1 /* a ip region class in a workspace
2  */
3 
4 /*
5 
6     Copyright (C) 1991-2003 The National Gallery
7 
8     This program is free software; you can redistribute it and/or modify
9     it under the terms of the GNU General Public License as published by
10     the Free Software Foundation; either version 2 of the License, or
11     (at your option) any later version.
12 
13     This program is distributed in the hope that it will be useful,
14     but WITHOUT ANY WARRANTY; without even the implied warranty of
15     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16     GNU General Public License for more details.
17 
18     You should have received a copy of the GNU General Public License along
19     with this program; if not, write to the Free Software Foundation, Inc.,
20     51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
21 
22  */
23 
24 /*
25 
26     These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
27 
28  */
29 
30 #define TYPE_IREGION (iregion_get_type())
31 #define IREGION( obj ) \
32 	(G_TYPE_CHECK_INSTANCE_CAST( (obj), TYPE_IREGION, iRegion ))
33 #define IREGION_CLASS( klass ) \
34 	(G_TYPE_CHECK_CLASS_CAST( (klass), TYPE_IREGION, iRegionClass))
35 #define IS_IREGION( obj ) \
36 	(G_TYPE_CHECK_INSTANCE_TYPE( (obj), TYPE_IREGION ))
37 #define IS_IREGION_CLASS( klass ) \
38 	(G_TYPE_CHECK_CLASS_TYPE( (klass), TYPE_IREGION ))
39 #define IREGION_GET_CLASS( obj ) \
40 	(G_TYPE_INSTANCE_GET_CLASS( (obj), TYPE_IREGION, iRegionClass ))
41 
42 /* Handy for indexing arrays.
43  */
44 typedef enum iRegionType {
45 	IREGION_MARK = 0,
46 	IREGION_HGUIDE,
47 	IREGION_VGUIDE,
48 	IREGION_ARROW,
49 	IREGION_REGION,
50 	IREGION_AREA
51 } iRegionType;
52 
53 /* Our instance vars ... packaged up for code sharing.
54  */
55 typedef struct {
56 	/* Stuff from the heap.
57 	 */
58 	Element image_class;		/* Child image class */
59 	Imageinfo *ii;
60 	Rect area;
61 
62 	/* Client display stuff.
63 	 */
64 	Classmodel *classmodel;
65 	iRegiongroup *iregiongroup;
66 } iRegionInstance;
67 
68 struct _iRegion {
69 	iImage parent_class;
70 
71 	/* Class fields shared with iarrow.c.
72 	 */
73 	iRegionInstance instance;
74 };
75 
76 typedef struct _iRegionClass {
77 	iImageClass parent_class;
78 
79 	/* My methods.
80 	 */
81 } iRegionClass;
82 
83 void iregion_instance_destroy( iRegionInstance *instance );
84 void iregion_instance_init( iRegionInstance *instance, Classmodel *classmodel );
85 gboolean iregion_instance_update( iRegionInstance *instance, PElement *root );
86 
87 void iregion_edit( GtkWidget *parent, Model *model );
88 void iregion_parent_add( iContainer *child );
89 xmlNode *iregion_save( Model *model, xmlNode *xnode );
90 gboolean iregion_load( Model *model,
91 	ModelLoadState *state, Model *parent, xmlNode *xnode );
92 
93 void *iregion_update_heap( Heapmodel *heapmodel );
94 
95 gboolean iregion_class_get( Classmodel *classmodel, PElement *root );
96 gboolean iregion_class_new( Classmodel *classmodel,
97 	PElement *fn, PElement *out );
98 
99 GType iregion_get_type( void );
100