Package com.intellij.util.ui

Interface RegionPainter<T>

All Known Implementing Classes:

ButtonlessScrollBarUI.ThumbPainter, EffectPainter, RectanglePainter, RegionPainter.Alpha, RegionPainter.Image

public interface RegionPainter<T>

The RegionPainter interface defines exactly one method, paint. It is used in situations where the developer can change the painting routine of a component without having to resort to subclassing the component. It is also generically useful when doing any form of painting delegation.

Painters are simply encapsulations of Java2D code and make it fairly trivial to reuse existing painters or to combine them together. Implementations of this interface are also trivial to write, such that if you can't find a painter that does what you need, you can write one with minimal effort.

See Also:

• invalid reference

  com.sun.java.swing.Painter

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	RegionPainter.Alpha	This class provides a base functionality to paint a region with the specified alpha.
static class	RegionPainter.Image	This class provides a caching functionality for a region painter.

Method Summary

Modifier and Type	Method	Description
void	paint(Graphics2D g, int x, int y, int width, int height, T object)	Renders to the given Graphics2D object.

Method Details

paint

void paint(Graphics2D g,
 int x,
 int y,
 int width,
 int height,
 T object)

Renders to the given Graphics2D object.

Parameters:

g - the Graphics2D object to render to

x - X position of the area to paint

y - Y position of the area to paint

width - width of the area to paint

height - height of the area to paint

object - an optional configuration parameter