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;
70 GdkWindow *bin_window;
78 gboolean pressed_button;
79 gboolean has_selection;
80 GdkRectangle selection;
83 GtkAdjustment *hadjustment;
84 GtkAdjustment *vadjustment;
87 int results_on_this_page;
88 int next_page_with_result;
89 double find_percent_complete;
95 GtkWidgetClass parent_class;
97 void (*set_scroll_adjustments) (EvView *view,
98 GtkAdjustment *hadjustment,
99 GtkAdjustment *vadjustment);
100 void (*scroll_view) (EvView *view,
101 GtkScrollType scroll,
102 gboolean horizontal);
104 /* Should this be notify::page? */
105 void (*page_changed) (EvView *view);
108 static guint page_changed_signal = 0;
110 static void ev_view_set_scroll_adjustments (EvView *view,
111 GtkAdjustment *hadjustment,
112 GtkAdjustment *vadjustment);
114 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
116 /*** Helper functions ***/
119 view_update_adjustments (EvView *view)
121 int old_x = view->scroll_x;
122 int old_y = view->scroll_y;
124 if (view->hadjustment)
125 view->scroll_x = view->hadjustment->value;
129 if (view->vadjustment)
130 view->scroll_y = view->vadjustment->value;
134 if (GTK_WIDGET_REALIZED (view) &&
135 (view->scroll_x != old_x || view->scroll_y != old_y)) {
136 gdk_window_move (view->bin_window, - view->scroll_x, - view->scroll_y);
137 gdk_window_process_updates (view->bin_window, TRUE);
142 view_set_adjustment_values (EvView *view,
143 GtkOrientation orientation)
145 GtkWidget *widget = GTK_WIDGET (view);
146 GtkAdjustment *adjustment;
147 gboolean value_changed = FALSE;
151 if (orientation == GTK_ORIENTATION_HORIZONTAL) {
152 requisition = widget->requisition.width;
153 allocation = widget->allocation.width;
154 adjustment = view->hadjustment;
156 requisition = widget->requisition.height;
157 allocation = widget->allocation.height;
158 adjustment = view->vadjustment;
164 adjustment->page_size = allocation;
165 adjustment->step_increment = allocation * 0.1;
166 adjustment->page_increment = allocation * 0.9;
167 adjustment->lower = 0;
168 adjustment->upper = MAX (allocation, requisition);
170 if (adjustment->value > adjustment->upper - adjustment->page_size) {
171 adjustment->value = adjustment->upper - adjustment->page_size;
172 value_changed = TRUE;
175 gtk_adjustment_changed (adjustment);
177 gtk_adjustment_value_changed (adjustment);
180 /*** Virtual function implementations ***/
183 ev_view_finalize (GObject *object)
185 EvView *view = EV_VIEW (object);
188 g_object_unref (view->document);
191 g_object_unref (view->history);
193 ev_view_set_scroll_adjustments (view, NULL, NULL);
195 g_array_free (view->find_results, TRUE);
196 view->find_results = NULL;
198 G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
202 ev_view_destroy (GtkObject *object)
204 EvView *view = EV_VIEW (object);
206 ev_view_set_scroll_adjustments (view, NULL, NULL);
208 GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
212 ev_view_size_request (GtkWidget *widget,
213 GtkRequisition *requisition)
215 EvView *view = EV_VIEW (widget);
217 if (GTK_WIDGET_REALIZED (widget)) {
218 if (view->document) {
219 ev_document_get_page_size (view->document,
221 &requisition->height);
223 requisition->width = 10;
224 requisition->height = 10;
227 requisition->width += 2;
228 requisition->height += 2;
234 ev_view_size_allocate (GtkWidget *widget,
235 GtkAllocation *allocation)
237 EvView *view = EV_VIEW (widget);
239 GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
241 view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
242 view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
244 if (GTK_WIDGET_REALIZED (widget)) {
245 gdk_window_resize (view->bin_window,
246 MAX (widget->allocation.width, widget->requisition.width),
247 MAX (widget->allocation.height, widget->requisition.height));
252 ev_view_realize (GtkWidget *widget)
