21eb49098a
Currently, the memory management in ClutterScript is overly complicated. The basic design tenet should be: - ClutterScript owns a reference on every object it creates This allows the Script instance to reliably handle the lifetime of the instances from creation to disposal. In case of unmerge, the Script instance should destroy any Actor instance, except for the Stage, and release the reference it owns. The Stage is special because it's really owned by Clutter itself, and it should be destroyed explicitly. When disposing the Script itself, it should just release the reference; any parented actor, or any InitiallyUnowned instance, will then be managed by the parent object, as they should, while every GObject instance will go away, as documented. This commit is based on a patch by: Henrik Hedberg <hhedberg@innologies.fi> http://bugzilla.clutter-project.org/show_bug.cgi?id=2316
158 lines
5.2 KiB
C
158 lines
5.2 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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* Authored By Matthew Allum <mallum@openedhand.com>
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*
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* Copyright (C) 2006 OpenedHand
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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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*
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*/
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#ifndef __CLUTTER_SCRIPT_PRIVATE_H__
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#define __CLUTTER_SCRIPT_PRIVATE_H__
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#include <glib-object.h>
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#include <json-glib/json-glib.h>
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#include "clutter-color.h"
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#include "clutter-types.h"
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#include "clutter-script.h"
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_SCRIPT_PARSER (clutter_script_parser_get_type ())
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#define CLUTTER_SCRIPT_PARSER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_SCRIPT_PARSER, ClutterScriptParser))
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#define CLUTTER_IS_SCRIPT_PARSER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_SCRIPT_PARSER))
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typedef struct _ClutterScriptParser ClutterScriptParser;
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typedef struct _JsonParserClass ClutterScriptParserClass;
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struct _ClutterScriptParser
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{
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JsonParser parent_instance;
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/* back reference */
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ClutterScript *script;
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};
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typedef GType (* GTypeGetFunc) (void);
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typedef struct {
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gchar *id;
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gchar *class_name;
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gchar *type_func;
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GList *properties;
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GList *children;
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GList *signals;
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GType gtype;
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GObject *object;
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guint merge_id;
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guint is_actor : 1;
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guint is_stage : 1;
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guint is_stage_default : 1;
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guint has_unresolved : 1;
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guint is_unmerged : 1;
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} ObjectInfo;
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void object_info_free (gpointer data);
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typedef struct {
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gchar *name;
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JsonNode *node;
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GParamSpec *pspec;
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guint is_child : 1;
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guint is_layout : 1;
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} PropertyInfo;
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typedef struct {
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gchar *name;
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gchar *handler;
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gchar *object;
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GConnectFlags flags;
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} SignalInfo;
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void property_info_free (gpointer data);
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GType clutter_script_parser_get_type (void) G_GNUC_CONST;
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gboolean clutter_script_parse_node (ClutterScript *script,
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GValue *value,
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const gchar *name,
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JsonNode *node,
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GParamSpec *pspec);
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GType clutter_script_get_type_from_symbol (const gchar *symbol);
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GType clutter_script_get_type_from_class (const gchar *name);
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gulong clutter_script_resolve_animation_mode (JsonNode *node);
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gboolean clutter_script_enum_from_string (GType gtype,
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const gchar *string,
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gint *enum_value);
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gboolean clutter_script_flags_from_string (GType gtype,
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const gchar *string,
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gint *flags_value);
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gboolean clutter_script_parse_knot (ClutterScript *script,
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JsonNode *node,
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ClutterKnot *knot);
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gboolean clutter_script_parse_geometry (ClutterScript *script,
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JsonNode *node,
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ClutterGeometry *geometry);
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gboolean clutter_script_parse_color (ClutterScript *script,
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JsonNode *node,
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ClutterColor *color);
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GObject *_clutter_script_parse_alpha (ClutterScript *script,
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JsonNode *node);
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void _clutter_script_construct_object (ClutterScript *script,
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ObjectInfo *oinfo);
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void _clutter_script_apply_properties (ClutterScript *script,
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ObjectInfo *oinfo);
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gchar *_clutter_script_generate_fake_id (ClutterScript *script);
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void _clutter_script_warn_missing_attribute (ClutterScript *script,
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const gchar *id,
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const gchar *attribute);
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void _clutter_script_warn_invalid_value (ClutterScript *script,
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const gchar *attribute,
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const gchar *expected,
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JsonNode *node);
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ObjectInfo *_clutter_script_get_object_info (ClutterScript *script,
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const gchar *script_id);
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guint _clutter_script_get_last_merge_id (ClutterScript *script);
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void _clutter_script_add_object_info (ClutterScript *script,
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ObjectInfo *oinfo);
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const gchar *_clutter_script_get_id_from_node (JsonNode *node);
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G_END_DECLS
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#endif /* __CLUTTER_SCRIPT_PRIVATE_H__ */
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