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;
153 EvLink *hovered_link;
155 EvPageCache *page_cache;
156 EvPixbufCache *pixbuf_cache;
162 EvJobRender *current_job;
174 gboolean presentation;
175 EvSizingMode sizing_mode;
177 PendingScroll pending_scroll;
178 gboolean pending_resize;
181 struct _EvViewClass {
182 GtkWidgetClass parent_class;
184 void (*set_scroll_adjustments) (EvView *view,
185 GtkAdjustment *hadjustment,
186 GtkAdjustment *vadjustment);
187 void (*binding_activated) (EvView *view,
188 GtkScrollType scroll,
189 gboolean horizontal);
190 void (*zoom_invalid) (EvView *view);
194 static void scroll_to_current_page (EvView *view,
195 GtkOrientation orientation);
196 static void ev_view_set_scroll_adjustments (EvView *view,
197 GtkAdjustment *hadjustment,
198 GtkAdjustment *vadjustment);
199 static void view_update_range_and_current_page (EvView *view);
200 static void set_scroll_adjustment (EvView *view,
201 GtkOrientation orientation,
202 GtkAdjustment *adjustment);
203 static void ev_view_set_scroll_adjustments (EvView *view,
204 GtkAdjustment *hadjustment,
205 GtkAdjustment *vadjustment);
206 static void add_scroll_binding_keypad (GtkBindingSet *binding_set,
208 GtkScrollType scroll,
209 gboolean horizontal);
210 static void ev_view_binding_activated (EvView *view,
211 GtkScrollType scroll,
212 gboolean horizontal);
213 static void ensure_rectangle_is_visible (EvView *view,
216 /*** Geometry computations ***/
217 static void compute_border (EvView *view,
221 static void get_page_y_offset (EvView *view,
225 static gboolean get_page_extents (EvView *view,
227 GdkRectangle *page_area,
229 static void view_rect_to_doc_rect (EvView *view,
230 GdkRectangle *view_rect,
231 GdkRectangle *page_area,
232 EvRectangle *doc_rect);
233 static void doc_rect_to_view_rect (EvView *view,
235 EvRectangle *doc_rect,
236 GdkRectangle *view_rect);
237 static void find_page_at_location (EvView *view,
245 static EvLink* get_link_at_location (EvView *view,
248 static char* tip_from_link (EvView *view,
250 static void handle_link_over_xy (EvView *view,
253 /*** GtkWidget implementation ***/
254 static void ev_view_size_request_continuous_dual_page (EvView *view,
255 GtkRequisition *requisition);
256 static void ev_view_size_request_continuous (EvView *view,
257 GtkRequisition *requisition);
258 static void ev_view_size_request_dual_page (EvView *view,
259 GtkRequisition *requisition);
260 static void ev_view_size_request_single_page (EvView *view,
261 GtkRequisition *requisition);
262 static void ev_view_size_request (GtkWidget *widget,
263 GtkRequisition *requisition);
264 static void ev_view_size_allocate (GtkWidget *widget,
265 GtkAllocation *allocation);
266 static void ev_view_realize (GtkWidget *widget);
267 static void ev_view_unrealize (GtkWidget *widget);
268 static gboolean ev_view_scroll_event (GtkWidget *widget,
269 GdkEventScroll *event);
270 static gboolean ev_view_expose_event (GtkWidget *widget,
271 GdkEventExpose *event);
272 static gboolean ev_view_button_press_event (GtkWidget *widget,
273 GdkEventButton *event);
274 static gboolean ev_view_motion_notify_event (GtkWidget *widget,
275 GdkEventMotion *event);
276 static gboolean ev_view_button_release_event (GtkWidget *widget,
277 GdkEventButton *event);
278 static gboolean ev_view_enter_notify_event (GtkWidget *widget,
279 GdkEventCrossing *event);
280 static gboolean ev_view_leave_notify_event (GtkWidget *widget,
281 GdkEventCrossing *event);
282 static void ev_view_style_set (GtkWidget *widget,
283 GtkStyle *old_style);
286 static guint32 ev_gdk_color_to_rgb (const GdkColor *color);
287 static void draw_rubberband (GtkWidget *widget,
289 const GdkRectangle *rect,
291 static void highlight_find_results (EvView *view,
293 static void draw_one_page (EvView *view,
295 GdkRectangle *page_area,
297 GdkRectangle *expose_area);
300 static void find_changed_cb (EvDocument *document,
303 static void job_finished_cb (EvPixbufCache *pixbuf_cache,
305 static void page_changed_cb (EvPageCache *page_cache,
308 static void on_adjustment_value_changed (GtkAdjustment *adjustment,
312 static void ev_view_finalize (GObject *object);
313 static void ev_view_destroy (GtkObject *object);
314 static void ev_view_set_property (GObject *object,
318 static void ev_view_get_property (GObject *object,
322 static void ev_view_class_init (EvViewClass *class);
323 static void ev_view_init (EvView *view);
325 /*** Zoom and sizing ***/
326 static double zoom_for_size_fit_width (int doc_width,
331 static double zoom_for_size_best_fit (int doc_width,
337 static void ev_view_zoom_for_size_presentation (EvView *view,
340 static void ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
345 static void ev_view_zoom_for_size_continuous (EvView *view,
350 static void ev_view_zoom_for_size_dual_page (EvView *view,
355 static void ev_view_zoom_for_size_single_page (EvView *view,
361 static GdkCursor* ev_view_create_invisible_cursor (void);
362 static void ev_view_set_cursor (EvView *view,
363 EvViewCursor new_cursor);
365 /*** Status messages ***/
366 static void ev_view_set_status (EvView *view,
367 const char *message);
368 static void update_find_status_message (EvView *view);
369 static void ev_view_set_find_status (EvView *view,
370 const char *message);
372 static void jump_to_find_result (EvView *view);
373 static void jump_to_find_page (EvView *view,
374 EvViewFindDirection direction);
377 static void compute_selections (EvView *view,
380 static void clear_selection (EvView *view);
381 static void selection_free (EvViewSelection *selection);
382 static char* get_selected_text (EvView *ev_view);
383 static void ev_view_primary_get_cb (GtkClipboard *clipboard,
384 GtkSelectionData *selection_data,
387 static void ev_view_primary_clear_cb (GtkClipboard *clipboard,
389 static void ev_view_update_primary_selection (EvView *ev_view);
392 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
395 scroll_to_current_page (EvView *view, GtkOrientation orientation)
397 GdkRectangle page_area;
400 if (view->document == NULL) {
404 get_page_extents (view, view->current_page, &page_area, &border);
406 if (orientation == GTK_ORIENTATION_VERTICAL) {
407 if (view->continuous) {
408 gtk_adjustment_clamp_page (view->vadjustment,
409 page_area.y - view->spacing,
410 page_area.y + view->vadjustment->page_size);
412 gtk_adjustment_set_value (view->vadjustment,
413 view->vadjustment->lower);
416 if (view->dual_page) {
417 gtk_adjustment_clamp_page (view->hadjustment,
419 page_area.x + view->hadjustment->page_size);
421 gtk_adjustment_set_value (view->hadjustment,
422 CLAMP (view->hadjustment->value,
423 view->hadjustment->lower,
424 view->hadjustment->upper -
425 view->hadjustment->page_size));
431 view_set_adjustment_values (EvView *view,
432 GtkOrientation orientation)
434 GtkWidget *widget = GTK_WIDGET (view);
435 GtkAdjustment *adjustment;
442 if (orientation == GTK_ORIENTATION_HORIZONTAL) {
443 requisition = widget->requisition.width;
444 allocation = widget->allocation.width;
445 adjustment = view->hadjustment;
447 requisition = widget->requisition.height;
448 allocation = widget->allocation.height;
449 adjustment = view->vadjustment;
456 switch (view->pending_scroll) {
457 case SCROLL_TO_KEEP_POSITION:
458 factor = (adjustment->value) / adjustment->upper;
460 case SCROLL_TO_CURRENT_PAGE:
462 case SCROLL_TO_CENTER:
463 factor = (adjustment->value + adjustment->page_size * 0.5) / adjustment->upper;
467 adjustment->page_size = allocation;
468 adjustment->step_increment = allocation * 0.1;
469 adjustment->page_increment = allocation * 0.9;
470 adjustment->lower = 0;
471 adjustment->upper = MAX (allocation, requisition);
474 * We add 0.5 to the values before to average out our rounding errors.
