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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 :
21 :
22 :
23 : // Global header
24 :
25 :
26 :
27 : #include <limits.h>
28 : #include <utility>
29 : #include <vector>
30 : #include <algorithm>
31 : #include <boost/ref.hpp>
32 : #include <osl/mutex.hxx>
33 : #include <vcl/window.hxx>
34 : #include <vcl/svapp.hxx>
35 : #include <comphelper/sequenceasvector.hxx>
36 : #include <com/sun/star/uno/Any.hxx>
37 : #include <com/sun/star/uno/Reference.hxx>
38 : #include <com/sun/star/awt/Point.hpp>
39 : #include <com/sun/star/awt/Rectangle.hpp>
40 : #include <com/sun/star/accessibility/AccessibleTextType.hpp>
41 :
42 :
43 :
44 : // Project-local header
45 :
46 :
47 :
48 : #include <editeng/editdata.hxx>
49 : #include <editeng/unopracc.hxx>
50 : #include "editeng/unoedprx.hxx"
51 : #include <editeng/AccessibleStaticTextBase.hxx>
52 : #include "editeng/AccessibleEditableTextPara.hxx"
53 :
54 :
55 : using namespace ::com::sun::star;
56 : using namespace ::com::sun::star::accessibility;
57 :
58 : /* TODO:
59 : =====
60 :
61 : - separate adapter functionality from AccessibleStaticText class
62 :
63 : - refactor common loops into templates, using mem_fun
64 :
65 : */
66 :
67 : namespace accessibility
68 : {
69 : typedef ::comphelper::SequenceAsVector< beans::PropertyValue > PropertyValueVector;
70 :
71 : class PropertyValueEqualFunctor : public ::std::binary_function< beans::PropertyValue, beans::PropertyValue, bool >
72 : {
73 : public:
74 0 : PropertyValueEqualFunctor()
75 0 : {}
76 0 : bool operator() ( const beans::PropertyValue& lhs, const beans::PropertyValue& rhs ) const
77 : {
78 0 : return ( lhs.Name == rhs.Name && lhs.Value == rhs.Value );
79 : }
80 : };
81 : sal_Unicode cNewLine(0x0a);
82 :
83 :
84 : // Static Helper
85 :
86 :
87 0 : ESelection MakeSelection( sal_Int32 nStartPara, sal_Int32 nStartIndex,
88 : sal_Int32 nEndPara, sal_Int32 nEndIndex )
89 : {
90 : DBG_ASSERT(nStartPara >= 0 && nStartPara <= SAL_MAX_INT32 &&
91 : nStartIndex >= 0 && nStartIndex <= USHRT_MAX &&
92 : nEndPara >= 0 && nEndPara <= SAL_MAX_INT32 &&
93 : nEndIndex >= 0 && nEndIndex <= USHRT_MAX ,
94 : "AccessibleStaticTextBase_Impl::MakeSelection: index value overflow");
95 :
96 0 : return ESelection(nStartPara, nStartIndex, nEndPara, nEndIndex);
97 : }
98 :
99 :
100 :
101 : // AccessibleStaticTextBase_Impl declaration
102 :
103 :
104 :
105 :
106 : /** AccessibleStaticTextBase_Impl
107 :
108 : This class implements the AccessibleStaticTextBase
109 : functionality, mainly by forwarding the calls to an aggregated
110 : AccessibleEditableTextPara. As this is a therefore non-trivial
111 : adapter, factoring out the common functionality from
112 : AccessibleEditableTextPara might be a profitable future task.
113 : */
114 : class AccessibleStaticTextBase_Impl
115 : {
116 : friend class AccessibleStaticTextBase;
117 : public:
118 :
119 : // receive pointer to our frontend class and view window
120 : AccessibleStaticTextBase_Impl();
121 : ~AccessibleStaticTextBase_Impl();
122 :
123 0 : SvxEditSourceAdapter& GetEditSource() const
124 : {
125 :
126 0 : return maEditSource;
127 : }
128 :
129 : void SetEditSource( ::std::unique_ptr< SvxEditSource > && pEditSource );
130 :
131 10 : void SetEventSource( const uno::Reference< XAccessible >& rInterface )
132 : {
133 :
134 10 : mxThis = rInterface;
135 10 : }
136 0 : uno::Reference< XAccessible > GetEventSource() const
137 : {
138 :
139 0 : return mxThis;
140 : }
141 :
142 : void SetOffset( const Point& );
143 0 : Point GetOffset() const
144 : {
145 :
146 0 : ::osl::MutexGuard aGuard( maMutex ); Point aPoint( maOffset );
147 0 : return aPoint;
148 : }
149 :
150 : void UpdateChildren();
151 : void Dispose();
152 :
153 : #ifdef DBG_UTIL
154 : void CheckInvariants() const;
155 : #endif
156 :
157 : AccessibleEditableTextPara& GetParagraph( sal_Int32 nPara ) const;
158 : sal_Int32 GetParagraphCount() const;
159 :
160 0 : EPosition Index2Internal( sal_Int32 nFlatIndex ) const
161 : {
162 :
163 0 : return ImpCalcInternal( nFlatIndex, false );
164 : }
165 :
166 0 : EPosition Range2Internal( sal_Int32 nFlatIndex ) const
167 : {
168 :
169 0 : return ImpCalcInternal( nFlatIndex, true );
170 : }
171 :
172 : sal_Int32 Internal2Index( EPosition nEEIndex ) const;
173 :
174 : void CorrectTextSegment( TextSegment& aTextSegment,
175 : int nPara ) const;
176 :
177 : bool SetSelection( sal_Int32 nStartPara, sal_Int32 nStartIndex,
178 : sal_Int32 nEndPara, sal_Int32 nEndIndex );
179 : bool CopyText( sal_Int32 nStartPara, sal_Int32 nStartIndex,
180 : sal_Int32 nEndPara, sal_Int32 nEndIndex );
181 :
182 : Rectangle GetParagraphBoundingBox() const;
183 : bool RemoveLineBreakCount( sal_Int32& rIndex );
184 :
185 : private:
186 :
187 : EPosition ImpCalcInternal( sal_Int32 nFlatIndex, bool bExclusive ) const;
188 :
189 : // our frontend class (the one implementing the actual
190 : // interface). That's not necessarily the one containing the impl
191 : // pointer
192 : uno::Reference< XAccessible > mxThis;
193 :
194 : // implements our functionality, we're just an adapter (guarded by solar mutex)
195 : mutable AccessibleEditableTextPara* mpTextParagraph;
196 :
197 : uno::Reference< XAccessible > mxParagraph;
198 :
199 : // a wrapper for the text forwarders (guarded by solar mutex)
200 : mutable SvxEditSourceAdapter maEditSource;
201 :
202 : // guard for maOffset
203 : mutable ::osl::Mutex maMutex;
204 :
205 : /// our current offset to the containing shape/cell (guarded by maMutex)
206 : Point maOffset;
207 :
208 : };
209 :
210 :
211 :
212 : // AccessibleStaticTextBase_Impl implementation
213 :
214 :
215 :
216 10 : AccessibleStaticTextBase_Impl::AccessibleStaticTextBase_Impl() :
217 : mxThis( NULL ),
218 10 : mpTextParagraph( new AccessibleEditableTextPara(NULL) ),
219 : mxParagraph( mpTextParagraph ),
220 : maEditSource(),
221 : maMutex(),
222 20 : maOffset(0,0)
223 : {
224 :
225 : // TODO: this is still somewhat of a hack, all the more since
226 : // now the maTextParagraph has an empty parent reference set
227 10 : }
228 :
229 10 : AccessibleStaticTextBase_Impl::~AccessibleStaticTextBase_Impl()
230 : {
231 10 : }
232 :
233 10 : void AccessibleStaticTextBase_Impl::SetEditSource( ::std::unique_ptr< SvxEditSource > && pEditSource )
234 : {
235 :
236 10 : maEditSource.SetEditSource( std::move(pEditSource) );
237 10 : if( mpTextParagraph )
238 10 : mpTextParagraph->SetEditSource( &maEditSource );
239 10 : }
240 :
241 20 : void AccessibleStaticTextBase_Impl::SetOffset( const Point& rPoint )
242 : {
243 :
244 : // guard against non-atomic access to maOffset data structure
245 : {
246 20 : ::osl::MutexGuard aGuard( maMutex );
247 20 : maOffset = rPoint;
248 : }
249 :
250 20 : if( mpTextParagraph )
251 20 : mpTextParagraph->SetEEOffset( rPoint );
252 :
253 : // in all cases, check visibility afterwards.
254 20 : UpdateChildren();
255 20 : }
256 :
257 20 : void AccessibleStaticTextBase_Impl::UpdateChildren()
258 : {
259 :
260 : // currently no children
261 20 : }
262 :
263 10 : void AccessibleStaticTextBase_Impl::Dispose()
264 : {
265 :
266 : // we're the owner of the paragraph, so destroy it, too
267 10 : if( mpTextParagraph )
268 10 : mpTextParagraph->Dispose();
269 :
270 : // drop references
271 10 : mxParagraph = NULL;
272 10 : mxThis = NULL;
273 10 : mpTextParagraph = NULL;
274 10 : }
275 :
276 : #ifdef DBG_UTIL
277 : void AccessibleStaticTextBase_Impl::CheckInvariants() const
278 : {
279 : // TODO
280 : }
281 : #endif
282 :
283 0 : AccessibleEditableTextPara& AccessibleStaticTextBase_Impl::GetParagraph( sal_Int32 nPara ) const
284 : {
285 :
286 0 : if( !mpTextParagraph )
287 0 : throw lang::DisposedException ("object has been already disposed", mxThis );
288 :
289 : // TODO: Have a different method on AccessibleEditableTextPara
290 : // that does not care about state changes
291 0 : mpTextParagraph->SetParagraphIndex( nPara );
292 :
293 0 : return *mpTextParagraph;
294 : }
295 :
296 0 : sal_Int32 AccessibleStaticTextBase_Impl::GetParagraphCount() const
297 : {
298 :
299 0 : if( !mpTextParagraph )
300 0 : return 0;
301 : else
302 0 : return mpTextParagraph->GetTextForwarder().GetParagraphCount();
303 : }
304 :
305 0 : sal_Int32 AccessibleStaticTextBase_Impl::Internal2Index( EPosition nEEIndex ) const
306 : {
307 : // XXX checks for overflow and returns maximum if so
308 0 : sal_Int32 aRes(0);
309 0 : for(sal_Int32 i=0; i<nEEIndex.nPara; ++i)
310 : {
311 0 : sal_Int32 nCount = GetParagraph(i).getCharacterCount();
312 0 : if (SAL_MAX_INT32 - aRes > nCount)
313 0 : return SAL_MAX_INT32;
314 0 : aRes += nCount;
315 : }
316 :
317 0 : if (SAL_MAX_INT32 - aRes > nEEIndex.nIndex)
318 0 : return SAL_MAX_INT32;
319 0 : return aRes + nEEIndex.nIndex;
320 : }
321 :
322 0 : void AccessibleStaticTextBase_Impl::CorrectTextSegment( TextSegment& aTextSegment,
323 : int nPara ) const
324 : {
325 : // Keep 'invalid' values at the TextSegment
326 0 : if( aTextSegment.SegmentStart != -1 &&
327 0 : aTextSegment.SegmentEnd != -1 )
328 : {
329 : // #112814# Correct TextSegment by paragraph offset
330 0 : sal_Int32 nOffset(0);
331 : int i;
332 0 : for(i=0; i<nPara; ++i)
333 0 : nOffset += GetParagraph(i).getCharacterCount();
334 :
335 0 : aTextSegment.SegmentStart += nOffset;
336 0 : aTextSegment.SegmentEnd += nOffset;
337 : }
338 0 : }
339 :
340 0 : EPosition AccessibleStaticTextBase_Impl::ImpCalcInternal( sal_Int32 nFlatIndex, bool bExclusive ) const
341 : {
342 :
343 0 : if( nFlatIndex < 0 )
