2 * Copyright (c) 2023 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include "image-view-impl.h"
22 #include <dali/devel-api/scripting/scripting.h>
23 #include <dali/public-api/math/math-utils.h>
24 #include <dali/public-api/object/type-registry-helper.h>
25 #include <dali/public-api/object/type-registry.h>
28 #include <dali-toolkit/devel-api/controls/control-devel.h>
29 #include <dali-toolkit/devel-api/visual-factory/visual-factory.h>
30 #include <dali-toolkit/devel-api/visuals/visual-actions-devel.h>
31 #include <dali-toolkit/internal/controls/control/control-data-impl.h>
32 #include <dali-toolkit/internal/visuals/visual-base-data-impl.h>
33 #include <dali-toolkit/internal/visuals/visual-base-impl.h>
34 #include <dali-toolkit/internal/visuals/visual-string-constants.h>
35 #include <dali-toolkit/public-api/controls/image-view/image-view.h>
36 #include <dali-toolkit/public-api/visuals/visual-properties.h>
46 const Vector4 FULL_TEXTURE_RECT(0.f, 0.f, 1.f, 1.f);
48 constexpr float FULL_OPACITY = 1.0f;
49 constexpr float LOW_OPACITY = 0.2f;
53 return Toolkit::ImageView::New();
56 // Setup properties, signals and actions using the type-registry.
57 DALI_TYPE_REGISTRATION_BEGIN(Toolkit::ImageView, Toolkit::Control, Create);
58 DALI_PROPERTY_REGISTRATION(Toolkit, ImageView, "image", MAP, IMAGE)
59 DALI_PROPERTY_REGISTRATION(Toolkit, ImageView, "preMultipliedAlpha", BOOLEAN, PRE_MULTIPLIED_ALPHA)
60 DALI_PROPERTY_REGISTRATION(Toolkit, ImageView, "placeholderImage", STRING, PLACEHOLDER_IMAGE)
61 DALI_PROPERTY_REGISTRATION(Toolkit, ImageView, "enableTransitionEffect", BOOLEAN, ENABLE_TRANSITION_EFFECT)
62 DALI_ANIMATABLE_PROPERTY_REGISTRATION_WITH_DEFAULT(Toolkit, ImageView, "pixelArea", Vector4(0.f, 0.f, 1.f, 1.f), PIXEL_AREA)
63 DALI_TYPE_REGISTRATION_END()
65 } // anonymous namespace
69 ImageView::ImageView(ControlBehaviour additionalBehaviour)
70 : Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT | additionalBehaviour)),
72 mTransitionTargetAlpha(FULL_OPACITY),
73 mImageVisualPaddingSetByTransform(false),
74 mImageViewPixelAreaSetByFittingMode(false),
75 mTransitionEffect(false)
79 ImageView::~ImageView()
83 Toolkit::ImageView ImageView::New(ControlBehaviour additionalBehaviour)
85 ImageView* impl = new ImageView(additionalBehaviour);
87 Toolkit::ImageView handle = Toolkit::ImageView(*impl);
89 // Second-phase init of the implementation
90 // This can only be done after the CustomActor connection has been made...
96 /////////////////////////////////////////////////////////////
98 void ImageView::OnInitialize()
100 // ImageView can relayout in the OnImageReady, alternative to a signal would be to have a upcall from the Control to ImageView
101 Dali::Toolkit::Control handle(GetOwner());
102 handle.ResourceReadySignal().Connect(this, &ImageView::OnResourceReady);
104 Self().SetProperty(DevelControl::Property::ACCESSIBILITY_ROLE, Dali::Accessibility::Role::IMAGE);
107 void ImageView::SetImage(const Property::Map& map)
109 DALI_LOG_ERROR("tscholb : SetImage(map) !!! \n");
110 if(mTransitionEffect && mVisual)
112 // Clear previous transition effect if it is playing
115 if(mTransitionAnimation)
117 if(mTransitionAnimation.GetState() == Animation::PLAYING)
119 mTransitionAnimation.Stop();
120 ClearTransitionAnimation();
125 // Enable transition effect for previous visual.
126 // This previous visual will be deleted when transition effect is done.
