C++ 扩展：图像提供程序范例

文件：

• declarative/cppextensions/imageprovider/imageprovider-example.qml
• declarative/cppextensions/imageprovider/imageprovider.cpp
• declarative/cppextensions/imageprovider/imageprovider.pro
• declarative/cppextensions/imageprovider/imageprovider.qmlproject
• declarative/cppextensions/imageprovider/ImageProviderCore/qmldir