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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 <svx/sdr/overlay/overlaymanager.hxx>
21 : #include <basegfx/point/b2dpoint.hxx>
22 : #include <basegfx/range/b2drange.hxx>
23 : #include <tools/gen.hxx>
24 : #include <vcl/outdev.hxx>
25 : #include <vcl/window.hxx>
26 : #include <svx/sdr/overlay/overlayobject.hxx>
27 : #include <basegfx/matrix/b2dhommatrix.hxx>
28 : #include <drawinglayer/processor2d/baseprocessor2d.hxx>
29 : #include <drawinglayer/processor2d/processorfromoutputdevice.hxx>
30 :
31 : //////////////////////////////////////////////////////////////////////////////
32 :
33 : using namespace com::sun::star;
34 :
35 : //////////////////////////////////////////////////////////////////////////////
36 :
37 : namespace sdr
38 : {
39 : namespace overlay
40 : {
41 9 : void OverlayManager::ImpDrawMembers(const basegfx::B2DRange& rRange, OutputDevice& rDestinationDevice) const
42 : {
43 9 : const sal_uInt32 nSize(maOverlayObjects.size());
44 :
45 9 : if(nSize)
46 : {
47 9 : const sal_uInt16 nOriginalAA(rDestinationDevice.GetAntialiasing());
48 9 : const bool bIsAntiAliasing(getDrawinglayerOpt().IsAntiAliasing());
49 :
50 : // create processor
51 : drawinglayer::processor2d::BaseProcessor2D* pProcessor =
52 : ::drawinglayer::processor2d::createBaseProcessor2DFromOutputDevice(
53 : rDestinationDevice,
54 9 : getCurrentViewInformation2D());
55 :
56 9 : if(pProcessor)
57 : {
58 27 : for(OverlayObjectVector::const_iterator aIter(maOverlayObjects.begin()); aIter != maOverlayObjects.end(); ++aIter)
59 : {
60 : OSL_ENSURE(*aIter, "Corrupted OverlayObject List (!)");
61 18 : const OverlayObject& rCandidate = **aIter;
62 :
63 18 : if(rCandidate.isVisible())
64 : {
65 18 : const drawinglayer::primitive2d::Primitive2DSequence& rSequence = rCandidate.getOverlayObjectPrimitive2DSequence();
66 :
67 18 : if(rSequence.hasElements())
68 : {
69 18 : if(rRange.overlaps(rCandidate.getBaseRange()))
70 : {
71 9 : if(bIsAntiAliasing && rCandidate.allowsAntiAliase())
72 : {
73 0 : rDestinationDevice.SetAntialiasing(nOriginalAA | ANTIALIASING_ENABLE_B2DDRAW);
74 : }
75 : else
76 : {
77 9 : rDestinationDevice.SetAntialiasing(nOriginalAA & ~ANTIALIASING_ENABLE_B2DDRAW);
78 : }
79 :
80 9 : pProcessor->process(rSequence);
81 : }
82 18 : }
83 : }
84 : }
85 :
86 9 : delete pProcessor;
87 : }
88 :
89 : // restore AA settings
90 9 : rDestinationDevice.SetAntialiasing(nOriginalAA);
91 : }
92 9 : }
93 :
94 133 : void OverlayManager::ImpStripeDefinitionChanged()
95 : {
96 133 : const sal_uInt32 nSize(maOverlayObjects.size());
97 :
98 133 : if(nSize)
99 : {
100 0 : for(OverlayObjectVector::iterator aIter(maOverlayObjects.begin()); aIter != maOverlayObjects.end(); ++aIter)
101 : {
102 : OSL_ENSURE(*aIter, "Corrupted OverlayObject List (!)");
103 0 : OverlayObject& rCandidate = **aIter;
104 0 : rCandidate.stripeDefinitionHasChanged();
105 : }
106 : }
107 133 : }
108 :
109 0 : double OverlayManager::getDiscreteOne() const
110 : {
111 0 : if(basegfx::fTools::equalZero(mfDiscreteOne))
112 : {
113 0 : const basegfx::B2DVector aDiscreteInLogic(getOutputDevice().GetInverseViewTransformation() * basegfx::B2DVector(1.0, 0.0));
114 0 : const_cast< OverlayManager* >(this)->mfDiscreteOne = aDiscreteInLogic.getLength();
115 : }
116 :
117 0 : return mfDiscreteOne;
118 : }
119 :
120 133 : OverlayManager::OverlayManager(
121 : OutputDevice& rOutputDevice,
122 : OverlayManager* pOldOverlayManager)
123 : : Scheduler(),
124 : mnRefCount(0),
125 : rmOutputDevice(rOutputDevice),
126 : maOverlayObjects(),
127 : maStripeColorA(Color(COL_BLACK)),
128 : maStripeColorB(Color(COL_WHITE)),
129 : mnStripeLengthPixel(5),
130 : maDrawinglayerOpt(),
131 : maViewTransformation(),
132 : maViewInformation2D(),
133 133 : mfDiscreteOne(0.0)
