com.rolemodelsoft.drawlet.basics
Class CanvasTool

java.lang.Object
  |
  +--com.rolemodelsoft.drawlet.basics.AbstractInputEventHandler
        |
        +--com.rolemodelsoft.drawlet.basics.CanvasTool

Direct Known Subclasses:

ConstructionTool, SelectionTool

public abstract class CanvasTool

extends AbstractInputEventHandler

This abstract class offers a simple base for Tools attached to a DrawingCanvas Subclasses would typically provide a constructor that takes a DrawingCanvas as an argument.

Field Summary

protected DrawingCanvas

canvas The canvas upon which to "operate"

Constructor Summary

CanvasTool()

Method Summary

protected int	getX(java.awt.event.MouseEvent evt) Returns the proper x value for the given event.
protected int	getY(java.awt.event.MouseEvent evt) Returns the proper y value for the given event.
void	mouseReleased(java.awt.event.MouseEvent e) Called if the mouse is released.

Methods inherited from class com.rolemodelsoft.drawlet.basics.AbstractInputEventHandler

keyPressed, keyReleased, keyTyped, mouseClicked, mouseDoubleClicked, mouseDragged, mouseEntered, mouseExited, mouseMoved, mousePressed, mouseSingleClicked

Methods inherited from class java.lang.Object

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

Field Detail

canvas

protected DrawingCanvas canvas

The canvas upon which to "operate"

Constructor Detail

CanvasTool

public CanvasTool()

Method Detail

getX

protected int getX(java.awt.event.MouseEvent evt)

Returns the proper x value for the given event.

Parameters:

evt - the MouseEvent to get the corrected x for.

Returns:

an integer representing the proper x coordinate.

getY

protected int getY(java.awt.event.MouseEvent evt)

Returns the proper y value for the given event.

Parameters:

evt - the MouseEvent to get the corrected y for.

Returns:

an integer representing the proper y coordinate.

mouseReleased

public void mouseReleased(java.awt.event.MouseEvent e)

Called if the mouse is released. Default is to tell the canvas that the receiver's work is through. Consume the event since we handle it.

Overrides:

mouseReleased in class AbstractInputEventHandler

Parameters:

e - the MouseEvent