view->find_page < 0) {
2972 view->find_page = n_pages - 1;
2975 jump_to_find_page (view, EV_VIEW_FIND_PREV);
2976 view->find_result = ev_document_find_get_n_results (find, view->current_page) - 1;
2977 jump_to_find_result (view);
2979 jump_to_find_result (view);
2980 gtk_widget_queue_draw (GTK_WIDGET (view));
2984 /*** Selections ***/
2986 /* compute_new_selection_rect/text calculates the area currently selected by
2987 * view_rect. each handles a different mode;
2990 compute_new_selection_rect (EvView *view,
2994 GdkRectangle view_rect;
2998 g_assert (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE);
3000 view_rect.x = MIN (start->x, stop->x);
3001 view_rect.y = MIN (start->y, stop->y);
3002 view_rect.width = MAX (start->x, stop->x) - view_rect.x;
3003 view_rect.width = MAX (start->y, stop->y) - view_rect.y;
3005 n_pages = ev_page_cache_get_n_pages (view->page_cache);
3007 for (i = 0; i < n_pages; i++) {
3008 GdkRectangle page_area;
3011 if (get_page_extents (view, i, &page_area, &border)) {
3012 GdkRectangle overlap;
3014 if (gdk_rectangle_intersect (&page_area, &view_rect, &overlap)) {
3015 EvViewSelection *selection;
3017 selection = g_new0 (EvViewSelection, 1);
3018 selection->page = i;
3019 view_rect_to_doc_rect (view, &overlap, &page_area,
3020 &(selection->rect));
3022 list = g_list_append (list, selection);
3031 gdk_rectangle_point_in (GdkRectangle *rectangle,
3034 return rectangle->x <= point->x &&
3035 rectangle->y <= point->y &&
3036 point->x < rectangle->x + rectangle->width &&
3037 point->y < rectangle->y + rectangle->height;
3041 compute_new_selection_text (EvView *view,
3045 int n_pages, i, first, last;
3047 EvViewSelection *selection;
3049 int start_page, end_page;
3051 g_assert (view->selection_mode == EV_VIEW_SELECTION_TEXT);
3053 n_pages = ev_page_cache_get_n_pages (view->page_cache);
3055 /* First figure out the range of pages the selection
3059 if (view->continuous) {
3062 } else if (view->dual_page) {
3063 start_page = view->start_page;
3064 end_page = view->end_page + 1;
3066 start_page = view->current_page;
3067 end_page = view->current_page + 1;
3070 for (i = start_page; i < end_page; i++) {
3071 GdkRectangle page_area;
3074 get_page_extents (view, i, &page_area, &border);
3075 if (gdk_rectangle_point_in (&page_area, start) ||
3076 gdk_rectangle_point_in (&page_area, stop)) {
3077 if (first == n_pages)
3086 /* Now create a list of EvViewSelection's for the affected
3087 * pages. This could be an empty list, a list of just one
3088 * page or a number of pages.*/
3089 for (i = first; i < last + 1; i++) {
3090 GdkRectangle page_area;
3094 ev_page_cache_get_size (view->page_cache, i,
3096 1.0, &width, &height);
3098 selection = g_new0 (EvViewSelection, 1);
3099 selection->page = i;
3100 selection->rect.x1 = selection->rect.y1 = 0;
3101 selection->rect.x2 = width;
3102 selection->rect.y2 = height;
3104 get_page_extents (view, i, &page_area, &border);
3106 if (gdk_rectangle_point_in (&page_area, start))
3112 view_point_to_doc_point (view, point, &page_area,
3113 &selection->rect.x1,
3114 &selection->rect.y1);
3116 /* If the selection is contained within just one page,
3117 * make sure we don't write 'start' into both points
3118 * in selection->rect. */
3123 view_point_to_doc_point (view, point, &page_area,
3124 &selection->rect.x2,
3125 &selection->rect.y2);
3127 list = g_list_append (list, selection);
3133 /* This function takes the newly calculated list, and figures out which regions
3134 * have changed. It then queues a redraw approporiately.
