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"
32 #include "ev-document-find.h"
33 #include "ev-document-misc.h"
35 #include "ev-job-queue.h"
36 #include "ev-page-cache.h"
37 #include "ev-pixbuf-cache.h"
39 #define EV_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass))
40 #define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW))
41 #define EV_VIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass))
54 TARGET_TEXT_BUFFER_CONTENTS
58 EV_SCROLL_PAGE_FORWARD,
59 EV_SCROLL_PAGE_BACKWARD
62 static const GtkTargetEntry targets[] = {
63 { "STRING", 0, TARGET_STRING },
64 { "TEXT", 0, TARGET_TEXT },
65 { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
66 { "UTF8_STRING", 0, TARGET_UTF8_STRING },
70 EV_VIEW_CURSOR_NORMAL,
76 #define ZOOM_IN_FACTOR 1.2
77 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
79 #define MIN_SCALE 0.05409
83 GtkWidget parent_instance;
87 GdkWindow *bin_window;
95 gboolean pressed_button;
96 gboolean has_selection;
97 GdkPoint selection_start;
98 EvRectangle selection;
101 GtkAdjustment *hadjustment;
102 GtkAdjustment *vadjustment;
104 EvPageCache *page_cache;
105 EvPixbufCache *pixbuf_cache;
108 EvJobRender *current_job;
118 gboolean show_border;
121 struct _EvViewClass {
122 GtkWidgetClass parent_class;
124 void (*set_scroll_adjustments) (EvView *view,
125 GtkAdjustment *hadjustment,
126 GtkAdjustment *vadjustment);
127 void (*scroll_view) (EvView *view,
128 GtkScrollType scroll,
129 gboolean horizontal);
134 static void ev_view_set_scroll_adjustments (EvView *view,
135 GtkAdjustment *hadjustment,
136 GtkAdjustment *vadjustment);
138 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
140 /*** Helper functions ***/
143 view_update_adjustments (EvView *view)
145 int old_x = view->scroll_x;
146 int old_y = view->scroll_y;
148 if (view->hadjustment)
149 view->scroll_x = view->hadjustment->value;
153 if (view->vadjustment)
154 view->scroll_y = view->vadjustment->value;
158 if (GTK_WIDGET_REALIZED (view) &&
159 (view->scroll_x != old_x || view->scroll_y != old_y)) {
160 gdk_window_move (view->bin_window, - view->scroll_x, - view->scroll_y);
161 gdk_window_process_updates (view->bin_window, TRUE);
166 view_set_adjustment_values (EvView *view,
167 GtkOrientation orientation)
169 GtkWidget *widget = GTK_WIDGET (view);
170 GtkAdjustment *adjustment;
171 gboolean value_changed = FALSE;
175 if (orientation == GTK_ORIENTATION_HORIZONTAL) {
176 requisition = widget->requisition.width;
177 allocation = widget->allocation.width;
178 adjustment = view->hadjustment;
180 requisition = widget->requisition.height;
181 allocation = widget->allocation.height;
182 adjustment = view->vadjustment;
188 adjustment->page_size = allocation;
189 adjustment->step_increment = allocation * 0.1;
190 adjustment->page_increment = allocation * 0.9;
191 adjustment->lower = 0;
192 adjustment->upper = MAX (allocation, requisition);
194 if (adjustment->value > adjustment->upper - adjustment->page_size) {
195 adjustment->value = adjustment->upper - adjustment->page_size;
196 value_changed = TRUE;
199 gtk_adjustment_changed (adjustment);
201 gtk_adjustment_value_changed (adjustment);
204 /*** Virtual function implementations ***/
207 ev_view_finalize (GObject *object)
209 EvView *view = EV_VIEW (object);
213 g_free (view->status);
214 g_free (view->find_status);
216 G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
220 ev_view_destroy (GtkObject *object)
222 EvView *view = EV_VIEW (object);
224 if (view->document) {
225 g_object_unref (view->document);
226 view->document = NULL;
228 if (view->pixbuf_cache) {
229 g_object_unref (view->pixbuf_cache);
230 view->pixbuf_cache = NULL;
232 ev_view_set_scroll_adjustments (view, NULL, NULL);
234 GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
238 ev_view_get_offsets (EvView *view, int *x_offset, int *y_offset)
240 EvDocument *document = view->document;
241 GtkWidget *widget = GTK_WIDGET (view);
242 int width, height, target_width, target_height;
244 g_return_if_fail (EV_IS_DOCUMENT (document));
246 ev_page_cache_get_size (view->page_cache,
251 *x_offset = view->spacing;
252 *y_offset = view->spacing;
253 target_width = width + view->border.left +
254 view->border.right + view->spacing * 2;
255 target_height = height + view->border.top +
256 view->border.bottom + view->spacing * 2;
257 *x_offset += MAX (0, (widget->allocation.width - target_width) / 2);
258 *y_offset += MAX (0, (widget->allocation.height - target_height) / 2);
262 view_rect_to_doc_rect (EvView *view, GdkRectangle *view_rect, EvRectangle *doc_rect)
264 int x_offset, y_offset;
266 ev_view_get_offsets (view, &x_offset, &y_offset);
267 doc_rect->x1 = (double) (view_rect->x - x_offset) / view->scale;
268 doc_rect->y1 = (double) (view_rect->y - y_offset) / view->scale;
269 doc_rect->x2 = doc_rect->x1 + (double) view_rect->width / view->scale;
270 doc_rect->y2 = doc_rect->y1 + (double) view_rect->height / view->scale;
274 doc_rect_to_view_rect (EvView *view, EvRectangle *doc_rect, GdkRectangle *view_rect)
276 int x_offset, y_offset;
278 ev_view_get_offsets (view, &x_offset, &y_offset);
279 view_rect->x = floor (doc_rect->x1 * view->scale) + x_offset;
280 view_rect->y = floor (doc_rect->y1 * view->scale) + y_offset;
281 view_rect->width = ceil (doc_rect->x2 * view->scale) + x_offset - view_rect->x;
282 view_rect->height = ceil (doc_rect->y2 * view->scale) + y_offset - view_rect->y;
286 compute_border (EvView *view, int width, int height, GtkBorder *border)
288 if (view->show_border) {
289 ev_document_misc_get_page_border_size (width, height, border);
299 compute_zoom_factor (EvView *view)
301 int doc_width, doc_height;
302 double scale, scale_w, scale_h;
305 if (view->width <= 0 && view->height <= 0) {
309 doc_width = doc_height = 0;
310 scale = scale_w = scale_h = 1.0;
311 ev_page_cache_get_size (view->page_cache,
317 compute_border (view, doc_width, doc_height, &border);
319 if (doc_width == 0 || doc_height == 0) {
323 if (view->width >= 0) {
326 target_width = view->width - (view->spacing * 2 + view->border.left +
328 scale = scale_w = (double)target_width / doc_width;
331 if (view->height >= 0) {
334 target_height = view->height - (view->spacing * 2 + view->border.top +
335 view->border.bottom);
336 scale = scale_h = (double)target_height / doc_height;
339 if (view->width >= 0 && view->height >= 0) {
340 scale = (scale_w < scale_h) ? scale_w : scale_h;
346 /* Called by size_request to make sure we have appropriate jobs running.
349 ev_view_size_request (GtkWidget *widget,
350 GtkRequisition *requisition)
352 EvView *view = EV_VIEW (widget);
355 if (!GTK_WIDGET_REALIZED (widget))
358 if (!view->document) {
359 requisition->width = 1;
360 requisition->height = 1;
364 compute_zoom_factor (view);
366 ev_page_cache_get_size (view->page_cache,
371 compute_border (view, width, height, &(view->border));
373 ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
378 if (view->width >= 0) {
379 requisition->width = 0;
381 requisition->width = width + view->border.left +
382 view->border.right + view->spacing * 2;
385 if (view->height >= 0) {
386 requisition->height = 0;
388 requisition->height = height + view->border.top +
389 view->border.bottom + view->spacing * 2;
394 ev_view_size_allocate (GtkWidget *widget,
395 GtkAllocation *allocation)
397 EvView *view = EV_VIEW (widget);
399 GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
401 view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
402 view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
404 if (GTK_WIDGET_REALIZED (widget)) {
405 gdk_window_resize (view->bin_window,
406 MAX (widget->allocation.width, widget->requisition.width),
407 MAX (widget->allocation.height, widget->requisition.height));
412 ev_view_realize (GtkWidget *widget)
414 EvView *view = EV_VIEW (widget);
415 GdkWindowAttr attributes;
417 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
420 attributes.window_type = GDK_WINDOW_CHILD;
421 attributes.wclass = GDK_INPUT_OUTPUT;
422 attributes.visual = gtk_widget_get_visual (widget);
423 attributes.colormap = gtk_widget_get_colormap (widget);
425 attributes.x = widget->allocation.x;
426 attributes.y = widget->allocation.y;
427 attributes.width = widget->allocation.width;
428 attributes.height = widget->allocation.height;
429 attributes.event_mask = 0;
431 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
433 GDK_WA_X | GDK_WA_Y |
436 gdk_window_set_user_data (widget->window, widget);
437 widget->style = gtk_style_attach (widget->style, widget->window);
438 gdk_window_set_background (widget->window, &widget->style->mid[widget->state]);
442 attributes.width = MAX (widget->allocation.width, widget->requisition.width);
443 attributes.height = MAX (widget->allocation.height, widget->requisition.height);
444 attributes.event_mask = GDK_EXPOSURE_MASK |
445 GDK_BUTTON_PRESS_MASK |
446 GDK_BUTTON_RELEASE_MASK |
449 GDK_POINTER_MOTION_MASK |
450 GDK_LEAVE_NOTIFY_MASK;
452 view->bin_window = gdk_window_new (widget->window,
454 GDK_WA_X | GDK_WA_Y |
457 gdk_window_set_user_data (view->bin_window, widget);
458 gdk_window_show (view->bin_window);
460 widget->style = gtk_style_attach (widget->style, view->bin_window);
461 gdk_window_set_background (view->bin_window, &widget->style->mid[widget->state]);
463 if (view->document) {
464 /* We can't get page size without a target, so we have to
465 * queue a size request at realization. Could be fixed
466 * with EvDocument changes to allow setting a GdkScreen
467 * without setting a target.