344 : throw lang::IndexOutOfBoundsException("AccessibleStaticTextBase_Impl::Index2Internal: character index out of bounds",
345 0 : mxThis);
346 : // gratuitously accepting larger indices here, AccessibleEditableTextPara will throw eventually
347 :
348 : sal_Int32 nCurrPara, nCurrIndex, nParas, nCurrCount;
349 0 : for( nCurrPara=0, nParas=GetParagraphCount(), nCurrCount=0, nCurrIndex=0; nCurrPara<nParas; ++nCurrPara )
350 : {
351 0 : nCurrCount = GetParagraph( nCurrPara ).getCharacterCount();
352 0 : nCurrIndex += nCurrCount;
353 0 : if( nCurrIndex >= nFlatIndex )
354 : {
355 : // check overflow
356 : DBG_ASSERT(nCurrPara >= 0 && nCurrPara <= SAL_MAX_INT32 &&
357 : nFlatIndex - nCurrIndex + nCurrCount >= 0 && nFlatIndex - nCurrIndex + nCurrCount <= USHRT_MAX ,
358 : "AccessibleStaticTextBase_Impl::Index2Internal: index value overflow");
359 :
360 0 : return EPosition(nCurrPara, nFlatIndex - nCurrIndex + nCurrCount);
361 : }
362 : }
363 :
364 : // #102170# Allow one-past the end for ranges
365 0 : if( bExclusive && nCurrIndex == nFlatIndex )
366 : {
367 : // check overflow
368 : DBG_ASSERT(nCurrPara > 0 && nCurrPara <= SAL_MAX_INT32 &&
369 : nFlatIndex - nCurrIndex + nCurrCount >= 0 && nFlatIndex - nCurrIndex + nCurrCount <= USHRT_MAX ,
370 : "AccessibleStaticTextBase_Impl::Index2Internal: index value overflow");
371 :
372 0 : return EPosition(nCurrPara-1, nFlatIndex - nCurrIndex + nCurrCount);
373 : }
374 :
375 : // not found? Out of bounds
376 : throw lang::IndexOutOfBoundsException("AccessibleStaticTextBase_Impl::Index2Internal: character index out of bounds",
377 0 : mxThis);
378 : }
379 :
380 0 : bool AccessibleStaticTextBase_Impl::SetSelection( sal_Int32 nStartPara, sal_Int32 nStartIndex,
381 : sal_Int32 nEndPara, sal_Int32 nEndIndex )
382 : {
383 :
384 0 : if( !mpTextParagraph )
385 0 : return false;
386 :
387 : try
388 : {
389 0 : SvxEditViewForwarder& rCacheVF = mpTextParagraph->GetEditViewForwarder( true );
390 0 : return rCacheVF.SetSelection( MakeSelection(nStartPara, nStartIndex, nEndPara, nEndIndex) );
391 : }
392 0 : catch( const uno::RuntimeException& )
393 : {
394 0 : return false;
395 : }
396 : }
397 :
398 0 : bool AccessibleStaticTextBase_Impl::CopyText( sal_Int32 nStartPara, sal_Int32 nStartIndex,
399 : sal_Int32 nEndPara, sal_Int32 nEndIndex )
400 : {
401 :
402 0 : if( !mpTextParagraph )
403 0 : return false;
404 :
405 : try
406 : {
407 0 : SvxEditViewForwarder& rCacheVF = mpTextParagraph->GetEditViewForwarder( true );
408 0 : mpTextParagraph->GetTextForwarder(); // MUST be after GetEditViewForwarder(), see method docs
409 : bool aRetVal;
410 :
411 : // save current selection
412 0 : ESelection aOldSelection;
413 :
414 0 : rCacheVF.GetSelection( aOldSelection );
415 0 : rCacheVF.SetSelection( MakeSelection(nStartPara, nStartIndex, nEndPara, nEndIndex) );
416 0 : aRetVal = rCacheVF.Copy();
417 0 : rCacheVF.SetSelection( aOldSelection ); // restore
418 :
419 0 : return aRetVal;
420 : }
421 0 : catch( const uno::RuntimeException& )
422 : {
423 0 : return false;
424 : }
425 : }
426 :
427 0 : Rectangle AccessibleStaticTextBase_Impl::GetParagraphBoundingBox() const
428 : {
429 0 : Rectangle aRect;
430 0 : if( mpTextParagraph )
431 : {
432 0 : awt::Rectangle aAwtRect = mpTextParagraph->getBounds();
433 0 : aRect = Rectangle( Point( aAwtRect.X, aAwtRect.Y ), Size( aAwtRect.Width, aAwtRect.Height ) );
434 : }
435 : else
436 : {
437 0 : aRect.SetEmpty();
438 : }
439 0 : return aRect;
440 : }
441 : //the input argument is the index(including "\n" ) in the string.
442 : //the function will calculate the actual index(not including "\n") in the string.
443 : //and return true if the index is just at a "\n"
444 0 : bool AccessibleStaticTextBase_Impl::RemoveLineBreakCount( sal_Int32& rIndex )
445 : {
446 : // get the total char number inside the cell.
447 : sal_Int32 i, nCount, nParas;
448 0 : for( i=0, nCount=0, nParas=GetParagraphCount(); i<nParas; ++i )
449 0 : nCount += GetParagraph(i).getCharacterCount();
450 0 : nCount = nCount + (nParas-1);
451 0 : if( nCount == 0 && rIndex == 0) return false;
452 :
453 :
454 : sal_Int32 nCurrPara, nCurrCount;
455 0 : sal_Int32 nLineBreakPos = 0, nLineBreakCount = 0;
456 0 : sal_Int32 nParaCount = GetParagraphCount();
457 0 : for ( nCurrCount = 0, nCurrPara = 0; nCurrPara < nParaCount; nCurrPara++ )
458 : {
459 0 : nCurrCount += GetParagraph( nCurrPara ).getCharacterCount();
460 0 : nLineBreakPos = nCurrCount++;
461 0 : if ( rIndex == nLineBreakPos )
462 : {
463 0 : rIndex -= (++nLineBreakCount);//(++nLineBreakCount);
464 0 : if ( rIndex < 0)
465 : {
466 0 : rIndex = 0;
467 : }
468 : //if the index is at the last position of the last paragraph
469 : //there is no "\n" , so we should increase rIndex by 1 and return false.