476 switch (view->pending_scroll) {
477 case SCROLL_TO_KEEP_POSITION:
478 new_value = CLAMP (adjustment->upper * factor + 0.5, 0, adjustment->upper - adjustment->page_size);
479 gtk_adjustment_set_value (adjustment, (int)new_value);
481 case SCROLL_TO_CURRENT_PAGE:
482 scroll_to_current_page (view, orientation);
484 case SCROLL_TO_CENTER:
485 new_value = CLAMP (adjustment->upper * factor - adjustment->page_size * 0.5 + 0.5,
486 0, adjustment->upper - adjustment->page_size);
487 gtk_adjustment_set_value (adjustment, (int)new_value);
491 gtk_adjustment_changed (adjustment);
495 view_update_range_and_current_page (EvView *view)
497 if (view->pending_scroll != SCROLL_TO_KEEP_POSITION)
500 /* Presentation trumps all other modes */
501 if (view->presentation) {
502 view->start_page = view->current_page;
503 view->end_page = view->current_page;
504 } else if (view->continuous) {
505 GdkRectangle current_area, unused, page_area;
508 gboolean found = FALSE;
511 if (!(view->vadjustment && view->hadjustment))
514 current_area.x = view->hadjustment->value;
515 current_area.width = view->hadjustment->upper;
516 current_area.y = view->vadjustment->value;
517 current_area.height = view->vadjustment->page_size;
519 for (i = 0; i < ev_page_cache_get_n_pages (view->page_cache); i++) {
521 get_page_extents (view, i, &page_area, &border);
523 if (gdk_rectangle_intersect (¤t_area, &page_area, &unused)) {
525 view->start_page = i;
535 current_page = ev_page_cache_get_current_page (view->page_cache);
537 if (current_page < view->start_page || current_page > view->end_page) {
538 view->current_page = view->start_page;
539 ev_page_cache_set_current_page (view->page_cache, view->start_page);
542 if (view->dual_page) {
543 if (view->current_page % 2 == 0) {
544 view->start_page = view->current_page;
545 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache))
546 view->end_page = view->start_page + 1;
548 view->end_page = view->start_page;
550 view->start_page = view->current_page - 1;
551 view->end_page = view->current_page;
554 view->start_page = view->current_page;
555 view->end_page = view->current_page;
559 ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
564 view->selection_info.selections);
568 set_scroll_adjustment (EvView *view,
569 GtkOrientation orientation,
570 GtkAdjustment *adjustment)
572 GtkAdjustment **to_set;
574 if (orientation == GTK_ORIENTATION_HORIZONTAL)
575 to_set = &view->hadjustment;
577 to_set = &view->vadjustment;
579 if (*to_set != adjustment) {
581 g_signal_handlers_disconnect_by_func (*to_set,
582 (gpointer) on_adjustment_value_changed,
584 g_object_unref (*to_set);
587 *to_set = adjustment;
588 view_set_adjustment_values (view, orientation);
591 g_object_ref (*to_set);
592 g_signal_connect (*to_set, "value_changed",
593 G_CALLBACK (on_adjustment_value_changed), view);
599 ev_view_set_scroll_adjustments (EvView *view,
600 GtkAdjustment *hadjustment,
601 GtkAdjustment *vadjustment)
603 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
604 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
606 on_adjustment_value_changed (NULL, view);
610 add_scroll_binding_keypad (GtkBindingSet *binding_set,
612 GtkScrollType scroll,
615 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
617 gtk_binding_entry_add_signal (binding_set, keyval, 0,
618 "binding_activated", 2,
619 GTK_TYPE_SCROLL_TYPE, scroll,
620 G_TYPE_BOOLEAN, horizontal);
621 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
622 "binding_activated", 2,
623 GTK_TYPE_SCROLL_TYPE, scroll,
624 G_TYPE_BOOLEAN, horizontal);
628 ev_view_scroll (EvView *view,
631 GtkAdjustment *adjustment;
632 double value, increment;
633 gboolean first_page = FALSE;
634 gboolean last_page = FALSE;
636 /* Assign values for increment and vertical adjustment */
637 adjustment = view->vadjustment;
638 increment = adjustment->page_size * 0.75;
639 value = adjustment->value;
641 /* Assign boolean for first and last page */
642 if (view->current_page == 0)
644 if (view->current_page == ev_page_cache_get_n_pages (view->page_cache) - 1)
648 case EV_SCROLL_PAGE_BACKWARD:
649 /* Do not jump backwards if at the first page */
650 if (value == (adjustment->lower) && first_page) {
652 /* At the top of a page, assign the upper bound limit of previous page */
653 } else if (value == (adjustment->lower)) {
654 value = adjustment->upper - adjustment->page_size;
655 ev_page_cache_set_current_page (view->page_cache, view->current_page - 1);
656 /* Jump to the top */
658 value = MAX (value - increment, adjustment->lower);
661 case EV_SCROLL_PAGE_FORWARD:
662 /* Do not jump forward if at the last page */
663 if (value == (adjustment->upper - adjustment->page_size) && last_page) {
665 /* At the bottom of a page, assign the lower bound limit of next page */
666 } else if (value == (adjustment->upper - adjustment->page_size)) {
668 ev_page_cache_set_current_page (view->page_cache, view->current_page + 1);
669 /* Jump to the bottom */
671 value = MIN (value + increment, adjustment->upper - adjustment->page_size);
678 gtk_adjustment_set_value (adjustment, value);
682 ev_view_binding_activated (EvView *view,
683 GtkScrollType scroll,
686 GtkAdjustment *adjustment;
689 if (view->presentation) {
691 case GTK_SCROLL_STEP_BACKWARD:
692 ev_view_previous_page (view);
694 case GTK_SCROLL_STEP_FORWARD:
695 ev_view_next_page (view);
704 adjustment = view->hadjustment;
706 adjustment = view->vadjustment;
709 value = adjustment->value;
712 case GTK_SCROLL_STEP_BACKWARD:
713 value -= adjustment->step_increment;
715 case GTK_SCROLL_STEP_FORWARD:
716 value += adjustment->step_increment;
722 value = CLAMP (value, adjustment->lower,
723 adjustment->upper - adjustment->page_size);
725 gtk_adjustment_set_value (adjustment, value);
731 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
733 GtkWidget *widget = GTK_WIDGET (view);
734 GtkAdjustment *adjustment;
737 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
739 adjustment = view->vadjustment;
741 if (rect->y < adjustment->value) {
742 value = MAX (adjustment->lower, rect->y - MARGIN);
743 gtk_adjustment_set_value (view->vadjustment, value);
744 } else if (rect->y + rect->height >
745 adjustment->value + widget->allocation.height) {
746 value = MIN (adjustment->upper, rect->y + rect->height -
747 widget->allocation.height + MARGIN);
748 gtk_adjustment_set_value (view->vadjustment, value);
751 adjustment = view->hadjustment;
753 if (rect->x < adjustment->value) {
754 value = MAX (adjustment->lower, rect->x - MARGIN);
755 gtk_adjustment_set_value (view->hadjustment, value);
756 } else if (rect->x + rect->height >
757 adjustment->value + widget->allocation.width) {
758 value = MIN (adjustment->upper, rect->x + rect->width -
759 widget->allocation.width + MARGIN);
760 gtk_adjustment_set_value (view->hadjustment, value);
764 /*** Geometry computations ***/
767 compute_border (EvView *view, int width, int height, GtkBorder *border)
769 if (view->presentation) {
775 ev_document_misc_get_page_border_size (width, height, border);
780 get_page_y_offset (EvView *view, int page, double zoom, int *y_offset)
782 int max_width, offset;
785 g_return_if_fail (y_offset != NULL);
787 ev_page_cache_get_max_width (view->page_cache, view->rotation, zoom, &max_width);
789 compute_border (view, max_width, max_width, &border);
791 if (view->dual_page) {
792 ev_page_cache_get_height_to_page (view->page_cache, page,
793 view->rotation, zoom, NULL, &offset);
794 offset += (page / 2 + 1) * view->spacing + (page / 2) * (border.top + border.bottom);
796 ev_page_cache_get_height_to_page (view->page_cache, page,
797 view->rotation, zoom, &offset, NULL);
798 offset += (page + 1) * view->spacing + page * (border.top + border.bottom);
806 get_page_extents (EvView *view,
808 GdkRectangle *page_area,
814 widget = GTK_WIDGET (view);
816 /* Get the size of the page */
817 ev_page_cache_get_size (view->page_cache, page,
821 compute_border (view, width, height, border);
822 page_area->width = width + border->left + border->right;
823 page_area->height = height + border->top + border->bottom;
825 if (view->presentation) {
826 page_area->x = (MAX (0, widget->allocation.width - width))/2;
827 page_area->y = (MAX (0, widget->allocation.height - height))/2;
828 } else if (view->continuous) {
832 ev_page_cache_get_max_width (view->page_cache, view->rotation,
833 view->scale, &max_width);
834 max_width = max_width + border->left + border->right;
835 /* Get the location of the bounding box */
836 if (view->dual_page) {
837 x = view->spacing + (page % 2) * (max_width + view->spacing);
838 x = x + MAX (0, widget->allocation.width - (max_width * 2 + view->spacing * 3)) / 2;
840 x = x + (max_width - width - border->left - border->right);
843 x = x + MAX (0, widget->allocation.width - (width + view->spacing * 2)) / 2;
846 get_page_y_offset (view, page, view->scale, &y);
852 if (view->dual_page) {
853 gint width_2, height_2;
854 gint max_width = width;
855 gint max_height = height;
856 GtkBorder overall_border;
859 other_page = page ^ 1;
861 /* First, we get the bounding box of the two pages */
862 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
863 ev_page_cache_get_size (view->page_cache,
867 &width_2, &height_2);
870 if (height_2 > height)
871 max_height = height_2;
873 compute_border (view, max_width, max_height, &overall_border);
875 /* Find the offsets */
879 /* Adjust for being the left or right page */
881 x = x + max_width - width;
883 x = x + (max_width + overall_border.left + overall_border.right) + view->spacing;
885 y = y + (max_height - height)/2;
887 /* Adjust for extra allocation */
888 x = x + MAX (0, widget->allocation.width -
889 ((max_width + overall_border.left + overall_border.right) * 2 + view->spacing * 3))/2;
890 y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
895 /* Adjust for extra allocation */
896 x = x + MAX (0, widget->allocation.width - (width + border->left + border->right + view->spacing * 2))/2;
897 y = y + MAX (0, widget->allocation.height - (height + border->top + border->bottom + view->spacing * 2))/2;