469 gtk_widget_queue_resize (widget);
474 ev_view_unrealize (GtkWidget *widget)
476 EvView *view = EV_VIEW (widget);
478 gdk_window_set_user_data (view->bin_window, NULL);
479 gdk_window_destroy (view->bin_window);
480 view->bin_window = NULL;
482 GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
486 ev_gdk_color_to_rgb (const GdkColor *color)
489 result = (0xff0000 | (color->red & 0xff00));
491 result |= ((color->green & 0xff00) | (color->blue >> 8));
496 draw_rubberband (GtkWidget *widget, GdkWindow *window,
497 const GdkRectangle *rect, guchar alpha)
501 GdkColor *fill_color_gdk;
504 fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
505 fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
507 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
508 rect->width, rect->height);
509 gdk_pixbuf_fill (pixbuf, fill_color);
511 gdk_draw_pixbuf (window, NULL, pixbuf,
514 rect->width, rect->height,
518 g_object_unref (pixbuf);
520 gc = gdk_gc_new (window);
521 gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
522 gdk_draw_rectangle (window, gc, FALSE,
528 gdk_color_free (fill_color_gdk);
532 highlight_find_results (EvView *view)
534 EvDocumentFind *find;
537 g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document));
539 find = EV_DOCUMENT_FIND (view->document);
541 results = ev_document_find_get_n_results (find, view->current_page);
543 for (i = 0; i < results; i++) {
544 EvRectangle rectangle;
545 GdkRectangle view_rectangle;
548 alpha = (i == view->find_result) ? 0x90 : 0x20;
549 ev_document_find_get_result (find, view->current_page,
551 doc_rect_to_view_rect (view, &rectangle, &view_rectangle);
552 draw_rubberband (GTK_WIDGET (view), view->bin_window,
553 &view_rectangle, alpha);
559 expose_bin_window (GtkWidget *widget,
560 GdkEventExpose *event)
562 EvView *view = EV_VIEW (widget);
565 int x_offset, y_offset;
566 GdkPixbuf *scaled_image;
567 GdkPixbuf *current_pixbuf;
569 if (view->document == NULL)
572 ev_view_get_offsets (view, &x_offset, &y_offset);
573 ev_page_cache_get_size (view->page_cache,
578 /* Paint the frame */
581 area.width = width + view->border.left + view->border.right;
582 area.height = height + view->border.top + view->border.bottom;
584 if (view->show_border) {
585 ev_document_misc_paint_one_page (view->bin_window, widget, &area,
589 /* Render the document itself */
590 LOG ("Render area %d %d %d %d - Offset %d %d",
591 event->area.x, event->area.y,
592 event->area.width, event->area.height,
595 current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, view->current_page);
597 if (current_pixbuf == NULL)
599 else if (width == gdk_pixbuf_get_width (current_pixbuf) &&
600 height == gdk_pixbuf_get_height (current_pixbuf))
601 scaled_image = g_object_ref (current_pixbuf);
603 scaled_image = gdk_pixbuf_scale_simple (current_pixbuf,
607 gdk_draw_pixbuf (view->bin_window,
608 GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
611 area.x + view->border.left,
612 area.y + view->border.top,
614 GDK_RGB_DITHER_NORMAL,
616 g_object_unref (scaled_image);
619 if (EV_IS_DOCUMENT_FIND (view->document)) {
620 highlight_find_results (view);
623 if (view->has_selection) {
624 GdkRectangle rubberband;
626 doc_rect_to_view_rect (view, &view->selection, &rubberband);
627 if (rubberband.width > 0 && rubberband.height > 0) {
628 draw_rubberband (widget, view->bin_window,
635 ev_view_expose_event (GtkWidget *widget,
636 GdkEventExpose *event)
638 EvView *view = EV_VIEW (widget);
640 if (event->window == view->bin_window)
641 expose_bin_window (widget, event);
643 return GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event (widget, event);
649 ev_view_select_all (EvView *ev_view)
651 GtkWidget *widget = GTK_WIDGET (ev_view);
652 GdkRectangle selection;
654 int x_offset, y_offset;
656 g_return_if_fail (EV_IS_VIEW (ev_view));
659 ev_view_get_offsets (ev_view, &x_offset, &y_offset);
660 ev_page_cache_get_size (ev_view->page_cache,
661 ev_view->current_page,
665 ev_view->has_selection = TRUE;
666 selection.x = x_offset + ev_view->border.left;
667 selection.y = y_offset + ev_view->border.top;
668 selection.width = width;
669 selection.height = height;
670 view_rect_to_doc_rect (ev_view, &selection, &ev_view->selection);
672 gtk_widget_queue_draw (widget);
676 ev_view_copy (EvView *ev_view)
678 GtkClipboard *clipboard;
681 if (!ev_document_can_get_text (ev_view->document)) {
685 ev_document_doc_mutex_lock ();
686 text = ev_document_get_text (ev_view->document,
687 ev_view->current_page,