470 0 : if ( (nCurrPara+1) == nParaCount )
471 : {
472 0 : rIndex++;
473 0 : return false;
474 : }
475 : else
476 : {
477 0 : return true;
478 : }
479 : }
480 0 : else if ( rIndex < nLineBreakPos )
481 : {
482 0 : rIndex -= nLineBreakCount;
483 0 : return false;
484 : }
485 : else
486 : {
487 0 : nLineBreakCount++;
488 : }
489 : }
490 0 : return false;
491 : }
492 :
493 :
494 : // AccessibleStaticTextBase implementation
495 :
496 10 : AccessibleStaticTextBase::AccessibleStaticTextBase( ::std::unique_ptr< SvxEditSource > && pEditSource ) :
497 10 : mpImpl( new AccessibleStaticTextBase_Impl() )
498 : {
499 10 : SolarMutexGuard aGuard;
500 :
501 10 : SetEditSource( std::move(pEditSource) );
502 10 : }
503 :
504 10 : AccessibleStaticTextBase::~AccessibleStaticTextBase()
505 : {
506 10 : }
507 :
508 0 : const SvxEditSource& AccessibleStaticTextBase::GetEditSource() const
509 : {
510 : #ifdef DBG_UTIL
511 : mpImpl->CheckInvariants();
512 :
513 : const SvxEditSource& aEditSource = mpImpl->GetEditSource();
514 :
515 : mpImpl->CheckInvariants();
516 :
517 : return aEditSource;
518 : #else
519 0 : return mpImpl->GetEditSource();
520 : #endif
521 : }
522 :
523 10 : void AccessibleStaticTextBase::SetEditSource( ::std::unique_ptr< SvxEditSource > && pEditSource )
524 : {
525 : #ifdef DBG_UTIL
526 : // precondition: solar mutex locked
527 : DBG_TESTSOLARMUTEX();
528 :
529 : mpImpl->CheckInvariants();
530 :
531 : mpImpl->SetEditSource( std::move(pEditSource) );
532 :
533 : mpImpl->CheckInvariants();
534 : #else
535 10 : mpImpl->SetEditSource( std::move(pEditSource) );
536 : #endif
537 10 : }
538 :
539 10 : void AccessibleStaticTextBase::SetEventSource( const uno::Reference< XAccessible >& rInterface )
540 : {
541 : #ifdef DBG_UTIL
542 : mpImpl->CheckInvariants();
543 : #endif
544 :
545 10 : mpImpl->SetEventSource( rInterface );
546 :
547 : #ifdef DBG_UTIL
548 : mpImpl->CheckInvariants();
549 : #endif
550 10 : }
551 :
552 0 : uno::Reference< XAccessible > AccessibleStaticTextBase::GetEventSource() const
553 : {
554 : #ifdef DBG_UTIL
555 : mpImpl->CheckInvariants();
556 :
557 : uno::Reference< XAccessible > xRet( mpImpl->GetEventSource() );
558 :
559 : mpImpl->CheckInvariants();
560 :
561 : return xRet;
562 : #else
563 0 : return mpImpl->GetEventSource();
564 : #endif
565 : }
566 :
567 20 : void AccessibleStaticTextBase::SetOffset( const Point& rPoint )
568 : {
569 : #ifdef DBG_UTIL
570 : // precondition: solar mutex locked
571 : DBG_TESTSOLARMUTEX();
572 :
573 : mpImpl->CheckInvariants();
574 :
575 : mpImpl->SetOffset( rPoint );
576 :
577 : mpImpl->CheckInvariants();
578 : #else
579 20 : mpImpl->SetOffset( rPoint );
580 : #endif
581 20 : }
582 :
583 0 : Point AccessibleStaticTextBase::GetOffset() const
584 : {
585 : #ifdef DBG_UTIL
586 : mpImpl->CheckInvariants();
587 :
588 : Point aPoint( mpImpl->GetOffset() );
589 :
590 : mpImpl->CheckInvariants();
591 :
592 : return aPoint;
593 : #else
594 0 : return mpImpl->GetOffset();
595 : #endif
596 : }
597 :
598 0 : void AccessibleStaticTextBase::UpdateChildren()
599 : {
600 : #ifdef DBG_UTIL
601 : // precondition: solar mutex locked
602 : DBG_TESTSOLARMUTEX();
603 :
604 : mpImpl->CheckInvariants();
605 :
606 : mpImpl->UpdateChildren();
607 :
608 : mpImpl->CheckInvariants();
609 : #else
610 0 : mpImpl->UpdateChildren();
611 : #endif
612 0 : }
613 :
614 10 : void AccessibleStaticTextBase::Dispose()
615 : {
616 : #ifdef DBG_UTIL
617 : mpImpl->CheckInvariants();
618 : #endif
619 :
620 10 : mpImpl->Dispose();
621 :
622 : #ifdef DBG_UTIL
623 : mpImpl->CheckInvariants();
624 : #endif
625 10 : }
626 :
627 : // XAccessibleContext
628 16 : sal_Int32 SAL_CALL AccessibleStaticTextBase::getAccessibleChildCount() throw (uno::RuntimeException, std::exception)
629 : {
630 : // no children at all
631 16 : return 0;
632 : }
633 :
634 0 : uno::Reference< XAccessible > SAL_CALL AccessibleStaticTextBase::getAccessibleChild( sal_Int32 /*i*/ ) throw (lang::IndexOutOfBoundsException, uno::RuntimeException, std::exception)
635 : {
636 : // no children at all
637 0 : return uno::Reference< XAccessible >();
638 : }
639 :
640 0 : uno::Reference< XAccessible > SAL_CALL AccessibleStaticTextBase::getAccessibleAtPoint( const awt::Point& /*_aPoint*/ ) throw (uno::RuntimeException, std::exception)
641 : {
642 : // no children at all
643 0 : return uno::Reference< XAccessible >();
644 : }
645 :
646 : // XAccessibleText
647 0 : sal_Int32 SAL_CALL AccessibleStaticTextBase::getCaretPosition() throw (uno::RuntimeException, std::exception)
648 : {
649 0 : SolarMutexGuard aGuard;
650 :
651 : sal_Int32 i, nPos, nParas;
652 0 : for( i=0, nPos=-1, nParas=mpImpl->GetParagraphCount(); i<nParas; ++i )
653 : {
654 0 : if( (nPos=mpImpl->GetParagraph(i).getCaretPosition()) != -1 )
655 0 : return nPos;
656 : }
657 :
658 0 : return nPos;
659 : }
660 :
