jcckit.renderer

Class Graphics2DRenderer

java.lang.Object

jcckit.renderer.Graphics2DRenderer

All Implemented Interfaces:

GraphicalCompositeRenderer, OvalRenderer, PolygonRenderer, RectangleRenderer, Renderer, TextRenderer

public class Graphics2DRenderer
extends Object
implements GraphicalCompositeRenderer, PolygonRenderer, OvalRenderer, TextRenderer, RectangleRenderer

Renderer who draws the GraphicalElements into a java.awt.Graphics2D context.

The default color for lines and texts is determined by the current color of the Graphics2D context when a new instance of Graphics2DRenderer is created.

The default font is SansSerif-12.

Author:

Franz-Josef Elmer

Constructor Summary

Constructors

Constructor and Description
Graphics2DRenderer()

Method Summary

Modifier and Type	Method and Description
void	finishRendering(GraphicalComposite composite) Finishes rendering of the specified composite.
Graphics2DRenderer	init(Graphics2D graphics) Initializes this instance.
void	render(Oval oval) Paints the specified oval into the current Graphics context.
void	render(Polygon polygon) Paints the specified polygon into the Graphics2D context.
void	render(Rectangle rectangle) Paints the specified rectangle into the current Graphics context.
void	render(Text text) Paints the specified text into the current Graphics context.
void	startRendering(GraphicalComposite composite) Starts rendering of the specified composite.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Graphics2DRenderer

public Graphics2DRenderer()

Method Detail

init

public Graphics2DRenderer init(Graphics2D graphics)

Initializes this instance. During renderering the current transformation will be leaved unchanged. But the current Clip may be cleared.

Parameters:

graphics - Graphics2D context into which the BaiscGraphicalElements are painted.

Returns:

this instance.

startRendering

public void startRendering(GraphicalComposite composite)

Starts rendering of the specified composite. Does nothing except if composite has a ClippingShape. In this case the Clip of the Graphics2D context becomes the clipping rectangle determined by the bounding box of the ClippingShape.

Specified by:

startRendering in interface GraphicalCompositeRenderer

finishRendering

public void finishRendering(GraphicalComposite composite)

Finishes rendering of the specified composite. Does nothing except if composite has a ClippingShape. In this case the Clip of the Graphics2D context will be cleared.

Specified by:

finishRendering in interface GraphicalCompositeRenderer

render

public void render(Polygon polygon)

Paints the specified polygon into the Graphics2D context.

Specified by:

render in interface PolygonRenderer

render

public void render(Rectangle rectangle)

Paints the specified rectangle into the current Graphics context.

Specified by:

render in interface RectangleRenderer

render

public void render(Oval oval)

Paints the specified oval into the current Graphics context.

Specified by:

render in interface OvalRenderer

render

public void render(Text text)

Paints the specified text into the current Graphics context.

If the font size is zero the default font size will be used.

If the orientation angle is unequal zero the text will first be painted into an off-screen image and rotated. Finally, it will be drawn into the current Graphics context. Note, that only integer multiples of 90 degree rotation are performed. Other orientation angles will be adjusted to the nearest integer multiple of 90 degree.

Specified by:

render in interface TextRenderer