688 &ev_view->selection);
689 ev_document_doc_mutex_unlock ();
691 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
692 GDK_SELECTION_CLIPBOARD);
693 gtk_clipboard_set_text (clipboard, text, -1);
698 ev_view_set_show_border (EvView *view, gboolean show_border)
700 g_return_if_fail (EV_IS_VIEW (view));
702 view->show_border = show_border;
704 gtk_widget_queue_resize (GTK_WIDGET (view));
708 ev_view_primary_get_cb (GtkClipboard *clipboard,
709 GtkSelectionData *selection_data,
713 EvView *ev_view = EV_VIEW (data);
716 if (!ev_document_can_get_text (ev_view->document)) {
720 ev_document_doc_mutex_lock ();
721 text = ev_document_get_text (ev_view->document,
722 ev_view->current_page,
723 &ev_view->selection);
724 ev_document_doc_mutex_unlock ();
725 gtk_selection_data_set_text (selection_data, text, -1);
729 ev_view_primary_clear_cb (GtkClipboard *clipboard,
732 EvView *ev_view = EV_VIEW (data);
734 ev_view->has_selection = FALSE;
738 ev_view_update_primary_selection (EvView *ev_view)
740 GtkClipboard *clipboard;
742 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
743 GDK_SELECTION_PRIMARY);
745 if (ev_view->has_selection) {
746 if (!gtk_clipboard_set_with_owner (clipboard,
748 G_N_ELEMENTS (targets),
749 ev_view_primary_get_cb,
750 ev_view_primary_clear_cb,
752 ev_view_primary_clear_cb (clipboard, ev_view);
754 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
755 gtk_clipboard_clear (clipboard);
760 ev_view_button_press_event (GtkWidget *widget,
761 GdkEventButton *event)
763 EvView *view = EV_VIEW (widget);
765 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
766 gtk_widget_grab_focus (widget);
769 view->pressed_button = event->button;
771 switch (event->button) {
773 if (view->has_selection) {
774 view->has_selection = FALSE;
775 gtk_widget_queue_draw (widget);
778 view->selection_start.x = event->x;
779 view->selection_start.y = event->y;
787 status_message_from_link (EvView *view, EvLink *link)
793 type = ev_link_get_link_type (link);
796 case EV_LINK_TYPE_TITLE:
797 if (ev_link_get_title (link))
798 msg = g_strdup (ev_link_get_title (link));
800 case EV_LINK_TYPE_PAGE:
801 page_label = ev_page_cache_get_page_label (view->page_cache, ev_link_get_page (link));
802 msg = g_strdup_printf (_("Go to page %s"), page_label);
805 case EV_LINK_TYPE_EXTERNAL_URI:
806 msg = g_strdup (ev_link_get_uri (link));
816 ev_view_set_status (EvView *view, const char *message)
818 g_return_if_fail (EV_IS_VIEW (view));
820 if (message != view->status) {
821 g_free (view->status);
822 view->status = g_strdup (message);
823 g_object_notify (G_OBJECT (view), "status");
828 ev_view_set_find_status (EvView *view, const char *message)
830 g_return_if_fail (EV_IS_VIEW (view));
832 g_free (view->find_status);
833 view->find_status = g_strdup (message);
834 g_object_notify (G_OBJECT (view), "find-status");
838 ev_view_create_invisible_cursor(void)
841 GdkColor black = { 0, 0, 0, 0 };
842 static char bits[] = { 0x00 };
844 empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
846 return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
850 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
852 GdkCursor *cursor = NULL;
856 if (view->cursor == new_cursor) {
860 widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
861 display = gtk_widget_get_display (widget);
862 view->cursor = new_cursor;
864 switch (new_cursor) {
865 case EV_VIEW_CURSOR_NORMAL:
866 gdk_window_set_cursor (widget->window, NULL);
868 case EV_VIEW_CURSOR_LINK:
869 cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
871 case EV_VIEW_CURSOR_WAIT:
872 cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
874 case EV_VIEW_CURSOR_HIDDEN:
875 cursor = ev_view_create_invisible_cursor ();
881 gdk_window_set_cursor (widget->window, cursor);
882 gdk_cursor_unref (cursor);
889 find_page_at_location (EvView *view,
898 ev_page_cache_get_size (view->page_cache,
903 x -= (view->border.left + view->spacing);
904 y -= (view->border.top + view->spacing);
906 if ((x < 0) || (y < 0) ||
907 (x >= width) || (y >= height)) {
911 *page = view->current_page;
912 *x_offset = (gint) x;
913 *y_offset = (gint) y;
917 get_link_at_location (EvView *view,
922 gint x_offset, y_offset;
925 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
929 link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
931 return ev_link_mapping_find (link_mapping, x_offset /view->scale, y_offset /view->scale);
936 ev_view_motion_notify_event (GtkWidget *widget,
937 GdkEventMotion *event)
