41 #ifdef HB_FILTER_EFFECTS |
41 #ifdef HB_FILTER_EFFECTS |
42 #include "hbvgeffect_p.h" |
42 #include "hbvgeffect_p.h" |
43 #include "hbvgchainedeffect_p.h" |
43 #include "hbvgchainedeffect_p.h" |
44 #endif |
44 #endif |
45 |
45 |
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46 static const char effect_fw_marker[] = "effw_chain"; |
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47 |
46 HbEffectGroup::HbEffectGroup( |
48 HbEffectGroup::HbEffectGroup( |
47 const QString &effectEventType, |
49 const QString &effectEventType, |
48 QGraphicsItem *registrationItem, |
50 QGraphicsItem *registrationItem, |
49 QGraphicsItem *targetItem, |
51 QGraphicsItem *targetItem, |
50 const QString &itemType) |
52 const QString &itemType) |
261 |
266 |
262 HbVgChainedEffect *HbEffectGroup::vgEffect() |
267 HbVgChainedEffect *HbEffectGroup::vgEffect() |
263 { |
268 { |
264 if (!mVgEffect) { |
269 if (!mVgEffect) { |
265 mVgEffect = new HbVgChainedEffect; |
270 mVgEffect = new HbVgChainedEffect; |
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271 mVgEffect->setObjectName(effect_fw_marker); |
266 } |
272 } |
267 return mVgEffect; |
273 return mVgEffect; |
268 } |
274 } |
269 |
275 |
270 void HbEffectGroup::activateVgEffect() |
276 void HbEffectGroup::activateVgEffect() |
271 { |
277 { |
272 if (!mVgEffectActivated) { |
278 if (!mVgEffectActivated) { |
273 mVgEffectGuard = QPointer<QGraphicsEffect>(); |
279 mVgEffectGuard = QPointer<QGraphicsEffect>(); |
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280 if (mTargetItem->graphicsEffect()) { |
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281 // Manually installed effects should not get lost. For example a |
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282 // pop-up may install a mask effect before or after this |
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283 // function. To support the 'before' case we have to add all |
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284 // existing effects to the chain. Supporting the 'after' case is up |
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285 // to the widget. However we can only support effects that are in a |
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286 // chain, keeping single effects is not possible due to ownership |
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287 // issues. |
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288 HbVgChainedEffect *c = qobject_cast<HbVgChainedEffect *>(mTargetItem->graphicsEffect()); |
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289 // Effects set by another HbEffectGroup instance must be ignored |
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290 // here, those should go away because they probably would not work |
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291 // well together anyway. |
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292 if (c && c->objectName().compare(QLatin1String(effect_fw_marker))) { |
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293 QList<HbVgEffect *> effects = c->takeAll(); |
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294 HbVgChainedEffect *newChain = vgEffect(); |
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295 foreach (HbVgEffect *effect, effects) { |
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296 newChain->add(effect); |
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297 } |
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298 } |
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299 } |
274 vgEffect()->install(mTargetItem); |
300 vgEffect()->install(mTargetItem); |
275 mVgEffectActivated = true; |
301 mVgEffectActivated = true; |
276 } |
302 } |
277 } |
303 } |
278 |
304 |