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.
21 #include <gtk/gtkalignment.h>
22 #include <glib/gi18n.h>
23 #include <gtk/gtkbindings.h>
24 #include <gtk/gtkselection.h>
25 #include <gtk/gtkclipboard.h>
26 #include <gdk/gdkkeysyms.h>
27 #include <libgnomevfs/gnome-vfs-utils.h>
29 #include "ev-marshal.h"
31 #include "ev-document-find.h"
33 #define EV_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass))
34 #define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW))
35 #define EV_VIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass))
48 TARGET_TEXT_BUFFER_CONTENTS
51 static const GtkTargetEntry targets[] = {
52 { "STRING", 0, TARGET_STRING },
53 { "TEXT", 0, TARGET_TEXT },
54 { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
55 { "UTF8_STRING", 0, TARGET_UTF8_STRING },
59 EV_VIEW_CURSOR_NORMAL,
65 GtkWidget parent_instance;
69 GdkWindow *bin_window;
77 gboolean pressed_button;
78 gboolean has_selection;
79 GdkPoint selection_start;
80 GdkRectangle selection;
83 GtkAdjustment *hadjustment;
84 GtkAdjustment *vadjustment;
93 GtkWidgetClass parent_class;
95 void (*set_scroll_adjustments) (EvView *view,
96 GtkAdjustment *hadjustment,
97 GtkAdjustment *vadjustment);
98 void (*scroll_view) (EvView *view,
100 gboolean horizontal);
102 /* Should this be notify::page? */
103 void (*page_changed) (EvView *view);
106 static guint page_changed_signal = 0;
108 static void ev_view_set_scroll_adjustments (EvView *view,
109 GtkAdjustment *hadjustment,
110 GtkAdjustment *vadjustment);
112 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
114 /*** Helper functions ***/
117 view_update_adjustments (EvView *view)
119 int old_x = view->scroll_x;
120 int old_y = view->scroll_y;
122 if (view->hadjustment)
123 view->scroll_x = view->hadjustment->value;
127 if (view->vadjustment)
128 view->scroll_y = view->vadjustment->value;
132 if (GTK_WIDGET_REALIZED (view) &&
133 (view->scroll_x != old_x || view->scroll_y != old_y)) {
134 gdk_window_move (view->bin_window, - view->scroll_x, - view->scroll_y);
135 gdk_window_process_updates (view->bin_window, TRUE);
140 view_set_adjustment_values (EvView *view,
141 GtkOrientation orientation)
143 GtkWidget *widget = GTK_WIDGET (view);
144 GtkAdjustment *adjustment;
145 gboolean value_changed = FALSE;
149 if (orientation == GTK_ORIENTATION_HORIZONTAL) {
150 requisition = widget->requisition.width;
151 allocation = widget->allocation.width;
152 adjustment = view->hadjustment;
154 requisition = widget->requisition.height;
155 allocation = widget->allocation.height;
156 adjustment = view->vadjustment;
162 adjustment->page_size = allocation;
163 adjustment->step_increment = allocation * 0.1;
164 adjustment->page_increment = allocation * 0.9;
165 adjustment->lower = 0;
166 adjustment->upper = MAX (allocation, requisition);
168 if (adjustment->value > adjustment->upper - adjustment->page_size) {
169 adjustment->value = adjustment->upper - adjustment->page_size;
170 value_changed = TRUE;
173 gtk_adjustment_changed (adjustment);
175 gtk_adjustment_value_changed (adjustment);
178 /*** Virtual function implementations ***/
181 ev_view_finalize (GObject *object)
183 EvView *view = EV_VIEW (object);
186 g_object_unref (view->document);
188 ev_view_set_scroll_adjustments (view, NULL, NULL);
190 G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
194 ev_view_destroy (GtkObject *object)
196 EvView *view = EV_VIEW (object);
198 ev_view_set_scroll_adjustments (view, NULL, NULL);
200 GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
204 ev_view_size_request (GtkWidget *widget,
205 GtkRequisition *requisition)
207 EvView *view = EV_VIEW (widget);
209 if (GTK_WIDGET_REALIZED (widget)) {
210 if (view->document) {
211 ev_document_get_page_size (view->document,
