org.jhotdraw.draw
Class TriangleFigure

java.lang.Object
  org.jhotdraw.beans.AbstractBean
      org.jhotdraw.draw.AbstractFigure
          org.jhotdraw.draw.AbstractAttributedFigure
              org.jhotdraw.draw.TriangleFigure

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, Figure, DOMStorable

public class TriangleFigure
extends AbstractAttributedFigure

A triangle with same dimensions as its enclosing rectangle, and apex at any of 8 places

Version:

1.0 2006-03-27 Created.

Author:

Werner Randelshofer

See Also:

Serialized Form

Field Summary

Fields inherited from class org.jhotdraw.draw.AbstractFigure

changingDepth, listenerList

Fields inherited from class org.jhotdraw.beans.AbstractBean

propertySupport

Constructor Summary

TriangleFigure()
Creates a new instance.

TriangleFigure(AttributeKeys.Orientation direction)

TriangleFigure(double x, double y, double width, double height)

TriangleFigure(double x, double y, double width, double height, AttributeKeys.Orientation direction)

Method Summary

java.awt.geom.Point2D.Double	chop(java.awt.geom.Point2D.Double p)
TriangleFigure	clone() Returns a clone of the figure, with clones of all aggregated figures, such as chilrend and decorators.
boolean	contains(java.awt.geom.Point2D.Double p) Checks if a Point2D.Double is inside the figure.
java.util.Collection<Handle>	createHandles(int detailLevel) Creates handles used to manipulate the figure.
protected void	drawFill(java.awt.Graphics2D g) This method is called by method draw() to draw the fill area of the figure.
protected void	drawStroke(java.awt.Graphics2D g) This method is called by method draw() to draw the text of the figure .
Connector	findCompatibleConnector(Connector c, boolean isStartConnector) Gets a compatible connector.
Connector	findConnector(java.awt.geom.Point2D.Double p, ConnectionFigure prototype) Returns the Figures connector for the specified location.
BezierPath	getBezierPath()
java.awt.geom.Rectangle2D.Double	getBounds() Returns the Figures connector for the specified location.
java.awt.geom.Rectangle2D.Double	getDrawingArea() Returns the drawing area of the figure as a Rectangle.
java.lang.Object	getTransformRestoreData() Gets data which can be used to restore the transformation of the figure without loss of precision, after a transform has been applied to it.
void	restoreTransformTo(java.lang.Object geometry) Restores the transform of the figure to a previously stored state.
void	setBounds(java.awt.geom.Point2D.Double anchor, java.awt.geom.Point2D.Double lead) Sets the logical and untransformed bounds of the figure.
void	transform(java.awt.geom.AffineTransform tx) Moves the Figure to a new location.

Methods inherited from class org.jhotdraw.draw.AbstractAttributedFigure

applyAttributesTo, draw, drawText, getAttribute, getAttributeKey, getAttributes, getAttributesRestoreData, getStroke, getStrokeMiterLimitFactor, hasAttribute, isAttributeEnabled, read, readAttributes, removeAttribute, restoreAttributesTo, setAttribute, setAttributeEnabled, setAttributes, write, writeAttributes

Methods inherited from class org.jhotdraw.draw.AbstractFigure

addFigureListener, addNotify, basicClone, canConnect, changed, findFigureInside, fireAreaInvalidated, fireAreaInvalidated, fireAreaInvalidated, fireAttributeChanged, fireFigureAdded, fireFigureChanged, fireFigureChanged, fireFigureChanged, fireFigureHandlesChanged, fireFigureRemoved, fireFigureRequestRemove, fireUndoableEditHappened, getActions, getChangingDepth, getConnectors, getCursor, getDecomposition, getDrawing, getEndPoint, getFontRenderContext, getLayer, getLock, getPreferredSize, getStartPoint, getTool, getToolTipText, handleDrop, handleMouseClick, includes, invalidate, isChanging, isRemovable, isSelectable, isTransformable, isVisible, remap, remap, removeFigureListener, removeNotify, requestRemove, setBounds, setRemovable, setSelectable, setTransformable, setVisible, toString, validate, willChange

Methods inherited from class org.jhotdraw.beans.AbstractBean

addPropertyChangeListener, addPropertyChangeListener, firePropertyChange, firePropertyChange, firePropertyChange, removePropertyChangeListener, removePropertyChangeListener

Methods inherited from class java.lang.Object

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

Constructor Detail

TriangleFigure

public TriangleFigure()

Creates a new instance.

TriangleFigure

public TriangleFigure(AttributeKeys.Orientation direction)

TriangleFigure

public TriangleFigure(double x,
                      double y,
                      double width,
                      double height)

TriangleFigure

public TriangleFigure(double x,
                      double y,
                      double width,
                      double height,
                      AttributeKeys.Orientation direction)

Method Detail

findConnector

public Connector findConnector(java.awt.geom.Point2D.Double p,
                               ConnectionFigure prototype)

Description copied from class: AbstractFigure

Returns the Figures connector for the specified location. By default a ChopBoxConnector is returned.

