/*
- * Copyright (c) 2018 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2019 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.
using namespace Dali;
ImageView::ImageView()
-: Control( ControlBehaviour( CONTROL_BEHAVIOUR_DEFAULT ) )
+: Control( ControlBehaviour( CONTROL_BEHAVIOUR_DEFAULT ) ),
+ mImageSize(),
+ mImageVisualPaddingSetByTransform( false )
{
}
mVisual = visual;
}
- DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, 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
+ // 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();
}
+
+ // Signal that a Relayout may be needed
}
void ImageView::SetImage( const Property::Map& map )
mVisual = visual;
}
+ if( !mShaderMap.Empty() )
+ {
+ Internal::Visual::Base& visualImpl = Toolkit::GetImplementation( visual );
+ visualImpl.SetCustomShader( mShaderMap );
+ }
+
DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, visual );
}
else
// 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 )
{
// Don't bother comparing if we had a visual previously, just drop old visual and create new one
mUrl = url;
+ mImageSize = size;
mImage.Reset();
mPropertyMap.Clear();
mVisual = visual;
}
+ if( !mShaderMap.Empty() )
+ {
+ Internal::Visual::Base& visualImpl = Toolkit::GetImplementation( visual );
+ visualImpl.SetCustomShader( mShaderMap );
+ }
+
DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, visual );
}
else
// 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::OnStageConnection( int depth )
+{
+ if( mImage )
+ {
+ mImage.UploadedSignal().Emit( mImage );
+ }
+
+ Dali::ResourceImage resourceImage = Dali::ResourceImage::DownCast( mImage );
+ if( resourceImage )
+ {
+ resourceImage.LoadingFinishedSignal().Emit( resourceImage );
+ }
+
+ Control::OnStageConnection( depth ); // Enabled visuals will be put on stage
+}
+
Vector3 ImageView::GetNaturalSize()
{
if( mVisual )
{
Property::Map transformMap = Property::Map();
- // Don't transform if fitting mode is FILL
- if(Toolkit::GetImplementation(mVisual).GetFittingMode() == Visual::FittingMode::FIT_KEEP_ASPECT_RATIO)
- {
- Extents padding;
- padding = Self().GetProperty<Extents>( Toolkit::Control::Property::PADDING );
+ Extents padding = Self().GetProperty<Extents>( Toolkit::Control::Property::PADDING );
+ const Visual::FittingMode fittingMode = Toolkit::GetImplementation(mVisual).GetFittingMode();
+ bool zeroPadding = ( padding == Extents() );
+ if( ( !zeroPadding ) || // If padding is not zero
+ ( fittingMode == Visual::FittingMode::FIT_KEEP_ASPECT_RATIO ) )
+ {
Dali::LayoutDirection::Type layoutDirection = static_cast<Dali::LayoutDirection::Type>(
- Self().GetProperty(Dali::Actor::Property::LAYOUT_DIRECTION).Get<int>());
+ Self().GetProperty( Dali::Actor::Property::LAYOUT_DIRECTION ).Get<int>() );
- if (Dali::LayoutDirection::RIGHT_TO_LEFT == layoutDirection)
+ if( Dali::LayoutDirection::RIGHT_TO_LEFT == layoutDirection )
{
- std::swap(padding.start, padding.end);
+ std::swap( padding.start, padding.end );
}
+ auto finalOffset = Vector2( padding.start, padding.top );
+ mImageVisualPaddingSetByTransform = true;
+
// remove padding from the size to know how much is left for the visual
- auto paddedSize = size - Vector2(padding.start + padding.end, padding.top + padding.bottom);
+ auto finalSize = size - Vector2( padding.start + padding.end, padding.top + padding.bottom );
- Vector2 naturalSize;
- mVisual.GetNaturalSize(naturalSize);
+ // Should provide a transform that handles aspect ratio according to image size
+ if( fittingMode == Visual::FittingMode::FIT_KEEP_ASPECT_RATIO )
+ {
+ auto availableVisualSize = finalSize;
- // scale to fit the padded area
- auto finalSize =
- naturalSize * std::min((paddedSize.width / naturalSize.width), (paddedSize.height / naturalSize.height));
+ Vector2 naturalSize;
+ mVisual.GetNaturalSize( naturalSize );
- // calculate final offset within the padded area
- auto finalOffset = Vector2(padding.start, padding.top) + (paddedSize - 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 ) );
- // 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));
+ // 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::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 ) );
}
- // Should provide a transform that handles aspect ratio according to image size
+ 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 ) );
+ }
+
+
mVisual.SetTransformAndSize( transformMap, size );
}
}
{
// 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
}
///////////////////////////////////////////////////////////
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() )
+ {
+ impl.SetImage( impl.mUrl, impl.mImageSize );
+ }
+ else if( impl.mImage )
+ {
+ impl.SetImage( impl.mImage );
+ }
+ else if( !impl.mPropertyMap.Empty() )
{
- // force to create new core renderer to use the newly set shader
- visual.SetOffStage( imageView );
- visual.SetOnStage( imageView );
+ impl.SetImage( impl.mPropertyMap );
}
}
}
Scripting::CreatePropertyMap( impl.mImage, map );
value = map;
}
- else if( !impl.mPropertyMap.Empty() )
+ else
{
- value = impl.mPropertyMap;
+ Property::Map map;
+ Toolkit::Visual::Base visual = DevelControl::GetVisual( impl, Toolkit::ImageView::Property::IMAGE );
+ if( visual )
+ {
+ visual.CreatePropertyMap( map );
+ }
+ value = map;
}
break;
}