939 EvView *view = EV_VIEW (widget);
941 if (view->pressed_button > 0) {
942 GdkRectangle selection;
944 view->has_selection = TRUE;
945 selection.x = MIN (view->selection_start.x, event->x);
946 selection.y = MIN (view->selection_start.y, event->y);
947 selection.width = ABS (view->selection_start.x - event->x) + 1;
948 selection.height = ABS (view->selection_start.y - event->y) + 1;
949 view_rect_to_doc_rect (view, &selection, &view->selection);
951 gtk_widget_queue_draw (widget);
952 } else if (view->document) {
955 link = get_link_at_location (view, event->x, event->y);
959 msg = status_message_from_link (view, link);
960 ev_view_set_status (view, msg);
961 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
964 ev_view_set_status (view, NULL);
965 if (view->cursor == EV_VIEW_CURSOR_LINK) {
966 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
974 /* FIXME: standardize this sometime */
976 go_to_link (EvView *view, EvLink *link)
982 type = ev_link_get_link_type (link);
985 case EV_LINK_TYPE_TITLE:
987 case EV_LINK_TYPE_PAGE:
988 page = ev_link_get_page (link);
989 ev_page_cache_set_current_page (view->page_cache, page);
991 case EV_LINK_TYPE_EXTERNAL_URI:
992 uri = ev_link_get_uri (link);
993 gnome_vfs_url_show (uri);
1000 ev_view_button_release_event (GtkWidget *widget,
1001 GdkEventButton *event)
1003 EvView *view = EV_VIEW (widget);
1005 view->pressed_button = -1;
1007 if (view->has_selection) {
1008 ev_view_update_primary_selection (view);
1009 } else if (view->document) {
1012 link = get_link_at_location (view, event->x, event->y);
1014 go_to_link (view, link);
1022 on_adjustment_value_changed (GtkAdjustment *adjustment,
1025 view_update_adjustments (view);
1029 set_scroll_adjustment (EvView *view,
1030 GtkOrientation orientation,
1031 GtkAdjustment *adjustment)
1033 GtkAdjustment **to_set;
1035 if (orientation == GTK_ORIENTATION_HORIZONTAL)
1036 to_set = &view->hadjustment;
1038 to_set = &view->vadjustment;
1040 if (*to_set != adjustment) {
1042 g_signal_handlers_disconnect_by_func (*to_set,
1043 (gpointer) on_adjustment_value_changed,
1045 g_object_unref (*to_set);
1048 *to_set = adjustment;
1049 view_set_adjustment_values (view, orientation);
1052 g_object_ref (*to_set);
1053 g_signal_connect (*to_set, "value_changed",
1054 G_CALLBACK (on_adjustment_value_changed), view);
1060 ev_view_set_scroll_adjustments (EvView *view,
1061 GtkAdjustment *hadjustment,
1062 GtkAdjustment *vadjustment)
1064 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
1065 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
1067 view_update_adjustments (view);
1071 add_scroll_binding_keypad (GtkBindingSet *binding_set,
1073 GtkScrollType scroll,
1074 gboolean horizontal)
1076 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
1078 gtk_binding_entry_add_signal (binding_set, keyval, 0,
1080 GTK_TYPE_SCROLL_TYPE, scroll,
1081 G_TYPE_BOOLEAN, horizontal);
1082 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
1084 GTK_TYPE_SCROLL_TYPE, scroll,
1085 G_TYPE_BOOLEAN, horizontal);
1089 add_scroll_binding_shifted (GtkBindingSet *binding_set,
1091 GtkScrollType scroll_normal,
1092 GtkScrollType scroll_shifted,
1093 gboolean horizontal)
1095 gtk_binding_entry_add_signal (binding_set, keyval, 0,
1097 GTK_TYPE_SCROLL_TYPE, scroll_normal,
1098 G_TYPE_BOOLEAN, horizontal);
1099 gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK,
1101 GTK_TYPE_SCROLL_TYPE, scroll_shifted,
1102 G_TYPE_BOOLEAN, horizontal);
1106 ev_view_jump (EvView *view,
1107 GtkScrollType scroll)
1109 GtkAdjustment *adjustment;
1110 double value, increment;
1111 gboolean first_page = FALSE;
1112 gboolean last_page = FALSE;
1114 /* Assign values for increment and vertical adjustment */
1115 adjustment = view->vadjustment;
1116 increment = adjustment->page_size * 0.75;
1117 value = adjustment->value;
1119 /* Assign boolean for first and last page */
1120 if (view->current_page == 0)
1122 if (view->current_page == ev_page_cache_get_n_pages (view->page_cache) - 1)
1126 case EV_SCROLL_PAGE_BACKWARD:
1127 /* Do not jump backwards if at the first page */
1128 if (value == (adjustment->lower) && first_page) {
1130 /* At the top of a page, assign the upper bound limit of previous page */
1131 } else if (value == (adjustment->lower)) {
1132 value = adjustment->upper - adjustment->page_size;
1133 ev_page_cache_set_current_page (view->page_cache, view->current_page - 1);
1134 /* Jump to the top */
1136 value = MAX (value - increment, adjustment->lower);
