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 GtkWidget parent_instance;
64 GdkWindow *bin_window;
72 gboolean pressed_button;
73 gboolean has_selection;
74 GdkRectangle selection;
76 GtkAdjustment *hadjustment;
77 GtkAdjustment *vadjustment;
80 int results_on_this_page;
81 int next_page_with_result;
82 double find_percent_complete;
88 GtkWidgetClass parent_class;
90 void (*set_scroll_adjustments) (EvView *view,
91 GtkAdjustment *hadjustment,
92 GtkAdjustment *vadjustment);
93 void (*scroll_view) (EvView *view,
97 /* Should this be notify::page? */
98 void (*page_changed) (EvView *view);
101 static guint page_changed_signal = 0;
103 static void ev_view_set_scroll_adjustments (EvView *view,
104 GtkAdjustment *hadjustment,
105 GtkAdjustment *vadjustment);
107 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
109 /*** Helper functions ***/
112 view_update_adjustments (EvView *view)
114 int old_x = view->scroll_x;
115 int old_y = view->scroll_y;
117 if (view->hadjustment)
118 view->scroll_x = view->hadjustment->value;
122 if (view->vadjustment)
123 view->scroll_y = view->vadjustment->value;
127 if (GTK_WIDGET_REALIZED (view) &&
128 (view->scroll_x != old_x || view->scroll_y != old_y)) {
129 gdk_window_move (view->bin_window, - view->scroll_x, - view->scroll_y);
130 gdk_window_process_updates (view->bin_window, TRUE);
135 view_set_adjustment_values (EvView *view,
136 GtkOrientation orientation)
138 GtkWidget *widget = GTK_WIDGET (view);
139 GtkAdjustment *adjustment;
140 gboolean value_changed = FALSE;
144 if (orientation == GTK_ORIENTATION_HORIZONTAL) {
145 requisition = widget->requisition.width;
146 allocation = widget->allocation.width;
147 adjustment = view->hadjustment;
149 requisition = widget->requisition.height;
150 allocation = widget->allocation.height;
151 adjustment = view->vadjustment;
157 adjustment->page_size = allocation;
158 adjustment->step_increment = allocation * 0.1;
159 adjustment->page_increment = allocation * 0.9;
160 adjustment->lower = 0;
161 adjustment->upper = MAX (allocation, requisition);
163 if (adjustment->value > adjustment->upper - adjustment->page_size) {
164 adjustment->value = adjustment->upper - adjustment->page_size;
165 value_changed = TRUE;
168 gtk_adjustment_changed (adjustment);
170 gtk_adjustment_value_changed (adjustment);
173 /*** Virtual function implementations ***/
176 ev_view_finalize (GObject *object)
178 EvView *view = EV_VIEW (object);
181 g_object_unref (view->document);
184 g_object_unref (view->history);
186 ev_view_set_scroll_adjustments (view, NULL, NULL);
188 g_array_free (view->find_results, TRUE);
189 view->find_results = NULL;
191 G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
195 ev_view_destroy (GtkObject *object)
197 EvView *view = EV_VIEW (object);
199 ev_view_set_scroll_adjustments (view, NULL, NULL);
201 GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
205 ev_view_size_request (GtkWidget *widget,
206 GtkRequisition *requisition)
208 EvView *view = EV_VIEW (widget);
210 if (GTK_WIDGET_REALIZED (widget)) {
211 if (view->document) {
212 ev_document_get_page_size (view->document,
214 &requisition->height);
216 requisition->width = 10;
217 requisition->height = 10;
224 ev_view_size_allocate (GtkWidget *widget,
225 GtkAllocation *allocation)
227 EvView *view = EV_VIEW (widget);
229 GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
231 view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
232 view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
234 if (GTK_WIDGET_REALIZED (widget)) {
235 gdk_window_resize (view->bin_window,
236 MAX (widget->allocation.width, widget->requisition.width),
