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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include <drawinglayer/primitive2d/textbreakuphelper.hxx>
21 : #include <drawinglayer/primitive2d/textdecoratedprimitive2d.hxx>
22 : #include <com/sun/star/i18n/BreakIterator.hpp>
23 : #include <comphelper/processfactory.hxx>
24 : #include <com/sun/star/i18n/CharacterIteratorMode.hdl>
25 : #include <com/sun/star/i18n/WordType.hpp>
26 : #include <com/sun/star/i18n/CharType.hpp>
27 :
28 :
29 :
30 : namespace drawinglayer
31 : {
32 : namespace primitive2d
33 : {
34 1220 : TextBreakupHelper::TextBreakupHelper(const TextSimplePortionPrimitive2D& rSource)
35 : : mrSource(rSource),
36 : mxResult(),
37 : maTextLayouter(),
38 : maDecTrans(),
39 1220 : mbNoDXArray(false)
40 : {
41 : OSL_ENSURE(dynamic_cast< const TextSimplePortionPrimitive2D* >(&mrSource), "TextBreakupHelper with illegal primitive created (!)");
42 1220 : maDecTrans = mrSource.getTextTransform();
43 1220 : mbNoDXArray = mrSource.getDXArray().empty();
44 :
45 1220 : if(mbNoDXArray)
46 : {
47 : // init TextLayouter when no dxarray
48 : maTextLayouter.setFontAttribute(
49 0 : mrSource.getFontAttribute(),
50 0 : maDecTrans.getScale().getX(),
51 0 : maDecTrans.getScale().getY(),
52 0 : mrSource.getLocale());
53 : }
54 1220 : }
55 :
56 1220 : TextBreakupHelper::~TextBreakupHelper()
57 : {
58 1220 : }
59 :
60 1388 : void TextBreakupHelper::breakupPortion(Primitive2DVector& rTempResult, sal_Int32 nIndex, sal_Int32 nLength, bool bWordLineMode)
61 : {
62 1388 : if(nLength && !(nIndex == mrSource.getTextPosition() && nLength == mrSource.getTextLength()))
63 : {
64 : // prepare values for new portion
65 514 : basegfx::B2DHomMatrix aNewTransform;
66 1028 : ::std::vector< double > aNewDXArray;
67 514 : const bool bNewStartIsNotOldStart(nIndex > mrSource.getTextPosition());
68 :
69 514 : if(!mbNoDXArray)
70 : {
71 : // prepare new DXArray for the single word
72 3084 : aNewDXArray = ::std::vector< double >(
73 1028 : mrSource.getDXArray().begin() + (nIndex - mrSource.getTextPosition()),
74 1542 : mrSource.getDXArray().begin() + ((nIndex + nLength) - mrSource.getTextPosition()));
75 : }
76 :
77 514 : if(bNewStartIsNotOldStart)
78 : {
79 : // needs to be moved to a new start position
80 168 : double fOffset(0.0);
81 :
82 168 : if(mbNoDXArray)
83 : {
84 : // evaluate using TextLayouter
85 0 : fOffset = maTextLayouter.getTextWidth(mrSource.getText(), mrSource.getTextPosition(), nIndex);
86 : }
87 : else
88 : {
89 : // get from DXArray
90 168 : const sal_Int32 nIndex2(nIndex - mrSource.getTextPosition());
91 168 : fOffset = mrSource.getDXArray()[nIndex2 - 1];
92 : }
93 :
94 : // need offset without FontScale for building the new transformation. The
95 : // new transformation will be multiplied with the current text transformation
96 : // so FontScale would be double
97 168 : double fOffsetNoScale(fOffset);
98 168 : const double fFontScaleX(maDecTrans.getScale().getX());
99 :
100 504 : if(!basegfx::fTools::equal(fFontScaleX, 1.0)
101 504 : && !basegfx::fTools::equalZero(fFontScaleX))
102 : {
103 168 : fOffsetNoScale /= fFontScaleX;
104 : }
105 :
106 : // apply needed offset to transformation
107 168 : aNewTransform.translate(fOffsetNoScale, 0.0);
108 :
109 168 : if(!mbNoDXArray)
110 : {
111 : // DXArray values need to be corrected with the offset, too. Here,
112 : // take the scaled offset since the DXArray is scaled
113 168 : const sal_uInt32 nArraySize(aNewDXArray.size());
114 :
115 485 : for(sal_uInt32 a(0); a < nArraySize; a++)
116 : {
117 317 : aNewDXArray[a] -= fOffset;
118 : }
119 : }
120 : }
121 :
122 : // add text transformation to new transformation
123 514 : aNewTransform = maDecTrans.getB2DHomMatrix() * aNewTransform;
124 :
125 : // callback to allow evtl. changes
126 514 : const bool bCreate(allowChange(rTempResult.size(), aNewTransform, nIndex, nLength));
127 :
128 514 : if(bCreate)
129 : {
130 : // check if we have a decorated primitive as source
131 : const TextDecoratedPortionPrimitive2D* pTextDecoratedPortionPrimitive2D =
132 514 : dynamic_cast< const TextDecoratedPortionPrimitive2D* >(&mrSource);
133 :
134 514 : if(pTextDecoratedPortionPrimitive2D)
135 : {
136 : // create a TextDecoratedPortionPrimitive2D
137 : rTempResult.push_back(
138 : new TextDecoratedPortionPrimitive2D(
139 : aNewTransform,
140 514 : mrSource.getText(),
141 : nIndex,
142 : nLength,
143 : aNewDXArray,
144 514 : mrSource.getFontAttribute(),
145 514 : mrSource.getLocale(),
146 514 : mrSource.getFontColor(),
147 514 : mrSource.getTextFillColor(),
148 :
149 : pTextDecoratedPortionPrimitive2D->getOverlineColor(),
150 : pTextDecoratedPortionPrimitive2D->getTextlineColor(),
151 : pTextDecoratedPortionPrimitive2D->getFontOverline(),
152 : pTextDecoratedPortionPrimitive2D->getFontUnderline(),
153 514 : pTextDecoratedPortionPrimitive2D->getUnderlineAbove(),
154 : pTextDecoratedPortionPrimitive2D->getTextStrikeout(),
155 :
156 : // reset WordLineMode when BreakupUnit_word is executed; else copy original
157 0 : bWordLineMode ? false : pTextDecoratedPortionPrimitive2D->getWordLineMode(),
158 :
159 : pTextDecoratedPortionPrimitive2D->getTextEmphasisMark(),
160 514 : pTextDecoratedPortionPrimitive2D->getEmphasisMarkAbove(),
161 514 : pTextDecoratedPortionPrimitive2D->getEmphasisMarkBelow(),
162 : pTextDecoratedPortionPrimitive2D->getTextRelief(),
163 4112 : pTextDecoratedPortionPrimitive2D->getShadow()));
164 : }
165 : else
166 : {
167 : // create a SimpleTextPrimitive
168 : rTempResult.push_back(
169 : new TextSimplePortionPrimitive2D(
170 : aNewTransform,
171 0 : mrSource.getText(),
172 : nIndex,
173 : nLength,
174 : aNewDXArray,
175 0 : mrSource.getFontAttribute(),
176 0 : mrSource.getLocale(),
177 0 : mrSource.getFontColor()));
178 : }
179 514 : }
180 : }
181 1388 : }
182 :
183 514 : bool TextBreakupHelper::allowChange(sal_uInt32 /*nCount*/, basegfx::B2DHomMatrix& /*rNewTransform*/, sal_uInt32 /*nIndex*/, sal_uInt32 /*nLength*/)
184 : {
185 514 : return true;
186 : }
187 :
188 1220 : void TextBreakupHelper::breakup(BreakupUnit aBreakupUnit)
189 : {
190 1220 : if(mrSource.getTextLength())
191 : {
192 1220 : Primitive2DVector aTempResult;
193 1220 : static ::com::sun::star::uno::Reference< ::com::sun::star::i18n::XBreakIterator > xBreakIterator;
194 :
195 1220 : if(!xBreakIterator.is())
196 : {
197 4 : ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext > xContext( ::comphelper::getProcessComponentContext() );
198 4 : xBreakIterator = ::com::sun::star::i18n::BreakIterator::create(xContext);
199 : }
200 :
201 1220 : const OUString& rTxt = mrSource.getText();
