prefuse.controls
Class ZoomingPanControl

java.lang.Object
  prefuse.controls.ControlAdapter
      prefuse.controls.ZoomingPanControl

All Implemented Interfaces:

java.awt.event.KeyListener, java.awt.event.MouseListener, java.awt.event.MouseMotionListener, java.awt.event.MouseWheelListener, java.util.EventListener, Control

public class ZoomingPanControl
extends ControlAdapter

Allows users to pan over a display such that the display zooms in and out proportionally to how fast the pan is performed.

The algorithm used is that of Takeo Igarishi and Ken Hinckley in their research paper Speed-dependent Automatic Zooming for Browsing Large Documents, UIST 2000.

Author:

jeffrey heer

Field Summary

Fields inherited from interface prefuse.controls.Control

LEFT_MOUSE_BUTTON, MIDDLE_MOUSE_BUTTON, RIGHT_MOUSE_BUTTON

Constructor Summary

ZoomingPanControl()
Create a new ZoomingPanControl.

ZoomingPanControl(boolean repaint)
Create a new ZoomingPanControl.

Method Summary

void	mouseDragged(java.awt.event.MouseEvent e) Invoked when a mouse button is pressed on the Display (but NOT a VisualItem) and then dragged.
void	mousePressed(java.awt.event.MouseEvent e) Invoked when a mouse button has been pressed on the Display but NOT on a VisualItem.
void	mouseReleased(java.awt.event.MouseEvent e) Invoked when a mouse button has been released on the Display but NOT on a VisualItem.

Methods inherited from class prefuse.controls.ControlAdapter

isEnabled, itemClicked, itemDragged, itemEntered, itemExited, itemKeyPressed, itemKeyReleased, itemKeyTyped, itemMoved, itemPressed, itemReleased, itemWheelMoved, keyPressed, keyReleased, keyTyped, mouseClicked, mouseEntered, mouseExited, mouseMoved, mouseWheelMoved, setEnabled

Methods inherited from class java.lang.Object

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

Constructor Detail

ZoomingPanControl

public ZoomingPanControl()

Create a new ZoomingPanControl.

ZoomingPanControl

public ZoomingPanControl(boolean repaint)

Create a new ZoomingPanControl.

Parameters:

repaint - true if repaint requests should be issued while panning and zooming. false if repaint requests will come from elsewhere (e.g., a continuously running action).

Method Detail

mousePressed

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

Description copied from interface: Control

Invoked when a mouse button has been pressed on the Display but NOT on a VisualItem.

Specified by:

mousePressed in interface java.awt.event.MouseListener

Specified by:

mousePressed in interface Control

Overrides:

mousePressed in class ControlAdapter

See Also:

MouseListener.mousePressed(java.awt.event.MouseEvent)

mouseDragged

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

Description copied from interface: Control

Invoked when a mouse button is pressed on the Display (but NOT a VisualItem) and then dragged.

Specified by:

mouseDragged in interface java.awt.event.MouseMotionListener

Specified by:

mouseDragged in interface Control

Overrides:

mouseDragged in class ControlAdapter

See Also:

MouseMotionListener.mouseDragged(java.awt.event.MouseEvent)

mouseReleased

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

Description copied from interface: Control

Invoked when a mouse button has been released on the Display but NOT on a VisualItem.

Specified by:

mouseReleased in interface java.awt.event.MouseListener

Specified by:

mouseReleased in interface Control

Overrides:

mouseReleased in class ControlAdapter

See Also:

MouseListener.mouseReleased(java.awt.event.MouseEvent)