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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 : // must be first
22 : #include <canvas/debug.hxx>
23 : #include <canvas/verbosetrace.hxx>
24 : #include <cppuhelper/exc_hlp.hxx>
25 : #include <comphelper/anytostring.hxx>
26 : #include <com/sun/star/presentation/ParagraphTarget.hpp>
27 : #include <com/sun/star/animations/AnimationNodeType.hpp>
28 : #include <com/sun/star/animations/Timing.hpp>
29 : #include <com/sun/star/animations/AnimationAdditiveMode.hpp>
30 : #include <com/sun/star/presentation/ShapeAnimationSubType.hpp>
31 :
32 : #include "nodetools.hxx"
33 : #include "doctreenode.hxx"
34 : #include "animationbasenode.hxx"
35 : #include "delayevent.hxx"
36 : #include "framerate.hxx"
37 :
38 : #include <boost/bind.hpp>
39 : #include <boost/optional.hpp>
40 : #include <algorithm>
41 :
42 : using namespace com::sun::star;
43 :
44 : namespace slideshow {
45 : namespace internal {
46 :
47 0 : AnimationBaseNode::AnimationBaseNode(
48 : const uno::Reference< animations::XAnimationNode >& xNode,
49 : const BaseContainerNodeSharedPtr& rParent,
50 : const NodeContext& rContext )
51 : : BaseNode( xNode, rParent, rContext ),
52 : mxAnimateNode( xNode, uno::UNO_QUERY_THROW ),
53 : maAttributeLayerHolder(),
54 : maSlideSize( rContext.maSlideSize ),
55 : mpActivity(),
56 : mpShape(),
57 : mpShapeSubset(),
58 : mpSubsetManager(rContext.maContext.mpSubsettableShapeManager),
59 0 : mbIsIndependentSubset( rContext.mbIsIndependentSubset )
60 : {
61 : // extract native node targets
62 : // ===========================
63 :
64 : // plain shape target
65 0 : uno::Reference< drawing::XShape > xShape( mxAnimateNode->getTarget(),
66 0 : uno::UNO_QUERY );
67 :
68 : // distinguish 5 cases:
69 :
70 : // - plain shape target
71 : // (NodeContext.mpMasterShapeSubset full set)
72 :
73 : // - parent-generated subset (generate an
74 : // independent subset)
75 :
76 : // - parent-generated subset from iteration
77 : // (generate a dependent subset)
78 :
79 : // - XShape target at the XAnimatioNode (generate
80 : // a plain shape target)
81 :
82 : // - ParagraphTarget target at the XAnimationNode
83 : // (generate an independent shape subset)
84 0 : if( rContext.mpMasterShapeSubset )
85 : {
86 0 : if( rContext.mpMasterShapeSubset->isFullSet() )
87 : {
88 : // case 1: plain shape target from parent
89 0 : mpShape = rContext.mpMasterShapeSubset->getSubsetShape();
90 : }
91 : else
92 : {
93 : // cases 2 & 3: subset shape
94 0 : mpShapeSubset = rContext.mpMasterShapeSubset;
95 : }
96 : }
97 : else
98 : {
99 : // no parent-provided shape, try to extract
100 : // from XAnimationNode - cases 4 and 5
101 :
102 0 : if( xShape.is() )
103 : {
104 0 : mpShape = lookupAttributableShape( getContext().mpSubsettableShapeManager,
105 0 : xShape );
106 : }
107 : else
108 : {
109 : // no shape provided. Maybe a ParagraphTarget?
110 0 : presentation::ParagraphTarget aTarget;
111 :
112 0 : if( !(mxAnimateNode->getTarget() >>= aTarget) )
113 0 : ENSURE_OR_THROW(
114 : false, "could not extract any target information" );
115 :
116 0 : xShape = aTarget.Shape;
117 :
118 0 : ENSURE_OR_THROW( xShape.is(), "invalid shape in ParagraphTarget" );
119 :
120 0 : mpShape = lookupAttributableShape( getContext().mpSubsettableShapeManager,
121 0 : xShape );
122 :
123 : // NOTE: For shapes with ParagraphTarget, we ignore
124 : // the SubItem property. We implicitly assume that it
125 : // is set to ONLY_TEXT.
126 : OSL_ENSURE(
127 : mxAnimateNode->getSubItem() ==
128 : presentation::ShapeAnimationSubType::ONLY_TEXT ||
129 : mxAnimateNode->getSubItem() ==
130 : presentation::ShapeAnimationSubType::AS_WHOLE,
131 : "ParagraphTarget given, but subitem not AS_TEXT or AS_WHOLE? "
132 : "Make up your mind, I'll ignore the subitem." );
133 :
134 : // okay, found a ParagraphTarget with a valid XShape. Does the shape
135 : // provide the given paragraph?
