PaintContext (Java 2 Platform SE 5.0) (original) (raw)

java.awt

Interface PaintContext

public interface PaintContext

The PaintContext interface defines the encapsulated and optimized environment to generate color patterns in device space for fill or stroke operations on a Graphics2D. The PaintContext provides the necessary colors for Graphics2D operations in the form of a Raster associated with a ColorModel. The PaintContext maintains state for a particular paint operation. In a multi-threaded environment, several contexts can exist simultaneously for a single Paint object.

See Also:

Paint

Method Summary
void	dispose() Releases the resources allocated for the operation.
ColorModel	getColorModel() Returns the ColorModel of the output.
Raster	[getRaster](../../java/awt/PaintContext.html#getRaster%28int, int, int, int%29)(int x, int y, int w, int h) Returns a Raster containing the colors generated for the graphics operation.

Method Detail

dispose

void dispose()

Releases the resources allocated for the operation.

getColorModel

ColorModel getColorModel()

Returns the ColorModel of the output. Note that this ColorModel might be different from the hint specified in the [createContext](../../java/awt/Paint.html#createContext%28java.awt.image.ColorModel, java.awt.Rectangle, java.awt.geom.Rectangle2D, java.awt.geom.AffineTransform, java.awt.RenderingHints%29) method ofPaint. Not all PaintContext objects are capable of generating color patterns in an arbitraryColorModel.

Returns:

the ColorModel of the output.

getRaster

Raster getRaster(int x, int y, int w, int h)

Returns a Raster containing the colors generated for the graphics operation.

Parameters:

x - the x coordinate of the area in device space for which colors are generated.

y - the y coordinate of the area in device space for which colors are generated.

w - the width of the area in device space

h - the height of the area in device space

Returns:

a Raster representing the specified rectangular area and containing the colors generated for the graphics operation.

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.