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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* 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 .
*/
#include <sal/config.h>
#include <basegfx/numeric/ftools.hxx>
#include <com/sun/star/rendering/PanoseProportion.hpp>
#include <cppuhelper/supportsservice.hxx>
#include <i18nlangtag/languagetag.hxx>
#include <rtl/math.hxx>
#include <vcl/metric.hxx>
#include "cairo_canvasfont.hxx"
#include "cairo_textlayout.hxx"
using namespace ::com::sun::star;
namespace cairocanvas
{
CanvasFont::CanvasFont( const rendering::FontRequest& rFontRequest,
const uno::Sequence< beans::PropertyValue >& /*rExtraFontProperties*/,
const geometry::Matrix2D& rFontMatrix,
const SurfaceProviderRef& rDevice ) :
CanvasFont_Base( m_aMutex ),
maFont( vcl::Font( rFontRequest.FontDescription.FamilyName,
rFontRequest.FontDescription.StyleName,
Size( 0, ::basegfx::fround(rFontRequest.CellSize) ) ) ),
maFontRequest( rFontRequest ),
mpRefDevice( rDevice )
{
maFont->SetAlignment( ALIGN_BASELINE );
maFont->SetCharSet( (rFontRequest.FontDescription.IsSymbolFont==css::util::TriState_YES) ? RTL_TEXTENCODING_SYMBOL : RTL_TEXTENCODING_UNICODE );
maFont->SetVertical( rFontRequest.FontDescription.IsVertical==css::util::TriState_YES );
// TODO(F2): improve panose->vclenum conversion
maFont->SetWeight( static_cast<FontWeight>(rFontRequest.FontDescription.FontDescription.Weight) );
maFont->SetItalic( (rFontRequest.FontDescription.FontDescription.Letterform<=8) ? ITALIC_NONE : ITALIC_NORMAL );
maFont->SetPitch(
rFontRequest.FontDescription.FontDescription.Proportion == rendering::PanoseProportion::MONO_SPACED
? PITCH_FIXED : PITCH_VARIABLE);
maFont->SetLanguage( LanguageTag::convertToLanguageType( rFontRequest.Locale, false));
// adjust to stretched/shrunk font
if( ::rtl::math::approxEqual( rFontMatrix.m00, rFontMatrix.m11) )
return;
VclPtr<OutputDevice> pOutDev( mpRefDevice->getOutputDevice() );
if( !pOutDev )
return;
const bool bOldMapState( pOutDev->IsMapModeEnabled() );
pOutDev->EnableMapMode(false);
const Size aSize = pOutDev->GetFontMetric( *maFont ).GetFontSize();
const double fDividend( rFontMatrix.m10 + rFontMatrix.m11 );
double fStretch = rFontMatrix.m00 + rFontMatrix.m01;
if( !::basegfx::fTools::equalZero( fDividend) )
fStretch /= fDividend;
const long nNewWidth = ::basegfx::fround( aSize.Width() * fStretch );
maFont->SetAverageFontWidth( nNewWidth );
pOutDev->EnableMapMode(bOldMapState);
}
void SAL_CALL CanvasFont::disposing()
{
SolarMutexGuard aGuard;
mpRefDevice.clear();
}
uno::Reference< rendering::XTextLayout > SAL_CALL CanvasFont::createTextLayout( const rendering::StringContext& aText, sal_Int8 nDirection, sal_Int64 nRandomSeed )
{
SolarMutexGuard aGuard;
if( !mpRefDevice.is() )
return uno::Reference< rendering::XTextLayout >(); // we're disposed
return new TextLayout( aText,
nDirection,
nRandomSeed,
Reference( this ),
mpRefDevice );
}
rendering::FontRequest SAL_CALL CanvasFont::getFontRequest( )
{
SolarMutexGuard aGuard;
return maFontRequest;
}
rendering::FontMetrics SAL_CALL CanvasFont::getFontMetrics( )
{
// TODO(F1)
return rendering::FontMetrics();
}
uno::Sequence< double > SAL_CALL CanvasFont::getAvailableSizes( )
{
// TODO(F1)
return uno::Sequence< double >();
}
uno::Sequence< beans::PropertyValue > SAL_CALL CanvasFont::getExtraFontProperties( )
{
// TODO(F1)
return uno::Sequence< beans::PropertyValue >();
}
OUString SAL_CALL CanvasFont::getImplementationName()
{
return "CairoCanvas::CanvasFont";
}
sal_Bool SAL_CALL CanvasFont::supportsService( const OUString& ServiceName )
{
return cppu::supportsService( this, ServiceName );
}
uno::Sequence< OUString > SAL_CALL CanvasFont::getSupportedServiceNames()
{
return { "com.sun.star.rendering.CanvasFont" };
}
vcl::Font const & CanvasFont::getVCLFont() const
{
return *maFont;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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