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"
32 #include "ev-document-misc.h"
34 #include "ev-job-queue.h"
35 #include "ev-page-cache.h"
36 #include "ev-pixbuf-cache.h"
38 #define EV_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass))
39 #define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW))
40 #define EV_VIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass))
53 TARGET_TEXT_BUFFER_CONTENTS
56 static const GtkTargetEntry targets[] = {
57 { "STRING", 0, TARGET_STRING },
58 { "TEXT", 0, TARGET_TEXT },
59 { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
60 { "UTF8_STRING", 0, TARGET_UTF8_STRING },
64 EV_VIEW_CURSOR_NORMAL,
70 #define ZOOM_IN_FACTOR 1.2
71 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
73 #define MIN_SCALE 0.05409
74 #define MAX_SCALE 18.4884
77 GtkWidget parent_instance;
81 GdkWindow *bin_window;
89 gboolean pressed_button;
90 gboolean has_selection;
91 GdkPoint selection_start;
92 GdkRectangle selection;
95 GtkAdjustment *hadjustment;
96 GtkAdjustment *vadjustment;
98 EvPageCache *page_cache;
99 EvPixbufCache *pixbuf_cache;
102 EvJobRender *current_job;
113 struct _EvViewClass {
114 GtkWidgetClass parent_class;
116 void (*set_scroll_adjustments) (EvView *view,
117 GtkAdjustment *hadjustment,
118 GtkAdjustment *vadjustment);
119 void (*scroll_view) (EvView *view,
120 GtkScrollType scroll,
121 gboolean horizontal);
126 static void ev_view_set_scroll_adjustments (EvView *view,
127 GtkAdjustment *hadjustment,
128 GtkAdjustment *vadjustment);
130 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
132 /*** Helper functions ***/
135 view_update_adjustments (EvView *view)
137 int old_x = view->scroll_x;
138 int old_y = view->scroll_y;
140 if (view->hadjustment)
141 view->scroll_x = view->hadjustment->value;
145 if (view->vadjustment)
146 view->scroll_y = view->vadjustment->value;
150 if (GTK_WIDGET_REALIZED (view) &&
151 (view->scroll_x != old_x || view->scroll_y != old_y)) {
152 gdk_window_move (view->bin_window, - view->scroll_x, - view->scroll_y);
153 gdk_window_process_updates (view->bin_window, TRUE);
158 view_set_adjustment_values (EvView *view,
159 GtkOrientation orientation)
161 GtkWidget *widget = GTK_WIDGET (view);
162 GtkAdjustment *adjustment;
163 gboolean value_changed = FALSE;
167 if (orientation == GTK_ORIENTATION_HORIZONTAL) {
168 requisition = widget->requisition.width;
169 allocation = widget->allocation.width;
170 adjustment = view->hadjustment;
172 requisition = widget->requisition.height;
173 allocation = widget->allocation.height;
174 adjustment = view->vadjustment;
180 adjustment->page_size = allocation;
181 adjustment->step_increment = allocation * 0.1;
182 adjustment->page_increment = allocation * 0.9;
183 adjustment->lower = 0;
184 adjustment->upper = MAX (allocation, requisition);
186 if (adjustment->value > adjustment->upper - adjustment->page_size) {
187 adjustment->value = adjustment->upper - adjustment->page_size;
188 value_changed = TRUE;
191 gtk_adjustment_changed (adjustment);
193 gtk_adjustment_value_changed (adjustment);
196 /*** Virtual function implementations ***/
199 ev_view_finalize (GObject *object)
201 EvView *view = EV_VIEW (object);
206 ev_view_set_scroll_adjustments (view, NULL, NULL);
208 G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
212 ev_view_destroy (GtkObject *object)
214 EvView *view = EV_VIEW (object);
216 if (view->document) {
217 g_object_unref (view->document);
218 view->document = NULL;
220 if (view->pixbuf_cache) {
221 g_object_unref (view->pixbuf_cache);
222 view->pixbuf_cache = NULL;
224 ev_view_set_scroll_adjustments (view, NULL, NULL);
226 GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
230 ev_view_get_offsets (EvView *view, int *x_offset, int *y_offset)
232 EvDocument *document = view->document;
233 GtkWidget *widget = GTK_WIDGET (view);
234 int width, height, target_width, target_height;
237 g_return_if_fail (EV_IS_DOCUMENT (document));
239 ev_page_cache_get_size (view->page_cache,
244 ev_document_misc_get_page_border_size (width, height, &border);
246 *x_offset = view->spacing;
247 *y_offset = view->spacing;
248 target_width = width + border.left + border.right + view->spacing * 2;
249 target_height = height + border.top + border.bottom + view->spacing * 2;
250 *x_offset += MAX (0, (widget->allocation.width - target_width) / 2);
251 *y_offset += MAX (0, (widget->allocation.height - target_height) / 2);
255 view_rect_to_doc_rect (EvView *view, GdkRectangle *view_rect, GdkRectangle *doc_rect)
257 int x_offset, y_offset;
259 ev_view_get_offsets (view, &x_offset, &y_offset);
260 doc_rect->x = (view_rect->x - x_offset) / view->scale;
261 doc_rect->y = (view_rect->y - y_offset) / view->scale;
262 doc_rect->width = view_rect->width / view->scale;
263 doc_rect->height = view_rect->height / view->scale;
267 doc_rect_to_view_rect (EvView *view, GdkRectangle *doc_rect, GdkRectangle *view_rect)
269 int x_offset, y_offset;
271 ev_view_get_offsets (view, &x_offset, &y_offset);
272 view_rect->x = doc_rect->x * view->scale + x_offset;
273 view_rect->y = doc_rect->y * view->scale + y_offset;
274 view_rect->width = doc_rect->width * view->scale;
275 view_rect->height = doc_rect->height * view->scale;
279 /* Called by size_request to make sure we have appropriate jobs running.
