147 lines
4.2 KiB
C
147 lines
4.2 KiB
C
/* GTK - The GIMP Toolkit
|
|
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 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
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the Free
|
|
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
#include "gtkdrawingarea.h"
|
|
|
|
|
|
static void gtk_drawing_area_class_init (GtkDrawingAreaClass *klass);
|
|
static void gtk_drawing_area_init (GtkDrawingArea *darea);
|
|
static void gtk_drawing_area_realize (GtkWidget *widget);
|
|
static void gtk_drawing_area_size_allocate (GtkWidget *widget,
|
|
GtkAllocation *allocation);
|
|
|
|
|
|
guint
|
|
gtk_drawing_area_get_type ()
|
|
{
|
|
static guint drawing_area_type = 0;
|
|
|
|
if (!drawing_area_type)
|
|
{
|
|
GtkTypeInfo drawing_area_info =
|
|
{
|
|
"GtkDrawingArea",
|
|
sizeof (GtkDrawingArea),
|
|
sizeof (GtkDrawingAreaClass),
|
|
(GtkClassInitFunc) gtk_drawing_area_class_init,
|
|
(GtkObjectInitFunc) gtk_drawing_area_init,
|
|
(GtkArgFunc) NULL,
|
|
};
|
|
|
|
drawing_area_type = gtk_type_unique (gtk_widget_get_type (), &drawing_area_info);
|
|
}
|
|
|
|
return drawing_area_type;
|
|
}
|
|
|
|
static void
|
|
gtk_drawing_area_class_init (GtkDrawingAreaClass *class)
|
|
{
|
|
GtkWidgetClass *widget_class;
|
|
|
|
widget_class = (GtkWidgetClass*) class;
|
|
|
|
widget_class->realize = gtk_drawing_area_realize;
|
|
widget_class->size_allocate = gtk_drawing_area_size_allocate;
|
|
}
|
|
|
|
static void
|
|
gtk_drawing_area_init (GtkDrawingArea *darea)
|
|
{
|
|
GTK_WIDGET_SET_FLAGS (darea, GTK_BASIC);
|
|
}
|
|
|
|
|
|
GtkWidget*
|
|
gtk_drawing_area_new ()
|
|
{
|
|
return GTK_WIDGET (gtk_type_new (gtk_drawing_area_get_type ()));
|
|
}
|
|
|
|
void
|
|
gtk_drawing_area_size (GtkDrawingArea *darea,
|
|
gint width,
|
|
gint height)
|
|
{
|
|
g_return_if_fail (darea != NULL);
|
|
g_return_if_fail (GTK_IS_DRAWING_AREA (darea));
|
|
|
|
GTK_WIDGET (darea)->requisition.width = width;
|
|
GTK_WIDGET (darea)->requisition.height = height;
|
|
}
|
|
|
|
static void
|
|
gtk_drawing_area_realize (GtkWidget *widget)
|
|
{
|
|
GtkDrawingArea *darea;
|
|
GdkWindowAttr attributes;
|
|
gint attributes_mask;
|
|
|
|
g_return_if_fail (widget != NULL);
|
|
g_return_if_fail (GTK_IS_DRAWING_AREA (widget));
|
|
|
|
darea = GTK_DRAWING_AREA (widget);
|
|
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
|
|
|
|
attributes.window_type = GDK_WINDOW_CHILD;
|
|
attributes.x = widget->allocation.x;
|
|
attributes.y = widget->allocation.y;
|
|
attributes.width = widget->allocation.width;
|
|
attributes.height = widget->allocation.height;
|
|
attributes.wclass = GDK_INPUT_OUTPUT;
|
|
attributes.visual = gtk_widget_get_visual (widget);
|
|
attributes.colormap = gtk_widget_get_colormap (widget);
|
|
attributes.event_mask = gtk_widget_get_events (widget);
|
|
|
|
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
|
|
|
|
widget->window = gdk_window_new (widget->parent->window, &attributes, attributes_mask);
|
|
gdk_window_set_user_data (widget->window, darea);
|
|
|
|
widget->style = gtk_style_attach (widget->style, widget->window);
|
|
gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
|
|
}
|
|
|
|
static void
|
|
gtk_drawing_area_size_allocate (GtkWidget *widget,
|
|
GtkAllocation *allocation)
|
|
{
|
|
GdkEventConfigure event;
|
|
|
|
g_return_if_fail (widget != NULL);
|
|
g_return_if_fail (GTK_IS_DRAWING_AREA (widget));
|
|
g_return_if_fail (allocation != NULL);
|
|
|
|
widget->allocation = *allocation;
|
|
|
|
if (GTK_WIDGET_REALIZED (widget))
|
|
{
|
|
gdk_window_move_resize (widget->window,
|
|
allocation->x, allocation->y,
|
|
allocation->width, allocation->height);
|
|
|
|
event.type = GDK_CONFIGURE;
|
|
event.window = widget->window;
|
|
event.x = allocation->x;
|
|
event.y = allocation->y;
|
|
event.width = allocation->width;
|
|
event.height = allocation->height;
|
|
|
|
gtk_widget_event (widget, (GdkEvent*) &event);
|
|
}
|
|
}
|