202 1220 : const sal_Int32 nTextLength(mrSource.getTextLength());
203 1220 : const ::com::sun::star::lang::Locale& rLocale = mrSource.getLocale();
204 1220 : const sal_Int32 nTextPosition(mrSource.getTextPosition());
205 1220 : sal_Int32 nCurrent(nTextPosition);
206 :
207 1220 : switch(aBreakupUnit)
208 : {
209 : case BreakupUnit_character:
210 : {
211 : sal_Int32 nDone;
212 0 : sal_Int32 nNextCellBreak(xBreakIterator->nextCharacters(rTxt, nTextPosition, rLocale, ::com::sun::star::i18n::CharacterIteratorMode::SKIPCELL, 0, nDone));
213 0 : sal_Int32 a(nTextPosition);
214 :
215 0 : for(; a < nTextPosition + nTextLength; a++)
216 : {
217 0 : if(a == nNextCellBreak)
218 : {
219 0 : breakupPortion(aTempResult, nCurrent, a - nCurrent, false);
220 0 : nCurrent = a;
221 0 : nNextCellBreak = xBreakIterator->nextCharacters(rTxt, a, rLocale, ::com::sun::star::i18n::CharacterIteratorMode::SKIPCELL, 1, nDone);
222 : }
223 : }
224 :
225 0 : breakupPortion(aTempResult, nCurrent, a - nCurrent, false);
226 0 : break;
227 : }
228 : case BreakupUnit_word:
229 : {
230 1220 : ::com::sun::star::i18n::Boundary nNextWordBoundary(xBreakIterator->getWordBoundary(rTxt, nTextPosition, rLocale, ::com::sun::star::i18n::WordType::ANY_WORD, sal_True));
231 1220 : sal_Int32 a(nTextPosition);
232 :
233 5348 : for(; a < nTextPosition + nTextLength; a++)
234 : {
235 4128 : if(a == nNextWordBoundary.endPos)
236 : {
237 380 : if(a > nCurrent)
238 : {
239 380 : breakupPortion(aTempResult, nCurrent, a - nCurrent, true);
240 : }
241 :
242 380 : nCurrent = a;
243 :
244 : // skip spaces (maybe enhanced with a bool later if needed)
245 : {
246 380 : const sal_Int32 nEndOfSpaces(xBreakIterator->endOfCharBlock(rTxt, a, rLocale, ::com::sun::star::i18n::CharType::SPACE_SEPARATOR));
247 :
248 380 : if(nEndOfSpaces > a)
249 : {
250 370 : nCurrent = nEndOfSpaces;
251 : }
252 : }
253 :
254 380 : nNextWordBoundary = xBreakIterator->getWordBoundary(rTxt, a + 1, rLocale, ::com::sun::star::i18n::WordType::ANY_WORD, sal_True);
255 : }
256 : }
257 :
258 1220 : if(a > nCurrent)
259 : {
260 1008 : breakupPortion(aTempResult, nCurrent, a - nCurrent, true);
261 : }
262 1220 : break;
263 : }
264 : case BreakupUnit_sentence:
265 : {
266 0 : sal_Int32 nNextSentenceBreak(xBreakIterator->endOfSentence(rTxt, nTextPosition, rLocale));
267 0 : sal_Int32 a(nTextPosition);
268 :
269 0 : for(; a < nTextPosition + nTextLength; a++)
270 : {
271 0 : if(a == nNextSentenceBreak)
272 : {
273 0 : breakupPortion(aTempResult, nCurrent, a - nCurrent, false);
274 0 : nCurrent = a;
275 0 : nNextSentenceBreak = xBreakIterator->endOfSentence(rTxt, a + 1, rLocale);
276 : }
277 : }
278 :
279 0 : breakupPortion(aTempResult, nCurrent, a - nCurrent, false);
280 0 : break;
281 : }
282 : }
283 :
284 1220 : mxResult = Primitive2DVectorToPrimitive2DSequence(aTempResult);
285 : }
286 1220 : }
287 :
288 1220 : const Primitive2DSequence& TextBreakupHelper::getResult(BreakupUnit aBreakupUnit) const
289 : {
290 1220 : if(!mxResult.hasElements())
291 : {
292 1220 : const_cast< TextBreakupHelper* >(this)->breakup(aBreakupUnit);
293 : }
294 :
295 1220 : return mxResult;
296 : }
297 :
298 : } // end of namespace primitive2d
299 : } // end of namespace drawinglayer
300 :
301 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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