canvas/source/null/null_textlayout.cxx

   1 /*************************************************************************
   2  *
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * Copyright 2008 by Sun Microsystems, Inc.
   6  *
   7  * OpenOffice.org - a multi-platform office productivity suite
   8  *
   9  * $RCSfile: null_textlayout.cxx,v $
  10  * $Revision: 1.6 $
  11  *
  12  * This file is part of OpenOffice.org.
  13  *
  14  * OpenOffice.org is free software: you can redistribute it and/or modify
  15  * it under the terms of the GNU Lesser General Public License version 3
  16  * only, as published by the Free Software Foundation.
  17  *
  18  * OpenOffice.org is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU Lesser General Public License version 3 for more details
  22  * (a copy is included in the LICENSE file that accompanied this code).
  23  *
  24  * You should have received a copy of the GNU Lesser General Public License
  25  * version 3 along with OpenOffice.org.  If not, see
  26  * <http://www.openoffice.org/license.html>
  27  * for a copy of the LGPLv3 License.
  28  *
  29  ************************************************************************/
  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_canvas.hxx"
  33
  34 #include <canvas/debug.hxx>
  35 #include <tools/diagnose_ex.h>
  36 #include <canvas/verbosetrace.hxx>
  37
  38 #include <basegfx/matrix/b2dhommatrix.hxx>
  39 #include <basegfx/numeric/ftools.hxx>
  40
  41 #include "null_textlayout.hxx"
  42 #include "null_spritecanvas.hxx"
  43
  44
  45 using namespace ::com::sun::star;
  46
  47 namespace nullcanvas
  48 {
  49     TextLayout::TextLayout( const rendering::StringContext&     aText,
  50                             sal_Int8                            nDirection,
  51                             sal_Int64                           /*nRandomSeed*/,
  52                             const CanvasFont::ImplRef&          rFont ) :
  53         TextLayout_Base( m_aMutex ),
  54         maText( aText ),
  55         maLogicalAdvancements(),
  56         mpFont( rFont ),
  57         mnTextDirection( nDirection )
  58     {
  59     }
  60
  61     TextLayout::~TextLayout()
  62     {
  63     }
  64
  65     void SAL_CALL TextLayout::disposing()
  66     {
  67         mpFont.reset();
  68     }
  69
  70     // XTextLayout
  71     uno::Sequence< uno::Reference< rendering::XPolyPolygon2D > > SAL_CALL TextLayout::queryTextShapes(  ) throw (uno::RuntimeException)
  72     {
  73         ::osl::MutexGuard aGuard( m_aMutex );
  74
  75         // TODO
  76         return uno::Sequence< uno::Reference< rendering::XPolyPolygon2D > >();
  77     }
  78
  79     uno::Sequence< geometry::RealRectangle2D > SAL_CALL TextLayout::queryInkMeasures(  ) throw (uno::RuntimeException)
  80     {
  81         ::osl::MutexGuard aGuard( m_aMutex );
  82
  83         // TODO
  84         return uno::Sequence< geometry::RealRectangle2D >();
  85     }
  86
  87     uno::Sequence< geometry::RealRectangle2D > SAL_CALL TextLayout::queryMeasures(  ) throw (uno::RuntimeException)
  88     {
  89         ::osl::MutexGuard aGuard( m_aMutex );
  90
  91         // TODO
  92         return uno::Sequence< geometry::RealRectangle2D >();
  93     }
  94
  95     uno::Sequence< double > SAL_CALL TextLayout::queryLogicalAdvancements(  ) throw (uno::RuntimeException)
  96     {
  97         ::osl::MutexGuard aGuard( m_aMutex );
  98
  99         return maLogicalAdvancements;
 100     }
 101
 102     void SAL_CALL TextLayout::applyLogicalAdvancements( const uno::Sequence< double >& aAdvancements ) throw (lang::IllegalArgumentException, uno::RuntimeException)
 103     {
 104         ::osl::MutexGuard aGuard( m_aMutex );
 105
 106         if( aAdvancements.getLength() != maText.Length )
 107         {
 108             OSL_TRACE( "TextLayout::applyLogicalAdvancements(): mismatching number of advancements" );
 109             throw lang::IllegalArgumentException();
 110         }
 111
 112         maLogicalAdvancements = aAdvancements;
 113     }
 114
 115     geometry::RealRectangle2D SAL_CALL TextLayout::queryTextBounds(  ) throw (uno::RuntimeException)
 116     {
 117         ::osl::MutexGuard aGuard( m_aMutex );
 118
 119         ENSURE_OR_THROW( mpFont.get(),
 120                           "TextLayout::queryTextBounds(): invalid font" );
 121
 122         // fake text bounds by either taking the advancement values,