254 EvView *view = EV_VIEW (widget);
255 GdkWindowAttr attributes;
257 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
259 attributes.window_type = GDK_WINDOW_CHILD;
260 attributes.wclass = GDK_INPUT_OUTPUT;
261 attributes.visual = gtk_widget_get_visual (widget);
262 attributes.colormap = gtk_widget_get_colormap (widget);
264 attributes.x = widget->allocation.x;
265 attributes.y = widget->allocation.y;
266 attributes.width = widget->allocation.width;
267 attributes.height = widget->allocation.height;
268 attributes.event_mask = 0;
270 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
272 GDK_WA_X | GDK_WA_Y |
275 gdk_window_set_user_data (widget->window, widget);
276 widget->style = gtk_style_attach (widget->style, widget->window);
280 attributes.width = MAX (widget->allocation.width, widget->requisition.width);
281 attributes.height = MAX (widget->allocation.height, widget->requisition.height);
282 attributes.event_mask = GDK_EXPOSURE_MASK |
283 GDK_BUTTON_PRESS_MASK |
284 GDK_BUTTON_RELEASE_MASK |
287 GDK_POINTER_MOTION_MASK;
289 view->bin_window = gdk_window_new (widget->window,
291 GDK_WA_X | GDK_WA_Y |
294 gdk_window_set_user_data (view->bin_window, widget);
295 gdk_window_show (view->bin_window);
297 widget->style = gtk_style_attach (widget->style, view->bin_window);
298 gtk_style_set_background (widget->style, view->bin_window, GTK_STATE_NORMAL);
300 if (view->document) {
301 ev_document_set_target (view->document, view->bin_window);
303 /* We can't get page size without a target, so we have to
304 * queue a size request at realization. Could be fixed
305 * with EvDocument changes to allow setting a GdkScreen
306 * without setting a target.
308 gtk_widget_queue_resize (widget);
313 ev_view_unrealize (GtkWidget *widget)
315 EvView *view = EV_VIEW (widget);
318 ev_document_set_target (view->document, NULL);
320 gdk_window_set_user_data (view->bin_window, NULL);
321 gdk_window_destroy (view->bin_window);
322 view->bin_window = NULL;
324 GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
328 ev_gdk_color_to_rgb (const GdkColor *color)
331 result = (0xff0000 | (color->red & 0xff00));
333 result |= ((color->green & 0xff00) | (color->blue >> 8));
338 draw_rubberband (GtkWidget *widget, GdkWindow *window, const GdkRectangle *rect)
342 GdkColor *fill_color_gdk;
345 fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
346 fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | 0x40;
348 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
349 rect->width, rect->height);
350 gdk_pixbuf_fill (pixbuf, fill_color);
352 gdk_draw_pixbuf (window, NULL, pixbuf,
355 rect->width, rect->height,
359 g_object_unref (pixbuf);
361 gc = gdk_gc_new (window);
362 gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
363 gdk_draw_rectangle (window, gc, FALSE,
369 gdk_color_free (fill_color_gdk);
373 expose_bin_window (GtkWidget *widget,
374 GdkEventExpose *event)
376 EvView *view = EV_VIEW (widget);
378 int x_offset, y_offset;
379 const EvFindResult *results;
381 if (view->document == NULL)
384 x_offset = MAX (0, (widget->allocation.width -
385 widget->requisition.width) / 2);
386 y_offset = MAX (0, (widget->allocation.height -
387 widget->requisition.height) / 2);
388 gdk_draw_rectangle (view->bin_window,
389 widget->style->black_gc,
393 widget->requisition.width - 1,
394 widget->requisition.height - 1);
396 ev_document_set_page_offset (view->document,
400 ev_document_render (view->document,
401 event->area.x, event->area.y,
402 event->area.width, event->area.height);
404 results = (EvFindResult*) view->find_results->data;
405 current_page = ev_document_get_page (view->document);
407 while (i < view->find_results->len) {
409 g_printerr ("highlighting result %d page %d at %d,%d %dx%d\n",
410 i, results[i].page_num,
411 results[i].highlight_area.x,
