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/**************************************************************
*
* 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.
*
*************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_canvas.hxx"
#include <canvas/debug.hxx>
#include <com/sun/star/rendering/PanoseProportion.hpp>
#include <rtl/math.hxx>
#include <basegfx/numeric/ftools.hxx>
#include <vcl/metric.hxx>
#include <i18npool/mslangid.hxx>
#include "cairo_canvasfont.hxx"
#include "cairo_textlayout.hxx"
using namespace ::com::sun::star;
namespace cairocanvas
{
namespace
{
// Little helper to encapsulate locking into policy class
class LocalGuard
{
public:
LocalGuard() :
aGuard( Application::GetSolarMutex() )
{
}
/// To be compatible with CanvasBase mutex concept
LocalGuard( const ::osl::Mutex& ) :
aGuard( Application::GetSolarMutex() )
{
}
private:
::vos::OGuard aGuard;
};
}
CanvasFont::CanvasFont( const rendering::FontRequest& rFontRequest,
const uno::Sequence< beans::PropertyValue >& /*rExtraFontProperties*/,
const geometry::Matrix2D& rFontMatrix,
const SurfaceProviderRef& rDevice ) :
CanvasFont_Base( m_aMutex ),
maFont( Font( rFontRequest.FontDescription.FamilyName,
rFontRequest.FontDescription.StyleName,
Size( 0, ::basegfx::fround(rFontRequest.CellSize) ) ) ),
maFontRequest( rFontRequest ),
mpRefDevice( rDevice )
{
maFont->SetAlign( ALIGN_BASELINE );
maFont->SetCharSet( (rFontRequest.FontDescription.IsSymbolFont==com::sun::star::util::TriState_YES) ? RTL_TEXTENCODING_SYMBOL : RTL_TEXTENCODING_UNICODE );
maFont->SetVertical( (rFontRequest.FontDescription.IsVertical==com::sun::star::util::TriState_YES) ? sal_True : sal_False );
// 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(MsLangId::convertLocaleToLanguage(rFontRequest.Locale));
// adjust to stretched/shrunk font
if( !::rtl::math::approxEqual( rFontMatrix.m00, rFontMatrix.m11) )
{
OutputDevice* pOutDev( mpRefDevice->getOutputDevice() );
if( pOutDev )
{
const bool bOldMapState( pOutDev->IsMapModeEnabled() );
pOutDev->EnableMapMode(sal_False);
const Size aSize = pOutDev->GetFontMetric( *maFont ).GetSize();
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->SetWidth( nNewWidth );
pOutDev->EnableMapMode(bOldMapState);
}
}
}
void SAL_CALL CanvasFont::disposing()
{
LocalGuard aGuard;
mpRefDevice.clear();
}
uno::Reference< rendering::XTextLayout > SAL_CALL CanvasFont::createTextLayout( const rendering::StringContext& aText, sal_Int8 nDirection, sal_Int64 nRandomSeed ) throw (uno::RuntimeException)
{
LocalGuard 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( ) throw (uno::RuntimeException)
{
LocalGuard aGuard;
return maFontRequest;
}
rendering::FontMetrics SAL_CALL CanvasFont::getFontMetrics( ) throw (uno::RuntimeException)
{
LocalGuard aGuard;
// TODO(F1)
return rendering::FontMetrics();
}
uno::Sequence< double > SAL_CALL CanvasFont::getAvailableSizes( ) throw (uno::RuntimeException)
{
LocalGuard aGuard;
// TODO(F1)
return uno::Sequence< double >();
}
uno::Sequence< beans::PropertyValue > SAL_CALL CanvasFont::getExtraFontProperties( ) throw (uno::RuntimeException)
{
LocalGuard aGuard;
// TODO(F1)
return uno::Sequence< beans::PropertyValue >();
}
#define IMPLEMENTATION_NAME "CairoCanvas::CanvasFont"
#define SERVICE_NAME "com.sun.star.rendering.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;
}
::Font CanvasFont::getVCLFont() const
{
return *maFont;
}
}
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