// The buffer should only be set by VirtualDevice::SetOutputSizePixelScaleOffsetAndLOKBuffer() // when used to draw a tile for LOK. It cannot be used for something else, because otherwise // this would need a way to detect whether this is a tiled paint that needs LOK handling // or whether it's that something else that just might happen to be called with LOK active.
assert(comphelper::LibreOfficeKit::isActive()); // Force scaling of the painting double fScale = comphelper::LibreOfficeKit::getDPIScale();
// Force image-based surface if small. Small VirtualDevice instances are often used for small // temporary bitmaps that will eventually have GetBitmap() called on them, which would cause // X Server roundtrip with Xlib-based surface, which may be way more costly than doing the drawing // in software (which should be fairly cheap for small surfaces anyway).
m_pSurface = cairo_surface_create_similar_image(m_pRefSurface, CAIRO_FORMAT_ARGB32, nNewDX, nNewDY);
dl_cairo_surface_set_device_scale(m_pSurface, fXScale, fYScale);
} else
{
m_pSurface = cairo_surface_create_similar(m_pRefSurface, CAIRO_CONTENT_COLOR_ALPHA, nNewDX, nNewDY); // Device scale is inherited in this case.
}
SAL_WARN_IF(cairo_surface_status(m_pSurface) != CAIRO_STATUS_SUCCESS, "vcl", "surface of size " << nNewDX << " by " << nNewDY << " creation failed with status of: " << cairo_status_to_string(cairo_surface_status(m_pSurface))); return cairo_surface_status(m_pSurface) == CAIRO_STATUS_SUCCESS;
}
if (m_pSurface && m_aFrameSize.getX() == nNewDX && m_aFrameSize.getY() == nNewDY)
{
assert(false && "this means that the pBuffer parameter is going to be ignored"); returntrue;
}
if (m_bOwnsSurface)
bSuccess = CreateSurface(nNewDX, nNewDY, pBuffer); else
assert(false && "this means that the pBuffer parameter is going to be ignored");
assert(m_pSurface);
// update device in existing graphics for (autoconst& graphic : m_aGraphics)
graphic->setSurface(m_pSurface, m_aFrameSize);
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