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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 "AccessibleCell.hxx"
21 : #include "scitems.hxx"
22 : #include <editeng/eeitem.hxx>
23 :
24 :
25 : #include "AccessibleText.hxx"
26 : #include "AccessibleDocument.hxx"
27 : #include "tabvwsh.hxx"
28 : #include "document.hxx"
29 : #include "attrib.hxx"
30 : #include "miscuno.hxx"
31 : #include "editsrc.hxx"
32 : #include "dociter.hxx"
33 : #include "cell.hxx"
34 : #include "markdata.hxx"
35 :
36 : #include <unotools/accessiblestatesethelper.hxx>
37 : #include <com/sun/star/accessibility/AccessibleRole.hpp>
38 : #include <com/sun/star/accessibility/AccessibleStateType.hpp>
39 : #include <com/sun/star/accessibility/AccessibleRelationType.hpp>
40 : #include <com/sun/star/accessibility/XAccessibleTable.hpp>
41 : #include <editeng/brshitem.hxx>
42 : #include <comphelper/sequence.hxx>
43 : #include <float.h>
44 : #include <vcl/svapp.hxx>
45 :
46 : using namespace ::com::sun::star;
47 : using namespace ::com::sun::star::accessibility;
48 :
49 : //===== internal ============================================================
50 :
51 0 : ScAccessibleCell::ScAccessibleCell(
52 : const uno::Reference<XAccessible>& rxParent,
53 : ScTabViewShell* pViewShell,
54 : ScAddress& rCellAddress,
55 : sal_Int32 nIndex,
56 : ScSplitPos eSplitPos,
57 : ScAccessibleDocument* pAccDoc)
58 : :
59 : ScAccessibleCellBase(rxParent, GetDocument(pViewShell), rCellAddress, nIndex),
60 : ::accessibility::AccessibleStaticTextBase(CreateEditSource(pViewShell, rCellAddress, eSplitPos)),
61 : mpViewShell(pViewShell),
62 : mpAccDoc(pAccDoc),
63 0 : meSplitPos(eSplitPos)
64 : {
65 0 : if (pViewShell)
66 0 : pViewShell->AddAccessibilityObject(*this);
67 0 : }
68 :
69 0 : ScAccessibleCell::~ScAccessibleCell()
70 : {
71 0 : if (!ScAccessibleContextBase::IsDefunc() && !rBHelper.bInDispose)
72 : {
73 : // increment refcount to prevent double call off dtor
74 0 : osl_atomic_increment( &m_refCount );
75 : // call dispose to inform object wich have a weak reference to this object
76 0 : dispose();
77 : }
78 0 : }
79 :
80 0 : void ScAccessibleCell::Init()
81 : {
82 0 : ScAccessibleCellBase::Init();
83 :
84 0 : SetEventSource(this);
85 0 : }
86 :
87 0 : void SAL_CALL ScAccessibleCell::disposing()
88 : {
89 0 : SolarMutexGuard aGuard;
90 : // dispose in AccessibleStaticTextBase
91 0 : Dispose();
92 :
93 0 : if (mpViewShell)
94 : {
95 0 : mpViewShell->RemoveAccessibilityObject(*this);
96 0 : mpViewShell = NULL;
97 : }
98 0 : mpAccDoc = NULL;
99 :
100 0 : ScAccessibleCellBase::disposing();
101 0 : }
102 :
103 : //===== XInterface =====================================================
104 :
105 0 : IMPLEMENT_FORWARD_XINTERFACE2( ScAccessibleCell, ScAccessibleCellBase, AccessibleStaticTextBase )
106 :
107 : //===== XTypeProvider ===================================================
108 :
109 0 : IMPLEMENT_FORWARD_XTYPEPROVIDER2( ScAccessibleCell, ScAccessibleCellBase, AccessibleStaticTextBase )
110 :
111 : //===== XAccessibleComponent ============================================
112 :
113 0 : uno::Reference< XAccessible > SAL_CALL ScAccessibleCell::getAccessibleAtPoint(
114 : const awt::Point& rPoint )
115 : throw (uno::RuntimeException)
116 : {
117 0 : return AccessibleStaticTextBase::getAccessibleAtPoint(rPoint);
118 : }
119 :
120 0 : void SAL_CALL ScAccessibleCell::grabFocus( )
121 : throw (uno::RuntimeException)
122 : {
123 0 : SolarMutexGuard aGuard;
124 0 : IsObjectValid();
125 0 : if (getAccessibleParent().is() && mpViewShell)
126 : {
127 0 : uno::Reference<XAccessibleComponent> xAccessibleComponent(getAccessibleParent()->getAccessibleContext(), uno::UNO_QUERY);
128 0 : if (xAccessibleComponent.is())
129 : {
130 0 : xAccessibleComponent->grabFocus();
131 0 : mpViewShell->SetCursor(maCellAddress.Col(), maCellAddress.Row());
132 0 : }
133 0 : }
134 0 : }
135 :
136 0 : Rectangle ScAccessibleCell::GetBoundingBoxOnScreen(void) const
137 : throw (uno::RuntimeException)
138 : {
139 0 : Rectangle aCellRect(GetBoundingBox());
140 0 : if (mpViewShell)
141 : {
142 0 : Window* pWindow = mpViewShell->GetWindowByPos(meSplitPos);
143 0 : if (pWindow)
144 : {
145 0 : Rectangle aRect = pWindow->GetWindowExtentsRelative(NULL);
146 0 : aCellRect.setX(aCellRect.getX() + aRect.getX());
147 0 : aCellRect.setY(aCellRect.getY() + aRect.getY());
148 : }
149 : }
150 0 : return aCellRect;
151 : }
152 :
153 0 : Rectangle ScAccessibleCell::GetBoundingBox(void) const
154 : throw (uno::RuntimeException)
155 : {
156 0 : Rectangle aCellRect;
157 0 : if (mpViewShell)
158 : {
159 : long nSizeX, nSizeY;
160 : mpViewShell->GetViewData()->GetMergeSizePixel(
161 0 : maCellAddress.Col(), maCellAddress.Row(), nSizeX, nSizeY);
162 0 : aCellRect.SetSize(Size(nSizeX, nSizeY));
163 0 : aCellRect.SetPos(mpViewShell->GetViewData()->GetScrPos(maCellAddress.Col(), maCellAddress.Row(), meSplitPos, sal_True));
164 :
165 0 : Window* pWindow = mpViewShell->GetWindowByPos(meSplitPos);
166 0 : if (pWindow)
167 : {
168 0 : Rectangle aRect(pWindow->GetWindowExtentsRelative(pWindow->GetAccessibleParentWindow()));
169 0 : aRect.Move(-aRect.Left(), -aRect.Top());
170 0 : aCellRect = aRect.Intersection(aCellRect);
171 : }
172 :
173 : /* #i19430# Gnopernicus reads text partly if it sticks out of the cell
174 : boundaries. This leads to wrong results in cases where the cell
175 : text is rotated, because rotation is not taken into account when
176 : calculating the visible part of the text. In these cases we will
177 : simply expand the cell size to the width of the unrotated text. */
178 0 : if (mpDoc)
179 : {
180 : const SfxInt32Item* pItem = static_cast< const SfxInt32Item* >(
181 0 : mpDoc->GetAttr( maCellAddress.Col(), maCellAddress.Row(), maCellAddress.Tab(), ATTR_ROTATE_VALUE ) );
182 0 : if( pItem && (pItem->GetValue() != 0) )
183 : {
184 0 : Rectangle aParaRect = GetParagraphBoundingBox();
185 0 : if( !aParaRect.IsEmpty() && (aCellRect.GetWidth() < aParaRect.GetWidth()) )
186 0 : aCellRect.SetSize( Size( aParaRect.GetWidth(), aCellRect.GetHeight() ) );
187 : }
188 : }
189 : }
190 0 : if (aCellRect.IsEmpty())
191 0 : aCellRect.SetPos(Point(-1, -1));
192 0 : return aCellRect;
193 : }
194 :
195 : //===== XAccessibleContext ==============================================
196 :
197 : sal_Int32 SAL_CALL
198 0 : ScAccessibleCell::getAccessibleChildCount(void)
199 : throw (uno::RuntimeException)
200 : {
201 0 : return AccessibleStaticTextBase::getAccessibleChildCount();
202 : }
203 :
204 : uno::Reference< XAccessible > SAL_CALL
205 0 : ScAccessibleCell::getAccessibleChild(sal_Int32 nIndex)
206 : throw (uno::RuntimeException,
207 : lang::IndexOutOfBoundsException)
208 : {
209 0 : return AccessibleStaticTextBase::getAccessibleChild(nIndex);
210 : }
211 :
212 : uno::Reference<XAccessibleStateSet> SAL_CALL
213 0 : ScAccessibleCell::getAccessibleStateSet(void)
214 : throw (uno::RuntimeException)
215 : {
216 0 : SolarMutexGuard aGuard;
217 0 : uno::Reference<XAccessibleStateSet> xParentStates;
218 0 : if (getAccessibleParent().is())