127 Internal::Control::Impl& controlDataImpl = Internal::Control::Impl::Get(*this);
128 controlDataImpl.EnableReadyTransitionOverriden(mVisual, true);
129 mPreviousVisual = mVisual;
132 // Comparing a property map is too expensive so just creating a new visual
136 // keep alpha for transition effect
137 if(mTransitionEffect)
139 float alpha = FULL_OPACITY;
140 Property::Value* alphaValue = map.Find(Toolkit::Visual::Property::OPACITY);
141 if(alphaValue && alphaValue->Get(alpha))
143 mTransitionTargetAlpha = alpha;
149 ShowPlaceholderImage();
152 Toolkit::Visual::Base visual = Toolkit::VisualFactory::Get().CreateVisual(mPropertyMap);
155 // Don't set mVisual until it is ready and shown. Getters will still use current visual.
161 if(!mShaderMap.Empty())
163 Internal::Visual::Base& visualImpl = Toolkit::GetImplementation(visual);
164 visualImpl.SetCustomShader(mShaderMap);
167 DevelControl::RegisterVisual(*this, Toolkit::ImageView::Property::IMAGE, visual);
171 // Unregister the exsiting visual
172 DevelControl::UnregisterVisual(*this, Toolkit::ImageView::Property::IMAGE);
174 // Trigger a size negotiation request that may be needed when unregistering a visual.
178 // Signal that a Relayout may be needed
181 void ImageView::SetImage(const std::string& url, ImageDimensions size)
183 DALI_LOG_ERROR("tscholb : SetImage !!! \n");
184 if(mTransitionEffect && mVisual)
186 // Clear previous transition effect if it is playing
189 if(mTransitionAnimation)
191 if(mTransitionAnimation.GetState() == Animation::PLAYING)
193 mTransitionAnimation.Stop();
194 ClearTransitionAnimation();
199 // Enable transition effect for previous visual.
200 // This previous visual will be deleted when transition effect is done.
201 Internal::Control::Impl& controlDataImpl = Internal::Control::Impl::Get(*this);
202 controlDataImpl.EnableReadyTransitionOverriden(mVisual, true);
203 mPreviousVisual = mVisual;
206 // Don't bother comparing if we had a visual previously, just drop old visual and create new one
209 mPropertyMap.Clear();
213 ShowPlaceholderImage();
216 // Don't set mVisual until it is ready and shown. Getters will still use current visual.
217 Toolkit::Visual::Base visual = Toolkit::VisualFactory::Get().CreateVisual(url, size);
225 if(!mShaderMap.Empty())
227 Internal::Visual::Base& visualImpl = Toolkit::GetImplementation(visual);
228 visualImpl.SetCustomShader(mShaderMap);
231 DevelControl::RegisterVisual(*this, Toolkit::ImageView::Property::IMAGE, visual);
235 // Unregister the exsiting visual
236 DevelControl::UnregisterVisual(*this, Toolkit::ImageView::Property::IMAGE);
238 // Trigger a size negotiation request that may be needed when unregistering a visual.
243 Dali::Toolkit::Control handle(GetOwner());
244 auto check1 = handle.GetVisualResourceStatus(Toolkit::ImageView::Property::IMAGE);
245 auto check2 = handle.GetVisualResourceStatus(Toolkit::ImageView::Property::PLACEHOLDER_IMAGE);
246 DALI_LOG_ERROR("tscholb : Resource status check >> %d,%d \n", check1, check2);
248 // Signal that a Relayout may be needed
251 void ImageView::ClearImageVisual()
253 // Clear cached properties
254 mPropertyMap.Clear();
258 // Unregister the exsiting visual
259 DevelControl::UnregisterVisual(*this, Toolkit::ImageView::Property::IMAGE);
261 // Trigger a size negotiation request that may be needed when unregistering a visual.
