org.jhotdraw.samples.mini

Class StraightLineFigure

java.lang.Object

org.jhotdraw.beans.AbstractBean

org.jhotdraw.draw.AbstractFigure

org.jhotdraw.draw.AbstractAttributedFigure

org.jhotdraw.samples.mini.StraightLineFigure

All Implemented Interfaces:

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

public class StraightLineFigure
extends AbstractAttributedFigure

Example showing the minimal amount of code needed to implement a Figure by extending AbstractAttributedFigure.

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

Fields inherited from interface org.jhotdraw.draw.Figure

CONNECTABLE_PROPERTY, REMOVABLE_PROPERTY, SELECTABLE_PROPERTY, TRANSFORMABLE_PROPERTY

Constructor Summary

Constructors

Constructor and Description
StraightLineFigure() Creates a new instance.

Method Summary

Modifier and Type	Method and Description
StraightLineFigure	clone() Returns a clone of the figure, with clones of all aggregated figures, such as children and decorators.
boolean	contains(java.awt.geom.Point2D.Double p) Checks if a point is contained by 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 .
java.awt.geom.Rectangle2D.Double	getBounds() Returns the untransformed logical bounds 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 restoreData) Restores the transform of the figure to a previously stored state.
void	setBounds(java.awt.geom.Point2D.Double start, java.awt.geom.Point2D.Double end) Sets the logical and untransformed bounds of the figure.
void	transform(java.awt.geom.AffineTransform ty) Transforms the shape of the Figure.

Methods inherited from class org.jhotdraw.draw.AbstractAttributedFigure

applyAttributesTo, draw, drawText, get, getAttributeKey, getAttributes, getAttributesRestoreData, getDrawingArea, getStroke, getStrokeMiterLimitFactor, hasAttribute, isAttributeEnabled, read, readAttributes, removeAttribute, restoreAttributesTo, set, setAttributeEnabled, setAttributes, write, writeAttributes

Methods inherited from class org.jhotdraw.draw.AbstractFigure

addFigureListener, addNotify, changed, createHandles, findCompatibleConnector, findConnector, 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, isConnectable, isRemovable, isSelectable, isTransformable, isVisible, remap, removeFigureListener, removeNotify, requestRemove, setBounds, setConnectable, setRemovable, setSelectable, setTransformable, setVisible, toString, validate, willChange

Methods inherited from class org.jhotdraw.beans.AbstractBean

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jhotdraw.draw.Figure

addPropertyChangeListener, removePropertyChangeListener

Constructor Detail

StraightLineFigure

public StraightLineFigure()

Creates a new instance.

Method Detail

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

transform

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

Description copied from interface: Figure

Transforms the shape of the Figure. Transformations using double precision arithmethics are inherently lossy operations. Therefore it is recommended to use getTransformRestoreData() restoreTransformTo() to provide lossless undo/redo functionality.

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

 figure.willChange();
 figure.transform(...);
 figure.changed();
 

Parameters:

ty - The transformation.

See Also:

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

setBounds

public void setBounds(java.awt.geom.Point2D.Double start,
                      java.awt.geom.Point2D.Double end)

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:

 figure.willChange();
 figure.setBounds(...);
 figure.changed();
 

Specified by:

setBounds in interface Figure

Overrides:

setBounds in class AbstractFigure

Parameters:

start - the start point of the bounds

end - the end point of the bounds

See Also:

Figure.getBounds()

getBounds

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

Description copied from interface: Figure

Returns the untransformed logical bounds of the figure as a Rectangle.

The bounds are used by Handle objects for adjusting the figure and for aligning the figure on a grid.

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)

restoreTransformTo

public void restoreTransformTo(java.lang.Object restoreData)

Description copied from interface: Figure

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

contains

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

Description copied from interface: Figure

Checks if a point is contained by the figure.

This is used for hit testing by Tool's.

clone

public StraightLineFigure clone()

Description copied from interface: Figure

Returns a clone of the figure, with clones of all aggregated figures, such as children 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