1 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2 *
3 * ***** BEGIN LICENSE BLOCK *****
4 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
5 *
6 * The contents of this file are subject to the Mozilla Public License Version
7 * 1.1 (the "License"); you may not use this file except in compliance with
8 * the License. You may obtain a copy of the License at
9 * http://www.mozilla.org/MPL/
10 *
11 * Software distributed under the License is distributed on an "AS IS" basis,
12 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13 * for the specific language governing rights and limitations under the
14 * License.
15 *
16 * The Original Code is the Microline Widget Library, originally made available under the NPL by Neuron Data <http://www.neurondata.com>.
17 *
18 * The Initial Developer of the Original Code is
19 * Netscape Communications Corporation.
20 * Portions created by the Initial Developer are Copyright (C) 1998
21 * the Initial Developer. All Rights Reserved.
22 *
23 * Contributor(s):
24 *
25 * Alternatively, the contents of this file may be used under the terms of
26 * either the GNU General Public License Version 2 or later (the "GPL"), or
27 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
28 * in which case the provisions of the GPL or the LGPL are applicable instead
29 * of those above. If you wish to allow use of your version of this file only
30 * under the terms of either the GPL or the LGPL, and not to allow others to
31 * use your version of this file under the terms of the MPL, indicate your
32 * decision by deleting the provisions above and replace them with the notice
33 * and other provisions required by the GPL or the LGPL. If you do not delete
34 * the provisions above, a recipient may use your version of this file under
35 * the terms of any one of the MPL, the GPL or the LGPL.
36 *
37 * In addition, as a special exception to the GNU GPL, the copyright holders
38 * give permission to link the code of this program with the Motif and Open
39 * Motif libraries (or with modified versions of these that use the same
40 * license), and distribute linked combinations including the two. You
41 * must obey the GNU General Public License in all respects for all of
42 * the code used other than linking with Motif/Open Motif. If you modify
43 * this file, you may extend this exception to your version of the file,
44 * but you are not obligated to do so. If you do not wish to do so,
45 * delete this exception statement from your version.
46 *
47 * ***** END LICENSE BLOCK ***** */
48
49 /*----------------------------------------------------------------------*/
50 /* */
51 /* Name: <XmL/GridUtil.c> */
52 /* */
53 /* Description: XmLGrid misc utilities. They are here in order not to */
54 /* continue bloating Grid.c beyond hope. */
55 /* */
56 /* Author: Ramiro Estrugo <ramiro@netscape.com> */
57 /* */
58 /* Created: Thu May 28 21:55:45 PDT 1998 */
59 /* */
60 /*----------------------------------------------------------------------*/
61
62 #include "GridP.h"
63
64 #include <assert.h>
65
66 /*----------------------------------------------------------------------*/
67 /* extern */ int
68 XmLGridGetRowCount(Widget w)
69 {
70 XmLGridWidget g = (XmLGridWidget) w;
71
72 assert( g != NULL );
73
74 #ifdef DEBUG_ramiro
75 {
76 int rows = 0;
77
78 XtVaGetValues(w,XmNrows,&rows,NULL);
79
80 assert( rows == g->grid.rowCount );
81 }
82 #endif
83
84 return g->grid.rowCount;
85 }
86 /*----------------------------------------------------------------------*/
87 /* extern */ int
88 XmLGridGetColumnCount(Widget w)
89 {
90 XmLGridWidget g = (XmLGridWidget) w;
91
92 assert( g != NULL );
93
94 #ifdef DEBUG_ramiro
95 {
96 int columns = 0;
97
98 XtVaGetValues(w,XmNcolumns,&columns,NULL);
99
100 assert( columns == g->grid.colCount );
101 }
102 #endif
103
104 return g->grid.colCount;
105 }
106 /*----------------------------------------------------------------------*/
107 /* extern */ void
108 XmLGridXYToCellTracking(Widget widget,
109 int x, /* input only args. */
110 int y, /* input only args. */
111 Boolean * m_inGrid, /* input/output args. */
112 int * m_lastRow, /* input/output args. */
113 int * m_lastCol, /* input/output args. */
114 unsigned char * m_lastRowtype, /* input/output args. */
115 unsigned char * m_lastColtype,/* input/output args. */
116 int * outRow, /* output only args. */
117 int * outCol, /* output only args. */
118 Boolean * enter, /* output only args. */
119 Boolean * leave) /* output only args. */
120 {
121 int m_totalLines = 0;
122 int m_numcolumns = 0;
123 int row = 0;
124 int column = 0;
125 unsigned char rowtype = XmCONTENT;
126 unsigned char coltype = XmCONTENT;
127
128 if (0 > XmLGridXYToRowColumn(widget,
129 x,
130 y,
131 &rowtype,
132 &row,
133 &coltype,
134 &column))
135 {
136 /* In grid; but, not in any cells
137 */
138 /* treat it as a leave
139 */
140 *enter = FALSE;
141 *leave = TRUE;
142 return;
143 }/* if */
144
145 m_totalLines = XmLGridGetRowCount(widget);
146 m_numcolumns = XmLGridGetColumnCount(widget);
147
148 if ((row < m_totalLines) &&
149 (column < m_numcolumns) &&
150 ((*m_lastRow != row)||
151 (*m_lastCol != column) ||
152 (*m_lastRowtype != rowtype)||
153 (*m_lastColtype != coltype)))
154 {
155 *outRow = (rowtype == XmHEADING)?-1:row;
156 *outCol = column;
157
158 if (*m_inGrid == False)
159 {
160 *m_inGrid = True;
161
162 /* enter a cell
163 */
164 *enter = TRUE;
165 *leave = FALSE;
166
167 }/* if */
168 else
169 {
170 /* Cruising among cells
171 */
172 *enter = TRUE;
173 *leave = TRUE;
174 }/* else */
175 *m_lastRow = row;
176 *m_lastCol = column;
177 *m_lastRowtype = rowtype ;
178 *m_lastColtype = coltype ;
179 }/* row /col in grid */
180 }
181 /*----------------------------------------------------------------------*/
182