/*
- * Copyright (c) 2019 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2023 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include "image-view-impl.h"
// EXTERNAL INCLUDES
-#include <dali/public-api/images/resource-image.h>
-#include <dali/public-api/object/type-registry.h>
-#include <dali/public-api/object/type-registry-helper.h>
#include <dali/devel-api/scripting/scripting.h>
+#include <dali/public-api/math/math-utils.h>
+#include <dali/public-api/object/type-registry-helper.h>
+#include <dali/public-api/object/type-registry.h>
// INTERNAL INCLUDES
-#include <dali-toolkit/public-api/controls/image-view/image-view.h>
#include <dali-toolkit/devel-api/controls/control-devel.h>
-#include <dali-toolkit/public-api/visuals/visual-properties.h>
#include <dali-toolkit/devel-api/visual-factory/visual-factory.h>
-#include <dali-toolkit/internal/visuals/visual-string-constants.h>
-#include <dali-toolkit/internal/visuals/visual-base-impl.h>
+#include <dali-toolkit/devel-api/visuals/visual-actions-devel.h>
+#include <dali-toolkit/internal/controls/control/control-data-impl.h>
#include <dali-toolkit/internal/visuals/visual-base-data-impl.h>
+#include <dali-toolkit/internal/visuals/visual-base-impl.h>
+#include <dali-toolkit/internal/visuals/visual-string-constants.h>
+#include <dali-toolkit/public-api/controls/image-view/image-view.h>
+#include <dali-toolkit/public-api/visuals/visual-properties.h>
namespace Dali
{
-
namespace Toolkit
{
-
namespace Internal
{
-
namespace
{
+const Vector4 FULL_TEXTURE_RECT(0.f, 0.f, 1.f, 1.f);
+
+constexpr float FULL_OPACITY = 1.0f;
+constexpr float LOW_OPACITY = 0.2f;
+constexpr float TRANSITION_EFFECT_SPEED = 0.3f;
+
+constexpr int PLACEHOLDER_DEPTH_INDEX = -2;
+constexpr int PREVIOUS_VISUAL_DEPTH_INDEX = -1;
+constexpr int CURRENT_VISUAL_DEPTH_INDEX = 0;
BaseHandle Create()
{
}
// Setup properties, signals and actions using the type-registry.
-DALI_TYPE_REGISTRATION_BEGIN( Toolkit::ImageView, Toolkit::Control, Create );
-DALI_PROPERTY_REGISTRATION( Toolkit, ImageView, "resourceUrl", STRING, RESOURCE_URL )
-DALI_PROPERTY_REGISTRATION( Toolkit, ImageView, "image", MAP, IMAGE )
-DALI_PROPERTY_REGISTRATION( Toolkit, ImageView, "preMultipliedAlpha", BOOLEAN, PRE_MULTIPLIED_ALPHA )
-
-DALI_ANIMATABLE_PROPERTY_REGISTRATION_WITH_DEFAULT( Toolkit, ImageView, "pixelArea", Vector4(0.f, 0.f, 1.f, 1.f), PIXEL_AREA )
+DALI_TYPE_REGISTRATION_BEGIN(Toolkit::ImageView, Toolkit::Control, Create);
+DALI_PROPERTY_REGISTRATION(Toolkit, ImageView, "image", MAP, IMAGE)
+DALI_PROPERTY_REGISTRATION(Toolkit, ImageView, "preMultipliedAlpha", BOOLEAN, PRE_MULTIPLIED_ALPHA)
+DALI_PROPERTY_REGISTRATION(Toolkit, ImageView, "placeholderImage", STRING, PLACEHOLDER_IMAGE)
+DALI_PROPERTY_REGISTRATION(Toolkit, ImageView, "enableTransitionEffect", BOOLEAN, ENABLE_TRANSITION_EFFECT)
+DALI_ANIMATABLE_PROPERTY_REGISTRATION_WITH_DEFAULT(Toolkit, ImageView, "pixelArea", Vector4(0.f, 0.f, 1.f, 1.f), PIXEL_AREA)
DALI_TYPE_REGISTRATION_END()
} // anonymous namespace
using namespace Dali;
-ImageView::ImageView()
-: Control( ControlBehaviour( CONTROL_BEHAVIOUR_DEFAULT ) ),
+ImageView::ImageView(ControlBehaviour additionalBehaviour)
+: Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT | additionalBehaviour)),
mImageSize(),
- mImageVisualPaddingSetByTransform( false )
+ mTransitionTargetAlpha(FULL_OPACITY),
+ mImageVisualPaddingSetByTransform(false),
+ mImageViewPixelAreaSetByFittingMode(false),
+ mTransitionEffect(false),
+ mNeedLazyFittingMode(false),
+ mImageReplaced(false)
{
}
{
}
-Toolkit::ImageView ImageView::New()
+Toolkit::ImageView ImageView::New(ControlBehaviour additionalBehaviour)
{
- ImageView* impl = new ImageView();
+ ImageView* impl = new ImageView(additionalBehaviour);
- Toolkit::ImageView handle = Toolkit::ImageView( *impl );
+ Toolkit::ImageView handle = Toolkit::ImageView(*impl);
// Second-phase init of the implementation
// This can only be done after the CustomActor connection has been made...
void ImageView::OnInitialize()
{
// ImageView can relayout in the OnImageReady, alternative to a signal would be to have a upcall from the Control to ImageView
- Dali::Toolkit::Control handle( GetOwner() );
- handle.ResourceReadySignal().Connect( this, &ImageView::OnResourceReady );
+ Dali::Toolkit::Control handle(GetOwner());
+ handle.ResourceReadySignal().Connect(this, &ImageView::OnResourceReady);
+
+ Self().SetProperty(DevelControl::Property::ACCESSIBILITY_ROLE, Dali::Accessibility::Role::IMAGE);
}
-void ImageView::SetImage( Image image )
+void ImageView::SetImage(const Property::Map& map)
{
- // Don't bother comparing if we had a visual previously, just drop old visual and create new one
- mImage = image;
- mUrl.clear();
- mPropertyMap.Clear();
-
- Toolkit::Visual::Base visual = Toolkit::VisualFactory::Get().CreateVisual( image );
- if( visual )
+ if(mTransitionEffect && mVisual)
{
- if( !mVisual )
+ // Clear previous transition effect if it is playing
+ if(mPreviousVisual)
{
- mVisual = visual;
- }
-
- if( !mShaderMap.Empty() )
- {
- Internal::Visual::Base& visualImpl = Toolkit::GetImplementation( visual );
- visualImpl.SetCustomShader( mShaderMap );
+ if(mTransitionAnimation)
+ {
+ if(mTransitionAnimation.GetState() == Animation::PLAYING)
+ {
+ // Hide placeholder
+ HidePlaceholderImage();
+ ClearTransitionAnimation();
+ }
+ }
}
- DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, visual );
- }
- else
- {
- // Unregister the existing visual
- DevelControl::UnregisterVisual( *this, Toolkit::ImageView::Property::IMAGE );
-
- // Trigger a size negotiation request that may be needed when unregistering a visual.
- RelayoutRequest();
+ // Enable transition effect for previous visual.
+ // This previous visual will be deleted when transition effect is done.
+ Internal::Control::Impl& controlDataImpl = Internal::Control::Impl::Get(*this);
+ controlDataImpl.EnableReadyTransitionOverriden(mVisual, true);
+ mPreviousVisual = mVisual;
}
- // Signal that a Relayout may be needed
-}
-
-void ImageView::SetImage( const Property::Map& map )
-{
// Comparing a property map is too expensive so just creating a new visual
mPropertyMap = map;
mUrl.clear();
- mImage.Reset();
- Toolkit::Visual::Base visual = Toolkit::VisualFactory::Get().CreateVisual( mPropertyMap );
- if( visual )
+ mImageReplaced = true;
+
+ // keep alpha for transition effect
+ if(mTransitionEffect)
+ {
+ float alpha = FULL_OPACITY;
+ Property::Value* alphaValue = map.Find(Toolkit::Visual::Property::OPACITY);
+ if(alphaValue && alphaValue->Get(alpha))
+ {
+ mTransitionTargetAlpha = alpha;
+ }
+ }
+
+ if(!mVisual)
+ {
+ ShowPlaceholderImage();
+ }
+
+ Toolkit::Visual::Base visual = Toolkit::VisualFactory::Get().CreateVisual(mPropertyMap);
+ if(visual)
{
// Don't set mVisual until it is ready and shown. Getters will still use current visual.
- if( !mVisual )
+ if(!mVisual)
{
mVisual = visual;
}
- if( !mShaderMap.Empty() )
+ if(!mShaderMap.Empty())
{
- Internal::Visual::Base& visualImpl = Toolkit::GetImplementation( visual );
- visualImpl.SetCustomShader( mShaderMap );
+ Internal::Visual::Base& visualImpl = Toolkit::GetImplementation(visual);
+ visualImpl.SetCustomShader(mShaderMap);
}
- DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, visual );
+ DevelControl::RegisterVisual(*this, Toolkit::ImageView::Property::IMAGE, visual);
}
else
{
// Unregister the exsiting visual
- DevelControl::UnregisterVisual( *this, Toolkit::ImageView::Property::IMAGE );
+ DevelControl::UnregisterVisual(*this, Toolkit::ImageView::Property::IMAGE);
// Trigger a size negotiation request that may be needed when unregistering a visual.
RelayoutRequest();
}
-
// Signal that a Relayout may be needed
}
-void ImageView::SetImage( const std::string& url, ImageDimensions size )
+void ImageView::SetImage(const std::string& url, ImageDimensions size)
{
+ if(mTransitionEffect && mVisual)
+ {
+ // Clear previous transition effect if it is playing
+ if(mPreviousVisual)
+ {
+ if(mTransitionAnimation)
+ {
+ if(mTransitionAnimation.GetState() == Animation::PLAYING)
+ {
+ HidePlaceholderImage();
+ ClearTransitionAnimation();
+ }
+ }
+ }
+
+ // Enable transition effect for previous visual.
+ // This previous visual will be deleted when transition effect is done.
+ Internal::Control::Impl& controlDataImpl = Internal::Control::Impl::Get(*this);
+ controlDataImpl.EnableReadyTransitionOverriden(mVisual, true);
+ mPreviousVisual = mVisual;
+ }
+
+
+
// Don't bother comparing if we had a visual previously, just drop old visual and create new one
- mUrl = url;
+ mUrl = url;
mImageSize = size;
- mImage.Reset();
mPropertyMap.Clear();
+ mImageReplaced = true;
+
+ if(!mVisual)
+ {
+ ShowPlaceholderImage();
+ }
+
// Don't set mVisual until it is ready and shown. Getters will still use current visual.