908 view_point_to_doc_point (EvView *view,
909 GdkPoint *view_point,
910 GdkRectangle *page_area,
914 *doc_point_x = (double) (view_point->x - page_area->x) / view->scale;
915 *doc_point_y = (double) (view_point->y - page_area->y) / view->scale;
919 view_rect_to_doc_rect (EvView *view,
920 GdkRectangle *view_rect,
921 GdkRectangle *page_area,
922 EvRectangle *doc_rect)
924 doc_rect->x1 = (double) (view_rect->x - page_area->x) / view->scale;
925 doc_rect->y1 = (double) (view_rect->y - page_area->y) / view->scale;
926 doc_rect->x2 = doc_rect->x1 + (double) view_rect->width / view->scale;
927 doc_rect->y2 = doc_rect->y1 + (double) view_rect->height / view->scale;
931 doc_point_to_view_point (EvView *view,
934 GdkPoint *view_point)
936 GdkRectangle page_area;
941 ev_page_cache_get_size (view->page_cache, page,
946 if (view->rotation == 0) {
949 } else if (view->rotation == 90) {
950 x = width - doc_point->y;
952 } else if (view->rotation == 180) {
953 x = width - doc_point->x;
954 y = height - doc_point->y;
955 } else if (view->rotation == 270) {
957 y = height - doc_point->x;
959 g_assert_not_reached ();
962 get_page_extents (view, page, &page_area, &border);
964 view_point->x = x * view->scale + page_area.x;
965 view_point->y = y * view->scale + page_area.y;
969 doc_rect_to_view_rect (EvView *view,
971 EvRectangle *doc_rect,
972 GdkRectangle *view_rect)
974 GdkRectangle page_area;
979 ev_page_cache_get_size (view->page_cache, page,
984 if (view->rotation == 0) {
987 w = doc_rect->x2 - doc_rect->x1;
988 h = doc_rect->y2 - doc_rect->y1;
989 } else if (view->rotation == 90) {
990 x = width - doc_rect->y2;
992 w = doc_rect->y2 - doc_rect->y1;
993 h = doc_rect->x2 - doc_rect->x1;
994 } else if (view->rotation == 180) {
995 x = width - doc_rect->x2;
996 y = height - doc_rect->y2;
997 w = doc_rect->x2 - doc_rect->x1;
998 h = doc_rect->y2 - doc_rect->y1;
999 } else if (view->rotation == 270) {
1001 y = height - doc_rect->x2;
1002 w = doc_rect->y2 - doc_rect->y1;
1003 h = doc_rect->x2 - doc_rect->x1;
1005 g_assert_not_reached ();
1008 get_page_extents (view, page, &page_area, &border);
1010 view_rect->x = x * view->scale + page_area.x;
1011 view_rect->y = y * view->scale + page_area.y;
1012 view_rect->width = w * view->scale;
1013 view_rect->height = h * view->scale;
1017 find_page_at_location (EvView *view,
1026 if (view->document == NULL)
1030 g_assert (x_offset);
1031 g_assert (y_offset);
1033 for (i = view->start_page; i <= view->end_page; i++) {
1034 GdkRectangle page_area;
1037 if (! get_page_extents (view, i, &page_area, &border))
1040 if ((x >= page_area.x + border.left) &&
1041 (x < page_area.x + page_area.width - border.right) &&
1042 (y >= page_area.y + border.top) &&
1043 (y < page_area.y + page_area.height - border.bottom)) {
1045 *x_offset = x - (page_area.x + border.left);
1046 *y_offset = y - (page_area.y + border.top);
1055 location_in_text (EvView *view,
1061 gint x_offset = 0, y_offset = 0;
1063 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1068 region = ev_pixbuf_cache_get_text_mapping (view->pixbuf_cache, page);
1071 return gdk_region_point_in (region, x_offset / view->scale, y_offset / view->scale);
1078 get_link_at_location (EvView *view,
1083 gint x_offset = 0, y_offset = 0;
1084 GList *link_mapping;
1086 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1091 link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
1094 return ev_link_mapping_find (link_mapping, x_offset / view->scale, y_offset / view->scale);
1100 goto_xyz_link (EvView *view, EvLink *link)
1102 GdkPoint view_point;
1107 zoom = ev_link_get_zoom (link);
1108 page = ev_link_get_page (link);
1109 ev_page_cache_get_size (view->page_cache, page, 0, 1.0, NULL, &height);
1111 ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1113 ev_view_set_zoom (view, zoom, FALSE);
1116 doc_point.x = ev_link_get_left (link);
1117 doc_point.y = height - ev_link_get_top (link);
1118 doc_point_to_view_point (view, page, &doc_point, &view_point);
1120 gtk_adjustment_set_value (view->hadjustment, view_point.x);
1121 gtk_adjustment_set_value (view->vadjustment, view_point.y);
1125 ev_view_goto_link (EvView *view, EvLink *link)
1131 type = ev_link_get_link_type (link);
1134 case EV_LINK_TYPE_TITLE:
1136 case EV_LINK_TYPE_PAGE:
1137 page = ev_link_get_page (link);
1138 ev_page_cache_set_current_page (view->page_cache, page);
1140 case EV_LINK_TYPE_PAGE_XYZ:
1141 goto_xyz_link (view, link);
1143 case EV_LINK_TYPE_EXTERNAL_URI:
1144 uri = ev_link_get_uri (link);
1145 gnome_vfs_url_show (uri);
1151 tip_from_link (EvView *view, EvLink *link)
1157 type = ev_link_get_link_type (link);
1160 case EV_LINK_TYPE_TITLE:
1161 if (ev_link_get_title (link))
1162 msg = g_strdup (ev_link_get_title (link));
1164 case EV_LINK_TYPE_PAGE:
1165 case EV_LINK_TYPE_PAGE_XYZ:
1166 page_label = ev_page_cache_get_page_label (view->page_cache, ev_link_get_page (link));
1167 msg = g_strdup_printf (_("Go to page %s"), page_label);
1168 g_free (page_label);
1170 case EV_LINK_TYPE_EXTERNAL_URI:
1171 msg = g_strdup (ev_link_get_uri (link));
1181 handle_link_over_xy (EvView *view, gint x, gint y)
1185 link = get_link_at_location (view, x + view->scroll_x, y + view->scroll_y);
1187 if (view->link_tooltip == NULL) {
1188 view->link_tooltip = ev_tooltip_new (GTK_WIDGET (view));
1191 if (view->hovered_link != link) {
1192 view->hovered_link = link;
1193 ev_tooltip_deactivate (EV_TOOLTIP (view->link_tooltip));
1197 char *msg = tip_from_link (view, link);
1199 ev_tooltip_set_position (EV_TOOLTIP (view->link_tooltip), x, y);
1200 ev_tooltip_set_text (EV_TOOLTIP (view->link_tooltip), msg);
1201 ev_tooltip_activate (EV_TOOLTIP (view->link_tooltip));
1204 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
1205 } else if (location_in_text (view, x + view->scroll_x, y + view->scroll_y)) {
1206 ev_view_set_cursor (view, EV_VIEW_CURSOR_IBEAM);
1208 ev_view_set_status (view, NULL);
1209 if (view->cursor == EV_VIEW_CURSOR_LINK ||
1210 view->cursor == EV_VIEW_CURSOR_IBEAM)
1211 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1216 /*** GtkWidget implementation ***/
1219 ev_view_size_request_continuous_dual_page (EvView *view,
1220 GtkRequisition *requisition)
1226 ev_page_cache_get_max_width (view->page_cache, view->rotation,
1227 view->scale, &max_width);
1228 compute_border (view, max_width, max_width, &border);
1230 n_pages = ev_page_cache_get_n_pages (view->page_cache) + 1;
1232 requisition->width = (max_width + border.left + border.right) * 2 + (view->spacing * 3);
1233 get_page_y_offset (view, n_pages, view->scale, &requisition->height);
1235 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1236 requisition->width = 1;
1237 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1238 requisition->width = 1;
1239 /* FIXME: This could actually be set on one page docs or docs
1240 * with a strange aspect ratio. */
1241 /* requisition->height = 1;*/
1246 ev_view_size_request_continuous (EvView *view,
1247 GtkRequisition *requisition)
1254 ev_page_cache_get_max_width (view->page_cache, view->rotation,
1255 view->scale, &max_width);
1256 n_pages = ev_page_cache_get_n_pages (view->page_cache);
1257 compute_border (view, max_width, max_width, &border);
1259 requisition->width = max_width + (view->spacing * 2) + border.left + border.right;
1260 get_page_y_offset (view, n_pages, view->scale, &requisition->height);
1262 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1263 requisition->width = 1;
1264 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1265 requisition->width = 1;
1266 /* FIXME: This could actually be set on one page docs or docs
1267 * with a strange aspect ratio. */
1268 /* requisition->height = 1;*/
1273 ev_view_size_request_dual_page (EvView *view,
1274 GtkRequisition *requisition)
1279 /* Find the largest of the two. */
1280 ev_page_cache_get_size (view->page_cache,
1285 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache)) {
1286 gint width_2, height_2;
1287 ev_page_cache_get_size (view->page_cache,
1288 view->current_page + 1,
1291 &width_2, &height_2);
1292 if (width_2 > width) {
1297 compute_border (view, width, height, &border);
1299 requisition->width = ((width + border.left + border.right) * 2) +
1300 (view->spacing * 3);
1301 requisition->height = (height + border.top + border.bottom) +
1302 (view->spacing * 2);
1304 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1305 requisition->width = 1;
1306 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1307 requisition->width = 1;
1308 requisition->height = 1;
1313 ev_view_size_request_single_page (EvView *view,
1314 GtkRequisition *requisition)
1319 ev_page_cache_get_size (view->page_cache,
1324 compute_border (view, width, height, &border);
1326 requisition->width = width + border.left + border.right + (2 * view->spacing);
1327 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1329 if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1330 requisition->width = 1;
1331 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1332 } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1333 requisition->width = 1;
1334 requisition->height = 1;
1339 ev_view_size_request (GtkWidget *widget,
1340 GtkRequisition *requisition)
1342 EvView *view = EV_VIEW (widget);
1344 if (view->document == NULL) {
1345 requisition->width = 1;
1346 requisition->height = 1;
1350 if (view->presentation) {
1351 requisition->width = 1;
1352 requisition->height = 1;
1356 if (view->continuous && view->dual_page)
1357 ev_view_size_request_continuous_dual_page (view, requisition);
1358 else if (view->continuous)
1359 ev_view_size_request_continuous (view, requisition);
1360 else if (view->dual_page)
1361 ev_view_size_request_dual_page (view, requisition);
1363 ev_view_size_request_single_page (view, requisition);
1367 ev_view_size_allocate (GtkWidget *widget,
1368 GtkAllocation *allocation)
1370 EvView *view = EV_VIEW (widget);
1372 if (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
1373 view->sizing_mode == EV_SIZING_BEST_FIT) {
1375 g_signal_emit (view, signals[SIGNAL_ZOOM_INVALID], 0);
