Text.c

Bug Summary

File:	Text.c
Location:	line 1713, column 2
Description:	Value stored to 'y1' is never read

Annotated Source Code

1	/***********************************************************
2
3	Copyright 1987, 1988, 1994, 1998 The Open Group
4
5	Permission to use, copy, modify, distribute, and sell this software and its
6	documentation for any purpose is hereby granted without fee, provided that
7	the above copyright notice appear in all copies and that both that
8	copyright notice and this permission notice appear in supporting
9	documentation.
10
11	The above copyright notice and this permission notice shall be included in
12	all copies or substantial portions of the Software.
13
14	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17	OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18	AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19	CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20
21	Except as contained in this notice, the name of The Open Group shall not be
22	used in advertising or otherwise to promote the sale, use or other dealings
23	in this Software without prior written authorization from The Open Group.
24
25
26	Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.
27
28	All Rights Reserved
29
30	Permission to use, copy, modify, and distribute this software and its
31	documentation for any purpose and without fee is hereby granted,
32	provided that the above copyright notice appear in all copies and that
33	both that copyright notice and this permission notice appear in
34	supporting documentation, and that the name of Digital not be
35	used in advertising or publicity pertaining to distribution of the
36	software without specific, written prior permission.
37
38	DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
39	ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
40	DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
41	ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
42	WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
43	ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
44	SOFTWARE.
45
46	******************************************************************/
47
48	/*
49	* Copyright (c) 1998 by The XFree86 Project, Inc.
50	*
51	* Permission is hereby granted, free of charge, to any person obtaining a
52	* copy of this software and associated documentation files (the "Software"),
53	* to deal in the Software without restriction, including without limitation
54	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
55	* and/or sell copies of the Software, and to permit persons to whom the
56	* Software is furnished to do so, subject to the following conditions:
57	*
58	* The above copyright notice and this permission notice shall be included in
59	* all copies or substantial portions of the Software.
60	*
61	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
62	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
63	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
64	* THE XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
65	* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
66	* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
67	* SOFTWARE.
68	*
69	* Except as contained in this notice, the name of the XFree86 Project shall
70	* not be used in advertising or otherwise to promote the sale, use or other
71	* dealings in this Software without prior written authorization from the
72	* XFree86 Project.
73	*/
74
75	#ifdef HAVE_CONFIG_H1
76	#include <config.h>
77	#endif
78	#include <stdio.h>
79	#include <X11/IntrinsicP.h>
80	#include <X11/StringDefs.h>
81	#include <X11/Shell.h>
82	#include <X11/Xatom.h>
83	#include <X11/Xfuncs.h>
84	#include <X11/Xutil.h>
85	#include <X11/Xmu/Misc.h>
86	#include <X11/Xmu/Xmu.h>
87	#include <X11/Xaw/Cardinals.h>
88	#include <X11/Xaw/MultiSinkP.h>
89	#include <X11/Xaw/TextP.h>
90	#include <X11/Xaw/TextSrcP.h>
91	#include <X11/Xaw/TextSinkP.h>
92	#include <X11/Xaw/Scrollbar.h>
93	#include <X11/Xaw/XawImP.h>
94	#include <X11/Xaw/XawInit.h>
95	#include "Private.h"
96	#include "XawI18n.h"
97
98	#ifndef MAX_LEN_CT6
99	#define MAX_LEN_CT6 6 /* for sequence: ESC $ ( A \xx \xx */
100	#endif
101
102	unsigned long FMT8BIT = 0L;
103	unsigned long XawFmt8Bit = 0L;
104	unsigned long XawFmtWide = 0L;
105
106	#define SinkClearToBG_XawTextSinkClearToBackground _XawTextSinkClearToBackground
107
108	#define SrcScanXawTextSourceScan XawTextSourceScan
109	#define SrcReadXawTextSourceRead XawTextSourceRead
110	#define SrcReplaceXawTextSourceReplace XawTextSourceReplace
111	#define SrcSearchXawTextSourceSearch XawTextSourceSearch
112	#define SrcCvtSelXawTextSourceConvertSelection XawTextSourceConvertSelection
113	#define SrcSetSelectionXawTextSourceSetSelection XawTextSourceSetSelection
114
115	#define MULTI_CLICK_TIME500L 500L
116
117	#define SRC_CHANGE_NONE0 0
118	#define SRC_CHANGE_AFTER1 1
119	#define SRC_CHANGE_BEFORE2 2
120	#define SRC_CHANGE_OVERLAP3 3
121
122	#define Superclass(&simpleClassRec) (&simpleClassRec)
123
124	/*
125	* Compute a the maximum length of a cut buffer that we can pass at any
126	* time. The 64 allows for the overhead of the Change Property request.
127	*/
128	#define MAX_CUT_LEN(dpy)(XMaxRequestSize(dpy) - 64) (XMaxRequestSize(dpy) - 64)
129
130	#define ClearWindow(ctx)_XawTextNeedsUpdating((ctx), (ctx)->text.lt.top, (ctx)-> text.lt.info[ctx->text.lt.lines].position) \
131	_XawTextNeedsUpdating((ctx), \
132	(ctx)->text.lt.top, \
133	(ctx)->text.lt.info[ctx->text.lt.lines].position)
134
135	/*
136	* Class Methods
137	*/
138	static void XawTextClassInitialize(void);
139	static void XawTextInitialize(Widget, Widget, ArgList, Cardinal*);
140	static void XawTextRealize(Widget, XtValueMask, XSetWindowAttributes);
141	static void XawTextDestroy(Widget);
142	static void XawTextResize(Widget);
143	static void XawTextExpose(Widget, XEvent*, Region);
144	static Boolean XawTextSetValues(Widget, Widget, Widget, ArgList, Cardinal*);
145	static void XawTextGetValuesHook(Widget, ArgList, Cardinal*);
146	static Boolint XawTextChangeSensitive(Widget);
147
148	/*
149	* Prototypes
150	*/
151	static XawTextPosition _BuildLineTable(TextWidget, XawTextPosition, int);
152	static void _CreateCutBuffers(Display*);
153	static Boolean TextConvertSelection(Widget, Atom, Atom, Atom, XtPointer,
154	unsigned long, int);
155	static int CountLines(TextWidget, XawTextPosition, XawTextPosition);
156	static void CreateHScrollBar(TextWidget);
157	static void CreateVScrollBar(TextWidget);
158	static void CvtStringToScrollMode(XrmValuePtr, Cardinal*,
159	XrmValuePtr, XrmValuePtr);
160	static Boolean CvtScrollModeToString(Display, XrmValue, Cardinal*,
161	XrmValue, XrmValue, XtPointer*);
162	static void CvtStringToWrapMode(XrmValuePtr, Cardinal*,
163	XrmValuePtr, XrmValuePtr);
164	static Boolean CvtWrapModeToString(Display, XrmValue, Cardinal*,
165	XrmValue, XrmValue, XtPointer*);
166	static Boolean CvtStringToJustifyMode(Display, XrmValue, Cardinal*,
167	XrmValue, XrmValue, XtPointer*);
168	static Boolean CvtJustifyModeToString(Display, XrmValue, Cardinal*,
169	XrmValue, XrmValue, XtPointer*);
170	static void DestroyHScrollBar(TextWidget);
171	static void DestroyVScrollBar(TextWidget);
172	#ifndef OLDXAW1
173	static void DisplayText(Widget, XawTextPosition, XawTextPosition);
174	#endif
175	static void OldDisplayText(Widget, XawTextPosition, XawTextPosition);
176	static void DisplayTextWindow(Widget);
177	static void DoCopyArea(TextWidget, int, int, unsigned int, unsigned int,
178	int, int);
179	static void DoSelection(TextWidget, XawTextPosition, Time, Boolint);
180	static void ExtendSelection(TextWidget, XawTextPosition, Boolint);
181	static XawTextPosition FindGoodPosition(TextWidget, XawTextPosition);
182	static void FlushUpdate(TextWidget);
183	static int GetCutBufferNumber(Atom);
184	static int GetMaxTextWidth(TextWidget);
185	static unsigned int GetWidestLine(TextWidget);
186	static void HScroll(Widget, XtPointer, XtPointer);
187	static void HJump(Widget, XtPointer, XtPointer);
188	static void InsertCursor(Widget, XawTextInsertState);
189	static Boolint LineAndXYForPosition(TextWidget, XawTextPosition, int*,
190	int, int);
191	static int LineForPosition(TextWidget, XawTextPosition);
192	static void TextLoseSelection(Widget, Atom*);
193	static Boolint MatchSelection(Atom, XawTextSelection*);
194	static void ModifySelection(TextWidget, XawTextPosition, XawTextPosition);
195	static XawTextPosition PositionForXY(TextWidget, int, int);
196	static void PositionHScrollBar(TextWidget);
197	static void PositionVScrollBar(TextWidget);
198	#ifndef OLDXAW1
199	static int ResolveColumnNumber(TextWidget);
200	static int ResolveLineNumber(TextWidget);
201	#endif
202	static void _SetSelection(TextWidget, XawTextPosition, XawTextPosition,
203	Atom*, Cardinal);
204	static void TextSinkResize(Widget);
205	static void UpdateTextInRectangle(TextWidget, XRectangle*);
206	static void UpdateTextInLine(TextWidget, int, int, int);
207	static void VScroll(Widget, XtPointer, XtPointer);
208	static void VJump(Widget, XtPointer, XtPointer);
209
210	/*
211	* External
212	*/
213	void _XawTextAlterSelection(TextWidget,
214	XawTextSelectionMode, XawTextSelectionAction,
215	String, Cardinal);
216	void _XawTextCheckResize(TextWidget);
217	void _XawTextClearAndCenterDisplay(TextWidget);
218	void _XawTextExecuteUpdate(TextWidget);
219	char *_XawTextGetText(TextWidget, XawTextPosition, XawTextPosition);
220	void _XawTextPrepareToUpdate(TextWidget);
221	int _XawTextReplace(TextWidget, XawTextPosition, XawTextPosition,
222	XawTextBlock*);
223	Atom _XawTextSelectionList(TextWidget, String, Cardinal);
224	void _XawTextSetScrollBars(TextWidget);
225	void _XawTextSetSelection(TextWidget, XawTextPosition, XawTextPosition,
226	String*, Cardinal);
227	void _XawTextVScroll(TextWidget, int);
228	void XawTextScroll(TextWidget, int, int);
229	void _XawTextSetSource(Widget, Widget, XawTextPosition, XawTextPosition);
230	#ifndef OLDXAW1
231	void _XawTextSetLineAndColumnNumber(TextWidget, Boolint);
232	#endif
233	void _XawTextSourceChanged(Widget, XawTextPosition, XawTextPosition,
234	XawTextBlock*, int);
235
236	/* Not used by other modules, but were extern on previous versions
237	* of the library
238	*/
239	void _XawTextShowPosition(TextWidget);
240
241	/*
242	* From TextAction.c
243	*/
244	extern void _XawTextZapSelection(TextWidget, XEvent*, Boolint);
245
246	/*
247	* From TextSrc.c
248	*/
249	void _XawSourceAddText(Widget, Widget);
250	void _XawSourceRemoveText(Widget, Widget, Boolint);
251	Boolint _XawTextSourceNewLineAtEOF(Widget);
252
253	/*
254	* From TextSink.c
255	*/
256	void _XawTextSinkClearToBackground(Widget, int, int, unsigned, unsigned);
257	void _XawTextSinkDisplayText(Widget, int, int, XawTextPosition, XawTextPosition,
258	Boolint);
259
260	/****************************************************************
261	*
262	* Full class record constant
263	*
264	****************************************************************/
265	/*
266	* From TextTr.c
267	*/
268	static XawTextSelectType defaultSelectTypes[] = {
269	XawselectPosition, XawselectAlphaNumeric, XawselectWord, XawselectLine,
270	XawselectParagraph, XawselectAll, XawselectNull,
271	};
272
273	static XPointer defaultSelectTypesPtr = (XPointer)defaultSelectTypes;
274	static Dimension defWidth = 100;
275	static Dimension defHeight = DEFAULT_TEXT_HEIGHT((Dimension)~0);
276
277	#define offset(field) XtOffsetOf(TextRec, field)__builtin_offsetof(TextRec, field)
278	static XtResource resources[] = {
279	{
280	XtNwidth((char*)&XtStrings[872]),
281	XtCWidth((char*)&XtStrings[1510]),
282	XtRDimension((char*)&XtStrings[1618]),
283	sizeof(Dimension),
284	offset(core.width),
285	XtRDimension((char*)&XtStrings[1618]),
286	(XtPointer)&defWidth
287	},
288	{
289	XtNcursor"cursor",
290	XtCCursor((char*)&XtStrings[976]),
291	XtRCursor((char*)&XtStrings[1611]),
292	sizeof(Cursor),
293	offset(simple.cursor),
294	XtRString((char*)&XtStrings[1797]),
295	"xterm"
296	},
297	{
298	XtNheight((char*)&XtStrings[234]),
299	XtCHeight((char*)&XtStrings[1051]),
300	XtRDimension((char*)&XtStrings[1618]),
301	sizeof(Dimension),
302	offset(core.height),
303	XtRDimension((char*)&XtStrings[1618]),
304	(XtPointer)&defHeight
305	},
306	{
307	XtNdisplayPosition"displayPosition",
308	XtCTextPosition((char*)&XtStrings[1435]),
309	XtRInt((char*)&XtStrings[1718]),
310	sizeof(XawTextPosition),
311	offset(text.lt.top),
312	XtRImmediate((char*)&XtStrings[1695]),
313	(XtPointer)0
314	},
315	{
316	XtNinsertPosition((char*)&XtStrings[326]),
317	XtCTextPosition((char*)&XtStrings[1435]),
318	XtRInt((char*)&XtStrings[1718]),
319	sizeof(XawTextPosition),
320	offset(text.insertPos),
321	XtRImmediate((char*)&XtStrings[1695]),
322	(XtPointer)0
323	},
324	{
325	XtNleftMargin"leftMargin",
326	XtCMargin((char*)&XtStrings[1182]),
327	XtRPosition((char*)&XtStrings[1775]),
328	sizeof(Position),
329	offset(text.r_margin.left),
330	XtRImmediate((char*)&XtStrings[1695]),
331	(XtPointer)2
332	},
333	{
334	XtNrightMargin"rightMargin",
335	XtCMargin((char*)&XtStrings[1182]),
336	XtRPosition((char*)&XtStrings[1775]),
337	sizeof(Position),
338	offset(text.r_margin.right),
339	XtRImmediate((char*)&XtStrings[1695]),
340	(XtPointer)4
341	},
342	{
343	XtNtopMargin"topMargin",
344	XtCMargin((char*)&XtStrings[1182]),
345	XtRPosition((char*)&XtStrings[1775]),
346	sizeof(Position),
347	offset(text.r_margin.top),
348	XtRImmediate((char*)&XtStrings[1695]),
349	(XtPointer)2
350	},
351	{
352	XtNbottomMargin"bottomMargin",
353	XtCMargin((char*)&XtStrings[1182]),
354	XtRPosition((char*)&XtStrings[1775]),
355	sizeof(Position),
356	offset(text.r_margin.bottom),
357	XtRImmediate((char*)&XtStrings[1695]),
358	(XtPointer)2
359	},
360	{
361	XtNselectTypes"selectTypes",
362	XtCSelectTypes"SelectTypes",
363	XtRPointer((char*)&XtStrings[1767]),
364	sizeof(XawTextSelectType*),
365	offset(text.sarray),
366	XtRPointer((char*)&XtStrings[1767]),
367	(XtPointer)&defaultSelectTypesPtr
368	},
369	{
370	XtNtextSource((char*)&XtStrings[761]),
371	XtCTextSource((char*)&XtStrings[1457]),
372	XtRWidget((char*)&XtStrings[1865]),
373	sizeof(Widget),
374	offset(text.source),
375	XtRImmediate((char*)&XtStrings[1695]),
376	NULL((void*)0)
377	},
378	{
379	XtNtextSink((char*)&XtStrings[752]),
380	XtCTextSink((char*)&XtStrings[1448]),
381	XtRWidget((char*)&XtStrings[1865]),
382	sizeof(Widget),
383	offset(text.sink),
384	XtRImmediate((char*)&XtStrings[1695]),
385	NULL((void*)0)
386	},
387	{
388	XtNdisplayCaret"displayCaret",
389	XtCOutput"Output",
390	XtRBoolean((char*)&XtStrings[1561]),
391	sizeof(Boolean),
392	offset(text.display_caret),
393	XtRImmediate((char*)&XtStrings[1695]),
394	(XtPointer)True1
395	},
396	{
397	XtNscrollVertical"scrollVertical",
398	XtCScroll"Scroll",
399	XtRScrollMode"ScrollMode",
400	sizeof(XawTextScrollMode),
401	offset(text.scroll_vert),
402	XtRImmediate((char*)&XtStrings[1695]),
403	(XtPointer)False0
404	},
405	{
406	XtNscrollHorizontal"scrollHorizontal",
407	XtCScroll"Scroll",
408	XtRScrollMode"ScrollMode",
409	sizeof(XawTextScrollMode),
410	offset(text.scroll_horiz),
411	XtRImmediate((char*)&XtStrings[1695]),
412	(XtPointer)False0
413	},
414	{
415	XtNwrap"wrap",
416	XtCWrap"Wrap",
417	XtRWrapMode"WrapMode",
418	sizeof(XawTextWrapMode),
419	offset(text.wrap),
420	XtRImmediate((char*)&XtStrings[1695]),
421	(XtPointer)XawtextWrapNever
422	},
423	{
424	XtNautoFill"autoFill",
425	XtCAutoFill"AutoFill",
426	XtRBoolean((char*)&XtStrings[1561]),
427	sizeof(Boolean),
428	offset(text.auto_fill),
429	XtRImmediate((char*)&XtStrings[1695]),
430	(XtPointer)False0
431	},
432	#ifndef OLDXAW1
433	{
434	XtNpositionCallback"positionCallback",
435	XtCCallback((char*)&XtStrings[952]),
436	XtRCallback((char*)&XtStrings[1569]),
437	sizeof(XtPointer),
438	offset(text.position_callbacks),
439	XtRCallback((char*)&XtStrings[1569]),
440	NULL((void*)0)
441	},
442	{
443	XtNleftColumn"leftColumn",
444	XtCColumn"Column",
445	XtRShort((char*)&XtStrings[1791]),
446	sizeof(short),
447	offset(text.left_column),
448	XtRImmediate((char*)&XtStrings[1695]),
449	(XtPointer)0
450	},
451	{
452	XtNrightColumn"rightColumn",
453	XtCColumn"Column",
454	XtRShort((char*)&XtStrings[1791]),
455	sizeof(short),
456	offset(text.right_column),
457	XtRImmediate((char*)&XtStrings[1695]),
458	(XtPointer)0
459	},
460	{
461	XtNjustifyMode((char*)&XtStrings[379]),
462	XtCJustifyMode((char*)&XtStrings[1122]),
463	XtRJustifyMode"JustifyMode",
464	sizeof(XawTextJustifyMode),
465	offset(text.justify),
466	XtRImmediate((char*)&XtStrings[1695]),
467	(XtPointer)XawjustifyLeft
468	},
469	#endif /* OLDXAW */
470	};
471	#undef offset
472
473	#define done(address, type) \
474	{ toVal->size = sizeof(type); toVal->addr = (XPointer)address; }
475
476	static XrmQuark QWrapNever, QWrapLine, QWrapWord;
477	#ifndef notdef
478	static XrmQuark QScrollNever, QScrollWhenNeeded, QScrollAlways;
479	#endif
480	static XrmQuark QJustifyLeft, QJustifyRight, QJustifyCenter, QJustifyFull;
481
482	/ARGSUSED/
483	static void
484	CvtStringToScrollMode(XrmValuePtr args, Cardinal *num_args,
485	XrmValuePtr fromVal, XrmValuePtr toVal)
486	{
487	static XawTextScrollMode scrollMode = XawtextScrollNever;
488	XrmQuark q;
489	char name[32];
490
491	XmuNCopyISOLatin1Lowered(name, (char *)fromVal->addr, sizeof(name));
492	q = XrmStringToQuark(name);
