85 lines
2.4 KiB
C
85 lines
2.4 KiB
C
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/* abstract base class for all vips objects
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*/
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/*
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Copyright (C) 1991-2003 The National Gallery
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
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*/
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#define TYPE_VOBJECT (vobject_get_type())
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#define VOBJECT( obj ) \
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(G_TYPE_CHECK_INSTANCE_CAST( (obj), TYPE_VOBJECT, VObject ))
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#define VOBJECT_CLASS( klass ) \
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(G_TYPE_CHECK_CLASS_CAST( (klass), TYPE_VOBJECT, VObjectClass))
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#define IS_VOBJECT( obj ) \
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(G_TYPE_CHECK_INSTANCE_TYPE( (obj), TYPE_VOBJECT ))
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#define IS_VOBJECT_CLASS( klass ) \
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(G_TYPE_CHECK_CLASS_TYPE( (klass), TYPE_VOBJECT ))
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#define VOBJECT_GET_CLASS( obj ) \
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(G_TYPE_INSTANCE_GET_CLASS( (obj), TYPE_VOBJECT, VObjectClass ))
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/* Handy vobject_destroy() shortcut.
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*/
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#define IDESTROY( O ) { \
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if( O ) { \
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(void) vobject_destroy( VOBJECT( O ) ); \
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( O ) = NULL; \
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} \
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}
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typedef struct _VObject {
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GObject parent_object;
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/* True when created ... the 1 reference that gobject makes is
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* 'floating' and not owned by anyone. Do _sink() after every _ref()
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* to transfer ownership to the parent container. Upshot: no need to
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* _unref() after _add() in _new().
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*/
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gboolean floating;
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/* Stop destroy loops with this.
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*/
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gboolean in_destruction;
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} VObject;
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typedef struct _VObjectClass {
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GObjectClass parent_class;
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/* End object's lifetime, just like gtk_object_destroy.
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*/
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void (*destroy)( VObject * );
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/* Something about the object has changed. Should use glib's properties
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* but fix this later.
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*/
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void (*changed)( VObject * );
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} VObjectClass;
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void *vobject_destroy( VObject *vobject );
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void *vobject_changed( VObject *vobject );
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void vobject_sink( VObject *vobject );
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GType vobject_get_type( void );
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