282 ev_view_size_request (GtkWidget *widget,
283 GtkRequisition *requisition)
285 EvView *view = EV_VIEW (widget);
289 if (!GTK_WIDGET_REALIZED (widget))
292 if (!view->document) {
293 requisition->width = 1;
294 requisition->height = 1;
298 ev_page_cache_get_size (view->page_cache,
303 ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
307 ev_document_misc_get_page_border_size (width, height, &border);
309 if (view->width >= 0) {
310 requisition->width = 0;
312 requisition->width = width + border.left + border.right +
316 if (view->height >= 0) {
317 requisition->height = 0;
319 requisition->height = height + border.top + border.bottom +
325 ev_view_size_allocate (GtkWidget *widget,
326 GtkAllocation *allocation)
328 EvView *view = EV_VIEW (widget);
330 GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
332 view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
333 view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
335 if (GTK_WIDGET_REALIZED (widget)) {
336 gdk_window_resize (view->bin_window,
337 MAX (widget->allocation.width, widget->requisition.width),
338 MAX (widget->allocation.height, widget->requisition.height));
343 ev_view_realize (GtkWidget *widget)
345 EvView *view = EV_VIEW (widget);
346 GdkWindowAttr attributes;
348 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
351 attributes.window_type = GDK_WINDOW_CHILD;
352 attributes.wclass = GDK_INPUT_OUTPUT;
353 attributes.visual = gtk_widget_get_visual (widget);
354 attributes.colormap = gtk_widget_get_colormap (widget);
356 attributes.x = widget->allocation.x;
357 attributes.y = widget->allocation.y;
358 attributes.width = widget->allocation.width;
359 attributes.height = widget->allocation.height;
360 attributes.event_mask = 0;
362 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
364 GDK_WA_X | GDK_WA_Y |
367 gdk_window_set_user_data (widget->window, widget);
368 widget->style = gtk_style_attach (widget->style, widget->window);
369 gdk_window_set_background (widget->window, &widget->style->mid[widget->state]);
373 attributes.width = MAX (widget->allocation.width, widget->requisition.width);
374 attributes.height = MAX (widget->allocation.height, widget->requisition.height);
375 attributes.event_mask = GDK_EXPOSURE_MASK |
376 GDK_BUTTON_PRESS_MASK |
377 GDK_BUTTON_RELEASE_MASK |
380 GDK_POINTER_MOTION_MASK |
381 GDK_LEAVE_NOTIFY_MASK;
383 view->bin_window = gdk_window_new (widget->window,
385 GDK_WA_X | GDK_WA_Y |
388 gdk_window_set_user_data (view->bin_window, widget);
389 gdk_window_show (view->bin_window);
391 widget->style = gtk_style_attach (widget->style, view->bin_window);
392 gdk_window_set_background (view->bin_window, &widget->style->mid[widget->state]);
394 if (view->document) {
395 /* We can't get page size without a target, so we have to
396 * queue a size request at realization. Could be fixed
397 * with EvDocument changes to allow setting a GdkScreen
398 * without setting a target.
400 gtk_widget_queue_resize (widget);
405 ev_view_unrealize (GtkWidget *widget)
407 EvView *view = EV_VIEW (widget);
409 gdk_window_set_user_data (view->bin_window, NULL);
410 gdk_window_destroy (view->bin_window);
411 view->bin_window = NULL;
413 GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
417 ev_gdk_color_to_rgb (const GdkColor *color)
420 result = (0xff0000 | (color->red & 0xff00));
422 result |= ((color->green & 0xff00) | (color->blue >> 8));
427 draw_rubberband (GtkWidget *widget, GdkWindow *window,
428 const GdkRectangle *rect, guchar alpha)
432 GdkColor *fill_color_gdk;
434 int x_offset, y_offset;
436 ev_view_get_offsets (EV_VIEW (widget), &x_offset, &y_offset);
438 fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
439 fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
441 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
442 rect->width, rect->height);
443 gdk_pixbuf_fill (pixbuf, fill_color);
445 gdk_draw_pixbuf (window, NULL, pixbuf,
447 rect->x + x_offset, rect->y + y_offset,
448 rect->width, rect->height,
452 g_object_unref (pixbuf);
454 gc = gdk_gc_new (window);
455 gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
456 gdk_draw_rectangle (window, gc, FALSE,
457 rect->x + x_offset, rect->y + y_offset,
462 gdk_color_free (fill_color_gdk);
466 highlight_find_results (EvView *view)
468 EvDocumentFind *find;
471 g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document));
473 find = EV_DOCUMENT_FIND (view->document);
475 g_mutex_lock (EV_DOC_MUTEX);
476 results = ev_document_find_get_n_results (find);
477 g_mutex_unlock (EV_DOC_MUTEX);
479 for (i = 0; i < results; i++) {
480 GdkRectangle rectangle;
483 alpha = (i == view->find_result) ? 0x90 : 0x20;
484 g_mutex_lock (EV_DOC_MUTEX);
485 ev_document_find_get_result (find, i, &rectangle);
486 g_mutex_unlock (EV_DOC_MUTEX);
487 draw_rubberband (GTK_WIDGET (view), view->bin_window,
494 expose_bin_window (GtkWidget *widget,
495 GdkEventExpose *event)
497 EvView *view = EV_VIEW (widget);
501 int x_offset, y_offset;
502 GdkPixbuf *scaled_image;
503 GdkPixbuf *current_pixbuf;
505 if (view->document == NULL)
508 ev_view_get_offsets (view, &x_offset, &y_offset);
509 ev_page_cache_get_size (view->page_cache,
514 ev_document_misc_get_page_border_size (width, height, &border);
516 /* Paint the frame */
519 area.width = width + border.left + border.right;
520 area.height = height + border.top + border.bottom;
521 ev_document_misc_paint_one_page (view->bin_window, widget, &area, &border);
523 /* Render the document itself */
524 LOG ("Render area %d %d %d %d - Offset %d %d",
525 event->area.x, event->area.y,
526 event->area.width, event->area.height,
529 current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, view->current_page);
531 if (current_pixbuf == NULL)
533 else if (width == gdk_pixbuf_get_width (current_pixbuf) &&
534 height == gdk_pixbuf_get_height (current_pixbuf))
535 scaled_image = g_object_ref (current_pixbuf);
537 scaled_image = gdk_pixbuf_scale_simple (current_pixbuf,
541 gdk_draw_pixbuf (view->bin_window,
542 GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
545 area.x + border.left,
548 GDK_RGB_DITHER_NORMAL,
550 g_object_unref (scaled_image);
553 if (EV_IS_DOCUMENT_FIND (view->document)) {
554 highlight_find_results (view);
557 if (view->has_selection) {
558 GdkRectangle rubberband;
560 doc_rect_to_view_rect (view, &view->selection, &rubberband);
561 if (rubberband.width > 0 && rubberband.height > 0) {
562 draw_rubberband (widget, view->bin_window,
569 ev_view_expose_event (GtkWidget *widget,
570 GdkEventExpose *event)
572 EvView *view = EV_VIEW (widget);
574 if (event->window == view->bin_window)
575 expose_bin_window (widget, event);
577 return GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event (widget, event);
583 ev_view_select_all (EvView *ev_view)
585 GtkWidget *widget = GTK_WIDGET (ev_view);
586 GdkRectangle selection;
588 int x_offset, y_offset;
591 g_return_if_fail (EV_IS_VIEW (ev_view));
594 ev_view_get_offsets (ev_view, &x_offset, &y_offset);
595 ev_page_cache_get_size (ev_view->page_cache,