265 void ImageView::EnablePreMultipliedAlpha(bool preMultipled)
269 Toolkit::GetImplementation(mVisual).EnablePreMultipliedAlpha(preMultipled);
273 bool ImageView::IsPreMultipliedAlphaEnabled() const
277 return Toolkit::GetImplementation(mVisual).IsPreMultipliedAlphaEnabled();
282 void ImageView::SetDepthIndex(int depthIndex)
286 mVisual.SetDepthIndex(depthIndex);
290 void ImageView::SetPlaceholderUrl(const std::string& url)
292 mPlaceholderUrl = url;
295 mPlaceholderVisual.Reset();
296 CreatePlaceholderImage();
300 // Clear current placeholder image
301 Toolkit::Visual::Base visual = DevelControl::GetVisual(*this, Toolkit::ImageView::Property::PLACEHOLDER_IMAGE);
304 DevelControl::UnregisterVisual(*this, Toolkit::ImageView::Property::PLACEHOLDER_IMAGE);
307 mPlaceholderVisual.Reset();
308 mPlaceholderUrl = url;
312 std::string ImageView::GetPlaceholderUrl() const
314 return mPlaceholderUrl;
317 void ImageView::EnableTransitionEffect(bool effectEnable)
319 mTransitionEffect = effectEnable;
322 bool ImageView::IsTransitionEffectEnabled() const
324 return mTransitionEffect;
327 Vector3 ImageView::GetNaturalSize()
331 Vector2 rendererNaturalSize;
332 mVisual.GetNaturalSize(rendererNaturalSize);
335 padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
337 rendererNaturalSize.width += (padding.start + padding.end);
338 rendererNaturalSize.height += (padding.top + padding.bottom);
339 return Vector3(rendererNaturalSize);
342 // if no visual then use Control's natural size
343 return Control::GetNaturalSize();
346 float ImageView::GetHeightForWidth(float width)
349 padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
353 return mVisual.GetHeightForWidth(width) + padding.top + padding.bottom;
357 return Control::GetHeightForWidth(width) + padding.top + padding.bottom;
361 float ImageView::GetWidthForHeight(float height)
364 padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
368 return mVisual.GetWidthForHeight(height) + padding.start + padding.end;
372 return Control::GetWidthForHeight(height) + padding.start + padding.end;
376 void ImageView::OnRelayout(const Vector2& size, RelayoutContainer& container)
378 Control::OnRelayout(size, container);
381 Property::Map transformMap = Property::Map();
383 Extents padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
385 bool zeroPadding = (padding == Extents());
387 Dali::LayoutDirection::Type layoutDirection = static_cast<Dali::LayoutDirection::Type>(
388 Self().GetProperty(Dali::Actor::Property::LAYOUT_DIRECTION).Get<int>());
389 if(Dali::LayoutDirection::RIGHT_TO_LEFT == layoutDirection)
391 std::swap(padding.start, padding.end);
394 // remove padding from the size to know how much is left for the visual
395 Vector2 finalSize = size - Vector2(padding.start + padding.end, padding.top + padding.bottom);
396 Vector2 finalOffset = Vector2(padding.start, padding.top);
398 ApplyFittingMode(finalSize, finalOffset, zeroPadding, transformMap);
400 mVisual.SetTransformAndSize(transformMap, size);
402 // mVisual is not updated util the resource is ready in the case of visual replacement.
403 // in this case, the Property Map must be initialized so that the previous value is not reused.
404 // after mVisual is updated, the correct value will be reset.
405 Toolkit::Visual::Base visual = DevelControl::GetVisual(*this, Toolkit::ImageView::Property::IMAGE);
406 if(visual && visual != mVisual)
408 visual.SetTransformAndSize(Property::Map(), size);
413 void ImageView::OnCreateTransitions(std::vector<std::pair<Dali::Property::Index, Dali::Property::Map>>& sourceProperties,
414 std::vector<std::pair<Dali::Property::Index, Dali::Property::Map>>& destinationProperties,
415 Dali::Toolkit::Control source,
416 Dali::Toolkit::Control destination)
418 // Retrieves image properties to be transitioned.
419 Dali::Property::Map imageSourcePropertyMap, imageDestinationPropertyMap;
420 MakeVisualTransition(imageSourcePropertyMap, imageDestinationPropertyMap, source, destination, Toolkit::ImageView::Property::IMAGE);
421 if(imageSourcePropertyMap.Count() > 0)
423 sourceProperties.push_back(std::pair<Dali::Property::Index, Dali::Property::Map>(Toolkit::ImageView::Property::IMAGE, imageSourcePropertyMap));
424 destinationProperties.push_back(std::pair<Dali::Property::Index, Dali::Property::Map>(Toolkit::ImageView::Property::IMAGE, imageDestinationPropertyMap));
428 void ImageView::OnUpdateVisualProperties(const std::vector<std::pair<Dali::Property::Index, Dali::Property::Map>>& properties)
430 Toolkit::Visual::Base visual = DevelControl::GetVisual(*this, Toolkit::ImageView::Property::IMAGE);
433 Dali::Toolkit::Control handle(GetOwner());
435 for(auto&& data : properties)
437 if(data.first == Toolkit::ImageView::Property::IMAGE)
439 DevelControl::DoAction(handle, Toolkit::ImageView::Property::IMAGE, DevelVisual::Action::UPDATE_PROPERTY, data.second);
446 void ImageView::OnResourceReady(Toolkit::Control control)
448 DALI_LOG_ERROR("tscholb : OnResourceReady !!! \n");
449 // In case of placeholder, we need to skip this call.
