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.
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   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 <rtl/uuid.h>
  27 #include <rtl/ustring.h>
  28
  29 #include <vcl/outdev.hxx>
  30
  31 //  ----------------------------------------------------
  32 //  class VCLXFont
  33 //  ----------------------------------------------------
  34 VCLXFont::VCLXFont()
  35 {
  36     mpFontMetric = NULL;
  37 }
  38
  39 VCLXFont::~VCLXFont()
  40 {
  41     delete mpFontMetric;
  42 }
  43
  44 void VCLXFont::Init( ::com::sun::star::awt::XDevice& rxDev, const Font& rFont )
  45 {
  46     mxDevice = &rxDev;
  47
  48     delete mpFontMetric;
  49     mpFontMetric = NULL;
  50
  51     maFont = rFont;
  52 }
  53
  54 sal_Bool VCLXFont::ImplAssertValidFontMetric()
  55 {
  56     if ( !mpFontMetric && mxDevice.is() )
  57     {
  58         OutputDevice* pOutDev = VCLUnoHelper::GetOutputDevice( mxDevice );
  59         if ( pOutDev )
  60         {
  61             Font aOldFont = pOutDev->GetFont();
  62             pOutDev->SetFont( maFont );
  63             mpFontMetric = new FontMetric( pOutDev->GetFontMetric() );
  64             pOutDev->SetFont( aOldFont );
  65         }
  66     }
  67     return mpFontMetric ? sal_True : sal_False;
  68 }
  69
  70
  71 // ::com::sun::star::uno::XInterface
  72 ::com::sun::star::uno::Any VCLXFont::queryInterface( const ::com::sun::star::uno::Type & rType ) throw(::com::sun::star::uno::RuntimeException)
  73 {
  74     ::com::sun::star::uno::Any aRet = ::cppu::queryInterface( rType,
  75                                         (static_cast< ::com::sun::star::awt::XFont* >(this)),
  76                                         (static_cast< ::com::sun::star::awt::XFont2* >(this)),
  77                                         (static_cast< ::com::sun::star::lang::XUnoTunnel* >(this)),
  78                                         (static_cast< ::com::sun::star::lang::XTypeProvider* >(this)) );
  79     return (aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType ));
  80 }
  81
  82 // ::com::sun::star::lang::XUnoTunnel
  83 IMPL_XUNOTUNNEL( VCLXFont )
  84
  85 // ::com::sun::star::lang::XTypeProvider
  86 IMPL_XTYPEPROVIDER_START( VCLXFont )
  87     getCppuType( ( ::com::sun::star::uno::Reference< ::com::sun::star::awt::XFont2>* ) NULL )
  88 IMPL_XTYPEPROVIDER_END
  89
  90
  91 ::com::sun::star::awt::FontDescriptor VCLXFont::getFontDescriptor(  ) throw(::com::sun::star::uno::RuntimeException)
  92 {
  93     ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
  94
  95     return VCLUnoHelper::CreateFontDescriptor( maFont );
  96
  97 }
  98
  99 ::com::sun::star::awt::SimpleFontMetric VCLXFont::getFontMetric(  ) throw(::com::sun::star::uno::RuntimeException)
 100 {
 101     ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
 102
 103     ::com::sun::star::awt::SimpleFontMetric aFM;
 104     if ( ImplAssertValidFontMetric() )
 105         aFM = VCLUnoHelper::CreateFontMetric( *mpFontMetric );
 106     return aFM;
 107 }
 108
 109 sal_Int16 VCLXFont::getCharWidth( sal_Unicode c ) throw(::com::sun::star::uno::RuntimeException)
 110 {
 111     ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
 112
 113     sal_Int16 nRet = -1;
 114     OutputDevice* pOutDev = VCLUnoHelper::GetOutputDevice( mxDevice );
 115     if ( pOutDev )
 116     {
 117         Font aOldFont = pOutDev->GetFont();
 118         pOutDev->SetFont( maFont );
 119
 120         nRet = sal::static_int_cast< sal_Int16 >(
 121             pOutDev->GetTextWidth( OUString(c) ));
 122
 123         pOutDev->SetFont( aOldFont );
 124     }
 125     return nRet;
 126 }
 127
 128 ::com::sun::star::uno::Sequence< sal_Int16 > VCLXFont::getCharWidths( sal_Unicode nFirst, sal_Unicode nLast ) throw(::com::sun::star::uno::RuntimeException)
 129 {
 130     ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
 131
 132     ::com::sun::star::uno::Sequence<sal_Int16> aSeq;
 133     OutputDevice* pOutDev = VCLUnoHelper::GetOutputDevice( mxDevice );
 134     if ( pOutDev )
 135     {
 136         Font aOldFont = pOutDev->GetFont();
 137         pOutDev->SetFont( maFont );
 138
 139         sal_Int16 nCount = nLast-nFirst + 1;
 140         aSeq = ::com::sun::star::uno::Sequence<sal_Int16>( nCount );
 141         for ( sal_uInt16 n = 0; n < nCount; n++ )
 142         {
 143             aSeq.getArray()[n] = sal::static_int_cast< sal_Int16 >(
 144                 pOutDev->GetTextWidth(
 145                     OUString(static_cast< sal_Unicode >(nFirst+n)) ));
 146         }
 147
 148         pOutDev->SetFont( aOldFont );
 149     }
 150     return aSeq;
 151 }
 152
 153 sal_Int32 VCLXFont::getStringWidth( const OUString& str ) throw(::com::sun::star::uno::RuntimeException)
 154 {
 155     ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
 156
 157     sal_Int32 nRet = -1;
 158     OutputDevice* pOutDev = VCLUnoHelper::GetOutputDevice( mxDevice );
 159     if ( pOutDev )
 160     {
 161         Font aOldFont = pOutDev->GetFont();
 162         pOutDev->SetFont( maFont );
 163         nRet = pOutDev->GetTextWidth( str );
 164         pOutDev->SetFont( aOldFont );
 165     }
 166     return nRet;
 167 }
 168
 169 sal_Int32 VCLXFont::getStringWidthArray( const OUString& str, ::com::sun::star::uno::Sequence< sal_Int32 >& rDXArray ) throw(::com::sun::star::uno::RuntimeException)
 170 {
 171     ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
 172
 173     sal_Int32 nRet = -1;
 174     OutputDevice* pOutDev = VCLUnoHelper::GetOutputDevice( mxDevice );
 175     if ( pOutDev )
 176     {
 177         Font aOldFont = pOutDev->GetFont();
 178         pOutDev->SetFont( maFont );
 179         rDXArray = ::com::sun::star::uno::Sequence<sal_Int32>( str.getLength() );
 180         nRet = pOutDev->GetTextArray( str, rDXArray.getArray() );
 181         pOutDev->SetFont( aOldFont );
 182     }
 183     return nRet;
 184 }
 185
 186 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)
 187 {
 188     // NOTE: this empty method is just used for keeping the related UNO-API stable
 189 }
 190
 191 // ::com::sun::star::awt::XFont2
 192 sal_Bool VCLXFont::hasGlyphs( const OUString& aText )
 193     throw(::com::sun::star::uno::RuntimeException)
 194 {
 195     ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
 196
 197     OutputDevice* pOutDev = VCLUnoHelper::GetOutputDevice( mxDevice );
 198     if ( pOutDev )
 199     {
 200         String aStr( aText );
 201         if ( pOutDev->HasGlyphs( maFont, aStr, 0, aStr.Len() ) == STRING_LEN )
 202         {
 203             return sal_True;
 204         }
 205     }
 206
 207     return sal_False;
 208 }
 209
 210 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */