org.geotools.gui.tools
Class ClickZoomToolImpl

java.lang.Object
  org.geotools.gui.tools.AbstractTool
      org.geotools.gui.tools.ClickZoomToolImpl

All Implemented Interfaces:

ClickZoomTool, java.util.EventListener, java.awt.event.MouseListener, java.awt.event.MouseMotionListener, Tool

public class ClickZoomToolImpl

extends AbstractTool

implements ClickZoomTool

Pan the map so that the new extent has the click point in the middle of the map and then zoom in/out by the zoomFactor.

Version:

$Id: ClickZoomToolImpl.java 17672 2006-01-19 00:25:55Z desruisseaux $

Author:

Cameron Shorter

Field Summary

Fields inherited from class org.geotools.gui.tools.AbstractTool

context

Constructor Summary

ClickZoomToolImpl()
Construct a ZoomTool.

ClickZoomToolImpl(double zoomFactor)
Construct a ZoomTool.

Method Summary

void	addMouseListener(java.awt.Component component, MapContext context) Register this tool to receive MouseEvents from component.
void	addMouseMotionListener(java.awt.Component component, MapContext context)
double	getZoomFactor() The factor to zoom in out by, zoomFactor=0.5 means zoom in, zoomFactor=2 means zoom out.
void	mouseClicked(java.awt.event.MouseEvent e) Set up Click/Zoom.
void	setZoomFactor(double zoomFactor) The factor to zoom in out by, zoomFactor=0.5 means zoom in, zoomFactor=2 means zoom out.

Methods inherited from class org.geotools.gui.tools.AbstractTool

addMouseListener, addMouseMotionListener, destroy, getContext, getCursor, getName, mouseDragged, mouseEntered, mouseExited, mouseMoved, mousePressed, mouseReleased, paint, removeMouseListeners, setCursor, setName, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.geotools.gui.tools.Tool

destroy, getContext, getCursor, getName, paint, removeMouseListeners, setCursor, setName

Constructor Detail

ClickZoomToolImpl

public ClickZoomToolImpl()

Construct a ZoomTool.

ClickZoomToolImpl

public ClickZoomToolImpl(double zoomFactor)

Construct a ZoomTool. @parma zoomFactor he factor to zoom in/out by, zoomFactor=2 means zoom in, zoomFactor=0.5 means zoom out.

Method Detail

mouseClicked

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

Set up Click/Zoom. Pan the map so that the new extent has the click point in the middle of the map and then zoom in/out by the zoomFactor.

Specified by:

mouseClicked in interface java.awt.event.MouseListener

Overrides:

mouseClicked in class AbstractTool

Parameters:

e - The mouse clicked event.

addMouseListener

public void addMouseListener(java.awt.Component component,
                             MapContext context)

Register this tool to receive MouseEvents from component.

Specified by:

addMouseListener in interface Tool

Parameters:

component - The tool will process mouseEvents from this component.

context - The Context that will be changed by this Tool.

Throws:

java.lang.IllegalArgumentException - if an argument is null or the tool is being assigned a different context to before.

setZoomFactor

public void setZoomFactor(double zoomFactor)

The factor to zoom in out by, zoomFactor=0.5 means zoom in, zoomFactor=2 means zoom out. Defaults to 2.

Specified by:

setZoomFactor in interface ClickZoomTool

Parameters:

zoomFactor - the factor to zoom by.

getZoomFactor

public double getZoomFactor()

The factor to zoom in out by, zoomFactor=0.5 means zoom in, zoomFactor=2 means zoom out. Defaults to 2.

Specified by:

getZoomFactor in interface ClickZoomTool

Returns:

the factor to zoom by.

addMouseMotionListener

public void addMouseMotionListener(java.awt.Component component,
                                   MapContext context)
                            throws java.lang.IllegalArgumentException

Specified by:

addMouseMotionListener in interface Tool

Throws:

java.lang.IllegalArgumentException