xref: /aoo41x/main/svtools/source/edit/xtextedt.cxx (revision cdf0e10c) 
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27 
28 // MARKER(update_precomp.py): autogen include statement, do not remove
29 #include "precompiled_svtools.hxx"
30 
31 #include <svtools/xtextedt.hxx>
32 #include <vcl/svapp.hxx>  // International
33 #include <unotools/textsearch.hxx>
34 #include <com/sun/star/util/SearchOptions.hpp>
35 #include <com/sun/star/util/SearchFlags.hpp>
36 
37 using namespace ::com::sun::star;
38 
39 
40 
41 // -------------------------------------------------------------------------
42 // class ExtTextEngine
43 // -------------------------------------------------------------------------
44 ExtTextEngine::ExtTextEngine() : maGroupChars( String::CreateFromAscii( "(){}[]", 6 ) )
45 {
46 }
47 
48 ExtTextEngine::~ExtTextEngine()
49 {
50 }
51 
52 TextSelection ExtTextEngine::MatchGroup( const TextPaM& rCursor ) const
53 {
54 	TextSelection aSel( rCursor );
55 	sal_uInt16 nPos = rCursor.GetIndex();
56 	sal_uLong nPara = rCursor.GetPara();
57 	sal_uLong nParas = GetParagraphCount();
58 	if ( ( nPara < nParas ) && ( nPos < GetTextLen( nPara ) ) )
59 	{
60 		sal_uInt16 nMatchChar = maGroupChars.Search( GetText( rCursor.GetPara() ).GetChar( nPos ) );
61 		if ( nMatchChar != STRING_NOTFOUND )
62 		{
63 			if ( ( nMatchChar % 2 ) == 0 )
64 			{
65 				// Vorwaerts suchen...
66 				sal_Unicode nSC = maGroupChars.GetChar( nMatchChar );
67 				sal_Unicode nEC = maGroupChars.GetChar( nMatchChar+1 );
68 
69 				sal_uInt16 nCur = nPos+1;
70 				sal_uInt16 nLevel = 1;
71 				while ( nLevel && ( nPara < nParas ) )
72 				{
73 					XubString aStr = GetText( nPara );
74 					while ( nCur < aStr.Len() )
75 					{
76 						if ( aStr.GetChar( nCur ) == nSC )
77 							nLevel++;
78 						else if ( aStr.GetChar( nCur ) == nEC )
79 						{
80 							nLevel--;
81 							if ( !nLevel )
82 								break;	// while nCur...
83 						}
84 						nCur++;
85 					}
86 
87 					if ( nLevel )
88 					{
89 						nPara++;
90 						nCur = 0;
91 					}
92 				}
93 				if ( nLevel == 0 )	// gefunden
94 				{
95 					aSel.GetStart() = rCursor;
96 					aSel.GetEnd() = TextPaM( nPara, nCur+1 );
97 				}
98 			}
99 			else
100 			{
101 				// Rueckwaerts suchen...
102 				xub_Unicode nEC = maGroupChars.GetChar( nMatchChar );
103 				xub_Unicode nSC = maGroupChars.GetChar( nMatchChar-1 );
104 
105 				sal_uInt16 nCur = rCursor.GetIndex()-1;
106 				sal_uInt16 nLevel = 1;
107 				while ( nLevel )
108 				{
109 					if ( GetTextLen( nPara ) )
110 					{
111 						XubString aStr = GetText( nPara );
112 						while ( nCur )
113 						{
114 							if ( aStr.GetChar( nCur ) == nSC )
115 							{
116 								nLevel--;
117 								if ( !nLevel )
118 									break;	// while nCur...
119 							}
120 							else if ( aStr.GetChar( nCur ) == nEC )
121 								nLevel++;
122 
123 							nCur--;
124 						}
125 					}
126 
127 					if ( nLevel )
128 					{
129 						if ( nPara )
130 						{
131 							nPara--;
132 							nCur = GetTextLen( nPara )-1;	// egal ob negativ, weil if Len()
133 						}
134 						else
135 							break;
136 					}
137 				}
138 
139 				if ( nLevel == 0 )	// gefunden
140 				{
141 					aSel.GetStart() = rCursor;
142 					aSel.GetStart().GetIndex()++;	// hinter das Zeichen
143 					aSel.GetEnd() = TextPaM( nPara, nCur );
144 				}
145 			}
146 		}
147 	}
148 	return aSel;
149 }
150 
151 sal_Bool ExtTextEngine::Search( TextSelection& rSel, const util::SearchOptions& rSearchOptions, sal_Bool bForward )
152 {
153 	TextSelection aSel( rSel );
154 	aSel.Justify();
155 
156 	sal_Bool bSearchInSelection = (0 != (rSearchOptions.searchFlag & util::SearchFlags::REG_NOT_BEGINOFLINE) );
157 
158 	TextPaM aStartPaM( aSel.GetEnd() );
159 	if ( aSel.HasRange() && ( ( bSearchInSelection && bForward ) || ( !bSearchInSelection && !bForward ) ) )
160 	{
161 		aStartPaM = aSel.GetStart();
162 	}
163 
164 	bool bFound = false;
165 	sal_uLong nStartNode, nEndNode;
166 
167 	if ( bSearchInSelection )
168 		nEndNode = bForward ? aSel.GetEnd().GetPara() : aSel.GetStart().GetPara();
169 	else
170 		nEndNode = bForward ? (GetParagraphCount()-1) : 0;
171 
172 	nStartNode = aStartPaM.GetPara();
173 
174 	util::SearchOptions aOptions( rSearchOptions );
175 	aOptions.Locale = Application::GetSettings().GetLocale();
176 	utl::TextSearch aSearcher( rSearchOptions );
177 
178 	// ueber die Absaetze iterieren...
