本文整理汇总了C++中GraphicsContext::colorFilter方法的典型用法代码示例。如果您正苦于以下问题：C++ GraphicsContext::colorFilter方法的具体用法？C++ GraphicsContext::colorFilter怎么用？C++ GraphicsContext::colorFilter使用的例子？那么, 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GraphicsContext的用法示例。
在下文中一共展示了GraphicsContext::colorFilter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C++代码示例。
示例1: drawPatternForContainer
void SVGImage::drawPatternForContainer(GraphicsContext& context, const FloatSize containerSize,
float zoom, const FloatRect& srcRect, const FloatSize& tileScale, const FloatPoint& phase,
SkXfermode::Mode compositeOp, const FloatRect& dstRect,
const FloatSize& repeatSpacing, const KURL& url)
{
// Tile adjusted for scaling/stretch.
FloatRect tile(srcRect);
tile.scale(tileScale.width(), tileScale.height());
// Expand the tile to account for repeat spacing.
FloatRect spacedTile(tile);
spacedTile.expand(FloatSize(repeatSpacing));
SkPictureBuilder patternPicture(spacedTile, nullptr, &context);
if (!DrawingRecorder::useCachedDrawingIfPossible(patternPicture.context(), *this, DisplayItem::Type::SVGImage)) {
DrawingRecorder patternPictureRecorder(patternPicture.context(), *this, DisplayItem::Type::SVGImage, spacedTile);
// When generating an expanded tile, make sure we don't draw into the spacing area.
if (tile != spacedTile)
patternPicture.context().clip(tile);
SkPaint paint;
drawForContainer(patternPicture.context().canvas(), paint, containerSize, zoom, tile, srcRect, url);
}
RefPtr<const SkPicture> tilePicture = patternPicture.endRecording();
SkMatrix patternTransform;
patternTransform.setTranslate(phase.x() + spacedTile.x(), phase.y() + spacedTile.y());
RefPtr<SkShader> patternShader = adoptRef(SkShader::CreatePictureShader(
tilePicture.get(), SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode,
&patternTransform, nullptr));
SkPaint paint;
paint.setShader(patternShader.get());
paint.setXfermodeMode(compositeOp);
paint.setColorFilter(context.colorFilter());
context.drawRect(dstRect, paint);
}