412 results[i].highlight_area.y,
413 results[i].highlight_area.width,
414 results[i].highlight_area.height);
416 if (results[i].page_num == current_page)
417 draw_rubberband (widget, view->bin_window,
418 &results[i].highlight_area);
422 if (view->has_selection) {
423 draw_rubberband (widget, view->bin_window, &view->selection);
428 ev_view_expose_event (GtkWidget *widget,
429 GdkEventExpose *event)
431 EvView *view = EV_VIEW (widget);
433 if (event->window == view->bin_window)
434 expose_bin_window (widget, event);
436 return GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event (widget, event);
442 ev_view_select_all (EvView *ev_view)
444 GtkWidget *widget = GTK_WIDGET (ev_view);
446 g_return_if_fail (EV_IS_VIEW (ev_view));
448 ev_view->has_selection = TRUE;
449 ev_view->selection.x = ev_view->selection.y = 0;
450 ev_view->selection.width = widget->requisition.width;
451 ev_view->selection.height = widget->requisition.height;
453 gtk_widget_queue_draw (widget);
457 ev_view_copy (EvView *ev_view)
459 GtkClipboard *clipboard;
462 text = ev_document_get_text (ev_view->document, &ev_view->selection);
463 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
464 GDK_SELECTION_CLIPBOARD);
465 gtk_clipboard_set_text (clipboard, text, -1);
470 ev_view_primary_get_cb (GtkClipboard *clipboard,
471 GtkSelectionData *selection_data,
475 EvView *ev_view = EV_VIEW (data);
478 text = ev_document_get_text (ev_view->document, &ev_view->selection);
479 gtk_selection_data_set_text (selection_data, text, -1);
483 ev_view_primary_clear_cb (GtkClipboard *clipboard,
486 EvView *ev_view = EV_VIEW (data);
488 ev_view->has_selection = FALSE;
492 ev_view_update_primary_selection (EvView *ev_view)
494 GtkClipboard *clipboard;
496 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
497 GDK_SELECTION_PRIMARY);
499 if (ev_view->has_selection) {
500 if (!gtk_clipboard_set_with_owner (clipboard,
502 G_N_ELEMENTS (targets),
503 ev_view_primary_get_cb,
504 ev_view_primary_clear_cb,
506 ev_view_primary_clear_cb (clipboard, ev_view);
508 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
509 gtk_clipboard_clear (clipboard);
514 ev_view_button_press_event (GtkWidget *widget,
515 GdkEventButton *event)
517 EvView *view = EV_VIEW (widget);
519 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
520 gtk_widget_grab_focus (widget);
523 view->pressed_button = event->button;
525 switch (event->button) {
527 if (view->has_selection) {
528 view->has_selection = FALSE;
529 gtk_widget_queue_draw (widget);
532 view->selection.x = event->x;
533 view->selection.y = event->y;
534 view->selection.width = 0;
535 view->selection.height = 0;
543 status_message_from_link (EvLink *link)
549 type = ev_link_get_link_type (link);
552 case EV_LINK_TYPE_TITLE:
553 msg = g_strdup (ev_link_get_title (link));
555 case EV_LINK_TYPE_PAGE:
556 page = ev_link_get_page (link);
557 msg = g_strdup_printf (_("Go to page %d"), page);
559 case EV_LINK_TYPE_EXTERNAL_URI:
560 msg = g_strdup (ev_link_get_uri (link));
570 ev_view_set_status (EvView *view, const char *message)
572 g_return_if_fail (EV_IS_VIEW (view));
574 if (message != view->status) {
575 g_free (view->status);
576 view->status = g_strdup (message);
577 g_object_notify (G_OBJECT (view), "status");
582 ev_view_set_find_status (EvView *view, const char *message)
584 g_return_if_fail (EV_IS_VIEW (view));
586 g_free (view->find_status);
587 view->find_status = g_strdup (message);
588 g_object_notify (G_OBJECT (view), "find-status");
592 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
594 GdkCursor *cursor = NULL;
598 if (view->cursor == new_cursor) {
602 widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
603 display = gtk_widget_get_display (widget);
604 view->cursor = new_cursor;
606 switch (new_cursor) {
607 case EV_VIEW_CURSOR_NORMAL:
608 gdk_window_set_cursor (widget->window, NULL);
610 case EV_VIEW_CURSOR_LINK:
611 cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
613 case EV_VIEW_CURSOR_WAIT:
614 cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
619 gdk_window_set_cursor (widget->window, cursor);
620 gdk_cursor_unref (cursor);
626 ev_view_motion_notify_event (GtkWidget *widget,
627 GdkEventMotion *event)
629 EvView *view = EV_VIEW (widget);
631 if (view->pressed_button > 0) {
632 view->has_selection = TRUE;
633 view->selection.x = MIN (view->selection.x, event->x);
634 view->selection.y = MIN (view->selection.y, event->y);
635 view->selection.width = ABS (view->selection.x - event->x) + 1;
636 view->selection.height = ABS (view->selection.y - event->y) + 1;
637 } else if (view->document) {
640 link = ev_document_get_link (view->document, event->x, event->y);
644 msg = status_message_from_link (link);
645 ev_view_set_status (view, msg);
646 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
649 g_object_unref (link);
651 ev_view_set_status (view, NULL);
652 if (view->cursor == EV_VIEW_CURSOR_LINK) {
653 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
658 gtk_widget_queue_draw (widget);
664 ev_view_button_release_event (GtkWidget *widget,
665 GdkEventButton *event)
667 EvView *view = EV_VIEW (widget);
669 view->pressed_button = -1;
671 if (view->has_selection) {
672 ev_view_update_primary_selection (view);
673 } else if (view->document) {
676 link = ev_document_get_link (view->document,
680 ev_view_go_to_link (view, link);
681 g_object_unref (link);
689 on_adjustment_value_changed (GtkAdjustment *adjustment,
692 view_update_adjustments (view);
696 set_scroll_adjustment (EvView *view,
697 GtkOrientation orientation,
698 GtkAdjustment *adjustment)
700 GtkAdjustment **to_set;
702 if (orientation == GTK_ORIENTATION_HORIZONTAL)
703 to_set = &view->hadjustment;
705 to_set = &view->vadjustment;
707 if (*to_set != adjustment) {
709 g_signal_handlers_disconnect_by_func (*to_set,
710 (gpointer) on_adjustment_value_changed,
712 g_object_unref (*to_set);
715 *to_set = adjustment;
716 view_set_adjustment_values (view, orientation);
719 g_object_ref (*to_set);
720 g_signal_connect (*to_set, "value_changed",
721 G_CALLBACK (on_adjustment_value_changed), view);
727 ev_view_set_scroll_adjustments (EvView *view,
728 GtkAdjustment *hadjustment,
729 GtkAdjustment *vadjustment)
731 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
732 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
734 view_update_adjustments (view);
738 add_scroll_binding (GtkBindingSet *binding_set,
740 GtkScrollType scroll,
743 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
745 gtk_binding_entry_add_signal (binding_set, keyval, 0,
747 GTK_TYPE_SCROLL_TYPE, scroll,
748 G_TYPE_BOOLEAN, horizontal);
749 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
751 GTK_TYPE_SCROLL_TYPE, scroll,
752 G_TYPE_BOOLEAN, horizontal);
756 ev_view_scroll_view (EvView *view,
757 GtkScrollType scroll,
760 if (scroll == GTK_SCROLL_PAGE_BACKWARD) {
761 ev_view_set_page (view, ev_view_get_page (view) - 1);
762 } else if (scroll == GTK_SCROLL_PAGE_FORWARD) {
763 ev_view_set_page (view, ev_view_get_page (view) + 1);
765 GtkAdjustment *adjustment;
769 adjustment = view->hadjustment;
771 adjustment = view->vadjustment;
774 value = adjustment->value;
777 case GTK_SCROLL_STEP_BACKWARD:
778 value -= adjustment->step_increment;
780 case GTK_SCROLL_STEP_FORWARD:
781 value += adjustment->step_increment;
787 value = CLAMP (value, adjustment->lower,
788 adjustment->upper - adjustment->page_size);
790 gtk_adjustment_set_value (adjustment, value);
795 ev_view_set_property (GObject *object,
804 case PROP_FIND_STATUS:
810 ev_view_get_property (GObject *object,
815 EvView *view = EV_VIEW (object);
820 g_value_set_string (value, view->status);