179 	for ( sal_uLong nNode = nStartNode;
180 			bForward ?  ( nNode <= nEndNode) : ( nNode >= nEndNode );
181 			bForward ? nNode++ : nNode-- )
182 	{
183 		String aText = GetText( nNode );
184 		sal_uInt16 nStartPos = 0;
185 		sal_uInt16 nEndPos = aText.Len();
186 		if ( nNode == nStartNode )
187 		{
188 			if ( bForward )
189 				nStartPos = aStartPaM.GetIndex();
190 			else
191 				nEndPos = aStartPaM.GetIndex();
192 		}
193 		if ( ( nNode == nEndNode ) && bSearchInSelection )
194 		{
195 			if ( bForward )
196 				nEndPos = aSel.GetEnd().GetIndex();
197 			else
198 				nStartPos = aSel.GetStart().GetIndex();
199 		}
200 
201 		if ( bForward )
202 			bFound = aSearcher.SearchFrwrd( aText, &nStartPos, &nEndPos );
203 		else
204 			bFound = aSearcher.SearchBkwrd( aText, &nEndPos, &nStartPos );
205 
206 		if ( bFound )
207 		{
208 			rSel.GetStart().GetPara() = nNode;
209 			rSel.GetStart().GetIndex() = nStartPos;
210 			rSel.GetEnd().GetPara() = nNode;
211 			rSel.GetEnd().GetIndex() = nEndPos;
212 			// Ueber den Absatz selektieren?
213 			// Select over the paragraph?
214 			// FIXME  This should be max long...
215 			if( nEndPos == sal::static_int_cast<sal_uInt16>(-1) ) // sal_uInt16 for 0 and -1 !
216 			{
217 				if ( (rSel.GetEnd().GetPara()+1) < GetParagraphCount() )
218 				{
219 					rSel.GetEnd().GetPara()++;
220 					rSel.GetEnd().GetIndex() = 0;
221 				}
222 				else
223 				{
224 					rSel.GetEnd().GetIndex() = nStartPos;
225 					bFound = false;
226 				}
227 			}
228 
229 			break;
230 		}
231 
232 		if ( !bForward && !nNode )	// Bei rueckwaertsuche, wenn nEndNode = 0:
233 			break;
234 	}
235 
236 	return bFound;
237 }
238 
239 
240 // -------------------------------------------------------------------------
241 // class ExtTextView
242 // -------------------------------------------------------------------------
243 ExtTextView::ExtTextView( ExtTextEngine* pEng, Window* pWindow )
244 	: TextView( pEng, pWindow )
245 {
246 }
247 
248 ExtTextView::~ExtTextView()
249 {
250 }
251 
252 sal_Bool ExtTextView::MatchGroup()
253 {
254 	TextSelection aTmpSel( GetSelection() );
255 	aTmpSel.Justify();
256 	if ( ( aTmpSel.GetStart().GetPara() != aTmpSel.GetEnd().GetPara() ) ||
257 		 ( ( aTmpSel.GetEnd().GetIndex() - aTmpSel.GetStart().GetIndex() ) > 1 ) )
258 	{
259 		return sal_False;
260 	}
261 
262 	TextSelection aMatchSel = ((ExtTextEngine*)GetTextEngine())->MatchGroup( aTmpSel.GetStart() );
263 	if ( aMatchSel.HasRange() )
264 		SetSelection( aMatchSel );
265 
266 	return aMatchSel.HasRange() ? sal_True : sal_False;
267 }
268 
269 sal_Bool ExtTextView::Search( const util::SearchOptions& rSearchOptions, sal_Bool bForward )
270 {
271 	sal_Bool bFound = sal_False;
272 	TextSelection aSel( GetSelection() );
273 	if ( ((ExtTextEngine*)GetTextEngine())->Search( aSel, rSearchOptions, bForward ) )
274 	{
275 		bFound = sal_True;
276 		// Erstmal den Anfang des Wortes als Selektion einstellen,
277 		// damit das ganze Wort in den sichtbaren Bereich kommt.