- Toolkit::Visual::Base visual = Toolkit::VisualFactory::Get().CreateVisual( url, size );
- if( visual )
+ Toolkit::Visual::Base visual = Toolkit::VisualFactory::Get().CreateVisual(url, size);
+ if(visual)
{
- if( !mVisual )
+ if(!mVisual)
{
mVisual = visual;
}
- if( !mShaderMap.Empty() )
+ if(!mShaderMap.Empty())
{
- Internal::Visual::Base& visualImpl = Toolkit::GetImplementation( visual );
- visualImpl.SetCustomShader( mShaderMap );
+ Internal::Visual::Base& visualImpl = Toolkit::GetImplementation(visual);
+ visualImpl.SetCustomShader(mShaderMap);
}
- DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, visual );
+ DevelControl::RegisterVisual(*this, Toolkit::ImageView::Property::IMAGE, visual);
}
else
{
// Unregister the exsiting visual
- DevelControl::UnregisterVisual( *this, Toolkit::ImageView::Property::IMAGE );
+ DevelControl::UnregisterVisual(*this, Toolkit::ImageView::Property::IMAGE);
// Trigger a size negotiation request that may be needed when unregistering a visual.
RelayoutRequest();
}
-
// Signal that a Relayout may be needed
}
-Image ImageView::GetImage() const
+void ImageView::ClearImageVisual()
{
- return mImage;
+ // Clear cached properties
+ mPropertyMap.Clear();
+ mUrl.clear();
+ mVisual.Reset();
+
+ // Unregister the exsiting visual
+ DevelControl::UnregisterVisual(*this, Toolkit::ImageView::Property::IMAGE);
+
+ // Trigger a size negotiation request that may be needed when unregistering a visual.
+ RelayoutRequest();
}
-void ImageView::EnablePreMultipliedAlpha( bool preMultipled )
+void ImageView::EnablePreMultipliedAlpha(bool preMultipled)
{
- if( mVisual )
+ if(mVisual)
{
- Toolkit::GetImplementation( mVisual ).EnablePreMultipliedAlpha( preMultipled );
+ Toolkit::GetImplementation(mVisual).EnablePreMultipliedAlpha(preMultipled);
}
}
bool ImageView::IsPreMultipliedAlphaEnabled() const
{
- if( mVisual )
+ if(mVisual)
{
- return Toolkit::GetImplementation( mVisual ).IsPreMultipliedAlphaEnabled();
+ return Toolkit::GetImplementation(mVisual).IsPreMultipliedAlphaEnabled();
}
return false;
}
-void ImageView::SetDepthIndex( int depthIndex )
+void ImageView::SetDepthIndex(int depthIndex)
{
- if( mVisual )
+ if(mVisual)
{
- mVisual.SetDepthIndex( depthIndex );
+ mVisual.SetDepthIndex(depthIndex);
}
}
+void ImageView::SetPlaceholderUrl(const std::string& url)
+{
+ mPlaceholderUrl = url;
+ if(!url.empty())
+ {
+ mPlaceholderVisual.Reset();
+ CreatePlaceholderImage();
+ }
+ else
+ {
+ // Clear current placeholder image
+ Toolkit::Visual::Base visual = DevelControl::GetVisual(*this, Toolkit::ImageView::Property::PLACEHOLDER_IMAGE);
+ if(visual)
+ {
+ DevelControl::UnregisterVisual(*this, Toolkit::ImageView::Property::PLACEHOLDER_IMAGE);
+ }
+
+ mPlaceholderVisual.Reset();
+ mPlaceholderUrl = url;
+ }
+}
+
+std::string ImageView::GetPlaceholderUrl() const
+{
+ return mPlaceholderUrl;
+}
+
+void ImageView::EnableTransitionEffect(bool effectEnable)
+{
+ mTransitionEffect = effectEnable;
+}
+
+bool ImageView::IsTransitionEffectEnabled() const
+{
+ return mTransitionEffect;
+}
+
Vector3 ImageView::GetNaturalSize()
{
- if( mVisual )
+ if(mVisual)
{
Vector2 rendererNaturalSize;
- mVisual.GetNaturalSize( rendererNaturalSize );
+ mVisual.GetNaturalSize(rendererNaturalSize);
Extents padding;
- padding = Self().GetProperty<Extents>( Toolkit::Control::Property::PADDING );
+ padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
- rendererNaturalSize.width += ( padding.start + padding.end );
- rendererNaturalSize.height += ( padding.top + padding.bottom );
- return Vector3( rendererNaturalSize );
+ rendererNaturalSize.width += (padding.start + padding.end);
+ rendererNaturalSize.height += (padding.top + padding.bottom);
+ return Vector3(rendererNaturalSize);
}
// if no visual then use Control's natural size
return Control::GetNaturalSize();
}
-float ImageView::GetHeightForWidth( float width )
+float ImageView::GetHeightForWidth(float width)
{
Extents padding;
- padding = Self().GetProperty<Extents>( Toolkit::Control::Property::PADDING );
+ padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
- if( mVisual )
+ if(mVisual)
{
- return mVisual.GetHeightForWidth( width ) + padding.top + padding.bottom;
+ return mVisual.GetHeightForWidth(width) + padding.top + padding.bottom;
}
else
{
- return Control::GetHeightForWidth( width ) + padding.top + padding.bottom;
+ return Control::GetHeightForWidth(width) + padding.top + padding.bottom;
}
}
-float ImageView::GetWidthForHeight( float height )
+float ImageView::GetWidthForHeight(float height)
{
Extents padding;
- padding = Self().GetProperty<Extents>( Toolkit::Control::Property::PADDING );
+ padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
- if( mVisual )
+ if(mVisual)
{
- return mVisual.GetWidthForHeight( height ) + padding.start + padding.end;
+ return mVisual.GetWidthForHeight(height) + padding.start + padding.end;
}
else
{
- return Control::GetWidthForHeight( height ) + padding.start + padding.end;
+ return Control::GetWidthForHeight(height) + padding.start + padding.end;
}
}
-void ImageView::OnRelayout( const Vector2& size, RelayoutContainer& container )
+void ImageView::OnRelayout(const Vector2& size, RelayoutContainer& container)
{
- Control::OnRelayout( size, container );
-
- if( mVisual )
+ Control::OnRelayout(size, container);
+ if(mVisual)
{
- Property::Map transformMap = Property::Map();
+ // If Resource is not ready, fittingMode is not working well.