213 &requisition->height);
215 requisition->width = 10;
216 requisition->height = 10;
219 requisition->width += 2;
220 requisition->height += 2;
226 ev_view_size_allocate (GtkWidget *widget,
227 GtkAllocation *allocation)
229 EvView *view = EV_VIEW (widget);
231 GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
233 view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
234 view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
236 if (GTK_WIDGET_REALIZED (widget)) {
237 gdk_window_resize (view->bin_window,
238 MAX (widget->allocation.width, widget->requisition.width),
239 MAX (widget->allocation.height, widget->requisition.height));
244 ev_view_realize (GtkWidget *widget)
246 EvView *view = EV_VIEW (widget);
247 GdkWindowAttr attributes;
249 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
251 attributes.window_type = GDK_WINDOW_CHILD;
252 attributes.wclass = GDK_INPUT_OUTPUT;
253 attributes.visual = gtk_widget_get_visual (widget);
254 attributes.colormap = gtk_widget_get_colormap (widget);
256 attributes.x = widget->allocation.x;
257 attributes.y = widget->allocation.y;
258 attributes.width = widget->allocation.width;
259 attributes.height = widget->allocation.height;
260 attributes.event_mask = 0;
262 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
264 GDK_WA_X | GDK_WA_Y |
267 gdk_window_set_user_data (widget->window, widget);
268 widget->style = gtk_style_attach (widget->style, widget->window);
272 attributes.width = MAX (widget->allocation.width, widget->requisition.width);
273 attributes.height = MAX (widget->allocation.height, widget->requisition.height);
274 attributes.event_mask = GDK_EXPOSURE_MASK |
275 GDK_BUTTON_PRESS_MASK |
276 GDK_BUTTON_RELEASE_MASK |
279 GDK_POINTER_MOTION_MASK;
281 view->bin_window = gdk_window_new (widget->window,
283 GDK_WA_X | GDK_WA_Y |
286 gdk_window_set_user_data (view->bin_window, widget);
287 gdk_window_show (view->bin_window);
289 widget->style = gtk_style_attach (widget->style, view->bin_window);
290 gdk_window_set_background (view->bin_window, &widget->style->mid[widget->state]);
292 if (view->document) {
293 ev_document_set_target (view->document, view->bin_window);
295 /* We can't get page size without a target, so we have to
296 * queue a size request at realization. Could be fixed
297 * with EvDocument changes to allow setting a GdkScreen
298 * without setting a target.
300 gtk_widget_queue_resize (widget);
305 ev_view_unrealize (GtkWidget *widget)
307 EvView *view = EV_VIEW (widget);
310 ev_document_set_target (view->document, NULL);
312 gdk_window_set_user_data (view->bin_window, NULL);
313 gdk_window_destroy (view->bin_window);
314 view->bin_window = NULL;
316 GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
320 ev_gdk_color_to_rgb (const GdkColor *color)
323 result = (0xff0000 | (color->red & 0xff00));
325 result |= ((color->green & 0xff00) | (color->blue >> 8));
330 draw_rubberband (GtkWidget *widget, GdkWindow *window,
331 const GdkRectangle *rect, guchar alpha)
335 GdkColor *fill_color_gdk;
338 fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
339 fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
341 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
342 rect->width, rect->height);
343 gdk_pixbuf_fill (pixbuf, fill_color);
345 gdk_draw_pixbuf (window, NULL, pixbuf,
348 rect->width, rect->height,
352 g_object_unref (pixbuf);
354 gc = gdk_gc_new (window);
355 gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
356 gdk_draw_rectangle (window, gc, FALSE,
362 gdk_color_free (fill_color_gdk);
366 highlight_find_results (EvView *view)
368 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
371 results = ev_document_find_get_n_results (find);
373 for (i = 0; i < results; i++) {
