office-gobmx/canvas/source/vcl/canvasbitmap.cxx
2011-11-27 12:57:22 -06:00

139 lines
5.1 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#include <canvas/debug.hxx>
#include <tools/diagnose_ex.h>
#include "canvasbitmap.hxx"
#include <vcl/bmpacc.hxx>
using namespace ::com::sun::star;
namespace vclcanvas
{
// Currently, the only way to generate an XBitmap is from
// XGraphicDevice.getCompatibleBitmap(). Therefore, we don't even
// take a bitmap here, but a VDev directly.
CanvasBitmap::CanvasBitmap( const ::Size& rSize,
bool bAlphaBitmap,
rendering::XGraphicDevice& rDevice,
const OutDevProviderSharedPtr& rOutDevProvider )
{
// create bitmap for given reference device
// ========================================
const sal_uInt16 nBitCount( (sal_uInt16)24U );
const BitmapPalette* pPalette = NULL;
Bitmap aBitmap( rSize, nBitCount, pPalette );
// only create alpha channel bitmap, if factory requested
// that. Providing alpha-channeled bitmaps by default has,
// especially under VCL, a huge performance penalty (have to
// use alpha VDev, then).
if( bAlphaBitmap )
{
AlphaMask aAlpha ( rSize );
maCanvasHelper.init( BitmapEx( aBitmap, aAlpha ),
rDevice,
rOutDevProvider );
}
else
{
maCanvasHelper.init( BitmapEx( aBitmap ),
rDevice,
rOutDevProvider );
}
}
CanvasBitmap::CanvasBitmap( const BitmapEx& rBitmap,
rendering::XGraphicDevice& rDevice,
const OutDevProviderSharedPtr& rOutDevProvider )
{
maCanvasHelper.init( rBitmap, rDevice, rOutDevProvider );
}
#define IMPLEMENTATION_NAME "VCLCanvas.CanvasBitmap"
#define SERVICE_NAME "com.sun.star.rendering.CanvasBitmap"
::rtl::OUString SAL_CALL CanvasBitmap::getImplementationName( ) throw (uno::RuntimeException)
{
return ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( IMPLEMENTATION_NAME ) );
}
sal_Bool SAL_CALL CanvasBitmap::supportsService( const ::rtl::OUString& ServiceName ) throw (uno::RuntimeException)
{
return ServiceName.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM ( SERVICE_NAME ) );
}
uno::Sequence< ::rtl::OUString > SAL_CALL CanvasBitmap::getSupportedServiceNames( ) throw (uno::RuntimeException)
{
uno::Sequence< ::rtl::OUString > aRet(1);
aRet[0] = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM ( SERVICE_NAME ) );
return aRet;
}
BitmapEx CanvasBitmap::getBitmap() const
{
SolarMutexGuard aGuard;
// TODO(T3): Rework to use shared_ptr all over the place for
// BmpEx. This is highly un-threadsafe
return maCanvasHelper.getBitmap();
}
bool CanvasBitmap::repaint( const GraphicObjectSharedPtr& rGrf,
const rendering::ViewState& viewState,
const rendering::RenderState& renderState,
const ::Point& rPt,
const ::Size& rSz,
const GraphicAttr& rAttr ) const
{
SolarMutexGuard aGuard;
mbSurfaceDirty = true;
return maCanvasHelper.repaint( rGrf, viewState, renderState, rPt, rSz, rAttr );
}
uno::Any SAL_CALL CanvasBitmap::getFastPropertyValue( sal_Int32 nHandle ) throw (uno::RuntimeException)
{
if( nHandle == 0 ) {
BitmapEx* pBitmapEx = new BitmapEx( getBitmap() );
return uno::Any( reinterpret_cast<sal_Int64>( pBitmapEx ) );
}
return uno::Any( sal_Int64(0) );
}
}
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