136 0 : if( aTarget.Paragraph >= 0 &&
137 0 : mpShape->getTreeNodeSupplier().getNumberOfTreeNodes(
138 0 : DocTreeNode::NODETYPE_LOGICAL_PARAGRAPH) > aTarget.Paragraph )
139 : {
140 : const DocTreeNode& rTreeNode(
141 0 : mpShape->getTreeNodeSupplier().getTreeNode(
142 : aTarget.Paragraph,
143 0 : DocTreeNode::NODETYPE_LOGICAL_PARAGRAPH ) );
144 :
145 : // CAUTION: the creation of the subset shape
146 : // _must_ stay in the node constructor, since
147 : // Slide::prefetchShow() initializes shape
148 : // attributes right after animation import (or
149 : // the Slide class must be changed).
150 : mpShapeSubset.reset(
151 : new ShapeSubset( mpShape,
152 : rTreeNode,
153 0 : mpSubsetManager ));
154 :
155 : // Override NodeContext, and flag this node as
156 : // a special independent subset one. This is
157 : // important when applying initial attributes:
158 : // independent shape subsets must be setup
159 : // when the slide starts, since they, as their
160 : // name suggest, can have state independent to
161 : // the master shape. The following example
162 : // might illustrate that: a master shape has
163 : // no effect, one of the text paragraphs
164 : // within it has an appear effect. Now, the
165 : // respective paragraph must be invisible when
166 : // the slide is initially shown, and become
167 : // visible only when the effect starts.
168 0 : mbIsIndependentSubset = true;
169 :
170 : // already enable subset right here, the
171 : // setup of initial shape attributes of
172 : // course needs the subset shape
173 : // generated, to apply e.g. visibility
174 : // changes.
175 0 : mpShapeSubset->enableSubsetShape();
176 0 : }
177 : }
178 0 : }
179 0 : }
180 :
181 0 : void AnimationBaseNode::dispose()
182 : {
183 0 : if (mpActivity) {
184 0 : mpActivity->dispose();
185 0 : mpActivity.reset();
186 : }
187 :
188 0 : maAttributeLayerHolder.reset();
189 0 : mxAnimateNode.clear();
190 0 : mpShape.reset();
191 0 : mpShapeSubset.reset();
192 :
193 0 : BaseNode::dispose();
194 0 : }
195 :
196 0 : bool AnimationBaseNode::init_st()
197 : {
198 : // if we've still got an old activity lying around, dispose it:
199 0 : if (mpActivity) {
200 0 : mpActivity->dispose();
201 0 : mpActivity.reset();
202 : }
203 :
204 : // note: actually disposing the activity too early might cause problems,
205 : // because on dequeued() it calls endAnimation(pAnim->end()), thus ending
206 : // animation _after_ last screen update.
207 : // review that end() is properly called (which calls endAnimation(), too).
208 :
209 : try {
210 : // TODO(F2): For restart functionality, we must regenerate activities,
211 : // since they are not able to reset their state (or implement _that_)
212 0 : mpActivity = createActivity();
213 : }
214 0 : catch (uno::Exception const&) {
215 : OSL_FAIL( OUStringToOString(
216 : comphelper::anyToString(cppu::getCaughtException()),
217 : RTL_TEXTENCODING_UTF8).getStr() );
218 : // catch and ignore. We later handle empty activities, but for
219 : // other nodes to function properly, the core functionality of
220 : // this node must remain up and running.
221 : }
222 0 : return true;
223 : }
224 :
225 0 : bool AnimationBaseNode::resolve_st()
226 : {
227 : // enable shape subset for automatically generated
228 : // subsets. Independent subsets are already setup
229 : // during construction time. Doing it only here
230 : // saves us a lot of sprites and shapes lying
231 : // around. This is especially important for
232 : // character-wise iterations, since the shape
233 : // content (e.g. thousands of characters) would
234 : // otherwise be painted character-by-character.
235 0 : if (isDependentSubsettedShape() && mpShapeSubset) {
236 0 : mpShapeSubset->enableSubsetShape();
237 : }
238 0 : return true;
239 : }
240 :
241 0 : void AnimationBaseNode::activate_st()
242 : {
243 : // create new attribute layer
244 0 : maAttributeLayerHolder.createAttributeLayer( getShape() );
245 :
246 0 : ENSURE_OR_THROW( maAttributeLayerHolder.get(),
247 : "Could not generate shape attribute layer" );
248 :
249 : // TODO(Q2): This affects the way mpActivity
250 : // works, but is performed here because of
251 : // locality (we're fiddling with the additive mode
252 : // here, anyway, and it's the only place where we
253 : // do). OTOH, maybe the complete additive mode
254 : // setup should be moved to the activities.
255 :
256 : // for simple by-animations, the SMIL spec
257 : // requires us to emulate "0,by-value" value list
258 : // behaviour, with additive mode forced to "sum",
259 : // no matter what the input is
260 : // (http://www.w3.org/TR/smil20/animation.html#adef-by).
261 0 : if( mxAnimateNode->getBy().hasValue() &&
262 0 : !mxAnimateNode->getTo().hasValue() &&
263 0 : !mxAnimateNode->getFrom().hasValue() )
264 : {
265 : // force attribute mode to REPLACE (note the
266 : // subtle discrepancy to the paragraph above,
267 : // where SMIL requires SUM. This is internally
268 : // handled by the FromToByActivity, and is
269 : // because otherwise DOM values would not be
270 : // handled correctly: the activity cannot
271 : // determine whether an
272 : // Activity::getUnderlyingValue() yields the
273 : // DOM value, or already a summed-up conglomerate)
274 :
275 : // Note that this poses problems with our
276 : // hybrid activity duration (time or min number of frames),
277 : // since if activities
278 : // exceed their duration, wrong 'by' start
279 : // values might arise ('Laser effect')
280 : maAttributeLayerHolder.get()->setAdditiveMode(
281 0 : animations::AnimationAdditiveMode::REPLACE );
282 : }
283 : else
284 : {
285 : // apply additive mode to newly created Attribute layer
286 : maAttributeLayerHolder.get()->setAdditiveMode(
287 0 : mxAnimateNode->getAdditive() );
288 : }
289 :
290 : // fake normal animation behaviour, even if we
291 : // show nothing. This is the appropriate way to
292 : // handle errors on Activity generation, because
293 : // maybe all other effects on the slide are
294 : // correctly initialized (but won't run, if we
295 : // signal an error here)
296 0 : if (mpActivity) {
297 : // supply Activity (and the underlying Animation) with
298 : // it's AttributeLayer, to perform the animation on
299 0 : mpActivity->setTargets( getShape(), maAttributeLayerHolder.get() );
300 :
301 : // add to activities queue
302 0 : getContext().mrActivitiesQueue.addActivity( mpActivity );
303 : }
304 : else {
305 : // Actually, DO generate the event for empty activity,
306 : // to keep the chain of animations running
307 0 : BaseNode::scheduleDeactivationEvent();
308 : }
309 0 : }
310 :
311 0 : void AnimationBaseNode::deactivate_st( NodeState eDestState )
312 : {
313 0 : if (eDestState == FROZEN) {
314 0 : if (mpActivity)
315 0 : mpActivity->end();
316 : }
317 :
318 0 : if (isDependentSubsettedShape()) {
319 : // for dependent subsets, remove subset shape
320 : // from layer, re-integrate subsetted part
321 : // back into original shape. For independent
322 : // subsets, we cannot make any assumptions
323 : // about subset attribute state relative to
324 : // master shape, thus, have to keep it. This
325 : // will effectively re-integrate the subsetted
326 : // part into the original shape (whose
327 : // animation will hopefully have ended, too)
328 :
329 : // this statement will save a whole lot of
330 : // sprites for iterated text effects, since
331 : // those sprites will only exist during the
332 : // actual lifetime of the effects
333 0 : if (mpShapeSubset) {
334 0 : mpShapeSubset->disableSubsetShape();
335 : }
336 : }
337 :
338 0 : if (eDestState == ENDED) {
339 :
340 : // no shape anymore, no layer needed:
341 0 : maAttributeLayerHolder.reset();
342 :
343 0 : if (! isDependentSubsettedShape()) {
344 :
345 : // for all other shapes, removing the
346 : // attribute layer quite possibly changes
347 : // shape display. Thus, force update
348 0 : AttributableShapeSharedPtr const pShape( getShape() );
349 :
350 : // don't anybody dare to check against
351 : // pShape->isVisible() here, removing the
352 : // attribute layer might actually make the
353 : // shape invisible!
354 0 : getContext().mpSubsettableShapeManager->notifyShapeUpdate( pShape );
355 : }
356 :
357 0 : if (mpActivity) {
358 : // kill activity, if still running
359 0 : mpActivity->dispose();
360 0 : mpActivity.reset();
361 : }
362 : }
363 0 : }
364 :
365 0 : bool AnimationBaseNode::hasPendingAnimation() const
366 : {
367 : // TODO(F1): This might not always be true. Are there 'inactive'
368 : // animation nodes?