493
494	if (q == QScrollNever \|\| q == QScrollWhenNeeded)
495	scrollMode = XawtextScrollNever;
496	else if (q == QScrollAlways)
497	scrollMode = XawtextScrollAlways;
498	else if (strcmp(name, "true") == 0 \|\| strcmp(name, "1") == 0)
499	scrollMode = XawtextScrollAlways;
500	else if (strcmp(name, "false") == 0 \|\| strcmp(name, "0") == 0)
501	scrollMode = XawtextScrollNever;
502	else
503	XtStringConversionWarning((char *)fromVal->addr, XtRScrollMode"ScrollMode");
504
505	done(&scrollMode, XawTextScrollMode);
506	}
507
508	/ARGSUSED/
509	static Boolean
510	CvtScrollModeToString(Display dpy, XrmValue args, Cardinal *num_args,
511	XrmValue fromVal, XrmValue toVal, XtPointer *data)
512	{
513	static char *buffer;
514	Cardinal size;
515
516	switch ((XawTextScrollMode )fromVal->addr) {
517	case XawtextScrollNever:
518	case XawtextScrollWhenNeeded:
519	buffer = XtEtextScrollNever"never";
520	break;
521	case XawtextScrollAlways:
522	buffer = XtEtextScrollAlways"always";
523	break;
524	default:
525	XawTypeToStringWarning(dpy, XtRScrollMode"ScrollMode");
526	toVal->addr = NULL((void*)0);
527	toVal->size = 0;
528	return (False0);
529	}
530	size = strlen(buffer) + 1;
531	if (toVal->addr != NULL((void*)0)) {
532	if (toVal->size < size) {
533	toVal->size = size;
534	return (False0);
535	}
536	strcpy((char *)toVal->addr, buffer);
537	}
538	else
539	toVal->addr = (XPointer)buffer;
540	toVal->size = sizeof(String);
541
542	return (True1);
543	}
544
545	/ARGSUSED/
546	static void
547	CvtStringToWrapMode(XrmValuePtr args, Cardinal *num_args,
548	XrmValuePtr fromVal, XrmValuePtr toVal)
549	{
550	static XawTextWrapMode wrapMode = XawtextWrapNever;
551	XrmQuark q;
552	char lowerName[6];
553
554	XmuNCopyISOLatin1Lowered(lowerName, (char *)fromVal->addr,
555	sizeof(lowerName));
556	q = XrmStringToQuark(lowerName);
557
558	if (q == QWrapNever)
559	wrapMode = XawtextWrapNever;
560	else if (q == QWrapLine)
561	wrapMode = XawtextWrapLine;
562	else if (q == QWrapWord)
563	wrapMode = XawtextWrapWord;
564	else
565	XtStringConversionWarning((char *)fromVal->addr, XtRWrapMode"WrapMode");
566
567	done(&wrapMode, XawTextWrapMode);
568	}
569
570	/ARGSUSED/
571	static Boolean
572	CvtWrapModeToString(Display dpy, XrmValue args, Cardinal *num_args,
573	XrmValue fromVal, XrmValue toVal, XtPointer *data)
574	{
575	static char *buffer;
576	Cardinal size;
577
578	switch ((XawTextWrapMode )fromVal->addr) {
579	case XawtextWrapNever:
580	buffer = XtEtextWrapNever"never";
581	break;
582	case XawtextWrapLine:
583	buffer = XtEtextWrapLine"line";
584	break;
585	case XawtextWrapWord:
586	buffer = XtEtextWrapWord"word";
587	break;
588	default:
589	XawTypeToStringWarning(dpy, XtRWrapMode"WrapMode");
590	toVal->addr = NULL((void*)0);
591	toVal->size = 0;
592	return (False0);
593	}
594	size = strlen(buffer) + 1;
595	if (toVal->addr != NULL((void*)0)) {
596	if (toVal->size < size) {
597	toVal->size = size;
598	return (False0);
599	}
600	strcpy((char *)toVal->addr, buffer);
601	}
602	else
603	toVal->addr = (XPointer)buffer;
604	toVal->size = sizeof(String);
605
606	return (True1);
607	}
608
609	/ARGSUSED/
610	static Boolean
611	CvtStringToJustifyMode(Display dpy, XrmValue args, Cardinal *num_args,
612	XrmValue fromVal, XrmValue toVal, XtPointer *data)
613	{
614	XawTextJustifyMode justify;
615	XrmQuark q;
616	char lowerName[8];
617
618	XmuNCopyISOLatin1Lowered(lowerName, (char *)fromVal->addr,
619	sizeof(lowerName));
620	q = XrmStringToQuark(lowerName);
621
622	if (q == QJustifyLeft)
623	justify = XawjustifyLeft;
624	else if (q == QJustifyRight)
625	justify = XawjustifyRight;
626	else if (q == QJustifyCenter)
627	justify = XawjustifyCenter;
628	else if(q == QJustifyFull)
629	justify = XawjustifyFull;
630	else {
631	XtStringConversionWarning((char *)fromVal->addr, XtRJustifyMode"JustifyMode");
632	return (False0);
633	}
634
635	toVal->size = sizeof(XawTextJustifyMode);
636	(XawTextJustifyMode )(toVal->addr) = justify;
637
638	return (True1);
639	}
640
641
642	/ARGSUSED/
643	static Boolean
644	CvtJustifyModeToString(Display dpy, XrmValue args, Cardinal *num_args,
645	XrmValue fromVal, XrmValue toVal, XtPointer *data)
646	{
647	static char *buffer;
648	Cardinal size;
649
650	switch ((XawTextJustifyMode )fromVal->addr) {
651	case XawjustifyLeft:
652	buffer = XtEtextJustifyLeft"left";
653	break;
654	case XawjustifyRight:
655	buffer = XtEtextJustifyRight"right";
656	break;
657	case XawjustifyCenter:
658	buffer = XtEtextJustifyCenter"center";
659	break;
660	case XawjustifyFull:
661	buffer = XtEtextJustifyFull"full";
662	break;
663	default:
664	XawTypeToStringWarning(dpy, XtRJustifyMode"JustifyMode");
665	toVal->addr = NULL((void*)0);
666	toVal->size = 0;
667	return (False0);
668	}
669	size = strlen(buffer) + 1;
670	if (toVal->addr != NULL((void*)0)) {
671	if (toVal->size < size) {
672	toVal->size = size;
673	return (False0);
674	}
675	strcpy((char *)toVal->addr, buffer);
676	}
677	else
678	toVal->addr = (XPointer)buffer;
679	toVal->size = sizeof(String);
680
681	return (True1);
682	}
683
684	#undef done
685
686	static void
687	XawTextClassInitialize(void)
688	{
689	if (!XawFmt8Bit)
690	FMT8BIT = XawFmt8Bit = XrmPermStringToQuark("FMT8BIT");
691	if (!XawFmtWide)
692	XawFmtWide = XrmPermStringToQuark("FMTWIDE");
693
694	XawInitializeWidgetSet();
695
696	textClassRec.core_class.num_actions = _XawTextActionsTableCount;
697
698	QWrapNever = XrmPermStringToQuark(XtEtextWrapNever"never");
699	QWrapLine = XrmPermStringToQuark(XtEtextWrapLine"line");
700	QWrapWord = XrmPermStringToQuark(XtEtextWrapWord"word");
701	XtAddConverter(XtRString((char)&XtStrings[1797]), XtRWrapMode"WrapMode", CvtStringToWrapMode, NULL((void)0), 0);
702	XtSetTypeConverter(XtRWrapMode"WrapMode", XtRString((char*)&XtStrings[1797]), CvtWrapModeToString,
703	NULL((void)0), 0, XtCacheNone0x001, NULL((void)0));
704	QScrollNever = XrmPermStringToQuark(XtEtextScrollNever"never");
705	QScrollWhenNeeded = XrmPermStringToQuark(XtEtextScrollWhenNeeded"whenneeded");
706	QScrollAlways = XrmPermStringToQuark(XtEtextScrollAlways"always");
707	XtAddConverter(XtRString((char*)&XtStrings[1797]), XtRScrollMode"ScrollMode", CvtStringToScrollMode,
708	NULL((void*)0), 0);
709	XtSetTypeConverter(XtRScrollMode"ScrollMode", XtRString((char*)&XtStrings[1797]), CvtScrollModeToString,
710	NULL((void)0), 0, XtCacheNone0x001, NULL((void)0));
711	QJustifyLeft = XrmPermStringToQuark(XtEtextJustifyLeft"left");
712	QJustifyRight = XrmPermStringToQuark(XtEtextJustifyRight"right");
713	QJustifyCenter = XrmPermStringToQuark(XtEtextJustifyCenter"center");
714	QJustifyFull = XrmPermStringToQuark(XtEtextJustifyFull"full");
715	XtSetTypeConverter(XtRString((char*)&XtStrings[1797]), XtRJustifyMode"JustifyMode", CvtStringToJustifyMode,
716	NULL((void)0), 0, XtCacheNone0x001, NULL((void)0));
717	XtSetTypeConverter(XtRJustifyMode"JustifyMode", XtRString((char*)&XtStrings[1797]), CvtJustifyModeToString,
718	NULL((void)0), 0, XtCacheNone0x001, NULL((void)0));
719	}
720
721	/*
722	* Function:
723	* PositionHScrollBar
724	*
725	* Parameters:
726	* ctx - text widget
727	*
728	* Description:
729	* Positions the Horizontal scrollbar.
730	*/
731	static void
732	PositionHScrollBar(TextWidget ctx)
733	{
734	Widget hbar = ctx->text.hbar, vbar = ctx->text.vbar;
735	Position x, y;
736	Dimension width, height;
737
738	if (ctx->text.hbar == NULL((void*)0))
739	return;
740
741	if (vbar != NULL((void*)0))
742	x = XtWidth(vbar)(((RectObj)vbar)->rectangle.width);
743	else
744	x = -XtBorderWidth(hbar)(((RectObj)hbar)->rectangle.border_width);
745	y = XtHeight(ctx)(((RectObj)ctx)->rectangle.height) - XtHeight(hbar)(((RectObj)hbar)->rectangle.height) - XtBorderWidth(hbar)(((RectObj)hbar)->rectangle.border_width);
746	if (vbar != NULL((void*)0)) {
747	width = XtWidth(ctx)(((RectObj)ctx)->rectangle.width) - XtWidth(vbar)(((RectObj)vbar)->rectangle.width) - XtBorderWidth(vbar)(((RectObj)vbar)->rectangle.border_width);
748	if (width > XtWidth(ctx)(((RectObj)ctx)->rectangle.width))
749	width = XtWidth(ctx)(((RectObj)ctx)->rectangle.width);
750	}
751	else
752	width = XtWidth(ctx)(((RectObj)ctx)->rectangle.width);
753	height = XtHeight(hbar)(((RectObj)hbar)->rectangle.height);
754
755	XtConfigureWidget(hbar, x, y, width, height, XtBorderWidth(hbar)(((RectObj)hbar)->rectangle.border_width));
756	}
757
758	/*
759	* Function:
760	* PositionVScrollBar
761	*
762	* Parameters:
763	* ctx - text widget
764	*
765	* Description:
766	* Positions the Vertical scrollbar.
767	*/
768	static void
769	PositionVScrollBar(TextWidget ctx)
770	{
771	Widget vbar = ctx->text.vbar;
772	Position x, y;
773	Dimension width, height;
774
775	if (vbar == NULL((void*)0))
776	return;
777
778	x = y = -XtBorderWidth(vbar)(((RectObj)vbar)->rectangle.border_width);
779	height = XtHeight(ctx)(((RectObj)ctx)->rectangle.height);
780	width = XtWidth(vbar)(((RectObj)vbar)->rectangle.width);
781
782	XtConfigureWidget(vbar, x, y, width, height, XtBorderWidth(vbar)(((RectObj)vbar)->rectangle.border_width));
783	}
784
785	static void
786	CreateVScrollBar(TextWidget ctx)
787	{
788	Widget vbar;
789
790	if (ctx->text.vbar != NULL((void*)0))
791	return;
792
793	ctx->text.vbar = vbar =
794	XtCreateWidget("vScrollbar", scrollbarWidgetClass, (Widget)ctx, NULL((void*)0), 0);
795	XtAddCallback(vbar, XtNscrollProc((char*)&XtStrings[591]), VScroll, (XtPointer)ctx);
796	XtAddCallback(vbar, XtNjumpProc((char*)&XtStrings[370]), VJump, (XtPointer)ctx);
797
798	ctx->text.r_margin.left += XtWidth(vbar)(((RectObj)vbar)->rectangle.width) + XtBorderWidth(vbar)(((RectObj)vbar)->rectangle.border_width);
799	ctx->text.left_margin = ctx->text.margin.left = ctx->text.r_margin.left;
800
801	PositionVScrollBar(ctx);
802	PositionHScrollBar(ctx);
803	TextSinkResize(ctx->text.sink);
804
805	if (XtIsRealized((Widget)ctx)(XtWindowOfObject((Widget)ctx) != 0L)) {
806	XtRealizeWidget(vbar);
807	XtMapWidget(vbar)XMapWindow((((vbar)->core.screen)->display), ((vbar)-> core.window));
808	}
809	XtSetKeyboardFocus(vbar, (Widget)ctx);
810	}
811
812	/*
813	* Function:
814	* DestroyVScrollBar
815	*
816	* Parameters:
817	* ctx - parent text widget
818	*
819	* Description:
820	* Removes vertical ScrollBar.
821	*/
822	static void
823	DestroyVScrollBar(TextWidget ctx)
824	{
825	Widget vbar = ctx->text.vbar;
826
827	if (vbar == NULL((void*)0))
828	return;
829
830	ctx->text.r_margin.left -= XtWidth(vbar)(((RectObj)vbar)->rectangle.width) + XtBorderWidth(vbar)(((RectObj)vbar)->rectangle.border_width);
831	ctx->text.left_margin = ctx->text.margin.left = ctx->text.r_margin.left;
832
833	XtDestroyWidget(vbar);
834	ctx->text.vbar = NULL((void*)0);
835	if (!ctx->core.being_destroyed) {
836	PositionHScrollBar(ctx);
837	TextSinkResize(ctx->text.sink);
838	}
839	}
840
841	static void
842	CreateHScrollBar(TextWidget ctx)
843	{
844	Arg args[1];
845	Widget hbar;
846	int bottom;
847
848	if (ctx->text.hbar != NULL((void*)0))
849	return;
850
851	XtSetArg(args[0], XtNorientation, XtorientHorizontal)((void)( (args[0]).name = (((char*)&XtStrings[505])), (args [0]).value = (XtArgVal)(XtorientHorizontal) ));
852	ctx->text.hbar = hbar =
853	XtCreateWidget("hScrollbar", scrollbarWidgetClass, (Widget)ctx, args, 1);
854	XtAddCallback(hbar, XtNscrollProc((char*)&XtStrings[591]), HScroll, (XtPointer)ctx);
855	XtAddCallback(hbar, XtNjumpProc((char*)&XtStrings[370]), HJump, (XtPointer)ctx);
856
857	bottom = ctx->text.r_margin.bottom + XtHeight(hbar)(((RectObj)hbar)->rectangle.height) + XtBorderWidth(hbar)(((RectObj)hbar)->rectangle.border_width);
858
859	ctx->text.margin.bottom = ctx->text.r_margin.bottom = bottom;
860
861	PositionHScrollBar(ctx);
862	TextSinkResize(ctx->text.sink);
863
864	if (XtIsRealized((Widget)ctx)(XtWindowOfObject((Widget)ctx) != 0L)) {
865	XtRealizeWidget(hbar);
866	XtMapWidget(hbar)XMapWindow((((hbar)->core.screen)->display), ((hbar)-> core.window));
867	}
868	XtSetKeyboardFocus(hbar, (Widget)ctx);
869	}
870
871	/*
872	* Function:
873	* DestroyHScrollBar
874	*
875	* Parameters:
876	* ctx - parent text widget
877	*
878	* Description:
879	* Removes horizontal ScrollBar.
880	*/
881	static void
882	DestroyHScrollBar(TextWidget ctx)
883	{
884	Widget hbar = ctx->text.hbar;
885
886	if (hbar == NULL((void*)0))
887	return;
888
889	ctx->text.r_margin.bottom -= XtHeight(hbar)(((RectObj)hbar)->rectangle.height) + XtBorderWidth(hbar)(((RectObj)hbar)->rectangle.border_width);
890	ctx->text.margin.bottom = ctx->text.r_margin.bottom;
891
892	XtDestroyWidget(hbar);
893	ctx->text.hbar = NULL((void*)0);
894	if (!ctx->core.being_destroyed)
895	TextSinkResize(ctx->text.sink);
896	}
897
898	/ARGSUSED/
899	static void
900	XawTextInitialize(Widget request, Widget cnew,
901	ArgList args, Cardinal *num_args)
902	{
903	TextWidget ctx = (TextWidget)cnew;
904
905	ctx->text.lt.lines = 0;
906	ctx->text.lt.info = (XawTextLineTableEntry *)
907	XtCalloc(1, sizeof(XawTextLineTableEntry));
908	#ifndef OLDXAW1
909	ctx->text.lt.base_line = 1;
910	#endif
911	(void)bzero(&ctx->text.origSel, sizeof(XawTextSelection))memset(&ctx->text.origSel,0,sizeof(XawTextSelection));
912	(void)bzero(&ctx->text.s, sizeof(XawTextSelection))memset(&ctx->text.s,0,sizeof(XawTextSelection));
913	ctx->text.s.type = XawselectPosition;
914	ctx->text.salt = NULL((void*)0);
915	ctx->text.hbar = ctx->text.vbar = NULL((void*)0);
916	ctx->text.lasttime = 0;
917	ctx->text.time = 0;
918	ctx->text.showposition = True1;
919	ctx->text.lastPos = ctx->text.source != NULL((void*)0) ?
920	XawTextGetLastPosition(ctx)XawTextSourceScan((ctx)->text.source, 0, XawstAll, XawsdRight , 1, 1) : 0;
921	ctx->text.file_insert = NULL((void*)0);
922	ctx->text.search = NULL((void*)0);
923	ctx->text.update = XmuNewScanline(0, 0, 0);
924	ctx->text.gc = XtGetGC(cnew, 0, 0);
925	ctx->text.hasfocus = False0;
926	ctx->text.margin = ctx->text.r_margin; /* Strucure copy */
927	ctx->text.left_margin = ctx->text.r_margin.left;
928	ctx->text.update_disabled = False0;
929	ctx->text.clear_to_eol = True1;
930	ctx->text.old_insert = -1;
931	ctx->text.mult = 1;
932	ctx->text.salt2 = NULL((void*)0);
933	ctx->text.from_left = -1;
934
935	#ifndef OLDXAW1
936	ctx->text.numeric = False0;
937	ctx->text.selection_state = False0;
938	ctx->text.kill_ring = 0;
939
940	ctx->text.line_number = -1;
941	ctx->text.column_number = -1;
942	ctx->text.source_changed = SRC_CHANGE_NONE0;
943
944	ctx->text.kill_ring_ptr = NULL((void*)0);
945	ctx->text.overwrite = False0;
946	#endif
947
948	if (XtHeight(ctx)(((RectObj)ctx)->rectangle.height) == DEFAULT_TEXT_HEIGHT((Dimension)~0)) {
949	XtHeight(ctx)(((RectObj)ctx)->rectangle.height) = VMargins(ctx)((ctx)->text.margin.top + (ctx)->text.margin.bottom);
950	if (ctx->text.sink != NULL((void*)0))
951	XtHeight(ctx)(((RectObj)ctx)->rectangle.height) += XawTextSinkMaxHeight(ctx->text.sink, 1);
952	}
953
954	if (ctx->text.scroll_vert == XawtextScrollAlways)
955	CreateVScrollBar(ctx);
956	if (ctx->text.scroll_horiz == XawtextScrollAlways)
957	CreateHScrollBar(ctx);
958
959	#ifndef OLDXAW1
960	if (ctx->text.left_column < 0)
961	ctx->text.left_column = 0;
962	if (ctx->text.right_column < 0)
963	ctx->text.right_column = 0;
964	#endif
965	}
966
967	static void
968	XawTextRealize(Widget w, XtValueMask mask, XSetWindowAttributes attr)
969	{
970	TextWidget ctx = (TextWidget)w;
971
972	(*textClassRec.core_class.superclass->core_class.realize)(w, mask, attr);
973
974	if (ctx->text.hbar != NULL((void*)0)) {
975	XtRealizeWidget(ctx->text.hbar);
976	XtMapWidget(ctx->text.hbar)XMapWindow((((ctx->text.hbar)->core.screen)->display ), ((ctx->text.hbar)->core.window));
977	}
978
979	if (ctx->text.vbar != NULL((void*)0)) {
980	XtRealizeWidget(ctx->text.vbar);
981	XtMapWidget(ctx->text.vbar)XMapWindow((((ctx->text.vbar)->core.screen)->display ), ((ctx->text.vbar)->core.window));
982	}
983
984	_XawTextBuildLineTable(ctx, ctx->text.lt.top, True1);
985
986	#ifndef OLDXAW1
987	_XawTextSetLineAndColumnNumber(ctx, True1);
988	#endif
989	}
990
991	/* Utility routines for support of Text */
992	static void
993	_CreateCutBuffers(Display *d)
994	{
995	static struct _DisplayRec {
996	struct _DisplayRec *next;
997	Display *dpy;
998	} dpy_list = NULL((void)0);
999	struct _DisplayRec *dpy_ptr;
1000
1001	for (dpy_ptr = dpy_list; dpy_ptr != NULL((void*)0); dpy_ptr = dpy_ptr->next)
1002	if (dpy_ptr->dpy == d)
1003	return;
1004
1005	dpy_ptr = XtNew(struct _DisplayRec)((struct _DisplayRec *) XtMalloc((unsigned) sizeof(struct _DisplayRec )));
1006	dpy_ptr->next = dpy_list;
1007	dpy_ptr->dpy = d;
1008	dpy_list = dpy_ptr;
1009
1010	#define Create(buffer) \
1011	XChangeProperty(d, RootWindow(d, 0)((&((_XPrivDisplay)d)->screens[0])->root), buffer, XA_STRING((Atom) 31), 8, \
1012	PropModeAppend2, NULL((void*)0), 0);
1013
1014	Create(XA_CUT_BUFFER0((Atom) 9));
1015	Create(XA_CUT_BUFFER1((Atom) 10));
1016	Create(XA_CUT_BUFFER2((Atom) 11));
1017	Create(XA_CUT_BUFFER3((Atom) 12));
1018	Create(XA_CUT_BUFFER4((Atom) 13));
1019	Create(XA_CUT_BUFFER5((Atom) 14));
1020	Create(XA_CUT_BUFFER6((Atom) 15));
1021	Create(XA_CUT_BUFFER7((Atom) 16));
1022
1023	#undef Create
1024	}
1025
1026	/*
1027	* Procedure to manage insert cursor visibility for editable text. It uses
1028	* the value of ctx->insertPos and an implicit argument. In the event that
1029	* position is immediately preceded by an eol graphic, then the insert cursor
1030	* is displayed at the beginning of the next line.
