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
80 #define MAX_SCALE 18.4884
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);
214 ev_view_set_scroll_adjustments (view, NULL, NULL);
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 g_mutex_lock (EV_DOC_MUTEX);
542 results = ev_document_find_get_n_results (find, view->current_page);
543 g_mutex_unlock (EV_DOC_MUTEX);
545 for (i = 0; i < results; i++) {
546 EvRectangle rectangle;
547 GdkRectangle view_rectangle;
550 alpha = (i == view->find_result) ? 0x90 : 0x20;
551 g_mutex_lock (EV_DOC_MUTEX);
552 ev_document_find_get_result (find, view->current_page,
554 g_mutex_unlock (EV_DOC_MUTEX);
555 doc_rect_to_view_rect (view, &rectangle, &view_rectangle);
556 draw_rubberband (GTK_WIDGET (view), view->bin_window,
557 &view_rectangle, alpha);
563 expose_bin_window (GtkWidget *widget,
564 GdkEventExpose *event)
566 EvView *view = EV_VIEW (widget);
569 int x_offset, y_offset;
570 GdkPixbuf *scaled_image;
571 GdkPixbuf *current_pixbuf;
573 if (view->document == NULL)
576 ev_view_get_offsets (view, &x_offset, &y_offset);
577 ev_page_cache_get_size (view->page_cache,
582 /* Paint the frame */
585 area.width = width + view->border.left + view->border.right;
586 area.height = height + view->border.top + view->border.bottom;
588 if (view->show_border) {
589 ev_document_misc_paint_one_page (view->bin_window, widget, &area,
593 /* Render the document itself */
594 LOG ("Render area %d %d %d %d - Offset %d %d",
595 event->area.x, event->area.y,
596 event->area.width, event->area.height,
599 current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, view->current_page);
601 if (current_pixbuf == NULL)
603 else if (width == gdk_pixbuf_get_width (current_pixbuf) &&
604 height == gdk_pixbuf_get_height (current_pixbuf))
605 scaled_image = g_object_ref (current_pixbuf);
607 scaled_image = gdk_pixbuf_scale_simple (current_pixbuf,
611 gdk_draw_pixbuf (view->bin_window,
612 GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
615 area.x + view->border.left,
616 area.y + view->border.top,
618 GDK_RGB_DITHER_NORMAL,
620 g_object_unref (scaled_image);
623 if (EV_IS_DOCUMENT_FIND (view->document)) {
624 highlight_find_results (view);
627 if (view->has_selection) {
628 GdkRectangle rubberband;
630 doc_rect_to_view_rect (view, &view->selection, &rubberband);
631 if (rubberband.width > 0 && rubberband.height > 0) {
632 draw_rubberband (widget, view->bin_window,
639 ev_view_expose_event (GtkWidget *widget,
640 GdkEventExpose *event)
642 EvView *view = EV_VIEW (widget);
644 if (event->window == view->bin_window)
645 expose_bin_window (widget, event);
647 return GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event (widget, event);
653 ev_view_select_all (EvView *ev_view)
655 GtkWidget *widget = GTK_WIDGET (ev_view);
656 GdkRectangle selection;
658 int x_offset, y_offset;
660 g_return_if_fail (EV_IS_VIEW (ev_view));
663 ev_view_get_offsets (ev_view, &x_offset, &y_offset);
664 ev_page_cache_get_size (ev_view->page_cache,
665 ev_view->current_page,
669 ev_view->has_selection = TRUE;
670 selection.x = x_offset + ev_view->border.left;
671 selection.y = y_offset + ev_view->border.top;
672 selection.width = width;
673 selection.height = height;
674 view_rect_to_doc_rect (ev_view, &selection, &ev_view->selection);
676 gtk_widget_queue_draw (widget);
680 ev_view_copy (EvView *ev_view)
682 GtkClipboard *clipboard;
685 if (!ev_document_can_get_text (ev_view->document)) {
689 g_mutex_lock (EV_DOC_MUTEX);
690 text = ev_document_get_text (ev_view->document,
691 ev_view->current_page,
692 &ev_view->selection);
693 g_mutex_unlock (EV_DOC_MUTEX);