1377 ev_view_size_request (widget, &widget->requisition);
1380 view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
1381 view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
1383 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
1384 view->pending_resize = FALSE;
1387 view_update_range_and_current_page (view);
1389 GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
1393 ev_view_realize (GtkWidget *widget)
1395 EvView *view = EV_VIEW (widget);
1396 GdkWindowAttr attributes;
1398 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
1401 attributes.window_type = GDK_WINDOW_CHILD;
1402 attributes.wclass = GDK_INPUT_OUTPUT;
1403 attributes.visual = gtk_widget_get_visual (widget);
1404 attributes.colormap = gtk_widget_get_colormap (widget);
1406 attributes.x = widget->allocation.x;
1407 attributes.y = widget->allocation.y;
1408 attributes.width = widget->allocation.width;
1409 attributes.height = widget->allocation.height;
1410 attributes.event_mask = GDK_EXPOSURE_MASK |
1411 GDK_BUTTON_PRESS_MASK |
1412 GDK_BUTTON_RELEASE_MASK |
1414 GDK_KEY_PRESS_MASK |
1415 GDK_POINTER_MOTION_MASK |
1416 GDK_ENTER_NOTIFY_MASK |
1417 GDK_LEAVE_NOTIFY_MASK;
1419 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1421 GDK_WA_X | GDK_WA_Y |
1424 gdk_window_set_user_data (widget->window, widget);
1425 widget->style = gtk_style_attach (widget->style, widget->window);
1427 if (view->presentation)
1428 gdk_window_set_background (widget->window, &widget->style->black);
1430 gdk_window_set_background (widget->window, &widget->style->mid [GTK_STATE_NORMAL]);
1434 ev_view_unrealize (GtkWidget *widget)
1436 GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
1440 ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event)
1442 EvView *view = EV_VIEW (widget);
1444 if ((event->state & GDK_CONTROL_MASK) != 0) {
1446 ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1448 if (event->direction == GDK_SCROLL_UP ||
1449 event->direction == GDK_SCROLL_LEFT) {
1450 if (ev_view_can_zoom_in (view)) {
1451 ev_view_zoom_in (view);
1454 if (ev_view_can_zoom_out (view)) {
1455 ev_view_zoom_out (view);
1461 if ((event->state & GDK_SHIFT_MASK) != 0) {
1462 if (event->direction == GDK_SCROLL_UP)
1463 event->direction = GDK_SCROLL_LEFT;
1464 if (event->direction == GDK_SCROLL_DOWN)
1465 event->direction = GDK_SCROLL_RIGHT;
1471 static EvViewSelection *
1472 find_selection_for_page (EvView *view,
1477 for (list = view->selection_info.selections; list != NULL; list = list->next) {
1478 EvViewSelection *selection;
1480 selection = (EvViewSelection *) list->data;
1482 if (selection->page == page)
1490 ev_view_expose_event (GtkWidget *widget,
1491 GdkEventExpose *event)
1493 EvView *view = EV_VIEW (widget);
1496 if (view->document == NULL)
1499 for (i = view->start_page; i <= view->end_page; i++) {
1500 GdkRectangle page_area;
1503 if (!get_page_extents (view, i, &page_area, &border))
1506 page_area.x -= view->scroll_x;
1507 page_area.y -= view->scroll_y;
1509 draw_one_page (view, i, &page_area, &border, &(event->area));
1511 if (EV_IS_DOCUMENT_FIND (view->document))
1512 highlight_find_results (view, i);
1519 ev_view_button_press_event (GtkWidget *widget,
1520 GdkEventButton *event)
1522 EvView *view = EV_VIEW (widget);
1524 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
1525 gtk_widget_grab_focus (widget);
1528 view->pressed_button = event->button;
1530 switch (event->button) {
1532 if (view->selection_info.selections) {
1533 clear_selection (view);
1534 gtk_widget_queue_draw (widget);
1537 view->selection_info.start.x = event->x + view->scroll_x;
1538 view->selection_info.start.y = event->y + view->scroll_y;
1541 /* use root coordinates as reference point because
1542 * scrolling changes window relative coordinates */
1543 view->drag_info.start.x = event->x_root;
1544 view->drag_info.start.y = event->y_root;
1545 view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment);
1546 view->drag_info.vadj = gtk_adjustment_get_value (view->vadjustment);
1548 ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
1558 selection_update_idle_cb (EvView *view)
1561 point.x = view->motion_x;
1562 point.y = view->motion_y;
1563 compute_selections (view, &view->selection_info.start, &point);
1565 view->selection_update_id = 0;
1570 ev_view_motion_notify_event (GtkWidget *widget,
1571 GdkEventMotion *event)
1573 EvView *view = EV_VIEW (widget);
1575 if (!view->document)
1578 /* For the Evince 0.4.x release, we limit selection to un-rotated
1581 if (view->pressed_button == 1 &&
1582 view->rotation == 0) {
1583 view->selection_info.in_selection = TRUE;
1584 view->motion_x = event->x + view->scroll_x;
1585 view->motion_y = event->y + view->scroll_y;
1587 /* Queue an idle to handle the motion. We do this because
1588 * handling any selection events in the motion could be slower
1589 * than new motion events reach us. We always put it in the
1590 * idle to make sure we catch up and don't visibly lag the
1592 if (! view->selection_update_id)
1593 view->selection_update_id = g_idle_add ((GSourceFunc)selection_update_idle_cb, view);
1596 } else if (view->pressed_button == 2) {
1597 if (!view->drag_info.in_drag) {
1600 start = gtk_drag_check_threshold (widget,
1601 view->drag_info.start.x,
1602 view->drag_info.start.y,
1605 view->drag_info.in_drag = start;
1608 if (view->drag_info.in_drag) {
1610 gdouble dhadj_value, dvadj_value;
1612 dx = event->x_root - view->drag_info.start.x;
1613 dy = event->y_root - view->drag_info.start.y;
1615 dhadj_value = view->hadjustment->page_size *
1616 (gdouble)dx / widget->allocation.width;
1617 dvadj_value = view->vadjustment->page_size *
1618 (gdouble)dy / widget->allocation.height;
1620 /* clamp scrolling to visible area */
1621 gtk_adjustment_set_value (view->hadjustment,
1622 MIN(view->drag_info.hadj - dhadj_value,
1623 view->hadjustment->upper -
1624 view->hadjustment->page_size));
1625 gtk_adjustment_set_value (view->vadjustment,
1626 MIN(view->drag_info.vadj - dvadj_value,
1627 view->vadjustment->upper -
1628 view->vadjustment->page_size));
1632 /* For the Evince 0.4.x release, we limit links to un-rotated documents
1635 } else if (view->pressed_button <= 0 &&
1636 view->rotation == 0) {
1637 handle_link_over_xy (view, event->x, event->y);
1645 ev_view_button_release_event (GtkWidget *widget,
1646 GdkEventButton *event)
1648 EvView *view = EV_VIEW (widget);
1650 if (view->pressed_button == 2) {
1651 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1654 view->pressed_button = -1;
1655 view->drag_info.in_drag = FALSE;
1657 if (view->selection_info.selections) {
1658 ev_view_update_primary_selection (view);
1659 } else if (view->document) {
1662 link = get_link_at_location (view, event->x + view->scroll_x, event->y + view->scroll_y);
1664 ev_view_goto_link (view, link);
1672 ev_view_focus_in (GtkWidget *widget,
1673 GdkEventFocus *event)
1675 if (EV_VIEW (widget)->pixbuf_cache)
1676 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
1677 gtk_widget_queue_draw (widget);
1683 ev_view_focus_out (GtkWidget *widget,
1684 GdkEventFocus *event)
1686 if (EV_VIEW (widget)->pixbuf_cache)
1687 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
1688 gtk_widget_queue_draw (widget);
1694 ev_view_leave_notify_event (GtkWidget *widget, GdkEventCrossing *event)
1696 EvView *view = EV_VIEW (widget);
1698 ev_view_set_status (view, NULL);
1700 if (view->cursor == EV_VIEW_CURSOR_LINK ||
1701 view->cursor == EV_VIEW_CURSOR_IBEAM)
1702 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1704 if (view->link_tooltip) {
1705 view->hovered_link = NULL;
1706 ev_tooltip_deactivate (EV_TOOLTIP (view->link_tooltip));
1713 ev_view_enter_notify_event (GtkWidget *widget, GdkEventCrossing *event)
1715 EvView *view = EV_VIEW (widget);
1717 handle_link_over_xy (view, event->x, event->y);
1723 ev_view_style_set (GtkWidget *widget,
1724 GtkStyle *old_style)
1726 if (EV_VIEW (widget)->pixbuf_cache)
1727 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
1729 GTK_WIDGET_CLASS (ev_view_parent_class)->style_set (widget, old_style);
1736 ev_gdk_color_to_rgb (const GdkColor *color)
1739 result = (0xff0000 | (color->red & 0xff00));
1741 result |= ((color->green & 0xff00) | (color->blue >> 8));
1746 draw_rubberband (GtkWidget *widget, GdkWindow *window,
1747 const GdkRectangle *rect, guchar alpha)
1751 GdkColor *fill_color_gdk;
1754 fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
1755 fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
1757 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
1758 rect->width, rect->height);
1759 gdk_pixbuf_fill (pixbuf, fill_color);
1761 gdk_draw_pixbuf (window, NULL, pixbuf,
1763 rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
1764 rect->width, rect->height,
1765 GDK_RGB_DITHER_NONE,
1768 g_object_unref (pixbuf);
1770 gc = gdk_gc_new (window);
1771 gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
1772 gdk_draw_rectangle (window, gc, FALSE,
1773 rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
1776 g_object_unref (gc);
1778 gdk_color_free (fill_color_gdk);
1783 highlight_find_results (EvView *view, int page)
1785 EvDocumentFind *find;
1788 g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document));
1790 find = EV_DOCUMENT_FIND (view->document);
1792 results = ev_document_find_get_n_results (find, page);
1794 for (i = 0; i < results; i++) {
1795 EvRectangle rectangle;
1796 GdkRectangle view_rectangle;
1799 if (i == view->find_result && page == view->find_page) {
1805 ev_document_find_get_result (find, page, i, &rectangle);
1806 doc_rect_to_view_rect (view, page, &rectangle, &view_rectangle);
1807 draw_rubberband (GTK_WIDGET (view), GTK_WIDGET(view)->window,
1808 &view_rectangle, alpha);
1813 draw_loading_text (EvView *view,
1814 GdkRectangle *page_area,
1815 GdkRectangle *expose_area)
1817 PangoLayout *layout;
1818 PangoFontDescription *font_desc;
1819 PangoRectangle logical_rect;
1823 const char *loading_text = _("Loading...");
1825 layout = gtk_widget_create_pango_layout (GTK_WIDGET (view), loading_text);
1827 font_desc = pango_font_description_new ();
1830 /* We set the font to be 10 points, get the size, and scale appropriately */
1831 pango_font_description_set_size (font_desc, 10 * PANGO_SCALE);
1832 pango_layout_set_font_description (layout, font_desc);
1833 pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
1835 /* Make sure we fit the middle of the page */
1836 target_width = MAX (page_area->width / 2, 1);
1837 real_scale = ((double)target_width / (double) logical_rect.width) * (PANGO_SCALE * 10);
1838 pango_font_description_set_size (font_desc, (int)real_scale);
1839 pango_layout_set_font_description (layout, font_desc);
1840 pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
1842 gtk_paint_layout (GTK_WIDGET (view)->style,
1843 GTK_WIDGET (view)->window,
1844 GTK_WIDGET_STATE (view),
1849 page_area->x + (target_width/2),
1850 page_area->y + (page_area->height - logical_rect.height) / 2,
1853 pango_font_description_free (font_desc);
1854 g_object_unref (layout);
1858 draw_one_page (EvView *view,
1860 GdkRectangle *page_area,
1862 GdkRectangle *expose_area)
1865 GdkPixbuf *current_pixbuf;
1866 GdkRectangle overlap;
1867 GdkRectangle real_page_area;
1868 EvViewSelection *selection;
1870 g_assert (view->document);
1871 if (! gdk_rectangle_intersect (page_area, expose_area, &overlap))
1874 selection = find_selection_for_page (view, page);
1875 ev_page_cache_get_size (view->page_cache,
1876 page, view->rotation,
1879 /* Render the document itself */
1880 real_page_area = *page_area;
1882 real_page_area.x += border->left;
1883 real_page_area.y += border->top;
1884 real_page_area.width -= (border->left + border->right);
1885 real_page_area.height -= (border->top + border->bottom);
1887 ev_document_misc_paint_one_page (GTK_WIDGET(view)->window,
1891 if (gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) {
1892 GdkPixbuf *selection_pixbuf = NULL;
1893 GdkPixbuf *scaled_image;
1894 GdkPixbuf *scaled_selection;
1896 current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, page);
1898 /* Get the selection pixbuf iff we have something to draw */
1899 if (current_pixbuf && view->selection_mode == EV_VIEW_SELECTION_TEXT && selection)
1900 selection_pixbuf = ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache,
1905 if (current_pixbuf == NULL)
1906 scaled_image = NULL;
1907 else if (width == gdk_pixbuf_get_width (current_pixbuf) &&
1908 height == gdk_pixbuf_get_height (current_pixbuf))
1909 scaled_image = g_object_ref (current_pixbuf);
1911 /* FIXME: We don't want to scale the whole area, just the right
1913 scaled_image = gdk_pixbuf_scale_simple (current_pixbuf,
1915 GDK_INTERP_NEAREST);
1917 if (selection_pixbuf == NULL)
1918 scaled_selection = NULL;
1919 else if (width == gdk_pixbuf_get_width (selection_pixbuf) &&
1920 height == gdk_pixbuf_get_height (selection_pixbuf))
1921 scaled_selection = g_object_ref (selection_pixbuf);
1923 /* FIXME: We don't want to scale the whole area, just the right
1925 scaled_selection = gdk_pixbuf_scale_simple (selection_pixbuf,
1927 GDK_INTERP_NEAREST);
1930 gdk_draw_pixbuf (GTK_WIDGET(view)->window,
1931 GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
1933 overlap.x - real_page_area.x,
1934 overlap.y - real_page_area.y,
1935 overlap.x, overlap.y,
1936 overlap.width, overlap.height,
1937 GDK_RGB_DITHER_NORMAL,
1939 g_object_unref (scaled_image);
1941 draw_loading_text (view,
1946 if (scaled_selection) {
1947 gdk_draw_pixbuf (GTK_WIDGET(view)->window,
1948 GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
1950 overlap.x - real_page_area.x,
1951 overlap.y - real_page_area.y,
1952 overlap.x, overlap.y,
1953 overlap.width, overlap.height,
1954 GDK_RGB_DITHER_NORMAL,
1956 g_object_unref (scaled_selection);
1961 /*** GObject functions ***/
1964 ev_view_finalize (GObject *object)
1966 EvView *view = EV_VIEW (object);
1970 g_free (view->status);
1971 g_free (view->find_status);
1973 clear_selection (view);
1975 G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
1979 ev_view_destroy (GtkObject *object)
1981 EvView *view = EV_VIEW (object);
1983 if (view->document) {
1984 g_object_unref (view->document);
1985 view->document = NULL;
1988 if (view->pixbuf_cache) {
1989 g_object_unref (view->pixbuf_cache);
1990 view->pixbuf_cache = NULL;
1993 if (view->link_tooltip) {
1994 gtk_widget_destroy (view->link_tooltip);
1997 ev_view_set_scroll_adjustments (view, NULL, NULL);
1999 GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
2003 ev_view_set_property (GObject *object,
2005 const GValue *value,
2008 EvView *view = EV_VIEW (object);
2012 case PROP_CONTINUOUS:
2013 ev_view_set_continuous (view, g_value_get_boolean (value));
2015 case PROP_DUAL_PAGE:
2016 ev_view_set_dual_page (view, g_value_get_boolean (value));
2018 case PROP_FULLSCREEN:
2019 ev_view_set_fullscreen (view, g_value_get_boolean (value));
2021 case PROP_PRESENTATION:
2022 ev_view_set_presentation (view, g_value_get_boolean (value));
2024 case PROP_SIZING_MODE:
2025 ev_view_set_sizing_mode (view, g_value_get_enum (value));
2028 ev_view_set_zoom (view, g_value_get_double (value), FALSE);
2031 ev_view_set_rotation (view, g_value_get_int (value));
2034 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
2039 ev_view_get_property (GObject *object,
2044 EvView *view = EV_VIEW (object);
2049 g_value_set_string (value, view->status);
2051 case PROP_FIND_STATUS:
2052 g_value_set_string (value, view->status);
2054 case PROP_CONTINUOUS:
2055 g_value_set_boolean (value, view->continuous);
2057 case PROP_DUAL_PAGE:
2058 g_value_set_boolean (value, view->dual_page);
2060 case PROP_FULLSCREEN:
2061 g_value_set_boolean (value, view->fullscreen);
2063 case PROP_PRESENTATION:
2064 g_value_set_boolean (value, view->presentation);
2066 case PROP_SIZING_MODE:
2067 g_value_set_enum (value, view->sizing_mode);
2070 g_value_set_double (value, view->scale);
2073 g_value_set_int (value, view->rotation);
2076 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
2081 ev_view_class_init (EvViewClass *class)
2083 GObjectClass *object_class = G_OBJECT_CLASS (class);
2084 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
2085 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
2086 GtkBindingSet *binding_set;
2088 object_class->finalize = ev_view_finalize;
2089 object_class->set_property = ev_view_set_property;
2090 object_class->get_property = ev_view_get_property;
2092 widget_class->expose_event = ev_view_expose_event;
2093 widget_class->button_press_event = ev_view_button_press_event;
2094 widget_class->motion_notify_event = ev_view_motion_notify_event;
2095 widget_class->button_release_event = ev_view_button_release_event;
2096 widget_class->focus_in_event = ev_view_focus_in;
2097 widget_class->focus_out_event = ev_view_focus_out;
2098 widget_class->size_request = ev_view_size_request;
2099 widget_class->size_allocate = ev_view_size_allocate;
2100 widget_class->realize = ev_view_realize;
2101 widget_class->unrealize = ev_view_unrealize;
2102 widget_class->scroll_event = ev_view_scroll_event;
2103 widget_class->enter_notify_event = ev_view_enter_notify_event;
2104 widget_class->leave_notify_event = ev_view_leave_notify_event;
2105 widget_class->style_set = ev_view_style_set;
2106 gtk_object_class->destroy = ev_view_destroy;
2108 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
2109 class->binding_activated = ev_view_binding_activated;
2111 widget_class->set_scroll_adjustments_signal =
2112 g_signal_new ("set-scroll-adjustments",
2113 G_OBJECT_CLASS_TYPE (object_class),
2114 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
2115 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
2117 ev_marshal_VOID__OBJECT_OBJECT,
2119 GTK_TYPE_ADJUSTMENT,
2120 GTK_TYPE_ADJUSTMENT);
2122 signals[SIGNAL_BINDING_ACTIVATED] = g_signal_new ("binding_activated",
2123 G_TYPE_FROM_CLASS (object_class),
2124 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
2125 G_STRUCT_OFFSET (EvViewClass, binding_activated),
2127 ev_marshal_VOID__ENUM_BOOLEAN,
2129 GTK_TYPE_SCROLL_TYPE,
2132 signals[SIGNAL_ZOOM_INVALID] = g_signal_new ("zoom-invalid",
2133 G_TYPE_FROM_CLASS (object_class),
2134 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
2135 G_STRUCT_OFFSET (EvViewClass, zoom_invalid),
2137 ev_marshal_VOID__VOID,
2138 G_TYPE_NONE, 0, G_TYPE_NONE);
2140 g_object_class_install_property (object_class,
2142 g_param_spec_string ("status",
2144 "The status message",
2148 g_object_class_install_property (object_class,
2150 g_param_spec_string ("find-status",
2151 "Find Status Message",
2152 "The find status message",
2156 g_object_class_install_property (object_class,
2158 g_param_spec_boolean ("continuous",
2160 "Continuous scrolling mode",
2162 G_PARAM_READWRITE));
2164 g_object_class_install_property (object_class,
2166 g_param_spec_boolean ("dual-page",
2168 "Two pages visible at once",
2170 G_PARAM_READWRITE));
2171 g_object_class_install_property (object_class,
2173 g_param_spec_boolean ("fullscreen",
2175 "Draw page in a fullscreen fashion",
2177 G_PARAM_READWRITE));
2178 g_object_class_install_property (object_class,
2180 g_param_spec_boolean ("presentation",
2182 "Draw page in presentation mode",
2184 G_PARAM_READWRITE));
2186 g_object_class_install_property (object_class,
2188 g_param_spec_enum ("sizing-mode",
2191 EV_TYPE_SIZING_MODE,
2192 EV_SIZING_FIT_WIDTH,
2193 G_PARAM_READWRITE));
2195 g_object_class_install_property (object_class,
2197 g_param_spec_double ("zoom",
2203 G_PARAM_READWRITE));
2204 g_object_class_install_property (object_class,
2206 g_param_spec_double ("rotation",
2212 G_PARAM_READWRITE));
2214 binding_set = gtk_binding_set_by_class (class);
2216 add_scroll_binding_keypad (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
2217 add_scroll_binding_keypad (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
2218 add_scroll_binding_keypad (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
2219 add_scroll_binding_keypad (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
2223 ev_view_init (EvView *view)
2225 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
2229 view->current_page = 0;
2230 view->pressed_button = -1;