278 		SetSelection( aSel.GetStart() );
279 		ShowCursor( sal_True, sal_False );
280 	}
281 	else
282 	{
283 		aSel = GetSelection().GetEnd();
284 	}
285 
286 	SetSelection( aSel );
287 	ShowCursor();
288 
289 	return bFound;
290 }
291 
292 sal_uInt16 ExtTextView::Replace( const util::SearchOptions& rSearchOptions, sal_Bool bAll, sal_Bool bForward )
293 {
294 	sal_uInt16 nFound = 0;
295 
296 	if ( !bAll )
297 	{
298 		if ( GetSelection().HasRange() )
299 		{
300 			InsertText( rSearchOptions.replaceString );
301 			nFound = 1;
302 			Search( rSearchOptions, bForward );	// gleich zum naechsten
303 		}
304 		else
305 		{
306 			if( Search( rSearchOptions, bForward ) )
307 				nFound = 1;
308 		}
309 	}
310 	else
311 	{
312 		// Der Writer ersetzt alle, vom Anfang bis Ende...
313 
314 		ExtTextEngine* pTextEngine = (ExtTextEngine*)GetTextEngine();
315 
316 		// HideSelection();
317 		TextSelection aSel;
318 
319 		sal_Bool bSearchInSelection = (0 != (rSearchOptions.searchFlag & util::SearchFlags::REG_NOT_BEGINOFLINE) );
320 		if ( bSearchInSelection )
321 		{
322 			aSel = GetSelection();
323 			aSel.Justify();
324 		}
325 
326 		TextSelection aSearchSel( aSel );
327 
328 		sal_Bool bFound = pTextEngine->Search( aSel, rSearchOptions, sal_True );
329 		if ( bFound )
330 			pTextEngine->UndoActionStart();
331 		while ( bFound )
332 		{
333 			nFound++;
334 
335 			TextPaM aNewStart = pTextEngine->ImpInsertText( aSel, rSearchOptions.replaceString );
336 			aSel = aSearchSel;
337 			aSel.GetStart() = aNewStart;
338 			bFound = pTextEngine->Search( aSel, rSearchOptions, sal_True );
339 		}
340 		if ( nFound )
341 		{
342 			SetSelection( aSel.GetStart() );
343 			pTextEngine->FormatAndUpdate( this );
344 			pTextEngine->UndoActionEnd();
345 		}
346 	}
347 	return nFound;
348 }
349 
350 sal_Bool ExtTextView::ImpIndentBlock( sal_Bool bRight )
351 {
352 	sal_Bool bDone = sal_False;
353 
354 	TextSelection aSel = GetSelection();
355 	aSel.Justify();
356 
357 	HideSelection();
358 	GetTextEngine()->UndoActionStart();
359 
360 	sal_uLong nStartPara = aSel.GetStart().GetPara();
361 	sal_uLong nEndPara = aSel.GetEnd().GetPara();
362 	if ( aSel.HasRange() && !aSel.GetEnd().GetIndex() )
363 	{
364 		nEndPara--;	// den dann nicht einruecken...
365 	}
366 
367 	for ( sal_uLong nPara = nStartPara; nPara <= nEndPara; nPara++ )
368 	{
369 		if ( bRight )
370 		{
371 			// Tabs hinzufuegen
372 			GetTextEngine()->ImpInsertText( TextPaM( nPara, 0 ), '\t' );
373 			bDone = sal_True;
374 		}
375 		else
376 		{
377 			// Tabs/Blanks entfernen
378 			String aText = GetTextEngine()->GetText( nPara );
379 			if ( aText.Len() && (
380 					( aText.GetChar( 0 ) == '\t' ) ||
381 					( aText.GetChar( 0 ) == ' ' ) ) )
382 			{
383 				GetTextEngine()->ImpDeleteText( TextSelection( TextPaM( nPara, 0 ), TextPaM( nPara, 1 ) ) );
384 				bDone = sal_True;
385 			}
386 		}
387 	}
388 
389 	GetTextEngine()->UndoActionEnd();
390 
391 	sal_Bool bRange = aSel.HasRange();
392 	if ( bRight )
393 	{
394 		aSel.GetStart().GetIndex()++;
395 		if ( bRange && ( aSel.GetEnd().GetPara() == nEndPara ) )
396 			aSel.GetEnd().GetIndex()++;
397 	}
398 	else
399 	{
400 		if ( aSel.GetStart().GetIndex() )
401 			aSel.GetStart().GetIndex()--;
402 		if ( bRange && aSel.GetEnd().GetIndex() )
403 			aSel.GetEnd().GetIndex()--;
404 	}
405 
406 	ImpSetSelection( aSel );
407 	GetTextEngine()->FormatAndUpdate( this );
408 
409 	return bDone;
410 }
411 
412 sal_Bool ExtTextView::IndentBlock()
413 {
414 	return ImpIndentBlock( sal_True );
415 }
416 
417 sal_Bool ExtTextView::UnindentBlock()
418 {
419 	return ImpIndentBlock( sal_False );
420 }
421 
422