1031	*/
1032	static void
1033	InsertCursor(Widget w, XawTextInsertState state)
1034	{
1035	TextWidget ctx = (TextWidget)w;
1036	int x, y;
1037	int line;
1038
1039	if (ctx->text.lt.lines < 1)
1040	return;
1041
1042	if (ctx->text.display_caret &&
1043	LineAndXYForPosition(ctx, ctx->text.insertPos, &line, &x, &y)) {
1044	if (line < ctx->text.lt.lines)
1045	y += (ctx->text.lt.info[line + 1].y - ctx->text.lt.info[line].y) + 1;
1046	else
1047	y += (ctx->text.lt.info[line].y - ctx->text.lt.info[line - 1].y) + 1;
1048
1049	XawTextSinkInsertCursor(ctx->text.sink, x, y, state);
1050	}
1051
1052	/* Keep Input Method up to speed */
1053	if (ctx->simple.international) {
1054	Arg list[1];
1055
1056	XtSetArg(list[0], XtNinsertPosition, ctx->text.insertPos)((void)( (list[0]).name = (((char*)&XtStrings[326])), (list [0]).value = (XtArgVal)(ctx->text.insertPos) ));
1057	_XawImSetValues(w, list, 1);
1058	}
1059	}
1060
1061	/*
1062	* Procedure to register a span of text that is no longer valid on the display
1063	* It is used to avoid a number of small, and potentially overlapping, screen
1064	* updates.
1065	*/
1066	void
1067	_XawTextNeedsUpdating(TextWidget ctx,
1068	XawTextPosition left, XawTextPosition right)
1069	{
1070	XmuSegment segment;
1071
1072	if (left >= right)
1073	return;
1074
1075	segment.x1 = (int)left;
1076	segment.x2 = (int)right;
1077	(void)XmuScanlineOrSegment(ctx->text.update, &segment);
1078	}
1079
1080	/*
1081	* Procedure to read a span of text in Ascii form. This is purely a hack and
1082	* we probably need to add a function to sources to provide this functionality.
1083	* [note: this is really a private procedure but is used in multiple modules].
1084	*/
1085	char *
1086	_XawTextGetText(TextWidget ctx, XawTextPosition left, XawTextPosition right)
1087	{
1088	char result, tempResult;
1089	XawTextBlock text;
1090	int bytes;
1091
1092	if (XawTextFormat(ctx, XawFmt8Bit)((unsigned long)_XawTextFormat(ctx) == (XawFmt8Bit)))
1093	bytes = sizeof(unsigned char);
1094	else if (XawTextFormat(ctx, XawFmtWide)((unsigned long)_XawTextFormat(ctx) == (XawFmtWide)))
1095	bytes = sizeof(wchar_t);
1096	else /* if there is another fomat, add here */
1097	bytes = 1;
1098
1099	/* leave space for ZERO */
1100	tempResult = result = XtMalloc((unsigned)(right - left + ONE((Cardinal)1)) * bytes);
1101
1102	while (left < right) {
1103	left = SrcReadXawTextSourceRead(ctx->text.source, left, &text, (int)(right - left));
1104	if (!text.length)
1105	break;
1106	memmove(tempResult, text.ptr, (unsigned)(text.length * bytes));
1107	tempResult += text.length * bytes;
1108	}
1109
1110	if (bytes == sizeof(wchar_t))
1111	((wchar_t)tempResult) = (wchar_t)0;
1112	else
1113	*tempResult = '\0';
1114
1115	return (result);
1116	}
1117
1118	/* Like _XawTextGetText, but enforces ICCCM STRING type encoding. This
1119	* routine is currently used to put just the ASCII chars in the selection
1120	* into a cut buffer.
1121	*/
1122	char *
1123	_XawTextGetSTRING(TextWidget ctx, XawTextPosition left, XawTextPosition right)
1124	{
1125	unsigned char *s;
1126	unsigned char c;
1127	long i, j, n;
1128	wchar_t *ws, wc;
1129
1130	/* allow ESC in accordance with ICCCM */
1131	if (XawTextFormat(ctx, XawFmtWide)((unsigned long)_XawTextFormat(ctx) == (XawFmtWide))) {
1132	MultiSinkObject sink = (MultiSinkObject)ctx->text.sink;
1133	ws = (wchar_t *)_XawTextGetText(ctx, left, right);
1134	n = wcslen(ws);
1135	for (j = 0, i = 0; j < n; j++) {
1136	wc = ws[j];
1137	if (XwcTextEscapement (sink->multi_sink.fontset, &wc, 1)
1138	\|\| (wc == _Xaw_atowc(XawTAB0x09)) \|\| (wc == _Xaw_atowc(XawLF0x0a))
1139	\|\| (wc == _Xaw_atowc(XawESC0x1b)))
1140	ws[i++] = wc;
1141	}
1142	ws[i] = (wchar_t)0;
1143	return ((char *)ws);
1144	}
1145	else {
1146	s = (unsigned char *)_XawTextGetText(ctx, left, right);
1147	/* only HT and NL control chars are allowed, strip out others */
1148	n = strlen((char *)s);
1149	i = 0;
1150	for (j = 0; j < n; j++) {
1151	c = s[j];
1152	if (((c >= 0x20) && c <= 0x7f)
1153	\|\|(c >= 0xa0) \|\| (c == XawTAB0x09) \|\| (c == XawLF0x0a)
1154	\|\| (c == XawESC0x1b)) {
1155	s[i] = c;
1156	i++;
1157	}
1158	}
1159	s[i] = 0;
1160
1161	return ((char *)s);
1162	}
1163	}
1164
1165	/*
1166	* This routine maps an x and y position in a window that is displaying text
1167	* into the corresponding position in the source.
1168	*/
1169	static XawTextPosition
1170	PositionForXY(TextWidget ctx, int x, int y)
1171	{
1172	int fromx, line, width, height;
1173	XawTextPosition position;
1174
1175	if (ctx->text.lt.lines == 0)
1176	return (0);
1177
1178	for (line = 0; line < ctx->text.lt.lines - 1; line++) {
1179	if (y <= ctx->text.lt.info[line + 1].y)
1180	break;
1181	}
1182	position = ctx->text.lt.info[line].position;
1183	if (position >= ctx->text.lastPos)
1184	return (ctx->text.lastPos);
1185	fromx = ctx->text.left_margin;
1186	XawTextSinkFindPosition(ctx->text.sink, position, fromx, x - fromx,
1187	False0, &position, &width, &height);
1188
1189	if (position > ctx->text.lastPos)
1190	return (ctx->text.lastPos);
1191
1192	if (position >= ctx->text.lt.info[line + 1].position)
1193	position = SrcScanXawTextSourceScan(ctx->text.source, ctx->text.lt.info[line + 1].position,
1194	XawstPositions, XawsdLeft, 1, True1);
1195
1196	return (position);
1197	}
1198
1199	/*
1200	* This routine maps a source position in to the corresponding line number
1201	* of the text that is displayed in the window.
1202	*/
1203	static int
1204	LineForPosition(TextWidget ctx, XawTextPosition position)
1205	{
1206	int line;
1207
1208	for (line = 0; line < ctx->text.lt.lines; line++)
1209	if (position < ctx->text.lt.info[line + 1].position)
1210	break;
1211
1212	return (line);
1213	}
1214
1215	/*
1216	* This routine maps a source position into the corresponding line number
1217	* and the x, y coordinates of the text that is displayed in the window.
1218	*/
1219	static Boolint
1220	LineAndXYForPosition(TextWidget ctx, XawTextPosition pos,
1221	int line, int x, int *y)
1222	{
1223	XawTextPosition linePos, endPos;
1224	Boolean visible;
1225	int realW, realH;
1226
1227	*line = 0;
1228	*x = ctx->text.left_margin;
1229	*y = ctx->text.margin.top + 1;
1230	if ((visible = IsPositionVisible(ctx, pos)(pos >= ctx->text.lt.info[0].position && pos < ctx->text.lt.info[ctx->text.lt.lines].position)) != False0) {
1231	*line = LineForPosition(ctx, pos);
1232	y = ctx->text.lt.info[line].y;
1233	linePos = ctx->text.lt.info[*line].position;
1234	XawTextSinkFindDistance(ctx->text.sink, linePos,
1235	*x, pos, &realW, &endPos, &realH);
1236	*x += realW;
1237	}
1238
1239	return (visible);
1240	}
1241
1242	/*
1243	* This routine builds a line table. It does this by starting at the
1244	* specified position and measuring text to determine the staring position
1245	* of each line to be displayed. It also determines and saves in the
1246	* linetable all the required metrics for displaying a given line (e.g.
1247	* x offset, y offset, line length, etc.).
1248	*/
1249	void
1250	_XawTextBuildLineTable(TextWidget ctx, XawTextPosition position,
1251	_XtBooleanBoolean force_rebuild)
1252	{
1253	Dimension height = 0;
1254	int lines = 0;
1255	Cardinal size;
1256
1257	if ((int)XtHeight(ctx)(((RectObj)ctx)->rectangle.height) > VMargins(ctx)((ctx)->text.margin.top + (ctx)->text.margin.bottom)) {
1258	height = XtHeight(ctx)(((RectObj)ctx)->rectangle.height) - VMargins(ctx)((ctx)->text.margin.top + (ctx)->text.margin.bottom);
1259	lines = XawTextSinkMaxLines(ctx->text.sink, height);
1260	}
1261	size = sizeof(XawTextLineTableEntry) * (lines + 1);
1262
1263	if (lines != ctx->text.lt.lines \|\| ctx->text.lt.info == NULL((void*)0)) {
1264	ctx->text.lt.info = (XawTextLineTableEntry *)
1265	XtRealloc((char *)ctx->text.lt.info, size);
1266	ctx->text.lt.lines = lines;
1267	force_rebuild = True1;
1268	}
1269
1270	if (force_rebuild) {
1271	(void)bzero((char )ctx->text.lt.info, size)memset((char )ctx->text.lt.info,0,size);
1272	/* force a text update in the first text line if it is visible */
1273	ctx->text.lt.info[0].position = (XawTextPosition)-1;
1274	}
1275	if (position != ctx->text.lt.info[0].position) {
1276	(void)_BuildLineTable(ctx, position, 0);
1277	ctx->text.clear_to_eol = True1;
1278	}
1279	}
1280
1281	/*
1282	* We may need to resize the line table here, since there maybe lines with
1283	* different fonts (that can be shorter or taller than the default one)
1284	*/
1285	static XawTextPosition
1286	_BuildLineTable(TextWidget ctx, XawTextPosition position, int line)
1287	{
1288	XawTextLineTableEntry *lt = ctx->text.lt.info + line;
1289	XawTextPosition end, update_from = -1;
1290	Position y;
1291	int wwidth, width, height;
1292	#ifndef OLDXAW1
1293	Widget src = ctx->text.source;
1294	#endif
1295	int max_y = (int)XtHeight(ctx)(((RectObj)ctx)->rectangle.height) - (int)ctx->text.margin.bottom;
1296
1297	if (ctx->text.wrap == XawtextWrapNever)
1298	wwidth = 0x7fffffff;
1299	else
1300	wwidth = GetMaxTextWidth(ctx);
1301
1302	/* XXX y may change, due to font size changes. See later */
1303	y = line == 0 ? ctx->text.margin.top : lt->y;
1304
1305	#ifndef OLDXAW1
1306	if (ctx->text.lt.base_line < 0) {
1307	if (line == 0)
1308	ctx->text.lt.top = position;
1309	}
1310	else if (line == 0) {
1311	XawTextPosition pos = ctx->text.lt.top;
1312	int base_line = ctx->text.lt.base_line;
1313
1314	if (position == 0)
1315	base_line = 1;
1316	else if (ctx->text.lt.base_line == 0 \|\|
1317	ctx->text.source_changed == SRC_CHANGE_OVERLAP3) {
1318	pos = 0;
1319	base_line = 1;
1320
1321	while (pos < position) {
1322	pos = SrcScanXawTextSourceScan(src, pos, XawstEOL, XawsdRight, 1, True1);
1323	if (pos <= position) {
1324	++base_line;
1325	if (pos == ctx->text.lastPos) {
1326	base_line -= !_XawTextSourceNewLineAtEOF(src);
1327	break;
1328	}
1329	}
1330	}
1331	}
1332	else if (ctx->text.wrap == XawtextWrapNever
1333	&& IsPositionVisible(ctx, position)(position >= ctx->text.lt.info[0].position && position < ctx->text.lt.info[ctx->text.lt.lines].position))
1334	base_line += LineForPosition(ctx, position);
1335	else if (pos < position) {
1336	while (pos < position) {
1337	pos = SrcScanXawTextSourceScan(src, pos, XawstEOL, XawsdRight, 1, True1);
1338	if (pos <= position) {
1339	++base_line;
1340	if (pos == ctx->text.lastPos) {
1341	base_line -= !_XawTextSourceNewLineAtEOF(src);
1342	break;
1343	}
1344	}
1345	}
1346	}
1347	else if (pos > position) {
1348	while (pos > position) {
1349	pos = SrcScanXawTextSourceScan(src, pos, XawstEOL, XawsdLeft, 1, False0);
1350	if (--pos >= position)
1351	--base_line;
1352	}
1353	}
1354
1355	ctx->text.lt.top = position;
1356	ctx->text.lt.base_line = base_line;
1357	}
1358	#else
1359	if (line == 0)
1360	ctx->text.lt.top = position;
1361	#endif
1362
1363	/* CONSTCOND */
1364	while (True1) {
1365	XawTextSinkFindPosition(ctx->text.sink, position, ctx->text.left_margin,
1366	wwidth, ctx->text.wrap == XawtextWrapWord,
1367	&end, &width, &height);
1368
1369	if (lt->position != position) {
1370	_XawTextNeedsUpdating(ctx, position,
1371	end <= position ? position + 1 : end);
1372	ctx->text.clear_to_eol = True1;
1373	lt->position = position;
1374	}
1375	if (lt->y != y) {
1376	if (update_from < 0)
1377	update_from = line == 0 ?
1378	ctx->text.lt.info[0].position :
1379	ctx->text.lt.info[line - 1].position;
1380	lt->y = y;
1381	ctx->text.clear_to_eol = True1;
1382	}
1383	if (lt->textWidth != width) {
1384	if (lt->textWidth > width)
1385	ctx->text.clear_to_eol = True1;
1386	lt->textWidth = width;
1387	}
1388	y += height;
1389
1390	if (end > ctx->text.lastPos) {
1391	position = end;
1392	ctx->text.clear_to_eol = True1;
1393	_XawTextNeedsUpdating(ctx, end, end + ctx->text.lt.lines - line);
1394	while (line++ < ctx->text.lt.lines) {
1395	if (line > 1 && y > max_y) {
1396	ctx->text.lt.lines = line - 1;
1397	break;
1398	}
1399	++lt;
1400	if (lt->y != y) {
1401	if (update_from < 0)
1402	update_from = line < 2 ?
1403	ctx->text.lt.info[0].position :
1404	ctx->text.lt.info[line - 2].position;
1405	lt->y = y;
1406	}
1407	lt->position = ++position;
1408	lt->textWidth = 0;
1409	y += height;
1410	}
1411	if (update_from >= 0)
1412	_XawTextNeedsUpdating(ctx, update_from,
1413	ctx->text.lt.info[ctx->text.lt.lines].position);
1414	_XawTextSetScrollBars(ctx);
1415
1416	return (ctx->text.lastPos);
1417	}
1418
1419	if (line && y > max_y)
1420	/* will return in the next loop */
1421	ctx->text.lt.lines = line;
1422
1423	if (++line > ctx->text.lt.lines && y < max_y) {
1424	/* grow the line table */
1425	ctx->text.lt.info = (XawTextLineTableEntry *)
1426	XtRealloc((char *)ctx->text.lt.info,
1427	sizeof(XawTextLineTableEntry) * (line + 1));
1428	lt = ctx->text.lt.info + line;
1429	bzero(lt, sizeof(XawTextLineTableEntry))memset(lt,0,sizeof(XawTextLineTableEntry));
1430	++ctx->text.lt.lines;
1431	}
1432	else
1433	++lt;
1434	if (position == end)
1435	++position;
1436	else
1437	position = end;
1438
1439	if (line > ctx->text.lt.lines) {
1440	if (update_from >= 0)
1441	_XawTextNeedsUpdating(ctx, update_from,
1442	ctx->text.lt.info[ctx->text.lt.lines].position);
1443	_XawTextSetScrollBars(ctx);
1444
1445	return (position);
1446	}
1447	}
1448	/NOTREACHED/
1449	}
1450
1451	/*
1452	* Function:
1453	* GetWidestLine
1454	*
1455	* Parameters:
1456	* ctx - text widget
1457	*
1458	* Description:
1459	* Returns the width (in pixels) of the widest line that
1460	* is currently visable.
1461	*
1462	* Returns:
1463	* The width of the widest line
1464	*/
1465	static unsigned int
1466	GetWidestLine(TextWidget ctx)
1467	{
1468	int i;
1469	unsigned int widest;
1470	XawTextLineTablePtr lt = &(ctx->text.lt);
1471
1472	for (i = 0, widest = 0; i < lt->lines; i++)
1473	if (widest < lt->info[i].textWidth)
1474	widest = lt->info[i].textWidth;
1475
1476	return (widest);
1477	}
1478
1479	/*
1480	* This routine is used by Text to notify an associated scrollbar of the
1481	* correct metrics (position and shown fraction) for the text being currently
1482	* displayed in the window.
1483	*/
1484	void
1485	_XawTextSetScrollBars(TextWidget ctx)
1486	{
1487	float first, last, denom, widest;
1488
1489	if (ctx->text.scroll_vert == XawtextScrollAlways) {
1490	if (ctx->text.lastPos == 0)
1491	first = 0.0;
1492	else
1493	first = ctx->text.lt.top / (float)ctx->text.lastPos;
1494
1495	if (ctx->text.lt.info[ctx->text.lt.lines].position < ctx->text.lastPos)
1496	last = ctx->text.lt.info[ctx->text.lt.lines].position /
1497	(float)ctx->text.lastPos;
1498	else
1499	last = 1.0;
1500
1501	XawScrollbarSetThumb(ctx->text.vbar, first, last - first);
1502	}
1503
1504	if (ctx->text.scroll_horiz == XawtextScrollAlways) {
1505	denom = GetWidestLine(ctx);
1506	if (denom <= 0)
1507	denom = (int)XtWidth(ctx)(((RectObj)ctx)->rectangle.width) - RHMargins(ctx)((ctx)->text.r_margin.left + (ctx)->text.r_margin.right );
1508	if (denom <= 0)
1509	denom = 1;
1510	widest = ((int)XtWidth(ctx)(((RectObj)ctx)->rectangle.width) - RHMargins(ctx)((ctx)->text.r_margin.left + (ctx)->text.r_margin.right )) / denom;
1511	first = ctx->text.r_margin.left - ctx->text.left_margin;
1512	first /= denom;
1513
1514	XawScrollbarSetThumb(ctx->text.hbar, first, widest);
1515	}
1516	}
1517
1518	static void
1519	DoCopyArea(TextWidget ctx, int src_x, int src_y,
1520	unsigned int width, unsigned int height, int dst_x, int dst_y)
1521	{
1522	int x1, y1, x2, y2;
1523
1524	x1 = ctx->text.r_margin.left;
1525	y1 = ctx->text.r_margin.top;
1526	x2 = XtWidth(ctx)(((RectObj)ctx)->rectangle.width) - ctx->text.r_margin.right;
1527	y2 = XtHeight(ctx)(((RectObj)ctx)->rectangle.height) - ctx->text.r_margin.bottom;
1528
1529	if (x1 >= x2 \|\| y1 >= y2)
1530	return;
1531
1532	src_x = XawMax(x1, XawMin(src_x, x2))((x1) > (((src_x) < (x2) ? (src_x) : (x2))) ? (x1) : (( (src_x) < (x2) ? (src_x) : (x2))));
1533	src_y = XawMax(y1, XawMin(src_y, y2))((y1) > (((src_y) < (y2) ? (src_y) : (y2))) ? (y1) : (( (src_y) < (y2) ? (src_y) : (y2))));
1534	dst_x = XawMax(x1, XawMin(dst_x, x2))((x1) > (((dst_x) < (x2) ? (dst_x) : (x2))) ? (x1) : (( (dst_x) < (x2) ? (dst_x) : (x2))));
1535	dst_y = XawMax(y1, XawMin(dst_y, y2))((y1) > (((dst_y) < (y2) ? (dst_y) : (y2))) ? (y1) : (( (dst_y) < (y2) ? (dst_y) : (y2))));
1536	width = XawMax(0, XawMin(x2 - dst_x, (int)width))((0) > (((x2 - dst_x) < ((int)width) ? (x2 - dst_x) : ( (int)width))) ? (0) : (((x2 - dst_x) < ((int)width) ? (x2 - dst_x) : ((int)width))));
1537	height = XawMax(0, XawMin(y2 - dst_y, (int)height))((0) > (((y2 - dst_y) < ((int)height) ? (y2 - dst_y) : ( (int)height))) ? (0) : (((y2 - dst_y) < ((int)height) ? (y2 - dst_y) : ((int)height))));
1538
1539	XCopyArea(XtDisplay(ctx)(((ctx)->core.screen)->display), XtWindow(ctx)((ctx)->core.window), XtWindow(ctx)((ctx)->core.window), ctx->text.gc,
1540	src_x, src_y, width, height, dst_x, dst_y);
1541	}
1542
1543	/*
1544	* Function:
1545	* XawTextScroll
1546	*
1547	* Parameters:
1548	* ctx - text widget
1549	* vlines - number of lines to scroll vertically
1550	* hpixels - number of pixels to scroll horizontally
1551	*
1552	* Description:
1553	* Generic function for scrolling the text window.