237 MAX (widget->allocation.height, widget->requisition.height));
242 update_window_backgrounds (EvView *view)
244 GtkWidget *widget = GTK_WIDGET (view);
246 if (GTK_WIDGET_REALIZED (view)) {
247 gdk_window_set_background (view->bin_window,
248 &widget->style->base[GTK_WIDGET_STATE (widget)]);
253 ev_view_realize (GtkWidget *widget)
255 EvView *view = EV_VIEW (widget);
256 GdkWindowAttr attributes;
258 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
260 attributes.window_type = GDK_WINDOW_CHILD;
261 attributes.wclass = GDK_INPUT_OUTPUT;
262 attributes.visual = gtk_widget_get_visual (widget);
263 attributes.colormap = gtk_widget_get_colormap (widget);
265 attributes.x = widget->allocation.x;
266 attributes.y = widget->allocation.y;
267 attributes.width = widget->allocation.width;
268 attributes.height = widget->allocation.height;
269 attributes.event_mask = 0;
271 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
273 GDK_WA_X | GDK_WA_Y |
276 gdk_window_set_user_data (widget->window, widget);
277 widget->style = gtk_style_attach (widget->style, widget->window);
281 attributes.width = MAX (widget->allocation.width, widget->requisition.width);
282 attributes.height = MAX (widget->allocation.height, widget->requisition.height);
283 attributes.event_mask = GDK_EXPOSURE_MASK |
284 GDK_BUTTON_PRESS_MASK |
285 GDK_BUTTON_RELEASE_MASK |
288 GDK_POINTER_MOTION_MASK;
290 view->bin_window = gdk_window_new (widget->window,
292 GDK_WA_X | GDK_WA_Y |
295 gdk_window_set_user_data (view->bin_window, widget);
296 gdk_window_show (view->bin_window);
298 if (view->document) {
299 ev_document_set_target (view->document, view->bin_window);
301 /* We can't get page size without a target, so we have to
302 * queue a size request at realization. Could be fixed
303 * with EvDocument changes to allow setting a GdkScreen
304 * without setting a target.
306 gtk_widget_queue_resize (widget);
309 update_window_backgrounds (view);
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_view_style_set (GtkWidget *widget,
329 GtkStyle *previous_style)
331 update_window_backgrounds (EV_VIEW (widget));
335 ev_view_state_changed (GtkWidget *widget,
336 GtkStateType previous_state)
338 update_window_backgrounds (EV_VIEW (widget));
342 ev_gdk_color_to_rgb (const GdkColor *color)
345 result = (0xff0000 | (color->red & 0xff00));
347 result |= ((color->green & 0xff00) | (color->blue >> 8));
352 draw_rubberband (GtkWidget *widget, GdkWindow *window, const GdkRectangle *rect)
356 GdkColor *fill_color_gdk;
359 fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
360 fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | 0x40;
362 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
363 rect->width, rect->height);
364 gdk_pixbuf_fill (pixbuf, fill_color);
366 gdk_draw_pixbuf (window, NULL, pixbuf,
369 rect->width, rect->height,
373 g_object_unref (pixbuf);
375 gc = gdk_gc_new (window);
376 gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
377 gdk_draw_rectangle (window, gc, FALSE,
383 gdk_color_free (fill_color_gdk);
387 expose_bin_window (GtkWidget *widget,
388 GdkEventExpose *event)
390 EvView *view = EV_VIEW (widget);
393 const EvFindResult *results;
395 if (view->document == NULL)
398 ev_document_render (view->document,
399 event->area.x, event->area.y,
400 event->area.width, event->area.height);
402 results = (EvFindResult*) view->find_results->data;
403 current_page = ev_document_get_page (view->document);
405 while (i < view->find_results->len) {
407 g_printerr ("highlighting result %d page %d at %d,%d %dx%d\n",
408 i, results[i].page_num,
409 results[i].highlight_area.x,
410 results[i].highlight_area.y,
411 results[i].highlight_area.width,
