com.mxgraph.shape
Class mxStencil

java.lang.Object
  com.mxgraph.shape.mxStencil

All Implemented Interfaces:

mxIShape

public class mxStencil
extends Object
implements mxIShape

Implements a stencil for the given XML definition. This class implements the mxGraph stencil schema.

Field Summary

protected String	aspect Holds the aspect of the shape.
protected Element	bgNode Holds the XML node with the stencil description.
protected Element	desc Holds the top-level node of the stencil definition.
protected Element	fgNode Holds the XML node with the stencil description.
protected double	h0 Holds the height of the shape.
protected double	lastMoveX Holds the last x-position of the cursor.
protected double	lastMoveY Holds the last y-position of the cursor.
protected String	strokewidth Holds the strokewidth direction from the description.
protected double	w0 Holds the width of the shape.

Constructor Summary

mxStencil(Element description)
Constructs a new stencil for the given mxGraph shape description.

Method Summary

protected mxRectangle	computeAspect(mxCellState state, mxRectangle bounds, String direction) Returns a rectangle that contains the offset in x and y and the horizontal and vertical scale in width and height used to draw this shape inside the given rectangle.
protected mxGraphicsCanvas2D	createCanvas(mxGraphics2DCanvas gc) Creates the canvas for rendering the stencil.
protected void	drawElement(mxGraphicsCanvas2D canvas, mxCellState state, Element node, mxRectangle aspect) Drawsthe given element.
protected void	drawShadow(mxGraphicsCanvas2D canvas, mxCellState state, double rotation, boolean flipH, boolean flipV, mxRectangle bounds, double alpha, boolean filled) Draws the shadow.
boolean	drawShape(mxGraphicsCanvas2D canvas, mxCellState state, mxRectangle bounds, boolean background) Draws this stencil inside the given bounds.
String	evaluateAttribute(Element elt, String attribute, mxCellState state) Gets the attribute for the given name from the given node.
Element	getDescription() Returns the description.
protected double	getDouble(Element elt, String attribute) Returns the given attribute or 0.
protected double	getDouble(Element elt, String attribute, double defaultValue) Returns the given attribute or the default value.
protected int	getInt(Element elt, String attribute, int defaultValue) Returns the given attribute or the default value.
protected String	getString(Element elt, String attribute, String defaultValue) Returns the given attribute or the default value.
void	paintShape(mxGraphics2DCanvas gc, mxCellState state) Paints the stencil for the given state.
protected void	parseDescription() Parses the description of this shape.
void	setDescription(Element value) Sets the description.

Methods inherited from class java.lang.Object

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

Field Detail

desc

protected Element desc

Holds the top-level node of the stencil definition.

aspect

protected String aspect

Holds the aspect of the shape. Default is "auto".

w0

protected double w0

Holds the width of the shape. Default is 100.

h0

protected double h0

Holds the height of the shape. Default is 100.

bgNode

protected Element bgNode

Holds the XML node with the stencil description.

fgNode

protected Element fgNode

Holds the XML node with the stencil description.

strokewidth

protected String strokewidth

Holds the strokewidth direction from the description.

lastMoveX

protected double lastMoveX

Holds the last x-position of the cursor.

lastMoveY

protected double lastMoveY

Holds the last y-position of the cursor.

Constructor Detail

mxStencil

public mxStencil(Element description)

Constructs a new stencil for the given mxGraph shape description.

Method Detail

getDescription

public Element getDescription()

Returns the description.

setDescription

public void setDescription(Element value)

Sets the description.

createCanvas

protected mxGraphicsCanvas2D createCanvas(mxGraphics2DCanvas gc)

Creates the canvas for rendering the stencil.

paintShape

public void paintShape(mxGraphics2DCanvas gc,
                       mxCellState state)

Paints the stencil for the given state.

Specified by:

paintShape in interface mxIShape

drawShadow

protected void drawShadow(mxGraphicsCanvas2D canvas,
                          mxCellState state,
                          double rotation,
                          boolean flipH,
                          boolean flipV,
                          mxRectangle bounds,
                          double alpha,
                          boolean filled)

Draws the shadow.

drawShape

public boolean drawShape(mxGraphicsCanvas2D canvas,
                         mxCellState state,
                         mxRectangle bounds,
                         boolean background)

Draws this stencil inside the given bounds.

computeAspect

protected mxRectangle computeAspect(mxCellState state,
                                    mxRectangle bounds,
                                    String direction)

Returns a rectangle that contains the offset in x and y and the horizontal and vertical scale in width and height used to draw this shape inside the given rectangle.

drawElement

protected void drawElement(mxGraphicsCanvas2D canvas,
                           mxCellState state,
                           Element node,
                           mxRectangle aspect)

Drawsthe given element.

getInt

protected int getInt(Element elt,
                     String attribute,
                     int defaultValue)

Returns the given attribute or the default value.

getDouble

protected double getDouble(Element elt,
                           String attribute)

Returns the given attribute or 0.

getDouble

protected double getDouble(Element elt,
                           String attribute,
                           double defaultValue)

Returns the given attribute or the default value.

getString

protected String getString(Element elt,
                           String attribute,
                           String defaultValue)

Returns the given attribute or the default value.

parseDescription

protected void parseDescription()

Parses the description of this shape.

evaluateAttribute

public String evaluateAttribute(Element elt,
                                String attribute,
                                mxCellState state)

Gets the attribute for the given name from the given node. If the attribute does not exist then the text content of the node is evaluated and if it is a function it is invoked with as the only argument and the return value is used as the attribute value to be returned.