Package jpicedt.graphic.toolkit

Class AbstractMouseTransformFactory.SelectAreaTransform

java.lang.Object

jpicedt.graphic.toolkit.AbstractMouseTransformFactory.SelectAreaTransform

All Implemented Interfaces:

MouseTransform

Direct Known Subclasses:

EditElementMouseTransformFactory.SelectElementsInAreaTransform, EditPointMouseTransformFactory.SelectPointsInAreaTransform

Enclosing class:

AbstractMouseTransformFactory

protected class AbstractMouseTransformFactory.SelectAreaTransform
extends java.lang.Object
implements MouseTransform

a mouse-transform dedicated to select objects (Element's, control-point's,...) inside a rectangle dragged by the user. Only a skeletal implementation is provided here. This implementation grows the selection rectangle, yet where *really* selecting things is concerned, subclassers may override methods by calling super.method_name before hand.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SelectAreaTransform()

Method Summary

Modifier and Type	Method	Description
java.awt.geom.Rectangle2D	getClipRectangle()	Returns a rectangle defining the clip boundary for this mouse-transform, in model-coordinates
java.awt.Cursor	getCursor()	Return the cursor for this MouseTransform
java.lang.String	getHelpMessage()	Return a help-message for the UI, that makes sense with this transform.
protected java.awt.geom.Rectangle2D	getSelectionRectangle()	Return the selection rectangle as built from the first mouse-pressed event and the current drag position.
boolean	next(PEMouseEvent e)	Called when the mouse is released.
void	paint(java.awt.Graphics2D g, java.awt.geom.Rectangle2D allocation, double scale)	render the selection rectangle
void	process(PEMouseEvent e)	Called when the mouse is dragged.
void	start(PEMouseEvent e)	Invoked by mousePressed().
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectAreaTransform

protected SelectAreaTransform()

Method Detail

getSelectionRectangle

protected final java.awt.geom.Rectangle2D getSelectionRectangle()

Return the selection rectangle as built from the first mouse-pressed event and the current drag position.

start

public void start(PEMouseEvent e)

Invoked by mousePressed(). This implementation simply initializes the geometry of the selection rectangle. Override if you must carry out specific selection operations on mousePressed().

Specified by:

start in interface MouseTransform

process

public void process(PEMouseEvent e)

Called when the mouse is dragged. This simply grows the selection rectangle. Override if you must carry out specific selection operations while the mouse is being dragged.

Specified by:

process in interface MouseTransform

next

public boolean next(PEMouseEvent e)

Called when the mouse is released. This implementation simply repaint the selection rectangle. Override if you must carry out specific selection operations while the mouse is being released.

Specified by:

next in interface MouseTransform

Returns:

true if there's another task in the sequence, false if mouse-transform has completed with this mouse-event.

paint

public void paint(java.awt.Graphics2D g,
                  java.awt.geom.Rectangle2D allocation,
                  double scale)

render the selection rectangle

Specified by:

paint in interface MouseTransform

Parameters:

scale - Graphics2D's current scale factor b/w model and view

getClipRectangle

public java.awt.geom.Rectangle2D getClipRectangle()

Returns a rectangle defining the clip boundary for this mouse-transform, in model-coordinates

getHelpMessage

public java.lang.String getHelpMessage()

Description copied from interface: MouseTransform

Return a help-message for the UI, that makes sense with this transform.

Specified by:

getHelpMessage in interface MouseTransform

Returns:

a help-message for the UI, that makes sense with this transform.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

Returns:

a textual representation of this transform for debugging purpose

getCursor

public java.awt.Cursor getCursor()

Description copied from interface: MouseTransform

Return the cursor for this MouseTransform

Specified by:

getCursor in interface MouseTransform

Returns:

a cursor adequate with this mouse-transform, delegating to CursorFactory.