1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 // MARKER(update_precomp.py): autogen include statement, do not remove 23 #include "precompiled_canvas.hxx" 24 25 #include <canvas/debug.hxx> 26 27 #include <com/sun/star/rendering/PanoseProportion.hpp> 28 29 #include <rtl/math.hxx> 30 #include <basegfx/numeric/ftools.hxx> 31 32 #include <vcl/metric.hxx> 33 #include <i18npool/mslangid.hxx> 34 35 #include "cairo_canvasfont.hxx" 36 #include "cairo_textlayout.hxx" 37 38 using namespace ::com::sun::star; 39 40 namespace cairocanvas 41 { 42 namespace 43 { 44 // Little helper to encapsulate locking into policy class 45 class LocalGuard 46 { 47 public: 48 LocalGuard() : 49 aGuard( Application::GetSolarMutex() ) 50 { 51 } 52 53 // To be compatible with CanvasBase mutex concept 54 LocalGuard( const ::osl::Mutex& ) : 55 aGuard( Application::GetSolarMutex() ) 56 { 57 } 58 59 private: 60 ::vos::OGuard aGuard; 61 }; 62 } 63 64 CanvasFont::CanvasFont( const rendering::FontRequest& rFontRequest, 65 const uno::Sequence< beans::PropertyValue >& /*rExtraFontProperties*/, 66 const geometry::Matrix2D& rFontMatrix, 67 const SurfaceProviderRef& rDevice ) : 68 CanvasFont_Base( m_aMutex ), 69 maFont( Font( rFontRequest.FontDescription.FamilyName, 70 rFontRequest.FontDescription.StyleName, 71 Size( 0, ::basegfx::fround(rFontRequest.CellSize) ) ) ), 72 maFontRequest( rFontRequest ), 73 mpRefDevice( rDevice ) 74 { 75 maFont->SetAlign( ALIGN_BASELINE ); 76 maFont->SetCharSet( (rFontRequest.FontDescription.IsSymbolFont==com::sun::star::util::TriState_YES) ? RTL_TEXTENCODING_SYMBOL : RTL_TEXTENCODING_UNICODE ); 77 maFont->SetVertical( (rFontRequest.FontDescription.IsVertical==com::sun::star::util::TriState_YES) ? sal_True : sal_False ); 78 79 // TODO(F2): improve panose->vclenum conversion 80 maFont->SetWeight( static_cast<FontWeight>(rFontRequest.FontDescription.FontDescription.Weight) ); 81 maFont->SetItalic( (rFontRequest.FontDescription.FontDescription.Letterform<=8) ? ITALIC_NONE : ITALIC_NORMAL ); 82 maFont->SetPitch( 83 rFontRequest.FontDescription.FontDescription.Proportion == rendering::PanoseProportion::MONO_SPACED 84 ? PITCH_FIXED : PITCH_VARIABLE); 85 86 maFont->SetLanguage(MsLangId::convertLocaleToLanguage(rFontRequest.Locale)); 87 88 // adjust to stretched/shrunk font 89 if( !::rtl::math::approxEqual( rFontMatrix.m00, rFontMatrix.m11) ) 90 { 91 OutputDevice* pOutDev( mpRefDevice->getOutputDevice() ); 92 93 if( pOutDev ) 94 { 95 const bool bOldMapState( pOutDev->IsMapModeEnabled() ); 96 pOutDev->EnableMapMode(sal_False); 97 98 const Size aSize = pOutDev->GetFontMetric( *maFont ).GetSize(); 99 100 const double fDividend( rFontMatrix.m10 + rFontMatrix.m11 ); 101 double fStretch = (rFontMatrix.m00 + rFontMatrix.m01); 102 103 if( !::basegfx::fTools::equalZero( fDividend) ) 104 fStretch /= fDividend; 105 106 const long nNewWidth = ::basegfx::fround( aSize.Width() * fStretch ); 107 108 maFont->SetWidth( nNewWidth ); 109 110 pOutDev->EnableMapMode(bOldMapState); 111 } 112 } 113 } 114 115 void SAL_CALL CanvasFont::disposing() 116 { 117 LocalGuard aGuard; 118 119 mpRefDevice.clear(); 120 } 121 122 uno::Reference< rendering::XTextLayout > SAL_CALL CanvasFont::createTextLayout( const rendering::StringContext& aText, sal_Int8 nDirection, sal_Int64 nRandomSeed ) throw (uno::RuntimeException) 123 { 124 LocalGuard aGuard; 125 126 if( !mpRefDevice.is() ) 127 return uno::Reference< rendering::XTextLayout >(); // we're disposed 128 129 return new TextLayout( aText, 130 nDirection, 131 nRandomSeed, 132 Reference( this ), 133 mpRefDevice ); 134 } 135 136 rendering::FontRequest SAL_CALL CanvasFont::getFontRequest( ) throw (uno::RuntimeException) 137 { 138 LocalGuard aGuard; 139 140 return maFontRequest; 141 } 142 143 rendering::FontMetrics SAL_CALL CanvasFont::getFontMetrics( ) throw (uno::RuntimeException) 144 { 145 LocalGuard aGuard; 146 147 // TODO(F1) 148 return rendering::FontMetrics(); 149 } 150 151 uno::Sequence< double > SAL_CALL CanvasFont::getAvailableSizes( ) throw (uno::RuntimeException) 152 { 153 LocalGuard aGuard; 154 155 // TODO(F1) 156 return uno::Sequence< double >(); 157 } 158 159 uno::Sequence< beans::PropertyValue > SAL_CALL CanvasFont::getExtraFontProperties( ) throw (uno::RuntimeException) 160 { 161 LocalGuard aGuard; 162 163 // TODO(F1) 164 return uno::Sequence< beans::PropertyValue >(); 165 } 166 167 #define IMPLEMENTATION_NAME "CairoCanvas::CanvasFont" 168 #define SERVICE_NAME "com.sun.star.rendering.CanvasFont" 169 170 ::rtl::OUString SAL_CALL CanvasFont::getImplementationName() throw( uno::RuntimeException ) 171 { 172 return ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( IMPLEMENTATION_NAME ) ); 173 } 174 175 sal_Bool SAL_CALL CanvasFont::supportsService( const ::rtl::OUString& ServiceName ) throw( uno::RuntimeException ) 176 { 177 return ServiceName.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM ( SERVICE_NAME ) ); 178 } 179 180 uno::Sequence< ::rtl::OUString > SAL_CALL CanvasFont::getSupportedServiceNames() throw( uno::RuntimeException ) 181 { 182 uno::Sequence< ::rtl::OUString > aRet(1); 183 aRet[0] = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM ( SERVICE_NAME ) ); 184 185 return aRet; 186 } 187 188 ::Font CanvasFont::getVCLFont() const 189 { 190 return *maFont; 191 } 192 } 193 194 /* vim: set noet sw=4 ts=4: */ 195