822 case PROP_FIND_STATUS:
823 g_value_set_string (value, view->status);
829 ev_view_class_init (EvViewClass *class)
831 GObjectClass *object_class = G_OBJECT_CLASS (class);
832 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
833 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
834 GtkBindingSet *binding_set;
836 object_class->finalize = ev_view_finalize;
837 object_class->set_property = ev_view_set_property;
838 object_class->get_property = ev_view_get_property;
840 widget_class->expose_event = ev_view_expose_event;
841 widget_class->button_press_event = ev_view_button_press_event;
842 widget_class->motion_notify_event = ev_view_motion_notify_event;
843 widget_class->button_release_event = ev_view_button_release_event;
844 widget_class->size_request = ev_view_size_request;
845 widget_class->size_allocate = ev_view_size_allocate;
846 widget_class->realize = ev_view_realize;
847 widget_class->unrealize = ev_view_unrealize;
848 gtk_object_class->destroy = ev_view_destroy;
850 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
851 class->scroll_view = ev_view_scroll_view;
853 widget_class->set_scroll_adjustments_signal = g_signal_new ("set-scroll-adjustments",
854 G_OBJECT_CLASS_TYPE (object_class),
855 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
856 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
858 ev_marshal_VOID__OBJECT_OBJECT,
861 GTK_TYPE_ADJUSTMENT);
862 page_changed_signal = g_signal_new ("page-changed",
863 G_OBJECT_CLASS_TYPE (object_class),
864 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
865 G_STRUCT_OFFSET (EvViewClass, page_changed),
867 ev_marshal_VOID__NONE,
870 g_signal_new ("scroll_view",
871 G_TYPE_FROM_CLASS (object_class),
872 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
873 G_STRUCT_OFFSET (EvViewClass, scroll_view),
875 ev_marshal_VOID__ENUM_BOOLEAN,
877 GTK_TYPE_SCROLL_TYPE,
880 g_object_class_install_property (object_class,
882 g_param_spec_string ("status",
884 "The status message",
888 g_object_class_install_property (object_class,
890 g_param_spec_string ("find-status",
891 "Find Status Message",
892 "The find status message",
896 binding_set = gtk_binding_set_by_class (class);
898 add_scroll_binding (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
899 add_scroll_binding (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
900 add_scroll_binding (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
901 add_scroll_binding (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
903 add_scroll_binding (binding_set, GDK_Page_Up, GTK_SCROLL_PAGE_BACKWARD, FALSE);
904 add_scroll_binding (binding_set, GDK_Page_Down, GTK_SCROLL_PAGE_FORWARD, FALSE);
908 ev_view_init (EvView *view)
910 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
913 view->pressed_button = -1;
914 view->cursor = EV_VIEW_CURSOR_NORMAL;
916 view->find_results = g_array_new (FALSE,
918 sizeof (EvFindResult));
919 view->results_on_this_page = 0;
920 view->next_page_with_result = 0;
924 ev_view_get_find_status_message (EvView *view)
926 if (view->find_results->len == 0) {
927 if (view->find_percent_complete >= (1.0 - 1e-10)) {
928 return g_strdup (_("Not found"));
930 return g_strdup_printf (_("%3d%% remaining to search"),
931 (int) ((1.0 - view->find_percent_complete) * 100));
933 } else if (view->results_on_this_page == 0) {
934 g_assert (view->next_page_with_result != 0);
935 return g_strdup_printf (_("Found on page %d"),
936 view->next_page_with_result);
938 return g_strdup_printf (_("%d found on this page"),
939 view->results_on_this_page);
944 update_find_results (EvView *view)
946 const EvFindResult *results;
949 int next_page_with_result;
950 int earliest_page_with_result;
952 gboolean counts_changed;
954 results = (EvFindResult*) view->find_results->data;
955 current_page = ev_document_get_page (view->document);