695 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
696 GDK_SELECTION_CLIPBOARD);
697 gtk_clipboard_set_text (clipboard, text, -1);
702 ev_view_set_show_border (EvView *view, gboolean show_border)
704 g_return_if_fail (EV_IS_VIEW (view));
706 view->show_border = show_border;
708 gtk_widget_queue_resize (GTK_WIDGET (view));
712 ev_view_primary_get_cb (GtkClipboard *clipboard,
713 GtkSelectionData *selection_data,
717 EvView *ev_view = EV_VIEW (data);
720 if (!ev_document_can_get_text (ev_view->document)) {
724 g_mutex_lock (EV_DOC_MUTEX);
725 text = ev_document_get_text (ev_view->document,
726 ev_view->current_page,
727 &ev_view->selection);
728 g_mutex_unlock (EV_DOC_MUTEX);
729 gtk_selection_data_set_text (selection_data, text, -1);
733 ev_view_primary_clear_cb (GtkClipboard *clipboard,
736 EvView *ev_view = EV_VIEW (data);
738 ev_view->has_selection = FALSE;
742 ev_view_update_primary_selection (EvView *ev_view)
744 GtkClipboard *clipboard;
746 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
747 GDK_SELECTION_PRIMARY);
749 if (ev_view->has_selection) {
750 if (!gtk_clipboard_set_with_owner (clipboard,
752 G_N_ELEMENTS (targets),
753 ev_view_primary_get_cb,
754 ev_view_primary_clear_cb,
756 ev_view_primary_clear_cb (clipboard, ev_view);
758 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
759 gtk_clipboard_clear (clipboard);
764 ev_view_button_press_event (GtkWidget *widget,
765 GdkEventButton *event)
767 EvView *view = EV_VIEW (widget);
769 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
770 gtk_widget_grab_focus (widget);
773 view->pressed_button = event->button;
775 switch (event->button) {
777 if (view->has_selection) {
778 view->has_selection = FALSE;
779 gtk_widget_queue_draw (widget);
782 view->selection_start.x = event->x;
783 view->selection_start.y = event->y;
791 status_message_from_link (EvView *view, EvLink *link)
797 type = ev_link_get_link_type (link);
800 case EV_LINK_TYPE_TITLE:
801 if (ev_link_get_title (link))
802 msg = g_strdup (ev_link_get_title (link));
804 case EV_LINK_TYPE_PAGE:
805 page_label = ev_page_cache_get_page_label (view->page_cache, ev_link_get_page (link));
806 msg = g_strdup_printf (_("Go to page %s"), page_label);
809 case EV_LINK_TYPE_EXTERNAL_URI:
810 msg = g_strdup (ev_link_get_uri (link));
820 ev_view_set_status (EvView *view, const char *message)
822 g_return_if_fail (EV_IS_VIEW (view));
824 if (message != view->status) {
825 g_free (view->status);
826 view->status = g_strdup (message);
827 g_object_notify (G_OBJECT (view), "status");
832 ev_view_set_find_status (EvView *view, const char *message)
834 g_return_if_fail (EV_IS_VIEW (view));
836 g_free (view->find_status);
837 view->find_status = g_strdup (message);
838 g_object_notify (G_OBJECT (view), "find-status");
842 ev_view_create_invisible_cursor(void)
845 GdkColor black = { 0, 0, 0, 0 };
846 static char bits[] = { 0x00 };
848 empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
850 return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
854 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
856 GdkCursor *cursor = NULL;
860 if (view->cursor == new_cursor) {
864 widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
865 display = gtk_widget_get_display (widget);
866 view->cursor = new_cursor;
868 switch (new_cursor) {
869 case EV_VIEW_CURSOR_NORMAL:
870 gdk_window_set_cursor (widget->window, NULL);
872 case EV_VIEW_CURSOR_LINK:
873 cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
875 case EV_VIEW_CURSOR_WAIT:
876 cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
878 case EV_VIEW_CURSOR_HIDDEN:
879 cursor = ev_view_create_invisible_cursor ();
