backbuffer.cxx

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#include <sal/config.h>

#include <vcl/svapp.hxx>

#include "backbuffer.hxx"


namespace vclcanvas
{
    BackBuffer::BackBuffer( const OutputDevice& rRefDevice,
                            bool                bMonochromeBuffer ) :
        maVDev( VclPtr<VirtualDevice>::Create( rRefDevice,
                                   bMonochromeBuffer ? DeviceFormat::BITMASK : DeviceFormat::DEFAULT ) )
    {
        if( bMonochromeBuffer )
            return;

        // #i95645#
#if defined( MACOSX )
        // use AA on VCLCanvas for Mac
        maVDev->SetAntialiasing( AntialiasingFlags::EnableB2dDraw | maVDev->GetAntialiasing() );
#else
        // switch off AA for WIN32 and UNIX, the VCLCanvas does not look good with it and
        // is not required to do AA. It would need to be adapted to use it correctly
        // (especially gradient painting). This will need extra work.
        maVDev->SetAntialiasing( maVDev->GetAntialiasing() & ~AntialiasingFlags::EnableB2dDraw);
#endif
    }

    BackBuffer::~BackBuffer()
    {
        SolarMutexGuard aGuard;
        maVDev.disposeAndClear();
    }

    OutputDevice& BackBuffer::getOutDev()
    {
        return *maVDev;
    }

    const OutputDevice& BackBuffer::getOutDev() const
    {
        return *maVDev;
    }

    void BackBuffer::setSize( const ::Size& rNewSize )
    {
        maVDev->SetOutputSizePixel( rNewSize );
    }

}

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