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

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Java™ Platform
Standard Ed. 6

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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 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.