596 ev_view->current_page,
599 ev_document_misc_get_page_border_size (width, height, &border);
601 ev_view->has_selection = TRUE;
602 selection.x = x_offset + border.left;
603 selection.y = y_offset + border.top;
604 selection.width = width;
605 selection.height = height;
606 view_rect_to_doc_rect (ev_view, &selection, &ev_view->selection);
608 gtk_widget_queue_draw (widget);
612 ev_view_copy (EvView *ev_view)
614 GtkClipboard *clipboard;
615 GdkRectangle selection;
618 doc_rect_to_view_rect (ev_view, &ev_view->selection, &selection);
619 g_mutex_lock (EV_DOC_MUTEX);
620 text = ev_document_get_text (ev_view->document, &selection);
621 g_mutex_unlock (EV_DOC_MUTEX);
623 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
624 GDK_SELECTION_CLIPBOARD);
625 gtk_clipboard_set_text (clipboard, text, -1);
630 ev_view_primary_get_cb (GtkClipboard *clipboard,
631 GtkSelectionData *selection_data,
635 EvView *ev_view = EV_VIEW (data);
636 GdkRectangle selection;
639 doc_rect_to_view_rect (ev_view, &ev_view->selection, &selection);
640 g_mutex_lock (EV_DOC_MUTEX);
641 text = ev_document_get_text (ev_view->document, &selection);
642 g_mutex_unlock (EV_DOC_MUTEX);
643 gtk_selection_data_set_text (selection_data, text, -1);
647 ev_view_primary_clear_cb (GtkClipboard *clipboard,
650 EvView *ev_view = EV_VIEW (data);
652 ev_view->has_selection = FALSE;
656 ev_view_update_primary_selection (EvView *ev_view)
658 GtkClipboard *clipboard;
660 clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
661 GDK_SELECTION_PRIMARY);
663 if (ev_view->has_selection) {
664 if (!gtk_clipboard_set_with_owner (clipboard,
666 G_N_ELEMENTS (targets),
667 ev_view_primary_get_cb,
668 ev_view_primary_clear_cb,
670 ev_view_primary_clear_cb (clipboard, ev_view);
672 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
673 gtk_clipboard_clear (clipboard);
678 ev_view_button_press_event (GtkWidget *widget,
679 GdkEventButton *event)
681 EvView *view = EV_VIEW (widget);
683 if (!GTK_WIDGET_HAS_FOCUS (widget)) {
684 gtk_widget_grab_focus (widget);
687 view->pressed_button = event->button;
689 switch (event->button) {
691 if (view->has_selection) {
692 view->has_selection = FALSE;
693 gtk_widget_queue_draw (widget);
696 view->selection_start.x = event->x;
697 view->selection_start.y = event->y;
705 status_message_from_link (EvView *view, EvLink *link)
711 type = ev_link_get_link_type (link);
714 case EV_LINK_TYPE_TITLE:
715 if (ev_link_get_title (link))
716 msg = g_strdup (ev_link_get_title (link));
718 case EV_LINK_TYPE_PAGE:
719 page_label = ev_page_cache_get_page_label (view->page_cache, ev_link_get_page (link));
720 msg = g_strdup_printf (_("Go to page %s"), page_label);
723 case EV_LINK_TYPE_EXTERNAL_URI:
724 msg = g_strdup (ev_link_get_uri (link));
734 ev_view_set_status (EvView *view, const char *message)
736 g_return_if_fail (EV_IS_VIEW (view));
738 if (message != view->status) {
739 g_free (view->status);
740 view->status = g_strdup (message);
741 g_object_notify (G_OBJECT (view), "status");
746 ev_view_set_find_status (EvView *view, const char *message)
748 g_return_if_fail (EV_IS_VIEW (view));
750 g_free (view->find_status);
751 view->find_status = g_strdup (message);
752 g_object_notify (G_OBJECT (view), "find-status");
756 ev_view_create_invisible_cursor(void)
759 GdkColor black = { 0, 0, 0, 0 };
760 static char bits[] = { 0x00 };
762 empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
764 return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
768 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
770 GdkCursor *cursor = NULL;
774 if (view->cursor == new_cursor) {
778 widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
779 display = gtk_widget_get_display (widget);
780 view->cursor = new_cursor;
782 switch (new_cursor) {
783 case EV_VIEW_CURSOR_NORMAL:
784 gdk_window_set_cursor (widget->window, NULL);
786 case EV_VIEW_CURSOR_LINK:
787 cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
789 case EV_VIEW_CURSOR_WAIT:
790 cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
792 case EV_VIEW_CURSOR_HIDDEN:
793 cursor = ev_view_create_invisible_cursor ();
799 gdk_window_set_cursor (widget->window, cursor);
800 gdk_cursor_unref (cursor);
807 find_page_at_location (EvView *view,
817 ev_page_cache_get_size (view->page_cache,
821 ev_document_misc_get_page_border_size (width, height, &border);
823 x -= (border.left + view->spacing);
824 y -= (border.top + view->spacing);
826 if ((x < 0) || (y < 0) ||
827 (x >= width) || (y >= height)) {
831 *page = view->current_page;
832 *x_offset = (gint) x;
833 *y_offset = (gint) y;
837 get_link_at_location (EvView *view,
842 gint x_offset, y_offset;
845 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
849 link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
851 return ev_link_mapping_find (link_mapping, x_offset /view->scale, y_offset /view->scale);
856 ev_view_motion_notify_event (GtkWidget *widget,
857 GdkEventMotion *event)
859 EvView *view = EV_VIEW (widget);
861 if (view->pressed_button > 0) {
862 GdkRectangle selection;
864 view->has_selection = TRUE;
865 selection.x = MIN (view->selection_start.x, event->x);
866 selection.y = MIN (view->selection_start.y, event->y);
867 selection.width = ABS (view->selection_start.x - event->x) + 1;
868 selection.height = ABS (view->selection_start.y - event->y) + 1;
869 view_rect_to_doc_rect (view, &selection, &view->selection);
871 gtk_widget_queue_draw (widget);
872 } else if (view->document) {
875 link = get_link_at_location (view, event->x, event->y);
879 msg = status_message_from_link (view, link);
880 ev_view_set_status (view, msg);
881 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
884 ev_view_set_status (view, NULL);
885 if (view->cursor == EV_VIEW_CURSOR_LINK) {
886 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
895 ev_view_button_release_event (GtkWidget *widget,
896 GdkEventButton *event)
898 EvView *view = EV_VIEW (widget);
900 view->pressed_button = -1;
902 if (view->has_selection) {
903 ev_view_update_primary_selection (view);
904 } else if (view->document) {
907 link = get_link_at_location (view, event->x, event->y);
909 ev_view_go_to_link (view, link);
917 on_adjustment_value_changed (GtkAdjustment *adjustment,
920 view_update_adjustments (view);
924 set_scroll_adjustment (EvView *view,
925 GtkOrientation orientation,
926 GtkAdjustment *adjustment)
928 GtkAdjustment **to_set;
930 if (orientation == GTK_ORIENTATION_HORIZONTAL)
931 to_set = &view->hadjustment;
933 to_set = &view->vadjustment;
935 if (*to_set != adjustment) {
937 g_signal_handlers_disconnect_by_func (*to_set,
938 (gpointer) on_adjustment_value_changed,
940 g_object_unref (*to_set);
943 *to_set = adjustment;
944 view_set_adjustment_values (view, orientation);
947 g_object_ref (*to_set);
948 g_signal_connect (*to_set, "value_changed",
949 G_CALLBACK (on_adjustment_value_changed), view);
955 ev_view_set_scroll_adjustments (EvView *view,
956 GtkAdjustment *hadjustment,
957 GtkAdjustment *vadjustment)
959 set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
960 set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
962 view_update_adjustments (view);
966 add_scroll_binding (GtkBindingSet *binding_set,
968 GtkScrollType scroll,
971 guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
973 gtk_binding_entry_add_signal (binding_set, keyval, 0,
975 GTK_TYPE_SCROLL_TYPE, scroll,
976 G_TYPE_BOOLEAN, horizontal);
977 gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
979 GTK_TYPE_SCROLL_TYPE, scroll,
980 G_TYPE_BOOLEAN, horizontal);
984 ev_view_scroll_view (EvView *view,
985 GtkScrollType scroll,
988 if (scroll == GTK_SCROLL_PAGE_BACKWARD) {
989 ev_page_cache_prev_page (view->page_cache);
990 } else if (scroll == GTK_SCROLL_PAGE_FORWARD) {
991 ev_page_cache_next_page (view->page_cache);
993 GtkAdjustment *adjustment;
997 adjustment = view->hadjustment;
999 adjustment = view->vadjustment;
1002 value = adjustment->value;
1005 case GTK_SCROLL_STEP_BACKWARD:
1006 value -= adjustment->step_increment;
1008 case GTK_SCROLL_STEP_FORWARD:
1009 value += adjustment->step_increment;
1015 value = CLAMP (value, adjustment->lower,