885 gdk_window_set_cursor (widget->window, cursor);
886 gdk_cursor_unref (cursor);
893 find_page_at_location (EvView *view,
902 ev_page_cache_get_size (view->page_cache,
907 x -= (view->border.left + view->spacing);
908 y -= (view->border.top + view->spacing);
910 if ((x < 0) || (y < 0) ||
911 (x >= width) || (y >= height)) {
915 *page = view->current_page;
916 *x_offset = (gint) x;
917 *y_offset = (gint) y;
921 get_link_at_location (EvView *view,
926 gint x_offset, y_offset;
929 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
933 link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
935 return ev_link_mapping_find (link_mapping, x_offset /view->scale, y_offset /view->scale);
940 ev_view_motion_notify_event (GtkWidget *widget,
941 GdkEventMotion *event)
943 EvView *view = EV_VIEW (widget);
945 if (view->pressed_button > 0) {
946 GdkRectangle selection;
948 view->has_selection = TRUE;
949 selection.x = MIN (view->selection_start.x, event->x);
950 selection.y = MIN (view->selection_start.y, event->y);
951 selection.width = ABS (view->selection_start.x - event->x) + 1;
952 selection.height = ABS (view->selection_start.y - event->y) + 1;
953 view_rect_to_doc_rect (view, &selection, &view->selection);
955 gtk_widget_queue_draw (widget);
956 } else if (view->document) {
959 link = get_link_at_location (view, event->x, event->y);
963 msg = status_message_from_link (view, link);
964 ev_view_set_status (view, msg);
965 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
968 ev_view_set_status (view, NULL);
969 if (view->cursor == EV_VIEW_CURSOR_LINK) {
970 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
979 ev_view_button_release_event (GtkWidget *widget,
980 GdkEventButton *event)
982 EvView *view = EV_VIEW (widget);
984 view->pressed_button = -1;
986 if (view->has_selection) {
987 ev_view_update_primary_selection (view);
988 } else if (view->document) {
991 link = get_link_at_location (view, event->x, event->y);
993 ev_view_go_to_link (view, link);
1001 on_adjustment_value_changed (GtkAdjustment *adjustment,
1004 view_update_adjustments (view);
1008 set_scroll_adjustment (EvView *view,
1009 GtkOrientation orientation,
1010 GtkAdjustment *adjustment)
1012 GtkAdjustment **to_set;
1014 if (orientation == GTK_ORIENTATION_HORIZONTAL)
1015 to_set = &view->hadjustment;
1017 to_set = &view->vadjustment;
1019 if (*to_set != adjustment) {
1021 g_signal_handlers_disconnect_by_func (*to_set,
1022 (gpointer) on_adjustment_value_changed,
1024 g_object_unref (*to_set);
1027 *to_set = adjustment;
1028 view_set_adjustment_values (view, orientation);
1031 g_object_ref (*to_set);
1032 g_signal_connect (*to_set, "value_changed",
1033 G_CALLBACK (on_adjustment_value_changed), view);
1039 ev_view_set_scroll_adjustments (EvView *view,
1040 GtkAdjustment *hadjustment,
1041 GtkAdjustment *vadjustment)
1043 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
1044 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
1046 view_update_adjustments (view);
1050 add_scroll_binding_keypad (GtkBindingSet *binding_set,
1052 GtkScrollType scroll,
1053 gboolean horizontal)
1055 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
1057 gtk_binding_entry_add_signal (binding_set, keyval, 0,
1059 GTK_TYPE_SCROLL_TYPE, scroll,
1060 G_TYPE_BOOLEAN, horizontal);
1061 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
1063 GTK_TYPE_SCROLL_TYPE, scroll,
1064 G_TYPE_BOOLEAN, horizontal);
1068 add_scroll_binding_shifted (GtkBindingSet *binding_set,
1070 GtkScrollType scroll_normal,
1071 GtkScrollType scroll_shifted,
1072 gboolean horizontal)
1074 gtk_binding_entry_add_signal (binding_set, keyval, 0,
1076 GTK_TYPE_SCROLL_TYPE, scroll_normal,
