toolkit/source/awt/vclxfont.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <string.h>
  21
  22 #include <toolkit/awt/vclxfont.hxx>
  23 #include <toolkit/helper/vclunohelper.hxx>
  24 #include <toolkit/helper/macros.hxx>
  25 #include <cppuhelper/typeprovider.hxx>
  26 #include <cppuhelper/queryinterface.hxx>
  27 #include <rtl/uuid.h>
  28 #include <rtl/ustring.h>
  29 #include <sal/alloca.h>
  30
  31 #include <vcl/outdev.hxx>
  32 #include <vcl/svapp.hxx>
  33
  34
  35 //  class VCLXFont
  36
  37 VCLXFont::VCLXFont()
  38 {
  39     mpFontMetric = NULL;
  40 }
  41
  42 VCLXFont::~VCLXFont()
  43 {
  44     delete mpFontMetric;
  45 }
  46
  47 void VCLXFont::Init( ::com::sun::star::awt::XDevice& rxDev, const vcl::Font& rFont )
  48 {
  49     mxDevice = &rxDev;
  50
  51     delete mpFontMetric;
  52     mpFontMetric = NULL;
  53
  54     maFont = rFont;
  55 }
  56
  57 bool VCLXFont::ImplAssertValidFontMetric()
  58 {
  59     if ( !mpFontMetric && mxDevice.is() )
  60     {
  61         OutputDevice* pOutDev = VCLUnoHelper::GetOutputDevice( mxDevice );
  62         if ( pOutDev )
  63         {
  64             vcl::Font aOldFont = pOutDev->GetFont();
  65             pOutDev->SetFont( maFont );
  66             mpFontMetric = new FontMetric( pOutDev->GetFontMetric() );
  67             pOutDev->SetFont( aOldFont );
  68         }
  69     }
  70     return mpFontMetric != nullptr;
  71 }
  72
  73
  74 // ::com::sun::star::uno::XInterface
  75 ::com::sun::star::uno::Any VCLXFont::queryInterface( const ::com::sun::star::uno::Type & rType ) throw(::com::sun::star::uno::RuntimeException, std::exception)
  76 {
  77     ::com::sun::star::uno::Any aRet = ::cppu::queryInterface( rType,
  78                                         (static_cast< ::com::sun::star::awt::XFont* >(this)),
  79                                         (static_cast< ::com::sun::star::awt::XFont2* >(this)),
  80                                         (static_cast< ::com::sun::star::lang::XUnoTunnel* >(this)),
  81                                         (static_cast< ::com::sun::star::lang::XTypeProvider* >(this)) );
  82     return (aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType ));
  83 }
  84
  85 // ::com::sun::star::lang::XUnoTunnel
  86 IMPL_XUNOTUNNEL( VCLXFont )
  87
  88 // ::com::sun::star::lang::XTypeProvider
  89 IMPL_XTYPEPROVIDER_START( VCLXFont )
  90     cppu::UnoType<com::sun::star::awt::XFont2>::get()
  91 IMPL_XTYPEPROVIDER_END
  92
  93
  94 ::com::sun::star::awt::FontDescriptor VCLXFont::getFontDescriptor(  ) throw(::com::sun::star::uno::RuntimeException, std::exception)
  95 {
  96     ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
  97
  98     return VCLUnoHelper::CreateFontDescriptor( maFont );
  99
 100 }
 101
 102 ::com::sun::star::awt::SimpleFontMetric VCLXFont::getFontMetric(  ) throw(::com::sun::star::uno::RuntimeException, std::exception)
 103 {
 104     ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
 105
 106     ::com::sun::star::awt::SimpleFontMetric aFM;
 107     if ( ImplAssertValidFontMetric() )
 108         aFM = VCLUnoHelper::CreateFontMetric( *mpFontMetric );
 109     return aFM;
 110 }
 111
 112 sal_Int16 VCLXFont::getCharWidth( sal_Unicode c ) throw(::com::sun::star::uno::RuntimeException, std::exception)
 113 {
 114     ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
 115
 116     sal_Int16 nRet = -1;
 117     OutputDevice* pOutDev = VCLUnoHelper::GetOutputDevice( mxDevice );
 118     if ( pOutDev )
 119     {
 120         vcl::Font aOldFont = pOutDev->GetFont();
 121         pOutDev->SetFont( maFont );
 122
 123         nRet = sal::static_int_cast< sal_Int16 >(
