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/*
* Copyright (C) 2006 OpenedHand Ltd.
*
* OpenedHand Widget Library Video Widget - A GStreamer video GTK+ widget
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Author: Jorn Baayen <jorn@openedhand.com>
*/
#include "owl-overlay-bin.h"
G_DEFINE_TYPE (OwlOverlayBin,
owl_overlay_bin,
GTK_TYPE_BIN);
static void
owl_overlay_bin_init (OwlOverlayBin *overlay_bin)
{
/**
* We do have our own GdkWindow.
**/
GTK_WIDGET_UNSET_FLAGS (overlay_bin, GTK_NO_WINDOW);
}
static void
owl_overlay_bin_realize (GtkWidget *widget)
{
OwlOverlayBin *overlay_bin;
GdkWindow *parent_window;
GdkWindowAttr attributes;
guint attributes_mask;
int border_width;
overlay_bin = OWL_OVERLAY_BIN (widget);
/**
* Mark widget as realized.
**/
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
/**
* Create our GdkWindow.
**/
border_width = GTK_CONTAINER (widget)->border_width;
attributes.x = widget->allocation.x + border_width;
attributes.y = widget->allocation.y + border_width;
attributes.width = widget->allocation.width - border_width * 2;
attributes.height = widget->allocation.height - border_width * 2;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = GDK_EXPOSURE_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
parent_window = gtk_widget_get_parent_window (widget);
widget->window = gdk_window_new (parent_window,
&attributes,
attributes_mask);
gdk_window_set_user_data (widget->window, widget);
/**
* Attach GtkStyle.
**/
widget->style = gtk_style_attach (widget->style, widget->window);
gtk_style_set_background (widget->style,
widget->window,
GTK_STATE_NORMAL);
}
static void
owl_overlay_bin_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
int border_width;
GtkWidget *child;
border_width = GTK_CONTAINER (widget)->border_width;
/**
* Request width from child.
**/
child = GTK_BIN (widget)->child;
if (child && GTK_WIDGET_VISIBLE (child))
gtk_widget_size_request (child, requisition);
requisition->width += border_width * 2;
requisition->height += border_width * 2;
}
static void
owl_overlay_bin_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
OwlOverlayBin *overlay_bin;
int border_width;
GtkAllocation child_allocation;
GtkWidget *child;
overlay_bin = OWL_OVERLAY_BIN (widget);
/**
* Cache the allocation.
**/
widget->allocation = *allocation;
/**
* Calculate the size for our GdkWindow and for the child.
**/
border_width = GTK_CONTAINER (widget)->border_width;
child_allocation.x = allocation->x + border_width;
child_allocation.y = allocation->y + border_width;
child_allocation.width = allocation->width - border_width * 2;
child_allocation.height = allocation->height - border_width * 2;
/**
* Resize our GdkWindow.
**/
if (GTK_WIDGET_REALIZED (widget)) {
gdk_window_move_resize (widget->window,
child_allocation.x,
child_allocation.y,
child_allocation.width,
child_allocation.height);
}
/**
* Forward the size allocation to our child.
**/
child = GTK_BIN (widget)->child;
if (child && GTK_WIDGET_VISIBLE (child)) {
/**
* The child is positioned relative to its parent.
**/
child_allocation.x = 0;
child_allocation.y = 0;
gtk_widget_size_allocate (child, &child_allocation);
}
}
static void
owl_overlay_bin_class_init (OwlOverlayBinClass *klass)
{
GtkWidgetClass *widget_class;
widget_class = GTK_WIDGET_CLASS (klass);
widget_class->realize = owl_overlay_bin_realize;
widget_class->size_request = owl_overlay_bin_size_request;
widget_class->size_allocate = owl_overlay_bin_size_allocate;
}
/**
* owl_overlay_bin_new
*
* Return value: A new #OwlOverlayBin.
**/
GtkWidget *
owl_overlay_bin_new (void)
{
return g_object_new (OWL_TYPE_OVERLAY_BIN, NULL);
}
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