938eea175f
The whole of ClutterBackend is a final/protected type, so having a bunch of instance fields and an instance private data structure is redundant at best, and less efficient at worst.
154 lines
8 KiB
C
154 lines
8 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) 2010 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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#ifndef __CLUTTER_BACKEND_PRIVATE_H__
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#define __CLUTTER_BACKEND_PRIVATE_H__
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#include <clutter/clutter-backend.h>
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#include <clutter/clutter-device-manager.h>
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#include <clutter/clutter-stage-window.h>
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#include "clutter-event-translator.h"
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#define CLUTTER_BACKEND_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_BACKEND, ClutterBackendClass))
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#define CLUTTER_IS_BACKEND_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_BACKEND))
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#define CLUTTER_BACKEND_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_BACKEND, ClutterBackendClass))
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G_BEGIN_DECLS
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typedef struct _ClutterBackendPrivate ClutterBackendPrivate;
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struct _ClutterBackend
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{
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/*< private >*/
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GObject parent_instance;
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CoglRenderer *cogl_renderer;
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CoglDisplay *cogl_display;
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CoglContext *cogl_context;
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GSource *cogl_source;
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ClutterDeviceManager *device_manager;
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cairo_font_options_t *font_options;
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gchar *font_name;
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gfloat units_per_em;
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gint32 units_serial;
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GList *event_translators;
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};
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struct _ClutterBackendClass
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{
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/*< private >*/
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GObjectClass parent_class;
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GType stage_window_type;
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/* vfuncs */
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gboolean (* pre_parse) (ClutterBackend *backend,
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GError **error);
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gboolean (* post_parse) (ClutterBackend *backend,
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GError **error);
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ClutterStageWindow * (* create_stage) (ClutterBackend *backend,
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ClutterStage *wrapper,
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GError **error);
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void (* init_events) (ClutterBackend *backend);
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void (* init_features) (ClutterBackend *backend);
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void (* add_options) (ClutterBackend *backend,
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GOptionGroup *group);
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ClutterFeatureFlags (* get_features) (ClutterBackend *backend);
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CoglRenderer * (* get_renderer) (ClutterBackend *backend,
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GError **error);
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CoglDisplay * (* get_display) (ClutterBackend *backend,
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CoglRenderer *renderer,
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CoglSwapChain *swap_chain,
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GError **error);
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gboolean (* create_context) (ClutterBackend *backend,
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GError **error);
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void (* ensure_context) (ClutterBackend *backend,
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ClutterStage *stage);
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ClutterDeviceManager *(* get_device_manager) (ClutterBackend *backend);
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void (* copy_event_data) (ClutterBackend *backend,
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const ClutterEvent *src,
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ClutterEvent *dest);
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void (* free_event_data) (ClutterBackend *backend,
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ClutterEvent *event);
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gboolean (* translate_event) (ClutterBackend *backend,
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gpointer native,
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ClutterEvent *event);
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PangoDirection (* get_keymap_direction) (ClutterBackend *backend);
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/* signals */
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void (* resolution_changed) (ClutterBackend *backend);
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void (* font_changed) (ClutterBackend *backend);
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void (* settings_changed) (ClutterBackend *backend);
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};
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ClutterBackend * _clutter_create_backend (void);
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ClutterStageWindow * _clutter_backend_create_stage (ClutterBackend *backend,
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ClutterStage *wrapper,
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GError **error);
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void _clutter_backend_ensure_context (ClutterBackend *backend,
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ClutterStage *stage);
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void _clutter_backend_ensure_context_internal (ClutterBackend *backend,
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ClutterStage *stage);
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gboolean _clutter_backend_create_context (ClutterBackend *backend,
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GError **error);
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void _clutter_backend_add_options (ClutterBackend *backend,
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GOptionGroup *group);
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gboolean _clutter_backend_pre_parse (ClutterBackend *backend,
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GError **error);
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gboolean _clutter_backend_post_parse (ClutterBackend *backend,
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GError **error);
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void _clutter_backend_init_events (ClutterBackend *backend);
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void _clutter_backend_copy_event_data (ClutterBackend *backend,
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const ClutterEvent *src,
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ClutterEvent *dest);
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void _clutter_backend_free_event_data (ClutterBackend *backend,
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ClutterEvent *event);
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gboolean _clutter_backend_translate_event (ClutterBackend *backend,
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gpointer native,
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ClutterEvent *event);
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void _clutter_backend_add_event_translator (ClutterBackend *backend,
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ClutterEventTranslator *translator);
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void _clutter_backend_remove_event_translator (ClutterBackend *backend,
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ClutterEventTranslator *translator);
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ClutterFeatureFlags _clutter_backend_get_features (ClutterBackend *backend);
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gfloat _clutter_backend_get_units_per_em (ClutterBackend *backend,
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PangoFontDescription *font_desc);
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gint32 _clutter_backend_get_units_serial (ClutterBackend *backend);
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PangoDirection _clutter_backend_get_keymap_direction (ClutterBackend *backend);
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G_END_DECLS
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#endif /* __CLUTTER_BACKEND_PRIVATE_H__ */
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