Class ScalingLabelRenderer<N>

java.lang.Object

de.engehausen.treemap.swing.impl.ScalingLabelRenderer<N>

Type Parameters:

N - the type of node the rectangles work on.

All Implemented Interfaces:

IRectangleRenderer<N,Graphics2D,Color>

public class ScalingLabelRenderer<N>
extends Object
implements IRectangleRenderer<N,Graphics2D,Color>

Renders labels for rectangles scaled to fit the rectangles, keeping proportion of the font used.

Field Summary

Fields

Modifier and Type	Field	Description
protected final Font	font
protected final Color	highlight
protected final Color	normal
protected final boolean	showRoot

Constructor Summary

Constructors

Constructor	Description
ScalingLabelRenderer(Font aFont, Color aNormalColor, Color aHighlightColor)	Create the renderer using the given font and label colors.
ScalingLabelRenderer(Font aFont, Color aNormalColor, Color aHighlightColor, boolean showsRoot)	Create the renderer using the given font and label colors.

Method Summary

Modifier and Type	Method	Description
void	highlight(Graphics2D graphics, ITreeModel<IRectangle<N>> model, IRectangle<N> rectangle, IColorProvider<N,Color> colorProvider, ILabelProvider<N> labelProvider)
void	render(Graphics2D graphics, ITreeModel<IRectangle<N>> model, IRectangle<N> rectangle, IColorProvider<N,Color> colorProvider, ILabelProvider<N> labelProvider)
protected void	render(Graphics2D graphics, String text, Color color, IRectangle<N> bounds)	Renders a label for the given rectangle.
protected void	setupGraphics(Graphics2D graphics)	Sets up the graphics object for rendering the text.

Methods inherited from class java.lang.Object

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

Field Details

normal

protected final Color normal

highlight

protected final Color highlight

font

protected final Font font

showRoot

protected final boolean showRoot

Constructor Details

ScalingLabelRenderer

public ScalingLabelRenderer(Font aFont,
 Color aNormalColor,
 Color aHighlightColor)

Create the renderer using the given font and label colors. The root node is not labeled.

Parameters:

aFont - the font, must not be null.

aNormalColor - the color for painting the label when not selected, must not be null.

aHighlightColor - the color for painting the label when selected, must not be null.

ScalingLabelRenderer

public ScalingLabelRenderer(Font aFont,
 Color aNormalColor,
 Color aHighlightColor,
 boolean showsRoot)

Create the renderer using the given font and label colors.

Parameters:

aFont - the font, must not be null.

aNormalColor - the color for painting the label when not selected, must not be null.

aHighlightColor - the color for painting the label when selected, must not be null.

showsRoot - true if the root node label should be shown, false otherwise.

Method Details

render

public void render(Graphics2D graphics,
 ITreeModel<IRectangle<N>> model,
 IRectangle<N> rectangle,
 IColorProvider<N,Color> colorProvider,
 ILabelProvider<N> labelProvider)

Specified by:

render in interface IRectangleRenderer<N,Graphics2D,Color>

highlight

public void highlight(Graphics2D graphics,
 ITreeModel<IRectangle<N>> model,
 IRectangle<N> rectangle,
 IColorProvider<N,Color> colorProvider,
 ILabelProvider<N> labelProvider)

Specified by:

highlight in interface IRectangleRenderer<N,Graphics2D,Color>

render

protected void render(Graphics2D graphics,
 String text,
 Color color,
 IRectangle<N> bounds)

Renders a label for the given rectangle. The label is fitted into the rectangle if possible.

Parameters:

graphics - the graphics object to work on

text - the text to render

color - the color to use

bounds - the rectangle bounds

setupGraphics

protected void setupGraphics(Graphics2D graphics)

Sets up the graphics object for rendering the text. By default turns on the anti aliasing; if not wanted override this method.

Parameters:

graphics - the graphics to set up.