374 GdkRectangle rectangle;
377 alpha = (i == view->find_result) ? 0x90 : 0x20;
378 ev_document_find_get_result (find, i, &rectangle);
379 draw_rubberband (GTK_WIDGET (view), view->bin_window,
385 expose_bin_window (GtkWidget *widget,
386 GdkEventExpose *event)
388 EvView *view = EV_VIEW (widget);
389 int x_offset, y_offset;
391 if (view->document == NULL)
394 x_offset = MAX (0, (widget->allocation.width -
395 widget->requisition.width) / 2);
396 y_offset = MAX (0, (widget->allocation.height -
397 widget->requisition.height) / 2);
398 gdk_draw_rectangle (view->bin_window,
399 widget->style->black_gc,
403 widget->requisition.width - 1,
404 widget->requisition.height - 1);
406 ev_document_set_page_offset (view->document,
410 ev_document_render (view->document,
411 event->area.x, event->area.y,
412 event->area.width, event->area.height);
414 highlight_find_results (view);
416 if (view->has_selection) {
417 draw_rubberband (widget, view->bin_window,
418 &view->selection, 0x40);
423 ev_view_expose_event (GtkWidget *widget,
424 GdkEventExpose *event)
426 EvView *view = EV_VIEW (widget);
428 if (event->window == view->bin_window)
429 expose_bin_window (widget, event);
431 return GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event (widget, event);
437 ev_view_select_all (EvView *ev_view)
439 GtkWidget *widget = GTK_WIDGET (ev_view);
441 g_return_if_fail (EV_IS_VIEW (ev_view));
443 ev_view->has_selection = TRUE;
444 ev_view->selection.x = ev_view->selection.y = 0;
445 ev_view->selection.width = widget->requisition.width;
446 ev_view->selection.height = widget->requisition.height;
448 gtk_widget_queue_draw (widget);
452 ev_view_copy (EvView *ev_view)
454 GtkClipboard *clipboard;
457 text = ev_document_get_text (ev_view->document, &ev_view->selection);
458 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
459 GDK_SELECTION_CLIPBOARD);
460 gtk_clipboard_set_text (clipboard, text, -1);
465 ev_view_primary_get_cb (GtkClipboard *clipboard,
466 GtkSelectionData *selection_data,
470 EvView *ev_view = EV_VIEW (data);
473 text = ev_document_get_text (ev_view->document, &ev_view->selection);
474 gtk_selection_data_set_text (selection_data, text, -1);
478 ev_view_primary_clear_cb (GtkClipboard *clipboard,
481 EvView *ev_view = EV_VIEW (data);
483 ev_view->has_selection = FALSE;
487 ev_view_update_primary_selection (EvView *ev_view)
489 GtkClipboard *clipboard;
491 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
492 GDK_SELECTION_PRIMARY);
494 if (ev_view->has_selection) {
495 if (!gtk_clipboard_set_with_owner (clipboard,
497 G_N_ELEMENTS (targets),
498 ev_view_primary_get_cb,
499 ev_view_primary_clear_cb,
501 ev_view_primary_clear_cb (clipboard, ev_view);
503 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
504 gtk_clipboard_clear (clipboard);
509 ev_view_button_press_event (GtkWidget *widget,
510 GdkEventButton *event)
512 EvView *view = EV_VIEW (widget);
514 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
515 gtk_widget_grab_focus (widget);
518 view->pressed_button = event->button;
520 switch (event->button) {
522 if (view->has_selection) {
523 view->has_selection = FALSE;
524 gtk_widget_queue_draw (widget);
527 view->selection_start.x = event->x;
528 view->selection_start.y = event->y;
536 status_message_from_link (EvLink *link)
542 type = ev_link_get_link_type (link);
545 case EV_LINK_TYPE_TITLE:
546 msg = g_strdup (ev_link_get_title (link));
548 case EV_LINK_TYPE_PAGE:
549 page = ev_link_get_page (link);
550 msg = g_strdup_printf (_("Go to page %d"), page);
552 case EV_LINK_TYPE_EXTERNAL_URI:
553 msg = g_strdup (ev_link_get_uri (link));
563 ev_view_set_status (EvView *view, const char *message)
565 g_return_if_fail (EV_IS_VIEW (view));
567 if (message != view->status) {
