AsciiText.c revision 994689c1 
1/*
2
3Copyright 1987, 1988, 1994, 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
26Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.
27
28                        All Rights Reserved
29
30Permission to use, copy, modify, and distribute this software and its
31documentation for any purpose and without fee is hereby granted,
32provided that the above copyright notice appear in all copies and that
33both that copyright notice and this permission notice appear in
34supporting documentation, and that the name of Digital not be
35used in advertising or publicity pertaining to distribution of the
36software without specific, written prior permission.
37
38DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
39ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
40DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
41ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
42WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
43ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
44SOFTWARE.
45
46*/
47
48/*
49 * AsciiText.c - Source code for AsciiText Widget
50 *
51 * This Widget is intended to be used as a simple front end to the
52 * text widget with an ascii source and ascii sink attached to it
53 *
54 * Date:    June 29, 1989
55 *
56 * By:      Chris D. Peterson
57 *          MIT X Consortium
58 *          kit@expo.lcs.mit.edu
59 */
60
61#ifdef HAVE_CONFIG_H
62#include <config.h>
63#endif
64#include <stdio.h>
65#include <X11/IntrinsicP.h>
66#include <X11/StringDefs.h>
67#include <X11/Xaw/AsciiTextP.h>
68#include <X11/Xaw/AsciiSrcP.h>
69#include <X11/Xaw/AsciiSink.h>
70#include <X11/Xaw/Cardinals.h>
71#include <X11/Xaw/MultiSinkP.h>
72#include <X11/Xaw/MultiSrc.h>
73#include <X11/Xaw/XawImP.h>
74#include <X11/Xaw/XawInit.h>
75#include "Private.h"
76
77#define TAB_COUNT 32
78
79/*
80 * Class Methods
81 */
82static void XawAsciiInitialize(Widget, Widget, ArgList, Cardinal*);
83static void XawAsciiDestroy(Widget);
84
85/*
86 * From TextSrc.c
87 */
88void _XawSourceAddText(Widget, Widget);
89void _XawSourceRemoveText(Widget, Widget, Bool);
90
91#define Superclass	(&textClassRec)
92AsciiTextClassRec asciiTextClassRec = {
93  /* core */
94  {
95    (WidgetClass)Superclass,		/* superclass */
96    "Text",				/* class_name */
97    sizeof(AsciiRec),			/* widget_size */
98    XawInitializeWidgetSet,		/* class_initialize */
99    NULL,				/* class_part_init */
100    False,				/* class_inited */
101    XawAsciiInitialize,			/* initialize */
102    NULL,				/* initialize_hook */
103    XtInheritRealize,			/* realize */
104    NULL,				/* actions */
105    0,					/* num_actions */
106    NULL,				/* resources */
107    0,					/* num_resource */
108    NULLQUARK,				/* xrm_class */
109    True,				/* compress_motion */
110    XtExposeGraphicsExpose |		/* compress_exposure */
111	XtExposeNoExpose,
112    True,				/* compress_enterleave */
113    False,				/* visible_interest */
114    XawAsciiDestroy,			/* destroy */
115    XtInheritResize,			/* resize */
116    XtInheritExpose,			/* expose */
117    NULL,				/* set_values */
118    NULL,				/* set_values_hook */
119    XtInheritSetValuesAlmost,		/* set_values_almost */
120    NULL,				/* get_values_hook */
121    XtInheritAcceptFocus,		/* accept_focus */
122    XtVersion,				/* version */
123    NULL,				/* callback_private */
124    XtInheritTranslations,		/* tm_table */
125    XtInheritQueryGeometry,		/* query_geometry */
126  },
127  /* simple */
128  {
