java.lang.Object
java.awt.BufferCapabilities
- All Implemented Interfaces:
Cloneable
Capabilities and properties of buffers.
- Since:
- 1.4
- See Also:
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Nested Class Summary
Nested ClassesModifier and TypeClassDescriptionstatic final class
A type-safe enumeration of the possible back buffer contents after page-flipping -
Constructor Summary
ConstructorsConstructorDescriptionBufferCapabilities
(ImageCapabilities frontCaps, ImageCapabilities backCaps, BufferCapabilities.FlipContents flipContents) Creates a new object for specifying buffering capabilities -
Method Summary
Modifier and TypeMethodDescriptionclone()
Answers a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.Returns the image capabilities of all back buffers (intermediate buffers are considered back buffers).Returns the resulting contents of the back buffer after page-flipping.Returns the image capabilities of the front (displayed) buffer.boolean
Returns whether page flipping is only available in full-screen mode.boolean
Returns whether or not page flipping can be performed using more than two buffers (one or more intermediate buffers as well as the front and back buffer).boolean
Returns whether or not the buffer strategy uses page flipping.
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Constructor Details
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BufferCapabilities
public BufferCapabilities(ImageCapabilities frontCaps, ImageCapabilities backCaps, BufferCapabilities.FlipContents flipContents) Creates a new object for specifying buffering capabilities- Parameters:
frontCaps
- the capabilities of the front buffer; cannot benull
backCaps
- the capabilities of the back and intermediate buffers; cannot benull
flipContents
- the contents of the back buffer after page-flipping,null
if page flipping is not used (implies blitting)- Throws:
IllegalArgumentException
- if frontCaps or backCaps arenull
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Method Details
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getFrontBufferCapabilities
Returns the image capabilities of the front (displayed) buffer.- Returns:
- the image capabilities of the front (displayed) buffer
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getBackBufferCapabilities
Returns the image capabilities of all back buffers (intermediate buffers are considered back buffers).- Returns:
- the image capabilities of all back buffers (intermediate buffers are considered back buffers)
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isPageFlipping
public boolean isPageFlipping()Returns whether or not the buffer strategy uses page flipping. A set of buffers that uses page flipping can swap the contents internally between the front buffer and one or more back buffers by switching the video pointer (or by copying memory internally). A non-flipping set of buffers uses blitting to copy the contents from one buffer to another; when this is the case,getFlipContents
returnsnull
.- Returns:
- whether or not the buffer strategy uses page flipping
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getFlipContents
Returns the resulting contents of the back buffer after page-flipping. This value isnull
when theisPageFlipping
returnsfalse
, implying blitting. It can be one ofFlipContents.UNDEFINED
(the assumed default),FlipContents.BACKGROUND
,FlipContents.PRIOR
, orFlipContents.COPIED
.- Returns:
- the resulting contents of the back buffer after page-flipping
- See Also:
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isFullScreenRequired
public boolean isFullScreenRequired()Returns whether page flipping is only available in full-screen mode. If this istrue
, full-screen exclusive mode is required for page-flipping.- Returns:
- whether page flipping is only available in full-screen mode
- See Also:
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isMultiBufferAvailable
public boolean isMultiBufferAvailable()Returns whether or not page flipping can be performed using more than two buffers (one or more intermediate buffers as well as the front and back buffer).- Returns:
- whether or not page flipping can be performed using more than two buffers
- See Also:
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clone
Description copied from class:Object
Answers a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.Classes which wish to support cloning must specify that they implement the Cloneable interface, since the native implementation checks for this.
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