#include "ev-marshal.h"
#include "ev-view.h"
+#include "ev-utils.h"
#include "ev-selection.h"
#include "ev-document-find.h"
#include "ev-document-misc.h"
char *status;
char *find_status;
+ /* Scrolling */
+ GtkAdjustment *hadjustment;
+ GtkAdjustment *vadjustment;
+
gint scroll_x;
gint scroll_y;
DragInfo drag_info;
/* Selection */
+ gint motion_x;
+ gint motion_y;
+ guint selection_update_id;
+
EvViewSelectionMode selection_mode;
SelectionInfo selection_info;
- gboolean pressed_button;
+ int pressed_button;
EvViewCursor cursor;
- GtkAdjustment *hadjustment;
- GtkAdjustment *vadjustment;
-
EvPageCache *page_cache;
EvPixbufCache *pixbuf_cache;
gint *page,
gint *x_offset,
gint *y_offset);
+static void ev_view_queue_draw_page (EvView *view,
+ gint page);
/*** Hyperrefs ***/
static EvLink* get_link_at_location (EvView *view,
GdkEventButton *event);
static gboolean ev_view_leave_notify_event (GtkWidget *widget,
GdkEventCrossing *event);
+static void ev_view_style_set (GtkWidget *widget,
+ GtkStyle *old_style);
/*** Drawing ***/
static guint32 ev_gdk_color_to_rgb (const GdkColor *color);
GdkPoint *start,
GdkPoint *stop);
static void clear_selection (EvView *view);
+static void selection_free (EvViewSelection *selection);
static char* get_selected_text (EvView *ev_view);
static void ev_view_primary_get_cb (GtkClipboard *clipboard,
GtkSelectionData *selection_data,
*page = -1;
}
+static void
+ev_view_queue_draw_page (EvView *view,
+ gint page)
+{
+ /* FIXME: write */
+ gtk_widget_queue_draw (GTK_WIDGET (view));
+}
+
static gboolean
location_in_text (EvView *view,
gdouble x,
return FALSE;
}
+
+static gboolean
+selection_update_idle_cb (EvView *view)
+{
+ GdkPoint point;
+ point.x = view->motion_x;
+ point.y = view->motion_y;
+ compute_selections (view, &view->selection_info.start, &point);
+
+ view->selection_update_id = 0;
+ return FALSE;
+}
+
static gboolean
ev_view_motion_notify_event (GtkWidget *widget,
GdkEventMotion *event)
return FALSE;
if (view->pressed_button == 1) {
- GdkPoint point;
-
view->selection_info.in_selection = TRUE;
- point.x = event->x + view->scroll_x;
- point.y = event->y + view->scroll_y;
- compute_selections (view, &view->selection_info.start, &point);
+ view->motion_x = event->x + view->scroll_x;
+ view->motion_y = event->y + view->scroll_y;
+
+ /* Queue an idle to handle the motion. We do this because
+ * handling any selection events in the motion is probably going
+ * to be slower than new motion events reach us. This means that */
+
+ if (! view->selection_update_id)
+ view->selection_update_id = g_idle_add ((GSourceFunc)selection_update_idle_cb, view);
return TRUE;
} else if (view->pressed_button == 2) {
return FALSE;
}
+static void
+ev_view_style_set (GtkWidget *widget,
+ GtkStyle *old_style)
+{
+ if (EV_VIEW (widget)->pixbuf_cache)
+ ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
+
+ GTK_WIDGET_CLASS (ev_view_parent_class)->style_set (widget, old_style);
+}
+
+
/*** Drawing ***/
static guint32
if (current_pixbuf && view->selection_mode == EV_VIEW_SELECTION_TEXT && selection)
selection_pixbuf = ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache,
page,
- view->scale);
+ view->scale,
+ NULL);
if (current_pixbuf == NULL)
scaled_image = NULL;
widget_class->unrealize = ev_view_unrealize;
widget_class->scroll_event = ev_view_scroll_event;
widget_class->leave_notify_event = ev_view_leave_notify_event;
+ widget_class->style_set = ev_view_style_set;
gtk_object_class->destroy = ev_view_destroy;
class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
{
view->page_cache = ev_page_cache_get (view->document);
g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
- view->pixbuf_cache = ev_pixbuf_cache_new (view->document);
+ view->pixbuf_cache = ev_pixbuf_cache_new (GTK_WIDGET (view), view->document);
g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
}
void
ev_view_find_next (EvView *view)
{
- EvPageCache *page_cache;
int n_results, n_pages;
EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
- page_cache = ev_page_cache_get (view->document);
n_results = ev_document_find_get_n_results (find, view->current_page);
- n_pages = ev_page_cache_get_n_pages (page_cache);
+ n_pages = ev_page_cache_get_n_pages (view->page_cache);
view->find_result++;
*/
static void
merge_selection_region (EvView *view,
- GList *list)
+ GList *new_list)
{
+ GList *old_list;
+ GList *new_list_ptr, *old_list_ptr;
- /* FIXME: actually write... */
- clear_selection (view);
- gtk_widget_queue_draw (GTK_WIDGET (view));
+ /* Update the selection */
+ old_list = ev_pixbuf_cache_get_selection_list (view->pixbuf_cache);
+ g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
+ view->selection_info.selections = new_list;
+ ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, new_list);
+
+ new_list_ptr = new_list;
+ old_list_ptr = old_list;
+
+ while (new_list_ptr || old_list_ptr) {
+ EvViewSelection *old_sel, *new_sel;
+ int cur_page;
+ GdkRegion *region = NULL;
+
+ new_sel = (new_list_ptr) ? (new_list_ptr->data) : NULL;
+ old_sel = (old_list_ptr) ? (old_list_ptr->data) : NULL;
+
+ /* Assume that the lists are in order, and we run through them
+ * comparing them, one page at a time. We come out with the
+ * first page we see. */
+ if (new_sel && old_sel) {
+ if (new_sel->page < old_sel->page) {
+ new_list_ptr = new_list_ptr->next;
+ old_sel = NULL;
+ } else if (new_sel->page > old_sel->page) {
+ old_list_ptr = old_list_ptr->next;
+ new_sel = NULL;
+ } else {
+ new_list_ptr = new_list_ptr->next;
+ old_list_ptr = old_list_ptr->next;
+ }
+ } else if (new_sel) {
+ new_list_ptr = new_list_ptr->next;
+ } else if (old_sel) {
+ old_list_ptr = old_list_ptr->next;
+ }
+
+ g_assert (new_sel || old_sel);
+
+ /* is the page we're looking at on the screen?*/
+ cur_page = new_sel ? new_sel->page : old_sel->page;
+ if (cur_page < view->start_page || cur_page > view->end_page)
+ continue;
+
+ /* seed the cache with a new page. We are going to need the new
+ * region too. */
+ if (new_sel) {
+ GdkRegion *tmp_region = NULL;
+ ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache,
+ cur_page,
+ view->scale,
+ &tmp_region);
+ if (tmp_region) {
+ new_sel->covered_region = gdk_region_copy (tmp_region);
+ }
+ }
+
+ /* Now we figure out what needs redrawing */
+ if (old_sel && new_sel) {
+ if (old_sel->covered_region &&
+ new_sel->covered_region) {
+ /* We only want to redraw the areas that have
+ * changed, so we xor the old and new regions
+ * and redraw if it's different */
+ region = gdk_region_copy (old_sel->covered_region);
+ gdk_region_xor (region, new_sel->covered_region);
+ if (gdk_region_empty (region)) {
+ gdk_region_destroy (region);
+ region = NULL;
+ }
+ } else if (old_sel->covered_region) {
+ region = gdk_region_copy (old_sel->covered_region);
+ } else if (new_sel->covered_region) {
+ region = gdk_region_copy (new_sel->covered_region);
+ }
+ } else if (old_sel && !new_sel) {
+ if (old_sel->covered_region && !gdk_region_empty (old_sel->covered_region)) {
+ region = gdk_region_copy (old_sel->covered_region);
+ }
+ } else if (!old_sel && new_sel) {
+ if (new_sel->covered_region && !gdk_region_empty (new_sel->covered_region)) {
+ region = gdk_region_copy (new_sel->covered_region);
+ }
+ } else {
+ g_assert_not_reached ();
+ }
+
+ /* Redraw the damaged region! */
+ if (region) {
+ GdkRectangle page_area;
+ GtkBorder border;
+
+ get_page_extents (view, cur_page, &page_area, &border);
+ gdk_region_offset (region,
+ page_area.x + border.left - view->scroll_x,
+ page_area.y + border.top - view->scroll_y);
+ gdk_window_invalidate_region (GTK_WIDGET (view)->window, region, TRUE);
+ gdk_region_destroy (region);
+ }
+ }
- view->selection_info.selections = list;
- ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, list);
+ /* Free the old list, now that we're done with it. */
+ g_list_foreach (old_list, (GFunc) selection_free, NULL);
}
static void
static void
selection_free (EvViewSelection *selection)
{
+ if (selection->covered_region)
+ gdk_region_destroy (selection->covered_region);
g_free (selection);
}
https://www.fi.muni.cz/~kas/git / evince.git / blobdiff