134 : {
135 : // set Property 'ReducedDisplayQuality' to true to allow simpler interaction
136 : // visualisations
137 : static bool bUseReducedDisplayQualityForDrag(true);
138 :
139 133 : if(bUseReducedDisplayQualityForDrag)
140 : {
141 133 : uno::Sequence< beans::PropertyValue > xProperties(1);
142 133 : xProperties[0].Name = rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("ReducedDisplayQuality"));
143 133 : xProperties[0].Value <<= true;
144 133 : maViewInformation2D = drawinglayer::geometry::ViewInformation2D(xProperties);
145 : }
146 :
147 133 : if(pOldOverlayManager)
148 : {
149 : // take over OverlayObjects from given OverlayManager. Copy
150 : // the vector of pointers
151 0 : maOverlayObjects = pOldOverlayManager->maOverlayObjects;
152 0 : const sal_uInt32 nSize(maOverlayObjects.size());
153 :
154 0 : if(nSize)
155 : {
156 0 : for(OverlayObjectVector::iterator aIter(maOverlayObjects.begin()); aIter != maOverlayObjects.end(); ++aIter)
157 : {
158 : OSL_ENSURE(*aIter, "Corrupted OverlayObject List (!)");
159 0 : OverlayObject& rCandidate = **aIter;
160 :
161 : // remove from old and add to new OverlayManager
162 0 : pOldOverlayManager->impApplyRemoveActions(rCandidate);
163 0 : impApplyAddActions(rCandidate);
164 : }
165 :
166 0 : pOldOverlayManager->maOverlayObjects.clear();
167 : }
168 : }
169 133 : }
170 :
171 0 : rtl::Reference<OverlayManager> OverlayManager::create(
172 : OutputDevice& rOutputDevice,
173 : OverlayManager* pOldOverlayManager)
174 : {
175 : return rtl::Reference<OverlayManager>(new OverlayManager(rOutputDevice,
176 0 : pOldOverlayManager));
177 : }
178 :
179 57 : const drawinglayer::geometry::ViewInformation2D OverlayManager::getCurrentViewInformation2D() const
180 : {
181 57 : if(getOutputDevice().GetViewTransformation() != maViewTransformation)
182 : {
183 6 : basegfx::B2DRange aViewRange(maViewInformation2D.getViewport());
184 :
185 6 : if(OUTDEV_WINDOW == getOutputDevice().GetOutDevType())
186 : {
187 6 : const Size aOutputSizePixel(getOutputDevice().GetOutputSizePixel());
188 6 : aViewRange = basegfx::B2DRange(0.0, 0.0, aOutputSizePixel.getWidth(), aOutputSizePixel.getHeight());
189 6 : aViewRange.transform(getOutputDevice().GetInverseViewTransformation());
190 : }
191 :
192 6 : OverlayManager* pThis = const_cast< OverlayManager* >(this);
193 :
194 6 : pThis->maViewTransformation = getOutputDevice().GetViewTransformation();
195 : pThis->maViewInformation2D = drawinglayer::geometry::ViewInformation2D(
196 6 : maViewInformation2D.getObjectTransformation(),
197 : maViewTransformation,
198 : aViewRange,
199 6 : maViewInformation2D.getVisualizedPage(),
200 : maViewInformation2D.getViewTime(),
201 18 : maViewInformation2D.getExtendedInformationSequence());
202 6 : pThis->mfDiscreteOne = 0.0;
203 : }
204 :
205 57 : return maViewInformation2D;
206 : }
207 :
208 6 : void OverlayManager::impApplyRemoveActions(OverlayObject& rTarget)
209 : {
210 : // handle evtl. animation
211 6 : if(rTarget.allowsAnimation())
212 : {
213 : // remove from event chain
214 0 : RemoveEvent(&rTarget);
215 : }
216 :
217 : // make invisible
218 6 : invalidateRange(rTarget.getBaseRange());
219 :
220 : // clear manager
221 6 : rTarget.mpOverlayManager = 0;
222 6 : }
223 :
224 12 : void OverlayManager::impApplyAddActions(OverlayObject& rTarget)
225 : {
226 : // set manager
227 12 : rTarget.mpOverlayManager = this;
228 :
229 : // make visible
230 12 : invalidateRange(rTarget.getBaseRange());
231 :
232 : // handle evtl. animation
233 12 : if(rTarget.allowsAnimation())
234 : {
235 : // Trigger at current time to get alive. This will do the
236 : // object-specific next time calculation and hand over adding
237 : // again to the scheduler to the animated object, too. This works for
238 : // a paused or non-paused animator.
