DrawingPanel.ZoomBox

java.lang.Object

org.opensourcephysics.display.DrawingPanel.ZoomBox

Enclosing class:: DrawingPanel

public class DrawingPanel.ZoomBox extends Object

ZoomBox creates an on-screen rectangle using XORMode for fast redrawing.

Constructor Summary

Constructors

Constructor

Description

ZoomBox()
Method Summary

Modifier and Type

Method

Description

void

drag(int xpix, int ypix)

Drags the corner of the ZoomBox.

void

hide()

Hides the zoom box.

boolean

isDragged()

Reports the drag status of the zoom box.

boolean

isVisible()

Gets the visibility of the zoom box.

Rectangle

reportZoom()

Reports the zoom rectangle in pixel units.

void

setShowUndraggedBox(boolean show)

Sets the showUndraggedBox flag.

void

setVisible(boolean vis)

Sets the visibility of the zoom box.

void

startZoom(int xpix, int ypix)

Starts the zoom by saving the corner location.

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

Constructor Details
- ZoomBox
  
  public ZoomBox()
Method Details
- startZoom
  
  public void startZoom(int xpix, int ypix)
  
  Starts the zoom by saving the corner location.
  
  Parameters:
  
  xpix -
  
  ypix -
- hide
  
  public void hide()
  
  Hides the zoom box.
- setShowUndraggedBox
  
  public void setShowUndraggedBox(boolean show)
  
  Sets the showUndraggedBox flag.
  
  Parameters:
  
  show - true to show a zoom box when the mouse is not dragged
- drag
  
  public void drag(int xpix, int ypix)
  
  Drags the corner of the ZoomBox. Drag uses XORMode drawing to first erase and then repaint the box.
  
  Parameters:
  
  xpix -
  
  ypix -
- isDragged
  
  public boolean isDragged()
  
  Reports the drag status of the zoom box.
  
  Returns:
  
  true if the zoom box has been dragged
- isVisible
  
  public boolean isVisible()
  
  Gets the visibility of the zoom box.
  
  Returns:
  
  true if visible
- setVisible
  
  public void setVisible(boolean vis)
  
  Sets the visibility of the zoom box.
  
  Parameters:
  
  true - if visible
- reportZoom
  
  public Rectangle reportZoom()
  
  Reports the zoom rectangle in pixel units.