PROP_FULLSCREEN,
PROP_PRESENTATION,
PROP_SIZING_MODE,
+ PROP_ZOOM,
};
enum {
#define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
#define MIN_SCALE 0.05409
-#define MAX_SCALE 6.0
+#define MAX_SCALE 4.0
typedef struct {
EvRectangle rect;
};
/*** Scrolling ***/
-static void view_update_adjustments (EvView *view);
static void ev_view_set_scroll_adjustments (EvView *view,
GtkAdjustment *hadjustment,
GtkAdjustment *vadjustment);
static void view_update_range_and_current_page (EvView *view);
-static void view_scroll_to_page (EvView *view,
- gint new_page);
static void set_scroll_adjustment (EvView *view,
GtkOrientation orientation,
GtkAdjustment *adjustment);
G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
static void
-view_update_adjustments (EvView *view)
+scroll_to_current_page (EvView *view, GtkOrientation orientation)
{
- int dx = 0, dy = 0;
-
- if (! GTK_WIDGET_REALIZED (view))
- return;
-
- if (view->hadjustment) {
- dx = view->scroll_x - (int) view->hadjustment->value;
- view->scroll_x = (int) view->hadjustment->value;
- } else {
- view->scroll_x = 0;
- }
-
- if (view->vadjustment) {
- dy = view->scroll_y - (int) view->vadjustment->value;
- view->scroll_y = (int) view->vadjustment->value;
- } else {
- view->scroll_y = 0;
- }
+ int max_width, max_height, n_rows;
+ get_bounding_box_size (view, &max_width, &max_height);
- if (view->pending_resize)
- gtk_widget_queue_draw (GTK_WIDGET (view));
- else
- gdk_window_scroll (GTK_WIDGET (view)->window, dx, dy);
-
+ if (orientation == GTK_ORIENTATION_VERTICAL) {
+ if (view->continuous) {
+ n_rows = view->dual_page ? view->current_page / 2 : view->current_page;
- if (view->document)
- view_update_range_and_current_page (view);
+ gtk_adjustment_clamp_page (view->vadjustment,
+ (max_height + view->spacing) * n_rows,
+ (max_height + view->spacing) * n_rows +
+ view->vadjustment->page_size);
+ } else {
+ gtk_adjustment_set_value (view->vadjustment,
+ view->vadjustment->lower);
+ }
+ } else {
+ if (view->dual_page) {
+ if (view->current_page % 2 == 0) {
+ gtk_adjustment_set_value (view->hadjustment,
+ view->hadjustment->lower);
+ } else {
+ gtk_adjustment_clamp_page (view->hadjustment,
+ view->hadjustment->lower +
+ max_width + view->spacing,
+ view->hadjustment->lower +
+ max_width + view->spacing +
+ view->hadjustment->page_size);
+ }
+ } else {
+ gtk_adjustment_set_value (view->hadjustment,
+ CLAMP (view->hadjustment->value,
+ view->hadjustment->lower,
+ view->hadjustment->upper -
+ view->hadjustment->page_size));
+ }
+ }
}
static void
gtk_adjustment_set_value (adjustment, (int)new_value);
break;
case SCROLL_TO_CURRENT_PAGE:
- if (orientation == GTK_ORIENTATION_VERTICAL) {
- view_scroll_to_page (view, view->current_page);
- }
+ scroll_to_current_page (view, orientation);
break;
case SCROLL_TO_CENTER:
- new_value = CLAMP (adjustment->upper * factor - adjustment->page_size * 0.5, 0, adjustment->upper - adjustment->page_size);
+ new_value = CLAMP (adjustment->upper * factor - adjustment->page_size * 0.5,
+ 0, adjustment->upper - adjustment->page_size);
gtk_adjustment_set_value (adjustment, (int)new_value);
break;
}
view->scale);
}
-static void
-view_scroll_to_page (EvView *view, gint new_page)
-{
- EvPageCache *page_cache = view->page_cache;
- int old_width, old_height;
- int new_width, new_height;
- int max_height, max_width, n_rows;
-
- ev_page_cache_get_size (page_cache,
- view->current_page,
- view->scale,
- &old_width, &old_height);
-
- ev_page_cache_get_size (page_cache,
- new_page,
- view->scale,
- &new_width, &new_height);
-
- compute_border (view, new_width, new_height, &(view->border));
-
- if (new_width != old_width || new_height != old_height)
- gtk_widget_queue_resize (GTK_WIDGET (view));
- else
- gtk_widget_queue_draw (GTK_WIDGET (view));
-
- get_bounding_box_size (view, &max_width, &max_height);
-
- if (view->vadjustment) {
- if (view->continuous) {
-
- n_rows = view->dual_page ? new_page / 2 : new_page;
-
- gtk_adjustment_clamp_page(view->vadjustment,
- (max_height + view->spacing) * n_rows,
- (max_height + view->spacing) * n_rows +
- view->vadjustment->page_size);
- } else {
- gtk_adjustment_set_value (view->vadjustment,
- view->vadjustment->lower);
- }
- }
-
- if (view->hadjustment) {
- if (view->dual_page) {
- if (new_page % 2 == 0) {
- gtk_adjustment_set_value (view->hadjustment,
- view->hadjustment->lower);
- } else {
- gtk_adjustment_clamp_page (view->hadjustment,
- view->hadjustment->lower +
- max_width + view->spacing,
- view->hadjustment->lower +
- max_width + view->spacing +
- view->hadjustment->page_size);
- }
- } else {
- gtk_adjustment_set_value (view->hadjustment,
- CLAMP (view->hadjustment->value,
- view->hadjustment->lower,
- view->hadjustment->upper -
- view->hadjustment->page_size));
- }
- }
-
- view->current_page = new_page;
- view_update_range_and_current_page (view);
-}
-
static void
set_scroll_adjustment (EvView *view,
GtkOrientation orientation,
set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
- view_update_adjustments (view);
+ on_adjustment_value_changed (NULL, view);
}
static void
y = view->spacing;
/* Adjust for extra allocation */
- x = x + MAX (0, widget->allocation.width - (width + view->spacing * 2))/2;
- y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
+ x = x + MAX (0, widget->allocation.width - (width + border->left + border->right + view->spacing * 2))/2;
+ y = y + MAX (0, widget->allocation.height - (height + border->top + border->bottom + view->spacing * 2))/2;
}
page_area->x = x;
ev_view_set_sizing_mode (view, EV_SIZING_FREE);
- if ((event->direction == GDK_SCROLL_UP ||
- event->direction == GDK_SCROLL_LEFT) &&
- ev_view_can_zoom_in (view)) {
- ev_view_zoom_in (view);
- } else if (ev_view_can_zoom_out (view)) {
- ev_view_zoom_out (view);
- }
-
+ if (event->direction == GDK_SCROLL_UP ||
+ event->direction == GDK_SCROLL_LEFT) {
+ if (ev_view_can_zoom_in (view)) {
+ ev_view_zoom_in (view);
+ }
+ } else {
+ if (ev_view_can_zoom_out (view)) {
+ ev_view_zoom_out (view);
+ }
+ }
return TRUE;
}
GdkRectangle real_page_area;
g_assert (view->document);
+ if (! gdk_rectangle_intersect (page_area, expose_area, &overlap))
+ return;
ev_page_cache_get_size (view->page_cache,
page, view->scale,
&width, &height);
-
/* Render the document itself */
real_page_area = *page_area;
real_page_area.width -= (border->left + border->right);
real_page_area.height -= (border->top + border->bottom);
- if (! gdk_rectangle_intersect (&real_page_area, expose_area, &overlap))
- return;
-
ev_document_misc_paint_one_page (GTK_WIDGET(view)->window,
GTK_WIDGET (view),
page_area, border);
- current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, page);
+ if (gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) {
+ current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, page);
- if (current_pixbuf == NULL)
- scaled_image = NULL;
- else if (width == gdk_pixbuf_get_width (current_pixbuf) &&
- height == gdk_pixbuf_get_height (current_pixbuf))
- scaled_image = g_object_ref (current_pixbuf);
- else
- /* FIXME: We don't want to scale the whole area, just the right
- * area of it */
- scaled_image = gdk_pixbuf_scale_simple (current_pixbuf,
- width, height,
- GDK_INTERP_NEAREST);
-
- if (scaled_image) {
- gdk_draw_pixbuf (GTK_WIDGET(view)->window,
- GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
- scaled_image,
- overlap.x - real_page_area.x,