1016 adjustment->upper - adjustment->page_size);
1018 gtk_adjustment_set_value (adjustment, value);
1023 ev_view_set_property (GObject *object,
1025 const GValue *value,
1032 case PROP_FIND_STATUS:
1038 ev_view_get_property (GObject *object,
1043 EvView *view = EV_VIEW (object);
1048 g_value_set_string (value, view->status);
1050 case PROP_FIND_STATUS:
1051 g_value_set_string (value, view->status);
1057 ev_view_class_init (EvViewClass *class)
1059 GObjectClass *object_class = G_OBJECT_CLASS (class);
1060 GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
1061 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
1062 GtkBindingSet *binding_set;
1064 object_class->finalize = ev_view_finalize;
1065 object_class->set_property = ev_view_set_property;
1066 object_class->get_property = ev_view_get_property;
1068 widget_class->expose_event = ev_view_expose_event;
1069 widget_class->button_press_event = ev_view_button_press_event;
1070 widget_class->motion_notify_event = ev_view_motion_notify_event;
1071 widget_class->button_release_event = ev_view_button_release_event;
1072 widget_class->size_request = ev_view_size_request;
1073 widget_class->size_allocate = ev_view_size_allocate;
1074 widget_class->realize = ev_view_realize;
1075 widget_class->unrealize = ev_view_unrealize;
1076 gtk_object_class->destroy = ev_view_destroy;
1078 class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
1079 class->scroll_view = ev_view_scroll_view;
1081 widget_class->set_scroll_adjustments_signal = g_signal_new ("set-scroll-adjustments",
1082 G_OBJECT_CLASS_TYPE (object_class),
1083 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1084 G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
1086 ev_marshal_VOID__OBJECT_OBJECT,
1088 GTK_TYPE_ADJUSTMENT,
1089 GTK_TYPE_ADJUSTMENT);
1091 g_signal_new ("scroll_view",
1092 G_TYPE_FROM_CLASS (object_class),
1093 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1094 G_STRUCT_OFFSET (EvViewClass, scroll_view),
1096 ev_marshal_VOID__ENUM_BOOLEAN,
1098 GTK_TYPE_SCROLL_TYPE,
1101 g_object_class_install_property (object_class,
1103 g_param_spec_string ("status",
1105 "The status message",
1109 g_object_class_install_property (object_class,
1111 g_param_spec_string ("find-status",
1112 "Find Status Message",
1113 "The find status message",
1117 binding_set = gtk_binding_set_by_class (class);
1119 add_scroll_binding (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
1120 add_scroll_binding (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE);
1121 add_scroll_binding (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE);
1122 add_scroll_binding (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE);
1124 add_scroll_binding (binding_set, GDK_Page_Up, GTK_SCROLL_PAGE_BACKWARD, FALSE);
1125 add_scroll_binding (binding_set, GDK_Page_Down, GTK_SCROLL_PAGE_FORWARD, FALSE);
1129 ev_view_init (EvView *view)
1131 GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
1135 view->current_page = 0;
1136 view->pressed_button = -1;
1137 view->cursor = EV_VIEW_CURSOR_NORMAL;
1141 update_find_status_message (EvView *view)
1145 // g_mutex_lock (EV_DOC_MUTEX);
1146 if (ev_document_get_page (view->document) == view->find_page) {
1149 // g_mutex_lock (EV_DOC_MUTEX);
1150 results = ev_document_find_get_n_results
1151 (EV_DOCUMENT_FIND (view->document));
1152 // g_mutex_unlock (EV_DOC_MUTEX);
1153 /* TRANS: Sometimes this could be better translated as
1154 "%d hit(s) on this page". Therefore this string
1155 contains plural cases. */
1156 message = g_strdup_printf (ngettext ("%d found on this page",
1157 "%d found on this page",
1163 g_mutex_lock (EV_DOC_MUTEX);
1164 percent = ev_document_find_get_progress
1165 (EV_DOCUMENT_FIND (view->document));
1166 g_mutex_unlock (EV_DOC_MUTEX);
1167 if (percent >= (1.0 - 1e-10)) {
1168 message = g_strdup (_("Not found"));
1170 message = g_strdup_printf (_("%3d%% remaining to search"),
1171 (int) ((1.0 - percent) * 100));
1175 // g_mutex_unlock (EV_DOC_MUTEX);
1177 ev_view_set_find_status (view, message);
1178 // g_free (message);
1184 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