2231 view->cursor = EV_VIEW_CURSOR_NORMAL;
2232 view->drag_info.in_drag = FALSE;
2233 view->selection_info.in_selection = FALSE;
2234 view->selection_mode = EV_VIEW_SELECTION_TEXT;
2235 view->continuous = TRUE;
2236 view->dual_page = FALSE;
2237 view->presentation = FALSE;
2238 view->fullscreen = FALSE;
2239 view->sizing_mode = EV_SIZING_FIT_WIDTH;
2240 view->pending_scroll = SCROLL_TO_KEEP_POSITION;
2246 find_changed_cb (EvDocument *document, int page, EvView *view)
2248 jump_to_find_page (view, EV_VIEW_FIND_NEXT);
2249 jump_to_find_result (view);
2250 update_find_status_message (view);
2252 if (view->current_page == page)
2253 gtk_widget_queue_draw (GTK_WIDGET (view));
2257 job_finished_cb (EvPixbufCache *pixbuf_cache,
2260 gtk_widget_queue_draw (GTK_WIDGET (view));
2264 page_changed_cb (EvPageCache *page_cache,
2268 if (view->current_page != new_page) {
2270 view->current_page = new_page;
2271 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2272 gtk_widget_queue_resize (GTK_WIDGET (view));
2274 if (EV_IS_DOCUMENT_FIND (view->document)) {
2275 view->find_page = new_page;
2276 view->find_result = 0;
2277 update_find_status_message (view);
2282 static void on_adjustment_value_changed (GtkAdjustment *adjustment,
2287 if (! GTK_WIDGET_REALIZED (view))
2290 if (view->hadjustment) {
2291 dx = view->scroll_x - (int) view->hadjustment->value;
2292 view->scroll_x = (int) view->hadjustment->value;
2297 if (view->vadjustment) {
2298 dy = view->scroll_y - (int) view->vadjustment->value;
2299 view->scroll_y = (int) view->vadjustment->value;
2305 if (view->pending_resize)
2306 gtk_widget_queue_draw (GTK_WIDGET (view));
2308 gdk_window_scroll (GTK_WIDGET (view)->window, dx, dy);
2312 view_update_range_and_current_page (view);
2320 view = g_object_new (EV_TYPE_VIEW, NULL);
2326 setup_caches (EvView *view)
2328 view->page_cache = ev_page_cache_get (view->document);
2329 g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
2330 view->pixbuf_cache = ev_pixbuf_cache_new (GTK_WIDGET (view), view->document);
2331 g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
2335 clear_caches (EvView *view)
2337 if (view->pixbuf_cache) {
2338 g_object_unref (view->pixbuf_cache);
2339 view->pixbuf_cache = NULL;
2342 if (view->page_cache) {
2343 view->page_cache = NULL;
2348 ev_view_set_document (EvView *view,
2349 EvDocument *document)
2351 g_return_if_fail (EV_IS_VIEW (view));
2353 if (document != view->document) {
2354 clear_caches (view);
2356 if (view->document) {
2357 g_signal_handlers_disconnect_by_func (view->document,
2360 g_object_unref (view->document);
2361 view->page_cache = NULL;
2365 view->document = document;
2366 view->find_page = 0;
2367 view->find_result = 0;
2369 if (view->document) {
2370 g_object_ref (view->document);
2371 if (EV_IS_DOCUMENT_FIND (view->document)) {
2372 g_signal_connect (view->document,
2374 G_CALLBACK (find_changed_cb),
2378 setup_caches (view);
2381 gtk_widget_queue_resize (GTK_WIDGET (view));
2385 /*** Zoom and sizing mode ***/
2387 #define EPSILON 0.0000001
2389 ev_view_set_zoom (EvView *view,
2396 scale = view->scale * factor;
2400 scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
2402 if (ABS (view->scale - scale) < EPSILON)
2405 view->scale = scale;
2406 view->pending_resize = TRUE;
2408 gtk_widget_queue_resize (GTK_WIDGET (view));
2410 g_object_notify (G_OBJECT (view), "zoom");
2414 ev_view_get_zoom (EvView *view)
2420 ev_view_get_continuous (EvView *view)
2422 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2424 return view->continuous;
2428 ev_view_set_continuous (EvView *view,
2429 gboolean continuous)
2431 g_return_if_fail (EV_IS_VIEW (view));
2433 continuous = continuous != FALSE;
2435 if (view->continuous != continuous) {
2436 view->continuous = continuous;
2437 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2438 gtk_widget_queue_resize (GTK_WIDGET (view));
2441 g_object_notify (G_OBJECT (view), "continuous");
2445 ev_view_get_dual_page (EvView *view)
2447 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2449 return view->dual_page;
2453 ev_view_set_dual_page (EvView *view,
2456 g_return_if_fail (EV_IS_VIEW (view));
2458 dual_page = dual_page != FALSE;
2460 if (view->dual_page == dual_page)
2463 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2464 view->dual_page = dual_page;
2465 /* FIXME: if we're keeping the pixbuf cache around, we should extend the
2466 * preload_cache_size to be 2 if dual_page is set.
2468 gtk_widget_queue_resize (GTK_WIDGET (view));
2470 g_object_notify (G_OBJECT (view), "dual-page");
2474 ev_view_set_fullscreen (EvView *view,
2475 gboolean fullscreen)
2477 g_return_if_fail (EV_IS_VIEW (view));
2479 fullscreen = fullscreen != FALSE;
2481 if (view->fullscreen == fullscreen)
2484 view->fullscreen = fullscreen;
2485 gtk_widget_queue_resize (GTK_WIDGET (view));
2487 g_object_notify (G_OBJECT (view), "fullscreen");
2491 ev_view_get_fullscreen (EvView *view)
2493 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2495 return view->fullscreen;
2499 ev_view_set_presentation (EvView *view,
2500 gboolean presentation)
2502 g_return_if_fail (EV_IS_VIEW (view));
2504 presentation = presentation != FALSE;
2506 if (view->presentation == presentation)
2509 view->presentation = presentation;
2510 view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
2511 gtk_widget_queue_resize (GTK_WIDGET (view));
2513 if (GTK_WIDGET_REALIZED (view)) {
2514 if (view->presentation)
2515 gdk_window_set_background (GTK_WIDGET(view)->window,
2516 >K_WIDGET (view)->style->black);
2518 gdk_window_set_background (GTK_WIDGET(view)->window,
2519 >K_WIDGET (view)->style->mid [GTK_STATE_NORMAL]);
2523 g_object_notify (G_OBJECT (view), "presentation");
2527 ev_view_get_presentation (EvView *view)
2529 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2531 return view->presentation;
2535 ev_view_set_sizing_mode (EvView *view,
2536 EvSizingMode sizing_mode)
2538 g_return_if_fail (EV_IS_VIEW (view));
2540 if (view->sizing_mode == sizing_mode)
2543 view->sizing_mode = sizing_mode;
2544 gtk_widget_queue_resize (GTK_WIDGET (view));
2546 g_object_notify (G_OBJECT (view), "sizing-mode");
2550 ev_view_get_sizing_mode (EvView *view)
2552 g_return_val_if_fail (EV_IS_VIEW (view), EV_SIZING_FREE);
2554 return view->sizing_mode;
2558 ev_view_can_zoom_in (EvView *view)
2560 return view->scale * ZOOM_IN_FACTOR <= MAX_SCALE;
2564 ev_view_can_zoom_out (EvView *view)
2566 return view->scale * ZOOM_OUT_FACTOR >= MIN_SCALE;
2570 ev_view_zoom_in (EvView *view)
2572 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2574 view->pending_scroll = SCROLL_TO_CENTER;
2575 ev_view_set_zoom (view, ZOOM_IN_FACTOR, TRUE);
2579 ev_view_zoom_out (EvView *view)
2581 g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2583 view->pending_scroll = SCROLL_TO_CENTER;
2584 ev_view_set_zoom (view, ZOOM_OUT_FACTOR, TRUE);
2588 ev_view_rotate_right (EvView *view)
2590 int rotation = view->rotation + 90;
2592 if (rotation >= 360) {
2596 ev_view_set_rotation (view, rotation);
2600 ev_view_rotate_left (EvView *view)
2602 int rotation = view->rotation - 90;
2608 ev_view_set_rotation (view, rotation);
2612 ev_view_set_rotation (EvView *view, int rotation)
2614 view->rotation = rotation;
2616 if (view->pixbuf_cache) {
2617 ev_pixbuf_cache_clear (view->pixbuf_cache);
2618 gtk_widget_queue_resize (GTK_WIDGET (view));
2622 clear_selection (view);
2624 g_object_notify (G_OBJECT (view), "rotation");
2628 ev_view_get_rotation (EvView *view)
2630 return view->rotation;
2634 zoom_for_size_fit_width (int doc_width,
2642 scale = (double)target_width / doc_width;
2644 if (doc_height * scale > target_height)
2645 scale = (double) (target_width - vsb_width) / doc_width;
2651 zoom_for_size_best_fit (int doc_width,
2661 w_scale = (double)target_width / doc_width;
2662 h_scale = (double)target_height / doc_height;
2664 if (doc_height * w_scale > target_height)
2665 w_scale = (double) (target_width - vsb_width) / doc_width;
2666 if (doc_width * h_scale > target_width)
2667 h_scale = (double) (target_height - hsb_width) / doc_height;
2669 return MIN (w_scale, h_scale);
2674 ev_view_zoom_for_size_presentation (EvView *view,
2678 int doc_width, doc_height;
2681 ev_page_cache_get_size (view->page_cache,
2687 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, 0, 0);
2688 ev_view_set_zoom (view, scale, FALSE);
2692 ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
2698 int doc_width, doc_height;
2702 ev_page_cache_get_max_width (view->page_cache,
2706 ev_page_cache_get_max_height (view->page_cache,
2710 compute_border (view, doc_width, doc_height, &border);
2712 doc_width = doc_width * 2;
2713 width -= (2 * (border.left + border.right) + 3 * view->spacing);
2714 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2716 /* FIXME: We really need to calculate the overall height here, not the
2717 * page height. We assume there's always a vertical scrollbar for
2718 * now. We need to fix this. */
2719 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2720 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
2721 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2722 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
2724 g_assert_not_reached ();
2726 ev_view_set_zoom (view, scale, FALSE);
2730 ev_view_zoom_for_size_continuous (EvView *view,
2736 int doc_width, doc_height;
2740 ev_page_cache_get_max_width (view->page_cache,
2744 ev_page_cache_get_max_height (view->page_cache,
2748 compute_border (view, doc_width, doc_height, &border);
2750 width -= (border.left + border.right + 2 * view->spacing);
2751 height -= (border.top + border.bottom + 2 * view->spacing - 1);
2753 /* FIXME: We really need to calculate the overall height here, not the
2754 * page height. We assume there's always a vertical scrollbar for
2755 * now. We need to fix this. */
2756 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2757 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
2758 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2759 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
