TreeP.h revision 5b16253f 
1/*
2
3Copyright 1990, 1998  The Open Group
4
5Permission to use, copy, modify, distribute, and sell this software and its
6documentation for any purpose is hereby granted without fee, provided that
7the above copyright notice appear in all copies and that both that
8copyright notice and this permission notice appear in supporting
9documentation.
10
11The above copyright notice and this permission notice shall be included in
12all copies or substantial portions of the Software.
13
14THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
17OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20
21Except as contained in this notice, the name of The Open Group shall not be
22used in advertising or otherwise to promote the sale, use or other dealings
23in this Software without prior written authorization from The Open Group.
24
25 * Copyright 1989 Prentice Hall
26 *
27 * Permission to use, copy, modify, and distribute this software for any
28 * purpose and without fee is hereby granted, provided that the above
29 * copyright notice appear in all copies and that both the copyright notice
30 * and this permission notice appear in supporting documentation.
31 *
32 * Prentice Hall and the authors disclaim all warranties with regard
33 * to this software, including all implied warranties of merchantability and
34 * fitness.  In no event shall Prentice Hall or the authors be liable
35 * for any special, indirect or cosequential damages or any damages whatsoever
36 * resulting from loss of use, data or profits, whether in an action of
37 * contract, negligence or other tortious action, arising out of or in
38 * connection with the use or performance of this software.
39 *
40 * Authors:  Jim Fulton, MIT X Consortium,
41 *           based on a version by Douglas Young, Prentice Hall
42 *
43 * This widget is based on the Tree widget described on pages 397-419 of
44 * Douglas Young's book "The X Window System, Programming and Applications
45 * with Xt OSF/Motif Edition."  The layout code has been rewritten to use
46 * additional blank space to make the structure of the graph easier to see
47 * as well as to support vertical trees.
48 */
49
50#ifndef _XawTreeP_h
51#define _XawTreeP_h
52
53#include <X11/Xaw/Tree.h>
54
55typedef struct _TreeClassPart {
56    XtPointer extension;
57} TreeClassPart;
58
59typedef struct _TreeClassRec {
60    CoreClassPart core_class;
61    CompositeClassPart composite_class;
62    ConstraintClassPart constraint_class;
63    TreeClassPart tree_class;
64} TreeClassRec;
65
66extern TreeClassRec treeClassRec;
67
68typedef struct {
69    /* fields available through resources */
70    Dimension hpad;			/* hSpace/HSpace */
71    Dimension vpad;			/* vSpace/VSpace */
72    Dimension line_width;		/* lineWidth/LineWidth */
73    Pixel foreground;			/* foreground/Foreground */
74    XtGravity gravity;			/* gravity/Gravity */
75    Boolean auto_reconfigure;		/* autoReconfigure/AutoReconfigure */
76    /* private fields */
77    GC gc;				/* used to draw lines */
78    Widget tree_root;			/* hidden root off all children */
79    Dimension *largest;			/* list of largest per depth */
80    int n_largest;			/* number of elements in largest */
81    Dimension maxwidth, maxheight;	/* for shrink wrapping */
82#ifndef OLDXAW
83    XawDisplayList *display_list;
84    XtPointer pad[4];	/* for future use and keep binary compatibility */
85#endif
86} TreePart;
87
88
89typedef struct _TreeRec {
90    CorePart core;
91    CompositePart composite;
92    ConstraintPart constraint;
93    TreePart tree;
94}  TreeRec;
95
96
97/*
98 * structure attached to all children
99 */
100typedef struct _TreeConstraintsPart {
101    /* resources */
102    Widget parent;			/* treeParent/TreeParent */
103    GC gc;				/* treeGC/TreeGC */
104    /* private data */
105    Widget *children;
106    int n_children;
107    int max_children;
108    Dimension bbsubwidth, bbsubheight;	/* bounding box of sub tree */
109    Dimension bbwidth, bbheight;	/* bounding box including node */
110    Position x, y;
111#ifndef OLDXAW
112    XtPointer pad[2];	/* leave some space for future optimizations, and
113			 * keep binary compatibility
114			 */
115#endif
116} TreeConstraintsPart;
117
118typedef struct _TreeConstraintsRec {
119   TreeConstraintsPart tree;
120} TreeConstraintsRec, *TreeConstraints;
121
122
123/*
124 * useful macros
125 */
126
127#define TREE_CONSTRAINT(w) \
128                   ((TreeConstraints)((w)->core.constraints))
129
130#define TREE_INITIAL_DEPTH 10		/* for allocating largest array */
131#define TREE_HORIZONTAL_DEFAULT_SPACING 20
132#define TREE_VERTICAL_DEFAULT_SPACING 6
133
134#endif /* _XawTreeP_h */
135
136
137
138