129    XtInheritChangeSensitive,		/* change_sensitive */
130  },
131  /* text */
132  {
133    NULL,				/* extension */
134  },
135  /* ascii */
136  {
137    NULL,				/* extension */
138  },
139};
140
141WidgetClass asciiTextWidgetClass = (WidgetClass)&asciiTextClassRec;
142
143#ifdef ASCII_STRING
144AsciiStringClassRec asciiStringClassRec = {
145  /* core */
146  {
147    (WidgetClass)&asciiTextClassRec,	/* superclass */
148    "Text",				/* class_name */
149    sizeof(AsciiStringRec),		/* widget_size */
150    NULL,				/* class_initialize */
151    NULL,				/* class_part_init */
152    False,				/* class_inited */
153    NULL,				/* initialize */
154    NULL,				/* initialize_hook */
155    XtInheritRealize,			/* realize */
156    NULL,				/* actions */
157    0,					/* num_actions */
158    NULL,				/* resources */
159    0,					/* num_resource */
160    NULLQUARK,				/* xrm_class */
161    True,				/* compress_motion */
162    XtExposeGraphicsExpose |		/* compress_exposure */
163	XtExposeNoExpose,
164    True,				/* compress_enterleave */
165    False,				/* visible_interest */
166    NULL,				/* destroy */
167    XtInheritResize,			/* resize */
168    XtInheritExpose,			/* expose */
169    NULL,				/* set_values */
170    NULL,				/* set_values_hook */
171    XtInheritSetValuesAlmost,		/* set_values_almost */
172    NULL,				/* get_values_hook */
173    XtInheritAcceptFocus,		/* accept_focus */
174    XtVersion,				/* version */
175    NULL,				/* callback_private */
176    XtInheritTranslations,		/* tm_table */
177    XtInheritQueryGeometry,		/* query_geometry */
178  },
179  /* simple */
180  {
181    XtInheritChangeSensitive,		/* change_sensitive */
182  },
183  /* text */
184  {
185    NULL,				/* extension */
186  },
187  /* ascii */
188  {
189    NULL,				/* extension */
190  },
191  /* string */
192  {
193    NULL,				/* extension */
194  },
195};
196
197WidgetClass asciiStringWidgetClass = (WidgetClass)&asciiStringClassRec;
198#endif /* ASCII_STRING */
199
200#ifdef ASCII_DISK
201AsciiDiskClassRec asciiDiskClassRec = {
202  /* core */
203  {
204    (WidgetClass)&asciiTextClassRec,	/* superclass */
205    "Text",				/* class_name */
206    sizeof(AsciiDiskRec),		/* widget_size */
207    NULL,				/* class_initialize */
208    NULL,				/* class_part_init */
209    False,				/* class_inited */
210    NULL,				/* initialize */
211    NULL,				/* initialize_hook */
212    XtInheritRealize,			/* realize */
213    NULL,				/* actions */
214    0,					/* num_actions */
215    NULL,				/* resources */
216    0,					/* num_resource */
217    NULLQUARK,				/* xrm_class */
218    True,				/* compress_motion */
219    True,				/* compress_exposure */
220    XtExposeGraphicsExpose |		/* compress_enterleave */
221	XtExposeNoExpose,
222    False,				/* visible_interest */
223    NULL,				/* destroy */
224    XtInheritResize,			/* resize */
225    XtInheritExpose,			/* expose */
226    NULL,				/* set_values */
227    NULL,				/* set_values_hook */
228    XtInheritSetValuesAlmost,		/* set_values_almost */
229    NULL,				/* get_values_hook */
230    XtInheritAcceptFocus,		/* accept_focus */
231    XtVersion,				/* version */
232    NULL,				/* callback_private */
233    XtInheritTranslations,		/* tm_table */
234    XtInheritQueryGeometry,		/* query_geometry */
235  },
236  /* simple */
237  {
238    XtInheritChangeSensitive,		/* change_sensitive */
239  },
240  /* text */
241  {
242    NULL,				/* extension */
243  },
244  /* ascii */
245  {
246    NULL,				/* extension */