1077 G_TYPE_BOOLEAN, horizontal);
1078 gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK,
1080 GTK_TYPE_SCROLL_TYPE, scroll_shifted,
1081 G_TYPE_BOOLEAN, horizontal);
1085 ev_view_jump (EvView *view,
1086 GtkScrollType scroll)
1088 GtkAdjustment *adjustment;
1089 double value, increment;
1090 gboolean first_page = FALSE;
1091 gboolean last_page = FALSE;
1093 /* Assign values for increment and vertical adjustment */
1094 adjustment = view->vadjustment;
1095 increment = adjustment->page_size * 0.75;
1096 value = adjustment->value;
1098 /* Assign boolean for first and last page */
1099 if (view->current_page == 0)
1101 if (view->current_page == ev_page_cache_get_n_pages (view->page_cache) - 1)
1105 case EV_SCROLL_PAGE_BACKWARD:
1106 /* Do not jump backwards if at the first page */
1107 if (value == (adjustment->lower) && first_page) {
1109 /* At the top of a page, assign the upper bound limit of previous page */
1110 } else if (value == (adjustment->lower)) {
1111 value = adjustment->upper - adjustment->page_size;
1112 ev_page_cache_set_current_page (view->page_cache, view->current_page - 1);
1113 /* Jump to the top */
1115 value = MAX (value - increment, adjustment->lower);
1118 case EV_SCROLL_PAGE_FORWARD:
1119 /* Do not jump forward if at the last page */
1120 if (value == (adjustment->upper - adjustment->page_size) && last_page) {
1122 /* At the bottom of a page, assign the lower bound limit of next page */
1123 } else if (value == (adjustment->upper - adjustment->page_size)) {
1125 ev_page_cache_set_current_page (view->page_cache, view->current_page + 1);
1126 /* Jump to the bottom */
1128 value = MIN (value + increment, adjustment->upper - adjustment->page_size);
1135 gtk_adjustment_set_value (adjustment, value);
1139 ev_view_scroll_view (EvView *view,
1140 GtkScrollType scroll,
1141 gboolean horizontal)
1143 if (scroll == GTK_SCROLL_PAGE_BACKWARD) {
1144 ev_page_cache_prev_page (view->page_cache);
1145 } else if (scroll == GTK_SCROLL_PAGE_FORWARD) {
1146 ev_page_cache_next_page (view->page_cache);
1147 } else if (scroll == EV_SCROLL_PAGE_BACKWARD || scroll == EV_SCROLL_PAGE_FORWARD) {
1148 ev_view_jump (view, scroll);
1150 GtkAdjustment *adjustment;
1154 adjustment = view->hadjustment;
1156 adjustment = view->vadjustment;
1159 value = adjustment->value;
1162 case GTK_SCROLL_STEP_BACKWARD:
1163 value -= adjustment->step_increment;
1165 case GTK_SCROLL_STEP_FORWARD:
1166 value += adjustment->step_increment;
1172 value = CLAMP (value, adjustment->lower,
1173 adjustment->upper - adjustment->page_size);
1175 gtk_adjustment_set_value (adjustment, value);
1180 ev_view_set_property (GObject *object,
1182 const GValue *value,
1189 case PROP_FIND_STATUS:
1195 ev_view_get_property (GObject *object,
1200 EvView *view = EV_VIEW (object);
1205 g_value_set_string (value, view->status);
1207 case PROP_FIND_STATUS:
1208 g_value_set_string (value, view->status);
1214 ev_view_class_init (EvViewClass *class)
1216 GObjectClass *object_class = G_OBJECT_CLASS (class);
1217 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
1218 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
1219 GtkBindingSet *binding_set;
1221 object_class->finalize = ev_view_finalize;
1222 object_class->set_property = ev_view_set_property;
1223 object_class->get_property = ev_view_get_property;
1225 widget_class->expose_event = ev_view_expose_event;
1226 widget_class->button_press_event = ev_view_button_press_event;
1227 widget_class->motion_notify_event = ev_view_motion_notify_event;
1228 widget_class->button_release_event = ev_view_button_release_event;
1229 widget_class->size_request = ev_view_size_request;
