dx_canvasfont.hxx

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#pragma once

#include <cppuhelper/compbase.hxx>
#include <cppuhelper/basemutex.hxx>

#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/rendering/XCanvas.hpp>
#include <com/sun/star/rendering/XCanvasFont.hpp>

#include <rtl/ref.hxx>

#include <memory>

#include "dx_winstuff.hxx"
#include "dx_gdiplususer.hxx"


/* Definition of CanvasFont class */

namespace dxcanvas
{
    typedef std::shared_ptr< Gdiplus::Font >        FontSharedPtr;
    typedef std::shared_ptr< Gdiplus::FontFamily >  FontFamilySharedPtr;

    typedef ::cppu::WeakComponentImplHelper< css::rendering::XCanvasFont,
                                             css::lang::XServiceInfo > CanvasFont_Base;

    class CanvasFont : public ::cppu::BaseMutex,
                       public CanvasFont_Base
    {
    public:
        typedef rtl::Reference<CanvasFont> ImplRef;
        CanvasFont(const CanvasFont&) = delete;
        const CanvasFont& operator=(const CanvasFont&) = delete;

        CanvasFont( const css::rendering::FontRequest&                                     fontRequest,
                    const css::uno::Sequence< css::beans::PropertyValue >&    extraFontProperties,
                    const css::geometry::Matrix2D&                                         fontMatrix );

        virtual void SAL_CALL disposing() override;

        // XCanvasFont
        virtual css::uno::Reference< css::rendering::XTextLayout > SAL_CALL createTextLayout( const css::rendering::StringContext& aText, sal_Int8 nDirection, sal_Int64 nRandomSeed ) override;
        virtual css::rendering::FontRequest SAL_CALL getFontRequest(  ) override;
        virtual css::rendering::FontMetrics SAL_CALL getFontMetrics(  ) override;
        virtual css::uno::Sequence< double > SAL_CALL getAvailableSizes(  ) override;
        virtual css::uno::Sequence< css::beans::PropertyValue > SAL_CALL getExtraFontProperties(  ) override;

        // XServiceInfo
        virtual OUString SAL_CALL getImplementationName() override;
        virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
        virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;

        double              getCellAscent() const;
        double              getEmHeight() const;
        FontSharedPtr       getFont() const;
        const css::geometry::Matrix2D& getFontMatrix() const;
        sal_uInt32          getEmphasisMark() const { return mnEmphasisMark; }

    private:
        GDIPlusUserSharedPtr                        mpGdiPlusUser;
        FontFamilySharedPtr                         mpFontFamily;
        FontSharedPtr                               mpFont;
        css::rendering::FontRequest    maFontRequest;
        sal_uInt32                     mnEmphasisMark;
        css::geometry::Matrix2D        maFontMatrix;
    };

}

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