Exemplos de DrawingContext::SetAlphaMask em C++ (Cpp)

Exemplo n.º 1

Arquivo: ServerPicture.cpp Projeto: simonsouth/haiku

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();
}