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mutter-performance-source/clutter/clutter-backend.h
Emmanuele Bassi dd93a0a13c 2007-07-31 Emmanuele Bassi <ebassi@openedhand.com>
* clutter/clutter-backend.[ch]: Add clutter_backend_set_resolution()
	and clutter_backend_get_resolution(); backends should use the former
	to set the resolution of the display when initialising, while actors
	should use the latter when sizing themselves depending on the
	resolution or the font size.

	* clutter/glx/clutter-backend-glx.c: Set the resolution as 96 dpi
	as a default and query the X server when opening the display.

	* clutter/clutter-entry.c: Drop the hardcoded dpi value and use
	clutter_backend_get_resolution() to compute the default size.
2007-07-31 10:38:23 +00:00

90 lines
3.7 KiB
C

/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Authored By Matthew Allum <mallum@openedhand.com>
*
* Copyright (C) 2006 OpenedHand
*
* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __CLUTTER_BACKEND_H__
#define __CLUTTER_BACKEND_H__
#include <glib-object.h>
#include <clutter/clutter-actor.h>
#include <clutter/clutter-event.h>
#include <clutter/clutter-feature.h>
G_BEGIN_DECLS
#define CLUTTER_TYPE_BACKEND (clutter_backend_get_type ())
#define CLUTTER_BACKEND(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_BACKEND, ClutterBackend))
#define CLUTTER_IS_BACKEND(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_BACKEND))
#define CLUTTER_BACKEND_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_BACKEND, ClutterBackendClass))
#define CLUTTER_IS_BACKEND_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_BACKEND))
#define CLUTTER_BACKEND_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_BACKEND, ClutterBackendClass))
typedef struct _ClutterBackend ClutterBackend;
typedef struct _ClutterBackendPrivate ClutterBackendPrivate;
typedef struct _ClutterBackendClass ClutterBackendClass;
struct _ClutterBackend
{
GObject parent_instance;
ClutterBackendPrivate *priv;
};
struct _ClutterBackendClass
{
GObjectClass parent_class;
/* vfuncs */
gboolean (* pre_parse) (ClutterBackend *backend,
GError **error);
gboolean (* post_parse) (ClutterBackend *backend,
GError **error);
gboolean (* init_stage) (ClutterBackend *backend,
GError **error);
void (* init_events) (ClutterBackend *backend);
void (* init_features) (ClutterBackend *backend);
ClutterActor *(* get_stage) (ClutterBackend *backend);
void (* add_options) (ClutterBackend *backend,
GOptionGroup *group);
ClutterFeatureFlags (* get_features) (ClutterBackend *backend);
void (* redraw) (ClutterBackend *backend);
};
GType clutter_backend_get_type (void) G_GNUC_CONST;
ClutterBackend *clutter_get_default_backend (void);
void clutter_backend_set_resolution (ClutterBackend *backend,
gdouble dpi);
gdouble clutter_backend_get_resolution (ClutterBackend *backend);
void clutter_backend_set_double_click_time (ClutterBackend *backend,
guint msec);
guint clutter_backend_get_double_click_time (ClutterBackend *backend);
void clutter_backend_set_double_click_distance (ClutterBackend *backend,
guint distance);
guint clutter_backend_get_double_click_distance (ClutterBackend *backend);
G_END_DECLS
#endif /* __CLUTTER_BACKEND_H__ */