+ // in this case, imageview set the flag for working applyFittingMode again when the resource is ready
+ if(!IsResourceReady())
+ {
+ mNeedLazyFittingMode = true;
+ }
- Extents padding = Self().GetProperty<Extents>( Toolkit::Control::Property::PADDING );
- const Visual::FittingMode fittingMode = Toolkit::GetImplementation(mVisual).GetFittingMode();
+ // Apply FittingMode using actor's size
+ ApplyFittingMode(size);
- bool zeroPadding = ( padding == Extents() );
- if( ( !zeroPadding ) || // If padding is not zero
- ( fittingMode == Visual::FittingMode::FIT_KEEP_ASPECT_RATIO ) )
+ // mVisual is not updated util the resource is ready in the case of visual replacement.
+ // in this case, the Property Map must be initialized so that the previous value is not reused.
+ // after mVisual is updated, the correct value will be reset.
+ Toolkit::Visual::Base visual = DevelControl::GetVisual(*this, Toolkit::ImageView::Property::IMAGE);
+ if(visual && visual != mVisual)
{
- Dali::LayoutDirection::Type layoutDirection = static_cast<Dali::LayoutDirection::Type>(
- Self().GetProperty( Dali::Actor::Property::LAYOUT_DIRECTION ).Get<int>() );
+ visual.SetTransformAndSize(Property::Map(), size);
+ }
+
+ if(!mTransitionEffect)
+ {
+ // we don't need placeholder anymore because visual is replaced. so hide placeholder.
+ HidePlaceholderImage();
+ }
+ }
+}
- if( Dali::LayoutDirection::RIGHT_TO_LEFT == layoutDirection )
+void ImageView::OnCreateTransitions(std::vector<std::pair<Dali::Property::Index, Dali::Property::Map>>& sourceProperties,
+ std::vector<std::pair<Dali::Property::Index, Dali::Property::Map>>& destinationProperties,
+ Dali::Toolkit::Control source,
+ Dali::Toolkit::Control destination)
+{
+ // Retrieves image properties to be transitioned.
+ Dali::Property::Map imageSourcePropertyMap, imageDestinationPropertyMap;
+ MakeVisualTransition(imageSourcePropertyMap, imageDestinationPropertyMap, source, destination, Toolkit::ImageView::Property::IMAGE);
+ if(imageSourcePropertyMap.Count() > 0)
+ {
+ sourceProperties.push_back(std::pair<Dali::Property::Index, Dali::Property::Map>(Toolkit::ImageView::Property::IMAGE, imageSourcePropertyMap));
+ destinationProperties.push_back(std::pair<Dali::Property::Index, Dali::Property::Map>(Toolkit::ImageView::Property::IMAGE, imageDestinationPropertyMap));
+ }
+}
+
+void ImageView::OnUpdateVisualProperties(const std::vector<std::pair<Dali::Property::Index, Dali::Property::Map>>& properties)
+{
+ Toolkit::Visual::Base visual = DevelControl::GetVisual(*this, Toolkit::ImageView::Property::IMAGE);
+ if(visual)
+ {
+ Dali::Toolkit::Control handle(GetOwner());
+
+ for(auto&& data : properties)
+ {
+ if(data.first == Toolkit::ImageView::Property::IMAGE)
{
- std::swap( padding.start, padding.end );
+ DevelControl::DoAction(handle, Toolkit::ImageView::Property::IMAGE, DevelVisual::Action::UPDATE_PROPERTY, data.second);
+ break;
}
+ }
+ }
+}
- auto finalOffset = Vector2( padding.start, padding.top );
- mImageVisualPaddingSetByTransform = true;
+void ImageView::OnResourceReady(Toolkit::Control control)
+{
+ // In case of placeholder, we need to skip this call.
+ // TODO: In case of placeholder, it needs to be modified not to call OnResourceReady()
+ if(control.GetVisualResourceStatus(Toolkit::ImageView::Property::IMAGE) != Toolkit::Visual::ResourceStatus::READY)
+ {
+ return;
+ }
- // remove padding from the size to know how much is left for the visual
- auto finalSize = size - Vector2( padding.start + padding.end, padding.top + padding.bottom );
+ // Do transition effect if need.
+ if(mTransitionEffect)
+ {
+ // TODO: Consider about placeholder image is loaded failed
+ Toolkit::Visual::Base placeholderVisual = DevelControl::GetVisual(*this, Toolkit::ImageView::Property::PLACEHOLDER_IMAGE);
+ if(!placeholderVisual || control.GetVisualResourceStatus(Toolkit::ImageView::Property::PLACEHOLDER_IMAGE) == Toolkit::Visual::ResourceStatus::READY)
+ {
+ // when placeholder is disabled or ready placeholder and image, we need to transition effect
+ TransitionImageWithEffect();
+ }
+ }
- // Should provide a transform that handles aspect ratio according to image size
- if( fittingMode == Visual::FittingMode::FIT_KEEP_ASPECT_RATIO )
- {
- auto availableVisualSize = finalSize;
+ // Visual ready so update visual attached to this ImageView, following call to RelayoutRequest will use this visual.
+ mVisual = DevelControl::GetVisual(*this, Toolkit::ImageView::Property::IMAGE);
+
+ // Applying FittingMode again if it is not working well on OnRelayout().