661 0 : sal_Bool SAL_CALL AccessibleStaticTextBase::setCaretPosition( sal_Int32 nIndex ) throw (lang::IndexOutOfBoundsException, uno::RuntimeException, std::exception)
662 : {
663 0 : return setSelection(nIndex, nIndex);
664 : }
665 :
666 0 : sal_Unicode SAL_CALL AccessibleStaticTextBase::getCharacter( sal_Int32 nIndex ) throw (lang::IndexOutOfBoundsException, uno::RuntimeException, std::exception)
667 : {
668 0 : SolarMutexGuard aGuard;
669 :
670 0 : EPosition aPos( mpImpl->Index2Internal(nIndex) );
671 :
672 0 : return mpImpl->GetParagraph( aPos.nPara ).getCharacter( aPos.nIndex );
673 : }
674 :
675 0 : uno::Sequence< beans::PropertyValue > SAL_CALL AccessibleStaticTextBase::getCharacterAttributes( sal_Int32 nIndex, const ::com::sun::star::uno::Sequence< OUString >& aRequestedAttributes ) throw (lang::IndexOutOfBoundsException, uno::RuntimeException, std::exception)
676 : {
677 0 : SolarMutexGuard aGuard;
678 :
679 : //get the actual index without "\n"
680 0 : mpImpl->RemoveLineBreakCount( nIndex );
681 :
682 0 : EPosition aPos( mpImpl->Index2Internal(nIndex) );
683 :
684 0 : return mpImpl->GetParagraph( aPos.nPara ).getCharacterAttributes( aPos.nIndex, aRequestedAttributes );
685 : }
686 :
687 0 : awt::Rectangle SAL_CALL AccessibleStaticTextBase::getCharacterBounds( sal_Int32 nIndex ) throw (lang::IndexOutOfBoundsException, uno::RuntimeException, std::exception)
688 : {
689 0 : SolarMutexGuard aGuard;
690 :
691 : // #108900# Allow ranges for nIndex, as one-past-the-end
692 : // values are now legal, too.
693 0 : EPosition aPos( mpImpl->Range2Internal(nIndex) );
694 :
695 : // #i70916# Text in spread sheet cells return the wrong extents
696 0 : AccessibleEditableTextPara& rPara = mpImpl->GetParagraph( aPos.nPara );
697 0 : awt::Rectangle aParaBounds( rPara.getBounds() );
698 0 : awt::Rectangle aBounds( rPara.getCharacterBounds( aPos.nIndex ) );
699 0 : aBounds.X += aParaBounds.X;
700 0 : aBounds.Y += aParaBounds.Y;
701 :
702 0 : return aBounds;
703 : }
704 :
705 0 : sal_Int32 SAL_CALL AccessibleStaticTextBase::getCharacterCount() throw (uno::RuntimeException, std::exception)
706 : {
707 0 : SolarMutexGuard aGuard;
708 :
709 : sal_Int32 i, nCount, nParas;
710 0 : for( i=0, nCount=0, nParas=mpImpl->GetParagraphCount(); i<nParas; ++i )
711 0 : nCount += mpImpl->GetParagraph(i).getCharacterCount();
712 : //count on the number of "\n" which equals number of paragraphs decrease 1.
713 0 : nCount = nCount + (nParas-1);
714 0 : return nCount;
715 : }
716 :
717 0 : sal_Int32 SAL_CALL AccessibleStaticTextBase::getIndexAtPoint( const awt::Point& rPoint ) throw (uno::RuntimeException, std::exception)
718 : {
719 0 : SolarMutexGuard aGuard;
720 :
721 0 : const sal_Int32 nParas( mpImpl->GetParagraphCount() );
722 : sal_Int32 nIndex;
723 : int i;
724 0 : for( i=0; i<nParas; ++i )
725 : {
726 : // TODO: maybe exploit the fact that paragraphs are
727 : // ordered vertically for early exit
728 :
729 : // #i70916# Text in spread sheet cells return the wrong extents
730 0 : AccessibleEditableTextPara& rPara = mpImpl->GetParagraph( i );
731 0 : awt::Rectangle aParaBounds( rPara.getBounds() );
732 0 : awt::Point aPoint( rPoint );
733 0 : aPoint.X -= aParaBounds.X;
734 0 : aPoint.Y -= aParaBounds.Y;
735 :
736 : // #112814# Use correct index offset
737 0 : if ( ( nIndex = rPara.getIndexAtPoint( aPoint ) ) != -1 )
738 0 : return mpImpl->Internal2Index(EPosition(i, nIndex));
739 : }
740 :
741 0 : return -1;
742 : }
743 :
744 0 : OUString SAL_CALL AccessibleStaticTextBase::getSelectedText() throw (uno::RuntimeException, std::exception)
745 : {
746 0 : SolarMutexGuard aGuard;
747 :
748 0 : sal_Int32 nStart( getSelectionStart() );
749 0 : sal_Int32 nEnd( getSelectionEnd() );
750 :
751 : // #104481# Return the empty string for 'no selection'
752 0 : if( nStart < 0 || nEnd < 0 )
753 0 : return OUString();
754 :
755 0 : return getTextRange( nStart, nEnd );
756 : }
757 :
758 0 : sal_Int32 SAL_CALL AccessibleStaticTextBase::getSelectionStart() throw (uno::RuntimeException, std::exception)
759 : {
760 0 : SolarMutexGuard aGuard;
761 :
762 : sal_Int32 i, nPos, nParas;
763 0 : for( i=0, nPos=-1, nParas=mpImpl->GetParagraphCount(); i<nParas; ++i )
764 : {
765 0 : if( (nPos=mpImpl->GetParagraph(i).getSelectionStart()) != -1 )
766 0 : return nPos;
767 : }
768 :
769 0 : return nPos;
770 : }
771 :
772 0 : sal_Int32 SAL_CALL AccessibleStaticTextBase::getSelectionEnd() throw (uno::RuntimeException, std::exception)
773 : {
774 0 : SolarMutexGuard aGuard;
775 :
776 : sal_Int32 i, nPos, nParas;
777 0 : for( i=0, nPos=-1, nParas=mpImpl->GetParagraphCount(); i<nParas; ++i )
778 : {
779 0 : if( (nPos=mpImpl->GetParagraph(i).getSelectionEnd()) != -1 )
780 0 : return nPos;
781 : }
782 :
783 0 : return nPos;
784 : }
785 :