1554	* Allows vertical and horizontal scroll at the same time.
1555	*/
1556	void
1557	XawTextScroll(TextWidget ctx, int vlines, int hpixels)
1558	{
1559	XawTextPosition top, tmp, update_from, update_to;
1560	XawTextLineTable *lt;
1561	Arg arglist[1];
1562	int y0, y1, y2, count, dim, wwidth, lines = ctx->text.lt.lines;
1563	int vwidth, vheight; /* visible width and height */
1564	Boolint scroll;
1565
1566	vwidth = (int)XtWidth(ctx)(((RectObj)ctx)->rectangle.width) - RHMargins(ctx)((ctx)->text.r_margin.left + (ctx)->text.r_margin.right );
1567	vheight = (int)XtHeight(ctx)(((RectObj)ctx)->rectangle.height) - RVMargins(ctx)((ctx)->text.r_margin.top + (ctx)->text.r_margin.bottom );
1568	lt = &ctx->text.lt;
1569
1570	if (!lt \|\| vwidth <= 0 \|\| vheight <= 0)
1571	return;
1572
1573	if ((scroll = ctx->core.background_pixmap == XtUnspecifiedPixmap((Pixmap)2)) == True1) {
1574	dim = lt->info[1].y - lt->info[0].y;
1575	for (count = 1; count < lt->lines - 1; count++)
1576	if (lt->info[count + 1].y - lt->info[count].y != dim) {
1577	scroll = False0;
1578	break;
1579	}
1580	}
1581
1582	wwidth = GetMaxTextWidth(ctx);
1583
1584	/*
1585	* Do the horizontall scrolling
1586	*/
1587	if (hpixels < 0 && ctx->text.left_margin - hpixels > ctx->text.r_margin.left)
1588	hpixels = ctx->text.left_margin - ctx->text.r_margin.left;
1589	ctx->text.left_margin -= hpixels;
1590
1591	update_from = lt->top; /* remember the old value */
1592	/*
1593	* Checks the requested number of lines and calculates the top
1594	* of the line table
1595	*/
1596	if (vlines < 0) { /* VScroll Up */
1597	if (IsPositionVisible(ctx, 0)(0 >= ctx->text.lt.info[0].position && 0 < ctx ->text.lt.info[ctx->text.lt.lines].position))
1598	vlines = 0;
1599	else if (ctx->text.wrap != XawtextWrapNever) {
1600	XawTextPosition end;
1601	int n_lines = 0;
1602
1603	count = -vlines;
1604	end = lt->top;
1605	while (n_lines < count) {
1606	top = SrcScanXawTextSourceScan(ctx->text.source, end, XawstEOL,
1607	XawsdLeft, 2, False0);
1608	n_lines += CountLines(ctx, top, end);
1609	end = top;
1610	}
1611
1612	while (count++ < n_lines) {
1613	tmp = top;
1614	XawTextSinkFindPosition(ctx->text.sink, top,
1615	ctx->text.left_margin,
1616	wwidth,ctx->text.wrap == XawtextWrapWord,
1617	&top, &dim, &dim);
1618	if (tmp == top)
1619	++top;
1620	}
1621	}
1622	else
1623	top = SrcScanXawTextSourceScan(ctx->text.source, lt->top, XawstEOL,
1624	XawsdLeft, -vlines + 1, False0);
1625	if (-vlines >= ctx->text.lt.lines)
1626	scroll = False0;
1627	}
1628	else if (vlines > 0) { /* VScroll Down */
1629	if (LineForPosition(ctx, ctx->text.lastPos) == 0)
1630	vlines = 0;
1631	if (vlines < lt->lines)
1632	top = XawMin(lt->info[vlines].position, ctx->text.lastPos)((lt->info[vlines].position) < (ctx->text.lastPos) ? (lt->info[vlines].position) : (ctx->text.lastPos));
1633	else if (ctx->text.wrap == XawtextWrapNever)
1634	top = SrcScanXawTextSourceScan(ctx->text.source,
1635	SrcScanXawTextSourceScan(ctx->text.source, lt->top,
1636	XawstEOL, XawsdRight, vlines,
1637	True1),
1638	XawstEOL, XawsdLeft, 1, False0);
1639	else {
1640	top = lt->top;
1641	count = 0;
1642	while (count++ < vlines) {
1643	tmp = top;
1644	XawTextSinkFindPosition(ctx->text.sink, top,
1645	ctx->text.left_margin,
1646	wwidth, ctx->text.wrap == XawtextWrapWord,
1647	&top, &dim, &dim);
1648	if (tmp == top)
1649	++top;
1650	}
1651	}
1652	if (vlines >= ctx->text.lt.lines
1653	\|\| lt->info[vlines].position >= ctx->text.lastPos)
1654	scroll = False0;
1655	}
1656
1657	if (!vlines) {
1658	if (hpixels) {
1659	ClearWindow(ctx)_XawTextNeedsUpdating((ctx), (ctx)->text.lt.top, (ctx)-> text.lt.info[ctx->text.lt.lines].position);
1660	ctx->text.clear_to_eol = True1;
1661	}
1662	_XawTextSetScrollBars(ctx);
1663	return;
1664	}
1665
1666	/* Flushes any pending updates. Normally, there may be a call to
1667	* XawTextUnsetSelection not yet updated.
1668	*/
1669	if (!hpixels && scroll) {
1670	ctx->text.clear_to_eol = True1;
1671	FlushUpdate(ctx);
1672	}
1673
1674	/*
1675	* Rebuild the line table, doing the vertical scroll
1676	*/
1677	(void)_BuildLineTable(ctx, top, 0);
1678	lt = &ctx->text.lt;
1679	if (scroll) {
1680	for (count = 0; count < lt->lines - 1; count++)
1681	if (lt->info[count + 1].y - lt->info[count].y != dim) {
1682	scroll = False0;
1683	break;
1684	}
1685	}
1686
1687	XtSetArg(arglist[0], XtNinsertPosition, lt->top + lt->lines)((void)( (arglist[0]).name = (((char*)&XtStrings[326])), ( arglist[0]).value = (XtArgVal)(lt->top + lt->lines) ));
1688	_XawImSetValues((Widget)ctx, arglist, 1);
1689
1690	if (hpixels \|\| !scroll \|\| lines != lt->lines)
1691	return;
1692
1693	/* _BuildLineTable updates everything if the top position changes.
1694	* It is not required here.
1695	*/
1696	(void)XmuScanlineXor(ctx->text.update, ctx->text.update);
1697	if (vlines < 0 && IsPositionVisible(ctx, 0)(0 >= ctx->text.lt.info[0].position && 0 < ctx ->text.lt.info[ctx->text.lt.lines].position))
1698	vlines = -LineForPosition(ctx, update_from);
1699
1700	y0 = ctx->text.r_margin.top;
1701	if (vlines < 0) {
1702	update_from = lt->top;
1703	update_to = lt->info[-vlines + 1].position - 1;
1704	y1 = lt->info[lt->lines + vlines].y;
1705	y2 = lt->info[-vlines].y;
1706	DoCopyArea(ctx, ctx->text.r_margin.left, y0, vwidth,
1707	y1 - y0,
1708	ctx->text.r_margin.left, y2);
1709	}
1710	else {
1711	update_from = lt->info[lt->lines - vlines].position;
1712	update_to = lt->info[lt->lines].position;
1713	y1 = lt->info[lt->lines - vlines].y;
	Value stored to 'y1' is never read
1714	y2 = lt->info[vlines].y;
1715	DoCopyArea(ctx, ctx->text.r_margin.left, y2,
1716	vwidth, lt->info[lt->lines].y - y2,
1717	ctx->text.r_margin.left, y0);
1718	}
1719	_XawTextNeedsUpdating(ctx, update_from, update_to);
1720	ctx->text.clear_to_eol = True1;
1721	}
1722
1723	/*
1724	* The routine will scroll the displayed text by lines. If the arg is
1725	* positive, move up; otherwise, move down. [note: this is really a private
1726	* procedure but is used in multiple modules].
1727	*/
1728	void
1729	_XawTextVScroll(TextWidget ctx, int n)
1730	{
1731	XawTextScroll(ctx, n, 0);
1732	}
1733
1734	/ARGSUSED/
1735	static void
1736	HScroll(Widget w, XtPointer closure, XtPointer callData)
1737	{
1738	TextWidget ctx = (TextWidget)closure;
1739	long pixels = (long)callData;
1740
1741	if (pixels > 0) {
1742	long max;
1743
1744	max = (int)GetWidestLine(ctx) + ctx->text.left_margin -
1745	ctx->text.r_margin.left;
1746	max = XawMax(0, max)((0) > (max) ? (0) : (max));
1747	pixels = XawMin(pixels, max)((pixels) < (max) ? (pixels) : (max));
1748	}
1749
1750	if (pixels) {
1751	_XawTextPrepareToUpdate(ctx);
1752	XawTextScroll(ctx, 0, pixels);
1753	_XawTextExecuteUpdate(ctx);
1754	}
1755	}
1756
1757	/ARGSUSED/
1758	static void
1759	HJump(Widget w, XtPointer closure, XtPointer callData)
1760	{
1761	TextWidget ctx = (TextWidget)closure;
1762	float percent = (float )callData;
1763	long pixels;
1764
1765	pixels = ctx->text.left_margin -
1766	(ctx->text.r_margin.left - (int)(percent * GetWidestLine(ctx)));
1767
1768	HScroll(w, (XtPointer)ctx, (XtPointer)pixels);
1769	}
1770
1771	/*
1772	* Function:
1773	* UpdateTextInLine
1774	*
1775	* Parameters:
1776	* ctx - text widget
1777	* line - line to update
1778	* x1 - left pixel
1779	* x2 - right pixel
1780	*
1781	* Description:
1782	* Updates the text in the given line and pixel interval
1783	*/
1784	static void
1785	UpdateTextInLine(TextWidget ctx, int line, int x1, int x2)
1786	{
1787	XawTextLineTableEntry *lt = ctx->text.lt.info + line;
1788	XawTextPosition left, right;
1789	int from_x, width, height;
1790
1791	if (lt->position >= ctx->text.lastPos
1792	\|\| ctx->text.left_margin > x2
1793	\|\| (int)lt->textWidth + ctx->text.left_margin < x1) {
1794	/* Mark line to be cleared */
1795	if (ctx->text.clear_to_eol)
1796	_XawTextNeedsUpdating(ctx, lt->position, lt->position + 1);
1797	return;
1798	}
1799
1800	from_x = ctx->text.left_margin;
1801	XawTextSinkFindPosition(ctx->text.sink, lt->position,
1802	from_x, x1 - from_x,
1803	False0, &left, &width, &height);
1804	if (line == ctx->text.lt.lines)
1805	right = -1;
1806	else if (x2 >= lt->textWidth - from_x)
1807	right = lt[1].position - 1;
1808	else {
1809	from_x += width;
1810	XawTextSinkFindPosition(ctx->text.sink, left,
1811	from_x, x2 - from_x,
1812	False0, &right, &width, &height);
1813	}
1814
1815	if ((right < 0) \|\| (right + 1 <= lt[1].position))
1816	++right;
1817
1818	/* Mark text interval to be repainted */
1819	_XawTextNeedsUpdating(ctx, left, right);
1820	}
1821
1822	/*
1823	* The routine will scroll the displayed text by pixels. If the calldata is
1824	* positive, move up; otherwise, move down.
1825	*/
1826	/ARGSUSED/
1827	static void
1828	VScroll(Widget w, XtPointer closure, XtPointer callData)
1829	{
1830	TextWidget ctx = (TextWidget)closure;
1831	long height, lines = (long)callData;
1832
1833	height = XtHeight(ctx)(((RectObj)ctx)->rectangle.height) - VMargins(ctx)((ctx)->text.margin.top + (ctx)->text.margin.bottom);
1834	if (height < 1)
1835	height = 1;
1836	lines = (lines * ctx->text.lt.lines) / height;
1837	_XawTextPrepareToUpdate(ctx);
1838	XawTextScroll(ctx, lines, 0);
1839	_XawTextExecuteUpdate(ctx);
1840	}
1841
1842	/ARGSUSED/
1843	static void
1844	VJump(Widget w, XtPointer closure, XtPointer callData)
1845	{
1846	float percent = (float )callData;
1847	TextWidget ctx = (TextWidget)closure;
1848	XawTextPosition top, last, position, tmp;
1849	XawTextLineTable *lt = &(ctx->text.lt);
1850	int dim, vlines = 0, wwidth = GetMaxTextWidth(ctx);
1851	Boolint scroll = True1;
1852
1853	position = percent * ctx->text.lastPos;
1854	top = lt->top;
1855
1856	if (!lt->lines \|\| (position >= lt->top && position < lt->info[1].position)) {
1857	_XawTextSetScrollBars(ctx);
1858	return;
1859	}
1860
1861	#ifndef OLDXAW1
1862	ctx->text.lt.base_line = -1;
1863	#endif
1864
1865	if (position > lt->top) { /* VScroll Up */
1866	if (position > lt->top && position < lt->info[lt->lines].position)
1867	vlines = LineForPosition(ctx, position);
1868	else {
1869	scroll = False0;
1870	top = SrcScanXawTextSourceScan(ctx->text.source, position, XawstEOL,
1871	XawsdLeft, 1, False0);
1872	if (ctx->text.wrap != XawtextWrapNever) {
1873	last = top;
1874	while (last < position) {
1875	tmp = last;
1876	XawTextSinkFindPosition(ctx->text.sink, last,
1877	ctx->text.left_margin, wwidth,
1878	ctx->text.wrap == XawtextWrapWord,
1879	&last, &dim, &dim);
1880	if (last == tmp)
1881	++last;
1882	if (last < position)
1883	top = last;
1884	}
1885	}
1886	}
1887	}
1888	else { /* VScroll Down */
1889	/*
1890	* Calculates the number of lines
1891	*/
1892	while (top > position) {
1893	last = top;
1894	top = SrcScanXawTextSourceScan(ctx->text.source, top, XawstEOL,
1895	XawsdLeft, 2, False0);
1896	vlines -= CountLines(ctx, top, last);
1897	if (-vlines >= ctx->text.lt.lines) {
1898	scroll = False0;
1899	top = SrcScanXawTextSourceScan(ctx->text.source, position, XawstEOL,
1900	XawsdLeft, 1, False0);
1901	break;
1902	}
1903	}
1904	/*
1905	* Normalize
1906	*/
1907	if (ctx->text.wrap != XawtextWrapNever) {
1908	last = top;
1909	while (last < position) {
1910	tmp = last;
1911	XawTextSinkFindPosition(ctx->text.sink, last,
1912	ctx->text.left_margin,
1913	wwidth,
1914	ctx->text.wrap == XawtextWrapWord,
1915	&last, &dim, &dim);
1916	if (last == tmp)
1917	++last;
1918	if (last < position)
1919	top = last;
1920	++vlines;
1921	}
1922	}
1923	}
1924
1925	if (vlines \|\| !scroll) {
1926	_XawTextPrepareToUpdate(ctx);
1927	if (scroll)
1928	XawTextScroll(ctx, vlines, 0);
1929	else
1930	_BuildLineTable(ctx, top, 0);
1931	_XawTextExecuteUpdate(ctx);
1932	}
1933	}
1934
1935	static Boolint
1936	MatchSelection(Atom selection, XawTextSelection *s)
1937	{
1938	Atom *match;
1939	int count;
1940
1941	for (count = 0, match = s->selections; count < s->atom_count;
1942	match++, count++)
1943	if (*match == selection)
1944	return (True1);
1945
1946	return (False0);
1947	}
1948
1949	static Boolean
1950	TextConvertSelection(Widget w, Atom selection, Atom target, Atom *type,
1951	XtPointer value, unsigned long length, int *format)
1952	{
1953	Display *d = XtDisplay(w)(((w)->core.screen)->display);
1954	TextWidget ctx = (TextWidget)w;
1955	Widget src = ctx->text.source;
1956	XawTextEditType edit_mode;
1957	Arg args[1];
1958	XawTextSelectionSalt salt = NULL((void)0);
1959	XawTextSelection *s;
1960
1961	if (*target == XA_TARGETS(d)XmuInternAtom(d, _XA_TARGETS)) {
1962	Atom targetP, std_targets;
1963	unsigned long std_length;
1964
1965	if (SrcCvtSelXawTextSourceConvertSelection(src, selection, target, type, value, length, format))
1966	return (True1);
1967
1968	XtSetArg(args[0], XtNeditType, &edit_mode)((void)( (args[0]).name = (((char*)&XtStrings[185])), (args [0]).value = (XtArgVal)(&edit_mode) ));
1969	XtGetValues(src, args, ONE((Cardinal)1));
1970
1971	XmuConvertStandardSelection(w, ctx->text.time, selection,
1972	target, type, (XPointer*)&std_targets,
1973	&std_length, format);
1974
1975	*length = 7 + (edit_mode == XawtextEdit) + std_length;
1976	value = XtMalloc((unsigned)sizeof(Atom)(*length));
1977	targetP = (Atom*)value;
1978	*targetP++ = XA_STRING((Atom) 31);
1979	*targetP++ = XA_TEXT(d)XmuInternAtom(d, _XA_TEXT);
1980	*targetP++ = XA_UTF8_STRING(d)XmuInternAtom(d, _XA_UTF8_STRING);
1981	*targetP++ = XA_COMPOUND_TEXT(d)XmuInternAtom(d, _XA_COMPOUND_TEXT);
1982	*targetP++ = XA_LENGTH(d)XmuInternAtom(d, _XA_LENGTH);
1983	*targetP++ = XA_LIST_LENGTH(d)XmuInternAtom(d, _XA_LIST_LENGTH);
1984	*targetP++ = XA_CHARACTER_POSITION(d)XmuInternAtom(d, _XA_CHARACTER_POSITION);
1985	if (edit_mode == XawtextEdit) {
1986	*targetP++ = XA_DELETE(d)XmuInternAtom(d, _XA_DELETE);
1987	}
1988	(void)memmove((char)targetP, (char)std_targets,
1989	sizeof(Atom) * std_length);
1990	XtFree((char*)std_targets);
1991	*type = XA_ATOM((Atom) 4);
1992	*format = 32;
1993	return (True1);
1994	}
1995
1996	if (SrcCvtSelXawTextSourceConvertSelection(src, selection, target, type, value, length, format))
1997	return (True1);
1998
1999	if (MatchSelection(*selection, &ctx->text.s))
2000	s = &ctx->text.s;
2001	else {
2002	for (salt = ctx->text.salt; salt; salt = salt->next)
2003	if (MatchSelection(*selection, &salt->s))
2004	break;
2005	if (!salt)
2006	return (False0);
2007	s = &salt->s;
2008	}
2009	if (*target == XA_STRING((Atom) 31)
2010	\|\| *target == XA_TEXT(d)XmuInternAtom(d, _XA_TEXT)
2011	\|\| *target == XA_UTF8_STRING(d)XmuInternAtom(d, _XA_UTF8_STRING)
2012	\|\| *target == XA_COMPOUND_TEXT(d)XmuInternAtom(d, _XA_COMPOUND_TEXT)) {
2013	if (*target == XA_TEXT(d)XmuInternAtom(d, _XA_TEXT)) {
2014	if (XawTextFormat(ctx, XawFmtWide)((unsigned long)_XawTextFormat(ctx) == (XawFmtWide)))
2015	*type = XA_COMPOUND_TEXT(d)XmuInternAtom(d, _XA_COMPOUND_TEXT);
2016	else
2017	*type = XA_STRING((Atom) 31);
2018	}
2019	else
2020	type = target;
2021	/*
2022	* If salt is True, the salt->contents stores CT string,
2023	* its length is measured in bytes.
2024	* Refer to _XawTextSaltAwaySelection().
2025	*
2026	* by Li Yuhong, Mar. 20, 1991.
