jfig.gui
Class MouseWheelZoomPanHandler

java.lang.Object
  jfig.gui.MouseWheelZoomPanHandler

All Implemented Interfaces:

java.util.EventListener, java.awt.event.MouseWheelListener

public class MouseWheelZoomPanHandler

extends java.lang.Object

implements java.awt.event.MouseWheelListener

MouseWheelZoomPanHandler allows to control zooming and panning on a FigSwingCanvas via the mouse wheel and modifier keys. Currently, the behaviour is the following:

• wheel-up: pan up
• wheel-down: pan down
• shift+wheel-up: pan left
• shift+wheel-down: pan right
• control+wheel-up: zoom out
• control+wheel-down: zoom in

To avoid major complications with older JDK releases, almost all functions are called via reflection.

Field Summary

protected java.lang.Object	canvas
protected java.lang.Object	editor
protected boolean	enabled

Constructor Summary

MouseWheelZoomPanHandler(java.lang.Object editor, java.lang.Object canvas)

Method Summary

void	call(java.lang.String methodname)
void	mouseWheelMoved(java.awt.event.MouseWheelEvent evt)
void	msg(java.lang.String s)
void	setEnabled(boolean b)
void	setEnabled(java.lang.Boolean B)

Methods inherited from class java.lang.Object

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

Field Detail

editor

protected java.lang.Object editor

canvas

protected java.lang.Object canvas

enabled

protected boolean enabled

Constructor Detail

MouseWheelZoomPanHandler

public MouseWheelZoomPanHandler(java.lang.Object editor,
                                java.lang.Object canvas)

Method Detail

call

public void call(java.lang.String methodname)

setEnabled

public void setEnabled(java.lang.Boolean B)

setEnabled

public void setEnabled(boolean b)

mouseWheelMoved

public void mouseWheelMoved(java.awt.event.MouseWheelEvent evt)

Specified by:

mouseWheelMoved in interface java.awt.event.MouseWheelListener

msg

public void msg(java.lang.String s)