Zoomer (Starjava TOPCAT API)

java.lang.Object
- java.awt.event.MouseAdapter
- - javax.swing.event.MouseInputAdapter
  - - uk.ac.starlink.topcat.plot.Zoomer

All Implemented Interfaces:

java.awt.event.MouseListener, java.awt.event.MouseMotionListener, java.awt.event.MouseWheelListener, java.util.EventListener, javax.swing.event.MouseInputListener
```
public class Zoomer
extends javax.swing.event.MouseInputAdapter
```
Mouse listener which can manufacture zoom requests on the basis of mouse gestures. The zones over which mouse gestures are gathered from and over which graphical feedback is given is defined by a list of ZoomRegion objects held by instances of this class.
To use an instance of this class, you must install it as both a MouseListener and a MouseMotionListener on the relevant component.

Since:

28 Mar 2006

Author:

Mark Taylor

Constructor Summary

Constructors
Constructor Description

Zoomer()
Constructor.

Constructors
Constructor	Description
`Zoomer()`	Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.util.List`	`getRegions()`	Returns the list of `ZoomRegion` objects which defines the behaviour of this object.
`void`	`mouseDragged(java.awt.event.MouseEvent evt)`
`void`	`mouseMoved(java.awt.event.MouseEvent evt)`
`void`	`mousePressed(java.awt.event.MouseEvent evt)`
`void`	`mouseReleased(java.awt.event.MouseEvent evt)`
`void`	`setCursorComponent(java.awt.Component comp)`	Sest the component, if any, over which this object should modify the cursor over.
`void`	`setRegions(java.util.List regionList)`	Sets the list of `ZoomRegion` objects which defines the behaviour of this object.

Methods inherited from class java.awt.event.MouseAdapter
mouseClicked, mouseEntered, mouseExited, mouseWheelMoved

Methods inherited from interface java.awt.event.MouseListener
mouseClicked, mouseEntered, mouseExited

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Zoomer
```
public Zoomer()
```
    Constructor.
- Method Detail
  - getRegions
```
public java.util.List getRegions()
```
    Returns the list of ZoomRegion objects which defines the behaviour of this object.
    
    Returns:
    
    zoom region list
  - setRegions
```
public void setRegions(java.util.List regionList)
```
    Sets the list of ZoomRegion objects which defines the behaviour of this object.
    
    Parameters:
    
    regionList - list of zoom regions
  - setCursorComponent
```
public void setCursorComponent(java.awt.Component comp)
```
    Sest the component, if any, over which this object should modify the cursor over. The cursor will be altered to indicate when the mouse is in an active zoom target region.
    
    Parameters:
    
    comp - component over which the cursor can be changed
  - mousePressed
```
public void mousePressed(java.awt.event.MouseEvent evt)
```
    Specified by:
    
    mousePressed in interface java.awt.event.MouseListener
    
    Overrides:
    
    mousePressed in class java.awt.event.MouseAdapter
  - mouseMoved
```
public void mouseMoved(java.awt.event.MouseEvent evt)
```
    Specified by:
    
    mouseMoved in interface java.awt.event.MouseMotionListener
    
    Overrides:
    
    mouseMoved in class java.awt.event.MouseAdapter
  - mouseDragged
```
public void mouseDragged(java.awt.event.MouseEvent evt)
```
    Specified by:
    
    mouseDragged in interface java.awt.event.MouseMotionListener
    
    Overrides:
    
    mouseDragged in class java.awt.event.MouseAdapter
  - mouseReleased
```
public void mouseReleased(java.awt.event.MouseEvent evt)
```
    Specified by:
    
    mouseReleased in interface java.awt.event.MouseListener
    
    Overrides:
    
    mouseReleased in class java.awt.event.MouseAdapter

Class Zoomer

Constructor Summary

Method Summary

Methods inherited from class java.awt.event.MouseAdapter

Methods inherited from interface java.awt.event.MouseListener

Methods inherited from class java.lang.Object

Constructor Detail

Zoomer

Method Detail

getRegions

setRegions

setCursorComponent

mousePressed

mouseMoved

mouseDragged

mouseReleased