247  },
248  /* disk */
249  {
250    NULL,				/* extension */
251  },
252};
253
254WidgetClass asciiDiskWidgetClass = (WidgetClass)&asciiDiskClassRec;
255#endif /* ASCII_DISK */
256
257/*
258 * Implementation
259 */
260static void
261XawAsciiInitialize(Widget request, Widget cnew,
262		   ArgList args, Cardinal *num_args)
263{
264    AsciiWidget w = (AsciiWidget)cnew;
265    int i;
266    int tabs[TAB_COUNT], tab;
267
268    MultiSinkObject sink;
269
270    /* superclass Initialize can't set the following,
271     * as it didn't know the source or sink when it was called
272     */
273    if (XtHeight(request) == DEFAULT_TEXT_HEIGHT)
274	XtHeight(cnew) = DEFAULT_TEXT_HEIGHT;
275
276    /* This is the main change for internationalization  */
277    if (w->simple.international == True) { /* The multi* are international */
278	if (w->text.sink == NULL)
279	    w->text.sink = XtCreateWidget("textSink", multiSinkObjectClass,
280					  cnew, args, *num_args);
281	else if (!XtIsSubclass(w->text.sink, multiSinkObjectClass))
282	    XtError("Sink object is not a subclass of multiSink");
283
284	if (w->text.source == NULL)
285	    w->text.source = XtCreateWidget("textSource", multiSrcObjectClass,
286					    cnew, args, *num_args);
287	else if (!XtIsSubclass(w->text.source, multiSrcObjectClass))
288	    XtError("Source object is not a subclass of multiSrc");
289#ifndef OLDXAW
290	else
291	    _XawSourceAddText(w->text.source, cnew);
292#endif
293    }
294    else {
295	if (w->text.sink == NULL)
296	    w->text.sink = XtCreateWidget("textSink", asciiSinkObjectClass,
297					  cnew, args, *num_args);
298	else if (!XtIsSubclass(w->text.source, asciiSinkObjectClass))
299	    XtError("Sink object is not a subclass of asciiSink");
300
301	if (w->text.source == NULL)
302	    w->text.source = XtCreateWidget("textSource", asciiSrcObjectClass,
303					    cnew, args, *num_args);
304	else if (!XtIsSubclass(w->text.source, asciiSrcObjectClass))
305	    XtError("Source object is not a subclass of asciiSrc");
306#ifndef OLDXAW
307	else
308	    _XawSourceAddText(w->text.source, cnew);
309#endif
310    }
311
312    if (XtHeight(w) == DEFAULT_TEXT_HEIGHT)
313	XtHeight(w) = VMargins(w) + XawTextSinkMaxHeight(w->text.sink, 1);
314
315    for (i = 0, tab = 0; i < TAB_COUNT; i++)
316	tabs[i] = (tab += 8);
317
318    XawTextSinkSetTabs(w->text.sink, TAB_COUNT, tabs);
319
320    XawTextDisableRedisplay(cnew);
321    XawTextEnableRedisplay(cnew);
322
323    _XawImRegister(cnew);
324
325    /* If we are using a MultiSink we need to tell the input method stuff */
326    if (w->simple.international == True) {
327	Arg list[4];
328	Cardinal ac = 0;
329
330	sink = (MultiSinkObject)w->text.sink;
331	XtSetArg(list[ac], XtNfontSet, sink->multi_sink.fontset);	ac++;
332	XtSetArg(list[ac], XtNinsertPosition, w->text.insertPos);	ac++;
333	XtSetArg(list[ac], XtNforeground, sink->text_sink.foreground);	ac++;
334	XtSetArg(list[ac], XtNbackground, sink->text_sink.background);	ac++;
335	_XawImSetValues(cnew, list, ac);
336    }
337}
338
339static void
340XawAsciiDestroy(Widget w)
341{
342    AsciiWidget ascii = (AsciiWidget)w;
343
344    _XawImUnregister(w);
345
346    if (w == XtParent(ascii->text.sink))
347	XtDestroyWidget(ascii->text.sink);
348
349#ifdef OLDXAW
350    if (w == XtParent(ascii->text.source))
351	XtDestroyWidget(ascii->text.source);
352#else
353    _XawSourceRemoveText(ascii->text.source, w,
354			 ascii->text.source &&
355			 w == XtParent(ascii->text.source));
356#endif
357}
358