return gdk_surface_has_impl (surface);
}
-static void
-remove_sibling_overlapped_area (GdkSurface *surface,
- cairo_region_t *region)
-{
- GdkSurface *parent;
- GdkSurface *sibling;
- cairo_region_t *child_region;
- GdkRectangle r;
- GList *l;
-
- parent = surface->parent;
-
- if (gdk_surface_is_toplevel (surface))
- return;
-
- /* Convert from from surface coords to parent coords */
- cairo_region_translate (region, surface->x, surface->y);
-
- for (l = parent->children; l; l = l->next)
- {
- sibling = l->data;
-
- if (sibling == surface)
- break;
-
- if (!GDK_SURFACE_IS_MAPPED (sibling) || sibling->input_only)
- continue;
-
- r.x = sibling->x;
- r.y = sibling->y;
- r.width = sibling->width;
- r.height = sibling->height;
-
- child_region = cairo_region_create_rectangle (&r);
-
- cairo_region_subtract (region, child_region);
- cairo_region_destroy (child_region);
- }
-
- remove_sibling_overlapped_area (parent, region);
-
- /* Convert back to surface coords */
- cairo_region_translate (region, -surface->x, -surface->y);
-}
-
static void
remove_child_area (GdkSurface *surface,
gboolean for_input,
gboolean recalculate_clip,
gboolean recalculate_children)
{
- GdkRectangle r;
GList *l;
GdkSurface *child;
- cairo_region_t *new_clip;
- gboolean clip_region_changed;
gboolean abs_pos_changed;
int old_abs_x, old_abs_y;
private->abs_x != old_abs_x ||
private->abs_y != old_abs_y;
- /* Update clip region based on:
- * parent clip
- * surface size/position
- */
- clip_region_changed = FALSE;
- if (recalculate_clip)
- {
- if (private->viewable)
- {
- /* Calculate visible region (sans children) in parent surface coords */
- r.x = private->x;
- r.y = private->y;
- r.width = private->width;
- r.height = private->height;
- new_clip = cairo_region_create_rectangle (&r);
-
- if (!gdk_surface_is_toplevel (private))
- cairo_region_intersect (new_clip, private->parent->clip_region);
-
- /* Convert from parent coords to surface coords */
- cairo_region_translate (new_clip, -private->x, -private->y);
- }
- else
- new_clip = cairo_region_create ();
-
- if (private->clip_region == NULL ||
- !cairo_region_equal (private->clip_region, new_clip))
- clip_region_changed = TRUE;
-
- if (private->clip_region)
- cairo_region_destroy (private->clip_region);
- private->clip_region = new_clip;
- }
-
/* Update all children, recursively */
- if ((abs_pos_changed || clip_region_changed || recalculate_children))
+ if ((abs_pos_changed || recalculate_children))
{
for (l = private->children; l; l = l->next)
{
* Except if recalculate_children is set to force child updates
*/
recompute_visible_regions_internal (child,
- recalculate_clip && (clip_region_changed || recalculate_children),
+ recalculate_clip && recalculate_children,
FALSE);
}
}
surface_remove_from_pointer_info (surface, display);
- if (surface->clip_region)
- {
- cairo_region_destroy (surface->clip_region);
- surface->clip_region = NULL;
- }
-
g_object_notify_by_pspec (G_OBJECT (surface), properties[PROP_STATE]);
}
break;
needs_surface = impl_class->begin_paint (surface);
surface->current_paint.region = cairo_region_copy (region);
- cairo_region_intersect (surface->current_paint.region, surface->clip_region);
cairo_region_get_extents (surface->current_paint.region, &clip_box);
surface_content = gdk_surface_get_content (surface);
}
else
{
- region = cairo_region_copy (surface->clip_region);
+ region = cairo_region_create_rectangle (&(cairo_rectangle_int_t) { 0, 0, surface->width, surface->height });
}
return region;
_gdk_surface_process_updates_recurse (GdkSurface *surface,
cairo_region_t *expose_region)
{
- cairo_region_t *clipped_expose_region;
GdkEvent *event;
if (surface->destroyed)
return;
- clipped_expose_region = cairo_region_copy (expose_region);
-
- cairo_region_intersect (clipped_expose_region, surface->clip_region);
-
- if (cairo_region_is_empty (clipped_expose_region))
- goto out;
-
/* Paint the surface before the children, clipped to the surface region */
event = gdk_event_new (GDK_EXPOSE);
event->any.surface = g_object_ref (surface);
event->any.send_event = FALSE;
- event->expose.region = cairo_region_reference (clipped_expose_region);
+ event->expose.region = cairo_region_reference (expose_region);
_gdk_event_emit (event);
gdk_event_free (event);
-
- out:
- cairo_region_destroy (clipped_expose_region);
}
/* Process and remove any invalid area on the native surface by creating
impl_class = GDK_SURFACE_IMPL_GET_CLASS (surface->impl);
- /* Clip to part visible in impl surface */
- cairo_region_intersect (expose_region, surface->clip_region);
-
impl_class->process_updates_recurse (surface, expose_region);
gdk_surface_append_old_updated_area (surface, surface->active_update_area);
gdk_surface_invalidate_full (surface, region);
}
-
-/**
- * gdk_surface_get_update_area:
- * @surface: a #GdkSurface
- *
- * Transfers ownership of the update area from @surface to the caller
- * of the function. That is, after calling this function, @surface will
- * no longer have an invalid/dirty region; the update area is removed
- * from @surface and handed to you. If a surface has no update area,
- * gdk_surface_get_update_area() returns %NULL. You are responsible for
- * calling cairo_region_destroy() on the returned region if it’s non-%NULL.
