2 * Copyright (c) 2015 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 = "image-loading-finished";
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( LoadPolicy loadPol, ReleasePolicy releasePol )
61 : Image( releasePol ),
62 mImageFactory( ThreadLocalStorage::Get().GetImageFactory() ),
67 ResourceImagePtr ResourceImage::New()
69 ResourceImagePtr image = new ResourceImage;
74 ResourceImagePtr ResourceImage::New( const std::string& url, const ImageAttributes& attributes, LoadPolicy loadPol, ReleasePolicy releasePol )
76 ResourceImagePtr image;
77 if( IsNinePatch( url ) )
79 image = NinePatchImage::New( url, attributes, releasePol );
83 image = new ResourceImage( loadPol, releasePol );
86 // consider the requested size as natural size, 0 means we don't (yet) know it
87 image->mWidth = attributes.GetWidth();
88 image->mHeight = attributes.GetHeight();
89 image->mRequest = image->mImageFactory.RegisterRequest( url, &attributes );
91 if( Dali::ResourceImage::IMMEDIATE == loadPol )
93 // Trigger loading of the image on a as soon as it can be done
94 image->mTicket = image->mImageFactory.Load( *image->mRequest.Get() );
95 image->mTicket->AddObserver( *image );
98 DALI_LOG_SET_OBJECT_STRING( image, url );
103 ResourceImage::~ResourceImage()
107 mTicket->RemoveObserver( *this );
108 if( Stage::IsInstalled() )
110 mImageFactory.ReleaseTicket( mTicket.Get() );
116 bool ResourceImage::DoConnectSignal( BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor )
118 bool connected( true );
119 DALI_ASSERT_DEBUG( dynamic_cast<ResourceImage*>( object ) && "Resource ticket not ImageTicket subclass for image resource.\n" );
120 ResourceImage* image = static_cast<ResourceImage*>(object);
122 if( 0 == strcmp( signalName.c_str(), SIGNAL_IMAGE_LOADING_FINISHED ) )
124 image->LoadingFinishedSignal().Connect( tracker, functor );
128 // signalName does not match any signal
135 const ImageAttributes& ResourceImage::GetAttributes() const
139 return mImageFactory.GetActualAttributes( mTicket );
143 return mImageFactory.GetRequestAttributes( mRequest );
147 const std::string& ResourceImage::GetUrl() const
149 return mImageFactory.GetRequestPath( mRequest );
152 void ResourceImage::Reload()
156 ResourceTicketPtr ticket = mImageFactory.Reload( *mRequest.Get() );
157 SetTicket( ticket.Get() );
161 unsigned int ResourceImage::GetWidth() const
163 // if width is 0, it means we've not yet loaded the image
167 mImageFactory.GetImageSize( mRequest, mTicket, size );
171 mHeight = size.height;
177 unsigned int ResourceImage::GetHeight() const
182 mImageFactory.GetImageSize( mRequest, mTicket, size );
183 mHeight = size.height;
192 Vector2 ResourceImage::GetNaturalSize() const
194 Vector2 naturalSize(mWidth, mHeight);
195 if( 0u == mWidth || 0u == mHeight )
197 mImageFactory.GetImageSize( mRequest, mTicket, naturalSize );
198 mWidth = naturalSize.width;
199 mHeight = naturalSize.height;
204 void ResourceImage::ResourceLoadingFailed(const ResourceTicket& ticket)
206 mLoadingFinished.Emit( Dali::ResourceImage( this ) );
209 void ResourceImage::ResourceLoadingSucceeded(const ResourceTicket& ticket)
211 mLoadingFinished.Emit( Dali::ResourceImage( this ) );
214 void ResourceImage::Connect()
218 if( mConnectionCount == 1 )
220 // ticket was thrown away when related actors went offstage or image loading on demand
223 DALI_ASSERT_DEBUG( mRequest.Get() );
224 ResourceTicketPtr newTicket = mImageFactory.Load( *mRequest.Get() );
225 SetTicket( newTicket.Get() );
230 void ResourceImage::Disconnect()
237 DALI_ASSERT_DEBUG( mConnectionCount > 0 );
239 if( mConnectionCount == 0 && mReleasePolicy == Dali::ResourceImage::UNUSED )
241 // release image memory when it's not visible anymore (decrease ref. count of texture)
246 bool ResourceImage::IsNinePatch( const std::string& url )
250 std::string::const_reverse_iterator iter = url.rbegin();
251 enum { SUFFIX, HASH, HASH_DOT, DONE } state = SUFFIX;
252 while(iter < url.rend())
262 else if(!isalnum(*iter))
270 if( *iter == '#' || *iter == '9' )
286 state = DONE; // Stop testing characters
306 void ResourceImage::SetTicket( ResourceTicket* ticket )
308 if( ticket == mTicket.Get() )
315 mTicket->RemoveObserver( *this );
316 mImageFactory.ReleaseTicket( mTicket.Get() );
321 mTicket.Reset( ticket );
322 mTicket->AddObserver( *this );
330 } // namespace Internal