Component.BltBufferStrategy (Java Platform SE 6)

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java.awt
class Component.BltBufferStrategy

java.lang.Object
  java.awt.image.BufferStrategy
      java.awt.Component.BltBufferStrategy

Enclosing class:: Component

protected class Component.BltBufferStrategy
extends BufferStrategy

Inner class for blitting offscreen surfaces to a component.

Field Summary
`protected VolatileImage[]`	`backBuffers` The back buffers
`protected BufferCapabilities`	`caps` The buffering capabilities
`protected int`	`height`
`protected boolean`	`validatedContents` Whether or not the drawing buffer has been recently restored from a lost state.
`protected int`	`width` Size of the back buffers

Constructor Summary
`protected`	`Component.BltBufferStrategy(int numBuffers, BufferCapabilities caps)` Creates a new blt buffer strategy around a component

Method Summary
`boolean`	`contentsLost()` Returns whether the drawing buffer was lost since the last call to `getDrawGraphics`.
`boolean`	`contentsRestored()` Returns whether the drawing buffer was recently restored from a lost state and reinitialized to the default background color (white).
`protected void`	`createBackBuffers(int numBuffers)` Creates the back buffers
`void`	`dispose()` Releases system resources currently consumed by this `BufferStrategy` and removes it from the associated Component.
`BufferCapabilities`	`getCapabilities()` Returns the `BufferCapabilities` for this `BufferStrategy`.
`Graphics`	`getDrawGraphics()` Creates a graphics context for the drawing buffer.
`protected void`	`revalidate()` Restore the drawing buffer if it has been lost
`void`	`show()` Makes the next available buffer visible.

Methods inherited from class java.awt.image.BufferStrategy
`contentsLost, contentsRestored, dispose, getCapabilities, getDrawGraphics, show`

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

Field Detail

backBuffers

protected VolatileImage[] backBuffers

The back buffers

caps

protected BufferCapabilities caps

The buffering capabilities

height

protected int height

validatedContents

protected boolean validatedContents

Whether or not the drawing buffer has been recently restored from a lost state.

width

protected int width

Size of the back buffers

Constructor Detail