568 g_free (view->status);
569 view->status = g_strdup (message);
570 g_object_notify (G_OBJECT (view), "status");
575 ev_view_set_find_status (EvView *view, const char *message)
577 g_return_if_fail (EV_IS_VIEW (view));
579 g_free (view->find_status);
580 view->find_status = g_strdup (message);
581 g_object_notify (G_OBJECT (view), "find-status");
586 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
588 GdkCursor *cursor = NULL;
592 if (view->cursor == new_cursor) {
596 widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
597 display = gtk_widget_get_display (widget);
598 view->cursor = new_cursor;
600 switch (new_cursor) {
601 case EV_VIEW_CURSOR_NORMAL:
602 gdk_window_set_cursor (widget->window, NULL);
604 case EV_VIEW_CURSOR_LINK:
605 cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
607 case EV_VIEW_CURSOR_WAIT:
608 cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
613 gdk_window_set_cursor (widget->window, cursor);
614 gdk_cursor_unref (cursor);
620 ev_view_motion_notify_event (GtkWidget *widget,
621 GdkEventMotion *event)
623 EvView *view = EV_VIEW (widget);
625 if (view->pressed_button > 0) {
626 view->has_selection = TRUE;
627 view->selection.x = MIN (view->selection_start.x, event->x);
628 view->selection.y = MIN (view->selection_start.y, event->y);
629 view->selection.width = ABS (view->selection_start.x - event->x) + 1;
630 view->selection.height = ABS (view->selection_start.y - event->y) + 1;
632 gtk_widget_queue_draw (widget);
633 } else if (view->document) {
636 link = ev_document_get_link (view->document, event->x, event->y);
640 msg = status_message_from_link (link);
641 ev_view_set_status (view, msg);
642 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
645 g_object_unref (link);
647 ev_view_set_status (view, NULL);
648 if (view->cursor == EV_VIEW_CURSOR_LINK) {
649 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
658 ev_view_button_release_event (GtkWidget *widget,
659 GdkEventButton *event)
661 EvView *view = EV_VIEW (widget);
663 view->pressed_button = -1;
665 if (view->has_selection) {
666 ev_view_update_primary_selection (view);
667 } else if (view->document) {
670 link = ev_document_get_link (view->document,
674 ev_view_go_to_link (view, link);
675 g_object_unref (link);
683 on_adjustment_value_changed (GtkAdjustment *adjustment,
686 view_update_adjustments (view);
690 set_scroll_adjustment (EvView *view,
691 GtkOrientation orientation,
692 GtkAdjustment *adjustment)
694 GtkAdjustment **to_set;
696 if (orientation == GTK_ORIENTATION_HORIZONTAL)
697 to_set = &view->hadjustment;
699 to_set = &view->vadjustment;
701 if (*to_set != adjustment) {
703 g_signal_handlers_disconnect_by_func (*to_set,
704 (gpointer) on_adjustment_value_changed,
706 g_object_unref (*to_set);
709 *to_set = adjustment;
710 view_set_adjustment_values (view, orientation);
713 g_object_ref (*to_set);
714 g_signal_connect (*to_set, "value_changed",
715 G_CALLBACK (on_adjustment_value_changed), view);
721 ev_view_set_scroll_adjustments (EvView *view,
722 GtkAdjustment *hadjustment,
723 GtkAdjustment *vadjustment)
725 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
726 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
728 view_update_adjustments (view);
732 add_scroll_binding (GtkBindingSet *binding_set,
734 GtkScrollType scroll,
737 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
739 gtk_binding_entry_add_signal (binding_set, keyval, 0,
741 GTK_TYPE_SCROLL_TYPE, scroll,
742 G_TYPE_BOOLEAN, horizontal);
743 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
745 GTK_TYPE_SCROLL_TYPE, scroll,
746 G_TYPE_BOOLEAN, horizontal);
750 ev_view_scroll_view (EvView *view,
751 GtkScrollType scroll,
754 if (scroll == GTK_SCROLL_PAGE_BACKWARD) {
