Sme.c revision 7a84e134 
1/* $Xorg: Sme.c,v 1.4 2001/02/09 02:03:45 xorgcvs Exp $ */
2
3/*
4Copyright 1989, 1994, 1998  The Open Group
5
6Permission to use, copy, modify, distribute, and sell this software and its
7documentation for any purpose is hereby granted without fee, provided that
8the above copyright notice appear in all copies and that both that
9copyright notice and this permission notice appear in supporting
10documentation.
11
12The above copyright notice and this permission notice shall be included in
13all copies or substantial portions of the Software.
14
15THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
18OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
19AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
21
22Except as contained in this notice, the name of The Open Group shall not be
23used in advertising or otherwise to promote the sale, use or other dealings
24in this Software without prior written authorization from The Open Group.
25 */
26/* $XFree86: xc/lib/Xaw/Sme.c,v 1.6 2001/01/17 19:42:31 dawes Exp $ */
27
28/*
29 * Date:    September 26, 1989
30 *
31 * By:      Chris D. Peterson
32 *          MIT X Consortium
33 *          kit@expo.lcs.mit.edu
34 */
35
36#ifdef HAVE_CONFIG_H
37#include <config.h>
38#endif
39#include <stdio.h>
40#include <X11/IntrinsicP.h>
41#include <X11/StringDefs.h>
42#include <X11/Xaw/Cardinals.h>
43#include <X11/Xaw/SmeP.h>
44#include <X11/Xaw/XawInit.h>
45#include "Private.h"
46
47/*
48 * Class Methods
49 */
50static void Highlight(Widget);
51static void Notify(Widget);
52static void Unhighlight(Widget);
53static void XawSmeClassPartInitialize(WidgetClass);
54static void XawSmeInitialize(Widget, Widget, ArgList, Cardinal*);
55static XtGeometryResult XawSmeQueryGeometry(Widget, XtWidgetGeometry*,
56					    XtWidgetGeometry*);
57
58/*
59 * Initialization
60 */
61#define offset(field) XtOffsetOf(SmeRec, sme.field)
62static XtResource resources[] = {
63  {
64    XtNcallback,
65    XtCCallback,
66    XtRCallback,
67    sizeof(XtPointer),
68    offset(callbacks),
69    XtRCallback,
70    NULL
71  },
72  {
73    XtNinternational,
74    XtCInternational,
75    XtRBoolean,
76    sizeof(Boolean),
77    offset(international),
78    XtRImmediate,
79    (XtPointer)False
80  },
81};
82#undef offset
83
84#define Superclass	(&rectObjClassRec)
85SmeClassRec smeClassRec = {
86  /* rectangle */
87  {
88    (WidgetClass)Superclass,		/* superclass */
89    "Sme",				/* class_name */
90    sizeof(SmeRec),			/* widget_size */
91    XawInitializeWidgetSet,		/* class_initialize */
92    XawSmeClassPartInitialize,		/* class_part_initialize */
93    False,				/* class_initialized */
94    XawSmeInitialize,			/* initialize */
95    NULL,				/* initialize_hook */
96    NULL,				/* realize */
97    NULL,				/* actions */
98    0,					/* num_actions */
99    resources,				/* resources */
100    XtNumber(resources),		/* num_resources */
101    NULLQUARK,				/* xrm_class */
102    False,				/* compress_motion */
103    False,				/* compress_exposure */
104    False,				/* compress_enterleave */
105    False,				/* visible_interest */
106    NULL,				/* destroy */
107    NULL,				/* resize */
108    NULL,				/* expose */
109    NULL,				/* set_values */
110    NULL,				/* set_values_hook */
111    XtInheritSetValuesAlmost,		/* set_values_almost */
112    NULL,				/* get_values_hook */
113    NULL,				/* accept_focus */
114    XtVersion,				/* intrinsics_version */
115    NULL,				/* callback offsets */
116    NULL,				/* tm_table */
117    XawSmeQueryGeometry,		/* query_geometry */
118    NULL,				/* display_accelerator */
119    NULL,				/* extension */
120  },
121  /* sme */
122  {
123    Highlight,				/* highlight */
124    Unhighlight,			/* unhighlight */
125    Notify,				/* notify */
126    NULL,				/* extension */
127  }
128};
129
130WidgetClass smeObjectClass = (WidgetClass)&smeClassRec;
131
132/*
133 * Implementation
134 */
135/*
136 * Function:
137 *	XawSmeClassPartInitialize
138 *
139 * Parameters:
140 *	cclass - widget classs of this widget
141 *
142 * Description:
143 *	Handles inheritance of class functions.