3137 merge_selection_region (EvView *view,
3141 GList *new_list_ptr, *old_list_ptr;
3143 /* Update the selection */
3144 old_list = ev_pixbuf_cache_get_selection_list (view->pixbuf_cache);
3145 g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
3146 view->selection_info.selections = new_list;
3147 ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, new_list);
3149 new_list_ptr = new_list;
3150 old_list_ptr = old_list;
3152 while (new_list_ptr || old_list_ptr) {
3153 EvViewSelection *old_sel, *new_sel;
3155 GdkRegion *region = NULL;
3157 new_sel = (new_list_ptr) ? (new_list_ptr->data) : NULL;
3158 old_sel = (old_list_ptr) ? (old_list_ptr->data) : NULL;
3160 /* Assume that the lists are in order, and we run through them
3161 * comparing them, one page at a time. We come out with the
3162 * first page we see. */
3163 if (new_sel && old_sel) {
3164 if (new_sel->page < old_sel->page) {
3165 new_list_ptr = new_list_ptr->next;
3167 } else if (new_sel->page > old_sel->page) {
3168 old_list_ptr = old_list_ptr->next;
3171 new_list_ptr = new_list_ptr->next;
3172 old_list_ptr = old_list_ptr->next;
3174 } else if (new_sel) {
3175 new_list_ptr = new_list_ptr->next;
3176 } else if (old_sel) {
3177 old_list_ptr = old_list_ptr->next;
3180 g_assert (new_sel || old_sel);
3182 /* is the page we're looking at on the screen?*/
3183 cur_page = new_sel ? new_sel->page : old_sel->page;
3184 if (cur_page < view->start_page || cur_page > view->end_page)
3187 /* seed the cache with a new page. We are going to need the new
3190 GdkRegion *tmp_region = NULL;
3191 ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache,
3196 new_sel->covered_region = gdk_region_copy (tmp_region);
3200 /* Now we figure out what needs redrawing */
3201 if (old_sel && new_sel) {
3202 if (old_sel->covered_region &&
3203 new_sel->covered_region) {
3204 /* We only want to redraw the areas that have
3205 * changed, so we xor the old and new regions
3206 * and redraw if it's different */
3207 region = gdk_region_copy (old_sel->covered_region);
3208 gdk_region_xor (region, new_sel->covered_region);
3209 if (gdk_region_empty (region)) {
3210 gdk_region_destroy (region);
3213 } else if (old_sel->covered_region) {
3214 region = gdk_region_copy (old_sel->covered_region);
3215 } else if (new_sel->covered_region) {
3216 region = gdk_region_copy (new_sel->covered_region);
3218 } else if (old_sel && !new_sel) {
3219 if (old_sel->covered_region && !gdk_region_empty (old_sel->covered_region)) {
3220 region = gdk_region_copy (old_sel->covered_region);
3222 } else if (!old_sel && new_sel) {
3223 if (new_sel->covered_region && !gdk_region_empty (new_sel->covered_region)) {
3224 region = gdk_region_copy (new_sel->covered_region);
3227 g_assert_not_reached ();
3230 /* Redraw the damaged region! */
3232 GdkRectangle page_area;
3235 get_page_extents (view, cur_page, &page_area, &border);
3236 gdk_region_offset (region,
3237 page_area.x + border.left - view->scroll_x,
3238 page_area.y + border.top - view->scroll_y);
3239 gdk_window_invalidate_region (GTK_WIDGET (view)->window, region, TRUE);
3240 gdk_region_destroy (region);
3244 /* Free the old list, now that we're done with it. */
3245 g_list_foreach (old_list, (GFunc) selection_free, NULL);
3249 compute_selections (EvView *view,
3255 if (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE)
3256 list = compute_new_selection_rect (view, start, stop);
3258 list = compute_new_selection_text (view, start, stop);
3259 merge_selection_region (view, list);
3262 /* Free's the selection. It's up to the caller to queue redraws if needed.
