PixelPositionListener (SNAP Desktop API)

All Known Implementing Classes:

CursorSpectrumPixelPositionListener, PixelPosStatusLineElementProvider
```
public interface PixelPositionListener
```
A listener interrested in pixel position changes within a source image. You can add PixelPositionListeners to instances of the ImageDisplay UI component.

Version:

$Revision$ $Date$

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`pixelPosChanged(ImageLayer baseImageLayer, int pixelX, int pixelY, int currentLevel, boolean pixelPosValid, MouseEvent e)`	Informs a client that the pixel position within the image has changed.
`void`	`pixelPosNotAvailable()`	Informs a client that the pixel positions are no longer available.

- Method Detail
  - pixelPosChanged
```
void pixelPosChanged(ImageLayer baseImageLayer,
                     int pixelX,
                     int pixelY,
                     int currentLevel,
                     boolean pixelPosValid,
                     MouseEvent e)
```
    Informs a client that the pixel position within the image has changed.
    
    Parameters:
    
    baseImageLayer - the image layer
    
    pixelX - the x position within the image in pixel co-ordinates on the given level
    
    pixelY - the y position within the image in pixel co-ordinates on the given level
    
    currentLevel - the current level at which the image is displayed
    
    pixelPosValid - if true, pixel position is valid
  - pixelPosNotAvailable
```
void pixelPosNotAvailable()
```
    Informs a client that the pixel positions are no longer available.