450 // TODO: In case of placeholder, it needs to be modified not to call OnResourceReady()
451 if(control.GetVisualResourceStatus(Toolkit::ImageView::Property::IMAGE) != Toolkit::Visual::ResourceStatus::READY)
453 DALI_LOG_ERROR("tscholb : OnResourceReady() is called, but SKIP \n");
457 // Do transition effect if need.
458 if(mTransitionEffect)
460 // TODO: Consider about placeholder image is loaded failed
461 Toolkit::Visual::Base placeholderVisual = DevelControl::GetVisual(*this, Toolkit::ImageView::Property::PLACEHOLDER_IMAGE);
462 if(!placeholderVisual || control.GetVisualResourceStatus(Toolkit::ImageView::Property::PLACEHOLDER_IMAGE) == Toolkit::Visual::ResourceStatus::READY)
464 // when placeholder is disabled or ready placeholder and image, we need to transition effect
465 DALI_LOG_ERROR("tscholb : Call TransitionEffect \n");
466 TransitionImageWithEffect();
470 DALI_LOG_ERROR("tscholb : Call ClearTransitionAnimation \n");
471 ClearTransitionAnimation();
476 // we don't need placeholder anymore because visual is replaced. so hide placeholder.
477 DALI_LOG_ERROR("tscholb : transition effect is DISABLE \n");
478 HidePlaceholderImage();
481 // Visual ready so update visual attached to this ImageView, following call to RelayoutRequest will use this visual.
482 mVisual = DevelControl::GetVisual(*this, Toolkit::ImageView::Property::IMAGE);
483 // Signal that a Relayout may be needed
486 void ImageView::SetTransformMapForFittingMode(Vector2 finalSize, Vector2 naturalSize, Vector2 finalOffset, Visual::FittingMode fittingMode, Property::Map& transformMap)
490 case Visual::FittingMode::FIT_KEEP_ASPECT_RATIO:
492 auto availableVisualSize = finalSize;
494 // scale to fit the padded area
495 finalSize = naturalSize * std::min((!Dali::EqualsZero(naturalSize.width) ? (availableVisualSize.width / naturalSize.width) : 0),
496 (!Dali::EqualsZero(naturalSize.height) ? (availableVisualSize.height / naturalSize.height) : 0));
498 // calculate final offset within the padded area
499 finalOffset += (availableVisualSize - finalSize) * .5f;
501 // populate the transform map
502 transformMap.Add(Toolkit::Visual::Transform::Property::OFFSET, finalOffset)
503 .Add(Toolkit::Visual::Transform::Property::SIZE, finalSize);
506 case Visual::FittingMode::OVER_FIT_KEEP_ASPECT_RATIO:
508 mImageViewPixelAreaSetByFittingMode = true;
509 auto availableVisualSize = finalSize;
510 finalSize = naturalSize * std::max((!Dali::EqualsZero(naturalSize.width) ? (availableVisualSize.width / naturalSize.width) : 0.0f),
511 (!Dali::EqualsZero(naturalSize.height) ? (availableVisualSize.height / naturalSize.height) : 0.0f));
513 auto originalOffset = finalOffset;
514 finalOffset += (availableVisualSize - finalSize) * .5f;
516 float x = abs((availableVisualSize.width - finalSize.width) / finalSize.width) * .5f;
517 float y = abs((availableVisualSize.height - finalSize.height) / finalSize.height) * .5f;
518 float widthRatio = 1.f - abs((availableVisualSize.width - finalSize.width) / finalSize.width);
519 float heightRatio = 1.f - abs((availableVisualSize.height - finalSize.height) / finalSize.height);
520 Vector4 pixelArea = Vector4(x, y, widthRatio, heightRatio);
521 Self().SetProperty(Toolkit::ImageView::Property::PIXEL_AREA, pixelArea);
523 // populate the transform map
524 transformMap.Add(Toolkit::Visual::Transform::Property::OFFSET, originalOffset)
525 .Add(Toolkit::Visual::Transform::Property::SIZE, availableVisualSize);