786 0 : sal_Bool SAL_CALL AccessibleStaticTextBase::setSelection( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (lang::IndexOutOfBoundsException, uno::RuntimeException, std::exception)
787 : {
788 0 : SolarMutexGuard aGuard;
789 :
790 0 : EPosition aStartIndex( mpImpl->Range2Internal(nStartIndex) );
791 0 : EPosition aEndIndex( mpImpl->Range2Internal(nEndIndex) );
792 :
793 : return mpImpl->SetSelection( aStartIndex.nPara, aStartIndex.nIndex,
794 0 : aEndIndex.nPara, aEndIndex.nIndex );
795 : }
796 :
797 0 : OUString SAL_CALL AccessibleStaticTextBase::getText() throw (uno::RuntimeException, std::exception)
798 : {
799 0 : SolarMutexGuard aGuard;
800 :
801 : sal_Int32 i, nParas;
802 0 : OUString aRes;
803 0 : for( i=0, nParas=mpImpl->GetParagraphCount(); i<nParas; ++i )
804 0 : aRes += mpImpl->GetParagraph(i).getText();
805 :
806 0 : return aRes;
807 : }
808 :
809 0 : OUString SAL_CALL AccessibleStaticTextBase::getTextRange( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (lang::IndexOutOfBoundsException, uno::RuntimeException, std::exception)
810 : {
811 0 : SolarMutexGuard aGuard;
812 :
813 0 : if( nStartIndex > nEndIndex )
814 0 : ::std::swap(nStartIndex, nEndIndex);
815 : //if startindex equals endindex we will get nothing. So return an empty string directly.
816 0 : if ( nStartIndex == nEndIndex )
817 : {
818 0 : return OUString();
819 : }
820 0 : bool bStart = mpImpl->RemoveLineBreakCount( nStartIndex );
821 : //if the start index is just at a "\n", we need to begin from the next char
822 0 : if ( bStart )
823 : {
824 0 : nStartIndex++;
825 : }
826 : //we need to find out whether the previous position of the current endindex is at "\n" or not
827 : //if yes we need to mark it and add "\n" at the end of the result
828 0 : sal_Int32 nTemp = nEndIndex - 1;
829 0 : bool bEnd = mpImpl->RemoveLineBreakCount( nTemp );
830 0 : bool bTemp = mpImpl->RemoveLineBreakCount( nEndIndex );
831 : //if the below condition is true it indicates an empty paragraph with just a "\n"
832 : //so we need to set one "\n" flag to avoid duplication.
833 0 : if ( bStart && bEnd && ( nStartIndex == nEndIndex) )
834 : {
835 0 : bEnd = false;
836 : }
837 : //if the current endindex is at a "\n", we need to increase endindex by 1 to make sure
838 : //the char before "\n" is included. Because string returned by this function will not include
839 : //the char at the endindex.
840 0 : if ( bTemp )
841 : {
842 0 : nEndIndex++;
843 : }
844 0 : OUString aRes;
845 0 : EPosition aStartIndex( mpImpl->Range2Internal(nStartIndex) );
846 0 : EPosition aEndIndex( mpImpl->Range2Internal(nEndIndex) );
847 :
848 : // #102170# Special case: start and end paragraph are identical
849 0 : if( aStartIndex.nPara == aEndIndex.nPara )
850 : {
851 : //we don't return the string directly now for that we have to do some further process for "\n"
852 0 : aRes = mpImpl->GetParagraph( aStartIndex.nPara ).getTextRange( aStartIndex.nIndex, aEndIndex.nIndex );
853 : }
854 : else
855 : {
856 0 : sal_Int32 i( aStartIndex.nPara );
857 0 : aRes = mpImpl->GetParagraph(i).getTextRange( aStartIndex.nIndex,
858 0 : mpImpl->GetParagraph(i).getCharacterCount()/*-1*/);
859 0 : ++i;
860 :
861 : // paragraphs inbetween are fully included
862 0 : for( ; i<aEndIndex.nPara; ++i )
863 : {
864 0 : aRes += OUString(cNewLine);
865 0 : aRes += mpImpl->GetParagraph(i).getText();
866 : }
867 :
868 0 : if( i<=aEndIndex.nPara )
869 : {
870 : //if the below condition is mathed it means the endindex is at mid of the last paragraph
871 : //we need to add a "\n" before we add the last part of the string.
872 0 : if ( !bEnd && aEndIndex.nIndex )
873 : {
874 0 : aRes += OUString(cNewLine);
875 : }
876 0 : aRes += mpImpl->GetParagraph(i).getTextRange( 0, aEndIndex.nIndex );
877 : }
878 : }
879 : //According the the flag we marked before, we have to add "\n" at the beginning
880 : //or at the end of the result string.
881 0 : if ( bStart )
882 : {
883 0 : aRes = OUString(cNewLine) + aRes;
884 : }
885 0 : if ( bEnd )
886 : {
887 0 : aRes += OUString(cNewLine);
888 : }
889 0 : return aRes;
890 : }
891 :
892 0 : ::com::sun::star::accessibility::TextSegment SAL_CALL AccessibleStaticTextBase::getTextAtIndex( sal_Int32 nIndex, sal_Int16 aTextType ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException, std::exception)
893 : {
894 0 : SolarMutexGuard aGuard;
895 :
896 0 : bool bLineBreak = mpImpl->RemoveLineBreakCount( nIndex );
897 0 : EPosition aPos( mpImpl->Range2Internal(nIndex) );
898 :
899 0 : ::com::sun::star::accessibility::TextSegment aResult;
900 :
901 0 : if( AccessibleTextType::PARAGRAPH == aTextType )
902 : {
903 : // #106393# Special casing one behind last paragraph is
904 : // not necessary, since then, we return the content and
905 : // boundary of that last paragraph. Range2Internal is
906 : // tolerant against that, and returns the last paragraph
907 : // in aPos.nPara.