219 : {
220 0 : uno::Reference<XAccessibleContext> xParentContext = getAccessibleParent()->getAccessibleContext();
221 0 : xParentStates = xParentContext->getAccessibleStateSet();
222 : }
223 0 : utl::AccessibleStateSetHelper* pStateSet = new utl::AccessibleStateSetHelper();
224 0 : if (IsDefunc(xParentStates))
225 0 : pStateSet->AddState(AccessibleStateType::DEFUNC);
226 : else
227 : {
228 0 : if (IsEditable(xParentStates))
229 : {
230 0 : pStateSet->AddState(AccessibleStateType::EDITABLE);
231 0 : pStateSet->AddState(AccessibleStateType::RESIZABLE);
232 : }
233 0 : pStateSet->AddState(AccessibleStateType::ENABLED);
234 0 : pStateSet->AddState(AccessibleStateType::MULTI_LINE);
235 0 : pStateSet->AddState(AccessibleStateType::MULTI_SELECTABLE);
236 0 : if (IsOpaque(xParentStates))
237 0 : pStateSet->AddState(AccessibleStateType::OPAQUE);
238 0 : pStateSet->AddState(AccessibleStateType::SELECTABLE);
239 0 : if (IsSelected())
240 0 : pStateSet->AddState(AccessibleStateType::SELECTED);
241 0 : if (isShowing())
242 0 : pStateSet->AddState(AccessibleStateType::SHOWING);
243 0 : pStateSet->AddState(AccessibleStateType::TRANSIENT);
244 0 : if (isVisible())
245 0 : pStateSet->AddState(AccessibleStateType::VISIBLE);
246 : }
247 0 : return pStateSet;
248 : }
249 :
250 : uno::Reference<XAccessibleRelationSet> SAL_CALL
251 0 : ScAccessibleCell::getAccessibleRelationSet(void)
252 : throw (uno::RuntimeException)
253 : {
254 0 : SolarMutexGuard aGuard;
255 0 : IsObjectValid();
256 0 : utl::AccessibleRelationSetHelper* pRelationSet = NULL;
257 0 : if (mpAccDoc)
258 0 : pRelationSet = mpAccDoc->GetRelationSet(&maCellAddress);
259 0 : if (!pRelationSet)
260 0 : pRelationSet = new utl::AccessibleRelationSetHelper();
261 0 : FillDependends(pRelationSet);
262 0 : FillPrecedents(pRelationSet);
263 0 : return pRelationSet;
264 : }
265 :
266 : //===== XServiceInfo ====================================================
267 :
268 0 : ::rtl::OUString SAL_CALL ScAccessibleCell::getImplementationName(void)
269 : throw (uno::RuntimeException)
270 : {
271 0 : return rtl::OUString(RTL_CONSTASCII_USTRINGPARAM ("ScAccessibleCell"));
272 : }
273 :
274 : uno::Sequence< ::rtl::OUString> SAL_CALL
275 0 : ScAccessibleCell::getSupportedServiceNames(void)
276 : throw (uno::RuntimeException)
277 : {
278 0 : uno::Sequence< ::rtl::OUString > aSequence = ScAccessibleContextBase::getSupportedServiceNames();
279 0 : sal_Int32 nOldSize(aSequence.getLength());
280 0 : aSequence.realloc(nOldSize + 1);
281 0 : ::rtl::OUString* pNames = aSequence.getArray();
282 :
283 0 : pNames[nOldSize] = rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("com.sun.star.sheet.AccessibleCell"));
284 :
285 0 : return aSequence;
286 : }
287 :
288 : //==== internal =========================================================
289 :
290 0 : sal_Bool ScAccessibleCell::IsDefunc(
291 : const uno::Reference<XAccessibleStateSet>& rxParentStates)
292 : {
293 0 : return ScAccessibleContextBase::IsDefunc() || (mpDoc == NULL) || (mpViewShell == NULL) || !getAccessibleParent().is() ||
294 0 : (rxParentStates.is() && rxParentStates->contains(AccessibleStateType::DEFUNC));
295 : }
296 :
297 0 : sal_Bool ScAccessibleCell::IsEditable(
298 : const uno::Reference<XAccessibleStateSet>& rxParentStates)
299 : {
300 0 : sal_Bool bEditable(sal_True);
301 0 : if (rxParentStates.is() && !rxParentStates->contains(AccessibleStateType::EDITABLE) &&
302 : mpDoc)
303 : {
304 : // here I have to test whether the protection of the table should influence this cell.
