CurrentLayerIsRasterImageLayerCheck (OpenJUMP 2.4.0 API)

java.lang.Object
- org.openjump.core.rasterimage.CurrentLayerIsRasterImageLayerCheck

All Implemented Interfaces:

EnableCheck
```
public class CurrentLayerIsRasterImageLayerCheck
extends Object
implements EnableCheck
```
Enable check (to controll menu items) that checks, if the selected layer is a RasterImage Layer

Version:

$Rev: 2434 $

Author:

Ole Rahn

FH Osnabrück - University of Applied Sciences Osnabrück,
Project: PIROL (2005),
Subproject: Daten- und Wissensmanagement

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  protected EnableCheck checker
  
  protected PlugInContext context
- Constructor Summary
  
  Constructors
  Constructor Description
  
  CurrentLayerIsRasterImageLayerCheck(PlugInContext context)
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  String check(JComponent component)
  Returns a non-null value if the check failed.
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - context
```
protected PlugInContext context
```
  - checker
```
protected EnableCheck checker
```
- Constructor Detail
  - CurrentLayerIsRasterImageLayerCheck
```
public CurrentLayerIsRasterImageLayerCheck(PlugInContext context)
```
- Method Detail
  - check
```
public String check(JComponent component)
```
    Description copied from interface: EnableCheck
    
    Returns a non-null value if the check failed. Sometimes the return value is used (for example, it is displayed as a tooltip for menu-items); sometimes it is not (for example, toolbar buttons don't do anything with the return value). An advanced use of an EnableCheck is simply to change some property of a menu item (such as the text), as it is called when menu items are displayed.
    
    Specified by:
    
    check in interface EnableCheck
    
    Returns:
    
    an error message if the check failed, or null if the check passed