本文整理汇总了C++中DataTargetRef::providesUrl方法的典型用法代码示例。如果您正苦于以下问题：C++ DataTargetRef::providesUrl方法的具体用法？C++ DataTargetRef::providesUrl怎么用？C++ DataTargetRef::providesUrl使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类DataTargetRef的用法示例。
在下文中一共展示了DataTargetRef::providesUrl方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: if
ImageTargetFileQuartz::ImageTargetFileQuartz( DataTargetRef dataTarget, ImageSourceRef imageSource, ImageTarget::Options options, const std::string &extensionData )
: cocoa::ImageTargetCgImage( imageSource, options )
{
cocoa::SafeCfString uti = cocoa::createSafeCfString( extensionData );
mImageDest = NULL;
if( dataTarget->providesFilePath() ) {
cocoa::SafeCfString pathString = cocoa::createSafeCfString( dataTarget->getFilePath().string() );
const std::shared_ptr<__CFURL> urlRef( (__CFURL*)::CFURLCreateWithFileSystemPath( kCFAllocatorDefault, pathString.get(), kCFURLPOSIXPathStyle, false ), cocoa::safeCfRelease );
mImageDest = ::CGImageDestinationCreateWithURL( urlRef.get(), uti.get(), 1, NULL );
}
else if( dataTarget->providesUrl() ) {
std::shared_ptr<__CFURL> urlRef( (__CFURL*)cocoa::createCfUrl( dataTarget->getUrl() ), cocoa::safeCfRelease );
mImageDest = ::CGImageDestinationCreateWithURL( urlRef.get(), uti.get(), 1, NULL );
}
else { // we'll wrap a cinder::OStream in a CGDataConsumer for output
OStreamRef *ostreamRef = new OStreamRef( dataTarget->getStream() );
::CGDataConsumerCallbacks callbacks;
callbacks.putBytes = cgDataConsumerPutBytes;
callbacks.releaseConsumer = cgDataConsumerRelease;
std::shared_ptr<CGDataConsumer> consumer( ::CGDataConsumerCreate( ostreamRef, &callbacks ), ::CGDataConsumerRelease );
mImageDest = ::CGImageDestinationCreateWithDataConsumer( consumer.get(), uti.get(), 1, NULL );
}
if( ! mImageDest )
throw ImageIoExceptionFailedWrite();
setupImageDestOptions( options );
}