908 :
909 : // retrieve full text of the paragraph
910 0 : aResult.SegmentText = mpImpl->GetParagraph( aPos.nPara ).getText();
911 :
912 : // #112814# Adapt the start index with the paragraph offset
913 0 : aResult.SegmentStart = mpImpl->Internal2Index( EPosition( aPos.nPara, 0 ) );
914 0 : aResult.SegmentEnd = aResult.SegmentStart + aResult.SegmentText.getLength();
915 : }
916 0 : else if ( AccessibleTextType::ATTRIBUTE_RUN == aTextType )
917 : {
918 0 : SvxAccessibleTextAdapter& rTextForwarder = mpImpl->GetParagraph( aPos.nIndex ).GetTextForwarder();
919 : sal_Int32 nStartIndex, nEndIndex;
920 0 : if ( rTextForwarder.GetAttributeRun( nStartIndex, nEndIndex, aPos.nPara, aPos.nIndex, true ) )
921 : {
922 0 : aResult.SegmentText = getTextRange( nStartIndex, nEndIndex );
923 0 : aResult.SegmentStart = nStartIndex;
924 0 : aResult.SegmentEnd = nEndIndex;
925 : }
926 : }
927 : else
928 : {
929 : // No special handling required, forward to wrapped class
930 0 : aResult = mpImpl->GetParagraph( aPos.nPara ).getTextAtIndex( aPos.nIndex, aTextType );
931 :
932 : // #112814# Adapt the start index with the paragraph offset
933 0 : mpImpl->CorrectTextSegment( aResult, aPos.nPara );
934 0 : if ( bLineBreak )
935 : {
936 0 : aResult.SegmentText = OUString(cNewLine);
937 : }
938 : }
939 :
940 0 : return aResult;
941 : }
942 :
943 0 : ::com::sun::star::accessibility::TextSegment SAL_CALL AccessibleStaticTextBase::getTextBeforeIndex( sal_Int32 nIndex, sal_Int16 aTextType ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException, std::exception)
944 : {
945 0 : SolarMutexGuard aGuard;
946 :
947 0 : sal_Int32 nOldIdx = nIndex;
948 0 : bool bLineBreak = mpImpl->RemoveLineBreakCount( nIndex );
949 0 : EPosition aPos( mpImpl->Range2Internal(nIndex) );
950 :
951 0 : ::com::sun::star::accessibility::TextSegment aResult;
952 :
953 0 : if( AccessibleTextType::PARAGRAPH == aTextType )
954 : {
955 0 : if( aPos.nIndex == mpImpl->GetParagraph( aPos.nPara ).getCharacterCount() )
956 : {
957 : // #103589# Special casing one behind the last paragraph
958 0 : aResult.SegmentText = mpImpl->GetParagraph( aPos.nPara ).getText();
959 :
960 : // #112814# Adapt the start index with the paragraph offset
961 0 : aResult.SegmentStart = mpImpl->Internal2Index( EPosition( aPos.nPara, 0 ) );
962 : }
963 0 : else if( aPos.nPara > 0 )
964 : {
965 0 : aResult.SegmentText = mpImpl->GetParagraph( aPos.nPara - 1 ).getText();
966 :
967 : // #112814# Adapt the start index with the paragraph offset
968 0 : aResult.SegmentStart = mpImpl->Internal2Index( EPosition( aPos.nPara - 1, 0 ) );
969 : }
970 :
971 0 : aResult.SegmentEnd = aResult.SegmentStart + aResult.SegmentText.getLength();
972 : }
973 : else
974 : {
975 : // No special handling required, forward to wrapped class
976 0 : aResult = mpImpl->GetParagraph( aPos.nPara ).getTextBeforeIndex( aPos.nIndex, aTextType );
977 :
978 : // #112814# Adapt the start index with the paragraph offset
979 0 : mpImpl->CorrectTextSegment( aResult, aPos.nPara );
980 0 : if ( bLineBreak && (nOldIdx-1) >= 0)
981 : {
982 0 : aResult = getTextAtIndex( nOldIdx-1, aTextType );
983 : }
984 : }
985 :
986 0 : return aResult;
987 : }
988 :
989 0 : ::com::sun::star::accessibility::TextSegment SAL_CALL AccessibleStaticTextBase::getTextBehindIndex( sal_Int32 nIndex, sal_Int16 aTextType ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException, std::exception)
990 : {
991 0 : SolarMutexGuard aGuard;
992 :
993 0 : sal_Int32 nTemp = nIndex+1;
994 0 : bool bLineBreak = mpImpl->RemoveLineBreakCount( nTemp );
995 0 : mpImpl->RemoveLineBreakCount( nIndex );
996 0 : EPosition aPos( mpImpl->Range2Internal(nIndex) );
997 :
998 0 : ::com::sun::star::accessibility::TextSegment aResult;
999 :
1000 0 : if( AccessibleTextType::PARAGRAPH == aTextType )
1001 : {
1002 : // Special casing one behind the last paragraph is not
1003 : // necessary, this case is invalid here for
1004 : // getTextBehindIndex
1005 0 : if( aPos.nPara + 1 < mpImpl->GetParagraphCount() )
1006 : {
1007 0 : aResult.SegmentText = mpImpl->GetParagraph( aPos.nPara + 1 ).getText();
1008 :
1009 : // #112814# Adapt the start index with the paragraph offset
1010 0 : aResult.SegmentStart = mpImpl->Internal2Index( EPosition( aPos.nPara + 1, 0 ) );
1011 0 : aResult.SegmentEnd = aResult.SegmentStart + aResult.SegmentText.getLength();
1012 : }
1013 : }
1014 : else
1015 : {
1016 : // No special handling required, forward to wrapped class
1017 0 : aResult = mpImpl->GetParagraph( aPos.nPara ).getTextBehindIndex( aPos.nIndex, aTextType );
1018 :
