C++ (Cpp) wxBufferedDC::DrawLine示例

示例#1

文件： hdPolyLineFigure.cpp 项目： KrisShannon/pgadmin3

void hdPolyLineFigure::basicDraw(wxBufferedDC &context, hdDrawingView *view)
{
	int posIdx = view->getIdx();
	if(points[posIdx]->count() < 2)
	{
		return;
	}
	hdPoint start, end;

	if(startTerminal)
	{
		startTerminal->setLinePen(linePen);
		start = startTerminal->draw(context, getStartPoint(posIdx), pointAt(posIdx, 1), view);
	}
	else
	{
		start = getStartPoint(posIdx);
	}

	if(endTerminal)
	{
		endTerminal->setLinePen(linePen);
		end = endTerminal->draw(context, getEndPoint(posIdx), pointAt(posIdx, pointCount(posIdx) - 2), view);
	}
	else
	{
		end = getEndPoint(posIdx);
	}

	context.SetPen(linePen);
	for(int i = 0; i < points[posIdx]->count() - 1; i++)
	{
		hdPoint *p1 = (hdPoint *) points[posIdx]->getItemAt(i);
		hdPoint *p2 = (hdPoint *) points[posIdx]->getItemAt(i + 1);

		hdPoint copyP1 = hdPoint (*p1);
		view->CalcScrolledPosition(copyP1.x, copyP1.y, &copyP1.x, &copyP1.y);
		hdPoint copyP2 = hdPoint (*p2);
		view->CalcScrolledPosition(copyP2.x, copyP2.y, &copyP2.x, &copyP2.y);

		context.DrawLine(copyP1, copyP2);
	}
}