- overlap.y - real_page_area.y,
- overlap.x, overlap.y,
- overlap.width, overlap.height,
- GDK_RGB_DITHER_NORMAL,
- 0, 0);
- g_object_unref (scaled_image);
+ if (current_pixbuf == NULL)
+ scaled_image = NULL;
+ else if (width == gdk_pixbuf_get_width (current_pixbuf) &&
+ height == gdk_pixbuf_get_height (current_pixbuf))
+ scaled_image = g_object_ref (current_pixbuf);
+ else
+ /* FIXME: We don't want to scale the whole area, just the right
+ * area of it */
+ scaled_image = gdk_pixbuf_scale_simple (current_pixbuf,
+ width, height,
+ GDK_INTERP_NEAREST);
+
+ if (scaled_image) {
+ gdk_draw_pixbuf (GTK_WIDGET(view)->window,
+ GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
+ scaled_image,
+ overlap.x - real_page_area.x,
+ overlap.y - real_page_area.y,
+ overlap.x, overlap.y,
+ overlap.width, overlap.height,
+ GDK_RGB_DITHER_NORMAL,
+ 0, 0);
+ g_object_unref (scaled_image);
+ }
}
}
case PROP_SIZING_MODE:
ev_view_set_sizing_mode (view, g_value_get_enum (value));
break;
+ case PROP_ZOOM:
+ ev_view_set_zoom (view, g_value_get_double (value), FALSE);
+ break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
case PROP_SIZING_MODE:
g_value_set_enum (value, view->sizing_mode);
break;
+ case PROP_ZOOM:
+ g_value_set_double (value, view->scale);
+ break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
EV_SIZING_FIT_WIDTH,
G_PARAM_READWRITE));
+ g_object_class_install_property (object_class,
+ PROP_ZOOM,
+ g_param_spec_double ("zoom",
+ "Zoom factor",
+ "Zoom factor",
+ MIN_SCALE,
+ MAX_SCALE,
+ 1.0,
+ G_PARAM_READWRITE));
+
binding_set = gtk_binding_set_by_class (class);
add_scroll_binding_keypad (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE);
{
GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
- view->spacing = 10;
+ view->spacing = 5;
view->scale = 1.0;
view->current_page = 0;
view->pressed_button = -1;
EvView *view)
{
if (view->current_page != new_page) {
-
- if (view->pending_scroll != SCROLL_TO_CURRENT_PAGE) {
- /* Should scroll right now */
- view_scroll_to_page (view, new_page);
- } else {
- /* We'll scroll to new page on allocate */
- view->current_page = new_page;
- }
+
+ view->current_page = new_page;
+ view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
+ gtk_widget_queue_resize (GTK_WIDGET (view));
if (EV_IS_DOCUMENT_FIND (view->document)) {
view->find_page = new_page;
static void on_adjustment_value_changed (GtkAdjustment *adjustment,
EvView *view)
{
- view_update_adjustments (view);
-}
+ int dx = 0, dy = 0;
+
+ if (! GTK_WIDGET_REALIZED (view))
+ return;
+
+ if (view->hadjustment) {
+ dx = view->scroll_x - (int) view->hadjustment->value;
+ view->scroll_x = (int) view->hadjustment->value;
+ } else {
+ view->scroll_x = 0;
+ }
+
+ if (view->vadjustment) {
+ dy = view->scroll_y - (int) view->vadjustment->value;
+ view->scroll_y = (int) view->vadjustment->value;
+ } else {
+ view->scroll_y = 0;
+ }
+
+
+ if (view->pending_resize)
+ gtk_widget_queue_draw (GTK_WIDGET (view));
+ else
+ gdk_window_scroll (GTK_WIDGET (view)->window, dx, dy);
+
+
+ if (view->document)
+ view_update_range_and_current_page (view);}
GtkWidget*
ev_view_new (void)
view);
}
view->page_cache = ev_document_get_page_cache (view->document);
- view->pending_scroll = SCROLL_TO_CURRENT_PAGE;
g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
view->pixbuf_cache = ev_pixbuf_cache_new (view->document);
g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
if (ABS (view->scale - scale) < EPSILON)
return;
+
view->scale = scale;
view->pending_resize = TRUE;
-
+
gtk_widget_queue_resize (GTK_WIDGET (view));
+
+ g_object_notify (G_OBJECT (view), "zoom");
}
double
https://www.fi.muni.cz/~kas/git / evince.git / blobdiff