1186 GtkWidget *widget = GTK_WIDGET (view);
1187 GtkAdjustment *adjustment;
1190 adjustment = view->vadjustment;
1192 if (rect->y < adjustment->value) {
1193 value = MAX (adjustment->lower, rect->y - MARGIN);
1194 gtk_adjustment_set_value (view->vadjustment, value);
1195 } else if (rect->y + rect->height >
1196 adjustment->value + widget->allocation.height) {
1197 value = MIN (adjustment->upper, rect->y + rect->height -
1198 widget->allocation.height + MARGIN);
1199 gtk_adjustment_set_value (view->vadjustment, value);
1202 adjustment = view->hadjustment;
1204 if (rect->x < adjustment->value) {
1205 value = MAX (adjustment->lower, rect->x - MARGIN);
1206 gtk_adjustment_set_value (view->hadjustment, value);
1207 } else if (rect->x + rect->height >
1208 adjustment->value + widget->allocation.width) {
1209 value = MIN (adjustment->upper, rect->x + rect->width -
1210 widget->allocation.width + MARGIN);
1211 gtk_adjustment_set_value (view->hadjustment, value);
1216 jump_to_find_result (EvView *view)
1218 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1222 g_mutex_lock (EV_DOC_MUTEX);
1223 n_results = ev_document_find_get_n_results (find);
1224 g_mutex_unlock (EV_DOC_MUTEX);
1226 if (n_results > view->find_result) {
1227 g_mutex_lock (EV_DOC_MUTEX);
1228 ev_document_find_get_result
1229 (find, view->find_result, &rect);
1230 g_mutex_unlock (EV_DOC_MUTEX);
1232 ensure_rectangle_is_visible (view, &rect);
1237 jump_to_find_page (EvView *view)
1241 n_pages = ev_page_cache_get_n_pages (view->page_cache);
1243 for (i = 0; i < n_pages; i++) {
1247 page = i + view->find_page;
1248 if (page >= n_pages) {
1249 page = page - n_pages;
1252 // g_mutex_lock (EV_DOC_MUTEX);
1253 has_results = ev_document_find_page_has_results
1254 (EV_DOCUMENT_FIND (view->document), page);
1255 if (has_results == -1) {
1256 view->find_page = page;
1258 } else if (has_results == 1) {
1259 ev_page_cache_set_current_page (view->page_cache, page);
1260 jump_to_find_result (view);
1267 find_changed_cb (EvDocument *document, int page, EvView *view)
1269 jump_to_find_page (view);
1270 jump_to_find_result (view);
1271 update_find_status_message (view);
1275 if (ev_document_get_page (document) == page) {
1276 gtk_widget_queue_draw (GTK_WIDGET (view));
1280 /*** Public API ***/
1285 return g_object_new (EV_TYPE_VIEW, NULL);
1289 job_finished_cb (EvPixbufCache *pixbuf_cache,
1292 gtk_widget_queue_draw (GTK_WIDGET (view));
1297 page_changed_cb (EvPageCache *page_cache,
1301 int old_page = view->current_page;
1302 int old_width, old_height;
1303 int new_width, new_height;
1305 if (old_page == new_page)
1308 ev_page_cache_get_size (page_cache,
1311 &old_width, &old_height);
1312 ev_page_cache_get_size (page_cache,
1315 &new_width, &new_height);
1317 if (view->cursor != EV_VIEW_CURSOR_HIDDEN) {
1318 //ev_view_set_cursor (view, EV_VIEW_CURSOR_WAIT);
1321 view->current_page = new_page;
1322 view->has_selection = FALSE;
1324 ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
1329 if (new_width != old_width || new_height != old_height)
1330 gtk_widget_queue_resize (GTK_WIDGET (view));
1332 gtk_widget_queue_draw (GTK_WIDGET (view));
1334 gtk_adjustment_set_value (view->vadjustment,
1335 view->vadjustment->lower);
1337 if (EV_IS_DOCUMENT_FIND (view->document)) {
1338 view->find_page = new_page;
1339 view->find_result = 0;
1340 update_find_status_message (view);
1345 ev_view_set_document (EvView *view,
1346 EvDocument *document)
1348 g_return_if_fail (EV_IS_VIEW (view));
1350 if (document != view->document) {
1351 if (view->document) {
1352 g_signal_handlers_disconnect_by_func (view->document,
1355 g_object_unref (view->document);
1356 view->page_cache = NULL;
1360 view->document = document;
1361 view->find_page = 0;
1362 view->find_result = 0;
1364 if (view->document) {
1365 g_object_ref (view->document);
1366 if (EV_IS_DOCUMENT_FIND (view->document)) {
1367 g_signal_connect (view->document,
1369 G_CALLBACK (find_changed_cb),
1372 view->page_cache = ev_document_get_page_cache (view->document);
1373 g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