755 ev_view_set_page (view, ev_view_get_page (view) - 1);
756 } else if (scroll == GTK_SCROLL_PAGE_FORWARD) {
757 ev_view_set_page (view, ev_view_get_page (view) + 1);
759 GtkAdjustment *adjustment;
763 adjustment = view->hadjustment;
765 adjustment = view->vadjustment;
768 value = adjustment->value;
771 case GTK_SCROLL_STEP_BACKWARD:
772 value -= adjustment->step_increment;
774 case GTK_SCROLL_STEP_FORWARD:
775 value += adjustment->step_increment;
781 value = CLAMP (value, adjustment->lower,
782 adjustment->upper - adjustment->page_size);
784 gtk_adjustment_set_value (adjustment, value);
789 ev_view_set_property (GObject *object,
798 case PROP_FIND_STATUS:
804 ev_view_get_property (GObject *object,
809 EvView *view = EV_VIEW (object);
814 g_value_set_string (value, view->status);
816 case PROP_FIND_STATUS:
817 g_value_set_string (value, view->status);
823 ev_view_class_init (EvViewClass *class)
825 GObjectClass *object_class = G_OBJECT_CLASS (class);
826 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
827 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
828 GtkBindingSet *binding_set;
830 object_class->finalize = ev_view_finalize;
831 object_class->set_property = ev_view_set_property;
832 object_class->get_property = ev_view_get_property;
834 widget_class->expose_event = ev_view_expose_event;
835 widget_class->button_press_event = ev_view_button_press_event;
836 widget_class->motion_notify_event = ev_view_motion_notify_event;
837 widget_class->button_release_event = ev_view_button_release_event;
838 widget_class->size_request = ev_view_size_request;
839 widget_class->size_allocate = ev_view_size_allocate;
840 widget_class->realize = ev_view_realize;
841 widget_class->unrealize = ev_view_unrealize;
842 gtk_object_class->destroy = ev_view_destroy;
844 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
845 class->scroll_view = ev_view_scroll_view;
847 widget_class->set_scroll_adjustments_signal = g_signal_new ("set-scroll-adjustments",
848 G_OBJECT_CLASS_TYPE (object_class),
849 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
850 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
852 ev_marshal_VOID__OBJECT_OBJECT,
855 GTK_TYPE_ADJUSTMENT);
856 page_changed_signal = g_signal_new ("page-changed",
857 G_OBJECT_CLASS_TYPE (object_class),
858 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
859 G_STRUCT_OFFSET (EvViewClass, page_changed),
861 ev_marshal_VOID__NONE,
864 g_signal_new ("scroll_view",
865 G_TYPE_FROM_CLASS (object_class),
866 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
867 G_STRUCT_OFFSET (EvViewClass, scroll_view),
869 ev_marshal_VOID__ENUM_BOOLEAN,
871 GTK_TYPE_SCROLL_TYPE,
874 g_object_class_install_property (object_class,
876 g_param_spec_string ("status",
878 "The status message",
882 g_object_class_install_property (object_class,
884 g_param_spec_string ("find-status",
885 "Find Status Message",
886 "The find status message",
890 binding_set = gtk_binding_set_by_class (class);
892 add_scroll_binding (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
893 add_scroll_binding (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
894 add_scroll_binding (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
895 add_scroll_binding (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
897 add_scroll_binding (binding_set, GDK_Page_Up, GTK_SCROLL_PAGE_BACKWARD, FALSE);
898 add_scroll_binding (binding_set, GDK_Page_Down, GTK_SCROLL_PAGE_FORWARD, FALSE);
902 ev_view_init (EvView *view)
904 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
907 view->pressed_button = -1;
908 view->cursor = EV_VIEW_CURSOR_NORMAL;
912 update_find_status_message (EvView *view)
916 if (ev_document_get_page (view->document) == view->find_page) {