239 0 : rTarget.Trigger(GetTime());
240 : }
241 12 : }
242 :
243 16 : OverlayManager::~OverlayManager()
244 : {
245 : // The OverlayManager is not the owner of the OverlayObjects
246 : // and thus will not delete them, but remove them. Profit here
247 : // from knowing that all will be removed
248 8 : const sal_uInt32 nSize(maOverlayObjects.size());
249 :
250 8 : if(nSize)
251 : {
252 0 : for(OverlayObjectVector::iterator aIter(maOverlayObjects.begin()); aIter != maOverlayObjects.end(); ++aIter)
253 : {
254 : OSL_ENSURE(*aIter, "Corrupted OverlayObject List (!)");
255 0 : OverlayObject& rCandidate = **aIter;
256 0 : impApplyRemoveActions(rCandidate);
257 : }
258 :
259 : // erase vector
260 0 : maOverlayObjects.clear();
261 : }
262 8 : }
263 :
264 262 : void OverlayManager::completeRedraw(const Region& rRegion, OutputDevice* pPreRenderDevice) const
265 : {
266 262 : if(!rRegion.IsEmpty() && maOverlayObjects.size())
267 : {
268 : // check for changed MapModes. That may influence the
269 : // logical size of pixel based OverlayObjects (like BitmapHandles)
270 : //ImpCheckMapModeChange();
271 :
272 : // paint members
273 6 : const Rectangle aRegionBoundRect(rRegion.GetBoundRect());
274 : const basegfx::B2DRange aRegionRange(
275 12 : aRegionBoundRect.Left(), aRegionBoundRect.Top(),
276 18 : aRegionBoundRect.Right(), aRegionBoundRect.Bottom());
277 :
278 6 : OutputDevice& rTarget = (pPreRenderDevice) ? *pPreRenderDevice : getOutputDevice();
279 6 : ImpDrawMembers(aRegionRange, rTarget);
280 : }
281 262 : }
282 :
283 0 : void OverlayManager::flush()
284 : {
285 : // default has nothing to do
286 0 : }
287 :
288 : // #i68597# part of content gets copied, react on it
289 0 : void OverlayManager::copyArea(const Point& /*rDestPt*/, const Point& /*rSrcPt*/, const Size& /*rSrcSize*/)
290 : {
291 : // unbuffered versions do nothing here
292 0 : }
293 :
294 0 : void OverlayManager::restoreBackground(const Region& /*rRegion*/) const
295 : {
296 : // unbuffered versions do nothing here
297 0 : }
298 :
299 12 : void OverlayManager::add(OverlayObject& rOverlayObject)
300 : {
301 : OSL_ENSURE(0 == rOverlayObject.mpOverlayManager, "OverlayObject is added twice to an OverlayManager (!)");
302 :
303 : // add to the end of chain to preserve display order in paint
304 12 : maOverlayObjects.push_back(&rOverlayObject);
305 :
306 : // execute add actions
307 12 : impApplyAddActions(rOverlayObject);
308 12 : }
309 :
310 6 : void OverlayManager::remove(OverlayObject& rOverlayObject)
311 : {
312 : OSL_ENSURE(rOverlayObject.mpOverlayManager == this, "OverlayObject is removed from wrong OverlayManager (!)");
313 :
314 : // execute remove actions
315 6 : impApplyRemoveActions(rOverlayObject);
316 :
317 : // remove from vector
318 6 : const OverlayObjectVector::iterator aFindResult = ::std::find(maOverlayObjects.begin(), maOverlayObjects.end(), &rOverlayObject);
