2 * Copyright (c) 2017 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 "image-view-impl.h"
22 #include <dali/public-api/images/resource-image.h>
23 #include <dali/public-api/object/type-registry.h>
24 #include <dali/public-api/object/type-registry-helper.h>
25 #include <dali/devel-api/scripting/scripting.h>
28 #include <dali-toolkit/public-api/controls/image-view/image-view.h>
29 #include <dali-toolkit/devel-api/controls/control-devel.h>
30 #include <dali-toolkit/devel-api/visuals/visual-properties-devel.h>
31 #include <dali-toolkit/devel-api/visual-factory/visual-factory.h>
32 #include <dali-toolkit/internal/visuals/visual-string-constants.h>
33 #include <dali-toolkit/internal/visuals/visual-base-impl.h>
34 #include <dali-toolkit/internal/visuals/visual-base-data-impl.h>
50 return Toolkit::ImageView::New();
53 // Setup properties, signals and actions using the type-registry.
54 DALI_TYPE_REGISTRATION_BEGIN( Toolkit::ImageView, Toolkit::Control, Create );
55 DALI_PROPERTY_REGISTRATION( Toolkit, ImageView, "resourceUrl", STRING, RESOURCE_URL )
56 DALI_PROPERTY_REGISTRATION( Toolkit, ImageView, "image", MAP, IMAGE )
57 DALI_PROPERTY_REGISTRATION( Toolkit, ImageView, "preMultipliedAlpha", BOOLEAN, PRE_MULTIPLIED_ALPHA )
59 DALI_ANIMATABLE_PROPERTY_REGISTRATION_WITH_DEFAULT( Toolkit, ImageView, "pixelArea", Vector4(0.f, 0.f, 1.f, 1.f), PIXEL_AREA )
60 DALI_TYPE_REGISTRATION_END()
62 } // anonymous namespace
66 ImageView::ImageView()
67 : Control( ControlBehaviour( CONTROL_BEHAVIOUR_DEFAULT ) )
71 ImageView::~ImageView()
75 Toolkit::ImageView ImageView::New()
77 ImageView* impl = new ImageView();
79 Toolkit::ImageView handle = Toolkit::ImageView( *impl );
81 // Second-phase init of the implementation
82 // This can only be done after the CustomActor connection has been made...
88 /////////////////////////////////////////////////////////////
90 void ImageView::SetImage( Image image )
92 // Don't bother comparing if we had a visual previously, just drop old visual and create new one
97 mVisual = Toolkit::VisualFactory::Get().CreateVisual( image );
98 DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, mVisual );
103 void ImageView::SetImage( const Property::Map& map )
105 // Comparing a property map is too expensive so just creating a new visual
110 mVisual = Toolkit::VisualFactory::Get().CreateVisual( mPropertyMap );
111 DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, mVisual );
116 void ImageView::SetImage( const std::string& url, ImageDimensions size )
118 // Don't bother comparing if we had a visual previously, just drop old visual and create new one
121 mPropertyMap.Clear();
123 mVisual = Toolkit::VisualFactory::Get().CreateVisual( url, size );
124 DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, mVisual );
129 Image ImageView::GetImage() const
134 void ImageView::EnablePreMultipliedAlpha( bool preMultipled )
138 Toolkit::GetImplementation( mVisual ).EnablePreMultipliedAlpha( preMultipled );
142 bool ImageView::IsPreMultipliedAlphaEnabled() const
146 return Toolkit::GetImplementation( mVisual ).IsPreMultipliedAlphaEnabled();
151 void ImageView::SetDepthIndex( int depthIndex )
155 mVisual.SetDepthIndex( depthIndex );
159 void ImageView::OnStageConnection( int depth )
163 mImage.UploadedSignal().Emit( mImage );
166 Dali::ResourceImage resourceImage = Dali::ResourceImage::DownCast( mImage );
169 resourceImage.LoadingFinishedSignal().Emit( resourceImage );
172 Control::OnStageConnection( depth ); // Enabled visuals will be put on stage
175 Vector3 ImageView::GetNaturalSize()
179 Vector2 rendererNaturalSize;
180 mVisual.GetNaturalSize( rendererNaturalSize );
181 return Vector3( rendererNaturalSize );
184 // if no visual then use Control's natural size
185 return Control::GetNaturalSize();
188 float ImageView::GetHeightForWidth( float width )
192 return mVisual.GetHeightForWidth( width );
196 return Control::GetHeightForWidth( width );
200 float ImageView::GetWidthForHeight( float height )
204 return mVisual.GetWidthForHeight( height );
208 return Control::GetWidthForHeight( height );
212 void ImageView::OnRelayout( const Vector2& size, RelayoutContainer& container )
214 Control::OnRelayout( size, container );
218 // Pass in an empty map which uses default transform values meaning our visual fills the control
219 // Should provide a transform that handles aspect ratio according to image size
220 mVisual.SetTransformAndSize( Property::Map(), size );
224 ///////////////////////////////////////////////////////////
229 void ImageView::SetProperty( BaseObject* object, Property::Index index, const Property::Value& value )
231 Toolkit::ImageView imageView = Toolkit::ImageView::DownCast( Dali::BaseHandle( object ) );
235 ImageView& impl = GetImpl( imageView );
238 case Toolkit::ImageView::Property::RESOURCE_URL:
240 std::string imageUrl;
241 if( value.Get( imageUrl ) )
243 impl.SetImage( imageUrl, ImageDimensions() );
248 case Toolkit::ImageView::Property::IMAGE:
250 std::string imageUrl;
252 if( value.Get( imageUrl ) )
254 impl.SetImage( imageUrl, ImageDimensions() );
256 // if its not a string then get a Property::Map from the property if possible.
259 map = value.GetMap();
262 Property::Value* shaderValue = map->Find( Toolkit::DevelVisual::Property::SHADER, CUSTOM_SHADER );
263 // set image only if property map contains image information other than custom shader
264 if( map->Count() > 1u || !shaderValue )
266 impl.SetImage( *map );
268 // the property map contains only the custom shader
269 else if( ( impl.mVisual )&&( map->Count() == 1u )&&( shaderValue ) )
271 Property::Map* shaderMap = shaderValue->GetMap();
274 Internal::Visual::Base& visual = Toolkit::GetImplementation( impl.mVisual );
275 visual.SetCustomShader( *shaderMap );
276 if( imageView.OnStage() )
278 // force to create new core renderer to use the newly set shader
279 visual.SetOffStage( imageView );
280 visual.SetOnStage( imageView );
289 case Toolkit::ImageView::Property::PRE_MULTIPLIED_ALPHA:
292 if( value.Get( isPre ) )
294 impl.EnablePreMultipliedAlpha( isPre );
302 Property::Value ImageView::GetProperty( BaseObject* object, Property::Index propertyIndex )
304 Property::Value value;
306 Toolkit::ImageView imageview = Toolkit::ImageView::DownCast( Dali::BaseHandle( object ) );
310 ImageView& impl = GetImpl( imageview );
311 switch ( propertyIndex )
313 case Toolkit::ImageView::Property::RESOURCE_URL:
315 if ( !impl.mUrl.empty() )
322 case Toolkit::ImageView::Property::IMAGE:
324 if ( !impl.mUrl.empty() )
328 else if( impl.mImage )
331 Scripting::CreatePropertyMap( impl.mImage, map );
334 else if( !impl.mPropertyMap.Empty() )
336 value = impl.mPropertyMap;
341 case Toolkit::ImageView::Property::PRE_MULTIPLIED_ALPHA:
343 value = impl.IsPreMultipliedAlphaEnabled();
352 } // namespace Internal
353 } // namespace Toolkit