java.awt
Interface PaintContext
- All Known Implementing Classes:
- ColorPaintContext, TexturePaintContext, GradientPaintContext
- public abstract 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. |
java.awt.image.ColorModel |
getColorModel()
Returns the ColorModel of the output. |
java.awt.image.Raster |
getRaster(int x,
int y,
int w,
int h)
Returns a Raster containing the colors generated for
the graphics operation. |
dispose
public void dispose()
- Releases the resources allocated for the operation.
getColorModel
public java.awt.image.ColorModel getColorModel()
- Returns the
ColorModel
of the output. Note that
this ColorModel
might be different from the hint
specified in the
createContext method of
Paint
. Not all PaintContext
objects are
capable of generating color patterns in an arbitrary
ColorModel
.
- Returns:
- the
ColorModel
of the output.
getRaster
public java.awt.image.Raster getRaster(int x,
int y,
int w,
int h)
- Returns a
Raster
containing the colors generated for
the graphics operation.
- Parameters:
x, y
- the coordinates of the area in device space
for which colors are generated.w
- the width of the area in device spaceh
- 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.