2 * Copyright (c) 2016 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 "animated-image-visual.h"
22 #include <dali/devel-api/adaptor-framework/gif-loading.h>
25 #include <dali-toolkit/public-api/visuals/image-visual-properties.h>
26 #include <dali-toolkit/devel-api/visuals/visual-properties-devel.h>
27 #include <dali-toolkit/internal/visuals/visual-factory-impl.h>
28 #include <dali-toolkit/internal/visuals/visual-factory-cache.h>
29 #include <dali-toolkit/internal/visuals/visual-string-constants.h>
30 #include <dali-toolkit/internal/visuals/visual-base-data-impl.h>
31 #include <dali-toolkit/internal/visuals/image/image-visual.h>
32 #include <dali-toolkit/devel-api/image-loader/image-atlas.h>
43 AnimatedImageVisualPtr AnimatedImageVisual::New( VisualFactoryCache& factoryCache, const std::string& imageUrl, const Property::Map& properties )
45 AnimatedImageVisual* visual = new AnimatedImageVisual( factoryCache );
46 visual->mImageUrl = imageUrl;
47 visual->SetProperties( properties );
52 AnimatedImageVisualPtr AnimatedImageVisual::New( VisualFactoryCache& factoryCache, const std::string& imageUrl )
54 AnimatedImageVisual* visual = new AnimatedImageVisual( factoryCache );
55 visual->mImageUrl = imageUrl;
60 AnimatedImageVisual::AnimatedImageVisual( VisualFactoryCache& factoryCache )
61 : Visual::Base( factoryCache ),
65 mCurrentFrameIndex( 0 )
68 AnimatedImageVisual::~AnimatedImageVisual()
72 void AnimatedImageVisual::GetNaturalSize( Vector2& naturalSize )
74 if( mImageSize.GetWidth() == 0 && mImageSize.GetHeight() == 0)
76 mImageSize = Dali::GetGifImageSize( mImageUrl );
79 naturalSize.width = mImageSize.GetWidth();
80 naturalSize.height = mImageSize.GetHeight();
83 void AnimatedImageVisual::DoCreatePropertyMap( Property::Map& map ) const
86 map.Insert( Toolkit::DevelVisual::Property::TYPE, Toolkit::Visual::IMAGE );
87 if( !mImageUrl.empty() )
89 map.Insert( Toolkit::ImageVisual::Property::URL, mImageUrl );
93 void AnimatedImageVisual::DoSetProperties( const Property::Map& propertyMap )
95 // url already passed in from constructor
98 void AnimatedImageVisual::DoSetOnStage( Actor& actor )
100 Texture texture = PrepareAnimatedImage();
101 if( texture ) // if the image loading is successful
103 Shader shader = ImageVisual::GetImageShader( mFactoryCache, true, true );
104 Geometry geometry = mFactoryCache.GetGeometry( VisualFactoryCache::QUAD_GEOMETRY );
105 TextureSet textureSet = TextureSet::New();
106 mImpl->mRenderer = Renderer::New( geometry, shader );
107 mImpl->mRenderer.SetTextures( textureSet );
108 textureSet.SetTexture( 0u, PrepareAnimatedImage() );
109 mImpl->mRenderer.RegisterProperty( ATLAS_RECT_UNIFORM_NAME, mTextureRectContainer[0] );
111 // Register transform properties
112 mImpl->mTransform.RegisterUniforms( mImpl->mRenderer, Direction::LEFT_TO_RIGHT );
114 mCurrentFrameIndex = 0;
115 if( mFrameDelayContainer.Count() > 1 )
117 mFrameDelayTimer = Timer::New( mFrameDelayContainer[0] );
118 mFrameDelayTimer.TickSignal().Connect( this, &AnimatedImageVisual::DisplayNextFrame );
119 mFrameDelayTimer.Start();
122 actor.AddRenderer( mImpl->mRenderer );
126 void AnimatedImageVisual::DoSetOffStage( Actor& actor )
128 if( !mImpl->mRenderer )
133 if( mFrameDelayTimer )
135 mFrameDelayTimer.Stop();
136 mFrameDelayTimer.Reset();
139 mTextureRectContainer.Clear();
140 mFrameDelayContainer.Clear();
142 actor.RemoveRenderer( mImpl->mRenderer );
143 mImpl->mRenderer.Reset();
146 void AnimatedImageVisual::OnSetTransform()
148 if( mImpl->mRenderer )
150 mImpl->mTransform.RegisterUniforms( mImpl->mRenderer, Direction::LEFT_TO_RIGHT );
154 Texture AnimatedImageVisual::PrepareAnimatedImage()
156 // load from image file
157 std::vector<Dali::PixelData> pixelDataList;
158 if( Dali::LoadAnimatedGifFromFile( mImageUrl.c_str() , pixelDataList, mFrameDelayContainer ) )
160 mImageSize.SetWidth( pixelDataList[0].GetWidth() );
161 mImageSize.SetHeight( pixelDataList[0].GetHeight() );
163 return Toolkit::ImageAtlas::PackToAtlas( pixelDataList, mTextureRectContainer );
169 bool AnimatedImageVisual::DisplayNextFrame()
171 mCurrentFrameIndex = (mCurrentFrameIndex+1) % mFrameDelayContainer.Count();
172 mImpl->mRenderer.RegisterProperty( ATLAS_RECT_UNIFORM_NAME, mTextureRectContainer[mCurrentFrameIndex] );
173 if( mFrameDelayTimer.GetInterval() != mFrameDelayContainer[mCurrentFrameIndex] )
175 mFrameDelayTimer.SetInterval( mFrameDelayContainer[mCurrentFrameIndex] );
182 } // namespace Internal
184 } // namespace Toolkit