本文整理汇总了Java中org.eclipse.swt.SWT.TRANSPARENCY_PIXEL属性的典型用法代码示例。如果您正苦于以下问题：Java SWT.TRANSPARENCY_PIXEL属性的具体用法？Java SWT.TRANSPARENCY_PIXEL怎么用？Java SWT.TRANSPARENCY_PIXEL使用的例子？那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类org.eclipse.swt.SWT的用法示例。
在下文中一共展示了SWT.TRANSPARENCY_PIXEL属性的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: autoScaleImageData
private static ImageData autoScaleImageData(Device device, final ImageData imageData, float scaleFactor) {
int width = imageData.width;
int height = imageData.height;
int scaledWidth = Math.round(width * scaleFactor);
int scaledHeight = Math.round(height * scaleFactor);
ImageData imageMaskData = null;
if (imageData.getTransparencyType() == SWT.TRANSPARENCY_ALPHA) {
imageMaskData = new ImageData(width, height, 8, ALPHA_PALETTE, 0, imageData.alphaData);
} else if (imageData.getTransparencyType() == SWT.TRANSPARENCY_PIXEL || imageData.getTransparencyType() == SWT.TRANSPARENCY_MASK) {
ImageData transparencyMaskData = imageData.getTransparencyMask();
imageMaskData = new ImageData(width, height, 1, BW_PALETTE, transparencyMaskData.scanlinePad, transparencyMaskData.data);
}
Image original = new Image(device, imageData);
Image originalMask = null;
if (imageMaskData != null) {
originalMask = new Image(device, imageMaskData);
}
/* Create a 24 bit image data with alpha channel */
ImageData resultData = new ImageData(scaledWidth, scaledHeight, 24, new PaletteData(0xFF, 0xFF00, 0xFF0000));
ImageData resultMaskData = null;
if (imageMaskData != null) {
resultMaskData = new ImageData(scaledWidth, scaledHeight, imageMaskData.depth, imageMaskData.palette);
}
Image result = new Image(device, resultData);
Image resultMask = null;
GC gc = new GC(result);
gc.setAntialias(SWT.ON);
gc.drawImage(original, 0, 0, width, height, 0, 0, scaledWidth, scaledHeight);
gc.dispose();
if (resultMaskData != null) {
resultMask = new Image(device, resultMaskData);
gc = new GC(resultMask);
gc.setAntialias(SWT.ON);
gc.drawImage(originalMask, 0, 0, width, height, 0, 0, scaledWidth, scaledHeight);
gc.dispose();
}
original.dispose();
originalMask.dispose();
ImageData scaledResult = result.getImageData();
if (resultMask != null) {
ImageData scaledResultMaskData = resultMask.getImageData();
// Convert 1-bit mask
if (scaledResultMaskData.depth == 1) {
scaledResult.maskPad = scaledResultMaskData.scanlinePad;
scaledResult.maskData = scaledResultMaskData.data;
} else {
scaledResult.alphaData = scaledResultMaskData.data;
}
}
result.dispose();
resultMask.dispose();
return scaledResult;
}