org.tigris.gef.base
Class LayerPolar

java.lang.Object
  org.tigris.gef.base.Layer
      org.tigris.gef.base.LayerPolar

All Implemented Interfaces:

java.io.Serializable

public class LayerPolar
extends Layer

This class is an example of the power of the Layer-based approach. This is a kind of background drawing guide (like LayerGrid) that emphasizes polar coordinates (instead of rectangular coordinates).

See Also:

Serialized Form

Field Summary

protected java.awt.Color	_bgColor The color of the space between the lines.
protected java.awt.Color	_lineColor The color of the grid lines

Fields inherited from class org.tigris.gef.base.Layer

_editors, _onMenu

Constructor Summary

LayerPolar()
Construct a new LayerPolar and name it "Grid".

LayerPolar(int x, int y, int s)
Make a new LayerPolar with the given origin and spacing

Method Summary

void	adjust() Change the appearance of this layer: vary the spacing and origin.
java.awt.Color	bgColor()
void	bgColor(java.awt.Color c)
int	dist(int x, int y) return the integer distance between a given point and the origin
java.util.Collection	getContents(java.util.Collection c) Get the figs that make up this layer.
java.awt.Color	lineColor()
void	lineColor(java.awt.Color c)
void	origin(int x, int y) Set the origin
void	paintContents(java.awt.Graphics g) Paint concentric circles around the origin with each circle a certain spacing from the previous one
Fig	presentationFor(java.lang.Object obj) Given an object from the net-level model (e.g., NetNode or NetPort), reply the graphical depiction of that object in this layer, if there is one.
void	spacing(int s) Set the spacing between lines

Methods inherited from class org.tigris.gef.base.Layer

add, addEditor, bringForward, bringInFrontOf, bringToFront, calcDrawingArea, clone, damageAll, deleted, elements, elementsIn, getContents, getContentsEdgesOnly, getContentsNoEdges, getEditors, getGrayed, getHidden, getLocked, getName, getOnMenu, getPerspectiveType, getScale, hit, isAlwaysOnTop, nodesIn, paint, paint, paintContents, paintGrayContents, postLoad, postSave, preSave, print, refreshEditors, remove, removeAll, removeEditor, reorder, sendBackward, sendToBack, setAlwaysOnTop, setGrayed, setHidden, setLocked, setName, setOnMenu, setPerspectiveType, setScale, toString

Methods inherited from class java.lang.Object

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

Field Detail

_lineColor

protected java.awt.Color _lineColor

The color of the grid lines

_bgColor

protected java.awt.Color _bgColor

The color of the space between the lines.

Needs-More-Work: null should mean the space between the lines is transparent. But that does not work with image stamps.

Constructor Detail

LayerPolar

public LayerPolar()

Construct a new LayerPolar and name it "Grid". Needs-More-Work: maybe the 'grid' should be named 'drawing guide' instead of 'grid' since 'grid' implies rectilinearity.

LayerPolar

public LayerPolar(int x,
                  int y,
                  int s)

Make a new LayerPolar with the given origin and spacing

Method Detail

origin

public void origin(int x,
                   int y)

Set the origin

spacing

public void spacing(int s)

Set the spacing between lines

dist

public int dist(int x,
                int y)

return the integer distance between a given point and the origin

lineColor

public void lineColor(java.awt.Color c)

lineColor

public java.awt.Color lineColor()

bgColor

public void bgColor(java.awt.Color c)

bgColor

public java.awt.Color bgColor()

getContents

public java.util.Collection getContents(java.util.Collection c)

Description copied from class: Layer

Get the figs that make up this layer.

Specified by:

getContents in class Layer

Parameters:

c - the collection in which to place the edges or null if a new collection should be created

Returns:

the figs

presentationFor

public Fig presentationFor(java.lang.Object obj)

Description copied from class: Layer

Given an object from the net-level model (e.g., NetNode or NetPort), reply the graphical depiction of that object in this layer, if there is one. Otherwise reply null.

Specified by:

presentationFor in class Layer

paintContents

public void paintContents(java.awt.Graphics g)

Paint concentric circles around the origin with each circle a certain spacing from the previous one

Specified by:

paintContents in class Layer

adjust

public void adjust()

Change the appearance of this layer: vary the spacing and origin. Needs-More-Work: should put up a dialog to ask the user to specify some parameters

Overrides:

adjust in class Layer

See Also:

LayerGrid