919 results = ev_document_find_get_n_results
920 (EV_DOCUMENT_FIND (view->document));
922 message = g_strdup_printf (_("%d found on this page"),
927 percent = ev_document_find_get_progress
928 (EV_DOCUMENT_FIND (view->document));
930 if (percent >= (1.0 - 1e-10)) {
931 message = g_strdup (_("Not found"));
933 message = g_strdup_printf (_("%3d%% remaining to search"),
934 (int) ((1.0 - percent) * 100));
939 ev_view_set_find_status (view, message);
944 set_document_page (EvView *view, int page)
946 if (view->document) {
947 int old_page = ev_document_get_page (view->document);
948 int old_width, old_height;
950 ev_document_get_page_size (view->document,
951 &old_width, &old_height);
953 if (old_page != page) {
954 ev_view_set_cursor (view, EV_VIEW_CURSOR_WAIT);
955 ev_document_set_page (view->document, page);
958 if (old_page != ev_document_get_page (view->document)) {
961 g_signal_emit (view, page_changed_signal, 0);
963 view->has_selection = FALSE;
964 ev_document_get_page_size (view->document,
966 if (width != old_width || height != old_height)
967 gtk_widget_queue_resize (GTK_WIDGET (view));
969 gtk_adjustment_set_value (view->vadjustment,
970 view->vadjustment->lower);
973 view->find_page = page;
974 view->find_result = 0;
975 update_find_status_message (view);
982 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
984 GtkWidget *widget = GTK_WIDGET (view);
985 GtkAdjustment *adjustment;
988 adjustment = view->vadjustment;
990 if (rect->y < adjustment->value) {
991 value = MAX (adjustment->lower, rect->y - MARGIN);
992 gtk_adjustment_set_value (view->vadjustment, value);
993 } else if (rect->y + rect->height >
994 adjustment->value + widget->allocation.height) {
995 value = MIN (adjustment->upper, rect->y + rect->height -
996 widget->allocation.height + MARGIN);
997 gtk_adjustment_set_value (view->vadjustment, value);
1000 adjustment = view->hadjustment;
1002 if (rect->x < adjustment->value) {
1003 value = MAX (adjustment->lower, rect->x - MARGIN);
1004 gtk_adjustment_set_value (view->hadjustment, value);
1005 } else if (rect->x + rect->height >
1006 adjustment->value + widget->allocation.width) {
1007 value = MIN (adjustment->upper, rect->x + rect->width -
1008 widget->allocation.width + MARGIN);
1009 gtk_adjustment_set_value (view->hadjustment, value);
1014 jump_to_find_result (EvView *view)
1018 ev_document_find_get_result (EV_DOCUMENT_FIND (view->document),
1019 view->find_result, &rect);
1020 ensure_rectangle_is_visible (view, &rect);
1024 jump_to_find_page (EvView *view)
1028 n_pages = ev_document_get_n_pages (view->document);
1030 for (i = 0; i <= n_pages; i++) {
1034 page = i + view->find_page;
1035 if (page > n_pages) {
1036 page = page - n_pages;
1039 has_results = ev_document_find_page_has_results
1040 (EV_DOCUMENT_FIND (view->document), page);
1041 if (has_results == -1) {
1042 view->find_page = page;
1044 } else if (has_results == 1) {
1045 set_document_page (view, page);
1046 jump_to_find_result (view);
1053 find_changed_cb (EvDocument *document, int page, EvView *view)
1055 jump_to_find_page (view);
1056 jump_to_find_result (view);
1057 update_find_status_message (view);
1059 if (ev_document_get_page (document) == page) {
1060 gtk_widget_queue_draw (GTK_WIDGET (view));
1065 document_changed_callback (EvDocument *document,
1068 gtk_widget_queue_draw (GTK_WIDGET (view));
1069 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1072 /*** Public API ***/
1077 return g_object_new (EV_TYPE_VIEW, NULL);
1081 ev_view_set_document (EvView *view,
1082 EvDocument *document)
1084 g_return_if_fail (EV_IS_VIEW (view));
1086 if (document != view->document) {
1087 if (view->document) {
1088 g_signal_handlers_disconnect_by_func (view->document,
1091 g_object_unref (view->document);
