X-Git-Url: http://review.tizen.org/git/?p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git;a=blobdiff_plain;f=dali-toolkit%2Finternal%2Fcontrols%2Fimage-view%2Fimage-view-impl.cpp;h=0f893a3ad6b7ecd3324db6f3bec119620188e147;hp=65e043ebf74f198190061c7eac76ff2434dd2ea3;hb=f546dd5d83a968e573f8f053a01ce43df32c71a0;hpb=7845c204ad99f3452a0afb3b2893b941eeb9feb9 diff --git a/dali-toolkit/internal/controls/image-view/image-view-impl.cpp b/dali-toolkit/internal/controls/image-view/image-view-impl.cpp index 65e043e..0f893a3 100644 --- a/dali-toolkit/internal/controls/image-view/image-view-impl.cpp +++ b/dali-toolkit/internal/controls/image-view/image-view-impl.cpp @@ -1,5 +1,5 @@ /* - * Copyright (c) 2017 Samsung Electronics Co., Ltd. + * Copyright (c) 2020 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. @@ -19,7 +19,6 @@ #include "image-view-impl.h" // EXTERNAL INCLUDES -#include #include #include #include @@ -27,11 +26,12 @@ // INTERNAL INCLUDES #include #include -#include +#include #include #include #include #include +#include namespace Dali { @@ -45,6 +45,8 @@ namespace Internal namespace { +const Vector4 FULL_TEXTURE_RECT(0.f, 0.f, 1.f, 1.f); + BaseHandle Create() { return Toolkit::ImageView::New(); @@ -52,7 +54,6 @@ 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 ) @@ -64,7 +65,10 @@ DALI_TYPE_REGISTRATION_END() using namespace Dali; ImageView::ImageView() -: Control( ControlBehaviour( CONTROL_BEHAVIOUR_DEFAULT ) ) +: Control( ControlBehaviour( CONTROL_BEHAVIOUR_DEFAULT ) ), + mImageSize(), + mImageVisualPaddingSetByTransform( false ), + mImageViewPixelAreaSetByFittingMode( false ) { } @@ -87,17 +91,16 @@ Toolkit::ImageView ImageView::New() ///////////////////////////////////////////////////////////// -void ImageView::SetImage( Image image ) +void ImageView::OnInitialize() { - // Don't bother comparing if we had a visual previously, just drop old visual and create new one - mImage = image; - mUrl.clear(); - mPropertyMap.Clear(); - - mVisual = Toolkit::VisualFactory::Get().CreateVisual( image ); - DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, mVisual ); - - RelayoutRequest(); + // 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 ); + + DevelControl::SetAccessibilityConstructor( Self(), []( Dali::Actor actor ) { + return std::unique_ptr< Dali::Accessibility::Accessible >( + new Control::Impl::AccessibleImpl( actor, Dali::Accessibility::Role::IMAGE ) ); + } ); } void ImageView::SetImage( const Property::Map& map ) @@ -105,30 +108,70 @@ 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(); - mVisual = Toolkit::VisualFactory::Get().CreateVisual( mPropertyMap ); - DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, mVisual ); + 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 ) + { + mVisual = visual; + } + + if( !mShaderMap.Empty() ) + { + Internal::Visual::Base& visualImpl = Toolkit::GetImplementation( visual ); + visualImpl.SetCustomShader( mShaderMap ); + } + + DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, visual ); + } + else + { + // 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(); + } - RelayoutRequest(); + // Signal that a Relayout may be needed } void ImageView::SetImage( const std::string& url, ImageDimensions size ) { // Don't bother comparing if we had a visual previously, just drop old visual and create new one mUrl = url; - mImage.Reset(); + mImageSize = size; mPropertyMap.Clear(); - mVisual = Toolkit::VisualFactory::Get().CreateVisual( url, size ); - DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, mVisual ); + // 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 ) + { + if( !mVisual ) + { + mVisual = visual; + } - RelayoutRequest(); -} + if( !mShaderMap.Empty() ) + { + Internal::Visual::Base& visualImpl = Toolkit::GetImplementation( visual ); + visualImpl.SetCustomShader( mShaderMap ); + } -Image ImageView::GetImage() const -{ - return mImage; + DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, visual ); + } + else + { + // 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(); + } + + // Signal that a Relayout may be needed } void ImageView::EnablePreMultipliedAlpha( bool preMultipled ) @@ -162,6 +205,12 @@ Vector3 ImageView::GetNaturalSize() { Vector2 rendererNaturalSize; mVisual.GetNaturalSize( rendererNaturalSize ); + + Extents padding; + padding = Self().GetProperty( Toolkit::Control::Property::PADDING ); + + rendererNaturalSize.width += ( padding.start + padding.end ); + rendererNaturalSize.height += ( padding.top + padding.bottom ); return Vector3( rendererNaturalSize ); } @@ -171,40 +220,207 @@ Vector3 ImageView::GetNaturalSize() float ImageView::GetHeightForWidth( float width ) { + Extents padding; + padding = Self().GetProperty( Toolkit::Control::Property::PADDING ); + if( mVisual ) { - return mVisual.GetHeightForWidth( width ); + return mVisual.GetHeightForWidth( width ) + padding.top + padding.bottom; } else { - return Control::GetHeightForWidth( width ); + return Control::GetHeightForWidth( width ) + padding.top + padding.bottom; } } float ImageView::GetWidthForHeight( float height ) { + Extents padding; + padding = Self().GetProperty( Toolkit::Control::Property::PADDING ); + if( mVisual ) { - return mVisual.GetWidthForHeight( height ); + return mVisual.GetWidthForHeight( height ) + padding.start + padding.end; } else { - return Control::GetWidthForHeight( height ); + return Control::GetWidthForHeight( height ) + padding.start + padding.end; } } void ImageView::OnRelayout( const Vector2& size, RelayoutContainer& container ) { Control::OnRelayout( size, container ); - if( mVisual ) { - // Pass in an empty map which uses default transform values meaning our visual fills the control - // Should provide a transform that handles aspect ratio according to image size - mVisual.SetTransformAndSize( Property::Map(), size ); + Property::Map transformMap = Property::Map(); + + Extents padding = Self().GetProperty( Toolkit::Control::Property::PADDING ); + + bool zeroPadding = ( padding == Extents() ); + + Vector2 naturalSize; + mVisual.GetNaturalSize( naturalSize ); + + Dali::LayoutDirection::Type layoutDirection = static_cast( + Self().GetProperty( Dali::Actor::Property::LAYOUT_DIRECTION ).Get() ); + 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 ); + + ApplyFittingMode( finalSize, naturalSize, finalOffset, zeroPadding , transformMap ); + + mVisual.SetTransformAndSize( transformMap, size ); + + // 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 ) + { + visual.SetTransformAndSize( Property::Map(), size ); + } + } +} + +void ImageView::OnResourceReady( Toolkit::Control control ) +{ + // 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 +} + +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( ( naturalSize.width ? ( availableVisualSize.width / naturalSize.width ) : 0 ), + ( 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( ( naturalSize.width ? ( availableVisualSize.width / naturalSize.width ) : 0 ), + ( naturalSize.height ? ( availableVisualSize.height / naturalSize.height ) : 0 ) ); + + auto originalOffset = finalOffset; + finalOffset += ( availableVisualSize - finalSize ) * .5f; + + 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 ); + + // 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( ( naturalSize.width ? ( availableVisualSize.width / naturalSize.width ) : 0 ), + ( naturalSize.height ? ( availableVisualSize.height / naturalSize.height ) : 0 ) ); + } + + 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::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( Vector2 finalSize, Vector2 naturalSize, Vector2 finalOffset, bool zeroPadding , Property::Map& transformMap ) +{ + 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; + + // 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( fittingMode == Visual::FittingMode::FIT_HEIGHT ) + { + 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 ); + + // 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 ) ); + } +} + /////////////////////////////////////////////////////////// // // Properties @@ -219,20 +435,10 @@ void ImageView::SetProperty( BaseObject* object, Property::Index index, const Pr 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; + const Property::Map* map; if( value.Get( imageUrl ) ) { impl.SetImage( imageUrl, ImageDimensions() ); @@ -243,25 +449,27 @@ void ImageView::SetProperty( BaseObject* object, Property::Index index, const Pr map = value.GetMap(); if( map ) { - Property::Value* shaderValue = map->Find( Toolkit::DevelVisual::Property::SHADER, CUSTOM_SHADER ); + 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.SetImage( *map ); } // the property map contains only the custom shader - else if( ( impl.mVisual )&&( map->Count() == 1u )&&( shaderValue ) ) + else if( ( map->Count() == 1u )&&( shaderValue ) ) { Property::Map* shaderMap = shaderValue->GetMap(); if( shaderMap ) { - Internal::Visual::Base& visual = Toolkit::GetImplementation( impl.mVisual ); - visual.SetCustomShader( *shaderMap ); - if( imageView.OnStage() ) + impl.mShaderMap = *shaderMap; + + if( !impl.mUrl.empty() ) { - // force to create new core renderer to use the newly set shader - visual.SetOffStage( imageView ); - visual.SetOnStage( imageView ); + impl.SetImage( impl.mUrl, impl.mImageSize ); + } + else if( !impl.mPropertyMap.Empty() ) + { + impl.SetImage( impl.mPropertyMap ); } } } @@ -294,31 +502,22 @@ Property::Value ImageView::GetProperty( BaseObject* object, Property::Index prop 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() ) { value = impl.mUrl; } - else if( impl.mImage ) + else { Property::Map map; - Scripting::CreatePropertyMap( impl.mImage, map ); + Toolkit::Visual::Base visual = DevelControl::GetVisual( impl, Toolkit::ImageView::Property::IMAGE ); + if( visual ) + { + visual.CreatePropertyMap( map ); + } value = map; } - else if( !impl.mPropertyMap.Empty() ) - { - value = impl.mPropertyMap; - } break; }