02b69e4d76
GCC has some optimization for the inclusion guard, but they only work if the check is the outermost one. We're fairly inconsistent because of historical reasons, so we should ensure that we follow the same pattern in every public header.
106 lines
3.4 KiB
C
106 lines
3.4 KiB
C
/*
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* Clutter.
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*
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* An OpenGL based 'interactive canvas' library.
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*
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* Copyright (C) 2012 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Author:
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* Emmanuele Bassi <ebassi@linux.intel.com>
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*/
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#ifndef __CLUTTER_CANVAS_H__
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#define __CLUTTER_CANVAS_H__
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#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
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#error "Only <clutter/clutter.h> can be included directly."
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#endif
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#include <clutter/clutter-types.h>
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_CANVAS (clutter_canvas_get_type ())
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#define CLUTTER_CANVAS(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_CANVAS, ClutterCanvas))
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#define CLUTTER_IS_CANVAS(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_CANVAS))
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#define CLUTTER_CANVAS_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_CANVAS, ClutterCanvasClass))
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#define CLUTTER_IS_CANVAS_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_CANVAS))
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#define CLUTTER_CANVAS_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_CANVAS, ClutterCanvasClass))
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typedef struct _ClutterCanvas ClutterCanvas;
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typedef struct _ClutterCanvasPrivate ClutterCanvasPrivate;
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typedef struct _ClutterCanvasClass ClutterCanvasClass;
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/**
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* ClutterCanvas:
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*
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* The #ClutterCanvas structure contains
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* private data and should only be accessed using the provided
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* API.
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*
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* Since: 1.10
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*/
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struct _ClutterCanvas
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{
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/*< private >*/
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GObject parent_instance;
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ClutterCanvasPrivate *priv;
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};
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/**
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* ClutterCanvasClass:
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* @draw: class handler for the #ClutterCanvas::draw signal
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*
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* The #ClutterCanvasClass structure contains
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* private data.
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*
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* Since: 1.10
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*/
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struct _ClutterCanvasClass
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{
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/*< private >*/
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GObjectClass parent_class;
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/*< public >*/
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gboolean (* draw) (ClutterCanvas *canvas,
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cairo_t *cr,
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int width,
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int height);
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/*< private >*/
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gpointer _padding[16];
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};
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CLUTTER_AVAILABLE_IN_1_10
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GType clutter_canvas_get_type (void) G_GNUC_CONST;
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CLUTTER_AVAILABLE_IN_1_10
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ClutterContent * clutter_canvas_new (void);
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CLUTTER_AVAILABLE_IN_1_10
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gboolean clutter_canvas_set_size (ClutterCanvas *canvas,
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int width,
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int height);
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CLUTTER_AVAILABLE_IN_1_18
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void clutter_canvas_set_scale_factor (ClutterCanvas *canvas,
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int scale);
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CLUTTER_AVAILABLE_IN_1_18
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int clutter_canvas_get_scale_factor (ClutterCanvas *canvas);
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G_END_DECLS
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#endif /* __CLUTTER_CANVAS_H__ */
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