956 next_page_with_result = 0;
958 earliest_page_with_result = 0;
961 while (i < view->find_results->len) {
962 if (results[i].page_num == current_page) {
965 int delta = results[i].page_num - current_page;
967 if (delta > 0 && /* result on later page */
968 (next_page_with_result == 0 ||
969 results[i].page_num < next_page_with_result))
970 next_page_with_result = results[i].page_num;
972 if (delta < 0 && /* result on a previous page */
973 (earliest_page_with_result == 0 ||
974 results[i].page_num < earliest_page_with_result))
975 earliest_page_with_result = results[i].page_num;
980 /* If earliest page is just the current page, there is no earliest page */
981 if (earliest_page_with_result == current_page)
982 earliest_page_with_result = 0;
984 /* If no next page, then wrap and the wrapped page is the next page */
985 if (next_page_with_result == 0)
986 next_page_with_result = earliest_page_with_result;
988 counts_changed = FALSE;
989 if (on_this_page != view->results_on_this_page ||
990 next_page_with_result != view->next_page_with_result) {
991 view->results_on_this_page = on_this_page;
992 view->next_page_with_result = next_page_with_result;
993 counts_changed = TRUE;
996 if (counts_changed ||
997 view->find_results->len == 0) {
1000 message = ev_view_get_find_status_message (view);
1001 ev_view_set_find_status (view, message);
1007 found_results_callback (EvDocument *document,
1008 const EvFindResult *results,
1010 double percent_complete,
1013 EvView *view = EV_VIEW (data);
1015 g_array_set_size (view->find_results, 0);
1018 g_array_append_vals (view->find_results,
1019 results, n_results);
1025 g_printerr ("%d results %d%%: ", n_results,
1026 (int) (percent_complete * 100));
1028 while (i < n_results) {
1029 g_printerr ("%d ", results[i].page_num);
1036 view->find_percent_complete = percent_complete;
1037 update_find_results (view);
1039 gtk_widget_queue_draw (GTK_WIDGET (view));
1043 document_changed_callback (EvDocument *document,
1046 gtk_widget_queue_draw (GTK_WIDGET (view));
1047 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1050 /*** Public API ***/
1055 return g_object_new (EV_TYPE_VIEW, NULL);
1059 ev_view_set_document (EvView *view,
1060 EvDocument *document)
1062 g_return_if_fail (EV_IS_VIEW (view));
1064 if (document != view->document) {
1065 if (view->document) {
1066 g_signal_handlers_disconnect_by_func (view->document,
1067 found_results_callback,
1069 g_array_set_size (view->find_results, 0);
1070 view->results_on_this_page = 0;
1071 view->next_page_with_result = 0;
1073 g_object_unref (view->document);
1076 view->document = document;
1078 if (view->document) {
1079 g_object_ref (view->document);
1080 if (EV_IS_DOCUMENT_FIND (view->document))
1081 g_signal_connect (view->document,
1083 G_CALLBACK (found_results_callback),
1085 g_signal_connect (view->document,
1087 G_CALLBACK (document_changed_callback),
1091 if (GTK_WIDGET_REALIZED (view))
1092 ev_document_set_target (view->document, view->bin_window);
1094 gtk_widget_queue_resize (GTK_WIDGET (view));
1096 g_signal_emit (view, page_changed_signal, 0);
1101 set_document_page (EvView *view, int page)
1103 if (view->document) {
1104 int old_page = ev_document_get_page (view->document);
1106 if (old_page != page) {
1107 ev_view_set_cursor (view, EV_VIEW_CURSOR_WAIT);
1108 ev_document_set_page (view->document, page);
1111 if (old_page != ev_document_get_page (view->document)) {
1112 g_signal_emit (view, page_changed_signal, 0);
1114 view->has_selection = FALSE;
1115 view->find_percent_complete = 0.0;
1116 update_find_results (view);
1122 go_to_link (EvView *view, EvLink *link)
1128 type = ev_link_get_link_type (link);
1131 case EV_LINK_TYPE_TITLE:
1133 case EV_LINK_TYPE_PAGE:
1134 page = ev_link_get_page (link);
1135 set_document_page (view, page);
