本文整理汇总了C++中DrawingContext::UpdateCurrentDrawingRegion方法的典型用法代码示例。如果您正苦于以下问题：C++ DrawingContext::UpdateCurrentDrawingRegion方法的具体用法？C++ DrawingContext::UpdateCurrentDrawingRegion怎么用？C++ DrawingContext::UpdateCurrentDrawingRegion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DrawingContext的用法示例。
在下文中一共展示了DrawingContext::UpdateCurrentDrawingRegion方法的2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:
static void
set_clipping_rects(void* _context, size_t numRects, const BRect rects[])
{
DrawingContext* context = reinterpret_cast<DrawingContext *>(_context);
// TODO: This might be too slow, we should copy the rects
// directly to BRegion's internal data
BRegion region;
for (uint32 c = 0; c < numRects; c++)
region.Include(rects[c]);
context->SetUserClipping(®ion);
context->UpdateCurrentDrawingRegion();
}示例2: new
static void
clip_to_picture(void* _context, int32 pictureToken, const BPoint& where,
bool clipToInverse)
{
DrawingContext* context = reinterpret_cast<DrawingContext *>(_context);
ServerPicture* picture = context->GetPicture(pictureToken);
if (picture == NULL)
return;
AlphaMask* mask = new(std::nothrow) AlphaMask(
picture, clipToInverse, where, *context->CurrentState());
context->SetAlphaMask(mask);
context->UpdateCurrentDrawingRegion();
if (mask != NULL)
mask->ReleaseReference();
picture->ReleaseReference();
}