[Interest] Drawing slow.

[Bill Crocker]

Hello:

My newer, Qt based drawing program takes orders of magnitude longer to draw lines
than my good old plain X-Windows based drawing program.

The Qt call stack, as revealed by VTune, is:

QPainterPath::draw
QPaintEngineEx::draw
QRasterPaintEngine::stroke
QPaintEngineEx::stroke
QRasterPaintEngine::fill
QRasterizer::rasterize
QScanConverter::end

Am I using some fancy, expensive feature
that I should turn off.

Thanks.

Bill