* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Cody Russell <crussell@canonical.com>
* Alexander Larsson <alexl@redhat.com>
*/
+#include "config.h"
+
#include "gtkoffscreenwindow.h"
-#include "gtkalias.h"
+#include "gtkwidgetprivate.h"
+#include "gtkcontainerprivate.h"
+#include "gtkprivate.h"
/**
* SECTION:gtkoffscreenwindow
- * @short_description: A toplevel container widget used to manage offscreen
- * rendering of child widgets.
+ * @short_description: A toplevel to manage offscreen rendering of child widgets
* @title: GtkOffscreenWindow
*
- * #GtkOffscreenWindow is strictly intended to be used for obtaining
+ * GtkOffscreenWindow is strictly intended to be used for obtaining
* snapshots of widgets that are not part of a normal widget hierarchy.
- * It differs from gtk_widget_get_snapshot() in that the widget you
- * want to get a snapshot of need not be displayed on the user's screen
- * as a part of a widget hierarchy. However, since #GtkOffscreenWindow
- * is a toplevel widget you cannot obtain snapshots of a full window
- * with it since you cannot pack a toplevel widget in another toplevel.
+ * Since #GtkOffscreenWindow is a toplevel widget you cannot obtain
+ * snapshots of a full window with it since you cannot pack a toplevel
+ * widget in another toplevel.
*
* The idea is to take a widget and manually set the state of it,
- * add it to a #GtkOffscreenWindow and then retrieve the snapshot
- * as a #GdkPixmap or #GdkPixbuf.
+ * add it to a GtkOffscreenWindow and then retrieve the snapshot
+ * as a #cairo_surface_t or #GdkPixbuf.
*
- * #GtkOffscreenWindow derives from #GtkWindow only as an implementation
+ * GtkOffscreenWindow derives from #GtkWindow only as an implementation
* detail. Applications should not use any API specific to #GtkWindow
* to operate on this object. It should be treated as a #GtkBin that
* has no parent widget.
*
- * When contained offscreen widgets are redrawn, #GtkOffscreenWindow
+ * When contained offscreen widgets are redrawn, GtkOffscreenWindow
* will emit a #GtkWidget::damage-event signal.
*/
G_DEFINE_TYPE (GtkOffscreenWindow, gtk_offscreen_window, GTK_TYPE_WINDOW);
static void
-gtk_offscreen_window_size_request (GtkWidget *widget,
- GtkRequisition *requisition)
+gtk_offscreen_window_get_preferred_width (GtkWidget *widget,
+ gint *minimum,
+ gint *natural)
{
GtkBin *bin = GTK_BIN (widget);
+ GtkWidget *child;
gint border_width;
- gint default_width, default_height;
+ gint default_width;
border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
- requisition->width = border_width * 2;
- requisition->height = border_width * 2;
+ *minimum = border_width * 2;
+ *natural = border_width * 2;
+
+ child = gtk_bin_get_child (bin);
- if (bin->child && gtk_widget_get_visible (bin->child))
+ if (child != NULL && gtk_widget_get_visible (child))
{
- GtkRequisition child_req;
+ gint child_min, child_nat;
- gtk_widget_size_request (bin->child, &child_req);
+ gtk_widget_get_preferred_width (child, &child_min, &child_nat);
- requisition->width += child_req.width;
- requisition->height += child_req.height;
+ *minimum += child_min;
+ *natural += child_nat;
}
gtk_window_get_default_size (GTK_WINDOW (widget),
- &default_width, &default_height);
- if (default_width > 0)
- requisition->width = default_width;
+ &default_width, NULL);
- if (default_height > 0)
- requisition->height = default_height;
+ *minimum = MAX (*minimum, default_width);
+ *natural = MAX (*natural, default_width);
+}
+
+static void
+gtk_offscreen_window_get_preferred_height (GtkWidget *widget,
+ gint *minimum,
+ gint *natural)
+{
+ GtkBin *bin = GTK_BIN (widget);
+ GtkWidget *child;
+ gint border_width;
+ gint default_height;
+