305 : const ScProtectionAttr* pItem = (const ScProtectionAttr*)mpDoc->GetAttr(
306 0 : maCellAddress.Col(), maCellAddress.Row(),
307 0 : maCellAddress.Tab(), ATTR_PROTECTION);
308 0 : if (pItem)
309 0 : bEditable = !pItem->GetProtection();
310 : }
311 0 : return bEditable;
312 : }
313 :
314 0 : sal_Bool ScAccessibleCell::IsOpaque(
315 : const uno::Reference<XAccessibleStateSet>& /* rxParentStates */)
316 : {
317 : // test whether there is a background color
318 0 : sal_Bool bOpaque(sal_True);
319 0 : if (mpDoc)
320 : {
321 : const SvxBrushItem* pItem = (const SvxBrushItem*)mpDoc->GetAttr(
322 0 : maCellAddress.Col(), maCellAddress.Row(),
323 0 : maCellAddress.Tab(), ATTR_BACKGROUND);
324 0 : if (pItem)
325 0 : bOpaque = pItem->GetColor() != COL_TRANSPARENT;
326 : }
327 0 : return bOpaque;
328 : }
329 :
330 0 : sal_Bool ScAccessibleCell::IsSelected()
331 : {
332 0 : sal_Bool bResult(false);
333 0 : if (mpViewShell && mpViewShell->GetViewData())
334 : {
335 0 : const ScMarkData& rMarkdata = mpViewShell->GetViewData()->GetMarkData();
336 0 : bResult = rMarkdata.IsCellMarked(maCellAddress.Col(), maCellAddress.Row());
337 : }
338 0 : return bResult;
339 : }
340 :
341 0 : ScDocument* ScAccessibleCell::GetDocument(ScTabViewShell* pViewShell)
342 : {
343 0 : ScDocument* pDoc = NULL;
344 0 : if (pViewShell && pViewShell->GetViewData())
345 0 : pDoc = pViewShell->GetViewData()->GetDocument();
346 0 : return pDoc;
347 : }
348 :
349 : SAL_WNODEPRECATED_DECLARATIONS_PUSH
350 0 : ::std::auto_ptr< SvxEditSource > ScAccessibleCell::CreateEditSource(ScTabViewShell* pViewShell, ScAddress aCell, ScSplitPos eSplitPos)
351 : {
352 : ::std::auto_ptr < ScAccessibleTextData > pAccessibleCellTextData
353 0 : ( new ScAccessibleCellTextData( pViewShell, aCell, eSplitPos, this ) );
354 0 : ::std::auto_ptr< SvxEditSource > pEditSource (new ScAccessibilityEditSource(pAccessibleCellTextData));
355 :
356 0 : return pEditSource;
357 : }
358 : SAL_WNODEPRECATED_DECLARATIONS_POP
359 :
360 0 : void ScAccessibleCell::FillDependends(utl::AccessibleRelationSetHelper* pRelationSet)
361 : {
362 0 : if (mpDoc)
363 : {
364 0 : ScCellIterator aCellIter( mpDoc, 0,0, maCellAddress.Tab(), MAXCOL,MAXROW, maCellAddress.Tab() );
365 0 : ScBaseCell* pCell = aCellIter.GetFirst();
366 0 : while (pCell)
367 : {
368 0 : if (pCell->GetCellType() == CELLTYPE_FORMULA)
369 : {
370 0 : sal_Bool bFound(false);
371 0 : ScDetectiveRefIter aIter( (ScFormulaCell*) pCell );
372 0 : ScRange aRef;
373 0 : while ( !bFound && aIter.GetNextRef( aRef ) )
374 : {
375 0 : if (aRef.In(maCellAddress))
