Class CairoSurface

public CairoSurface(int width,
                    int height)

Create a cairo_surface_t with specified width and height. The format will be ARGB32 with premultiplied alpha and native bit and word ordering.

public CairoSurface(int x,
                    int y,
                    int width,
                    int height)

public CairoSurface(SampleModel sm,
                    CairoSurface parent,
                    Rectangle bounds,
                    Point origin)

Create a Cairo Surface that is a subimage of another Cairo Surface

public void copyAreaNative(int x,
                           int y,
                           int width,
                           int height,
                           int dx,
                           int dy,
                           int stride)

Copy a portion of this surface to another area on the surface. The given parameters must be within bounds - count on a segfault otherwise.

Parameters:

x - The x coordinate of the area to be copied from.

y - The y coordinate of the area to be copied from.

width - The width of the area to be copied.

height - The height of the area to be copied.

dx - The destination x coordinate.

dy - The destination y coordinate.

stride - The scanline stride.

protected static SampleModel createCairoSampleModel(int w,
                                                    int h)

Creates a SampleModel that matches Cairo's native format

public Raster createChild(int parentX,
                          int parentY,
                          int width,
                          int height,
                          int childMinX,
                          int childMinY,
                          int[] bandList)

Overrides:

createChild in interface WritableRaster

public WritableRaster createCompatibleWritableRaster()

Overrides:

createCompatibleWritableRaster in interface Raster

public WritableRaster createCompatibleWritableRaster(int x,
                                                     int y,
                                                     int w,
                                                     int h)

Overrides:

createCompatibleWritableRaster in interface Raster

public Raster createTranslatedChild(int childMinX,
                                    int childMinY)

Overrides:

createTranslatedChild in interface Raster

public WritableRaster createWritableChild(int parentX,
                                          int parentY,
                                          int w,
                                          int h,
                                          int childMinX,
                                          int childMinY,
                                          int[] bandList)

Overrides:

createWritableChild in interface WritableRaster

public WritableRaster createWritableTranslatedChild(int x,
                                                    int y)

Overrides:

createWritableTranslatedChild in interface WritableRaster

public void dispose()

Dispose of the native data.

protected void finalize()

Call dispose() to clean up any native resources allocated.

Overrides:

finalize in interface Object

public static BufferedImage getBufferedImage(CairoSurface surface)

Returns a BufferedImage backed by a Cairo surface.

public static BufferedImage getBufferedImage(GtkImage image)

Returns a BufferedImage backed by a Cairo surface, created from a GtkImage.

public static BufferedImage getBufferedImage(int width,
                                             int height)

Returns a BufferedImage backed by a Cairo surface.

public int[] getData()

Convenience method to quickly grab the data array backing this Raster.

Returns:

The array behind the databuffer.

public Graphics2D getGraphics()

Return a Graphics2D drawing to the CairoSurface.

public GtkImage getGtkImage()

Return a GtkImage from this Cairo surface.

public static boolean isCompatibleColorModel(ColorModel cm)

Returns whether this ColorModel is compatible with Cairo's native types.

Parameters:

cm - The color model to check.

Returns:

Whether it is compatible.

public static boolean isCompatibleSampleModel(SampleModel sm)

Returns whether this SampleModel is compatible with Cairo's native types.

Parameters:

sm - The sample model to check.

Returns:

Whether it is compatible.

public void nativeDrawSurface(long surfacePointer,
                              long contextPointer,
                              double[] i2u,
                              double alpha,
                              int interpolation)

Draws this image to a given CairoGraphics context, with an affine transform given by i2u.

public long newCairoContext()