+ border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
+
+ *minimum = border_width * 2;
+ *natural = border_width * 2;
+
+ child = gtk_bin_get_child (bin);
+
+ if (child != NULL && gtk_widget_get_visible (child))
+ {
+ gint child_min, child_nat;
+
+ gtk_widget_get_preferred_height (child, &child_min, &child_nat);
+
+ *minimum += child_min;
+ *natural += child_nat;
+ }
+
+ gtk_window_get_default_size (GTK_WINDOW (widget),
+ NULL, &default_height);
+
+ *minimum = MAX (*minimum, default_height);
+ *natural = MAX (*natural, default_height);
}
static void
GtkAllocation *allocation)
{
GtkBin *bin = GTK_BIN (widget);
+ GtkWidget *child;
gint border_width;
- widget->allocation = *allocation;
+ gtk_widget_set_allocation (widget, allocation);
border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
- if (GTK_WIDGET_REALIZED (widget))
- gdk_window_move_resize (widget->window,
+ if (gtk_widget_get_realized (widget))
+ gdk_window_move_resize (gtk_widget_get_window (widget),
allocation->x,
allocation->y,
allocation->width,
allocation->height);
- if (bin->child && gtk_widget_get_visible (bin->child))
+ child = gtk_bin_get_child (bin);
+
+ if (child != NULL && gtk_widget_get_visible (child))
{
GtkAllocation child_alloc;
child_alloc.width = allocation->width - 2 * border_width;
child_alloc.height = allocation->height - 2 * border_width;
- gtk_widget_size_allocate (bin->child, &child_alloc);
+ gtk_widget_size_allocate (child, &child_alloc);
}
gtk_widget_queue_draw (widget);
static void
gtk_offscreen_window_realize (GtkWidget *widget)
{
+ GtkAllocation allocation;
GtkBin *bin;
+ GtkWidget *child;
+ GdkWindow *window;
GdkWindowAttr attributes;
gint attributes_mask;
- gint border_width;
bin = GTK_BIN (widget);
- GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
+ gtk_widget_set_realized (widget, TRUE);
- border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
+ gtk_widget_get_allocation (widget, &allocation);
- attributes.x = widget->allocation.x;
- attributes.y = widget->allocation.y;
- attributes.width = widget->allocation.width;
- attributes.height = widget->allocation.height;
+ attributes.x = allocation.x;
+ attributes.y = allocation.y;
+ attributes.width = allocation.width;
+ attributes.height = allocation.height;
attributes.window_type = GDK_WINDOW_OFFSCREEN;
attributes.event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
attributes.visual = gtk_widget_get_visual (widget);
- attributes.colormap = gtk_widget_get_colormap (widget);
attributes.wclass = GDK_INPUT_OUTPUT;
- attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
-
- widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
- &attributes, attributes_mask);
- gdk_window_set_user_data (widget->window, widget);
+ attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
- if (bin->child)
- gtk_widget_set_parent_window (bin->child, widget->window);
+ window = gdk_window_new (gtk_widget_get_parent_window (widget),
+ &attributes, attributes_mask);
+ gtk_widget_set_window (widget, window);
+ gtk_widget_register_window (widget, window);
- widget->style = gtk_style_attach (widget->style, widget->window);
+ child = gtk_bin_get_child (bin);
+ if (child)
+ gtk_widget_set_parent_window (child, window);
- gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
+ gtk_style_context_set_background (gtk_widget_get_style_context (widget),
+ window);
}
static void
GtkAllocation allocation = { 0, 0 };
GtkRequisition requisition;
- gtk_widget_size_request (widget, &requisition);
+ gtk_widget_get_preferred_size (widget, &requisition, NULL);
allocation.width = requisition.width;
allocation.height = requisition.height;
{
gtk_widget_child_focus (widget, dir);
- if (!GTK_CONTAINER (widget)->focus_child)
+ if (!gtk_container_get_focus_child (GTK_CONTAINER (widget)))