2027	*/
2028	if (!salt) {
2029	*value = _XawTextGetSTRING(ctx, s->left, s->right);
2030	if (XawTextFormat(ctx, XawFmtWide)((unsigned long)_XawTextFormat(ctx) == (XawFmtWide))) {
2031	XTextProperty textprop;
2032	if (XwcTextListToTextProperty(d, (wchar_t **)value, 1,
2033	XCompoundTextStyle, &textprop)
2034	< Success0) {
2035	XtFree((char )value);
2036	return (False0);
2037	}
2038	XtFree((char )value);
2039	*value = (XtPointer)textprop.value;
2040	*length = textprop.nitems;
2041	}
2042	else
2043	length = strlen((char )*value);
2044	}
2045	else {
2046	value = XtMalloc((salt->length + 1) sizeof(unsigned char));
2047	strcpy ((char )value, salt->contents);
2048	*length = salt->length;
2049	}
2050	/* Got value,length, now in COMPOUND_TEXT format. */
2051	if (XawTextFormat(ctx, XawFmtWide)((unsigned long)_XawTextFormat(ctx) == (XawFmtWide)) && *type == XA_STRING((Atom) 31)) {
2052	XTextProperty textprop;
2053	wchar_t **wlist;
2054	int count;
2055
2056	textprop.encoding = XA_COMPOUND_TEXT(d)XmuInternAtom(d, _XA_COMPOUND_TEXT);
2057	textprop.value = (unsigned char )value;
2058	textprop.nitems = strlen(*value);
2059	textprop.format = 8;
2060	if (XwcTextPropertyToTextList(d, &textprop, &wlist, &count)
2061	< Success0
2062	\|\| count < 1) {
2063	XtFree((char )value);
2064	return (False0);
2065	}
2066	XtFree((char )value);
2067	if (XwcTextListToTextProperty(d, wlist, 1, XStringStyle, &textprop)
2068	< Success0) {
2069	XwcFreeStringList((wchar_t**) wlist);
2070	return (False0);
2071	}
2072	*value = (XtPointer)textprop.value;
2073	*length = textprop.nitems;
2074	XwcFreeStringList(wlist);
2075	} else if (*type == XA_UTF8_STRING(d)XmuInternAtom(d, _XA_UTF8_STRING)) {
2076	XTextProperty textprop;
2077	char **list;
2078	int count;
2079
2080	textprop.encoding = XA_COMPOUND_TEXT(d)XmuInternAtom(d, _XA_COMPOUND_TEXT);
2081	textprop.value = (unsigned char )value;
2082	textprop.nitems = strlen(*value);
2083	textprop.format = 8;
2084	if (Xutf8TextPropertyToTextList(d, &textprop, &list, &count)
2085	< Success0
2086	\|\| count < 1) {
2087	XtFree((char )value);
2088	return (False0);
2089	}
2090	XtFree((char )value);
2091	value = list;
2092	length = strlen(list);
2093	XFree(list);
2094	}
2095	*format = 8;
2096	return (True1);
2097	}
2098
2099	if ((target == XA_LIST_LENGTH(d)XmuInternAtom(d, _XA_LIST_LENGTH)) \|\| (target == XA_LENGTH(d)XmuInternAtom(d, _XA_LENGTH))) {
2100	long * temp;
2101
2102	temp = (long *)XtMalloc((unsigned)sizeof(long));
2103	if (*target == XA_LIST_LENGTH(d)XmuInternAtom(d, _XA_LIST_LENGTH))
2104	*temp = 1L;
2105	else /* target == XA_LENGTH(d) /
2106	*temp = (long) (s->right - s->left);
2107
2108	*value = (XPointer)temp;
2109	*type = XA_INTEGER((Atom) 19);
2110	*length = 1L;
2111	*format = 32;
2112	return (True1);
2113	}
2114
2115	if (*target == XA_CHARACTER_POSITION(d)XmuInternAtom(d, _XA_CHARACTER_POSITION)) {
2116	long * temp;
2117
2118	temp = (long )XtMalloc((unsigned)(2 sizeof(long)));
2119	temp[0] = (long)(s->left + 1);
2120	temp[1] = s->right;
2121	*value = (XPointer)temp;
2122	*type = XA_SPAN(d)XmuInternAtom(d, _XA_SPAN);
2123	*length = 2L;
2124	*format = 32;
2125	return (True1);
2126	}
2127
2128	if (*target == XA_DELETE(d)XmuInternAtom(d, _XA_DELETE)) {
2129	if (!salt)
2130	_XawTextZapSelection(ctx, NULL((void*)0), True1);
2131	value = NULL((void)0);
2132	*type = XA_NULL(d)XmuInternAtom(d, _XA_NULL);
2133	*length = 0;
2134	*format = 32;
2135	return (True1);
2136	}
2137
2138	if (XmuConvertStandardSelection(w, ctx->text.time, selection, target, type,
2139	(XPointer *)value, length, format))
2140	return (True1);
2141
2142	/* else */
2143	return (False0);
2144	}
2145
2146	/*
2147	* Function:
2148	* GetCutBuffferNumber
2149	*
2150	* Parameters:
2151	* atom - atom to check
2152	*
2153	* Description:
2154	* Returns the number of the cut buffer.
2155	*
2156	* Returns:
2157	* The number of the cut buffer representing this atom or NOT_A_CUT_BUFFER
2158	*/
2159	#define NOT_A_CUT_BUFFER-1 -1
2160	static int
2161	GetCutBufferNumber(Atom atom)
2162	{
2163	if (atom == XA_CUT_BUFFER0((Atom) 9)) return (0);
2164	if (atom == XA_CUT_BUFFER1((Atom) 10)) return (1);
2165	if (atom == XA_CUT_BUFFER2((Atom) 11)) return (2);
2166	if (atom == XA_CUT_BUFFER3((Atom) 12)) return (3);
2167	if (atom == XA_CUT_BUFFER4((Atom) 13)) return (4);
2168	if (atom == XA_CUT_BUFFER5((Atom) 14)) return (5);
2169	if (atom == XA_CUT_BUFFER6((Atom) 15)) return (6);
2170	if (atom == XA_CUT_BUFFER7((Atom) 16)) return (7);
2171	return (NOT_A_CUT_BUFFER-1);
2172	}
2173
2174	static void
2175	TextLoseSelection(Widget w, Atom *selection)
2176	{
2177	TextWidget ctx = (TextWidget)w;
2178	Atom *atomP;
2179	int i;
2180	XawTextSelectionSaltsalt, prevSalt, *nextSalt;
2181
2182	atomP = ctx->text.s.selections;
2183	for (i = 0 ; i < ctx->text.s.atom_count; i++, atomP++)
2184	if ((selection == atomP)
2185	\|\| (GetCutBufferNumber(*atomP) != NOT_A_CUT_BUFFER-1))
2186	*atomP = (Atom)0;
2187
2188	while (ctx->text.s.atom_count
2189	&& ctx->text.s.selections[ctx->text.s.atom_count - 1] == 0)
2190	ctx->text.s.atom_count--;
2191
2192	/*
2193	* Must walk the selection list in opposite order from UnsetSelection
2194	*/
2195	atomP = ctx->text.s.selections;
2196	for (i = 0 ; i < ctx->text.s.atom_count; i++, atomP++)
2197	if (*atomP == (Atom)0) {
2198	*atomP = ctx->text.s.selections[--ctx->text.s.atom_count];
2199	while (ctx->text.s.atom_count
2200	&& ctx->text.s.selections[ctx->text.s.atom_count-1] == 0)
2201	ctx->text.s.atom_count--;
2202	}
2203
2204	if (ctx->text.s.atom_count == 0)
2205	ModifySelection(ctx, ctx->text.insertPos, ctx->text.insertPos);
2206
2207	prevSalt = 0;
2208	for (salt = ctx->text.salt; salt; salt = nextSalt) {
2209	atomP = salt->s.selections;
2210	nextSalt = salt->next;
2211	for (i = 0 ; i < salt->s.atom_count; i++, atomP++)
2212	if (selection == atomP)
2213	*atomP = (Atom)0;
2214
2215	while (salt->s.atom_count
2216	&& salt->s.selections[salt->s.atom_count-1] == 0)
2217	salt->s.atom_count--;
2218
2219	/*
2220	* Must walk the selection list in opposite order from UnsetSelection
2221	*/
2222	atomP = salt->s.selections;
2223	for (i = 0 ; i < salt->s.atom_count; i++, atomP++)
2224	if (*atomP == (Atom)0) {
2225	*atomP = salt->s.selections[--salt->s.atom_count];
2226	while (salt->s.atom_count
2227	&& salt->s.selections[salt->s.atom_count-1] == 0)
2228	salt->s.atom_count--;
2229	}
2230
2231	if (salt->s.atom_count == 0) {
2232	XtFree ((char *) salt->s.selections);
2233	XtFree (salt->contents);
2234	if (prevSalt)
2235	prevSalt->next = nextSalt;
2236	else
2237	ctx->text.salt = nextSalt;
2238	XtFree((char *)salt);
2239	}
2240	else
2241	prevSalt = salt;
2242	}
2243	}
2244
2245	void
2246	_XawTextSaltAwaySelection(TextWidget ctx, Atom *selections, int num_atoms)
2247	{
2248	XawTextSelectionSalt *salt;
2249	int i, j;
2250
2251	for (i = 0; i < num_atoms; i++)
2252	TextLoseSelection((Widget)ctx, selections + i);
2253	if (num_atoms == 0)
2254	return;
2255	salt = (XawTextSelectionSalt *)
2256	XtMalloc((unsigned)sizeof(XawTextSelectionSalt));
2257	if (!salt)
2258	return;
2259	salt->s.selections = (Atom )XtMalloc((unsigned)(num_atoms sizeof(Atom)));
2260	if (!salt->s.selections) {
2261	XtFree((char *)salt);
2262	return;
2263	}
2264	salt->s.left = ctx->text.s.left;
2265	salt->s.right = ctx->text.s.right;
2266	salt->s.type = ctx->text.s.type;
2267	salt->contents = _XawTextGetSTRING(ctx, ctx->text.s.left, ctx->text.s.right);
2268	if (XawTextFormat(ctx, XawFmtWide)((unsigned long)_XawTextFormat(ctx) == (XawFmtWide))) {
2269	XTextProperty textprop;
2270	if (XwcTextListToTextProperty(XtDisplay((Widget)ctx)((((Widget)ctx)->core.screen)->display),
2271	(wchar_t**)(&(salt->contents)), 1,
2272	XCompoundTextStyle,
2273	&textprop) < Success0) {
2274	XtFree(salt->contents);
2275	salt->length = 0;
2276	return;
2277	}
2278	XtFree(salt->contents);
2279	salt->contents = (char *)textprop.value;
2280	salt->length = textprop.nitems;
2281	}
2282	else
2283	salt->length = strlen (salt->contents);
2284	salt->next = ctx->text.salt;
2285	ctx->text.salt = salt;
2286	j = 0;
2287	for (i = 0; i < num_atoms; i++) {
2288	if (GetCutBufferNumber (selections[i]) == NOT_A_CUT_BUFFER-1) {
2289	salt->s.selections[j++] = selections[i];
2290	XtOwnSelection((Widget)ctx, selections[i], ctx->text.time,
2291	TextConvertSelection, TextLoseSelection, NULL((void*)0));
2292	}
2293	}
2294	salt->s.atom_count = j;
2295	}
2296
2297	static void
2298	_SetSelection(TextWidget ctx, XawTextPosition left, XawTextPosition right,
2299	Atom *selections, Cardinal count)
2300	{
2301	#ifndef OLDXAW1
2302	Cardinal i;
2303	XawTextPosition pos;
2304	TextSrcObject src = (TextSrcObject)ctx->text.source;
2305
2306	for (i = 0; i < src->textSrc.num_text; i++) {
2307	TextWidget tw = (TextWidget)src->textSrc.text[i];
2308	Boolint needs_updating = tw->text.old_insert < 0;
2309	Boolint showposition = tw->text.showposition;
2310
2311	if (needs_updating) {
2312	tw->text.showposition = False0;
2313	_XawTextPrepareToUpdate(tw);
2314	}
2315	#else
2316	TextWidget tw = ctx;
2317	XawTextPosition pos;
2318	#endif /* OLDXAW */
2319
2320	if (left < tw->text.s.left) {
2321	pos = Min(right, tw->text.s.left)(((right) < (tw->text.s.left)) ? (right) : (tw->text .s.left));
2322	_XawTextNeedsUpdating(tw, left, pos);
2323	}
2324	if (left > tw->text.s.left) {
2325	pos = Min(left, tw->text.s.right)(((left) < (tw->text.s.right)) ? (left) : (tw->text. s.right));
2326	_XawTextNeedsUpdating(tw, tw->text.s.left, pos);
2327	}
2328	if (right < tw->text.s.right) {
2329	pos = Max(right, tw->text.s.left)(((right) > (tw->text.s.left)) ? (right) : (tw->text .s.left));
2330	_XawTextNeedsUpdating(tw, pos, tw->text.s.right);
2331	}
2332	if (right > tw->text.s.right) {
2333	pos = Max(left, tw->text.s.right)(((left) > (tw->text.s.right)) ? (left) : (tw->text. s.right));
2334	_XawTextNeedsUpdating(tw, pos, right);
2335	}
2336
2337	tw->text.s.left = left;
2338	tw->text.s.right = right;
2339
2340	#ifndef OLDXAW1
2341	if (needs_updating) {
2342	_XawTextExecuteUpdate(tw);
2343	tw->text.showposition = showposition;
2344	}
2345	}
2346	#endif /* OLDXAW */
2347
2348	SrcSetSelectionXawTextSourceSetSelection(ctx->text.source, left, right,
2349	(count == 0) ? None0L : selections[0]);
2350
2351	if (left < right) {
2352	Widget w = (Widget)ctx;
2353	int buffer;
2354
2355	while (count) {
2356	Atom selection = selections[--count];
2357
2358	/*
2359	* If this is a cut buffer
2360	*/
2361	if ((buffer = GetCutBufferNumber(selection)) != NOT_A_CUT_BUFFER-1) {
2362	unsigned char ptr, tptr;
2363	unsigned int amount, max_len = MAX_CUT_LEN(XtDisplay(w))(XMaxRequestSize((((w)->core.screen)->display)) - 64);
2364	unsigned long len;
2365
2366	tptr= ptr= (unsigned char *)_XawTextGetSTRING(ctx,
2367	ctx->text.s.left,
2368	ctx->text.s.right);
2369	if (XawTextFormat(ctx, XawFmtWide)((unsigned long)_XawTextFormat(ctx) == (XawFmtWide))) {
2370	/*
2371	* Only XA_STRING(Latin 1) is allowed in CUT_BUFFER,
2372	* so we get it from wchar string, then free the wchar string
2373	*/
2374	XTextProperty textprop;
2375
2376	if (XwcTextListToTextProperty(XtDisplay(w)(((w)->core.screen)->display), (wchar_t**)&ptr,
2377	1, XStringStyle, &textprop)
2378	< Success0){
2379	XtFree((char *)ptr);
2380	return;
2381	}
2382	XtFree((char *)ptr);
2383	tptr = ptr = textprop.value;
2384	}
2385	if (buffer == 0) {
2386	_CreateCutBuffers(XtDisplay(w)(((w)->core.screen)->display));
2387	XRotateBuffers(XtDisplay(w)(((w)->core.screen)->display), 1);
2388	}
2389	amount = Min ((len = strlen((char )ptr)), max_len)((((len = strlen((char )ptr))) < (max_len)) ? ((len = strlen ((char *)ptr))) : (max_len));
2390	XChangeProperty(XtDisplay(w)(((w)->core.screen)->display), RootWindow(XtDisplay(w), 0)((&((_XPrivDisplay)(((w)->core.screen)->display))-> screens[0])->root),
2391	selection, XA_STRING((Atom) 31), 8, PropModeReplace0,
2392	ptr, amount);
2393
2394	while (len > max_len) {
2395	len -= max_len;
2396	tptr += max_len;
2397	amount = Min (len, max_len)(((len) < (max_len)) ? (len) : (max_len));
2398	XChangeProperty(XtDisplay(w)(((w)->core.screen)->display), RootWindow(XtDisplay(w), 0)((&((_XPrivDisplay)(((w)->core.screen)->display))-> screens[0])->root),
2399	selection, XA_STRING((Atom) 31), 8, PropModeAppend2,
2400	tptr, amount);
2401	}
2402	XtFree ((char *)ptr);
2403	}
2404	else /* This is a real selection */
2405	XtOwnSelection(w, selection, ctx->text.time, TextConvertSelection,
2406	TextLoseSelection, NULL((void*)0));
2407	}
2408	}
2409	else
2410	XawTextUnsetSelection((Widget)ctx);
2411	}
2412
2413	#ifndef OLDXAW1
2414	void
2415	_XawTextSetLineAndColumnNumber(TextWidget ctx, Boolint force)
2416	{
2417	int line_number, column_number;
2418
2419	if (ctx->text.old_insert != ctx->text.insertPos &&
2420	ctx->text.lt.base_line < 0) {
2421	ctx->text.lt.base_line = 0;
2422	(void)_BuildLineTable(ctx, ctx->text.lt.top, 0);
2423	}
2424
2425	line_number = ResolveLineNumber(ctx);
2426	column_number = ResolveColumnNumber(ctx);
2427
2428	if (force \|\| (ctx->text.column_number != column_number
2429	\|\| ctx->text.line_number != line_number)) {
2430	XawTextPositionInfo info;
2431
2432	ctx->text.line_number = info.line_number = line_number;
2433	ctx->text.column_number = info.column_number = column_number;
2434	info.insert_position = ctx->text.insertPos;
2435	info.last_position = ctx->text.lastPos;
2436	info.overwrite_mode = ctx->text.overwrite;
2437
2438	XtCallCallbacks((Widget)ctx, XtNpositionCallback"positionCallback", (XtPointer)&info);
2439	}
2440	}
2441
2442	static int
2443	ResolveColumnNumber(TextWidget ctx)
2444	{
2445	Widget src = ctx->text.source;
2446	short column_number = 0;
2447	XawTextPosition position;
2448	XawTextBlock block;
2449	unsigned long format = _XawTextFormat(ctx);
2450	TextSinkObject sink = (TextSinkObject)ctx->text.sink;
2451	short *char_tabs = sink->text_sink.char_tabs;
2452	int tab_count = sink->text_sink.tab_count;
2453	int tab_index = 0, tab_column = 0, tab_base = 0;
2454
2455	if (ctx->text.lt.base_line < 1)
2456	return (ctx->text.column_number);
2457
2458	position = SrcScanXawTextSourceScan(src, ctx->text.insertPos, XawstEOL, XawsdLeft, 1, False0);
2459	XawTextSourceRead(src, position, &block, ctx->text.insertPos - position);
2460
2461	for (; position < ctx->text.insertPos; position++) {
2462	if (position - block.firstPos >= block.length)
2463	XawTextSourceRead(src, position, &block, ctx->text.insertPos - position);
2464	if ((format == XawFmt8Bit && block.ptr[position - block.firstPos] == '\t') \|\|
2465	(format == XawFmtWide && ((wchar_t*)block.ptr)[position - block.firstPos] == _Xaw_atowc(XawTAB0x09))) {
2466	while (tab_base + tab_column <= column_number) {
2467	if (tab_count) {
2468	for (; tab_index < tab_count; ++tab_index)
2469	if (tab_base + char_tabs[tab_index] > column_number) {
2470	tab_column = char_tabs[tab_index];
2471	break;
2472	}
2473	if (tab_index >= tab_count) {
2474	tab_base += char_tabs[tab_count - 1];
2475	tab_column = tab_index = 0;
2476	}
2477	}
2478	else
2479	tab_column += DEFAULT_TAB_SIZE8;
2480	}
2481	column_number = tab_base + tab_column;
2482	}
2483	else
2484	++column_number;
2485	if (column_number >= 16384) {
2486	column_number = 16383;
2487	break;
2488	}
2489	}
2490
2491	return (column_number);
2492	}
2493	#endif /* OLDXAW */
2494
2495	void
2496	_XawTextSourceChanged(Widget w, XawTextPosition left, XawTextPosition right,
2497	XawTextBlock *block, int lines)
2498	{
2499	TextWidget ctx = (TextWidget)w;
2500	Widget src = ctx->text.source;
2501	XawTextPosition update_from, update_to, top;
2502	Boolean update_disabled;
2503	int delta, line, line_from;
2504
2505	if (left < ctx->text.old_insert) {
2506	XawTextPosition old_insert = ctx->text.old_insert;
2507
2508	if (right < ctx->text.old_insert)
2509	old_insert -= right - left;
2510	else
2511	old_insert = left;
2512
2513	ctx->text.insertPos = old_insert + block->length;
2514	}
2515	#ifndef OLDXAW1
2516	if (left <= ctx->text.lt.top) {
2517	if (left + block->length - (right - left) < ctx->text.lt.top) {
2518	ctx->text.source_changed = SRC_CHANGE_BEFORE2;
2519	ctx->text.lt.base_line += lines;
2520	}
2521	else
2522	ctx->text.source_changed = SRC_CHANGE_OVERLAP3;
2523	}
2524	else
2525	ctx->text.source_changed = SRC_CHANGE_AFTER1;
2526	#endif
2527
2528	update_from = left;
2529	update_to = left + block->length;
2530	update_to = SrcScanXawTextSourceScan(src, update_to, XawstEOL, XawsdRight, 1, False0);
2531	delta = block->length - (right - left);
2532	if (delta < 0)
2533	ctx->text.clear_to_eol = True1;
2534	if (update_to == update_from)
2535	++update_to;
2536	update_disabled = ctx->text.update_disabled;
2537	ctx->text.update_disabled = True1;
2538	ctx->text.lastPos = XawTextGetLastPosition(ctx)XawTextSourceScan((ctx)->text.source, 0, XawstAll, XawsdRight , 1, 1);
2539	top = ctx->text.lt.info[0].position;
2540
2541	XawTextUnsetSelection((Widget)ctx);
2542
2543	if (delta) {
2544	int i;
2545	XmuSegment *seg;
2546
2547	for (seg = ctx->text.update->segment; seg; seg = seg->next) {
2548	if (seg->x1 > (int)left)
2549	break;
2550	else if (seg->x2 > (int)left) {
2551	seg->x2 += delta;
2552	seg = seg->next;
2553	break;
2554	}
2555	}
2556	for (; seg; seg = seg->next) {
2557	seg->x1 += delta;
2558	seg->x2 += delta;
2559	}
2560	XmuOptimizeScanline(ctx->text.update);
2561
2562	for (i = 0; i <= ctx->text.lt.lines; i++)
2563	if (ctx->text.lt.info[i].position > left)
2564	break;
2565	for (; i <= ctx->text.lt.lines; i++)
2566	ctx->text.lt.info[i].position += delta;
2567	}
2568
2569	if (top != ctx->text.lt.info[0].position) {
2570	line_from = line = 0;
2571	ctx->text.lt.top = top = SrcScanXawTextSourceScan(src, ctx->text.lt.info[0].position,
2572	XawstEOL, XawsdLeft, 1, False0);
2573	update_from = top;
2574	}
2575	else {
2576	line_from = line = LineForPosition(ctx, update_from + delta);
2577	top = ctx->text.lt.info[line].position;
2578	}
2579
2580	if (line > 0 && ctx->text.wrap == XawtextWrapWord) {
2581	--line;
2582	top = ctx->text.lt.info[line].position;
2583	}
2584
2585	(void)_BuildLineTable(ctx, top, line);
2586
2587	if (ctx->text.wrap == XawtextWrapWord) {
2588	if (line_from != LineForPosition(ctx, update_from)
2589	\|\| line_from != LineForPosition(ctx, update_to)) {
2590	ctx->text.clear_to_eol = True1;
2591	update_from = SrcScanXawTextSourceScan(src, update_from,
2592	XawstWhiteSpace, XawsdLeft, 1, True1);
2593	if (update_to >= ctx->text.lastPos)
2594	/* this is not an error, it just tells _BuildLineTable to
2595	* clear to the bottom of the window. The value of update_to
2596	* should not be > ctx->text.lastPos.
2597	*/
2598	++update_to;
2599	}
2600	}
2601	else if (!ctx->text.clear_to_eol) {
2602	if (LineForPosition(ctx, update_from)
2603	!= LineForPosition(ctx, update_to))
2604	ctx->text.clear_to_eol = True1;
2605	}
2606
2607	_XawTextNeedsUpdating(ctx, update_from, update_to);
2608	ctx->text.update_disabled = update_disabled;
2609	}
2610
2611	/*
2612	* Function:
2613	* _XawTextReplace
2614	*
2615	* Parameters:
2616	* ctx - text widget
2617	* left - left offset
2618	* right - right offset
2619	* block - text block
2620	*
2621	* Description:
2622	* Replaces the text between left and right by the text in block.
2623	* Does all the required calculations of offsets, and rebuild the
2624	* the line table, from the insertion point (or previous line, if
2625	* wrap mode is 'word').
2626	*
2627	* Returns:
2628	* XawEditDone - success
2629	* any other value - error code
2630	*/
2631	int
2632	_XawTextReplace(TextWidget ctx, XawTextPosition left, XawTextPosition right,
2633	XawTextBlock *block)
2634	{
2635	Arg args[1];
2636	Widget src;
2637	XawTextEditType edit_mode;
2638
2639	if (left == right && block->length == 0)
2640	return (XawEditDone0);
2641
2642	src = ctx->text.source;
2643	XtSetArg(args[0], XtNeditType, &edit_mode)((void)( (args[0]).name = (((char*)&XtStrings[185])), (args [0]).value = (XtArgVal)(&edit_mode) ));
2644	XtGetValues(src, args, 1);
2645
2646	if (edit_mode == XawtextAppend) {
2647	if (block->length == 0)
2648	return (XawEditError1);
2649	ctx->text.insertPos = ctx->text.lastPos;
2650	}
2651
2652	#ifndef OLDXAW1
2653	return (SrcReplaceXawTextSourceReplace(src, left, right, block));
2654	#else
2655	if (SrcReplaceXawTextSourceReplace(src, left, right, block) == XawEditDone0) {
2656	_XawTextSourceChanged((Widget)ctx, left, right, block, 0);
2657
2658	return (XawEditDone0);
2659	}
2660
2661	return (XawEditError1);
2662	#endif
2663	}
2664
2665	/*
2666	* This routine will display text between two arbitrary source positions.
2667	* In the event that this span contains highlighted text for the selection,
2668	* only that portion will be displayed highlighted.
2669	*/
2670	static void
2671	OldDisplayText(Widget w, XawTextPosition left, XawTextPosition right)
2672	{
2673	static XmuSegment segment;
2674	static XmuScanline next;
2675	static XmuScanline scanline = {0, &segment, &next};
2676	static XmuArea area = {&scanline};
2677
2678	TextWidget ctx = (TextWidget)w;
2679	int x, y, line;
2680	XawTextPosition start, end, last, final;
2681	XmuScanline *scan;
2682	XmuSegment *seg;
2683	XmuArea clip = NULL((void)0);
2684	Boolint cleol = ctx->text.clear_to_eol;
2685	Boolint has_selection = ctx->text.s.right > ctx->text.s.left;
2686
2687	left = left < ctx->text.lt.top ? ctx->text.lt.top : left;
2688
2689	if (left > right \|\| !LineAndXYForPosition(ctx, left, &line, &x, &y))
2690	return;
2691
2692	last = XawTextGetLastPosition(ctx)XawTextSourceScan((ctx)->text.source, 0, XawstAll, XawsdRight , 1, 1);
2693	segment.x2 = (int)XtWidth(ctx)(((RectObj)ctx)->rectangle.width) - ctx->text.r_margin.right;
2694
2695	if (cleol)
2696	clip = XmuCreateArea()XmuNewArea(0, 0, 0, 0);
2697
2698	for (start = left; start < right && line < ctx->text.lt.lines; line++) {
2699	if ((end = ctx->text.lt.info[line + 1].position) > right)
2700	end = right;
2701
2702	final = end;
2703	if (end > last)
2704	end = last;
2705
2706	if (end > start) {
2707	if (!has_selection
2708	\|\| (start >= ctx->text.s.right \|\| end <= ctx->text.s.left))
2709	_XawTextSinkDisplayText(ctx->text.sink, x, y, start, end, False0);
2710	else if (start >= ctx->text.s.left && end <= ctx->text.s.right)
2711	_XawTextSinkDisplayText(ctx->text.sink, x, y, start, end, True1);
2712	else {
2713	OldDisplayText(w, start, ctx->text.s.left);
2714	OldDisplayText(w, Max(start, ctx->text.s.left)(((start) > (ctx->text.s.left)) ? (start) : (ctx->text .s.left)),
2715	Min(end, ctx->text.s.right)(((end) < (ctx->text.s.right)) ? (end) : (ctx->text. s.right)));
2716	OldDisplayText(w, ctx->text.s.right, end);
2717	}
2718	}
2719
2720	x = ctx->text.left_margin;
2721	if (cleol) {
2722	segment.x1 = ctx->text.lt.info[line].textWidth + x;
2723	if (XmuValidSegment(&segment)((&segment)->x1 < (&segment)->x2)) {
2724	scanline.y = y;
2725	next.y = ctx->text.lt.info[line + 1].y;
2726	XmuAreaOr(clip, &area)XmuAreaOrXor((clip), (&area), 1);
2727	}
2728	}
2729
2730	start = final;
2731	y = ctx->text.lt.info[line + 1].y;
2732	}
2733
2734	if (cleol) {
2735	for (scan = clip->scanline; scan && scan->next; scan = scan->next)
2736	for (seg = scan->segment; seg; seg = seg->next)
2737	SinkClearToBG_XawTextSinkClearToBackground(ctx->text.sink,
2738	seg->x1, scan->y,
2739	seg->x2 - seg->x1, scan->next->y - scan->y);
2740	XmuDestroyArea(clip)do { XmuDestroyScanlineList((clip)->scanline); XtFree((char *)(clip)); } while (0);
2741	}
2742	}
2743
2744	#ifndef OLDXAW1
2745	/ARGSUSED/
2746	static void
2747	DisplayText(Widget w, XawTextPosition left, XawTextPosition right)
2748	{
2749	static XmuSegment segment;
2750	static XmuScanline next;
2751	static XmuScanline scanline = {0, &segment, &next};
2752	static XmuArea area = {&scanline};
2753
2754	TextWidget ctx = (TextWidget)w;
2755	int y, line;
2756	XawTextPosition from, to, lastPos;
2757	Boolint cleol = ctx->text.clear_to_eol;
2758	Boolint has_selection = ctx->text.s.right > ctx->text.s.left;
2759	XawTextPaintList *paint_list;
2760
2761	left = left < ctx->text.lt.top ? ctx->text.lt.top : left;
2762
2763	if (left > right \|\| !IsPositionVisible(ctx, left)(left >= ctx->text.lt.info[0].position && left < ctx->text.lt.info[ctx->text.lt.lines].position))
2764	return;
2765
2766	line = LineForPosition(ctx, left);
2767	y = ctx->text.lt.info[line].y;
2768	segment.x2 = (int)XtWidth(ctx)(((RectObj)ctx)->rectangle.width) - ctx->text.r_margin.right;
2769	lastPos = XawTextGetLastPosition(ctx)XawTextSourceScan((ctx)->text.source, 0, XawstAll, XawsdRight , 1, 1);
2770
2771	paint_list = ((TextSinkObject)ctx->text.sink)->text_sink.paint;
2772
2773	for (from = left; from < right && line < ctx->text.lt.lines; line++) {
2774	if ((to = ctx->text.lt.info[line + 1].position) > right)
2775	to = right;
2776
2777	if (to > lastPos)
2778	to = lastPos;
2779
2780	if (from < to) {
2781	if (!has_selection
2782	\|\| (from >= ctx->text.s.right \|\| to <= ctx->text.s.left))
2783	XawTextSinkPreparePaint(ctx->text.sink, y, line, from, to, False0);
2784	else if (from >= ctx->text.s.left && to <= ctx->text.s.right)
2785	XawTextSinkPreparePaint(ctx->text.sink, y, line, from, to, True1);
2786	else {
2787	XawTextSinkPreparePaint(ctx->text.sink, y, line, from,
2788	ctx->text.s.left, False0);
2789	XawTextSinkPreparePaint(ctx->text.sink, y, line,
2790	XawMax(from, ctx->text.s.left)((from) > (ctx->text.s.left) ? (from) : (ctx->text.s .left)),
2791	XawMin(to, ctx->text.s.right)((to) < (ctx->text.s.right) ? (to) : (ctx->text.s.right )), True1);
2792	XawTextSinkPreparePaint(ctx->text.sink, y, line,
2793	ctx->text.s.right, to, False0);
2794	}
2795	}
2796
2797	if (cleol) {
2798	segment.x1 = ctx->text.lt.info[line].textWidth + ctx->text.left_margin;
2799	if (XmuValidSegment(&segment)((&segment)->x1 < (&segment)->x2)) {
2800	scanline.y = y;
2801	next.y = ctx->text.lt.info[line + 1].y;
2802	XmuAreaOr(paint_list->clip, &area)XmuAreaOrXor((paint_list->clip), (&area), 1);
2803	}
2804	}
2805	y = ctx->text.lt.info[line + 1].y;
2806	from = to;
2807	}
2808
2809	/* clear to the bottom of the window */
2810	if (cleol && line >= ctx->text.lt.lines) {
2811	segment.x1 = ctx->text.left_margin;
2812	if (XmuValidSegment(&segment)((&segment)->x1 < (&segment)->x2)) {
2813	scanline.y = y;
2814	next.y = (int)XtHeight(ctx)(((RectObj)ctx)->rectangle.height) - (int)ctx->text.margin.bottom;
2815	XmuAreaOr(paint_list->clip, &area)XmuAreaOrXor((paint_list->clip), (&area), 1);
2816	}
2817	}
2818	}
2819	#endif
2820
2821	/*
2822	* This routine implements multi-click selection in a hardwired manner.
2823	* It supports multi-click entity cycling (char, word, line, file) and mouse
2824	* motion adjustment of the selected entitie (i.e. select a word then, with
2825	* button still down, adjust wich word you really meant by moving the mouse).
2826	* [NOTE: This routine is to be replaced by a set of procedures that
2827	* will allows clients to implements a wide class of draw through and
2828	* multi-click selection user interfaces.]
2829	*/
2830	static void
2831	DoSelection(TextWidget ctx, XawTextPosition pos, Time time, Boolint motion)
2832	{
2833	XawTextPosition newLeft, newRight;
2834	XawTextSelectType newType, *sarray;
2835	Widget src = ctx->text.source;
2836
2837	if (motion)
2838	newType = ctx->text.s.type;
2839	else {
2840	if ((abs((long) time - (long) ctx->text.lasttime) < MULTI_CLICK_TIME500L)
2841	&& (pos >= ctx->text.s.left && pos <= ctx->text.s.right)) {
2842	sarray = ctx->text.sarray;
2843	for (; sarray != XawselectNull && sarray != ctx->text.s.type;
2844	sarray++)
2845	;
2846	if (*sarray == XawselectNull)
2847	newType = *(ctx->text.sarray);
2848	else {
2849	newType = *(sarray + 1);
2850	if (newType == XawselectNull)
2851	newType = *(ctx->text.sarray);
2852	}
2853	}
2854	else /* single-click event */
2855	newType = *(ctx->text.sarray);
2856
2857	ctx->text.lasttime = time;
2858	}
2859	switch (newType) {
2860	case XawselectPosition:
2861	newLeft = newRight = pos;
2862	break;
2863	case XawselectChar:
2864	newLeft = pos;
2865	newRight = SrcScanXawTextSourceScan(src, pos, XawstPositions, XawsdRight, 1, False0);
2866	break;
2867	case XawselectWord:
2868	case XawselectParagraph:
2869	case XawselectAlphaNumeric: {
2870	XawTextScanType stype;
2871
2872	if (newType == XawselectWord)
2873	stype = XawstWhiteSpace;
2874	else if (newType == XawselectParagraph)
2875	stype = XawstParagraph;
2876	else
2877	stype = XawstAlphaNumeric;
2878
2879	/*
2880	* Somewhat complicated, but basically I treat the space between
2881	* two objects as another object. The object that I am currently
2882	* in then becomes the end of the selection.
2883	*
2884	* Chris Peterson - 4/19/90.
2885	*/
2886	newRight = SrcScanXawTextSourceScan(ctx->text.source, pos, stype,
2887	XawsdRight, 1, False0);
2888	newRight = SrcScanXawTextSourceScan(ctx->text.source, newRight, stype,
2889	XawsdLeft, 1, False0);
2890
2891	if (pos != newRight)
2892	newLeft = SrcScanXawTextSourceScan(ctx->text.source, pos, stype,
2893	XawsdLeft, 1, False0);
2894	else
2895	newLeft = pos;
2896
2897	newLeft =SrcScanXawTextSourceScan(ctx->text.source, newLeft, stype,
2898	XawsdRight, 1, False0);
2899
2900	if (newLeft > newRight) {
2901	XawTextPosition temp = newLeft;
2902	newLeft = newRight;
2903	newRight = temp;
2904	}
2905	} break;
2906	case XawselectLine:
2907	newLeft = SrcScanXawTextSourceScan(src, pos, XawstEOL, XawsdLeft, 1, False0);
2908	newRight = SrcScanXawTextSourceScan(src, pos, XawstEOL, XawsdRight, 1, False0);
2909	break;
2910	case XawselectAll:
2911	newLeft = SrcScanXawTextSourceScan(src, pos, XawstAll, XawsdLeft, 1, False0);
2912	newRight = SrcScanXawTextSourceScan(src, pos, XawstAll, XawsdRight, 1, False0);
2913	break;
2914	default:
2915	XtAppWarning(XtWidgetToApplicationContext((Widget) ctx),
2916	"Text Widget: empty selection array.");
2917	return;
2918	}
2919
2920	if (newLeft != ctx->text.s.left \|\| newRight != ctx->text.s.right
2921	\|\| newType != ctx->text.s.type) {
2922	ModifySelection(ctx, newLeft, newRight);
2923	if (pos - ctx->text.s.left < ctx->text.s.right - pos)
2924	ctx->text.insertPos = newLeft;
2925	else
2926	ctx->text.insertPos = newRight;
2927	ctx->text.s.type = newType;
2928	}
2929	if (!motion) { /* setup so we can freely mix select extend calls*/
2930	ctx->text.origSel.type = ctx->text.s.type;
2931	ctx->text.origSel.left = ctx->text.s.left;
2932	ctx->text.origSel.right = ctx->text.s.right;
2933
2934	if (pos >= ctx->text.s.left + (ctx->text.s.right - ctx->text.s.left) / 2)
2935	ctx->text.extendDir = XawsdRight;
2936	else
2937	ctx->text.extendDir = XawsdLeft;
2938	}
2939	}
2940
2941	/*
2942	* This routine implements extension of the currently selected text in
2943	* the "current" mode (i.e. char word, line, etc.). It worries about
2944	* extending from either end of the selection and handles the case when you
2945	* cross through the "center" of the current selection (e.g. switch which
2946	* end you are extending!).
2947	*/
2948	static void
2949	ExtendSelection(TextWidget ctx, XawTextPosition pos, Boolint motion)
2950	{
2951	XawTextScanDirection dir;
2952
2953	if (!motion) { /* setup for extending selection */
2954	if (ctx->text.s.left == ctx->text.s.right) /* no current selection. */
2955	ctx->text.s.left = ctx->text.s.right = ctx->text.insertPos;
2956	else {
2957	ctx->text.origSel.left = ctx->text.s.left;
2958	ctx->text.origSel.right = ctx->text.s.right;
2959	}
2960
2961	ctx->text.origSel.type = ctx->text.s.type;
2962
2963	if (pos >= ctx->text.s.left + (ctx->text.s.right - ctx->text.s.left) / 2)
2964	ctx->text.extendDir = XawsdRight;
2965	else
2966	ctx->text.extendDir = XawsdLeft;
2967	}
2968	else /* check for change in extend direction */
2969	if ((ctx->text.extendDir == XawsdRight &&
2970	pos <= ctx->text.origSel.left) \|\|
2971	(ctx->text.extendDir == XawsdLeft &&
2972	pos >= ctx->text.origSel.right)) {
2973	ctx->text.extendDir = (ctx->text.extendDir == XawsdRight) ?
2974	XawsdLeft : XawsdRight;
2975	ModifySelection(ctx, ctx->text.origSel.left, ctx->text.origSel.right);
2976	}
2977
2978	dir = ctx->text.extendDir;
2979	switch (ctx->text.s.type) {
2980	case XawselectWord:
2981	case XawselectParagraph:
2982	case XawselectAlphaNumeric: {
2983	XawTextPosition left_pos, right_pos;
2984	XawTextScanType stype;
2985
2986	if (ctx->text.s.type == XawselectWord)
2987	stype = XawstWhiteSpace;
2988	else if (ctx->text.s.type == XawselectParagraph)
2989	stype = XawstParagraph;
2990	else
2991	stype = XawstAlphaNumeric;
2992
2993	/*
2994	* Somewhat complicated, but basically I treat the space between
2995	* two objects as another object. The object that I am currently
2996	* in then becomes the end of the selection.
2997	*
2998	* Chris Peterson - 4/19/90.
2999	*/
3000	right_pos = SrcScanXawTextSourceScan(ctx->text.source, pos, stype,
3001	XawsdRight, 1, False0);
3002	right_pos =SrcScanXawTextSourceScan(ctx->text.source, right_pos, stype,
3003	XawsdLeft, 1, False0);
3004
3005	if (pos != right_pos)
3006	left_pos = SrcScanXawTextSourceScan(ctx->text.source, pos, stype,
3007	XawsdLeft, 1, False0);
3008	else
3009	left_pos = pos;
3010
3011	left_pos =SrcScanXawTextSourceScan(ctx->text.source, left_pos, stype,
3012	XawsdRight, 1, False0);
3013
3014	if (dir == XawsdLeft)
3015	pos = Min(left_pos, right_pos)(((left_pos) < (right_pos)) ? (left_pos) : (right_pos));
3016	else /* dir == XawsdRight */
3017	pos = Max(left_pos, right_pos)(((left_pos) > (right_pos)) ? (left_pos) : (right_pos));
3018	} break;
3019	case XawselectLine:
3020	pos = SrcScanXawTextSourceScan(ctx->text.source, pos, XawstEOL,
3021	dir, 1, dir == XawsdRight);
3022	break;
3023	case XawselectAll:
3024	pos = ctx->text.insertPos;
3025	/FALLTHROUGH/
3026	case XawselectPosition:
3027	default:
3028	break;
3029	}
3030
3031	if (dir == XawsdRight)
3032	ModifySelection(ctx, ctx->text.s.left, pos);
3033	else
3034	ModifySelection(ctx, pos, ctx->text.s.right);
3035
3036	ctx->text.insertPos = pos;
3037	}
3038
3039	/*
3040	* Function:
3041	* _XawTextClearAndCenterDisplay
3042	*
3043	* Parameters:
3044	* ctx - text widget
3045	*
3046	* Description:
3047	* Redraws the display with the cursor in insert point
3048	* centered vertically.
3049	*/
3050	void
3051	_XawTextClearAndCenterDisplay(TextWidget ctx)
3052	{
3053	int left_margin = ctx->text.left_margin;
3054	Boolint visible = IsPositionVisible(ctx, ctx->text.insertPos)(ctx->text.insertPos >= ctx->text.lt.info[0].position && ctx->text.insertPos < ctx->text.lt.info[ ctx->text.lt.lines].position);
3055
3056	_XawTextShowPosition(ctx);
3057
3058	if (XtIsRealized((Widget)ctx)(XtWindowOfObject((Widget)ctx) != 0L) && visible &&
3059	left_margin == ctx->text.left_margin) {
3060	int insert_line = LineForPosition(ctx, ctx->text.insertPos);
3061	int scroll_by = insert_line - (ctx->text.lt.lines >> 1);
3062	Boolean clear_to_eol = ctx->text.clear_to_eol;
3063
3064	XawTextScroll(ctx, scroll_by, 0);
3065	SinkClearToBG_XawTextSinkClearToBackground(ctx->text.sink, 0, 0, XtWidth(ctx)(((RectObj)ctx)->rectangle.width), XtHeight(ctx)(((RectObj)ctx)->rectangle.height));
3066	ClearWindow(ctx)_XawTextNeedsUpdating((ctx), (ctx)->text.lt.top, (ctx)-> text.lt.info[ctx->text.lt.lines].position);
3067	clear_to_eol = ctx->text.clear_to_eol;
3068	ctx->text.clear_to_eol = False0;
3069	FlushUpdate(ctx);
3070	ctx->text.clear_to_eol = clear_to_eol;
3071	}
3072	}
3073
3074	/*
3075	* Internal redisplay entire window
3076	* Legal to call only if widget is realized
3077	*/
3078	static void
3079	DisplayTextWindow(Widget w)
3080	{
3081	TextWidget ctx = (TextWidget)w;
3082
3083	_XawTextBuildLineTable(ctx, ctx->text.lt.top, False0);
3084	ClearWindow(ctx)_XawTextNeedsUpdating((ctx), (ctx)->text.lt.top, (ctx)-> text.lt.info[ctx->text.lt.lines].position);
3085	}
3086
3087	static void
3088	TextSinkResize(Widget w)
3089	{
3090	if (w && XtClass(w)((w)->core.widget_class)->core_class.resize)
3091	XtClass(w)((w)->core.widget_class)->core_class.resize(w);
3092	}
3093
3094	/* ARGSUSED */
3095	void
3096	_XawTextCheckResize(TextWidget ctx)
3097	{
3098	return;
3099	}
3100
3101	/*
3102	* Converts (params, num_params) to a list of atoms & caches the
3103	* list in the TextWidget instance.
3104	*/
3105	Atom *
3106	_XawTextSelectionList(TextWidget ctx, String *list, Cardinal nelems)
3107	{
3108	Atom *sel = ctx->text.s.selections;
3109	Display *dpy = XtDisplay((Widget)ctx)((((Widget)ctx)->core.screen)->display);
3110	int n;
3111
3112	if (nelems > (Cardinal)ctx->text.s.array_size) {
3113	sel = (Atom )XtRealloc((char )sel, sizeof(Atom) * nelems);
3114	ctx->text.s.array_size = nelems;
3115	ctx->text.s.selections = sel;
3116	}
3117	for (n = nelems; --n >= 0; sel++, list++)
3118	sel = XInternAtom(dpy, list, False0);
3119	ctx->text.s.atom_count = nelems;
3120
3121	return (ctx->text.s.selections);
3122	}
3123
3124	/*
3125	* Function:
3126	* SetSelection
3127	*
3128	* Parameters:
3129	* ctx - text widget
3130	* defaultSel - default selection
3131	* l - left and right ends of the selection
3132	* r - ""
3133	* list - the selection list (as strings).
3134	* nelems - ""
3135	*
3136	* Description:
3137	* Sets the current selection.
3138	*
3139	* Note:
3140	* if (ctx->text.s.left >= ctx->text.s.right) then the selection is unset
3141	*/
3142	void
3143	_XawTextSetSelection(TextWidget ctx, XawTextPosition l, XawTextPosition r,
3144	String *list, Cardinal nelems)
3145	{
3146	if (nelems == 1 && !strcmp (list[0], "none"))
3147	return;
3148	if (nelems == 0) {
3149	static String defaultSel = "PRIMARY";
3150	list = &defaultSel;
3151	nelems = 1;
3152	}
3153	_SetSelection(ctx, l, r, _XawTextSelectionList(ctx, list, nelems), nelems);
3154	}
3155
3156	/*
3157	* Function:
3158	* ModifySelection
3159	*
3160	* Parameters:
3161	* ctx - text widget
3162	* left - left and right ends of the selection
3163	* right - ""
3164	*
3165	* Description:
3166	* Modifies the current selection.
3167	*
3168	* Note:
3169	* if (ctx->text.s.left >= ctx->text.s.right) then the selection is unset
3170	*/
3171	static void
3172	ModifySelection(TextWidget ctx, XawTextPosition left, XawTextPosition right)
3173	{
3174	if (left == right)
3175	ctx->text.insertPos = left;
3176	_SetSelection(ctx, left, right, NULL((void*)0), 0);
3177	}
3178
3179	/*
3180	* This routine is used to perform various selection functions. The goal is
3181	* to be able to specify all the more popular forms of draw-through and
3182	* multi-click selection user interfaces from the outside.
3183	*/
3184	void
3185	_XawTextAlterSelection(TextWidget ctx, XawTextSelectionMode mode,
3186	XawTextSelectionAction action, String *params,
3187	Cardinal *num_params)
3188	{
3189	XawTextPosition position;
3190	Boolean flag;
3191
3192	/*
3193	* This flag is used by TextPop.c:DoReplace() to determine if the selection
3194	* is okay to use, or if it has been modified.
3195	*/
3196	if (ctx->text.search != NULL((void*)0))
3197	ctx->text.search->selection_changed = True1;
3198
3199	position = PositionForXY(ctx, (int) ctx->text.ev_x, (int) ctx->text.ev_y);
3200
3201	flag = (action != XawactionStart);
3202	if (mode == XawsmTextSelect)
3203	DoSelection(ctx, position, ctx->text.time, flag);
3204	else /* mode == XawsmTextExtend */
3205	ExtendSelection (ctx, position, flag);
3206
3207	if (action == XawactionEnd)
3208	_XawTextSetSelection(ctx, ctx->text.s.left, ctx->text.s.right,
3209	params, *num_params);
3210	}
3211
3212	/*
3213	* Function:
3214	* UpdateTextInRectangle
3215	*
3216	* Parameters:
3217	* ctx - the text widget
3218	* rect - rectangle
3219	*
3220	* Description:
3221	* Updates the text in the given rectangle
3222	*/
3223	static void
3224	UpdateTextInRectangle(TextWidget ctx, XRectangle *rect)
3225	{
3226	XawTextLineTable *lt;
3227	int line, y1, y2, x2;
3228
3229	y1 = rect->y;
3230	y2 = y1 + rect->height;
3231	x2 = rect->x + rect->width;
3232
3233	for (line = 0, lt = &ctx->text.lt; line < lt->lines; line++)
3234	if (lt->info[line + 1].y > y1)
3235	break;
3236	for (; line <= lt->lines; line++) {
3237	if (lt->info[line].y > y2)
3238	break;
3239	UpdateTextInLine(ctx, line, rect->x, x2);
3240	}
3241	}
3242
3243	/*
3244	* This routine processes all "expose region" XEvents. In general, its job
3245	* is to the best job at minimal re-paint of the text, displayed in the
3246	* window, that it can.
3247	*/
3248	/* ARGSUSED */
3249	static void
3250	XawTextExpose(Widget w, XEvent *event, Region region)
3251	{
3252	TextWidget ctx = (TextWidget)w;
3253	Boolean clear_to_eol;
3254	XRectangle expose;
3255
3256	if (event->type == Expose12) {
3257	expose.x = event->xexpose.x;
3258	expose.y = event->xexpose.y;
3259	expose.width = event->xexpose.width;
3260	expose.height = event->xexpose.height;
3261	}
3262	else if (event->type == GraphicsExpose13) {
3263	expose.x = event->xgraphicsexpose.x;
3264	expose.y = event->xgraphicsexpose.y;
3265	expose.width = event->xgraphicsexpose.width;
3266	expose.height = event->xgraphicsexpose.height;
3267	}
3268	else
3269	return;
3270
3271	_XawTextPrepareToUpdate(ctx);
3272
3273	if (Superclass(&simpleClassRec)->core_class.expose)
3274	(*Superclass(&simpleClassRec)->core_class.expose)(w, event, region);
3275
3276	clear_to_eol = ctx->text.clear_to_eol;
3277	ctx->text.clear_to_eol = False0;
3278
3279	UpdateTextInRectangle(ctx, &expose);
3280	XawTextSinkGetCursorBounds(ctx->text.sink, &expose);
3281	UpdateTextInRectangle(ctx, &expose);
3282	SinkClearToBG_XawTextSinkClearToBackground(ctx->text.sink, expose.x, expose.y,
3283	expose.width, expose.height);
3284	_XawTextExecuteUpdate(ctx);
3285	ctx->text.clear_to_eol = clear_to_eol;
3286	}
3287
3288	/*
3289	* This routine does all setup required to syncronize batched screen updates
3290	*/
3291	void
3292	_XawTextPrepareToUpdate(TextWidget ctx)
3293	{
3294	if (ctx->text.old_insert < 0) {
3295	InsertCursor((Widget)ctx, XawisOff);
3296	ctx->text.showposition = False0;
3297	ctx->text.old_insert = ctx->text.insertPos;
3298	ctx->text.clear_to_eol = False0;
3299	#ifndef OLDXAW1
3300	ctx->text.source_changed = SRC_CHANGE_NONE0;
3301	#endif
3302	}
3303	}
3304
3305	/*
3306	* This is a private utility routine used by _XawTextExecuteUpdate. It
3307	* processes all the outstanding update requests and merges update
3308	* ranges where possible.
3309	*/
3310	static void
3311	FlushUpdate(TextWidget ctx)
3312	{
3313	XmuSegment *seg;
3314	void (*display_text)(Widget, XawTextPosition, XawTextPosition);
3315
3316	if (XtIsRealized((Widget)ctx)(XtWindowOfObject((Widget)ctx) != 0L)) {
3317	ctx->text.s.right = XawMin(ctx->text.s.right, ctx->text.lastPos)((ctx->text.s.right) < (ctx->text.lastPos) ? (ctx-> text.s.right) : (ctx->text.lastPos));
3318	ctx->text.s.left = XawMin(ctx->text.s.left, ctx->text.s.right)((ctx->text.s.left) < (ctx->text.s.right) ? (ctx-> text.s.left) : (ctx->text.s.right));
3319
3320	#ifndef OLDXAW1
3321	if (XawTextSinkBeginPaint(ctx->text.sink) == False0)
3322	#endif
3323	display_text = OldDisplayText;
3324	#ifndef OLDXAW1
3325	else
3326	display_text = DisplayText;
3327	#endif
3328	for (seg = ctx->text.update->segment; seg; seg = seg->next)
3329	(*display_text)((Widget)ctx,
3330	(XawTextPosition)seg->x1,
3331	(XawTextPosition)seg->x2);
3332	#ifndef OLDXAW1
3333	if (display_text != OldDisplayText) {
3334	XawTextSinkDoPaint(ctx->text.sink);
3335	XawTextSinkEndPaint(ctx->text.sink);
3336	}
3337	#endif
3338	}
3339	(void)XmuScanlineXor(ctx->text.update, ctx->text.update);
3340	}
3341
3342	static int
3343	CountLines(TextWidget ctx, XawTextPosition left, XawTextPosition right)
3344	{
3345	if (ctx->text.wrap == XawtextWrapNever \|\| left >= right)
3346	return (1);
3347	else {
3348	XawTextPosition tmp;
3349	int dim, lines = 0, wwidth = GetMaxTextWidth(ctx);
3350
3351	while (left < right) {
3352	tmp = left;
3353	XawTextSinkFindPosition(ctx->text.sink, left,
3354	ctx->text.left_margin,
3355	wwidth, ctx->text.wrap == XawtextWrapWord,
3356	&left, &dim, &dim);
3357	++lines;
3358	if (tmp == left)
3359	++left;
3360	}
3361
3362	return (lines);
3363	}
3364	/NOTREACHED/
3365	}
3366
3367	static int
3368	GetMaxTextWidth(TextWidget ctx)
3369	{
3370	XRectangle cursor;
3371	int width;
3372
3373	XawTextSinkGetCursorBounds(ctx->text.sink, &cursor);
3374	width = (int)XtWidth(ctx)(((RectObj)ctx)->rectangle.width) - RHMargins(ctx)((ctx)->text.r_margin.left + (ctx)->text.r_margin.right ) - cursor.width;
3375
3376	return (XawMax(0, width)((0) > (width) ? (0) : (width)));
3377	}
3378
3379	/*
3380	* Function:
3381	* _XawTextShowPosition
3382	*
3383	* Parameters:
3384	* ctx - the text widget to show the position
3385	*
3386	* Description:
3387	* Makes sure the text cursor visible, scrolling the text window
3388	* if required.
3389	*/
3390	void
3391	_XawTextShowPosition(TextWidget ctx)
3392	{
3393	/*
3394	* Variable scroll is used to avoid scanning large files to calculate
3395	* line offsets
3396	*/
3397	int hpixels, vlines;
3398	XawTextPosition first, last, top, tmp;
3399	Boolint visible, scroll;
3400
3401	if (!XtIsRealized((Widget)ctx)(XtWindowOfObject((Widget)ctx) != 0L))
3402	return;
3403
3404	/*
3405	* Checks if a horizontal scroll is required
3406	*/
3407	if (ctx->text.wrap == XawtextWrapNever) {
3408	int x, vwidth, distance, dim;
3409	XRectangle rect;
3410
3411	vwidth = (int)XtWidth(ctx)(((RectObj)ctx)->rectangle.width) - RHMargins(ctx)((ctx)->text.r_margin.left + (ctx)->text.r_margin.right );
3412	last = SrcScanXawTextSourceScan(ctx->text.source, ctx->text.insertPos,
3413	XawstEOL, XawsdLeft, 1, False0);
3414	XawTextSinkFindDistance(ctx->text.sink, last,
3415	ctx->text.left_margin,
3416	ctx->text.insertPos,
3417	&distance, &first, &dim);
3418	XawTextSinkGetCursorBounds(ctx->text.sink, &rect);
3419	x = ctx->text.left_margin - ctx->text.r_margin.left;
3420
3421	if (x + distance + rect.width > vwidth)
3422	hpixels = x + distance + rect.width - vwidth + (vwidth >> 2);
3423	else if (x + distance < 0)
3424	hpixels = x + distance - (vwidth >> 2);
3425	else
3426	hpixels = 0;
3427	}
3428	else
3429	hpixels = 0;
3430
3431	visible = IsPositionVisible(ctx, ctx->text.insertPos)(ctx->text.insertPos >= ctx->text.lt.info[0].position && ctx->text.insertPos < ctx->text.lt.info[ ctx->text.lt.lines].position);
3432
3433	/*
3434	* If the cursor is already visible
3435	*/
3436	if (!hpixels && visible)
3437	return;
3438
3439	scroll = ctx->core.background_pixmap == XtUnspecifiedPixmap((Pixmap)2) && !hpixels;
3440	vlines = 0;
3441	first = ctx->text.lt.top;
3442
3443	/*
3444	* Needs to scroll the text window
3445	*/
3446	if (visible)
3447	top = ctx->text.lt.top;
3448	else {
3449	top = SrcScanXawTextSourceScan(ctx->text.source, ctx->text.insertPos,
3450	XawstEOL, XawsdLeft, 1, False0);
3451
3452	/*
3453	* Finds the nearest left position from ctx->text.insertPos
3454	*/
3455	if (ctx->text.wrap != XawtextWrapNever) {
3456	int dim, vwidth = GetMaxTextWidth(ctx);
3457
3458	last = top;
3459	/CONSTCOND/
3460	while (1) {
3461	tmp = last;
3462	XawTextSinkFindPosition(ctx->text.sink, last,
3463	ctx->text.left_margin, vwidth,
3464	ctx->text.wrap == XawtextWrapWord,
3465	&last, &dim, &dim);
3466	if (last == tmp)
3467	++last;
3468	if (last <= ctx->text.insertPos)
3469	top = last;
3470	else
3471	break;
3472	}
3473	}
3474	}
3475
3476	if (scroll) {
3477	if (ctx->text.insertPos < first) { /* Scroll Down */
3478	while (first > top) {
3479	last = first;
3480	first = SrcScanXawTextSourceScan(ctx->text.source, first,
3481	XawstEOL, XawsdLeft, 2, False0);
3482	vlines -= CountLines(ctx, first, last);
3483	if (-vlines >= ctx->text.lt.lines) {
3484	scroll = False0;
3485	break;
3486	}
3487	}
3488	}
3489	else if (!visible) { /* Scroll Up */
3490	while (first < top) {
3491	last = first;
3492	first = SrcScanXawTextSourceScan(ctx->text.source, first,
3493	XawstEOL, XawsdRight, 1, True1);
3494	vlines += CountLines(ctx, last, first);
3495	if (vlines > ctx->text.lt.lines) {
3496	scroll = False0;
3497	break;
3498	}
3499	}
3500	}
3501	else
3502	scroll = False0;
3503	}
3504
3505	/*
3506	* If a portion of the text that will be scrolled is visible
3507	*/
3508	if (scroll)
3509	XawTextScroll(ctx, vlines ? vlines - (ctx->text.lt.lines >> 1) : 0, 0);
3510	/*
3511	* Else redraw the entire text window
3512	*/
3513	else {
3514	ctx->text.left_margin -= hpixels;
3515	if (ctx->text.left_margin > ctx->text.r_margin.left)
3516	ctx->text.left_margin = ctx->text.margin.left =
3517	ctx->text.r_margin.left;
3518
3519	if (!visible) {
3520	vlines = ctx->text.lt.lines >> 1;
3521	if (vlines)
3522	top = SrcScanXawTextSourceScan(ctx->text.source, ctx->text.insertPos,
3523	XawstEOL, XawsdLeft, vlines + 1, False0);
3524
3525	if (ctx->text.wrap != XawtextWrapNever) {
3526	int dim;
3527	int n_lines = CountLines(ctx, top, ctx->text.insertPos);
3528	int vwidth = GetMaxTextWidth(ctx);
3529
3530	while (n_lines-- > vlines) {
3531	tmp = top;
3532	XawTextSinkFindPosition(ctx->text.sink, top,
3533	ctx->text.left_margin,
3534	vwidth,
3535	ctx->text.wrap == XawtextWrapWord,
3536	&top, &dim, &dim);
3537	if (tmp == top)
3538	++top;
3539	}
3540	}
3541	_XawTextBuildLineTable(ctx, top, True1);
3542	}
3543	else
3544	ClearWindow(ctx)_XawTextNeedsUpdating((ctx), (ctx)->text.lt.top, (ctx)-> text.lt.info[ctx->text.lt.lines].position);
3545	}
3546	ctx->text.clear_to_eol = True1;
3547	}
3548
3549	#ifndef OLDXAW1
3550	static int
3551	ResolveLineNumber(TextWidget ctx)
3552	{
3553	int line_number = ctx->text.lt.base_line;
3554	XawTextPosition position = ctx->text.lt.top;
3555
3556	if (ctx->text.lt.base_line < 1)
3557	return (ctx->text.line_number);
3558
3559	if (ctx->text.wrap == XawtextWrapNever
3560	&& IsPositionVisible(ctx, ctx->text.insertPos)(ctx->text.insertPos >= ctx->text.lt.info[0].position && ctx->text.insertPos < ctx->text.lt.info[ ctx->text.lt.lines].position))
3561	line_number += LineForPosition(ctx, ctx->text.insertPos);
3562	else if (position < ctx->text.insertPos) {
3563	while (position < ctx->text.insertPos) {
3564	position = SrcScanXawTextSourceScan(ctx->text.source, position,
3565	XawstEOL, XawsdRight, 1, True1);
3566	if (position <= ctx->text.insertPos) {
3567	++line_number;
3568	if (position == ctx->text.lastPos) {
3569	line_number -= !_XawTextSourceNewLineAtEOF(ctx->text.source);
3570	break;
3571	}
3572	}
3573	}
3574	}
3575	else if (position > ctx->text.insertPos) {
3576	while (position > ctx->text.insertPos) {
3577	position = SrcScanXawTextSourceScan(ctx->text.source, position,
3578	XawstEOL, XawsdLeft, 1, False0);
3579	if (--position >= ctx->text.insertPos)
3580	--line_number;
3581	}
3582	}
3583
3584	return (line_number);
3585	}
3586	#endif
3587
3588	/*
3589	* This routine causes all batched screen updates to be performed
3590	*/
3591	void
3592	_XawTextExecuteUpdate(TextWidget ctx)
3593	{
3594	if (ctx->text.update_disabled \|\| ctx->text.old_insert < 0)
3595	return;
3596
3597	if(ctx->text.old_insert != ctx->text.insertPos \|\| ctx->text.showposition)
3598	_XawTextShowPosition(ctx);
3599
3600	FlushUpdate(ctx);
3601	InsertCursor((Widget)ctx, XawisOn);
3602	ctx->text.old_insert = -1;
3603	#ifndef OLDXAW1
3604	_XawTextSetLineAndColumnNumber(ctx, False0);
3605	#endif
3606	}
3607
3608	static void
3609	XawTextDestroy(Widget w)
3610	{
3611	TextWidget ctx = (TextWidget)w;
3612
3613	DestroyHScrollBar(ctx);
3614	DestroyVScrollBar(ctx);
3615
3616	XtFree((char *)ctx->text.s.selections);
3617	XtFree((char *)ctx->text.lt.info);
3618	XtFree((char *)ctx->text.search);
3619	XmuDestroyScanline(ctx->text.update)do { XmuDestroySegmentList((ctx->text.update)->segment) ; XtFree((char*)(ctx->text.update)); } while (0);
3620	XtReleaseGC((Widget)ctx, ctx->text.gc);
3621	}
3622
3623	/*
3624	* by the time we are managed (and get this far) we had better
3625	* have both a source and a sink
3626	*/
3627	static void
3628	XawTextResize(Widget w)
3629	{
3630	TextWidget ctx = (TextWidget)w;
3631
3632	PositionVScrollBar(ctx);
3633	PositionHScrollBar(ctx);
3634	TextSinkResize(ctx->text.sink);
3635
3636	ctx->text.showposition = True1;
3637	_XawTextBuildLineTable(ctx, ctx->text.lt.top, True1);
3638	}
3639
3640	/*
3641	* This routine allow the application program to Set attributes.