1230 widget_class->size_allocate = ev_view_size_allocate;
1231 widget_class->realize = ev_view_realize;
1232 widget_class->unrealize = ev_view_unrealize;
1233 gtk_object_class->destroy = ev_view_destroy;
1235 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
1236 class->scroll_view = ev_view_scroll_view;
1238 widget_class->set_scroll_adjustments_signal = g_signal_new ("set-scroll-adjustments",
1239 G_OBJECT_CLASS_TYPE (object_class),
1240 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1241 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
1243 ev_marshal_VOID__OBJECT_OBJECT,
1245 GTK_TYPE_ADJUSTMENT,
1246 GTK_TYPE_ADJUSTMENT);
1248 g_signal_new ("scroll_view",
1249 G_TYPE_FROM_CLASS (object_class),
1250 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1251 G_STRUCT_OFFSET (EvViewClass, scroll_view),
1253 ev_marshal_VOID__ENUM_BOOLEAN,
1255 GTK_TYPE_SCROLL_TYPE,
1258 g_object_class_install_property (object_class,
1260 g_param_spec_string ("status",
1262 "The status message",
1266 g_object_class_install_property (object_class,
1268 g_param_spec_string ("find-status",
1269 "Find Status Message",
1270 "The find status message",
1274 binding_set = gtk_binding_set_by_class (class);
1276 add_scroll_binding_keypad (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
1277 add_scroll_binding_keypad (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
1278 add_scroll_binding_keypad (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
1279 add_scroll_binding_keypad (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
1281 add_scroll_binding_keypad (binding_set, GDK_Page_Up, GTK_SCROLL_PAGE_BACKWARD, FALSE);
1282 add_scroll_binding_keypad (binding_set, GDK_Page_Down, GTK_SCROLL_PAGE_FORWARD, FALSE);
1284 add_scroll_binding_shifted (binding_set, GDK_space, EV_SCROLL_PAGE_FORWARD, EV_SCROLL_PAGE_BACKWARD, FALSE);
1285 add_scroll_binding_shifted (binding_set, GDK_BackSpace, EV_SCROLL_PAGE_BACKWARD, EV_SCROLL_PAGE_FORWARD, FALSE);
1289 ev_view_init (EvView *view)
1291 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
1295 view->current_page = 0;
1296 view->pressed_button = -1;
1297 view->cursor = EV_VIEW_CURSOR_NORMAL;
1298 view->show_border = TRUE;
1302 update_find_status_message (EvView *view)
1306 // g_mutex_lock (EV_DOC_MUTEX);
1307 if (view->current_page == view->find_page) {
1310 // g_mutex_lock (EV_DOC_MUTEX);
1311 results = ev_document_find_get_n_results
1312 (EV_DOCUMENT_FIND (view->document),
1313 view->current_page);
1314 // g_mutex_unlock (EV_DOC_MUTEX);
1315 /* TRANS: Sometimes this could be better translated as
1316 "%d hit(s) on this page". Therefore this string
1317 contains plural cases. */
1318 message = g_strdup_printf (ngettext ("%d found on this page",
1319 "%d found on this page",
1325 g_mutex_lock (EV_DOC_MUTEX);
1326 percent = ev_document_find_get_progress
1327 (EV_DOCUMENT_FIND (view->document));
1328 g_mutex_unlock (EV_DOC_MUTEX);
1329 if (percent >= (1.0 - 1e-10)) {
1330 message = g_strdup (_("Not found"));
1332 message = g_strdup_printf (_("%3d%% remaining to search"),
1333 (int) ((1.0 - percent) * 100));
1337 // g_mutex_unlock (EV_DOC_MUTEX);
1339 ev_view_set_find_status (view, message);
1340 // g_free (message);
1346 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
1348 GtkWidget *widget = GTK_WIDGET (view);
1349 GtkAdjustment *adjustment;
1352 adjustment = view->vadjustment;
1354 if (rect->y < adjustment->value) {
1355 value = MAX (adjustment->lower, rect->y - MARGIN);
1356 gtk_adjustment_set_value (view->vadjustment, value);
1357 } else if (rect->y + rect->height >
1358 adjustment->value + widget->allocation.height) {