1137 case EV_LINK_TYPE_EXTERNAL_URI:
1138 uri = ev_link_get_uri (link);
1139 gnome_vfs_url_show (uri);
1145 ev_view_go_to_link (EvView *view, EvLink *link)
1149 go_to_link (view, link);
1151 type = ev_link_get_link_type (link);
1152 if (type == EV_LINK_TYPE_PAGE) {
1153 ev_history_add_link (view->history, link);
1158 go_to_index (EvView *view, int index)
1162 link = ev_history_get_link_nth (view->history, index);
1163 g_return_if_fail (link != NULL);
1165 go_to_link (view, link);
1169 ev_view_can_go_back (EvView *view)
1173 if (view->history == NULL) {
1177 index = ev_history_get_current_index (view->history);
1178 n = ev_history_get_n_links (view->history);
1181 return index != MAX (0, index - 1);
1188 ev_view_go_back (EvView *view)
1192 g_return_if_fail (EV_IS_HISTORY (view->history));
1194 index = ev_history_get_current_index (view->history);
1195 n = ev_history_get_n_links (view->history);
1198 index = MAX (0, index - 1);
1199 ev_history_set_current_index (view->history, index);
1204 ev_view_can_go_forward (EvView *view)
1208 if (view->history == NULL) {
1212 index = ev_history_get_current_index (view->history);
1213 n = ev_history_get_n_links (view->history);
1216 return index != MIN (n - 1, index + 1);
1223 ev_view_go_forward (EvView *view)
1227 g_return_if_fail (EV_IS_HISTORY (view->history));
1229 index = ev_history_get_current_index (view->history);
1230 n = ev_history_get_n_links (view->history);
1233 index = MIN (n - 1, index + 1);
1234 ev_history_set_current_index (view->history, index);
1240 ev_view_set_page (EvView *view,
1243 g_return_if_fail (EV_IS_VIEW (view));
1244 g_return_if_fail (EV_IS_HISTORY (view->history));
1246 set_document_page (view, page);
1247 ev_history_add_page (view->history, page);
1251 ev_view_get_page (EvView *view)
1254 return ev_document_get_page (view->document);
1259 #define ZOOM_IN_FACTOR 1.2
1260 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
1262 #define MIN_SCALE 0.05409
1263 #define MAX_SCALE 18.4884
1266 ev_view_zoom (EvView *view,
1273 scale = view->scale * factor;
1277 view->scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
1279 ev_document_set_scale (view->document, view->scale);
1281 gtk_widget_queue_resize (GTK_WIDGET (view));
1285 ev_view_zoom_in (EvView *view)
1287 ev_view_zoom (view, ZOOM_IN_FACTOR, TRUE);
1291 ev_view_zoom_out (EvView *view)
1293 ev_view_zoom (view, ZOOM_OUT_FACTOR, TRUE);
1297 ev_view_normal_size (EvView *view)
1299 ev_view_zoom (view, 1.0, FALSE);
1303 ev_view_best_fit (EvView *view)
1309 ev_document_get_page_size (view->document, &width, &height);
1312 if (width != 0 && height != 0) {
1313 double scale_w, scale_h;
1315 scale_w = (double)GTK_WIDGET (view)->allocation.width * view->scale / width;
1316 scale_h = (double)GTK_WIDGET (view)->allocation.height * view->scale / height;
1318 scale = (scale_w < scale_h) ? scale_w : scale_h;
1321 ev_view_zoom (view, scale, FALSE);
1325 ev_view_fit_width (EvView *view)
1331 ev_document_get_page_size (view->document, &width, NULL);
1335 scale = (double)GTK_WIDGET (view)->allocation.width * view->scale / width;
1337 ev_view_zoom (view, scale, FALSE);
1341 history_index_changed_cb (EvHistory *history,
1347 index = ev_history_get_current_index (history);
1348 go_to_index (view, index);
1352 ev_view_set_history (EvView *view,
1355 if (view->history) {
1356 g_object_unref (view->history);
1359 view->history = g_object_ref (history);
1360 ev_history_add_page (view->history, ev_view_get_page (view));
1362 g_signal_connect (view->history, "notify::index",
1363 G_CALLBACK (history_index_changed_cb),
1368 ev_view_get_status (EvView *view)
1370 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1372 return view->status;
1376 ev_view_get_find_status (EvView *view)
1378 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1380 return view->find_status;