412 results[i].highlight_area.height);
414 if (results[i].page_num == current_page)
415 draw_rubberband (widget, view->bin_window,
416 &results[i].highlight_area);
420 if (view->has_selection) {
421 draw_rubberband (widget, view->bin_window, &view->selection);
426 ev_view_expose_event (GtkWidget *widget,
427 GdkEventExpose *event)
429 EvView *view = EV_VIEW (widget);
431 if (event->window == view->bin_window)
432 expose_bin_window (widget, event);
434 return GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event (widget, event);
440 ev_view_select_all (EvView *ev_view)
442 GtkWidget *widget = GTK_WIDGET (ev_view);
444 g_return_if_fail (EV_IS_VIEW (ev_view));
446 ev_view->has_selection = TRUE;
447 ev_view->selection.x = ev_view->selection.y = 0;
448 ev_view->selection.width = widget->requisition.width;
449 ev_view->selection.height = widget->requisition.height;
451 gtk_widget_queue_draw (widget);
455 ev_view_copy (EvView *ev_view)
457 GtkClipboard *clipboard;
460 text = ev_document_get_text (ev_view->document, &ev_view->selection);
461 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
462 GDK_SELECTION_CLIPBOARD);
463 gtk_clipboard_set_text (clipboard, text, -1);
468 ev_view_primary_get_cb (GtkClipboard *clipboard,
469 GtkSelectionData *selection_data,
473 EvView *ev_view = EV_VIEW (data);
476 text = ev_document_get_text (ev_view->document, &ev_view->selection);
477 gtk_selection_data_set_text (selection_data, text, -1);
481 ev_view_primary_clear_cb (GtkClipboard *clipboard,
484 EvView *ev_view = EV_VIEW (data);
486 ev_view->has_selection = FALSE;
490 ev_view_update_primary_selection (EvView *ev_view)
492 GtkClipboard *clipboard;
494 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
495 GDK_SELECTION_PRIMARY);
497 if (ev_view->has_selection) {
498 if (!gtk_clipboard_set_with_owner (clipboard,
500 G_N_ELEMENTS (targets),
501 ev_view_primary_get_cb,
502 ev_view_primary_clear_cb,
504 ev_view_primary_clear_cb (clipboard, ev_view);
506 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
507 gtk_clipboard_clear (clipboard);
512 ev_view_button_press_event (GtkWidget *widget,
513 GdkEventButton *event)
515 EvView *view = EV_VIEW (widget);
517 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
518 gtk_widget_grab_focus (widget);
521 view->pressed_button = event->button;
523 switch (event->button) {
525 if (view->has_selection) {
526 view->has_selection = FALSE;
527 gtk_widget_queue_draw (widget);
530 view->selection.x = event->x;
531 view->selection.y = event->y;
532 view->selection.width = 0;
533 view->selection.height = 0;
541 status_message_from_link (EvLink *link)
547 type = ev_link_get_link_type (link);
550 case EV_LINK_TYPE_TITLE:
551 msg = g_strdup (ev_link_get_title (link));
553 case EV_LINK_TYPE_PAGE:
554 page = ev_link_get_page (link);
555 msg = g_strdup_printf (_("Page %d"), page);
557 case EV_LINK_TYPE_EXTERNAL_URI:
558 msg = g_strdup (ev_link_get_uri (link));
568 ev_view_set_status (EvView *view, const char *message)
570 g_return_if_fail (EV_IS_VIEW (view));
572 g_free (view->status);
573 view->status = g_strdup (message);
574 g_object_notify (G_OBJECT (view), "status");
578 ev_view_set_find_status (EvView *view, const char *message)
580 g_return_if_fail (EV_IS_VIEW (view));
582 g_free (view->find_status);
583 view->find_status = g_strdup (message);
584 g_object_notify (G_OBJECT (view), "find-status");
588 ev_view_motion_notify_event (GtkWidget *widget,
589 GdkEventMotion *event)
591 EvView *view = EV_VIEW (widget);
593 if (view->pressed_button > 0) {
594 view->has_selection = TRUE;
595 view->selection.x = MIN (view->selection.x, event->x);
596 view->selection.y = MIN (view->selection.y, event->y);
597 view->selection.width = ABS (view->selection.x - event->x) + 1;
598 view->selection.height = ABS (view->selection.y - event->y) + 1;
599 } else if (view->document) {
602 link = ev_document_get_link (view->document, event->x, event->y);
606 msg = status_message_from_link (link);
607 ev_view_set_status (view, msg);
610 g_object_unref (link);
614 gtk_widget_queue_draw (widget);
620 ev_view_button_release_event (GtkWidget *widget,
621 GdkEventButton *event)
623 EvView *view = EV_VIEW (widget);
625 view->pressed_button = -1;
627 if (view->has_selection) {
628 ev_view_update_primary_selection (view);
629 } else if (view->document) {
632 link = ev_document_get_link (view->document,
636 ev_view_go_to_link (view, link);
637 g_object_unref (link);
645 on_adjustment_value_changed (GtkAdjustment *adjustment,
648 view_update_adjustments (view);
652 set_scroll_adjustment (EvView *view,
653 GtkOrientation orientation,
654 GtkAdjustment *adjustment)
656 GtkAdjustment **to_set;
658 if (orientation == GTK_ORIENTATION_HORIZONTAL)
659 to_set = &view->hadjustment;
661 to_set = &view->vadjustment;
663 if (*to_set != adjustment) {
665 g_signal_handlers_disconnect_by_func (*to_set,
666 (gpointer) on_adjustment_value_changed,
668 g_object_unref (*to_set);
671 *to_set = adjustment;
672 view_set_adjustment_values (view, orientation);
675 g_object_ref (*to_set);
676 g_signal_connect (*to_set, "value_changed",
677 G_CALLBACK (on_adjustment_value_changed), view);
683 ev_view_set_scroll_adjustments (EvView *view,
684 GtkAdjustment *hadjustment,
685 GtkAdjustment *vadjustment)
687 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
688 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
690 view_update_adjustments (view);
694 add_scroll_binding (GtkBindingSet *binding_set,
696 GtkScrollType scroll,
699 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
701 gtk_binding_entry_add_signal (binding_set, keyval, 0,
703 GTK_TYPE_SCROLL_TYPE, scroll,
704 G_TYPE_BOOLEAN, horizontal);
705 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
707 GTK_TYPE_SCROLL_TYPE, scroll,
708 G_TYPE_BOOLEAN, horizontal);
712 ev_view_scroll_view (EvView *view,
713 GtkScrollType scroll,
716 if (scroll == GTK_SCROLL_PAGE_BACKWARD) {
717 ev_view_set_page (view, ev_view_get_page (view) - 1);
718 } else if (scroll == GTK_SCROLL_PAGE_FORWARD) {
719 ev_view_set_page (view, ev_view_get_page (view) + 1);
721 GtkAdjustment *adjustment;
725 adjustment = view->hadjustment;
727 adjustment = view->vadjustment;
730 value = adjustment->value;
733 case GTK_SCROLL_STEP_BACKWARD:
734 value -= adjustment->step_increment;
736 case GTK_SCROLL_STEP_FORWARD:
737 value += adjustment->step_increment;
743 value = CLAMP (value, adjustment->lower,
744 adjustment->upper - adjustment->page_size);
746 gtk_adjustment_set_value (adjustment, value);
751 ev_view_set_property (GObject *object,
760 case PROP_FIND_STATUS:
766 ev_view_get_property (GObject *object,
771 EvView *view = EV_VIEW (object);
776 g_value_set_string (value, view->status);
778 case PROP_FIND_STATUS:
779 g_value_set_string (value, view->status);
785 ev_view_class_init (EvViewClass *class)
787 GObjectClass *object_class = G_OBJECT_CLASS (class);
788 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
789 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
790 GtkBindingSet *binding_set;
792 object_class->finalize = ev_view_finalize;
793 object_class->set_property = ev_view_set_property;
794 object_class->get_property = ev_view_get_property;
796 widget_class->expose_event = ev_view_expose_event;
797 widget_class->button_press_event = ev_view_button_press_event;