1139 case EV_SCROLL_PAGE_FORWARD:
1140 /* Do not jump forward if at the last page */
1141 if (value == (adjustment->upper - adjustment->page_size) && last_page) {
1143 /* At the bottom of a page, assign the lower bound limit of next page */
1144 } else if (value == (adjustment->upper - adjustment->page_size)) {
1146 ev_page_cache_set_current_page (view->page_cache, view->current_page + 1);
1147 /* Jump to the bottom */
1149 value = MIN (value + increment, adjustment->upper - adjustment->page_size);
1156 gtk_adjustment_set_value (adjustment, value);
1160 ev_view_scroll_view (EvView *view,
1161 GtkScrollType scroll,
1162 gboolean horizontal)
1164 if (scroll == GTK_SCROLL_PAGE_BACKWARD) {
1165 ev_page_cache_prev_page (view->page_cache);
1166 } else if (scroll == GTK_SCROLL_PAGE_FORWARD) {
1167 ev_page_cache_next_page (view->page_cache);
1168 } else if (scroll == EV_SCROLL_PAGE_BACKWARD || scroll == EV_SCROLL_PAGE_FORWARD) {
1169 ev_view_jump (view, scroll);
1171 GtkAdjustment *adjustment;
1175 adjustment = view->hadjustment;
1177 adjustment = view->vadjustment;
1180 value = adjustment->value;
1183 case GTK_SCROLL_STEP_BACKWARD:
1184 value -= adjustment->step_increment;
1186 case GTK_SCROLL_STEP_FORWARD:
1187 value += adjustment->step_increment;
1193 value = CLAMP (value, adjustment->lower,
1194 adjustment->upper - adjustment->page_size);
1196 gtk_adjustment_set_value (adjustment, value);
1201 ev_view_set_property (GObject *object,
1203 const GValue *value,
1210 case PROP_FIND_STATUS:
1216 ev_view_get_property (GObject *object,
1221 EvView *view = EV_VIEW (object);
1226 g_value_set_string (value, view->status);
1228 case PROP_FIND_STATUS:
1229 g_value_set_string (value, view->status);
1235 ev_view_class_init (EvViewClass *class)
1237 GObjectClass *object_class = G_OBJECT_CLASS (class);
1238 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
1239 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
1240 GtkBindingSet *binding_set;
1242 object_class->finalize = ev_view_finalize;
1243 object_class->set_property = ev_view_set_property;
1244 object_class->get_property = ev_view_get_property;
1246 widget_class->expose_event = ev_view_expose_event;
1247 widget_class->button_press_event = ev_view_button_press_event;
1248 widget_class->motion_notify_event = ev_view_motion_notify_event;
1249 widget_class->button_release_event = ev_view_button_release_event;
1250 widget_class->size_request = ev_view_size_request;
1251 widget_class->size_allocate = ev_view_size_allocate;
1252 widget_class->realize = ev_view_realize;
1253 widget_class->unrealize = ev_view_unrealize;
1254 gtk_object_class->destroy = ev_view_destroy;
1256 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
1257 class->scroll_view = ev_view_scroll_view;
1259 widget_class->set_scroll_adjustments_signal = g_signal_new ("set-scroll-adjustments",
1260 G_OBJECT_CLASS_TYPE (object_class),
1261 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1262 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
1264 ev_marshal_VOID__OBJECT_OBJECT,
1266 GTK_TYPE_ADJUSTMENT,
1267 GTK_TYPE_ADJUSTMENT);
1269 g_signal_new ("scroll_view",
1270 G_TYPE_FROM_CLASS (object_class),
1271 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1272 G_STRUCT_OFFSET (EvViewClass, scroll_view),
1274 ev_marshal_VOID__ENUM_BOOLEAN,
1276 GTK_TYPE_SCROLL_TYPE,
1279 g_object_class_install_property (object_class,
1281 g_param_spec_string ("status",
1283 "The status message",
1287 g_object_class_install_property (object_class,
1289 g_param_spec_string ("find-status",
1290 "Find Status Message",
1291 "The find status message",
1295 binding_set = gtk_binding_set_by_class (class);
1297 add_scroll_binding_keypad (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
1298 add_scroll_binding_keypad (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
1299 add_scroll_binding_keypad (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
1300 add_scroll_binding_keypad (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
1302 add_scroll_binding_keypad (binding_set, GDK_Page_Up, GTK_SCROLL_PAGE_BACKWARD, FALSE);
1303 add_scroll_binding_keypad (binding_set, GDK_Page_Down, GTK_SCROLL_PAGE_FORWARD, FALSE);
1305 add_scroll_binding_shifted (binding_set, GDK_space, EV_SCROLL_PAGE_FORWARD, EV_SCROLL_PAGE_BACKWARD, FALSE);
1306 add_scroll_binding_shifted (binding_set, GDK_BackSpace, EV_SCROLL_PAGE_BACKWARD, EV_SCROLL_PAGE_FORWARD, FALSE);
1310 ev_view_set_spacing (EvView *view,
1313 g_return_if_fail (EV_IS_VIEW (view));
