Package com.bric.multislider

Class PlafPaintUtils

java.lang.Object

com.bric.multislider.PlafPaintUtils

public class PlafPaintUtils
extends Object

Some static methods for some common painting functions.

Author:

Jeremy Wood

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static Color[]	blacks	Four shades of black, each with increasing opacity.
(package private) static Color[]	whites	Four shades of white, each with increasing opacity.

Constructor Summary

Constructors

Constructor	Description
PlafPaintUtils()

Method Summary

Modifier and Type	Method	Description
static void	drawBevel(Graphics2D g, Rectangle r)	Uses translucent shades of white and black to draw highlights and shadows around a rectangle, and then frames the rectangle with a shade of gray (120).
static TexturePaint	getCheckerBoard(int checkerSize)
static TexturePaint	getCheckerBoard(int checkerSize, Color color1, Color color2)
static Color	getFocusRingColor()
(package private) static Paint	getVerticalGradient(String name, int height, int y, float[] positions, Color[] colors)	Create a vertical gradient.
static void	paintFocus(Graphics2D g, Shape shape, int pixelSize)	Paints 3 different strokes around a shape to indicate focus.
static void	paintFocus(Graphics2D g, Shape shape, int pixelSize, Color focusColor, boolean changeRenderingHints)	Paints 3 different strokes around a shape to indicate focus.

Methods inherited from class java.lang.Object

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

Field Detail

whites

static final Color[] whites

Four shades of white, each with increasing opacity.

blacks

static final Color[] blacks

Four shades of black, each with increasing opacity.

Constructor Detail

PlafPaintUtils

public PlafPaintUtils()

Method Detail

getFocusRingColor

public static Color getFocusRingColor()

Returns:

the color used to indicate when a component has focus. By default this uses the color (64,113,167), but you can override this by calling:
UIManager.put("focusRing",customColor);

paintFocus

public static void paintFocus(Graphics2D g,
                              Shape shape,
                              int pixelSize)

Paints 3 different strokes around a shape to indicate focus. The widest stroke is the most transparent, so this achieves a nice "glow" effect.

The catch is that you have to render this underneath the shape, and the shape should be filled completely.

Parameters:

g - the graphics to paint to

shape - the shape to outline

pixelSize - the number of pixels the outline should cover.

paintFocus

public static void paintFocus(Graphics2D g,
                              Shape shape,
                              int pixelSize,
                              Color focusColor,
                              boolean changeRenderingHints)

Paints 3 different strokes around a shape to indicate focus. The widest stroke is the most transparent, so this achieves a nice "glow" effect.

The catch is that you have to render this underneath the shape, and the shape should be filled completely.

Parameters:

g - the graphics to paint to

shape - the shape to outline

pixelSize - the number of pixels the outline should cover.

focusColor - the color of the focus ring to paint

changeRenderingHints - if true then the rendering hints will be modified, if false they will be left in tact

drawBevel

public static void drawBevel(Graphics2D g,
                             Rectangle r)

Uses translucent shades of white and black to draw highlights and shadows around a rectangle, and then frames the rectangle with a shade of gray (120).

This should be called to add a finishing touch on top of existing graphics.

Parameters:

g - the graphics to paint to.

r - the rectangle to paint.

getVerticalGradient

static Paint getVerticalGradient(String name,
                                 int height,
                                 int y,
                                 float[] positions,
                                 Color[] colors)

Create a vertical gradient. This gradient is stored in a table and reused throughout the rest of this session.

Parameters:

name - an identifying key for this gradient (used to cache it).

height - the height of the gradient

y - the y offset of the gradient

positions - the fractional positions of each color (between [0,1]).

colors - one color for each position.

Returns:

the vertical gradient.

getCheckerBoard

public static TexturePaint getCheckerBoard(int checkerSize)

getCheckerBoard

public static TexturePaint getCheckerBoard(int checkerSize,
                                           Color color1,
                                           Color color2)