528 case Visual::FittingMode::CENTER:
530 auto availableVisualSize = finalSize;
531 if(availableVisualSize.width > naturalSize.width && availableVisualSize.height > naturalSize.height)
533 finalSize = naturalSize;
537 finalSize = naturalSize * std::min((!Dali::EqualsZero(naturalSize.width) ? (availableVisualSize.width / naturalSize.width) : 0.0f),
538 (!Dali::EqualsZero(naturalSize.height) ? (availableVisualSize.height / naturalSize.height) : 0.0f));
541 finalOffset += (availableVisualSize - finalSize) * .5f;
543 // populate the transform map
544 transformMap.Add(Toolkit::Visual::Transform::Property::OFFSET, finalOffset)
545 .Add(Toolkit::Visual::Transform::Property::SIZE, finalSize);
548 case Visual::FittingMode::FILL:
550 transformMap.Add(Toolkit::Visual::Transform::Property::OFFSET, finalOffset)
551 .Add(Toolkit::Visual::Transform::Property::SIZE, finalSize);
554 case Visual::FittingMode::FIT_WIDTH:
555 case Visual::FittingMode::FIT_HEIGHT:
557 // This FittingMode already converted
563 void ImageView::ApplyFittingMode(Vector2 finalSize, Vector2 finalOffset, bool zeroPadding, Property::Map& transformMap)
565 Visual::FittingMode fittingMode = Toolkit::GetImplementation(mVisual).GetFittingMode();
567 // Reset PIXEL_AREA after using OVER_FIT_KEEP_ASPECT_RATIO
568 if(mImageViewPixelAreaSetByFittingMode)
570 Self().SetProperty(Toolkit::ImageView::Property::PIXEL_AREA, FULL_TEXTURE_RECT);
571 mImageViewPixelAreaSetByFittingMode = false;
574 if((!zeroPadding) || // If padding is not zero
575 (fittingMode != Visual::FittingMode::FILL))
577 mImageVisualPaddingSetByTransform = true;
580 // NaturalSize will not be used for FILL fitting mode, which is default.
581 // Skip GetNaturalSize
582 if(fittingMode != Visual::FittingMode::FILL)
584 mVisual.GetNaturalSize(naturalSize);
587 // If FittingMode use FIT_WIDTH or FIT_HEIGTH, it need to change proper fittingMode
588 if(fittingMode == Visual::FittingMode::FIT_WIDTH)
590 fittingMode = (finalSize.height / naturalSize.height) < (finalSize.width / naturalSize.width) ? Visual::FittingMode::OVER_FIT_KEEP_ASPECT_RATIO : Visual::FittingMode::FIT_KEEP_ASPECT_RATIO;
592 else if(fittingMode == Visual::FittingMode::FIT_HEIGHT)
594 fittingMode = (finalSize.height / naturalSize.height) < (finalSize.width / naturalSize.width) ? Visual::FittingMode::FIT_KEEP_ASPECT_RATIO : Visual::FittingMode::OVER_FIT_KEEP_ASPECT_RATIO;
597 SetTransformMapForFittingMode(finalSize, naturalSize, finalOffset, fittingMode, transformMap);
599 // Set extra value for applying transformMap
600 transformMap.Add(Toolkit::Visual::Transform::Property::OFFSET_POLICY,
601 Vector2(Toolkit::Visual::Transform::Policy::ABSOLUTE, Toolkit::Visual::Transform::Policy::ABSOLUTE))
602 .Add(Toolkit::Visual::Transform::Property::ORIGIN, Toolkit::Align::TOP_BEGIN)
603 .Add(Toolkit::Visual::Transform::Property::ANCHOR_POINT, Toolkit::Align::TOP_BEGIN)
604 .Add(Toolkit::Visual::Transform::Property::SIZE_POLICY,
605 Vector2(Toolkit::Visual::Transform::Policy::ABSOLUTE, Toolkit::Visual::Transform::Policy::ABSOLUTE));
607 else if(mImageVisualPaddingSetByTransform && zeroPadding) // Reset offset to zero only if padding applied previously
609 mImageVisualPaddingSetByTransform = false;
610 // Reset the transform map
611 transformMap.Add(Toolkit::Visual::Transform::Property::OFFSET, Vector2::ZERO)
612 .Add(Toolkit::Visual::Transform::Property::OFFSET_POLICY,
