canvasbitmaphelper.hxx

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#pragma once
 
#include "canvashelper.hxx"
 
#include <vcl/bitmapex.hxx>
 
#include "bitmapbackbuffer.hxx"
 
 
namespace vclcanvas
{
    class CanvasBitmapHelper : public CanvasHelper
    {
    public:
        CanvasBitmapHelper();
 
        void init( const BitmapEx&                              rBitmap,
                   css::rendering::XGraphicDevice&              rDevice,
                   const OutDevProviderSharedPtr&               rOutDevProvider );
 
 
        // Overridden CanvasHelper functionality
        // =====================================
 
        void disposing();
 
        void clear();
 
        css::geometry::IntegerSize2D getSize() const;
 
        css::uno::Reference< css::rendering::XBitmap >
            getScaledBitmap( const css::geometry::RealSize2D&  newSize,
                             bool                                           beFast );
 
        css::uno::Sequence< sal_Int8 >
            getData( css::rendering::IntegerBitmapLayout&      bitmapLayout,
                     const css::geometry::IntegerRectangle2D&  rect );
 
        css::uno::Sequence< sal_Int8 >
            getPixel( css::rendering::IntegerBitmapLayout& bitmapLayout,
                      const css::geometry::IntegerPoint2D& pos );
 
        css::rendering::IntegerBitmapLayout getMemoryLayout() const;
 
        BitmapEx getBitmap() const;
 
    private:
 
        BitmapBackBufferSharedPtr   mpBackBuffer;
        OutDevProviderSharedPtr     mpOutDevReference;
    };
}
 
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