Specified by:

findConnector in interface Figure

Overrides:

findConnector in class AbstractFigure

Parameters:

p - the location of the connector.

prototype - The prototype used to create a connection or null if unknown. This allows for specific connectors for different connection figures.

See Also:

ChopRectangleConnector

findCompatibleConnector

public Connector findCompatibleConnector(Connector c,
                                         boolean isStartConnector)

Description copied from interface: Figure

Gets a compatible connector. If the provided connector is part of this figure, return the connector. If the provided connector is part of another figure, return a connector with the same semantics for this figure. Return null, if no compatible connector is available.

Specified by:

findCompatibleConnector in interface Figure

Overrides:

findCompatibleConnector in class AbstractFigure

getBounds

public java.awt.geom.Rectangle2D.Double getBounds()

Returns the Figures connector for the specified location. By default a ChopDiamondConnector is returned.

See Also:

ChopDiamondConnector

drawFill

protected void drawFill(java.awt.Graphics2D g)

Description copied from class: AbstractAttributedFigure

This method is called by method draw() to draw the fill area of the figure. AbstractAttributedFigure configures the Graphics2D object with the FILL_COLOR attribute before calling this method. If the FILL_COLOR attribute is null, this method is not called.

Specified by:

drawFill in class AbstractAttributedFigure

drawStroke

protected void drawStroke(java.awt.Graphics2D g)

Description copied from class: AbstractAttributedFigure

This method is called by method draw() to draw the text of the figure . AbstractAttributedFigure configures the Graphics2D object with the TEXT_COLOR attribute before calling this method. If the TEXT_COLOR attribute is null, this method is not called.

Specified by:

drawStroke in class AbstractAttributedFigure

createHandles

public java.util.Collection<Handle> createHandles(int detailLevel)

Description copied from interface: Figure

Creates handles used to manipulate the figure.

Specified by:

createHandles in interface Figure

Overrides:

createHandles in class AbstractFigure

Parameters:

detailLevel - The detail level of the handles. Usually this is 0 for bounding box handles and 1 for point handles.

Returns:

a Collection of handles

See Also:

Handle

getBezierPath

public BezierPath getBezierPath()

contains

public boolean contains(java.awt.geom.Point2D.Double p)

Checks if a Point2D.Double is inside the figure.

setBounds

public void setBounds(java.awt.geom.Point2D.Double anchor,
                      java.awt.geom.Point2D.Double lead)

Description copied from interface: Figure

Sets the logical and untransformed bounds of the figure.

This is used by Tool's which create a new Figure and by Tool's which connect a Figure to another Figure.

This is a basic operation which does not fire events. Use the following code sequence, if you need event firing:

 aFigure.willChange();
 aFigure.setBounds(...);
 aFigure.changed();
 

Specified by:

setBounds in interface Figure

Overrides:

setBounds in class AbstractFigure

Parameters:

anchor - the start point of the bounds

lead - the end point of the bounds

See Also:

Figure.getBounds()

getDrawingArea

public java.awt.geom.Rectangle2D.Double getDrawingArea()

Description copied from interface: Figure

Returns the drawing area of the figure as a Rectangle. The drawing area is used to improve the performance of GraphicView, for example for clipping of repaints and for clipping of mouse events.

The drawing area needs to be large enough, to take line width, line caps and other decorations into account that exceed the bounds of the Figure.

Specified by:

getDrawingArea in interface Figure

Overrides:

getDrawingArea in class AbstractAttributedFigure

chop

public java.awt.geom.Point2D.Double chop(java.awt.geom.Point2D.Double p)

transform

public void transform(java.awt.geom.AffineTransform tx)

Moves the Figure to a new location.

Parameters:

tx - the transformation matrix.

See Also:

Figure.getTransformRestoreData(), Figure.restoreTransformTo(java.lang.Object)

clone

public TriangleFigure clone()

Description copied from interface: Figure

Returns a clone of the figure, with clones of all aggregated figures, such as chilrend and decorators. The cloned figure does not clone the list of FigureListeners from its original.

Specified by:

clone in interface Figure

Overrides:

clone in class AbstractAttributedFigure

restoreTransformTo

public void restoreTransformTo(java.lang.Object geometry)

Description copied from interface: Figure

Restores the transform of the figure to a previously stored state.

getTransformRestoreData

public java.lang.Object getTransformRestoreData()

Description copied from interface: Figure

Gets data which can be used to restore the transformation of the figure without loss of precision, after a transform has been applied to it.

See Also:

Figure.transform(AffineTransform)