1359 value = MIN (adjustment->upper, rect->y + rect->height -
1360 widget->allocation.height + MARGIN);
1361 gtk_adjustment_set_value (view->vadjustment, value);
1364 adjustment = view->hadjustment;
1366 if (rect->x < adjustment->value) {
1367 value = MAX (adjustment->lower, rect->x - MARGIN);
1368 gtk_adjustment_set_value (view->hadjustment, value);
1369 } else if (rect->x + rect->height >
1370 adjustment->value + widget->allocation.width) {
1371 value = MIN (adjustment->upper, rect->x + rect->width -
1372 widget->allocation.width + MARGIN);
1373 gtk_adjustment_set_value (view->hadjustment, value);
1378 jump_to_find_result (EvView *view)
1380 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1382 GdkRectangle view_rect;
1385 g_mutex_lock (EV_DOC_MUTEX);
1386 n_results = ev_document_find_get_n_results (find, view->current_page);
1387 g_mutex_unlock (EV_DOC_MUTEX);
1389 if (n_results > view->find_result) {
1390 g_mutex_lock (EV_DOC_MUTEX);
1391 ev_document_find_get_result
1392 (find, view->current_page, view->find_result, &rect);
1393 g_mutex_unlock (EV_DOC_MUTEX);
1395 doc_rect_to_view_rect (view, &rect, &view_rect);
1396 ensure_rectangle_is_visible (view, &view_rect);
1401 jump_to_find_page (EvView *view)
1405 n_pages = ev_page_cache_get_n_pages (view->page_cache);
1407 for (i = 0; i < n_pages; i++) {
1411 page = i + view->find_page;
1412 if (page >= n_pages) {
1413 page = page - n_pages;
1416 // g_mutex_lock (EV_DOC_MUTEX);
1417 has_results = ev_document_find_page_has_results
1418 (EV_DOCUMENT_FIND (view->document), page);
1419 if (has_results == -1) {
1420 view->find_page = page;
1422 } else if (has_results == 1) {
1423 ev_page_cache_set_current_page (view->page_cache, page);
1424 jump_to_find_result (view);
1431 find_changed_cb (EvDocument *document, int page, EvView *view)
1433 jump_to_find_page (view);
1434 jump_to_find_result (view);
1435 update_find_status_message (view);
1437 if (view->current_page == page)
1438 gtk_widget_queue_draw (GTK_WIDGET (view));
1440 /*** Public API ***/
1445 return g_object_new (EV_TYPE_VIEW, NULL);
1449 job_finished_cb (EvPixbufCache *pixbuf_cache,
1452 gtk_widget_queue_draw (GTK_WIDGET (view));
1457 page_changed_cb (EvPageCache *page_cache,
1461 int old_page = view->current_page;
1462 int old_width, old_height;
1463 int new_width, new_height;
1465 if (old_page == new_page)
1468 ev_page_cache_get_size (page_cache,
1471 &old_width, &old_height);
1473 view->current_page = new_page;
1474 view->has_selection = FALSE;
1476 compute_zoom_factor (view);
1478 ev_page_cache_get_size (page_cache,
1481 &new_width, &new_height);
1483 compute_border (view, new_width, new_height, &(view->border));
1485 ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
1490 if (new_width != old_width || new_height != old_height)
1491 gtk_widget_queue_resize (GTK_WIDGET (view));
1493 gtk_widget_queue_draw (GTK_WIDGET (view));
1495 gtk_adjustment_set_value (view->vadjustment,
1496 view->vadjustment->lower);
1498 if (EV_IS_DOCUMENT_FIND (view->document)) {
1499 view->find_page = new_page;
1500 view->find_result = 0;
1501 update_find_status_message (view);
1506 ev_view_set_document (EvView *view,
1507 EvDocument *document)
1509 g_return_if_fail (EV_IS_VIEW (view));
1511 if (document != view->document) {
1512 if (view->document) {
1513 g_signal_handlers_disconnect_by_func (view->document,
1516 g_object_unref (view->document);
1517 view->page_cache = NULL;
1521 view->document = document;
1522 view->find_page = 0;
1523 view->find_result = 0;
1525 if (view->document) {
1526 g_object_ref (view->document);
1527 if (EV_IS_DOCUMENT_FIND (view->document)) {
1528 g_signal_connect (view->document,
