Class CairoImage

dgl/Cairo.hpp:44–120

Cairo Image class. TODO ... */

   TODO ...
 */
class CairoImage : public ImageBase
{
public:
   /**
      Constructor for a null Image.
    */
    CairoImage();

   /**
      Constructor using raw image data.
      @note @a rawData must remain valid for the lifetime of this Image.
    */
    CairoImage(const char* rawData, uint width, uint height, ImageFormat format);

   /**
      Constructor using raw image data.
      @note @a rawData must remain valid for the lifetime of this Image.
    */
    CairoImage(const char* rawData, const Size<uint>& size, ImageFormat format);

   /**
      Constructor using another image data.
    */
    CairoImage(const CairoImage& image);

   /**
      Destructor.
    */
    ~CairoImage() override;

   /**
      Load raw image data from memory.
      @note @a rawData must remain valid for the lifetime of this Image.
    */
    void loadFromMemory(const char* rawData,
                        const Size<uint>& size,
                        ImageFormat format = kImageFormatBGRA) noexcept override;

   /**
      Load PNG image from memory.
      Image size is read from PNG contents.
      @note @a pngData must remain valid for the lifetime of this Image.
    */
    void loadFromPNG(const char* pngData, uint dataSize) noexcept;

   /**
      Draw this image at position @a pos using the graphics context @a context.
    */
    void drawAt(const GraphicsContext& context, const Point<int>& pos) override;

   /**
      Get the cairo surface currently associated with this image.
      FIXME might be removed
    */
    inline cairo_surface_t* getSurface() const noexcept
    {
        return surface;
    }