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::OnInitialize()
92 // ImageView can relayout in the OnImageReady, alternative to a signal would be to have a upcall from the Control to ImageView
93 Dali::Toolkit::Control handle( GetOwner() );
94 Toolkit::DevelControl::ResourceReadySignal( handle ).Connect( this, &ImageView::OnResourceReady );
97 void ImageView::SetImage( Image image )
99 // Don't bother comparing if we had a visual previously, just drop old visual and create new one
102 mPropertyMap.Clear();
104 Toolkit::Visual::Base visual = Toolkit::VisualFactory::Get().CreateVisual( image );
110 DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, visual );
113 void ImageView::SetImage( const Property::Map& map )
115 // Comparing a property map is too expensive so just creating a new visual
119 Toolkit::Visual::Base visual = Toolkit::VisualFactory::Get().CreateVisual( mPropertyMap );
120 // Don't set mVisual until it is ready and shown. Getters will still use current visual.
126 DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, visual );
129 void ImageView::SetImage( const std::string& url, ImageDimensions size )
131 // Don't bother comparing if we had a visual previously, just drop old visual and create new one
134 mPropertyMap.Clear();
136 // Don't set mVisual until it is ready and shown. Getters will still use current visual.
137 Toolkit::Visual::Base visual = Toolkit::VisualFactory::Get().CreateVisual( url, size );
143 DevelControl::RegisterVisual( *this, Toolkit::ImageView::Property::IMAGE, visual );
146 Image ImageView::GetImage() const
151 void ImageView::EnablePreMultipliedAlpha( bool preMultipled )
155 Toolkit::GetImplementation( mVisual ).EnablePreMultipliedAlpha( preMultipled );
159 bool ImageView::IsPreMultipliedAlphaEnabled() const
163 return Toolkit::GetImplementation( mVisual ).IsPreMultipliedAlphaEnabled();
168 void ImageView::SetDepthIndex( int depthIndex )
172 mVisual.SetDepthIndex( depthIndex );
176 void ImageView::OnStageConnection( int depth )
180 mImage.UploadedSignal().Emit( mImage );
183 Dali::ResourceImage resourceImage = Dali::ResourceImage::DownCast( mImage );
186 resourceImage.LoadingFinishedSignal().Emit( resourceImage );
189 Control::OnStageConnection( depth ); // Enabled visuals will be put on stage
192 Vector3 ImageView::GetNaturalSize()
196 Vector2 rendererNaturalSize;
197 mVisual.GetNaturalSize( rendererNaturalSize );
198 return Vector3( rendererNaturalSize );
201 // if no visual then use Control's natural size
202 return Control::GetNaturalSize();
205 float ImageView::GetHeightForWidth( float width )
209 return mVisual.GetHeightForWidth( width );
213 return Control::GetHeightForWidth( width );
217 float ImageView::GetWidthForHeight( float height )
221 return mVisual.GetWidthForHeight( height );
225 return Control::GetWidthForHeight( height );
229 void ImageView::OnRelayout( const Vector2& size, RelayoutContainer& container )
231 Control::OnRelayout( size, container );
235 // Pass in an empty map which uses default transform values meaning our visual fills the control
236 // Should provide a transform that handles aspect ratio according to image size
237 mVisual.SetTransformAndSize( Property::Map(), size );
241 void ImageView::OnResourceReady( Toolkit::Control control )
243 mVisual = DevelControl::GetVisual( *this, Toolkit::ImageView::Property::IMAGE );
246 ///////////////////////////////////////////////////////////
251 void ImageView::SetProperty( BaseObject* object, Property::Index index, const Property::Value& value )
253 Toolkit::ImageView imageView = Toolkit::ImageView::DownCast( Dali::BaseHandle( object ) );
257 ImageView& impl = GetImpl( imageView );
260 case Toolkit::ImageView::Property::RESOURCE_URL:
262 std::string imageUrl;
263 if( value.Get( imageUrl ) )
265 impl.SetImage( imageUrl, ImageDimensions() );
270 case Toolkit::ImageView::Property::IMAGE:
272 std::string imageUrl;
274 if( value.Get( imageUrl ) )
276 impl.SetImage( imageUrl, ImageDimensions() );
278 // if its not a string then get a Property::Map from the property if possible.
281 map = value.GetMap();
284 Property::Value* shaderValue = map->Find( Toolkit::DevelVisual::Property::SHADER, CUSTOM_SHADER );
285 // set image only if property map contains image information other than custom shader
286 if( map->Count() > 1u || !shaderValue )
288 impl.SetImage( *map );
290 // the property map contains only the custom shader
291 else if( ( impl.mVisual )&&( map->Count() == 1u )&&( shaderValue ) )
293 Property::Map* shaderMap = shaderValue->GetMap();
296 Internal::Visual::Base& visual = Toolkit::GetImplementation( impl.mVisual );
297 visual.SetCustomShader( *shaderMap );
298 if( imageView.OnStage() )
300 // force to create new core renderer to use the newly set shader
301 visual.SetOffStage( imageView );
302 visual.SetOnStage( imageView );
311 case Toolkit::ImageView::Property::PRE_MULTIPLIED_ALPHA:
314 if( value.Get( isPre ) )
316 impl.EnablePreMultipliedAlpha( isPre );
324 Property::Value ImageView::GetProperty( BaseObject* object, Property::Index propertyIndex )
326 Property::Value value;
328 Toolkit::ImageView imageview = Toolkit::ImageView::DownCast( Dali::BaseHandle( object ) );
332 ImageView& impl = GetImpl( imageview );
333 switch ( propertyIndex )
335 case Toolkit::ImageView::Property::RESOURCE_URL:
337 if ( !impl.mUrl.empty() )
344 case Toolkit::ImageView::Property::IMAGE:
346 if ( !impl.mUrl.empty() )
350 else if( impl.mImage )
353 Scripting::CreatePropertyMap( impl.mImage, map );
356 else if( !impl.mPropertyMap.Empty() )
358 value = impl.mPropertyMap;
363 case Toolkit::ImageView::Property::PRE_MULTIPLIED_ALPHA:
365 value = impl.IsPreMultipliedAlphaEnabled();
374 } // namespace Internal
375 } // namespace Toolkit