1315 view->spacing = spacing;
1317 if (view->document) {
1318 gtk_widget_queue_resize (GTK_WIDGET (view));
1323 ev_view_init (EvView *view)
1325 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
1329 view->current_page = 0;
1330 view->pressed_button = -1;
1331 view->cursor = EV_VIEW_CURSOR_NORMAL;
1332 view->show_border = TRUE;
1336 update_find_status_message (EvView *view)
1340 // ev_document_doc_mutex_lock ();
1341 if (view->current_page == view->find_page) {
1344 // ev_document_doc_mutex_lock ();
1345 results = ev_document_find_get_n_results
1346 (EV_DOCUMENT_FIND (view->document),
1347 view->current_page);
1348 // ev_document_doc_mutex_unlock ();
1349 /* TRANS: Sometimes this could be better translated as
1350 "%d hit(s) on this page". Therefore this string
1351 contains plural cases. */
1352 message = g_strdup_printf (ngettext ("%d found on this page",
1353 "%d found on this page",
1359 ev_document_doc_mutex_lock ();
1360 percent = ev_document_find_get_progress
1361 (EV_DOCUMENT_FIND (view->document));
1362 ev_document_doc_mutex_unlock ();
1363 if (percent >= (1.0 - 1e-10)) {
1364 message = g_strdup (_("Not found"));
1366 message = g_strdup_printf (_("%3d%% remaining to search"),
1367 (int) ((1.0 - percent) * 100));
1371 // ev_document_doc_mutex_unlock ();
1373 ev_view_set_find_status (view, message);
1374 // g_free (message);
1380 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
1382 GtkWidget *widget = GTK_WIDGET (view);
1383 GtkAdjustment *adjustment;
1386 adjustment = view->vadjustment;
1388 if (rect->y < adjustment->value) {
1389 value = MAX (adjustment->lower, rect->y - MARGIN);
1390 gtk_adjustment_set_value (view->vadjustment, value);
1391 } else if (rect->y + rect->height >
1392 adjustment->value + widget->allocation.height) {
1393 value = MIN (adjustment->upper, rect->y + rect->height -
1394 widget->allocation.height + MARGIN);
1395 gtk_adjustment_set_value (view->vadjustment, value);
1398 adjustment = view->hadjustment;
1400 if (rect->x < adjustment->value) {
1401 value = MAX (adjustment->lower, rect->x - MARGIN);
1402 gtk_adjustment_set_value (view->hadjustment, value);
1403 } else if (rect->x + rect->height >
1404 adjustment->value + widget->allocation.width) {
1405 value = MIN (adjustment->upper, rect->x + rect->width -
1406 widget->allocation.width + MARGIN);
1407 gtk_adjustment_set_value (view->hadjustment, value);
1412 jump_to_find_result (EvView *view)
1414 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1416 GdkRectangle view_rect;
1419 ev_document_doc_mutex_lock ();
1420 n_results = ev_document_find_get_n_results (find, view->current_page);
1421 ev_document_doc_mutex_unlock ();
1423 if (n_results > view->find_result) {
1424 ev_document_doc_mutex_lock ();
1425 ev_document_find_get_result
1426 (find, view->current_page, view->find_result, &rect);
1427 ev_document_doc_mutex_unlock ();
1429 doc_rect_to_view_rect (view, &rect, &view_rect);
1430 ensure_rectangle_is_visible (view, &view_rect);
1435 jump_to_find_page (EvView *view)
1439 n_pages = ev_page_cache_get_n_pages (view->page_cache);
1441 for (i = 0; i < n_pages; i++) {
1445 page = i + view->find_page;
1446 if (page >= n_pages) {
1447 page = page - n_pages;
1450 // ev_document_doc_mutex_lock ();
1451 has_results = ev_document_find_page_has_results
1452 (EV_DOCUMENT_FIND (view->document), page);
1453 if (has_results == -1) {
1454 view->find_page = page;
1456 } else if (has_results == 1) {
1457 ev_page_cache_set_current_page (view->page_cache, page);
1458 jump_to_find_result (view);
1465 find_changed_cb (EvDocument *document, int page, EvView *view)
1467 jump_to_find_page (view);
1468 jump_to_find_result (view);
1469 update_find_status_message (view);
1471 if (view->current_page == page)
1472 gtk_widget_queue_draw (GTK_WIDGET (view));
1474 /*** Public API ***/
1479 return g_object_new (EV_TYPE_VIEW, NULL);
1483 job_finished_cb (EvPixbufCache *pixbuf_cache,
1486 gtk_widget_queue_draw (GTK_WIDGET (view));
1491 page_changed_cb (EvPageCache *page_cache,
1495 int old_page = view->current_page;
1496 int old_width, old_height;
1497 int new_width, new_height;
1499 if (old_page == new_page)
1502 ev_page_cache_get_size (page_cache,
1505 &old_width, &old_height);
1507 view->current_page = new_page;
1508 view->has_selection = FALSE;
1510 compute_zoom_factor (view);
1512 ev_page_cache_get_size (page_cache,
1515 &new_width, &new_height);
1517 compute_border (view, new_width, new_height, &(view->border));
