gishur.gui2.painter
Class PolygonPainter

java.lang.Object
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  +--gishur.gui2.Painter
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        +--gishur.gui2.painter.PolygonPainter

public class PolygonPainter

extends Painter

A Painter for the inner area of polygons. A complete polygon including activatable border lines, vertex points etc. should be handled by a DisplayXPolygon (assumed you want to display it), this Painter class only draws the inner coloured area of a polygon, i.e. a sole naked coloured area with polygon shape. One of their tasks is to calculate the area of the screen which has to be drawn if an object using this PolygonPainter must be redrawn. For this purpose, the method recalculate(gishur.gui2.RenderContext, gishur.gui2.PropertyStatusReader, gishur.core.Parameters) must be called with the point's properties, location etc. as arguments. The other task is to perform the drawing operation with draw(java.awt.Graphics, gishur.gui2.RenderContext, gishur.gui2.PropertyStatusReader, byte), using the color specified by the property xpolygon.inner.color, which can be set by calling the DrawAtom.setProperty(java.lang.String, java.lang.Object)-method.

Properties Summary

Key	Value Type	Default value	Meaning
color	java.awt.Color	java.awt.Color.green	The colour of the inner area of this polygon.

Version:

1.0

Author:

Christoph Sachse

Fields inherited from class gishur.gui2.Painter

LEVEL_0, LEVEL_1, LEVEL_2, LEVEL_3, LEVEL_ALL, LEVEL_BITS_USED, LEVEL_DEFAULT, LEVEL_FIRST, LEVEL_LAST, LOCATEABLE, VISIBLE

Constructor Summary

PolygonPainter()
Empty and only constructor.

Method Summary

void	draw(java.awt.Graphics g, RenderContext context, PropertyStatusReader prop, byte level) Draws the specified level of this Painter using the given Graphics object and RenderContext for drawing, and the given PropertyStatusReader for reading properties.
protected void	recalculate(RenderContext context, PropertyStatusReader prop, Parameters param) Recalculates this Painter using the given RenderContext, PropertyStatusReader, local point information and other parameters.

Methods inherited from class gishur.gui2.Painter

addBounds, addBounds, alignTo, alignTo, calculateDockingPoint, contains, getAlignmentPoint, getRelativeAlignmentPoint, height, isOnLevel, level, locateable, name, outline, reshape, setBounds, setBounds, setLevel, setLocation, setName, setOutline, setSubTypePrefix, style, visible, width, x, y

Methods inherited from class java.lang.Object

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

Constructor Detail

PolygonPainter

public PolygonPainter()

Empty and only constructor. It only creates a PolygonShape-object which will furthermore store the size and shape of this polygon and provide special drawing functionality.

Method Detail

recalculate

protected void recalculate(RenderContext context,
                           PropertyStatusReader prop,
                           Parameters param)

Recalculates this Painter using the given RenderContext, PropertyStatusReader, local point information and other parameters.

Overrides:

recalculate in class Painter

Parameters:

context - the RenderContext to use

prop - the PropertyStatusReader to use for reading properties

param - a Parameters-object for location and other parameters parsed by the DisplayObject, that uses this Painter.

draw

public void draw(java.awt.Graphics g,
                 RenderContext context,
                 PropertyStatusReader prop,
                 byte level)

Draws the specified level of this Painter using the given Graphics object and RenderContext for drawing, and the given PropertyStatusReader for reading properties.

Overrides:

draw in class Painter

Parameters:

g - the Graphics to draw on

context - the RenderContext to use

prop - the PropertyStatusReader to use for reading properties

level - the level to draw