1374 view->pixbuf_cache = ev_pixbuf_cache_new (view->document);
1375 g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
1378 gtk_widget_queue_resize (GTK_WIDGET (view));
1383 go_to_link (EvView *view, EvLink *link)
1389 type = ev_link_get_link_type (link);
1392 case EV_LINK_TYPE_TITLE:
1394 case EV_LINK_TYPE_PAGE:
1395 page = ev_link_get_page (link);
1396 ev_page_cache_set_current_page (view->page_cache, page);
1398 case EV_LINK_TYPE_EXTERNAL_URI:
1399 uri = ev_link_get_uri (link);
1400 gnome_vfs_url_show (uri);
1406 ev_view_go_to_link (EvView *view, EvLink *link)
1408 go_to_link (view, link);
1412 ev_view_zoom (EvView *view,
1419 scale = view->scale * factor;
1423 scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
1425 view->scale = scale;
1426 gtk_widget_queue_resize (GTK_WIDGET (view));
1430 ev_view_zoom_in (EvView *view)
1432 view->width = view->height = -1;
1433 ev_view_zoom (view, ZOOM_IN_FACTOR, TRUE);
1437 ev_view_zoom_out (EvView *view)
1439 view->width = view->height = -1;
1440 ev_view_zoom (view, ZOOM_OUT_FACTOR, TRUE);
1444 size_to_zoom_factor (EvView *view, int width, int height)
1446 int doc_width, doc_height;
1447 double scale, scale_w, scale_h;
1450 doc_width = doc_height = 0;
1451 scale = scale_w = scale_h = 1.0;
1452 ev_page_cache_get_size (view->page_cache,
1458 /* FIXME: The border size isn't constant. Ugh. Still, if we have extra
1459 * space, we just cut it from the border */
1460 ev_document_misc_get_page_border_size (doc_width, doc_height, &border);
1462 if (doc_width == 0 && doc_height == 0) {
1469 target_width = width - (view->spacing * 2 + border.left + border.right);
1470 scale = scale_w = (double)target_width * view->scale / doc_width;
1476 target_height = height - (view->spacing * 2 + border.top + border.bottom);
1477 scale = scale_h = (double)target_height * view->scale / doc_height;
1480 if (width >= 0 && height >= 0) {
1481 scale = (scale_w < scale_h) ? scale_w : scale_h;
1488 ev_view_set_size (EvView *view,
1494 if (!view->document)
1497 if (view->width != width ||
1498 view->height != height) {
1499 view->width = width;
1500 view->height = height;
1501 factor = size_to_zoom_factor (view, width, height);
1502 ev_view_zoom (view, factor, FALSE);
1503 gtk_widget_queue_resize (GTK_WIDGET (view));
1508 ev_view_get_status (EvView *view)
1510 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1512 return view->status;
1516 ev_view_get_find_status (EvView *view)
1518 g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1520 return view->find_status;
1524 ev_view_find_next (EvView *view)
1526 EvPageCache *page_cache;
1527 int n_results, n_pages;
1528 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1530 page_cache = ev_document_get_page_cache (view->document);
1531 g_mutex_lock (EV_DOC_MUTEX);
1532 n_results = ev_document_find_get_n_results (find);
1533 g_mutex_unlock (EV_DOC_MUTEX);
1535 n_pages = ev_page_cache_get_n_pages (page_cache);
1537 view->find_result++;
1539 if (view->find_result >= n_results) {
1540 view->find_result = 0;
1543 if (view->find_page >= n_pages) {
1544 view->find_page = 0;
1547 jump_to_find_page (view);
1549 jump_to_find_result (view);
1550 gtk_widget_queue_draw (GTK_WIDGET (view));
1555 ev_view_find_previous (EvView *view)
1557 int n_results, n_pages;
1558 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1559 EvPageCache *page_cache;
1561 page_cache = ev_document_get_page_cache (view->document);
1563 g_mutex_lock (EV_DOC_MUTEX);
1564 n_results = ev_document_find_get_n_results (find);
1565 g_mutex_unlock (EV_DOC_MUTEX);
1567 n_pages = ev_page_cache_get_n_pages (page_cache);
1569 view->find_result--;
1571 if (view->find_result < 0) {
1572 view->find_result = 0;
1575 if (view->find_page < 0) {
1576 view->find_page = n_pages - 1;
1579 jump_to_find_page (view);
1581 jump_to_find_result (view);
1582 gtk_widget_queue_draw (GTK_WIDGET (view));
1586 ev_view_hide_cursor (EvView *view)
1588 ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
1592 ev_view_show_cursor (EvView *view)
1594 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);