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/* 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 Lesser 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
* 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, see <http://www.gnu.org/licenses/>.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#pragma once
#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <gtk/gtk.h> can be included directly."
#endif
#include <gtk/gtkwidget.h>
G_BEGIN_DECLS
#define GTK_TYPE_DRAWING_AREA (gtk_drawing_area_get_type ())
#define GTK_DRAWING_AREA(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_DRAWING_AREA, GtkDrawingArea))
#define GTK_DRAWING_AREA_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_DRAWING_AREA, GtkDrawingAreaClass))
#define GTK_IS_DRAWING_AREA(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_DRAWING_AREA))
#define GTK_IS_DRAWING_AREA_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_DRAWING_AREA))
#define GTK_DRAWING_AREA_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_DRAWING_AREA, GtkDrawingAreaClass))
typedef struct _GtkDrawingArea GtkDrawingArea;
typedef struct _GtkDrawingAreaClass GtkDrawingAreaClass;
/**
* GtkDrawingAreaDrawFunc:
* @drawing_area: the `GtkDrawingArea` to redraw
* @cr: the context to draw to
* @width: the actual width of the contents. This value will be at least
* as wide as GtkDrawingArea:width.
* @height: the actual height of the contents. This value will be at least
* as wide as GtkDrawingArea:height.
* @user_data: (closure): user data
*
* Whenever @drawing_area needs to redraw, this function will be called.
*
* This function should exclusively redraw the contents of the drawing area
* and must not call any widget functions that cause changes.
*/
typedef void (* GtkDrawingAreaDrawFunc) (GtkDrawingArea *drawing_area,
cairo_t *cr,
int width,
int height,
gpointer user_data);
struct _GtkDrawingArea
{
GtkWidget widget;
};
struct _GtkDrawingAreaClass
{
GtkWidgetClass parent_class;
void (* resize) (GtkDrawingArea *area,
int width,
int height);
/*< private >*/
gpointer padding[8];
};
GDK_AVAILABLE_IN_ALL
GType gtk_drawing_area_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GtkWidget* gtk_drawing_area_new (void);
GDK_AVAILABLE_IN_ALL
void gtk_drawing_area_set_content_width (GtkDrawingArea *self,
int width);
GDK_AVAILABLE_IN_ALL
int gtk_drawing_area_get_content_width (GtkDrawingArea *self);
GDK_AVAILABLE_IN_ALL
void gtk_drawing_area_set_content_height (GtkDrawingArea *self,
int height);
GDK_AVAILABLE_IN_ALL
int gtk_drawing_area_get_content_height (GtkDrawingArea *self);
GDK_AVAILABLE_IN_ALL
void gtk_drawing_area_set_draw_func (GtkDrawingArea *self,
GtkDrawingAreaDrawFunc draw_func,
gpointer user_data,
GDestroyNotify destroy);
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GtkDrawingArea, g_object_unref)
G_END_DECLS
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