798 widget_class->motion_notify_event = ev_view_motion_notify_event;
799 widget_class->button_release_event = ev_view_button_release_event;
800 widget_class->size_request = ev_view_size_request;
801 widget_class->size_allocate = ev_view_size_allocate;
802 widget_class->realize = ev_view_realize;
803 widget_class->unrealize = ev_view_unrealize;
804 widget_class->style_set = ev_view_style_set;
805 widget_class->state_changed = ev_view_state_changed;
806 gtk_object_class->destroy = ev_view_destroy;
808 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
809 class->scroll_view = ev_view_scroll_view;
811 widget_class->set_scroll_adjustments_signal = g_signal_new ("set-scroll-adjustments",
812 G_OBJECT_CLASS_TYPE (object_class),
813 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
814 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
816 ev_marshal_VOID__OBJECT_OBJECT,
819 GTK_TYPE_ADJUSTMENT);
820 page_changed_signal = g_signal_new ("page-changed",
821 G_OBJECT_CLASS_TYPE (object_class),
822 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
823 G_STRUCT_OFFSET (EvViewClass, page_changed),
825 ev_marshal_VOID__NONE,
828 g_signal_new ("scroll_view",
829 G_TYPE_FROM_CLASS (object_class),
830 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
831 G_STRUCT_OFFSET (EvViewClass, scroll_view),
833 ev_marshal_VOID__ENUM_BOOLEAN,
835 GTK_TYPE_SCROLL_TYPE,
838 g_object_class_install_property (object_class,
840 g_param_spec_string ("status",
842 "The status message",
846 g_object_class_install_property (object_class,
848 g_param_spec_string ("find-status",
849 "Find Status Message",
850 "The find status message",
854 binding_set = gtk_binding_set_by_class (class);
856 add_scroll_binding (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
857 add_scroll_binding (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
858 add_scroll_binding (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
859 add_scroll_binding (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
861 add_scroll_binding (binding_set, GDK_Page_Up, GTK_SCROLL_PAGE_BACKWARD, FALSE);
862 add_scroll_binding (binding_set, GDK_Page_Down, GTK_SCROLL_PAGE_FORWARD, FALSE);
866 ev_view_init (EvView *view)
868 static const GdkColor white = { 0, 0xffff, 0xffff, 0xffff };
870 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
873 view->pressed_button = -1;
875 gtk_widget_modify_bg (GTK_WIDGET (view), GTK_STATE_NORMAL, &white);
877 view->find_results = g_array_new (FALSE,
879 sizeof (EvFindResult));
880 view->results_on_this_page = 0;
881 view->next_page_with_result = 0;
885 ev_view_get_find_status_message (EvView *view)
887 if (view->find_results->len == 0) {
888 if (view->find_percent_complete >= (1.0 - 1e-10)) {
889 return g_strdup (_("Not found"));
891 return g_strdup_printf (_("%3d%% remaining to search"),
892 (int) ((1.0 - view->find_percent_complete) * 100));
894 } else if (view->results_on_this_page == 0) {
895 g_assert (view->next_page_with_result != 0);
896 return g_strdup_printf (_("Found on page %d"),
897 view->next_page_with_result);
899 return g_strdup_printf (_("%d found on this page"),
900 view->results_on_this_page);
905 update_find_results (EvView *view)
907 const EvFindResult *results;
910 int next_page_with_result;
911 int earliest_page_with_result;
913 gboolean counts_changed;
915 results = (EvFindResult*) view->find_results->data;
916 current_page = ev_document_get_page (view->document);
917 next_page_with_result = 0;
919 earliest_page_with_result = 0;
922 while (i < view->find_results->len) {
923 if (results[i].page_num == current_page) {
926 int delta = results[i].page_num - current_page;
928 if (delta > 0 && /* result on later page */
