java.awt
Class Component.BltBufferStrategy
- Component
This class provides support for blitting offscreen surfaces to a
component.
boolean | contentsLost()- Returns whether or not the image buffer resources have been
lost.
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boolean | contentsRestored()- Returns whether or not the image buffer resources have been
restored.
|
protected void | createBackBuffers(int numBuffers)- Initializes the backBuffers field with an array of numBuffers
VolatileImages.
|
BufferCapabilities | getCapabilities()- Retrieves the capabilities of this buffer strategy.
|
Graphics | getDrawGraphics()- Retrieves a graphics object that can be used to draw into this
strategy's image buffer.
|
protected void | revalidate()- Re-create the image buffer resources if they've been lost.
|
void | show()- Bring the contents of the back buffer to the front buffer.
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clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait |
height
protected int height
The height of the back buffers.
validatedContents
protected boolean validatedContents
Whether or not the image buffer resources are allocated and
ready to be drawn into.
width
protected int width
The width of the back buffers.
BltBufferStrategy
protected BltBufferStrategy(int numBuffers,
BufferCapabilities caps) Creates a blitting buffer strategy.
numBuffers - the number of buffers, including the front
buffercaps - the capabilities of this strategy
contentsLost
public boolean contentsLost()
Returns whether or not the image buffer resources have been
lost.
- contentsLost in interface BufferStrategy
- true if the resources have been lost, false otherwise
createBackBuffers
protected void createBackBuffers(int numBuffers)
Initializes the backBuffers field with an array of numBuffers
VolatileImages.
numBuffers - the number of backbuffers to create
revalidate
protected void revalidate()
Re-create the image buffer resources if they've been lost.
show
public void show()
Bring the contents of the back buffer to the front buffer.
- show in interface BufferStrategy
Component.java -- a graphics component
Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2006
Free Software Foundation
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