144 */
145static void
146XawSmeClassPartInitialize(WidgetClass cclass)
147{
148    SmeObjectClass m_ent, superC;
149
150    m_ent = (SmeObjectClass)cclass;
151    superC = (SmeObjectClass)m_ent->rect_class.superclass;
152
153    if (m_ent->sme_class.highlight == XtInheritHighlight)
154	m_ent->sme_class.highlight = superC->sme_class.highlight;
155
156    if (m_ent->sme_class.unhighlight == XtInheritUnhighlight)
157	m_ent->sme_class.unhighlight = superC->sme_class.unhighlight;
158
159    if (m_ent->sme_class.notify == XtInheritNotify)
160	m_ent->sme_class.notify = superC->sme_class.notify;
161}
162
163/*
164 * Function:
165 *	XawSmeInitialize
166 *
167 * Parameters:
168 *	request - widget requested by the argument list
169 *	cnew	- new widget with both resource and non  resource values
170 *
171 * Description:
172 *	Initializes the simple menu widget entry
173 */
174/*ARGSUSED*/
175static void
176XawSmeInitialize(Widget request, Widget cnew,
177		 ArgList args, Cardinal *num_args)
178{
179    SmeObject entry = (SmeObject)cnew;
180
181    entry->rectangle.border_width = 0;
182}
183
184/*
185 * Function:
186 *	Highlight
187 *
188 * Parameters:
189 *	w - menu entry
190 *
191 * Description:
192 *	Default highlight proceedure for menu entries.
193 */
194/*ARGSUSED*/
195static void
196Highlight(Widget w)
197{
198}
199
200/*
201 * Function:
202 *	Unhighlight
203 *
204 * Parameters:
205 *	w - menu entry
206 *
207 * Description:
208 *	Default unhighlight proceedure for menu entries.
209 */
210/*ARGSUSED*/
211static void
212Unhighlight(Widget w)
213{
214}
215
216/*
217 * Function:
218 *	Notify
219 *
220 * Parameters:
221 *	w - menu entry
222 *
223 * Description:
224 *	Calls the callback proceedures for this entry.
225 */
226static void
227Notify(Widget w)
228{
229    XtCallCallbacks(w, XtNcallback, NULL);
230}
231
232/*
233 * Function:
234 *	QueryGeometry
235 *
236 * Parameeters:
237 *	w	   - menu entry object
238 *	itended	   - intended and return geometry info
239 *	return_val -
240 *
241 * Description:
242 *	Returns the preferred geometry for this widget.
243 *
244 * Returns:
245 *	Geometry Result
246 *
247 * Note:
248 *	See the Intrinsics manual for details on what this function is for.
249 */
250static XtGeometryResult
251XawSmeQueryGeometry(Widget w, XtWidgetGeometry *intended,
252		    XtWidgetGeometry *return_val)
253{
254    SmeObject entry = (SmeObject)w;
255    Dimension width;
256    XtGeometryResult ret_val = XtGeometryYes;
257    XtGeometryMask mode = intended->request_mode;
258
259    width = 1;
260
261    if (((mode & CWWidth) && intended->width != width) || !(mode & CWWidth)) {
262	return_val->request_mode |= CWWidth;
263	return_val->width = width;
264	mode = return_val->request_mode;
265
266	if ((mode & CWWidth) && width == XtWidth(entry))
267	    return (XtGeometryNo);
268	return (XtGeometryAlmost);
269    }
270
271    return (ret_val);
272}
273