3265 selection_free (EvViewSelection *selection)
3267 if (selection->covered_region)
3268 gdk_region_destroy (selection->covered_region);
3273 clear_selection (EvView *view)
3275 g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
3276 view->selection_info.selections = NULL;
3277 view->selection_info.in_selection = FALSE;
3282 ev_view_select_all (EvView *view)
3286 /* Disable selection on rotated pages for the 0.4.0 series */
3287 if (view->rotation != 0)
3290 clear_selection (view);
3292 n_pages = ev_page_cache_get_n_pages (view->page_cache);
3293 for (i = 0; i < n_pages; i++) {
3295 EvViewSelection *selection;
3297 ev_page_cache_get_size (view->page_cache,
3300 1.0, &width, &height);
3302 selection = g_new0 (EvViewSelection, 1);
3303 selection->page = i;
3304 selection->rect.x1 = selection->rect.y1 = 0;
3305 selection->rect.x2 = width;
3306 selection->rect.y2 = height;
3308 view->selection_info.selections = g_list_append (view->selection_info.selections, selection);
3311 ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, view->selection_info.selections);
3312 gtk_widget_queue_draw (GTK_WIDGET (view));
3316 get_selected_text (EvView *ev_view)
3321 text = g_string_new (NULL);
3323 ev_document_doc_mutex_lock ();
3325 for (l = ev_view->selection_info.selections; l != NULL; l = l->next) {
3326 EvViewSelection *selection = (EvViewSelection *)l->data;
3329 tmp = ev_document_get_text (ev_view->document,
3332 g_string_append (text, tmp);
3336 ev_document_doc_mutex_unlock ();
3338 return g_string_free (text, FALSE);
3342 ev_view_copy (EvView *ev_view)
3344 GtkClipboard *clipboard;
3347 if (!ev_document_can_get_text (ev_view->document)) {
3351 text = get_selected_text (ev_view);
3352 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
3353 GDK_SELECTION_CLIPBOARD);
3354 gtk_clipboard_set_text (clipboard, text, -1);
3359 ev_view_primary_get_cb (GtkClipboard *clipboard,
3360 GtkSelectionData *selection_data,
3364 EvView *ev_view = EV_VIEW (data);
3367 if (!ev_document_can_get_text (ev_view->document)) {
3371 text = get_selected_text (ev_view);
3372 gtk_selection_data_set_text (selection_data, text, -1);
3377 ev_view_primary_clear_cb (GtkClipboard *clipboard,
3380 EvView *view = EV_VIEW (data);
3382 clear_selection (view);
3386 ev_view_update_primary_selection (EvView *ev_view)
3388 GtkClipboard *clipboard;
3390 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
3391 GDK_SELECTION_PRIMARY);
3393 if (ev_view->selection_info.selections) {
3394 if (!gtk_clipboard_set_with_owner (clipboard,
3396 G_N_ELEMENTS (targets),
3397 ev_view_primary_get_cb,
3398 ev_view_primary_clear_cb,
3399 G_OBJECT (ev_view)))
3400 ev_view_primary_clear_cb (clipboard, ev_view);
3402 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
3403 gtk_clipboard_clear (clipboard);
3407 /*** Cursor operations ***/
3410 ev_view_create_invisible_cursor(void)
3413 GdkColor black = { 0, 0, 0, 0 };
3414 static char bits[] = { 0x00 };
3416 empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
3418 return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
3422 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
3424 GdkCursor *cursor = NULL;
3425 GdkDisplay *display;
3428 if (view->cursor == new_cursor) {
3432 widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
3433 display = gtk_widget_get_display (widget);
3434 view->cursor = new_cursor;
3436 switch (new_cursor) {
3437 case EV_VIEW_CURSOR_NORMAL:
3438 gdk_window_set_cursor (widget->window, NULL);
3440 case EV_VIEW_CURSOR_IBEAM:
3441 cursor = gdk_cursor_new_for_display (display, GDK_XTERM);
3443 case EV_VIEW_CURSOR_LINK:
3444 cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
3446 case EV_VIEW_CURSOR_WAIT:
3447 cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
3449 case EV_VIEW_CURSOR_HIDDEN:
3450 cursor = ev_view_create_invisible_cursor ();
3452 case EV_VIEW_CURSOR_DRAG:
3453 cursor = gdk_cursor_new_for_display (display, GDK_FLEUR);
3458 gdk_window_set_cursor (widget->window, cursor);
3459 gdk_cursor_unref (cursor);
3465 ev_view_hide_cursor (EvView *view)
3467 ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
3471 ev_view_show_cursor (EvView *view)
3473 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
3476 /*** Enum description for usage in signal ***/
3479 ev_sizing_mode_get_type (void)
3481 static GType etype = 0;
3483 static const GEnumValue values[] = {
3484 { EV_SIZING_FIT_WIDTH, "EV_SIZING_FIT_WIDTH", "fit-width" },
3485 { EV_SIZING_BEST_FIT, "EV_SIZING_BEST_FIT", "best-fit" },
3486 { EV_SIZING_FREE, "EV_SIZING_FREE", "free" },
3489 etype = g_enum_register_static ("EvSizingMode", values);