1519 ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
1524 if (new_width != old_width || new_height != old_height)
1525 gtk_widget_queue_resize (GTK_WIDGET (view));
1527 gtk_widget_queue_draw (GTK_WIDGET (view));
1529 gtk_adjustment_set_value (view->vadjustment,
1530 view->vadjustment->lower);
1532 if (EV_IS_DOCUMENT_FIND (view->document)) {
1533 view->find_page = new_page;
1534 view->find_result = 0;
1535 update_find_status_message (view);
1540 ev_view_set_document (EvView *view,
1541 EvDocument *document)
1543 g_return_if_fail (EV_IS_VIEW (view));
1545 if (document != view->document) {
1546 if (view->document) {
1547 g_signal_handlers_disconnect_by_func (view->document,
1550 g_object_unref (view->document);
1551 view->page_cache = NULL;
1555 view->document = document;
1556 view->find_page = 0;
1557 view->find_result = 0;
1559 if (view->document) {
1560 g_object_ref (view->document);
1561 if (EV_IS_DOCUMENT_FIND (view->document)) {
1562 g_signal_connect (view->document,
1564 G_CALLBACK (find_changed_cb),
1567 view->page_cache = ev_document_get_page_cache (view->document);
1568 g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
1569 view->pixbuf_cache = ev_pixbuf_cache_new (view->document);
1570 g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
1573 gtk_widget_queue_resize (GTK_WIDGET (view));
1578 ev_view_zoom (EvView *view,
1585 scale = view->scale * factor;
1589 scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
1591 view->scale = scale;
1592 view->width = view->height = -1;
1593 gtk_widget_queue_resize (GTK_WIDGET (view));
1597 ev_view_can_zoom_in (EvView *view)
1599 if (view->width != -1 || view->height != -1) {
1603 return view->scale * ZOOM_IN_FACTOR <= MAX_SCALE;
1607 ev_view_can_zoom_out (EvView *view)
1609 if (view->width != -1 || view->height != -1) {
1613 return view->scale * ZOOM_OUT_FACTOR >= MIN_SCALE;
1617 ev_view_zoom_in (EvView *view)
1619 ev_view_zoom (view, ZOOM_IN_FACTOR, TRUE);
1623 ev_view_zoom_out (EvView *view)
1625 ev_view_zoom (view, ZOOM_OUT_FACTOR, TRUE);
1629 ev_view_zoom_normal (EvView *view)
1631 ev_view_zoom (view, 1.0, FALSE);
1635 ev_view_set_size (EvView *view,
1639 if (!view->document) {
1643 if (width != view->width || height != view->height) {
1644 view->width = width;
1645 view->height = height;
1646 gtk_widget_queue_resize (GTK_WIDGET (view));
1651 ev_view_get_status (EvView *view)
1653 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1655 return view->status;
1659 ev_view_get_find_status (EvView *view)
1661 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1663 return view->find_status;
1667 ev_view_can_find_next (EvView *view)
1671 if (EV_IS_DOCUMENT_FIND (view->document)) {
1672 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1674 ev_document_doc_mutex_lock ();
1675 n_results = ev_document_find_get_n_results (find, view->current_page);
1676 ev_document_doc_mutex_unlock ();
1679 return n_results > 0;
1683 ev_view_find_next (EvView *view)
1685 EvPageCache *page_cache;
1686 int n_results, n_pages;
1687 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1689 page_cache = ev_document_get_page_cache (view->document);
1690 ev_document_doc_mutex_lock ();
1691 n_results = ev_document_find_get_n_results (find, view->current_page);
1692 ev_document_doc_mutex_unlock ();
1694 n_pages = ev_page_cache_get_n_pages (page_cache);
1696 view->find_result++;
1698 if (view->find_result >= n_results) {
1699 view->find_result = 0;
1702 if (view->find_page >= n_pages) {
1703 view->find_page = 0;
1706 jump_to_find_page (view);
1708 jump_to_find_result (view);
1709 gtk_widget_queue_draw (GTK_WIDGET (view));
1714 ev_view_find_previous (EvView *view)
1716 int n_results, n_pages;
1717 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1718 EvPageCache *page_cache;
1720 page_cache = ev_document_get_page_cache (view->document);
1722 ev_document_doc_mutex_lock ();
1723 n_results = ev_document_find_get_n_results (find, view->current_page);
1724 ev_document_doc_mutex_unlock ();
1726 n_pages = ev_page_cache_get_n_pages (page_cache);
1728 view->find_result--;
1730 if (view->find_result < 0) {
1731 view->find_result = 0;
1734 if (view->find_page < 0) {
1735 view->find_page = n_pages - 1;
1738 jump_to_find_page (view);
1740 jump_to_find_result (view);
1741 gtk_widget_queue_draw (GTK_WIDGET (view));
1745 ev_view_hide_cursor (EvView *view)
1747 ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
1751 ev_view_show_cursor (EvView *view)
1753 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);