1530 G_CALLBACK (find_changed_cb),
1533 view->page_cache = ev_document_get_page_cache (view->document);
1534 g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
1535 view->pixbuf_cache = ev_pixbuf_cache_new (view->document);
1536 g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
1539 gtk_widget_queue_resize (GTK_WIDGET (view));
1544 ev_view_get_page (EvView *view)
1546 return view->current_page;
1550 go_to_link (EvView *view, EvLink *link)
1556 type = ev_link_get_link_type (link);
1559 case EV_LINK_TYPE_TITLE:
1561 case EV_LINK_TYPE_PAGE:
1562 page = ev_link_get_page (link);
1563 ev_page_cache_set_current_page (view->page_cache, page);
1565 case EV_LINK_TYPE_EXTERNAL_URI:
1566 uri = ev_link_get_uri (link);
1567 gnome_vfs_url_show (uri);
1573 ev_view_go_to_link (EvView *view, EvLink *link)
1575 go_to_link (view, link);
1579 ev_view_zoom (EvView *view,
1586 scale = view->scale * factor;
1590 scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
1592 view->scale = scale;
1593 view->width = view->height = -1;
1594 gtk_widget_queue_resize (GTK_WIDGET (view));
1598 ev_view_zoom_in (EvView *view)
1600 ev_view_zoom (view, ZOOM_IN_FACTOR, TRUE);
1604 ev_view_zoom_out (EvView *view)
1606 ev_view_zoom (view, ZOOM_OUT_FACTOR, TRUE);
1610 ev_view_set_size (EvView *view,
1614 if (!view->document) {
1618 if (width != view->width || height != view->height) {
1619 view->width = width;
1620 view->height = height;
1621 gtk_widget_queue_resize (GTK_WIDGET (view));
1626 ev_view_get_status (EvView *view)
1628 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1630 return view->status;
1634 ev_view_get_find_status (EvView *view)
1636 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1638 return view->find_status;
1642 ev_view_can_find_next (EvView *view)
1646 if (EV_IS_DOCUMENT_FIND (view->document)) {
1647 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1649 g_mutex_lock (EV_DOC_MUTEX);
1650 n_results = ev_document_find_get_n_results (find, view->current_page);
1651 g_mutex_unlock (EV_DOC_MUTEX);
1654 return n_results > 0;
1658 ev_view_find_next (EvView *view)
1660 EvPageCache *page_cache;
1661 int n_results, n_pages;
1662 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1664 page_cache = ev_document_get_page_cache (view->document);
1665 g_mutex_lock (EV_DOC_MUTEX);
1666 n_results = ev_document_find_get_n_results (find, view->current_page);
1667 g_mutex_unlock (EV_DOC_MUTEX);
1669 n_pages = ev_page_cache_get_n_pages (page_cache);
1671 view->find_result++;
1673 if (view->find_result >= n_results) {
1674 view->find_result = 0;
1677 if (view->find_page >= n_pages) {
1678 view->find_page = 0;
1681 jump_to_find_page (view);
1683 jump_to_find_result (view);
1684 gtk_widget_queue_draw (GTK_WIDGET (view));
1689 ev_view_find_previous (EvView *view)
1691 int n_results, n_pages;
1692 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1693 EvPageCache *page_cache;
1695 page_cache = ev_document_get_page_cache (view->document);
1697 g_mutex_lock (EV_DOC_MUTEX);
1698 n_results = ev_document_find_get_n_results (find, view->current_page);
1699 g_mutex_unlock (EV_DOC_MUTEX);
1701 n_pages = ev_page_cache_get_n_pages (page_cache);
1703 view->find_result--;
1705 if (view->find_result < 0) {
1706 view->find_result = 0;
1709 if (view->find_page < 0) {
1710 view->find_page = n_pages - 1;
1713 jump_to_find_page (view);
1715 jump_to_find_result (view);
1716 gtk_widget_queue_draw (GTK_WIDGET (view));
1720 ev_view_hide_cursor (EvView *view)
1722 ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
1726 ev_view_show_cursor (EvView *view)
1728 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);