本文整理汇总了Java中java.awt.image.BufferedImage.getAlphaRaster方法的典型用法代码示例。如果您正苦于以下问题：Java BufferedImage.getAlphaRaster方法的具体用法？Java BufferedImage.getAlphaRaster怎么用？Java BufferedImage.getAlphaRaster使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类java.awt.image.BufferedImage的用法示例。
在下文中一共展示了BufferedImage.getAlphaRaster方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: createBitmap
import java.awt.image.BufferedImage; //导入方法依赖的package包/类
/**
* Create a backing bitmap, painting the texture into it with the specified
* parameters. The bitmap will be created at 2*height, so that even if
* there is some minor variation in height, it will not force recreating the
* bitmap
*/
private static BufferedImage createBitmap(int height, int type,
int yDecline) {
//Create an optimal image for blitting to the screen with no format conversion
BufferedImage result = GraphicsEnvironment.getLocalGraphicsEnvironment()
.getDefaultScreenDevice().getDefaultConfiguration().createCompatibleImage(
200, height * 2);
Graphics g = result.getGraphics();
if (result.getAlphaRaster() == null) {
Color c = type == FOCUS_TYPE ?
MetalViewTabDisplayerUI.getActBgColor() :
MetalViewTabDisplayerUI.getInactBgColor();
g.setColor(c);
g.fillRect(0, 0, DEFAULT_IMAGE_WIDTH, height * 2);
}
//draw the texture into the offscreen image
_drawTexture(g, 0, 0, DEFAULT_IMAGE_WIDTH, height * 2, type, yDecline);
return result;
}