+ if(mNeedLazyFittingMode)
+ {
+ const Vector2& size = Self().GetProperty(Dali::Actor::Property::SIZE).Get<Vector2>();
+ ApplyFittingMode(size);
+ mNeedLazyFittingMode = false;
+ }
+
+ // Signal that a Relayout may be needed
+}
+
+void ImageView::SetTransformMapForFittingMode(Vector2 finalSize, Vector2 naturalSize, Vector2 finalOffset, Visual::FittingMode fittingMode, Property::Map& transformMap)
+{
+ switch(fittingMode)
+ {
+ case Visual::FittingMode::FIT_KEEP_ASPECT_RATIO:
+ {
+ auto availableVisualSize = finalSize;
+
+ // scale to fit the padded area
+ finalSize = naturalSize * std::min((!Dali::EqualsZero(naturalSize.width) ? (availableVisualSize.width / naturalSize.width) : 0),
+ (!Dali::EqualsZero(naturalSize.height) ? (availableVisualSize.height / naturalSize.height) : 0));
+
+ // calculate final offset within the padded area
+ finalOffset += (availableVisualSize - finalSize) * .5f;
+
+ // populate the transform map
+ transformMap.Add(Toolkit::Visual::Transform::Property::OFFSET, finalOffset)
+ .Add(Toolkit::Visual::Transform::Property::SIZE, finalSize);
+ break;
+ }
+ case Visual::FittingMode::OVER_FIT_KEEP_ASPECT_RATIO:
+ {
+ mImageViewPixelAreaSetByFittingMode = true;
+ auto availableVisualSize = finalSize;
+ finalSize = naturalSize * std::max((!Dali::EqualsZero(naturalSize.width) ? (availableVisualSize.width / naturalSize.width) : 0.0f),
+ (!Dali::EqualsZero(naturalSize.height) ? (availableVisualSize.height / naturalSize.height) : 0.0f));
- Vector2 naturalSize;
- mVisual.GetNaturalSize( naturalSize );
+ auto originalOffset = finalOffset;
+ finalOffset += (availableVisualSize - finalSize) * .5f;
- // scale to fit the padded area
- finalSize = naturalSize * std::min( ( naturalSize.width ? ( availableVisualSize.width / naturalSize.width ) : 0 ),
- ( naturalSize.height ? ( availableVisualSize.height / naturalSize.height ) : 0 ) );
+ float x = abs((availableVisualSize.width - finalSize.width) / finalSize.width) * .5f;
+ float y = abs((availableVisualSize.height - finalSize.height) / finalSize.height) * .5f;
+ float widthRatio = 1.f - abs((availableVisualSize.width - finalSize.width) / finalSize.width);
+ float heightRatio = 1.f - abs((availableVisualSize.height - finalSize.height) / finalSize.height);
+ Vector4 pixelArea = Vector4(x, y, widthRatio, heightRatio);
+ Self().SetProperty(Toolkit::ImageView::Property::PIXEL_AREA, pixelArea);
- // calculate final offset within the padded area
- finalOffset += ( availableVisualSize - finalSize ) * .5f;
+ // populate the transform map
+ transformMap.Add(Toolkit::Visual::Transform::Property::OFFSET, originalOffset)
+ .Add(Toolkit::Visual::Transform::Property::SIZE, availableVisualSize);
+ break;
+ }
+ case Visual::FittingMode::CENTER:
+ {
+ auto availableVisualSize = finalSize;
+ if(availableVisualSize.width > naturalSize.width && availableVisualSize.height > naturalSize.height)
+ {
+ finalSize = naturalSize;
+ }
+ else
+ {
+ finalSize = naturalSize * std::min((!Dali::EqualsZero(naturalSize.width) ? (availableVisualSize.width / naturalSize.width) : 0.0f),
+ (!Dali::EqualsZero(naturalSize.height) ? (availableVisualSize.height / naturalSize.height) : 0.0f));
}
+ finalOffset += (availableVisualSize - finalSize) * .5f;
+
// populate the transform map
- transformMap.Add( Toolkit::Visual::Transform::Property::OFFSET, finalOffset )
- .Add( Toolkit::Visual::Transform::Property::OFFSET_POLICY,
- Vector2( Toolkit::Visual::Transform::Policy::ABSOLUTE, Toolkit::Visual::Transform::Policy::ABSOLUTE ) )
- .Add( Toolkit::Visual::Transform::Property::ORIGIN, Toolkit::Align::TOP_BEGIN )
- .Add( Toolkit::Visual::Transform::Property::ANCHOR_POINT, Toolkit::Align::TOP_BEGIN )
- .Add( Toolkit::Visual::Transform::Property::SIZE, finalSize )
- .Add( Toolkit::Visual::Transform::Property::SIZE_POLICY,
- Vector2( Toolkit::Visual::Transform::Policy::ABSOLUTE, Toolkit::Visual::Transform::Policy::ABSOLUTE ) );
+ transformMap.Add(Toolkit::Visual::Transform::Property::OFFSET, finalOffset)
+ .Add(Toolkit::Visual::Transform::Property::SIZE, finalSize);
+ break;
+ }
+ case Visual::FittingMode::FILL:
+ {
+ transformMap.Add(Toolkit::Visual::Transform::Property::OFFSET, finalOffset)
+ .Add(Toolkit::Visual::Transform::Property::SIZE, finalSize);
+ break;
+ }
+ case Visual::FittingMode::FIT_WIDTH:
+ case Visual::FittingMode::FIT_HEIGHT:
+ {
+ // This FittingMode already converted
+ break;
+ }
+ }
+}
+
+void ImageView::ApplyFittingMode(const Vector2& size)
+{
+ Property::Map transformMap = Property::Map();
+
+ Extents padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
+
+ bool zeroPadding = (padding == Extents());
+
+ Dali::LayoutDirection::Type layoutDirection = static_cast<Dali::LayoutDirection::Type>(
+ Self().GetProperty(Dali::Actor::Property::LAYOUT_DIRECTION).Get<int>());
+ if(Dali::LayoutDirection::RIGHT_TO_LEFT == layoutDirection)
+ {
+ std::swap(padding.start, padding.end);
+ }
+
+ // remove padding from the size to know how much is left for the visual
+ Vector2 finalSize = size - Vector2(padding.start + padding.end, padding.top + padding.bottom);
+ Vector2 finalOffset = Vector2(padding.start, padding.top);
+
+ Visual::FittingMode fittingMode = Toolkit::GetImplementation(mVisual).GetFittingMode();
+
+ // Reset PIXEL_AREA after using OVER_FIT_KEEP_ASPECT_RATIO
+ if(mImageViewPixelAreaSetByFittingMode)
+ {
+ Self().SetProperty(Toolkit::ImageView::Property::PIXEL_AREA, FULL_TEXTURE_RECT);
+ mImageViewPixelAreaSetByFittingMode = false;
+ }
+
+ if((!zeroPadding) || // If padding is not zero
+ (fittingMode != Visual::FittingMode::FILL))
+ {
+ mImageVisualPaddingSetByTransform = true;
+
+ Vector2 naturalSize;
+ // NaturalSize will not be used for FILL fitting mode, which is default.
+ // Skip GetNaturalSize
+ if(fittingMode != Visual::FittingMode::FILL)
+ {
+ mVisual.GetNaturalSize(naturalSize);
+ }
+
+ // If FittingMode use FIT_WIDTH or FIT_HEIGTH, it need to change proper fittingMode
+ if(fittingMode == Visual::FittingMode::FIT_WIDTH)
+ {
+ fittingMode = (finalSize.height / naturalSize.height) < (finalSize.width / naturalSize.width) ? Visual::FittingMode::OVER_FIT_KEEP_ASPECT_RATIO : Visual::FittingMode::FIT_KEEP_ASPECT_RATIO;
}
- else if ( mImageVisualPaddingSetByTransform && zeroPadding ) // Reset offset to zero only if padding applied previously
+ else if(fittingMode == Visual::FittingMode::FIT_HEIGHT)
{
- mImageVisualPaddingSetByTransform = false;
- // Reset the transform map
- transformMap.Add( Toolkit::Visual::Transform::Property::OFFSET, Vector2::ZERO )
- .Add( Toolkit::Visual::Transform::Property::OFFSET_POLICY,
- Vector2( Toolkit::Visual::Transform::Policy::RELATIVE, Toolkit::Visual::Transform::Policy::RELATIVE ) );
+ fittingMode = (finalSize.height / naturalSize.height) < (finalSize.width / naturalSize.width) ? Visual::FittingMode::FIT_KEEP_ASPECT_RATIO : Visual::FittingMode::OVER_FIT_KEEP_ASPECT_RATIO;
}
+ SetTransformMapForFittingMode(finalSize, naturalSize, finalOffset, fittingMode, transformMap);
- mVisual.SetTransformAndSize( transformMap, size );
+ // Set extra value for applying transformMap
+ transformMap.Add(Toolkit::Visual::Transform::Property::OFFSET_POLICY,
+ Vector2(Toolkit::Visual::Transform::Policy::ABSOLUTE, Toolkit::Visual::Transform::Policy::ABSOLUTE))
+ .Add(Toolkit::Visual::Transform::Property::ORIGIN, Toolkit::Align::TOP_BEGIN)
+ .Add(Toolkit::Visual::Transform::Property::ANCHOR_POINT, Toolkit::Align::TOP_BEGIN)
+ .Add(Toolkit::Visual::Transform::Property::SIZE_POLICY,
+ Vector2(Toolkit::Visual::Transform::Policy::ABSOLUTE, Toolkit::Visual::Transform::Policy::ABSOLUTE));
}
+ else if(mImageVisualPaddingSetByTransform && zeroPadding) // Reset offset to zero only if padding applied previously
+ {
+ mImageVisualPaddingSetByTransform = false;
+ // Reset the transform map
+ transformMap.Add(Toolkit::Visual::Transform::Property::OFFSET, Vector2::ZERO)
+ .Add(Toolkit::Visual::Transform::Property::OFFSET_POLICY,
+ Vector2(Toolkit::Visual::Transform::Policy::RELATIVE, Toolkit::Visual::Transform::Policy::RELATIVE))
+ .Add(Toolkit::Visual::Transform::Property::SIZE, Vector2::ONE)
+ .Add(Toolkit::Visual::Transform::Property::SIZE_POLICY,
+ Vector2(Toolkit::Visual::Transform::Policy::RELATIVE, Toolkit::Visual::Transform::Policy::RELATIVE));
+ }
+
+ mVisual.SetTransformAndSize(transformMap, size);
}
-void ImageView::OnResourceReady( Toolkit::Control control )
+void ImageView::CreatePlaceholderImage()
{
- // Visual ready so update visual attached to this ImageView, following call to RelayoutRequest will use this visual.