613 Vector2(Toolkit::Visual::Transform::Policy::RELATIVE, Toolkit::Visual::Transform::Policy::RELATIVE))
614 .Add(Toolkit::Visual::Transform::Property::SIZE, Vector2::ONE)
615 .Add(Toolkit::Visual::Transform::Property::SIZE_POLICY,
616 Vector2(Toolkit::Visual::Transform::Policy::RELATIVE, Toolkit::Visual::Transform::Policy::RELATIVE));
620 void ImageView::CreatePlaceholderImage()
622 Property::Map propertyMap;
623 propertyMap.Insert(Toolkit::Visual::Property::TYPE, Toolkit::Visual::IMAGE);
624 propertyMap.Insert(Toolkit::ImageVisual::Property::URL, mPlaceholderUrl);
625 //propertyMap.Insert(Toolkit::ImageVisual::Property::LOAD_POLICY, Toolkit::ImageVisual::LoadPolicy::IMMEDIATE); // TODO: need to enable this property
626 propertyMap.Insert(Toolkit::ImageVisual::Property::RELEASE_POLICY, Toolkit::ImageVisual::ReleasePolicy::DESTROYED);
627 mPlaceholderVisual = Toolkit::VisualFactory::Get().CreateVisual(propertyMap);
628 if(mPlaceholderVisual)
630 mPlaceholderVisual.SetName("placeholder");
634 DevelControl::UnregisterVisual(*this, Toolkit::ImageView::Property::PLACEHOLDER_IMAGE);
635 mPlaceholderVisual.Reset();
639 void ImageView::ShowPlaceholderImage()
641 if(mPlaceholderVisual)
643 DevelControl::RegisterVisual(*this, Toolkit::ImageView::Property::PLACEHOLDER_IMAGE, mPlaceholderVisual, false);
645 Toolkit::GetImplementation(mPlaceholderVisual).SetOnScene(self);
649 void ImageView::HidePlaceholderImage()
651 if(mPlaceholderVisual)
653 DevelControl::UnregisterVisual(*this, Toolkit::ImageView::Property::PLACEHOLDER_IMAGE);
657 Toolkit::GetImplementation(mPlaceholderVisual).SetOffScene(self);
661 void ImageView::TransitionImageWithEffect()
663 Toolkit::ImageView handle = Toolkit::ImageView(GetOwner());
667 mTransitionAnimation = Animation::New(1.5f);
668 mTransitionAnimation.SetEndAction(Animation::EndAction::DISCARD);
669 float destinationAlpha = (mTransitionTargetAlpha > LOW_OPACITY) ? mTransitionTargetAlpha : LOW_OPACITY;
671 if(mPreviousVisual) // Transition previous image
673 DALI_LOG_ERROR("tscholb : mPreviousVisual !!! \n");
674 Dali::KeyFrames fadeoutKeyFrames = Dali::KeyFrames::New();
675 fadeoutKeyFrames.Add(0.0f, destinationAlpha);
676 fadeoutKeyFrames.Add(1.0f, LOW_OPACITY);
677 Internal::Visual::Base& visualImpl = Toolkit::GetImplementation(mPreviousVisual);
678 mTransitionAnimation.AnimateBetween(visualImpl.GetPropertyObject(Toolkit::Visual::Property::OPACITY), fadeoutKeyFrames);
680 else if(mPlaceholderVisual) // Transition placeholder
682 DALI_LOG_ERROR("tscholb : mPlaceholderVisual !!! \n");
683 Dali::KeyFrames fadeoutKeyFrames = Dali::KeyFrames::New();
684 fadeoutKeyFrames.Add(0.0f, destinationAlpha);
685 fadeoutKeyFrames.Add(1.0f, LOW_OPACITY);
686 Internal::Visual::Base& visualImpl = Toolkit::GetImplementation(mPlaceholderVisual);
687 mTransitionAnimation.AnimateBetween(visualImpl.GetPropertyObject(Toolkit::Visual::Property::OPACITY), fadeoutKeyFrames);
690 // Transition current image
691 Toolkit::Visual::Base imageVisual = DevelControl::GetVisual(*this, Toolkit::ImageView::Property::IMAGE);
694 DALI_LOG_ERROR("tscholb : imageVisual !!! \n");
695 Dali::KeyFrames fadeinKeyFrames = Dali::KeyFrames::New();
696 fadeinKeyFrames.Add(0.0f, LOW_OPACITY);
697 fadeinKeyFrames.Add(1.0f, destinationAlpha);
698 mTransitionAnimation.AnimateBetween(DevelControl::GetVisualProperty(handle, Toolkit::ImageView::Property::IMAGE, Toolkit::Visual::Property::OPACITY), fadeinKeyFrames);
701 // Play transition animation
