int QDirectFBPaintDevice::metric(QPaintDevice::PaintDeviceMetric metric) const
{
if (!dfbSurface)
return 0;
int w, h;
dfbSurface->GetSize(dfbSurface, &w, &h);
switch (metric) {
case QPaintDevice::PdmWidth:
return w;
case QPaintDevice::PdmHeight:
return h;
case QPaintDevice::PdmWidthMM:
return (w * 1000) / dotsPerMeterX();
case QPaintDevice::PdmHeightMM:
return (h * 1000) / dotsPerMeterY();
case QPaintDevice::PdmPhysicalDpiX:
case QPaintDevice::PdmDpiX:
return (dotsPerMeterX() * 254) / 10000; // 0.0254 meters-per-inch
case QPaintDevice::PdmPhysicalDpiY:
case QPaintDevice::PdmDpiY:
return (dotsPerMeterY() * 254) / 10000; // 0.0254 meters-per-inch
case QPaintDevice::PdmDepth:
DFBSurfacePixelFormat format;
dfbSurface->GetPixelFormat(dfbSurface, &format);
return QDirectFBScreen::depth(format);
case QPaintDevice::PdmNumColors: {
if (lockedImage)
return lockedImage->numColors();
DFBResult result;
IDirectFBPalette *palette = 0;
unsigned int numColors = 0;
result = dfbSurface->GetPalette(dfbSurface, &palette);
if ((result != DFB_OK) || !palette)
return 0;
result = palette->GetSize(palette, &numColors);
palette->Release(palette);
if (result != DFB_OK)
return 0;
return numColors;
}
default:
qCritical("QDirectFBPaintDevice::metric(): Unhandled metric!");
return 0;
}
}
int QDirectFBPaintDevice::metric(QPaintDevice::PaintDeviceMetric metric) const
{
if (!dfbSurface)
return 0;
switch (metric) {
case QPaintDevice::PdmWidth:
case QPaintDevice::PdmHeight:
return (metric == PdmWidth ? size().width() : size().height());
case QPaintDevice::PdmWidthMM:
return (size().width() * 1000) / dotsPerMeterX();
case QPaintDevice::PdmHeightMM:
return (size().height() * 1000) / dotsPerMeterY();
case QPaintDevice::PdmPhysicalDpiX:
case QPaintDevice::PdmDpiX:
return (dotsPerMeterX() * 254) / 10000; // 0.0254 meters-per-inch
case QPaintDevice::PdmPhysicalDpiY:
case QPaintDevice::PdmDpiY:
return (dotsPerMeterY() * 254) / 10000; // 0.0254 meters-per-inch
case QPaintDevice::PdmDepth:
return QDirectFBScreen::depth(imageFormat);
case QPaintDevice::PdmNumColors: {
if (!lockedImage.isNull())
return lockedImage.colorCount();
DFBResult result;
IDirectFBPalette *palette = 0;
unsigned int numColors = 0;
result = dfbSurface->GetPalette(dfbSurface, &palette);
if ((result != DFB_OK) || !palette)
return 0;
result = palette->GetSize(palette, &numColors);
palette->Release(palette);
if (result != DFB_OK)
return 0;
return numColors;
}
default:
qCritical("QDirectFBPaintDevice::metric(): Unhandled metric!");
return 0;
}
}