gtk_window_set_focus (GTK_WINDOW (widget), NULL);
}
gtk_offscreen_window_show (GtkWidget *widget)
{
gboolean need_resize;
- GtkContainer *container;
- GTK_WIDGET_SET_FLAGS (widget, GTK_VISIBLE);
+ _gtk_widget_set_visible_flag (widget, TRUE);
- container = GTK_CONTAINER (widget);
- need_resize = container->need_resize || !GTK_WIDGET_REALIZED (widget);
- container->need_resize = FALSE;
+ need_resize = _gtk_widget_get_alloc_needed (widget) || !gtk_widget_get_realized (widget);
if (need_resize)
gtk_offscreen_window_resize (widget);
static void
gtk_offscreen_window_hide (GtkWidget *widget)
{
- GTK_WIDGET_UNSET_FLAGS (widget, GTK_VISIBLE);
+ _gtk_widget_set_visible_flag (widget, FALSE);
gtk_widget_unmap (widget);
}
widget_class->realize = gtk_offscreen_window_realize;
widget_class->show = gtk_offscreen_window_show;
widget_class->hide = gtk_offscreen_window_hide;
- widget_class->size_request = gtk_offscreen_window_size_request;
+ widget_class->get_preferred_width = gtk_offscreen_window_get_preferred_width;
+ widget_class->get_preferred_height = gtk_offscreen_window_get_preferred_height;
widget_class->size_allocate = gtk_offscreen_window_size_allocate;
container_class->check_resize = gtk_offscreen_window_check_resize;
* gtk_offscreen_window_new:
*
* Creates a toplevel container widget that is used to retrieve
- * snapshots of widgets without showing them on the screen. For
- * widgets that are on the screen and part of a normal widget
- * hierarchy, gtk_widget_get_snapshot() can be used instead.
+ * snapshots of widgets without showing them on the screen.
*
* Return value: A pointer to a #GtkWidget
*
}
/**
- * gtk_offscreen_window_get_pixmap:
+ * gtk_offscreen_window_get_surface:
* @offscreen: the #GtkOffscreenWindow contained widget.
*
* Retrieves a snapshot of the contained widget in the form of
- * a #GdkPixmap. If you need to keep this around over window
+ * a #cairo_surface_t. If you need to keep this around over window
* resizes then you should add a reference to it.
*
- * Returns: A #GdkPixmap pointer to the offscreen pixmap, or %NULL.
+ * Returns: (transfer none): A #cairo_surface_t pointer to the offscreen
+ * surface, or %NULL.
*
* Since: 2.20
*/
-GdkPixmap *
-gtk_offscreen_window_get_pixmap (GtkOffscreenWindow *offscreen)
+cairo_surface_t *
+gtk_offscreen_window_get_surface (GtkOffscreenWindow *offscreen)
{
g_return_val_if_fail (GTK_IS_OFFSCREEN_WINDOW (offscreen), NULL);
- return gdk_offscreen_window_get_pixmap (GTK_WIDGET (offscreen)->window);
+ return gdk_offscreen_window_get_surface (gtk_widget_get_window (GTK_WIDGET (offscreen)));
}
/**
* and the application should unreference it once it is no longer
* needed.
*
- * Returns: A #GdkPixbuf pointer, or %NULL.
+ * Returns: (transfer full): A #GdkPixbuf pointer, or %NULL.
*
* Since: 2.20
*/
GdkPixbuf *
gtk_offscreen_window_get_pixbuf (GtkOffscreenWindow *offscreen)
{
- GdkPixmap *pixmap = NULL;
+ cairo_surface_t *surface;
GdkPixbuf *pixbuf = NULL;
+ GdkWindow *window;
g_return_val_if_fail (GTK_IS_OFFSCREEN_WINDOW (offscreen), NULL);
- pixmap = gdk_offscreen_window_get_pixmap (GTK_WIDGET (offscreen)->window);
+ window = gtk_widget_get_window (GTK_WIDGET (offscreen));
+ surface = gdk_offscreen_window_get_surface (window);
- if (pixmap != NULL)
+ if (surface != NULL)
{
- gint width, height;
-
- gdk_drawable_get_size (pixmap, &width, &height);
-
- pixbuf = gdk_pixbuf_get_from_drawable (NULL, pixmap, NULL,
- 0, 0, 0, 0,
- width, height);
+ pixbuf = gdk_pixbuf_get_from_surface (surface,
+ 0, 0,
+ gdk_window_get_width (window),
+ gdk_window_get_height (window));
}
return pixbuf;
}
-
-#define __GTK_OFFSCREEN_WINDOW_C__
-#include "gtkaliasdef.c"
projects / ~andy / gtk / blobdiff