929 (next_page_with_result == 0 ||
930 results[i].page_num < next_page_with_result))
931 next_page_with_result = results[i].page_num;
933 if (delta < 0 && /* result on a previous page */
934 (earliest_page_with_result == 0 ||
935 results[i].page_num < earliest_page_with_result))
936 earliest_page_with_result = results[i].page_num;
941 /* If earliest page is just the current page, there is no earliest page */
942 if (earliest_page_with_result == current_page)
943 earliest_page_with_result = 0;
945 /* If no next page, then wrap and the wrapped page is the next page */
946 if (next_page_with_result == 0)
947 next_page_with_result = earliest_page_with_result;
949 counts_changed = FALSE;
950 if (on_this_page != view->results_on_this_page ||
951 next_page_with_result != view->next_page_with_result) {
952 view->results_on_this_page = on_this_page;
953 view->next_page_with_result = next_page_with_result;
954 counts_changed = TRUE;
957 if (counts_changed ||
958 view->find_results->len == 0) {
961 message = ev_view_get_find_status_message (view);
962 ev_view_set_find_status (view, message);
968 found_results_callback (EvDocument *document,
969 const EvFindResult *results,
971 double percent_complete,
974 EvView *view = EV_VIEW (data);
976 g_array_set_size (view->find_results, 0);
979 g_array_append_vals (view->find_results,
986 g_printerr ("%d results %d%%: ", n_results,
987 (int) (percent_complete * 100));
989 while (i < n_results) {
990 g_printerr ("%d ", results[i].page_num);
997 view->find_percent_complete = percent_complete;
998 update_find_results (view);
1000 gtk_widget_queue_draw (GTK_WIDGET (view));
1003 /*** Public API ***/
1008 return g_object_new (EV_TYPE_VIEW, NULL);
1012 document_changed_callback (EvDocument *document,
1015 gtk_widget_queue_draw (GTK_WIDGET (view));
1019 ev_view_set_document (EvView *view,
1020 EvDocument *document)
1022 g_return_if_fail (EV_IS_VIEW (view));
1024 if (document != view->document) {
1025 int old_page = ev_view_get_page (view);
1027 if (view->document) {
1028 g_signal_handlers_disconnect_by_func (view->document,
1029 found_results_callback,
1031 g_array_set_size (view->find_results, 0);
1032 view->results_on_this_page = 0;
1033 view->next_page_with_result = 0;
1035 g_object_unref (view->document);
1038 view->document = document;
1040 if (view->document) {
1041 g_object_ref (view->document);
1042 if (EV_IS_DOCUMENT_FIND (view->document))
1043 g_signal_connect (view->document,
1045 G_CALLBACK (found_results_callback),
1047 g_signal_connect (view->document,
1049 G_CALLBACK (document_changed_callback),
1053 if (GTK_WIDGET_REALIZED (view))
1054 ev_document_set_target (view->document, view->bin_window);
1056 gtk_widget_queue_resize (GTK_WIDGET (view));
1058 if (old_page != ev_view_get_page (view))
1059 g_signal_emit (view, page_changed_signal, 0);
1064 set_document_page (EvView *view, int page)
1066 if (view->document) {
1067 int old_page = ev_document_get_page (view->document);
1068 if (old_page != page)
1069 ev_document_set_page (view->document, page);
1070 if (old_page != ev_document_get_page (view->document)) {
1071 g_signal_emit (view, page_changed_signal, 0);
1073 view->find_percent_complete = 0.0;
1074 update_find_results (view);
1080 go_to_link (EvView *view, EvLink *link)
1086 type = ev_link_get_link_type (link);
1089 case EV_LINK_TYPE_TITLE:
1091 case EV_LINK_TYPE_PAGE:
1092 page = ev_link_get_page (link);
1093 set_document_page (view, page);
1095 case EV_LINK_TYPE_EXTERNAL_URI:
1096 uri = ev_link_get_uri (link);
1097 gnome_vfs_url_show (uri);
1103 ev_view_go_to_link (EvView *view, EvLink *link)
1107 go_to_link (view, link);
1109 type = ev_link_get_link_type (link);