 124             pOutDev->GetTextWidth( OUString(c) ));
 125
 126         pOutDev->SetFont( aOldFont );
 127     }
 128     return nRet;
 129 }
 130
 131 ::com::sun::star::uno::Sequence< sal_Int16 > VCLXFont::getCharWidths( sal_Unicode nFirst, sal_Unicode nLast ) throw(::com::sun::star::uno::RuntimeException, std::exception)
 132 {
 133     ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
 134
 135     ::com::sun::star::uno::Sequence<sal_Int16> aSeq;
 136     OutputDevice* pOutDev = VCLUnoHelper::GetOutputDevice( mxDevice );
 137     if ( pOutDev )
 138     {
 139         vcl::Font aOldFont = pOutDev->GetFont();
 140         pOutDev->SetFont( maFont );
 141
 142         sal_Int16 nCount = nLast-nFirst + 1;
 143         aSeq = ::com::sun::star::uno::Sequence<sal_Int16>( nCount );
 144         for ( sal_uInt16 n = 0; n < nCount; n++ )
 145         {
 146             aSeq.getArray()[n] = sal::static_int_cast< sal_Int16 >(
 147                 pOutDev->GetTextWidth(
 148                     OUString(static_cast< sal_Unicode >(nFirst+n)) ));
 149         }
 150
 151         pOutDev->SetFont( aOldFont );
 152     }
 153     return aSeq;
 154 }
 155
 156 sal_Int32 VCLXFont::getStringWidth( const OUString& str ) throw(::com::sun::star::uno::RuntimeException, std::exception)
 157 {
 158     ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
 159
 160     sal_Int32 nRet = -1;
 161     OutputDevice* pOutDev = VCLUnoHelper::GetOutputDevice( mxDevice );
 162     if ( pOutDev )
 163     {
 164         vcl::Font aOldFont = pOutDev->GetFont();
 165         pOutDev->SetFont( maFont );
 166         nRet = pOutDev->GetTextWidth( str );
 167         pOutDev->SetFont( aOldFont );
 168     }
 169     return nRet;
 170 }
 171
 172 sal_Int32 VCLXFont::getStringWidthArray( const OUString& str, ::com::sun::star::uno::Sequence< sal_Int32 >& rDXArray ) throw(::com::sun::star::uno::RuntimeException, std::exception)
 173 {
 174     ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
 175
 176     sal_Int32 nRet = -1;
 177     OutputDevice* pOutDev = VCLUnoHelper::GetOutputDevice( mxDevice );
 178     if ( pOutDev )
 179     {
 180         vcl::Font aOldFont = pOutDev->GetFont();
 181         pOutDev->SetFont( maFont );
 182         long* pDXA = static_cast<long*>(alloca(str.getLength() * sizeof(long)));
 183         nRet = pOutDev->GetTextArray( str, pDXA );
 184         rDXArray = ::com::sun::star::uno::Sequence<sal_Int32>( str.getLength() );
 185         for(int i = 0; i < str.getLength(); i++)
 186         {
 187             rDXArray[i] = pDXA[i];
 188         }
 189         pOutDev->SetFont( aOldFont );
 190     }
 191     return nRet;
 192 }
 193
 194 void VCLXFont::getKernPairs( ::com::sun::star::uno::Sequence< sal_Unicode >& /*rnChars1*/, ::com::sun::star::uno::Sequence< sal_Unicode >& /*rnChars2*/, ::com::sun::star::uno::Sequence< sal_Int16 >& /*rnKerns*/ ) throw(::com::sun::star::uno::RuntimeException, std::exception)
 195 {
 196     // NOTE: this empty method is just used for keeping the related UNO-API stable
 197 }
 198
 199 // ::com::sun::star::awt::XFont2
 200 sal_Bool VCLXFont::hasGlyphs( const OUString& aText )
 201     throw(::com::sun::star::uno::RuntimeException, std::exception)
 202 {
 203     ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
 204     SolarMutexGuard aSolarGuard;
 205
 206     OutputDevice* pOutDev = VCLUnoHelper::GetOutputDevice( mxDevice );
 207     if ( pOutDev )
 208     {
 209         OUString aStr( aText );
 210         if ( pOutDev->HasGlyphs( maFont, aStr ) == -1 )
 211         {
 212             return sal_True;
 213         }
 214     }
 215
 216     return sal_False;
 217 }
 218
 219 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */