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 <dali/internal/event/images/resource-image-impl.h>
22 #include <cstring> // for strcmp
25 #include <dali/public-api/common/dali-common.h>
26 #include <dali/public-api/object/type-registry.h>
27 #include <dali/integration-api/debug.h>
28 #include <dali/internal/event/common/thread-local-storage.h>
29 #include <dali/internal/event/images/image-factory.h>
30 #include <dali/internal/event/images/nine-patch-image-impl.h>
31 #include <dali/internal/event/common/stage-impl.h>
33 using namespace Dali::Integration;
46 const char* const SIGNAL_IMAGE_LOADING_FINISHED = "imageLoadingFinished";
48 BaseHandle CreateImage()
50 ImagePtr image = ResourceImage::New();
51 return Dali::Image(image.Get());
54 TypeRegistration mType( typeid( Dali::ResourceImage ), typeid( Dali::Image ), CreateImage );
56 Dali::SignalConnectorType signalConnector1( mType, SIGNAL_IMAGE_LOADING_FINISHED, &ResourceImage::DoConnectSignal );
60 ResourceImage::ResourceImage()
62 mImageFactory( ThreadLocalStorage::Get().GetImageFactory() )
66 ResourceImagePtr ResourceImage::New()
68 ResourceImagePtr image = new ResourceImage;
73 ResourceImagePtr ResourceImage::New( const std::string& url, const ImageAttributes& attributes )
75 ResourceImagePtr image;
76 if( NinePatchImage::IsNinePatchUrl( url ) )
78 image = NinePatchImage::New( url );
82 image = new ResourceImage();
85 // consider the requested size as natural size, 0 means we don't (yet) know it
86 image->mWidth = attributes.GetWidth();
87 image->mHeight = attributes.GetHeight();
88 image->mRequest = image->mImageFactory.RegisterRequest( url, &attributes );
89 image->mTicket = image->mImageFactory.Load( *image->mRequest.Get() );
90 image->mTicket->AddObserver( *image );
92 DALI_LOG_SET_OBJECT_STRING( image, url );
97 ResourceImage::~ResourceImage()
101 mTicket->RemoveObserver( *this );
102 if( Stage::IsInstalled() )
104 mImageFactory.ReleaseTicket( mTicket.Get() );
110 bool ResourceImage::DoConnectSignal( BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor )
112 bool connected( true );
113 DALI_ASSERT_DEBUG( dynamic_cast<ResourceImage*>( object ) && "Resource ticket not ImageTicket subclass for image resource.\n" );
114 ResourceImage* image = static_cast<ResourceImage*>(object);
116 if( 0 == strcmp( signalName.c_str(), SIGNAL_IMAGE_LOADING_FINISHED ) )
118 image->LoadingFinishedSignal().Connect( tracker, functor );
122 // signalName does not match any signal
129 const ImageAttributes& ResourceImage::GetAttributes() const
133 return mImageFactory.GetActualAttributes( mTicket );
137 return mImageFactory.GetRequestAttributes( mRequest );
141 const std::string& ResourceImage::GetUrl() const
143 return mImageFactory.GetRequestPath( mRequest );
146 void ResourceImage::Reload()
150 ResourceTicketPtr ticket = mImageFactory.Reload( *mRequest.Get() );
151 SetTicket( ticket.Get() );
155 unsigned int ResourceImage::GetWidth() const
157 // if width is 0, it means we've not yet loaded the image
161 mImageFactory.GetImageSize( mRequest, mTicket, size );
165 mHeight = size.height;
171 unsigned int ResourceImage::GetHeight() const
176 mImageFactory.GetImageSize( mRequest, mTicket, size );
177 mHeight = size.height;
186 Vector2 ResourceImage::GetNaturalSize() const
188 Vector2 naturalSize(mWidth, mHeight);
189 if( 0u == mWidth || 0u == mHeight )
191 mImageFactory.GetImageSize( mRequest, mTicket, naturalSize );
192 mWidth = naturalSize.width;
193 mHeight = naturalSize.height;
198 void ResourceImage::ResourceLoadingFailed(const ResourceTicket& ticket)
200 mLoadingFinished.Emit( Dali::ResourceImage( this ) );
203 void ResourceImage::ResourceLoadingSucceeded(const ResourceTicket& ticket)
205 mLoadingFinished.Emit( Dali::ResourceImage( this ) );
208 void ResourceImage::Connect()
212 if( mConnectionCount == 1 )
214 // ticket was thrown away when related actors went offstage or image loading on demand
217 DALI_ASSERT_DEBUG( mRequest.Get() );
218 ResourceTicketPtr newTicket = mImageFactory.Load( *mRequest.Get() );
219 SetTicket( newTicket.Get() );
224 void ResourceImage::Disconnect()
231 DALI_ASSERT_DEBUG( mConnectionCount > 0 );
233 if( mConnectionCount == 0 )
235 // release image memory when it's not visible anymore (decrease ref. count of texture)
240 void ResourceImage::SetTicket( ResourceTicket* ticket )
242 if( ticket == mTicket.Get() )
249 mTicket->RemoveObserver( *this );
250 mImageFactory.ReleaseTicket( mTicket.Get() );
255 mTicket.Reset( ticket );
256 mTicket->AddObserver( *this );
264 } // namespace Internal