+/*
+ * Copyright (c) 2016 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.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+// CLASS HEADER
+#include "animated-image-visual.h"
+
+// EXTERNAL INCLUDES
+#include <dali/devel-api/adaptor-framework/gif-loading.h>
+
+// INTERNAL INCLUDES
+#include <dali-toolkit/public-api/visuals/image-visual-properties.h>
+#include <dali-toolkit/devel-api/visuals/visual-properties-devel.h>
+#include <dali-toolkit/internal/visuals/visual-factory-impl.h>
+#include <dali-toolkit/internal/visuals/visual-factory-cache.h>
+#include <dali-toolkit/internal/visuals/visual-string-constants.h>
+#include <dali-toolkit/internal/visuals/visual-base-data-impl.h>
+#include <dali-toolkit/internal/visuals/image/image-visual.h>
+#include <dali-toolkit/devel-api/image-loader/image-atlas.h>
+
+namespace Dali
+{
+
+namespace Toolkit
+{
+
+namespace Internal
+{
+
+AnimatedImageVisualPtr AnimatedImageVisual::New( VisualFactoryCache& factoryCache, const std::string& imageUrl, const Property::Map& properties )
+{
+ AnimatedImageVisual* visual = new AnimatedImageVisual( factoryCache );
+ visual->mImageUrl = imageUrl;
+ visual->SetProperties( properties );
+
+ return visual;
+}
+
+AnimatedImageVisualPtr AnimatedImageVisual::New( VisualFactoryCache& factoryCache, const std::string& imageUrl )
+{
+ AnimatedImageVisual* visual = new AnimatedImageVisual( factoryCache );
+ visual->mImageUrl = imageUrl;
+
+ return visual;
+}
+
+AnimatedImageVisual::AnimatedImageVisual( VisualFactoryCache& factoryCache )
+: Visual::Base( factoryCache ),
+ mFrameDelayTimer(),
+ mImageUrl(),
+ mImageSize(),
+ mCurrentFrameIndex( 0 )
+{}
+
+AnimatedImageVisual::~AnimatedImageVisual()
+{
+}
+
+void AnimatedImageVisual::GetNaturalSize( Vector2& naturalSize )
+{
+ if( mImageSize.GetWidth() == 0 && mImageSize.GetHeight() == 0)
+ {
+ mImageSize = Dali::GetGifImageSize( mImageUrl );
+ }
+
+ naturalSize.width = mImageSize.GetWidth();
+ naturalSize.height = mImageSize.GetHeight();
+}
+
+void AnimatedImageVisual::DoCreatePropertyMap( Property::Map& map ) const
+{
+ map.Clear();
+ map.Insert( Toolkit::DevelVisual::Property::TYPE, Toolkit::Visual::IMAGE );
+ if( !mImageUrl.empty() )
+ {
+ map.Insert( Toolkit::ImageVisual::Property::URL, mImageUrl );
+ }
+}
+
+void AnimatedImageVisual::DoSetProperties( const Property::Map& propertyMap )
+{
+ // url already passed in from constructor
+}
+
+void AnimatedImageVisual::DoSetOnStage( Actor& actor )
+{
+ Texture texture = PrepareAnimatedImage();
+ if( texture ) // if the image loading is successful
+ {
+ Shader shader = ImageVisual::GetImageShader( mFactoryCache, true, true );
+ Geometry geometry = mFactoryCache.GetGeometry( VisualFactoryCache::QUAD_GEOMETRY );
+ TextureSet textureSet = TextureSet::New();
+ mImpl->mRenderer = Renderer::New( geometry, shader );
+ mImpl->mRenderer.SetTextures( textureSet );
+ textureSet.SetTexture( 0u, PrepareAnimatedImage() );
+ mImpl->mRenderer.RegisterProperty( ATLAS_RECT_UNIFORM_NAME, mTextureRectContainer[0] );
+
+ // Register transform properties
+ mImpl->mTransform.RegisterUniforms( mImpl->mRenderer, Direction::LEFT_TO_RIGHT );
+
+ mCurrentFrameIndex = 0;
+ if( mFrameDelayContainer.Count() > 1 )
+ {
+ mFrameDelayTimer = Timer::New( mFrameDelayContainer[0] );
+ mFrameDelayTimer.TickSignal().Connect( this, &AnimatedImageVisual::DisplayNextFrame );
+ mFrameDelayTimer.Start();
+ }
+
+ actor.AddRenderer( mImpl->mRenderer );
+ }
+}
+
+void AnimatedImageVisual::DoSetOffStage( Actor& actor )
+{
+ if( !mImpl->mRenderer )
+ {
+ return;
+ }
+
+ if( mFrameDelayTimer )
+ {
+ mFrameDelayTimer.Stop();
+ mFrameDelayTimer.Reset();
+ }
+
+ mTextureRectContainer.Clear();
+ mFrameDelayContainer.Clear();
+
+ actor.RemoveRenderer( mImpl->mRenderer );
+ mImpl->mRenderer.Reset();
+}
+
+void AnimatedImageVisual::OnSetTransform()
+{
+ if( mImpl->mRenderer )
+ {
+ mImpl->mTransform.RegisterUniforms( mImpl->mRenderer, Direction::LEFT_TO_RIGHT );
+ }
+}
+
+Texture AnimatedImageVisual::PrepareAnimatedImage()
+{
+ // load from image file
+ std::vector<Dali::PixelData> pixelDataList;
+ if( Dali::LoadAnimatedGifFromFile( mImageUrl.c_str() , pixelDataList, mFrameDelayContainer ) )
+ {
+ mImageSize.SetWidth( pixelDataList[0].GetWidth() );
+ mImageSize.SetHeight( pixelDataList[0].GetHeight() );
+
+ return Toolkit::ImageAtlas::PackToAtlas( pixelDataList, mTextureRectContainer );
+ }
+
+ return Texture();
+}
+
+bool AnimatedImageVisual::DisplayNextFrame()
+{
+ mCurrentFrameIndex = (mCurrentFrameIndex+1) % mFrameDelayContainer.Count();
+ mImpl->mRenderer.RegisterProperty( ATLAS_RECT_UNIFORM_NAME, mTextureRectContainer[mCurrentFrameIndex] );
+ if( mFrameDelayTimer.GetInterval() != mFrameDelayContainer[mCurrentFrameIndex] )
+ {
+ mFrameDelayTimer.SetInterval( mFrameDelayContainer[mCurrentFrameIndex] );
+ }
+
+ return true;
+}
+
+
+} // namespace Internal
+
+} // namespace Toolkit
+
+} // namespace Dali
projects / platform / core / uifw / dali-toolkit.git / commitdiff
