/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
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 *************************************************************/


// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_canvas.hxx"

#include <ctype.h> // don't ask. msdev breaks otherwise...
#include "dx_winstuff.hxx"
#include "dx_spritecanvas.hxx"
#include "dx_canvasfont.hxx"
#include "dx_textlayout.hxx"

#include <com/sun/star/rendering/XSpriteCanvas.hpp>
#include <com/sun/star/rendering/PanoseWeight.hpp>

using namespace ::com::sun::star;

namespace dxcanvas
{
    namespace
    {
        INT calcFontStyle( const rendering::FontRequest& rFontRequest )
        {
            INT nFontStyle( Gdiplus::FontStyleRegular );

            if( rFontRequest.FontDescription.FontDescription.Weight > rendering::PanoseWeight::BOOK )
                nFontStyle = Gdiplus::FontStyleBold;

            return nFontStyle;
        }
    }

    CanvasFont::CanvasFont( const rendering::FontRequest& 					rFontRequest,
                            const uno::Sequence< beans::PropertyValue >& 	/*extraFontProperties*/,
                            const geometry::Matrix2D& 						fontMatrix ) :
        CanvasFont_Base( m_aMutex ),
        mpGdiPlusUser( GDIPlusUser::createInstance() ),
        // TODO(F1): extraFontProperties, fontMatrix
        mpFontFamily(),
        mpFont(),
        maFontRequest( rFontRequest ),
		maFontMatrix( fontMatrix )
    {
        const sal_Int32            nLen(rFontRequest.FontDescription.FamilyName.getLength());
        const sal_Unicode*         pStr(rFontRequest.FontDescription.FamilyName.getStr());
        std::vector< sal_Unicode > pStrBuf(nLen+1,0);
        std::copy(pStr,pStr+nLen,&pStrBuf[0]);

        mpFontFamily.reset( new Gdiplus::FontFamily(reinterpret_cast<LPCWSTR>(&pStrBuf[0]),NULL) );
        if( !mpFontFamily->IsAvailable() )
            mpFontFamily.reset( new Gdiplus::FontFamily(L"Arial",NULL) );

        mpFont.reset( new Gdiplus::Font( mpFontFamily.get(),
                                         static_cast<Gdiplus::REAL>(rFontRequest.CellSize),
                                         calcFontStyle( rFontRequest ),
                                         Gdiplus::UnitWorld ));
    }

    void SAL_CALL CanvasFont::disposing()
    {
        ::osl::MutexGuard aGuard( m_aMutex );

        mpFont.reset();
        mpFontFamily.reset();
        mpGdiPlusUser.reset();
    }

    uno::Reference< rendering::XTextLayout > SAL_CALL CanvasFont::createTextLayout( const rendering::StringContext& aText,
                                                                                    sal_Int8 						nDirection,
                                                                                    sal_Int64 						nRandomSeed ) throw (uno::RuntimeException)
    {
        ::osl::MutexGuard aGuard( m_aMutex );

        return new TextLayout( aText, nDirection, nRandomSeed, ImplRef( this ) );
    }

    uno::Sequence< double > SAL_CALL CanvasFont::getAvailableSizes(  ) throw (uno::RuntimeException)
    {
        ::osl::MutexGuard aGuard( m_aMutex );

        // TODO
        return uno::Sequence< double >();
    }

    uno::Sequence< beans::PropertyValue > SAL_CALL CanvasFont::getExtraFontProperties(  ) throw (uno::RuntimeException)
    {
        ::osl::MutexGuard aGuard( m_aMutex );

        // TODO
        return uno::Sequence< beans::PropertyValue >();
    }

    rendering::FontRequest SAL_CALL CanvasFont::getFontRequest(  ) throw (uno::RuntimeException)
    {
        ::osl::MutexGuard aGuard( m_aMutex );

        return maFontRequest;
    }

    rendering::FontMetrics SAL_CALL CanvasFont::getFontMetrics(  ) throw (uno::RuntimeException)
    {
        ::osl::MutexGuard aGuard( m_aMutex );

        // TODO
        return rendering::FontMetrics();
    }

#define SERVICE_NAME "com.sun.star.rendering.CanvasFont"
#define IMPLEMENTATION_NAME "DXCanvas::CanvasFont"

    ::rtl::OUString SAL_CALL CanvasFont::getImplementationName() throw( uno::RuntimeException )
    {
        return ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( IMPLEMENTATION_NAME ) );
    }

    sal_Bool SAL_CALL CanvasFont::supportsService( const ::rtl::OUString& ServiceName ) throw( uno::RuntimeException )
    {
        return ServiceName.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM ( SERVICE_NAME ) );
    }

    uno::Sequence< ::rtl::OUString > SAL_CALL CanvasFont::getSupportedServiceNames()  throw( uno::RuntimeException )
    {
        uno::Sequence< ::rtl::OUString > aRet(1);
        aRet[0] = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM ( SERVICE_NAME ) );

        return aRet;
    }

    double CanvasFont::getCellAscent() const
    {
        ::osl::MutexGuard aGuard( m_aMutex );

        return mpFontFamily->GetCellAscent(0); // TODO(F1): rFontRequest.styleName
    }

    double CanvasFont::getEmHeight() const
    {
        ::osl::MutexGuard aGuard( m_aMutex );

        return mpFontFamily->GetEmHeight(0); // TODO(F1): rFontRequest.styleName
    }

    FontSharedPtr CanvasFont::getFont() const
    {
        ::osl::MutexGuard aGuard( m_aMutex );

        return mpFont;
    }

	const ::com::sun::star::geometry::Matrix2D& CanvasFont::getFontMatrix() const
	{
        ::osl::MutexGuard aGuard( m_aMutex );

		return maFontMatrix;
	}
}