MapControl.Drawer

java.lang.Object
- org.gvsig.fmap.mapcontrol.MapControl.Drawer

Enclosing class:

MapControl
```
public class MapControl.Drawer
extends java.lang.Object
```
An instance of Drawer2 could manage all MapControl painting requests.

Based on the WorkerThread software pattern, creates a worker thread that will attend sequentially the current waiting painting request, after finishing the previous (that could be by a cancel action).

All new PaintingRequest generated will be stored as waiting requests since the worker attends it.

If a worker finished and there was no painting request, the worker would be set to wait until any painting request would be put.

Constructor Summary

Constructors
Constructor and Description

Drawer()
Creates a new drawer for managing all data painting requests in MapControl.

Constructors
Constructor and Description
`Drawer()` Creates a new drawer for managing all data painting requests in `MapControl`.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`put(org.gvsig.fmap.mapcontrol.MapControl.PaintingRequest newPaintRequest)` Sets a `PaintingRequest` to be attended by the worker thread of this object.
`void`	`setShutdown(boolean isShutdown)` Sets this `Drawer2`'s worker to finish or continue with its process.
`org.gvsig.fmap.mapcontrol.MapControl.PaintingRequest`	`take()` Used by this object's worker, returns the current waiting drawing request, causing current thread to wait until another thread invokes `#put(com.iver.cit.gvsig.fmap.MapControl.PaintingRequest)`, if there was no waiting request.

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

- Constructor Detail
  - Drawer
```
public Drawer()
```
    Creates a new drawer for managing all data painting requests in MapControl.
    
    Includes the following steps:
    - By default, there is no current painting request.
    - By default, there is no waiting painting request.
    - By default, the worker thread is waiting no painting request.
    - By default, the worker thread is running.
    - Creates and starts a worker thread for attending the painting requests.
- Method Detail
  - setShutdown
```
public void setShutdown(boolean isShutdown)
```
    Sets this Drawer2's worker to finish or continue with its process.
    
    Parameters:
    
    isShutdown - a boolean value
  - put
```
public void put(org.gvsig.fmap.mapcontrol.MapControl.PaintingRequest newPaintRequest)
```
    Sets a PaintingRequest to be attended by the worker thread of this object. If this one was waiting, wakes up.
    
    All waiting threads will be notified synchronized.
    
    Parameters:
    
    newPaintRequest -
    
    See Also:
    
    take()
  - take
```
public org.gvsig.fmap.mapcontrol.MapControl.PaintingRequest take()
```
    Used by this object's worker, returns the current waiting drawing request, causing current thread to wait until another thread invokes #put(com.iver.cit.gvsig.fmap.MapControl.PaintingRequest), if there was no waiting request.
    
    All threads will access synchronized to the waiting request.
    
    Returns:
    
    PaintingRequest that was waiting to be attended
    
    See Also:
    
    put(org.gvsig.fmap.mapcontrol.MapControl.PaintingRequest)

Class MapControl.Drawer

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Drawer

Method Detail

setShutdown

put

take