3642	*/
3643	/ARGSUSED/
3644	static Boolean
3645	XawTextSetValues(Widget current, Widget request, Widget cnew,
3646	ArgList args, Cardinal *num_args)
3647	{
3648	TextWidget oldtw = (TextWidget)current;
3649	TextWidget newtw = (TextWidget)cnew;
3650	Boolean redisplay = False0;
3651	Boolean display_caret = newtw->text.display_caret;
3652	#ifndef OLDXAW1
3653	Boolean show_lc = False0;
3654	#endif
3655
3656	newtw->text.display_caret = oldtw->text.display_caret;
3657	_XawTextPrepareToUpdate(newtw);
3658	newtw->text.display_caret = display_caret;
3659
3660	if (oldtw->text.r_margin.left != newtw->text.r_margin.left) {
3661	newtw->text.left_margin = newtw->text.margin.left =
3662	newtw->text.r_margin.left;
3663	if (newtw->text.vbar != NULL((void*)0)) {
3664	newtw->text.left_margin += XtWidth(newtw->text.vbar)(((RectObj)newtw->text.vbar)->rectangle.width) +
3665	XtBorderWidth(newtw->text.vbar)(((RectObj)newtw->text.vbar)->rectangle.border_width);
3666	}
3667	redisplay = True1;
3668	}
3669
3670	if (oldtw->text.scroll_vert != newtw->text.scroll_vert) {
3671	if (newtw->text.scroll_vert == XawtextScrollAlways)
3672	CreateVScrollBar(newtw);
3673	else
3674	DestroyVScrollBar(newtw);
3675
3676	redisplay = True1;
3677	}
3678
3679	if (oldtw->text.r_margin.bottom != newtw->text.r_margin.bottom) {
3680	newtw->text.margin.bottom = newtw->text.r_margin.bottom;
3681	if (newtw->text.hbar != NULL((void*)0))
3682	newtw->text.margin.bottom += newtw->text.hbar->core.height +
3683	newtw->text.hbar->core.border_width;
3684	redisplay = True1;
3685	}
3686
3687	if (oldtw->text.scroll_horiz != newtw->text.scroll_horiz) {
3688	if (newtw->text.scroll_horiz == XawtextScrollAlways)
3689	CreateHScrollBar(newtw);
3690	else
3691	DestroyHScrollBar(newtw);
3692
3693	redisplay = True1;
3694	}
3695
3696	if (oldtw->text.source != newtw->text.source) {
3697	#ifndef OLDXAW1
3698	show_lc = True1;
3699	_XawSourceRemoveText(oldtw->text.source, cnew,
3700	oldtw->text.source &&
3701	XtParent(oldtw->text.source)((oldtw->text.source)->core.parent) == cnew);
3702	_XawSourceAddText(newtw->text.source, cnew);
3703	#endif
3704	_XawTextSetSource((Widget)newtw, newtw->text.source, newtw->text.lt.top,
3705	newtw->text.insertPos);
3706	}
3707
3708	newtw->text.redisplay_needed = False0;
3709	XtSetValues((Widget)newtw->text.source, args, *num_args);
3710	XtSetValues((Widget)newtw->text.sink, args, *num_args);
3711
3712	if (oldtw->text.wrap != newtw->text.wrap
3713	\|\| oldtw->text.lt.top != newtw->text.lt.top
3714	\|\| oldtw->text.insertPos != newtw->text.insertPos
3715	\|\| oldtw->text.r_margin.right != newtw->text.r_margin.right
3716	\|\| oldtw->text.r_margin.top != newtw->text.r_margin.top
3717	\|\| oldtw->text.sink != newtw->text.sink
3718	\|\| newtw->text.redisplay_needed) {
3719	if (oldtw->text.wrap != newtw->text.wrap) {
3720	newtw->text.left_margin = newtw->text.margin.left =
3721	newtw->text.r_margin.left;
3722	if (oldtw->text.lt.top == newtw->text.lt.top)
3723	newtw->text.lt.top = SrcScanXawTextSourceScan(newtw->text.source, 0, XawstEOL,
3724	XawsdLeft, 1, False0);
3725	}
3726	newtw->text.showposition = True1;
3727	#ifndef OLDXAW1
3728	show_lc = True1;
3729	newtw->text.source_changed = SRC_CHANGE_OVERLAP3;
3730	#endif
3731	_XawTextBuildLineTable(newtw, newtw->text.lt.top, True1);
3732	redisplay = True1;
3733	}
3734
3735	#ifndef OLDXAW1
3736	if (newtw->text.left_column < 0)
3737	newtw->text.left_column = 0;
3738	if (newtw->text.right_column < 0)
3739	newtw->text.right_column = 0;
3740	#endif
3741
3742	_XawTextExecuteUpdate(newtw);
3743
3744	#ifndef OLDXAW1
3745	if (show_lc)
3746	_XawTextSetLineAndColumnNumber(newtw, True1);
3747	#endif
3748
3749	if (redisplay)
3750	_XawTextSetScrollBars(newtw);
3751
3752	return (redisplay);
3753	}
3754
3755	/* invoked by the Simple widget's SetValues */
3756	static Boolint
3757	XawTextChangeSensitive(Widget w)
3758	{
3759	Arg args[1];
3760	TextWidget tw = (TextWidget)w;
3761
3762	(*(&simpleClassRec)->simple_class.change_sensitive)(w);
3763
3764	XtSetArg(args[0], XtNancestorSensitive,((void)( (args[0]).name = (((char*)&XtStrings[34])), (args [0]).value = (XtArgVal)((tw->core.ancestor_sensitive && tw->core.sensitive)) ))
3765	(tw->core.ancestor_sensitive && tw->core.sensitive))((void)( (args[0]).name = (((char*)&XtStrings[34])), (args [0]).value = (XtArgVal)((tw->core.ancestor_sensitive && tw->core.sensitive)) ));
3766	if (tw->text.vbar)
3767	XtSetValues(tw->text.vbar, args, ONE((Cardinal)1));
3768	if (tw->text.hbar)
3769	XtSetValues(tw->text.hbar, args, ONE((Cardinal)1));
3770	return (False0);
3771	}
3772
3773	/*
3774	* Function:
3775	* XawTextGetValuesHook
3776	*
3777	* Parameters:
3778	* w - Text Widget
3779	* args - argument list
3780	* num_args - number of args
3781	*
3782	* Description:
3783	* This is a get values hook routine that gets the
3784	* values in the text source and sink.
3785	*/
3786	static void
3787	XawTextGetValuesHook(Widget w, ArgList args, Cardinal *num_args)
3788	{
3789	XtGetValues(((TextWidget)w)->text.source, args, *num_args);
3790	XtGetValues(((TextWidget)w)->text.sink, args, *num_args);
3791	}
3792
3793	/*
3794	* Function:
3795	* FindGoodPosition
3796	*
3797	* Parameters:
3798	* pos - any position
3799	*
3800	* Description:
3801	* Returns a valid position given any postition.
3802	*
3803	* Returns:
3804	* A position between (0 and lastPos)
3805	*/
3806	static XawTextPosition
3807	FindGoodPosition(TextWidget ctx, XawTextPosition pos)
3808	{
3809	if (pos < 0)
3810	return (0);
3811	return (((pos > ctx->text.lastPos) ? ctx->text.lastPos : pos));
3812	}
3813
3814	/* Li wrote this so the IM can find a given text position's screen position */
3815	void
3816	_XawTextPosToXY(Widget w, XawTextPosition pos, Position x, Position y)
3817	{
3818	int line, ix, iy;
3819
3820	LineAndXYForPosition((TextWidget)w, pos, &line, &ix, &iy);
3821	*x = ix;
3822	*y = iy;
3823	}
3824
3825	/*******************************************************************
3826	The following routines provide procedural interfaces to Text window state
3827	setting and getting. They need to be redone so than the args code can use
3828	them. I suggest we create a complete set that takes the context as an
3829	argument and then have the public version lookup the context and call the
3830	internal one. The major value of this set is that they have actual application
3831	clients and therefore the functionality provided is required for any future
3832	version of Text.
3833	********************************************************************/
3834	void
3835	XawTextDisplay(Widget w)
3836	{
3837	TextWidget ctx = (TextWidget)w;
3838
3839	if (!XtIsRealized(w)(XtWindowOfObject(w) != 0L))
3840	return;
3841
3842	_XawTextPrepareToUpdate(ctx);
3843	ctx->text.clear_to_eol = True1;
3844	DisplayTextWindow(w);
3845	_XawTextExecuteUpdate(ctx);
3846	}
3847
3848	void
3849	XawTextSetSelectionArray(Widget w, XawTextSelectType *sarray)
3850	{
3851	((TextWidget)w)->text.sarray = sarray;
3852	}
3853
3854	void
3855	XawTextGetSelectionPos(Widget w, XawTextPosition left, XawTextPosition right)
3856	{
3857	*left = ((TextWidget)w)->text.s.left;
3858	*right = ((TextWidget)w)->text.s.right;
3859	}
3860
3861	void
3862	_XawTextSetSource(Widget w, Widget source,
3863	XawTextPosition top, XawTextPosition startPos)
3864	{
3865	TextWidget ctx = (TextWidget)w;
3866	#ifndef OLDXAW1
3867	Boolint resolve = False0;
3868	#endif
3869
3870	#ifndef OLDXAW1
3871	if (source != ctx->text.source)
3872	_XawSourceRemoveText(ctx->text.source, w, ctx->text.source &&
3873	XtParent(ctx->text.source)((ctx->text.source)->core.parent) == w);
3874	_XawSourceAddText(source, w);
3875
3876	if (source != ctx->text.source \|\| ctx->text.insertPos != startPos)
3877	resolve = True1;
3878
3879	ctx->text.source_changed = SRC_CHANGE_OVERLAP3;
3880	#endif
3881	ctx->text.source = source;
3882	ctx->text.s.left = ctx->text.s.right = 0;
3883	ctx->text.lastPos = GETLASTPOSXawTextSourceScan((ctx)->text.source, 0, XawstAll, XawsdRight , 1, 1);
3884	top = FindGoodPosition(ctx, top);
3885	startPos = FindGoodPosition(ctx, startPos);
3886	ctx->text.insertPos = ctx->text.old_insert = startPos;
3887	_XawTextPrepareToUpdate(ctx);
3888
3889	_XawTextBuildLineTable(ctx, top, True1);
3890
3891	_XawTextExecuteUpdate(ctx);
3892	#ifndef OLDXAW1
3893	if (resolve)
3894	_XawTextSetLineAndColumnNumber(ctx, True1);
3895	#endif
3896	}
3897
3898	void
3899	XawTextSetSource(Widget w, Widget source, XawTextPosition top)
3900	{
3901	_XawTextSetSource(w, source, top, top);
3902	}
3903
3904	/*
3905	* This public routine deletes the text from startPos to endPos in a source and
3906	* then inserts, at startPos, the text that was passed. As a side effect it
3907	* "invalidates" that portion of the displayed text (if any), so that things
3908	* will be repainted properly.
3909	*/
3910	int
3911	XawTextReplace(Widget w, XawTextPosition startPos, XawTextPosition endPos,
3912	XawTextBlock *text)
3913	{
3914	TextWidget ctx = (TextWidget)w;
3915	int result;
3916	#ifndef OLDXAW1
3917	Cardinal i;
3918	TextSrcObject src = (TextSrcObject)ctx->text.source;
3919
3920	for (i = 0; i < src->textSrc.num_text; i++)
3921	_XawTextPrepareToUpdate((TextWidget)src->textSrc.text[i]);
3922	#else
3923	_XawTextPrepareToUpdate(ctx);
3924	#endif
3925
3926	endPos = FindGoodPosition(ctx, endPos);
3927	startPos = FindGoodPosition(ctx, startPos);
3928	result = _XawTextReplace(ctx, startPos, endPos, text);
3929
3930	#ifndef OLDXAW1
3931	for (i = 0; i < src->textSrc.num_text; i++)
3932	_XawTextExecuteUpdate((TextWidget)src->textSrc.text[i]);
3933	#else
3934	_XawTextExecuteUpdate(ctx);
3935	#endif
3936
3937	return (result);
3938	}
3939
3940	XawTextPosition
3941	XawTextTopPosition(Widget w)
3942	{
3943	return (((TextWidget)w)->text.lt.top);
3944	}
3945
3946	XawTextPosition
3947	XawTextLastPosition(Widget w)
3948	{
3949	return (((TextWidget)w)->text.lastPos);
3950	}
3951
3952	void
3953	XawTextSetInsertionPoint(Widget w, XawTextPosition position)
3954	{
3955	TextWidget ctx = (TextWidget)w;
3956
3957	_XawTextPrepareToUpdate(ctx);
3958	ctx->text.insertPos = FindGoodPosition(ctx, position);
3959	ctx->text.showposition = True1;
3960	ctx->text.from_left = -1;
3961
3962	_XawTextExecuteUpdate(ctx);
3963	#ifndef OLDXAW1
3964	_XawTextSetLineAndColumnNumber(ctx, False0);
3965	#endif
3966	}
3967
3968	XawTextPosition
3969	XawTextGetInsertionPoint(Widget w)
3970	{
3971	return (((TextWidget)w)->text.insertPos);
3972	}
3973
3974	/*
3975	* Note: Must walk the selection list in opposite order from TextLoseSelection
3976	*/
3977	void
3978	XawTextUnsetSelection(Widget w)
3979	{
3980	TextWidget ctx = (TextWidget)w;
3981
3982	while (ctx->text.s.atom_count != 0) {
3983	Atom sel = ctx->text.s.selections[ctx->text.s.atom_count - 1];
3984
3985	if (sel != (Atom) 0) {
3986	/*
3987	* As selections are lost the atom_count will decrement
3988	*/
3989	if (GetCutBufferNumber(sel) == NOT_A_CUT_BUFFER-1)
3990	XtDisownSelection(w, sel, ctx->text.time);
3991	TextLoseSelection(w, &sel); /* In case this is a cut buffer, or
3992	XtDisownSelection failed to call us */
3993	}
3994	}
3995	}
3996
3997	void
3998	XawTextSetSelection(Widget w, XawTextPosition left, XawTextPosition right)
3999	{
4000	TextWidget ctx = (TextWidget)w;
4001
4002	_XawTextPrepareToUpdate(ctx);
4003	_XawTextSetSelection(ctx, FindGoodPosition(ctx, left),
4004	FindGoodPosition(ctx, right), NULL((void*)0), 0);
4005	_XawTextExecuteUpdate(ctx);
4006	}
4007
4008	void
4009	XawTextInvalidate(Widget w, XawTextPosition from, XawTextPosition to)
4010	{
4011	TextWidget ctx = (TextWidget)w;
4012
4013	from = FindGoodPosition(ctx, from);
4014	to = FindGoodPosition(ctx, to);
4015	ctx->text.lastPos = GETLASTPOSXawTextSourceScan((ctx)->text.source, 0, XawstAll, XawsdRight , 1, 1);
4016	_XawTextPrepareToUpdate(ctx);
4017	_XawTextNeedsUpdating(ctx, from, to);
4018	_XawTextExecuteUpdate(ctx);
4019	}
4020
4021	/ARGSUSED/
4022	void
4023	XawTextDisableRedisplay(Widget w)
4024	{
4025	((TextWidget)w)->text.update_disabled = True1;
4026	_XawTextPrepareToUpdate((TextWidget)w);
4027	}
4028
4029	void
4030	XawTextEnableRedisplay(Widget w)
4031	{
4032	TextWidget ctx = (TextWidget)w;
4033	XawTextPosition lastPos;
4034
4035	if (!ctx->text.update_disabled)
4036	return;
4037
4038	ctx->text.update_disabled = False0;
4039	lastPos = ctx->text.lastPos = GETLASTPOSXawTextSourceScan((ctx)->text.source, 0, XawstAll, XawsdRight , 1, 1);
4040	ctx->text.lt.top = FindGoodPosition(ctx, ctx->text.lt.top);
4041	ctx->text.insertPos = FindGoodPosition(ctx, ctx->text.insertPos);
4042
4043	if (ctx->text.s.left > lastPos \|\| ctx->text.s.right > lastPos)
4044	ctx->text.s.left = ctx->text.s.right = 0;
4045
4046	_XawTextExecuteUpdate(ctx);
4047	}
4048
4049	Widget
4050	XawTextGetSource(Widget w)
4051	{
4052	return (((TextWidget)w)->text.source);
4053	}
4054
4055	Widget
4056	XawTextGetSink(Widget w)
4057	{
4058	return (((TextWidget)w)->text.sink);
4059	}
4060
4061	void
4062	XawTextDisplayCaret(Widget w,
4063	#if NeedWidePrototypes0
4064	int display_caret
4065	#else
4066	Boolean display_caret
4067	#endif
4068	)
4069	{
4070	TextWidget ctx = (TextWidget)w;
4071
4072	if (XtIsRealized(w)(XtWindowOfObject(w) != 0L)) {
4073	_XawTextPrepareToUpdate(ctx);
4074	ctx->text.display_caret = display_caret;
4075	_XawTextExecuteUpdate(ctx);
4076	}
4077	else
4078	ctx->text.display_caret = display_caret;
4079	}
4080
4081	/*
4082	* Function:
4083	* XawTextSearch
4084	*
4085	* Parameters:
4086	* w - text widget
4087	* dir - direction to search
4088	* text - text block containing info about the string to search for
4089	*
4090	* Description:
4091	* Searches for the given text block.
4092	*
4093	* Returns:
4094	* The position of the text found, or XawTextSearchError on an error
4095	*/
4096	XawTextPosition
4097	XawTextSearch(Widget w,
4098	#if NeedWidePrototypes0
4099	int dir,
4100	#else
4101	XawTextScanDirection dir,
4102	#endif
4103	XawTextBlock *text)
4104	{
4105	TextWidget ctx = (TextWidget)w;
4106
4107	return (SrcSearchXawTextSourceSearch(ctx->text.source, ctx->text.insertPos, dir, text));
4108	}
4109
4110	TextClassRec textClassRec = {
4111	/* core */
4112	{
4113	(WidgetClass)&simpleClassRec, /* superclass */
4114	"Text", /* class_name */
4115	sizeof(TextRec), /* widget_size */
4116	XawTextClassInitialize, /* class_initialize */
4117	NULL((void)0), / class_part_init */
4118	False0, /* class_inited */
4119	XawTextInitialize, /* initialize */
4120	NULL((void)0), / initialize_hook */
4121	XawTextRealize, /* realize */
4122	_XawTextActionsTable, /* actions */
4123	0, /* num_actions */
4124	resources, /* resources */
4125	XtNumber(resources)((Cardinal) (sizeof(resources) / sizeof(resources[0]))), /* num_resource */
4126	NULLQUARK((XrmQuark) 0), /* xrm_class */
4127	True1, /* compress_motion */
4128	XtExposeGraphicsExpose0x10 \| /* compress_exposure */
4129	XtExposeNoExpose0x40,
4130	True1, /* compress_enterleave */
4131	False0, /* visible_interest */
4132	XawTextDestroy, /* destroy */
4133	XawTextResize, /* resize */
4134	XawTextExpose, /* expose */
4135	XawTextSetValues, /* set_values */
4136	NULL((void)0), / set_values_hook */
4137	XtInheritSetValuesAlmost((XtAlmostProc) _XtInherit), /* set_values_almost */
4138	XawTextGetValuesHook, /* get_values_hook */
4139	NULL((void)0), / accept_focus */
4140	XtVersion(11 * 1000 + 6), /* version */
4141	NULL((void)0), / callback_private */
4142	_XawDefaultTextTranslations, /* tm_table */
4143	XtInheritQueryGeometry((XtGeometryHandler) _XtInherit), /* query_geometry */
4144	XtInheritDisplayAccelerator((XtStringProc) _XtInherit), /* display_accelerator */
4145	NULL((void)0), / extension */
4146	},
4147	/* simple */
4148	{
4149	XawTextChangeSensitive, /* change_sensitive */
4150	},
4151	/* text */
4152	{
4153	NULL((void)0), / extension */
4154	}
4155	};
4156
4157	WidgetClass textWidgetClass = (WidgetClass)&textClassRec;