2761 g_assert_not_reached ();
2763 ev_view_set_zoom (view, scale, FALSE);
2767 ev_view_zoom_for_size_dual_page (EvView *view,
2774 gint doc_width, doc_height;
2778 other_page = view->current_page ^ 1;
2780 /* Find the largest of the two. */
2781 ev_page_cache_get_size (view->page_cache,
2785 &doc_width, &doc_height);
2787 if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
2788 gint width_2, height_2;
2789 ev_page_cache_get_size (view->page_cache,
2793 &width_2, &height_2);
2794 if (width_2 > doc_width)
2795 doc_width = width_2;
2796 if (height_2 > doc_height)
2797 doc_height = height_2;
2799 compute_border (view, doc_width, doc_height, &border);
2801 doc_width = doc_width * 2;
2802 width -= ((border.left + border.right)* 2 + 3 * view->spacing);
2803 height -= (border.top + border.bottom + 2 * view->spacing);
2805 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2806 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
2807 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2808 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
2810 g_assert_not_reached ();
2812 ev_view_set_zoom (view, scale, FALSE);
2816 ev_view_zoom_for_size_single_page (EvView *view,
2822 int doc_width, doc_height;
2826 ev_page_cache_get_size (view->page_cache,
2832 /* Get an approximate border */
2833 compute_border (view, width, height, &border);
2835 width -= (border.left + border.right + 2 * view->spacing);
2836 height -= (border.top + border.bottom + 2 * view->spacing);
2838 if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
2839 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
2840 else if (view->sizing_mode == EV_SIZING_BEST_FIT)
2841 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
2843 g_assert_not_reached ();
2845 ev_view_set_zoom (view, scale, FALSE);
2849 ev_view_set_zoom_for_size (EvView *view,
2855 g_return_if_fail (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
2856 view->sizing_mode == EV_SIZING_BEST_FIT);
2857 g_return_if_fail (width >= 0);
2858 g_return_if_fail (height >= 0);
2860 if (view->document == NULL)
2863 if (view->presentation)
2864 ev_view_zoom_for_size_presentation (view, width, height);
2865 else if (view->continuous && view->dual_page)
2866 ev_view_zoom_for_size_continuous_and_dual_page (view, width, height, vsb_width, hsb_height);
2867 else if (view->continuous)
2868 ev_view_zoom_for_size_continuous (view, width, height, vsb_width, hsb_height);
2869 else if (view->dual_page)
2870 ev_view_zoom_for_size_dual_page (view, width, height, vsb_width, hsb_height);
2872 ev_view_zoom_for_size_single_page (view, width, height, vsb_width, hsb_height);
2875 /*** Status text messages ***/
2878 ev_view_get_status (EvView *view)
2880 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2882 return view->status;
2886 ev_view_set_status (EvView *view, const char *message)
2888 g_return_if_fail (EV_IS_VIEW (view));
2890 if (message != view->status) {
2891 g_free (view->status);
2892 view->status = g_strdup (message);
2893 g_object_notify (G_OBJECT (view), "status");
2898 update_find_status_message (EvView *view)
2902 if (view->current_page == view->find_page) {
2905 results = ev_document_find_get_n_results
2906 (EV_DOCUMENT_FIND (view->document),
2907 view->current_page);
2908 /* TRANS: Sometimes this could be better translated as
2909 "%d hit(s) on this page". Therefore this string
2910 contains plural cases. */
2911 message = g_strdup_printf (ngettext ("%d found on this page",
2912 "%d found on this page",
2918 percent = ev_document_find_get_progress
2919 (EV_DOCUMENT_FIND (view->document));
2920 if (percent >= (1.0 - 1e-10)) {
2921 message = g_strdup (_("Not found"));
2923 message = g_strdup_printf (_("%3d%% remaining to search"),
2924 (int) ((1.0 - percent) * 100));
2928 ev_view_set_find_status (view, message);
2933 ev_view_get_find_status (EvView *view)
2935 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
2937 return view->find_status;
2941 ev_view_set_find_status (EvView *view, const char *message)
2943 g_return_if_fail (EV_IS_VIEW (view));
2945 g_free (view->find_status);
2946 view->find_status = g_strdup (message);
2947 g_object_notify (G_OBJECT (view), "find-status");
2953 jump_to_find_result (EvView *view)
2955 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
2957 GdkRectangle view_rect;
2959 int page = view->find_page;
2961 n_results = ev_document_find_get_n_results (find, page);
2963 if (n_results > 0 && view->find_result < n_results) {
2964 ev_document_find_get_result
2965 (find, page, view->find_result, &rect);
2967 doc_rect_to_view_rect (view, page, &rect, &view_rect);
2968 ensure_rectangle_is_visible (view, &view_rect);
2973 jump_to_find_page (EvView *view, EvViewFindDirection direction)
2977 n_pages = ev_page_cache_get_n_pages (view->page_cache);
2979 for (i = 0; i < n_pages; i++) {
2983 if (direction == EV_VIEW_FIND_NEXT)
2984 page = view->find_page + i;
2986 page = view->find_page - i;
2989 if (page >= n_pages) {
2990 page = page - n_pages;
2993 page = page + n_pages;
2995 has_results = ev_document_find_page_has_results
2996 (EV_DOCUMENT_FIND (view->document), page);
2997 if (has_results == -1) {
2998 view->find_page = page;
3000 } else if (has_results == 1) {
3001 ev_page_cache_set_current_page (view->page_cache, page);
3008 ev_view_can_find_next (EvView *view)
3012 if (EV_IS_DOCUMENT_FIND (view->document)) {
3013 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
3015 n_results = ev_document_find_get_n_results (find, view->current_page);
3018 return n_results > 0;
3022 ev_view_find_next (EvView *view)
3024 int n_results, n_pages;
3025 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
3027 n_results = ev_document_find_get_n_results (find, view->current_page);
3029 n_pages = ev_page_cache_get_n_pages (view->page_cache);
3031 view->find_result++;
3033 if (view->find_result >= n_results) {
3035 view->find_result = 0;
3037 if (view->find_page >= n_pages) {
3038 view->find_page = 0;
3041 jump_to_find_page (view, EV_VIEW_FIND_NEXT);
3042 jump_to_find_result (view);
3044 jump_to_find_result (view);
3045 gtk_widget_queue_draw (GTK_WIDGET (view));
3050 ev_view_find_previous (EvView *view)
3052 int n_results, n_pages;
3053 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
3054 EvPageCache *page_cache;
3056 page_cache = ev_page_cache_get (view->document);
3058 n_results = ev_document_find_get_n_results (find, view->current_page);
3060 n_pages = ev_page_cache_get_n_pages (page_cache);
3062 view->find_result--;
3064 if (view->find_result < 0) {
3067 if (view->find_page < 0) {
3068 view->find_page = n_pages - 1;
3071 jump_to_find_page (view, EV_VIEW_FIND_PREV);
3072 view->find_result = ev_document_find_get_n_results (find, view->current_page) - 1;
3073 jump_to_find_result (view);
3075 jump_to_find_result (view);
3076 gtk_widget_queue_draw (GTK_WIDGET (view));
3080 /*** Selections ***/
3082 /* compute_new_selection_rect/text calculates the area currently selected by
3083 * view_rect. each handles a different mode;
3086 compute_new_selection_rect (EvView *view,
3090 GdkRectangle view_rect;
3094 g_assert (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE);
3096 view_rect.x = MIN (start->x, stop->x);
3097 view_rect.y = MIN (start->y, stop->y);
3098 view_rect.width = MAX (start->x, stop->x) - view_rect.x;
3099 view_rect.width = MAX (start->y, stop->y) - view_rect.y;
3101 n_pages = ev_page_cache_get_n_pages (view->page_cache);
3103 for (i = 0; i < n_pages; i++) {
3104 GdkRectangle page_area;
3107 if (get_page_extents (view, i, &page_area, &border)) {
3108 GdkRectangle overlap;
3110 if (gdk_rectangle_intersect (&page_area, &view_rect, &overlap)) {
3111 EvViewSelection *selection;
3113 selection = g_new0 (EvViewSelection, 1);
3114 selection->page = i;
3115 view_rect_to_doc_rect (view, &overlap, &page_area,
3116 &(selection->rect));
3118 list = g_list_append (list, selection);
3127 gdk_rectangle_point_in (GdkRectangle *rectangle,
3130 return rectangle->x <= point->x &&
3131 rectangle->y <= point->y &&
3132 point->x < rectangle->x + rectangle->width &&
3133 point->y < rectangle->y + rectangle->height;
3137 compute_new_selection_text (EvView *view,
3141 int n_pages, i, first, last;
3143 EvViewSelection *selection;
3145 int start_page, end_page;
3147 g_assert (view->selection_mode == EV_VIEW_SELECTION_TEXT);
3149 n_pages = ev_page_cache_get_n_pages (view->page_cache);
3151 /* First figure out the range of pages the selection
3155 if (view->continuous) {
3158 } else if (view->dual_page) {
3159 start_page = view->start_page;
3160 end_page = view->end_page + 1;
3162 start_page = view->current_page;
3163 end_page = view->current_page + 1;
3166 for (i = start_page; i < end_page; i++) {
3167 GdkRectangle page_area;
3170 get_page_extents (view, i, &page_area, &border);
3171 if (gdk_rectangle_point_in (&page_area, start) ||
3172 gdk_rectangle_point_in (&page_area, stop)) {
3173 if (first == n_pages)
3182 /* Now create a list of EvViewSelection's for the affected
3183 * pages. This could be an empty list, a list of just one
3184 * page or a number of pages.*/
3185 for (i = first; i < last + 1; i++) {
3186 GdkRectangle page_area;
3190 ev_page_cache_get_size (view->page_cache, i,
3192 1.0, &width, &height);
3194 selection = g_new0 (EvViewSelection, 1);
3195 selection->page = i;
3196 selection->rect.x1 = selection->rect.y1 = 0;
3197 selection->rect.x2 = width;
3198 selection->rect.y2 = height;
3200 get_page_extents (view, i, &page_area, &border);
3202 if (gdk_rectangle_point_in (&page_area, start))
3208 view_point_to_doc_point (view, point, &page_area,
3209 &selection->rect.x1,
3210 &selection->rect.y1);
3212 /* If the selection is contained within just one page,
3213 * make sure we don't write 'start' into both points
3214 * in selection->rect. */
3219 view_point_to_doc_point (view, point, &page_area,
3220 &selection->rect.x2,
3221 &selection->rect.y2);
3223 list = g_list_append (list, selection);
3229 /* This function takes the newly calculated list, and figures out which regions
3230 * have changed. It then queues a redraw approporiately.