1094 view->document = document;
1095 view->find_page = 1;
1096 view->find_result = 0;
1098 if (view->document) {
1099 g_object_ref (view->document);
1100 if (EV_IS_DOCUMENT_FIND (view->document))
1101 g_signal_connect (view->document,
1103 G_CALLBACK (find_changed_cb),
1105 g_signal_connect (view->document,
1107 G_CALLBACK (document_changed_callback),
1111 if (GTK_WIDGET_REALIZED (view))
1112 ev_document_set_target (view->document, view->bin_window);
1114 gtk_widget_queue_resize (GTK_WIDGET (view));
1116 g_signal_emit (view, page_changed_signal, 0);
1121 go_to_link (EvView *view, EvLink *link)
1127 type = ev_link_get_link_type (link);
1130 case EV_LINK_TYPE_TITLE:
1132 case EV_LINK_TYPE_PAGE:
1133 page = ev_link_get_page (link);
1134 set_document_page (view, page);
1136 case EV_LINK_TYPE_EXTERNAL_URI:
1137 uri = ev_link_get_uri (link);
1138 gnome_vfs_url_show (uri);
1144 ev_view_go_to_link (EvView *view, EvLink *link)
1146 go_to_link (view, link);
1150 ev_view_set_page (EvView *view,
1153 g_return_if_fail (EV_IS_VIEW (view));
1155 set_document_page (view, page);
1159 ev_view_get_page (EvView *view)
1162 return ev_document_get_page (view->document);
1167 #define ZOOM_IN_FACTOR 1.2
1168 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
1170 #define MIN_SCALE 0.05409
1171 #define MAX_SCALE 18.4884
1174 ev_view_zoom (EvView *view,
1181 scale = view->scale * factor;
1185 view->scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
1187 ev_document_set_scale (view->document, view->scale);
1189 gtk_widget_queue_resize (GTK_WIDGET (view));
1193 ev_view_zoom_in (EvView *view)
1195 ev_view_zoom (view, ZOOM_IN_FACTOR, TRUE);
1199 ev_view_zoom_out (EvView *view)
1201 ev_view_zoom (view, ZOOM_OUT_FACTOR, TRUE);
1205 ev_view_normal_size (EvView *view)
1207 ev_view_zoom (view, 1.0, FALSE);
1211 ev_view_best_fit (EvView *view)
1217 ev_document_get_page_size (view->document, &width, &height);
1220 if (width != 0 && height != 0) {
1221 double scale_w, scale_h;
1223 scale_w = (double)GTK_WIDGET (view)->allocation.width * view->scale / width;
1224 scale_h = (double)GTK_WIDGET (view)->allocation.height * view->scale / height;
1226 scale = (scale_w < scale_h) ? scale_w : scale_h;
1229 ev_view_zoom (view, scale, FALSE);
1233 ev_view_fit_width (EvView *view)
1239 ev_document_get_page_size (view->document, &width, NULL);
1243 scale = (double)GTK_WIDGET (view)->allocation.width * view->scale / width;
1245 ev_view_zoom (view, scale, FALSE);
1249 ev_view_get_status (EvView *view)
1251 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1253 return view->status;
1257 ev_view_get_find_status (EvView *view)
1259 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1261 return view->find_status;
1265 ev_view_find_next (EvView *view)
1267 int n_results, n_pages;
1268 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1270 n_results = ev_document_find_get_n_results (find);
1271 n_pages = ev_document_get_n_pages (view->document);
1273 view->find_result++;
1275 if (view->find_result >= n_results) {
1276 view->find_result = 0;
1279 if (view->find_page > n_pages) {
1280 view->find_page = 1;
1283 jump_to_find_page (view);
1285 jump_to_find_result (view);
1286 gtk_widget_queue_draw (GTK_WIDGET (view));
1291 ev_view_find_previous (EvView *view)
1293 int n_results, n_pages;
1294 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1296 n_results = ev_document_find_get_n_results (find);
1297 n_pages = ev_document_get_n_pages (view->document);
1299 view->find_result--;
1301 if (view->find_result < 0) {
1302 view->find_result = 0;
1305 if (view->find_page < 1) {
1306 view->find_page = n_pages;
1309 jump_to_find_page (view);
1311 jump_to_find_result (view);
1312 gtk_widget_queue_draw (GTK_WIDGET (view));