319 6 : const bool bFound(aFindResult != maOverlayObjects.end());
320 : OSL_ENSURE(bFound, "OverlayObject NOT found at OverlayManager (!)");
321 :
322 6 : if(bFound)
323 : {
324 6 : maOverlayObjects.erase(aFindResult);
325 : }
326 6 : }
327 :
328 0 : void OverlayManager::invalidateRange(const basegfx::B2DRange& rRange)
329 : {
330 0 : if(OUTDEV_WINDOW == getOutputDevice().GetOutDevType())
331 : {
332 0 : if(getDrawinglayerOpt().IsAntiAliasing())
333 : {
334 : // assume AA needs one pixel more and invalidate one pixel more
335 0 : const double fDiscreteOne(getDiscreteOne());
336 : const Rectangle aInvalidateRectangle(
337 0 : (sal_Int32)floor(rRange.getMinX() - fDiscreteOne),
338 0 : (sal_Int32)floor(rRange.getMinY() - fDiscreteOne),
339 0 : (sal_Int32)ceil(rRange.getMaxX() + fDiscreteOne),
340 0 : (sal_Int32)ceil(rRange.getMaxY() + fDiscreteOne));
341 :
342 : // simply invalidate
343 0 : ((Window&)getOutputDevice()).Invalidate(aInvalidateRectangle, INVALIDATE_NOERASE);
344 : }
345 : else
346 : {
347 : // #i77674# transform to rectangle. Use floor/ceil to get all covered
348 : // discrete pixels, see #i75163# and OverlayManagerBuffered::invalidateRange
349 : const Rectangle aInvalidateRectangle(
350 0 : (sal_Int32)floor(rRange.getMinX()), (sal_Int32)floor(rRange.getMinY()),
351 0 : (sal_Int32)ceil(rRange.getMaxX()), (sal_Int32)ceil(rRange.getMaxY()));
352 :
353 : // simply invalidate
354 0 : ((Window&)getOutputDevice()).Invalidate(aInvalidateRectangle, INVALIDATE_NOERASE);
355 : }
356 : }
357 0 : }
358 :
359 : // stripe support ColA
360 133 : void OverlayManager::setStripeColorA(Color aNew)
361 : {
362 133 : if(aNew != maStripeColorA)
363 : {
364 0 : maStripeColorA = aNew;
365 0 : ImpStripeDefinitionChanged();
366 : }
367 133 : }
368 :
369 : // stripe support ColB
370 133 : void OverlayManager::setStripeColorB(Color aNew)
371 : {
372 133 : if(aNew != maStripeColorB)
373 : {
374 0 : maStripeColorB = aNew;
375 0 : ImpStripeDefinitionChanged();
376 : }
377 133 : }
378 :
379 : // stripe support StripeLengthPixel
380 133 : void OverlayManager::setStripeLengthPixel(sal_uInt32 nNew)
381 : {
382 133 : if(nNew != mnStripeLengthPixel)
383 : {
384 133 : mnStripeLengthPixel = nNew;
385 133 : ImpStripeDefinitionChanged();
386 : }
387 133 : }
388 :
389 281 : oslInterlockedCount OverlayManager::acquire()
390 : {
391 281 : return osl_atomic_increment( &mnRefCount );
392 : }
393 :
394 156 : oslInterlockedCount OverlayManager::release()
395 : {
396 156 : oslInterlockedCount nCount( osl_atomic_decrement( &mnRefCount ) );
397 156 : if ( nCount == 0 )
398 8 : delete this;
399 156 : return nCount;
400 : }
401 :
402 : } // end of namespace overlay
403 : } // end of namespace sdr
404 :
405 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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