3233 merge_selection_region (EvView *view,
3237 GList *new_list_ptr, *old_list_ptr;
3239 /* Update the selection */
3240 old_list = ev_pixbuf_cache_get_selection_list (view->pixbuf_cache);
3241 g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
3242 view->selection_info.selections = new_list;
3243 ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, new_list);
3245 new_list_ptr = new_list;
3246 old_list_ptr = old_list;
3248 while (new_list_ptr || old_list_ptr) {
3249 EvViewSelection *old_sel, *new_sel;
3251 GdkRegion *region = NULL;
3253 new_sel = (new_list_ptr) ? (new_list_ptr->data) : NULL;
3254 old_sel = (old_list_ptr) ? (old_list_ptr->data) : NULL;
3256 /* Assume that the lists are in order, and we run through them
3257 * comparing them, one page at a time. We come out with the
3258 * first page we see. */
3259 if (new_sel && old_sel) {
3260 if (new_sel->page < old_sel->page) {
3261 new_list_ptr = new_list_ptr->next;
3263 } else if (new_sel->page > old_sel->page) {
3264 old_list_ptr = old_list_ptr->next;
3267 new_list_ptr = new_list_ptr->next;
3268 old_list_ptr = old_list_ptr->next;
3270 } else if (new_sel) {
3271 new_list_ptr = new_list_ptr->next;
3272 } else if (old_sel) {
3273 old_list_ptr = old_list_ptr->next;
3276 g_assert (new_sel || old_sel);
3278 /* is the page we're looking at on the screen?*/
3279 cur_page = new_sel ? new_sel->page : old_sel->page;
3280 if (cur_page < view->start_page || cur_page > view->end_page)
3283 /* seed the cache with a new page. We are going to need the new
3286 GdkRegion *tmp_region = NULL;
3287 ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache,
3292 new_sel->covered_region = gdk_region_copy (tmp_region);
3296 /* Now we figure out what needs redrawing */
3297 if (old_sel && new_sel) {
3298 if (old_sel->covered_region &&
3299 new_sel->covered_region) {
3300 /* We only want to redraw the areas that have
3301 * changed, so we xor the old and new regions
3302 * and redraw if it's different */
3303 region = gdk_region_copy (old_sel->covered_region);
3304 gdk_region_xor (region, new_sel->covered_region);
3305 if (gdk_region_empty (region)) {
3306 gdk_region_destroy (region);
3309 } else if (old_sel->covered_region) {
3310 region = gdk_region_copy (old_sel->covered_region);
3311 } else if (new_sel->covered_region) {
3312 region = gdk_region_copy (new_sel->covered_region);
3314 } else if (old_sel && !new_sel) {
3315 if (old_sel->covered_region && !gdk_region_empty (old_sel->covered_region)) {
3316 region = gdk_region_copy (old_sel->covered_region);
3318 } else if (!old_sel && new_sel) {
3319 if (new_sel->covered_region && !gdk_region_empty (new_sel->covered_region)) {
3320 region = gdk_region_copy (new_sel->covered_region);
3323 g_assert_not_reached ();
3326 /* Redraw the damaged region! */
3328 GdkRectangle page_area;
3331 get_page_extents (view, cur_page, &page_area, &border);
3332 gdk_region_offset (region,
3333 page_area.x + border.left - view->scroll_x,
3334 page_area.y + border.top - view->scroll_y);
3335 gdk_window_invalidate_region (GTK_WIDGET (view)->window, region, TRUE);
3336 gdk_region_destroy (region);
3340 /* Free the old list, now that we're done with it. */
3341 g_list_foreach (old_list, (GFunc) selection_free, NULL);
3345 compute_selections (EvView *view,
3351 if (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE)
3352 list = compute_new_selection_rect (view, start, stop);
3354 list = compute_new_selection_text (view, start, stop);
3355 merge_selection_region (view, list);
3358 /* Free's the selection. It's up to the caller to queue redraws if needed.
3361 selection_free (EvViewSelection *selection)
3363 if (selection->covered_region)
3364 gdk_region_destroy (selection->covered_region);
3369 clear_selection (EvView *view)
3371 g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
3372 view->selection_info.selections = NULL;
3373 view->selection_info.in_selection = FALSE;
3378 ev_view_select_all (EvView *view)
3382 /* Disable selection on rotated pages for the 0.4.0 series */
3383 if (view->rotation != 0)
3386 clear_selection (view);
3388 n_pages = ev_page_cache_get_n_pages (view->page_cache);
3389 for (i = 0; i < n_pages; i++) {
3391 EvViewSelection *selection;
3393 ev_page_cache_get_size (view->page_cache,
3396 1.0, &width, &height);
3398 selection = g_new0 (EvViewSelection, 1);
3399 selection->page = i;
3400 selection->rect.x1 = selection->rect.y1 = 0;
3401 selection->rect.x2 = width;
3402 selection->rect.y2 = height;
3404 view->selection_info.selections = g_list_append (view->selection_info.selections, selection);
3407 ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, view->selection_info.selections);
3408 gtk_widget_queue_draw (GTK_WIDGET (view));
3412 get_selected_text (EvView *ev_view)
3417 text = g_string_new (NULL);
3419 ev_document_doc_mutex_lock ();
3421 for (l = ev_view->selection_info.selections; l != NULL; l = l->next) {
3422 EvViewSelection *selection = (EvViewSelection *)l->data;
3425 tmp = ev_document_get_text (ev_view->document,
3428 g_string_append (text, tmp);
3432 ev_document_doc_mutex_unlock ();
3434 return g_string_free (text, FALSE);
3438 ev_view_copy (EvView *ev_view)
3440 GtkClipboard *clipboard;
3443 if (!ev_document_can_get_text (ev_view->document)) {
3447 text = get_selected_text (ev_view);
3448 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
3449 GDK_SELECTION_CLIPBOARD);
3450 gtk_clipboard_set_text (clipboard, text, -1);
3455 ev_view_primary_get_cb (GtkClipboard *clipboard,
3456 GtkSelectionData *selection_data,
3460 EvView *ev_view = EV_VIEW (data);
3463 if (!ev_document_can_get_text (ev_view->document)) {
3467 text = get_selected_text (ev_view);
3468 gtk_selection_data_set_text (selection_data, text, -1);
3473 ev_view_primary_clear_cb (GtkClipboard *clipboard,
3476 EvView *view = EV_VIEW (data);
3478 clear_selection (view);
3482 ev_view_update_primary_selection (EvView *ev_view)
3484 GtkClipboard *clipboard;
3486 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
3487 GDK_SELECTION_PRIMARY);
3489 if (ev_view->selection_info.selections) {
3490 if (!gtk_clipboard_set_with_owner (clipboard,
3492 G_N_ELEMENTS (targets),
3493 ev_view_primary_get_cb,
3494 ev_view_primary_clear_cb,
3495 G_OBJECT (ev_view)))
3496 ev_view_primary_clear_cb (clipboard, ev_view);
3498 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
3499 gtk_clipboard_clear (clipboard);
3503 /*** Cursor operations ***/
3506 ev_view_create_invisible_cursor(void)
3509 GdkColor black = { 0, 0, 0, 0 };
3510 static char bits[] = { 0x00 };
3512 empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
3514 return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
3518 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
3520 GdkCursor *cursor = NULL;
3521 GdkDisplay *display;
3524 if (view->cursor == new_cursor) {
3528 widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
3529 display = gtk_widget_get_display (widget);
3530 view->cursor = new_cursor;
3532 switch (new_cursor) {
3533 case EV_VIEW_CURSOR_NORMAL:
3534 gdk_window_set_cursor (widget->window, NULL);
3536 case EV_VIEW_CURSOR_IBEAM:
3537 cursor = gdk_cursor_new_for_display (display, GDK_XTERM);
3539 case EV_VIEW_CURSOR_LINK:
3540 cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
3542 case EV_VIEW_CURSOR_WAIT:
3543 cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
3545 case EV_VIEW_CURSOR_HIDDEN:
3546 cursor = ev_view_create_invisible_cursor ();
3548 case EV_VIEW_CURSOR_DRAG:
3549 cursor = gdk_cursor_new_for_display (display, GDK_FLEUR);
3554 gdk_window_set_cursor (widget->window, cursor);
3555 gdk_cursor_unref (cursor);
3561 ev_view_hide_cursor (EvView *view)
3563 ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
3567 ev_view_show_cursor (EvView *view)
3569 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
3573 ev_view_next_page (EvView *view)
3577 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
3579 page = ev_page_cache_get_current_page (view->page_cache);
3580 page = ev_view_get_dual_page (view) ? page + 2 : page + 1;
3582 if (page < ev_page_cache_get_n_pages (view->page_cache)) {
3583 ev_page_cache_set_current_page (view->page_cache, page);
3591 ev_view_previous_page (EvView *view)
3595 g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
3597 page = ev_page_cache_get_current_page (view->page_cache);
3598 page = ev_view_get_dual_page (view) ? page - 2 : page - 1;
3601 ev_page_cache_set_current_page (view->page_cache, page);
3608 /*** Enum description for usage in signal ***/
3611 ev_sizing_mode_get_type (void)
3613 static GType etype = 0;
3615 static const GEnumValue values[] = {
3616 { EV_SIZING_FIT_WIDTH, "EV_SIZING_FIT_WIDTH", "fit-width" },
3617 { EV_SIZING_BEST_FIT, "EV_SIZING_BEST_FIT", "best-fit" },
3618 { EV_SIZING_FREE, "EV_SIZING_FREE", "free" },
3621 etype = g_enum_register_static ("EvSizingMode", values);