Constructor Detail

• ZoomRegion

  public ZoomRegion()

Method Detail

• setTarget

  public void setTarget(java.awt.Rectangle target)

  Sets the target region. This is the region within which the mouse must be clicked and dragged in order to generate a zoom event.

  Parameters:

  target - target region

• getTarget

  public java.awt.Rectangle getTarget()

  Returns the target region. This is the region within which the mouse must be clicked and dragged in order to generate a zoom event.

  Returns:

  target region

• setDisplay

  public void setDisplay(java.awt.Rectangle display)

  Sets the display region. This is the region used to provide visual feedback to the user during a drag gesture.

  Parameters:

  display - display region

• getDisplay

  public java.awt.Rectangle getDisplay()

  Returns the display region. This is the region used to display visual feedback to the user during a drag gesture.

  Returns:

  display region

• setCursor

  public void setCursor(java.awt.Cursor cursor)

  Sets a custom cursor for use in the target region.

  Parameters:

  cursor - custom cursor

• getCursor

  public java.awt.Cursor getCursor()

  Returns the custom cursor for use in the target region.

  Returns:

  custom cursor

• createDrag

  public abstract ZoomDrag createDrag(java.awt.Component comp,
                                      java.awt.Point start)

  Returns a new ZoomDrag object appropriate for this region.

  Parameters:

  comp - component on which the drag is taking place

  start - start point for the drag

  Returns:

  new drag object

• zoomed

  public abstract void zoomed(double[][] bounds)

  Callback which will be invoked when a zoom invoked on this region has been completed successfully. Elements of the parameter array are two-element arrays giving (lower, upper) bounds in one or more dimensions, according to the type of region. The units should normally be dimensionless: a range of (0,1) indicates the same range as is currently contained by the display region. Bounds may be larger or smaller than the (1,0) interval.

  Parameters:

  bounds - array of (lower, upper) zoom bounds