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Transparency (Java Platform SE 6) - JDK 5 Documentation v6.0, Java 2 SDK 英文文档


Java™ Platform
Standard Ed. 6

java.awt
Interface Transparency

All Known Subinterfaces:
Paint
All Known Implementing Classes:
BufferedImage, Color, ColorModel, ColorUIResource, ComponentColorModel, DirectColorModel, GradientPaint, IndexColorModel, LinearGradientPaint, MultipleGradientPaint, PackedColorModel, RadialGradientPaint, SystemColor, TexturePaint, VolatileImage

public interface Transparency

The Transparency interface defines the common transparency modes for implementing classes.


Field Summary
static int BITMASK
          Represents image data that is guaranteed to be either completely opaque, with an alpha value of 1.0, or completely transparent, with an alpha value of 0.0.
static int OPAQUE
          Represents image data that is guaranteed to be completely opaque, meaning that all pixels have an alpha value of 1.0.
static int TRANSLUCENT
          Represents image data that contains or might contain arbitrary alpha values between and including 0.0 and 1.0.
 
Method Summary
 int getTransparency()
          Returns the type of this Transparency.
 

Field Detail

OPAQUE

static final int OPAQUE
Represents image data that is guaranteed to be completely opaque, meaning that all pixels have an alpha value of 1.0.

See Also:
Constant Field Values

BITMASK

static final int BITMASK
Represents image data that is guaranteed to be either completely opaque, with an alpha value of 1.0, or completely transparent, with an alpha value of 0.0.

See Also:
Constant Field Values

TRANSLUCENT

static final int TRANSLUCENT
Represents image data that contains or might contain arbitrary alpha values between and including 0.0 and 1.0.

See Also:
Constant Field Values
Method Detail

getTransparency

int getTransparency()
Returns the type of this Transparency.

Returns:
the field type of this Transparency, which is either OPAQUE, BITMASK or TRANSLUCENT.

Java™ Platform
Standard Ed. 6

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For further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2006 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.