1019 : // #112814# Adapt the start index with the paragraph offset
1020 0 : mpImpl->CorrectTextSegment( aResult, aPos.nPara );
1021 0 : if ( bLineBreak )
1022 : {
1023 0 : aResult.SegmentText = OUString(cNewLine) + aResult.SegmentText;
1024 : }
1025 : }
1026 :
1027 0 : return aResult;
1028 : }
1029 :
1030 0 : sal_Bool SAL_CALL AccessibleStaticTextBase::copyText( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (lang::IndexOutOfBoundsException, uno::RuntimeException, std::exception)
1031 : {
1032 0 : SolarMutexGuard aGuard;
1033 :
1034 0 : if( nStartIndex > nEndIndex )
1035 0 : ::std::swap(nStartIndex, nEndIndex);
1036 :
1037 0 : EPosition aStartIndex( mpImpl->Range2Internal(nStartIndex) );
1038 0 : EPosition aEndIndex( mpImpl->Range2Internal(nEndIndex) );
1039 :
1040 : return mpImpl->CopyText( aStartIndex.nPara, aStartIndex.nIndex,
1041 0 : aEndIndex.nPara, aEndIndex.nIndex );
1042 : }
1043 :
1044 : // XAccessibleTextAttributes
1045 0 : uno::Sequence< beans::PropertyValue > AccessibleStaticTextBase::getDefaultAttributes( const uno::Sequence< OUString >& RequestedAttributes ) throw (uno::RuntimeException, std::exception)
1046 : {
1047 : // get the intersection of the default attributes of all paragraphs
1048 :
1049 0 : SolarMutexGuard aGuard;
1050 :
1051 0 : PropertyValueVector aDefAttrVec( mpImpl->GetParagraph( 0 ).getDefaultAttributes( RequestedAttributes ) );
1052 :
1053 0 : const sal_Int32 nParaCount = mpImpl->GetParagraphCount();
1054 0 : for ( sal_Int32 nPara = 1; nPara < nParaCount; ++nPara )
1055 : {
1056 0 : uno::Sequence< beans::PropertyValue > aSeq = mpImpl->GetParagraph( nPara ).getDefaultAttributes( RequestedAttributes );
1057 0 : PropertyValueVector aIntersectionVec;
1058 :
1059 0 : PropertyValueVector::const_iterator aEnd = aDefAttrVec.end();
1060 0 : for ( PropertyValueVector::const_iterator aItr = aDefAttrVec.begin(); aItr != aEnd; ++aItr )
1061 : {
1062 0 : const beans::PropertyValue* pItr = aSeq.getConstArray();
1063 0 : const beans::PropertyValue* pEnd = pItr + aSeq.getLength();
1064 0 : const beans::PropertyValue* pFind = ::std::find_if( pItr, pEnd, ::std::bind2nd( PropertyValueEqualFunctor(), boost::cref( *aItr ) ) );
1065 0 : if ( pFind != pEnd )
1066 : {
1067 0 : aIntersectionVec.push_back( *pFind );
1068 : }
1069 : }
1070 :
1071 0 : aDefAttrVec.swap( aIntersectionVec );
1072 :
1073 0 : if ( aDefAttrVec.empty() )
1074 : {
1075 0 : break;
1076 : }
1077 0 : }
1078 :
1079 0 : return aDefAttrVec.getAsConstList();
1080 : }
1081 :
1082 0 : uno::Sequence< beans::PropertyValue > SAL_CALL AccessibleStaticTextBase::getRunAttributes( sal_Int32 nIndex, const uno::Sequence< OUString >& RequestedAttributes ) throw (lang::IndexOutOfBoundsException, uno::RuntimeException, std::exception)
1083 : {
1084 : // get those default attributes of the paragraph, which are not part
1085 : // of the intersection of all paragraphs and add them to the run attributes
1086 :
1087 0 : SolarMutexGuard aGuard;
1088 :
1089 0 : EPosition aPos( mpImpl->Index2Internal( nIndex ) );
1090 0 : AccessibleEditableTextPara& rPara = mpImpl->GetParagraph( aPos.nPara );
1091 0 : uno::Sequence< beans::PropertyValue > aDefAttrSeq = rPara.getDefaultAttributes( RequestedAttributes );
1092 0 : uno::Sequence< beans::PropertyValue > aRunAttrSeq = rPara.getRunAttributes( aPos.nIndex, RequestedAttributes );
1093 0 : uno::Sequence< beans::PropertyValue > aIntersectionSeq = getDefaultAttributes( RequestedAttributes );
1094 0 : PropertyValueVector aDiffVec;
1095 :
1096 0 : const beans::PropertyValue* pDefAttr = aDefAttrSeq.getConstArray();
1097 0 : const sal_Int32 nLength = aDefAttrSeq.getLength();
1098 0 : for ( sal_Int32 i = 0; i < nLength; ++i )
1099 : {
1100 0 : const beans::PropertyValue* pItr = aIntersectionSeq.getConstArray();
1101 0 : const beans::PropertyValue* pEnd = pItr + aIntersectionSeq.getLength();
1102 0 : const beans::PropertyValue* pFind = ::std::find_if( pItr, pEnd, ::std::bind2nd( PropertyValueEqualFunctor(), boost::cref( pDefAttr[i] ) ) );
1103 0 : if ( pFind == pEnd && pDefAttr[i].Handle != 0)
1104 : {
1105 0 : aDiffVec.push_back( pDefAttr[i] );
1106 : }
1107 : }
1108 :
1109 0 : return ::comphelper::concatSequences( aRunAttrSeq, aDiffVec.getAsConstList() );
1110 : }
1111 :
1112 0 : Rectangle AccessibleStaticTextBase::GetParagraphBoundingBox() const
1113 : {
1114 0 : return mpImpl->GetParagraphBoundingBox();
1115 : }
1116 :
1117 669 : } // end of namespace accessibility
1118 :
1119 :
1120 :
1121 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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