369 0 : return true;
370 : }
371 :
372 : #if OSL_DEBUG_LEVEL >= 2 && defined(DBG_UTIL)
373 : void AnimationBaseNode::showState() const
374 : {
375 : BaseNode::showState();
376 :
377 : VERBOSE_TRACE( "AnimationBaseNode info: independent subset=%s",
378 : mbIsIndependentSubset ? "y" : "n" );
379 : }
380 : #endif
381 :
382 : ActivitiesFactory::CommonParameters
383 0 : AnimationBaseNode::fillCommonParameters() const
384 : {
385 0 : double nDuration = 0.0;
386 :
387 : // TODO(F3): Duration/End handling is barely there
388 0 : if( !(mxAnimateNode->getDuration() >>= nDuration) ) {
389 0 : mxAnimateNode->getEnd() >>= nDuration; // Wah.
390 : }
391 :
392 : // minimal duration we fallback to (avoid 0 here!)
393 0 : nDuration = ::std::max( 0.001, nDuration );
394 :
395 0 : const bool bAutoReverse( mxAnimateNode->getAutoReverse() );
396 :
397 0 : boost::optional<double> aRepeats;
398 0 : double nRepeats = 0;
399 0 : if( (mxAnimateNode->getRepeatCount() >>= nRepeats) ) {
400 0 : aRepeats.reset( nRepeats );
401 : }
402 : else {
403 0 : if( (mxAnimateNode->getRepeatDuration() >>= nRepeats) ) {
404 : // when repeatDuration is given,
405 : // autoreverse does _not_ modify the
406 : // active duration. Thus, calc repeat
407 : // count with already adapted simple
408 : // duration (twice the specified duration)
409 :
410 : // convert duration back to repeat counts
411 0 : if( bAutoReverse )
412 0 : aRepeats.reset( nRepeats / (2.0 * nDuration) );
413 : else
414 0 : aRepeats.reset( nRepeats / nDuration );
415 : }
416 : else
417 : {
418 : // no double value for both values - Timing::INDEFINITE?
419 : animations::Timing eTiming;
420 :
421 0 : if( !(mxAnimateNode->getRepeatDuration() >>= eTiming) ||
422 0 : eTiming != animations::Timing_INDEFINITE )
423 : {
424 0 : if( !(mxAnimateNode->getRepeatCount() >>= eTiming) ||
425 0 : eTiming != animations::Timing_INDEFINITE )
426 : {
427 : // no indefinite timing, no other values given -
428 : // use simple run, i.e. repeat of 1.0
429 0 : aRepeats.reset( 1.0 );
430 : }
431 : }
432 : }
433 : }
434 :
435 : // calc accel/decel:
436 0 : double nAcceleration = 0.0;
437 0 : double nDeceleration = 0.0;
438 0 : BaseNodeSharedPtr const pSelf( getSelf() );
439 0 : for ( boost::shared_ptr<BaseNode> pNode( pSelf );
440 0 : pNode; pNode = pNode->getParentNode() )
441 : {
442 : uno::Reference<animations::XAnimationNode> const xAnimationNode(
443 0 : pNode->getXAnimationNode() );
444 : nAcceleration = std::max( nAcceleration,
445 0 : xAnimationNode->getAcceleration() );
446 : nDeceleration = std::max( nDeceleration,
447 0 : xAnimationNode->getDecelerate() );
448 0 : }
449 :
450 0 : EventSharedPtr pEndEvent;
451 0 : if (pSelf) {
452 0 : pEndEvent = makeEvent(
453 : boost::bind( &AnimationNode::deactivate, pSelf ),
454 0 : "AnimationBaseNode::deactivate");
455 : }
456 :
457 : // Calculate the minimum frame count that depends on the duration and
458 : // the minimum frame count.
459 : const sal_Int32 nMinFrameCount (basegfx::clamp<sal_Int32>(
460 0 : basegfx::fround(nDuration * FrameRate::MinimumFramesPerSecond), 1, 10));
461 :
462 : return ActivitiesFactory::CommonParameters(
463 : pEndEvent,
464 0 : getContext().mrEventQueue,
465 0 : getContext().mrActivitiesQueue,
466 : nDuration,
467 : nMinFrameCount,
468 : bAutoReverse,
469 : aRepeats,
470 : nAcceleration,
471 : nDeceleration,
472 : getShape(),
473 0 : getSlideSize());
474 : }
475 :
476 0 : AttributableShapeSharedPtr AnimationBaseNode::getShape() const
477 : {
478 : // any subsetting at all?
479 0 : if (mpShapeSubset)
480 0 : return mpShapeSubset->getSubsetShape();
481 : else
482 0 : return mpShape; // nope, plain shape always
483 : }
484 :
485 : } // namespace internal
486 3 : } // namespace slideshow
487 :
488 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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