1110 if (type == EV_LINK_TYPE_PAGE) {
1111 ev_history_add_link (view->history, link);
1116 go_to_index (EvView *view, int index)
1120 link = ev_history_get_link_nth (view->history, index);
1121 g_return_if_fail (link != NULL);
1123 go_to_link (view, link);
1127 ev_view_can_go_back (EvView *view)
1131 g_return_val_if_fail (EV_IS_HISTORY (view->history), FALSE);
1133 index = ev_history_get_current_index (view->history);
1134 n = ev_history_get_n_links (view->history);
1137 return index != MAX (0, index - 1);
1144 ev_view_go_back (EvView *view)
1148 g_return_if_fail (EV_IS_HISTORY (view->history));
1150 index = ev_history_get_current_index (view->history);
1151 n = ev_history_get_n_links (view->history);
1154 index = MAX (0, index - 1);
1155 ev_history_set_current_index (view->history, index);
1160 ev_view_can_go_forward (EvView *view)
1164 g_return_val_if_fail (EV_IS_HISTORY (view->history), FALSE);
1166 index = ev_history_get_current_index (view->history);
1167 n = ev_history_get_n_links (view->history);
1170 return index != MIN (n - 1, index + 1);
1177 ev_view_go_forward (EvView *view)
1181 g_return_if_fail (EV_IS_HISTORY (view->history));
1183 index = ev_history_get_current_index (view->history);
1184 n = ev_history_get_n_links (view->history);
1187 index = MIN (n - 1, index + 1);
1188 ev_history_set_current_index (view->history, index);
1194 ev_view_set_page (EvView *view,
1197 g_return_if_fail (EV_IS_VIEW (view));
1198 g_return_if_fail (EV_IS_HISTORY (view->history));
1200 set_document_page (view, page);
1201 ev_history_add_page (view->history, page);
1205 ev_view_get_page (EvView *view)
1208 return ev_document_get_page (view->document);
1213 #define ZOOM_IN_FACTOR 1.2
1214 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
1216 #define MIN_SCALE 0.05409
1217 #define MAX_SCALE 18.4884
1220 ev_view_zoom (EvView *view,
1227 scale = view->scale * factor;
1231 view->scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
1233 ev_document_set_scale (view->document, view->scale);
1235 gtk_widget_queue_resize (GTK_WIDGET (view));
1239 ev_view_zoom_in (EvView *view)
1241 ev_view_zoom (view, ZOOM_IN_FACTOR, TRUE);
1245 ev_view_zoom_out (EvView *view)
1247 ev_view_zoom (view, ZOOM_OUT_FACTOR, TRUE);
1251 ev_view_normal_size (EvView *view)
1253 ev_view_zoom (view, 1.0, FALSE);
1257 ev_view_best_fit (EvView *view)
1263 ev_document_get_page_size (view->document, &width, &height);
1266 if (width != 0 && height != 0) {
1267 double scale_w, scale_h;
1269 scale_w = (double)GTK_WIDGET (view)->allocation.width * view->scale / width;
1270 scale_h = (double)GTK_WIDGET (view)->allocation.height * view->scale / height;
1272 scale = (scale_w < scale_h) ? scale_w : scale_h;
1275 ev_view_zoom (view, scale, FALSE);
1279 ev_view_fit_width (EvView *view)
1285 ev_document_get_page_size (view->document, &width, NULL);
1289 scale = (double)GTK_WIDGET (view)->allocation.width * view->scale / width;
1291 ev_view_zoom (view, scale, FALSE);
1295 history_index_changed_cb (EvHistory *history,
1301 index = ev_history_get_current_index (history);
1302 go_to_index (view, index);
1306 ev_view_set_history (EvView *view,
1309 if (view->history) {
1310 g_object_unref (view->history);
1313 view->history = g_object_ref (history);
1314 ev_history_add_page (view->history, ev_view_get_page (view));
1316 g_signal_connect (view->history, "notify::index",
1317 G_CALLBACK (history_index_changed_cb),
1322 ev_view_get_status (EvView *view)
1324 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1326 return view->status;
1330 ev_view_get_find_status (EvView *view)
1332 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1334 return view->find_status;