- mVisual = DevelControl::GetVisual( *this, Toolkit::ImageView::Property::IMAGE );
- // Signal that a Relayout may be needed
+ Property::Map propertyMap;
+ propertyMap.Insert(Toolkit::Visual::Property::TYPE, Toolkit::Visual::IMAGE);
+ propertyMap.Insert(Toolkit::ImageVisual::Property::URL, mPlaceholderUrl);
+ //propertyMap.Insert(Toolkit::ImageVisual::Property::LOAD_POLICY, Toolkit::ImageVisual::LoadPolicy::IMMEDIATE); // TODO: need to enable this property
+ propertyMap.Insert(Toolkit::ImageVisual::Property::RELEASE_POLICY, Toolkit::ImageVisual::ReleasePolicy::DESTROYED);
+ propertyMap.Insert(Toolkit::DevelImageVisual::Property::ENABLE_BROKEN_IMAGE, false);
+ mPlaceholderVisual = Toolkit::VisualFactory::Get().CreateVisual(propertyMap);
+ if(mPlaceholderVisual)
+ {
+ mPlaceholderVisual.SetName("placeholder");
+ mPlaceholderVisual.SetDepthIndex(mPlaceholderVisual.GetDepthIndex() + PLACEHOLDER_DEPTH_INDEX);
+ }
+ else
+ {
+ DevelControl::UnregisterVisual(*this, Toolkit::ImageView::Property::PLACEHOLDER_IMAGE);
+ mPlaceholderVisual.Reset();
+ }
+}
+
+void ImageView::ShowPlaceholderImage()
+{
+ if(mPlaceholderVisual)
+ {
+ DevelControl::RegisterVisual(*this, Toolkit::ImageView::Property::PLACEHOLDER_IMAGE, mPlaceholderVisual, false);
+ Actor self = Self();
+ Toolkit::GetImplementation(mPlaceholderVisual).SetOnScene(self);
+ }
+}
+
+void ImageView::HidePlaceholderImage()
+{
+ if(mPlaceholderVisual)
+ {
+ DevelControl::UnregisterVisual(*this, Toolkit::ImageView::Property::PLACEHOLDER_IMAGE);
+
+ // Hide placeholder
+ Actor self = Self();
+ Toolkit::GetImplementation(mPlaceholderVisual).SetOffScene(self);
+ }
+}
+
+void ImageView::TransitionImageWithEffect()
+{
+ Toolkit::ImageView handle = Toolkit::ImageView(GetOwner());
+
+ if(handle)
+ {
+ if(!mImageReplaced)
+ {
+ // If the image is not replaced, the transition effect is not required.
+ return;
+ }
+
+ if(mTransitionAnimation)
+ {
+ ClearTransitionAnimation();
+ }
+
+ // Control visual's depth for transition effect
+ if(mPreviousVisual)
+ {
+ mPreviousVisual.SetDepthIndex(mPreviousVisual.GetDepthIndex() + PREVIOUS_VISUAL_DEPTH_INDEX);
+ }
+
+ mTransitionAnimation = Animation::New(TRANSITION_EFFECT_SPEED);
+ mTransitionAnimation.SetEndAction(Animation::EndAction::DISCARD);
+ float destinationAlpha = (mTransitionTargetAlpha > LOW_OPACITY) ? mTransitionTargetAlpha : LOW_OPACITY;
+
+ // Transition current image
+ Toolkit::Visual::Base imageVisual = DevelControl::GetVisual(*this, Toolkit::ImageView::Property::IMAGE);
+ if(imageVisual)
+ {
+ Dali::KeyFrames fadeinKeyFrames = Dali::KeyFrames::New();
+ fadeinKeyFrames.Add(0.0f, LOW_OPACITY);
+ fadeinKeyFrames.Add(1.0f, destinationAlpha);
+ mTransitionAnimation.AnimateBetween(DevelControl::GetVisualProperty(handle, Toolkit::ImageView::Property::IMAGE, Toolkit::Visual::Property::OPACITY), fadeinKeyFrames, AlphaFunction::EASE_IN_OUT);
+ imageVisual.SetDepthIndex(imageVisual.GetDepthIndex() + CURRENT_VISUAL_DEPTH_INDEX);
+ }
+
+ // Play transition animation
+ mTransitionAnimation.FinishedSignal().Connect(this, &ImageView::OnTransitionAnimationFinishedCallback);
+ mTransitionAnimation.Play();
+ }
+}
+
+void ImageView::ClearTransitionAnimation()
+{
+ // Clear PreviousVisual
+ if(mPreviousVisual)
+ {
+ Actor self = Self();
+ Internal::Control::Impl& controlDataImpl = Internal::Control::Impl::Get(*this);
+ controlDataImpl.EnableReadyTransitionOverriden(mVisual, false);
+ Toolkit::GetImplementation(mPreviousVisual).SetOffScene(self);
+ mPreviousVisual.Reset();
+ }
+
+ if(mTransitionAnimation)
+ {
+ if(mTransitionAnimation.GetState() == Animation::PLAYING)
+ {
+ mTransitionAnimation.Stop();
+ }
+ mTransitionAnimation.FinishedSignal().Disconnect(this, &ImageView::OnTransitionAnimationFinishedCallback);
+ mTransitionAnimation.Clear();
+ mTransitionAnimation.Reset();
+
+ // After transition effect is cleared, we don't need transition effect until image is replaced.
+ mImageReplaced = false;
+ }
}
///////////////////////////////////////////////////////////
// Properties
//
-void ImageView::SetProperty( BaseObject* object, Property::Index index, const Property::Value& value )
+void ImageView::SetProperty(BaseObject* object, Property::Index index, const Property::Value& value)
{
- Toolkit::ImageView imageView = Toolkit::ImageView::DownCast( Dali::BaseHandle( object ) );
+ Toolkit::ImageView imageView = Toolkit::ImageView::DownCast(Dali::BaseHandle(object));
- if ( imageView )
+ if(imageView)
{
- ImageView& impl = GetImpl( imageView );
- switch ( index )
+ ImageView& impl = GetImpl(imageView);
+ switch(index)
{
- case Toolkit::ImageView::Property::RESOURCE_URL:
- {
- std::string imageUrl;
- if( value.Get( imageUrl ) )
- {
- impl.SetImage( imageUrl, ImageDimensions() );
- }
- break;
- }
-
case Toolkit::ImageView::Property::IMAGE:
{
- std::string imageUrl;
- Property::Map* map;
- if( value.Get( imageUrl ) )
+ std::string imageUrl;
+ const Property::Map* map;
+ if(value.Get(imageUrl))
{
- impl.SetImage( imageUrl, ImageDimensions() );
+ impl.SetImage(imageUrl, ImageDimensions());
}
// if its not a string then get a Property::Map from the property if possible.
else
{
map = value.GetMap();
- if( map )
+ if(DALI_LIKELY(map))
{
- Property::Value* shaderValue = map->Find( Toolkit::Visual::Property::SHADER, CUSTOM_SHADER );
- // set image only if property map contains image information other than custom shader
- if( map->Count() > 1u || !shaderValue )
+ // the property map is emtpy map. Unregister visual.
+ if(DALI_UNLIKELY(map->Count() == 0u))
{
- impl.SetImage( *map );
+ impl.ClearImageVisual();
}
- // the property map contains only the custom shader
- else if( ( map->Count() == 1u )&&( shaderValue ) )
+ else
{
- Property::Map* shaderMap = shaderValue->GetMap();
- if( shaderMap )
+ Property::Value* shaderValue = map->Find(Toolkit::Visual::Property::SHADER, CUSTOM_SHADER);
+ // set image only if property map contains image information other than custom shader
+ if(map->Count() > 1u || !shaderValue)
{
- impl.mShaderMap = *shaderMap;
-
- if( !impl.mUrl.empty() )
- {
- impl.SetImage( impl.mUrl, impl.mImageSize );
- }
- else if( impl.mImage )
- {
- impl.SetImage( impl.mImage );
- }
- else if( !impl.mPropertyMap.Empty() )
+ impl.SetImage(*map);
+ }
+ // the property map contains only the custom shader
+ else if((map->Count() == 1u) && (shaderValue))
+ {
+ Property::Map* shaderMap = shaderValue->GetMap();
+ if(shaderMap)
{
- impl.SetImage( impl.mPropertyMap );
+ impl.mShaderMap = *shaderMap;
+
+ if(!impl.mUrl.empty())
+ {
+ impl.SetImage(impl.mUrl, impl.mImageSize);
+ }
+ else if(!impl.mPropertyMap.Empty())
+ {
+ impl.SetImage(impl.mPropertyMap);
+ }
}
}
}
}
+ else
+ {
+ // invalid property value comes. Unregister visual.
+ impl.ClearImageVisual();
+ }
}
break;
}
case Toolkit::ImageView::Property::PRE_MULTIPLIED_ALPHA:
{
bool isPre;
- if( value.Get( isPre ) )
+ if(value.Get(isPre))
{
- impl.EnablePreMultipliedAlpha( isPre );
+ impl.EnablePreMultipliedAlpha(isPre);
+ }
+ break;
+ }
+
+ case Toolkit::ImageView::Property::PLACEHOLDER_IMAGE:
+ {
+ std::string placeholderUrl;
+ if(value.Get(placeholderUrl))
+ {
+ impl.SetPlaceholderUrl(placeholderUrl);
+ }
+ break;
+ }
+
+ case Toolkit::ImageView::Property::ENABLE_TRANSITION_EFFECT:
+ {
+ bool transitionEffect;
+ if(value.Get(transitionEffect))
+ {
+ impl.EnableTransitionEffect(transitionEffect);
}
break;
}
}
}
-Property::Value ImageView::GetProperty( BaseObject* object, Property::Index propertyIndex )
+Property::Value ImageView::GetProperty(BaseObject* object, Property::Index propertyIndex)
{
Property::Value value;
- Toolkit::ImageView imageview = Toolkit::ImageView::DownCast( Dali::BaseHandle( object ) );
+ Toolkit::ImageView imageview = Toolkit::ImageView::DownCast(Dali::BaseHandle(object));
- if ( imageview )
+ if(imageview)
{
- ImageView& impl = GetImpl( imageview );
- switch ( propertyIndex )
+ ImageView& impl = GetImpl(imageview);
+ switch(propertyIndex)
{
- case Toolkit::ImageView::Property::RESOURCE_URL:
- {
- if ( !impl.mUrl.empty() )
- {
- value = impl.mUrl;
- }
- break;
- }
-
case Toolkit::ImageView::Property::IMAGE:
{
- if ( !impl.mUrl.empty() )
+ if(!impl.mUrl.empty())
{
value = impl.mUrl;
}
- else if( impl.mImage )
- {
- Property::Map map;
- Scripting::CreatePropertyMap( impl.mImage, map );
- value = map;
- }
else
{
- Property::Map map;
- Toolkit::Visual::Base visual = DevelControl::GetVisual( impl, Toolkit::ImageView::Property::IMAGE );
- if( visual )
+ Property::Map map;
+ Toolkit::Visual::Base visual = DevelControl::GetVisual(impl, Toolkit::ImageView::Property::IMAGE);
+ if(visual)
{
- visual.CreatePropertyMap( map );
+ visual.CreatePropertyMap(map);
}
value = map;
}
value = impl.IsPreMultipliedAlphaEnabled();
break;
}
+
+ case Toolkit::ImageView::Property::PLACEHOLDER_IMAGE:
+ {
+ value = impl.GetPlaceholderUrl();
+ break;
+ }
+
+ case Toolkit::ImageView::Property::ENABLE_TRANSITION_EFFECT:
+ {
+ value = impl.IsTransitionEffectEnabled();
+ break;
+ }
}
}
return value;
}
+void ImageView::OnTransitionAnimationFinishedCallback(Animation& animation)
+{
+ // Hide placeholder
+ HidePlaceholderImage();
+ ClearTransitionAnimation();
+}
+
} // namespace Internal
} // namespace Toolkit
} // namespace Dali
projects / platform / core / uifw / dali-toolkit.git / blobdiff