376 0 : bFound = sal_True;
377 : }
378 0 : if (bFound)
379 0 : AddRelation(ScAddress(aCellIter.GetCol(), aCellIter.GetRow(), aCellIter.GetTab()), AccessibleRelationType::CONTROLLER_FOR, pRelationSet);
380 : }
381 0 : pCell = aCellIter.GetNext();
382 : }
383 : }
384 0 : }
385 :
386 0 : void ScAccessibleCell::FillPrecedents(utl::AccessibleRelationSetHelper* pRelationSet)
387 : {
388 0 : if (mpDoc)
389 : {
390 0 : ScBaseCell* pBaseCell = mpDoc->GetCell(maCellAddress);
391 0 : if (pBaseCell && (pBaseCell->GetCellType() == CELLTYPE_FORMULA))
392 : {
393 0 : ScFormulaCell* pFCell = (ScFormulaCell*) pBaseCell;
394 :
395 0 : ScDetectiveRefIter aIter( pFCell );
396 0 : ScRange aRef;
397 0 : while ( aIter.GetNextRef( aRef ) )
398 : {
399 0 : AddRelation( aRef, AccessibleRelationType::CONTROLLED_BY, pRelationSet);
400 : }
401 : }
402 : }
403 0 : }
404 :
405 0 : void ScAccessibleCell::AddRelation(const ScAddress& rCell,
406 : const sal_uInt16 aRelationType,
407 : utl::AccessibleRelationSetHelper* pRelationSet)
408 : {
409 0 : AddRelation(ScRange(rCell, rCell), aRelationType, pRelationSet);
410 0 : }
411 :
412 0 : void ScAccessibleCell::AddRelation(const ScRange& rRange,
413 : const sal_uInt16 aRelationType,
414 : utl::AccessibleRelationSetHelper* pRelationSet)
415 : {
416 0 : uno::Reference < XAccessibleTable > xTable ( getAccessibleParent()->getAccessibleContext(), uno::UNO_QUERY );
417 0 : if (xTable.is())
418 : {
419 0 : sal_uInt32 nCount(static_cast<sal_uInt32>(rRange.aEnd.Col() -
420 0 : rRange.aStart.Col() + 1) * (rRange.aEnd.Row() -
421 0 : rRange.aStart.Row() + 1));
422 0 : uno::Sequence < uno::Reference < uno::XInterface > > aTargetSet( nCount );
423 0 : uno::Reference < uno::XInterface >* pTargetSet = aTargetSet.getArray();
424 0 : if (pTargetSet)
425 : {
426 0 : sal_uInt32 nPos(0);
427 0 : for (sal_uInt32 nRow = rRange.aStart.Row(); nRow <= sal::static_int_cast<sal_uInt32>(rRange.aEnd.Row()); ++nRow)
428 : {
429 0 : for (sal_uInt32 nCol = rRange.aStart.Col(); nCol <= sal::static_int_cast<sal_uInt32>(rRange.aEnd.Col()); ++nCol)
430 : {
431 0 : pTargetSet[nPos] = xTable->getAccessibleCellAt(nRow, nCol);
432 0 : ++nPos;
433 : }
434 : }
435 : OSL_ENSURE(nCount == nPos, "something wents wrong");
436 : }
437 0 : AccessibleRelation aRelation;
438 0 : aRelation.RelationType = aRelationType;
439 0 : aRelation.TargetSet = aTargetSet;
440 0 : pRelationSet->AddRelation(aRelation);
441 0 : }
442 15 : }
443 :
444 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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