- *
- * Returns: the update area for @surface
- **/
-cairo_region_t *
-gdk_surface_get_update_area (GdkSurface *surface)
-{
- GdkSurface *impl_surface;
- cairo_region_t *tmp_region, *to_remove;
-
- g_return_val_if_fail (GDK_IS_SURFACE (surface), NULL);
-
- impl_surface = gdk_surface_get_impl_surface (surface);
-
- if (impl_surface->update_area)
- {
- tmp_region = cairo_region_copy (surface->clip_region);
- /* Convert to impl coords */
- cairo_region_translate (tmp_region, surface->abs_x, surface->abs_y);
- cairo_region_intersect (tmp_region, impl_surface->update_area);
-
- if (cairo_region_is_empty (tmp_region))
- {
- cairo_region_destroy (tmp_region);
- return NULL;
- }
- else
- {
- /* Convert from impl coords */
- cairo_region_translate (tmp_region, -surface->abs_x, -surface->abs_y);
-
- /* Don't remove any update area that is overlapped by sibling surfaces
- or child surfaces as these really need to be repainted independently of this surface. */
- to_remove = cairo_region_copy (tmp_region);
-
- remove_child_area (surface, FALSE, to_remove);
- remove_sibling_overlapped_area (surface, to_remove);
-
- /* Remove from update_area */
- cairo_region_translate (to_remove, surface->abs_x, surface->abs_y);
- cairo_region_subtract (impl_surface->update_area, to_remove);
-
- cairo_region_destroy (to_remove);
-
- if (cairo_region_is_empty (impl_surface->update_area))
- {
- cairo_region_destroy (impl_surface->update_area);
- impl_surface->update_area = NULL;
-
- gdk_surface_remove_update_surface ((GdkSurface *)impl_surface);
- }
-
- return tmp_region;
- }
- }
- else
- return NULL;
-}
-
/**
* _gdk_surface_clear_update_area:
* @surface: a #GdkSurface.
!gdk_surface_is_toplevel (surface) &&
gdk_surface_is_viewable (surface) &&
!surface->input_only)
- gdk_surface_invalidate_region_full (surface, surface->clip_region, TRUE);
+ gdk_surface_invalidate_rect_full (surface, NULL, TRUE);
}
static void
gint width,
gint height)
{
- cairo_region_t *old_region, *new_region;
GdkSurfaceImplClass *impl_class;
- gboolean expose;
gboolean is_resize;
- expose = FALSE;
- old_region = NULL;
-
is_resize = (width != -1) || (height != -1);
- if (gdk_surface_is_viewable (surface) &&
- !surface->input_only)
- {
- expose = TRUE;
- old_region = cairo_region_copy (surface->clip_region);
- }
-
impl_class = GDK_SURFACE_IMPL_GET_CLASS (surface->impl);
impl_class->move_resize (surface, with_move, x, y, width, height);
/* Avoid recomputing for pure toplevel moves, for performance reasons */
if (is_resize)
recompute_visible_regions (surface, FALSE);
-
- if (expose)
- {
- new_region = cairo_region_copy (surface->clip_region);
-
- /* This is the newly exposed area (due to any resize),
- * X will expose it, but lets do that without the roundtrip
- */
- cairo_region_subtract (new_region, old_region);
- gdk_surface_invalidate_region_full (surface, new_region, TRUE);
-
- cairo_region_destroy (old_region);
- cairo_region_destroy (new_region);
- }
}
projects / gtk4.git / commitdiff