702 mTransitionAnimation.FinishedSignal().Connect(this, &ImageView::OnTransitionAnimationFinishedCallback);
703 mTransitionAnimation.Play();
707 void ImageView::ClearTransitionAnimation()
710 HidePlaceholderImage();
712 // Clear PreviousVisual
716 Internal::Control::Impl& controlDataImpl = Internal::Control::Impl::Get(*this);
717 controlDataImpl.EnableReadyTransitionOverriden(mVisual, false);
718 Toolkit::GetImplementation(mPreviousVisual).SetOffScene(self);
719 mPreviousVisual.Reset();
722 if(mTransitionAnimation)
724 mTransitionAnimation.FinishedSignal().Disconnect(this, &ImageView::OnTransitionAnimationFinishedCallback);
725 mTransitionAnimation.Clear();
729 ///////////////////////////////////////////////////////////
734 void ImageView::SetProperty(BaseObject* object, Property::Index index, const Property::Value& value)
736 Toolkit::ImageView imageView = Toolkit::ImageView::DownCast(Dali::BaseHandle(object));
740 ImageView& impl = GetImpl(imageView);
743 case Toolkit::ImageView::Property::IMAGE:
745 std::string imageUrl;
746 const Property::Map* map;
747 if(value.Get(imageUrl))
749 impl.SetImage(imageUrl, ImageDimensions());
751 // if its not a string then get a Property::Map from the property if possible.
754 map = value.GetMap();
757 // the property map is emtpy map. Unregister visual.
758 if(DALI_UNLIKELY(map->Count() == 0u))
760 impl.ClearImageVisual();
764 Property::Value* shaderValue = map->Find(Toolkit::Visual::Property::SHADER, CUSTOM_SHADER);
765 // set image only if property map contains image information other than custom shader
766 if(map->Count() > 1u || !shaderValue)
770 // the property map contains only the custom shader
771 else if((map->Count() == 1u) && (shaderValue))
773 Property::Map* shaderMap = shaderValue->GetMap();
776 impl.mShaderMap = *shaderMap;
778 if(!impl.mUrl.empty())
780 impl.SetImage(impl.mUrl, impl.mImageSize);
782 else if(!impl.mPropertyMap.Empty())
784 impl.SetImage(impl.mPropertyMap);
792 // invalid property value comes. Unregister visual.
793 impl.ClearImageVisual();
799 case Toolkit::ImageView::Property::PRE_MULTIPLIED_ALPHA:
804 impl.EnablePreMultipliedAlpha(isPre);
809 case Toolkit::ImageView::Property::PLACEHOLDER_IMAGE:
811 std::string placeholderUrl;
812 if(value.Get(placeholderUrl))
814 impl.SetPlaceholderUrl(placeholderUrl);
819 case Toolkit::ImageView::Property::ENABLE_TRANSITION_EFFECT:
821 bool transitionEffect;
822 if(value.Get(transitionEffect))
824 impl.EnableTransitionEffect(transitionEffect);
832 Property::Value ImageView::GetProperty(BaseObject* object, Property::Index propertyIndex)
834 Property::Value value;
836 Toolkit::ImageView imageview = Toolkit::ImageView::DownCast(Dali::BaseHandle(object));
840 ImageView& impl = GetImpl(imageview);
841 switch(propertyIndex)
843 case Toolkit::ImageView::Property::IMAGE:
845 if(!impl.mUrl.empty())
852 Toolkit::Visual::Base visual = DevelControl::GetVisual(impl, Toolkit::ImageView::Property::IMAGE);
855 visual.CreatePropertyMap(map);
862 case Toolkit::ImageView::Property::PRE_MULTIPLIED_ALPHA:
864 value = impl.IsPreMultipliedAlphaEnabled();
868 case Toolkit::ImageView::Property::PLACEHOLDER_IMAGE:
870 value = impl.GetPlaceholderUrl();
874 case Toolkit::ImageView::Property::ENABLE_TRANSITION_EFFECT:
876 value = impl.IsTransitionEffectEnabled();
885 void ImageView::OnTransitionAnimationFinishedCallback(Animation& animation)
887 ClearTransitionAnimation();
890 } // namespace Internal
891 } // namespace Toolkit