 123         // or assuming square glyph boxes (width similar to height)
 124         const rendering::FontRequest& rFontRequest( mpFont->getFontRequest() );
 125         const double nFontSize( ::std::max( rFontRequest.CellSize,
 126                                             rFontRequest.ReferenceAdvancement ) );
 127         if( maLogicalAdvancements.getLength() )
 128         {
 129             return geometry::RealRectangle2D( 0, -nFontSize/2,
 130                                               maLogicalAdvancements[ maLogicalAdvancements.getLength()-1 ],
 131                                               nFontSize/2 );
 132         }
 133         else
 134         {
 135             return geometry::RealRectangle2D( 0, -nFontSize/2,
 136                                               nFontSize * maText.Length,
 137                                               nFontSize/2 );
 138         }
 139     }
 140
 141     double SAL_CALL TextLayout::justify( double /*nSize*/ ) throw (lang::IllegalArgumentException, uno::RuntimeException)
 142     {
 143         ::osl::MutexGuard aGuard( m_aMutex );
 144
 145         // TODO
 146         return 0.0;
 147     }
 148
 149     double SAL_CALL TextLayout::combinedJustify( const uno::Sequence< uno::Reference< rendering::XTextLayout > >& /*aNextLayouts*/,
 150                                                  double /*nSize*/ ) throw (lang::IllegalArgumentException, uno::RuntimeException)
 151     {
 152         ::osl::MutexGuard aGuard( m_aMutex );
 153
 154         // TODO
 155         return 0.0;
 156     }
 157
 158     rendering::TextHit SAL_CALL TextLayout::getTextHit( const geometry::RealPoint2D& /*aHitPoint*/ ) throw (uno::RuntimeException)
 159     {
 160         ::osl::MutexGuard aGuard( m_aMutex );
 161
 162         // TODO
 163         return rendering::TextHit();
 164     }
 165
 166     rendering::Caret SAL_CALL TextLayout::getCaret( sal_Int32 /*nInsertionIndex*/,
 167                                                     sal_Bool  /*bExcludeLigatures*/ ) throw (lang::IndexOutOfBoundsException, uno::RuntimeException)
 168     {
 169         ::osl::MutexGuard aGuard( m_aMutex );
 170
 171         // TODO
 172         return rendering::Caret();
 173     }
 174
 175     sal_Int32 SAL_CALL TextLayout::getNextInsertionIndex( sal_Int32 /*nStartIndex*/,
 176                                                           sal_Int32 /*nCaretAdvancement*/,
 177                                                           sal_Bool  /*bExcludeLigatures*/ ) throw (lang::IndexOutOfBoundsException, uno::RuntimeException)
 178     {
 179         ::osl::MutexGuard aGuard( m_aMutex );
 180
 181         // TODO
 182         return 0;
 183     }
 184
 185     uno::Reference< rendering::XPolyPolygon2D > SAL_CALL TextLayout::queryVisualHighlighting( sal_Int32 /*nStartIndex*/,
 186                                                                                               sal_Int32 /*nEndIndex*/ ) throw (lang::IndexOutOfBoundsException, uno::RuntimeException)
 187     {
 188         ::osl::MutexGuard aGuard( m_aMutex );
 189
 190         // TODO
 191         return uno::Reference< rendering::XPolyPolygon2D >();
 192     }
 193
 194     uno::Reference< rendering::XPolyPolygon2D > SAL_CALL TextLayout::queryLogicalHighlighting( sal_Int32 /*nStartIndex*/,
 195                                                                                                sal_Int32 /*nEndIndex*/ ) throw (lang::IndexOutOfBoundsException, uno::RuntimeException)
 196     {
 197         ::osl::MutexGuard aGuard( m_aMutex );
 198
 199         // TODO
 200         return uno::Reference< rendering::XPolyPolygon2D >();
 201     }
 202
 203     double SAL_CALL TextLayout::getBaselineOffset(  ) throw (uno::RuntimeException)
 204     {
 205         ::osl::MutexGuard aGuard( m_aMutex );
 206
 207         // TODO
 208         return 0.0;
 209     }
 210
 211     sal_Int8 SAL_CALL TextLayout::getMainTextDirection(  ) throw (uno::RuntimeException)
 212     {
 213         ::osl::MutexGuard aGuard( m_aMutex );
 214
 215         return mnTextDirection;
 216     }
 217
 218     uno::Reference< rendering::XCanvasFont > SAL_CALL TextLayout::getFont(  ) throw (uno::RuntimeException)
 219     {
 220         ::osl::MutexGuard aGuard( m_aMutex );
 221
 222         return mpFont.getRef();
 223     }
 224
 225     rendering::StringContext SAL_CALL TextLayout::getText(  ) throw (uno::RuntimeException)
 226     {
 227         ::osl::MutexGuard aGuard( m_aMutex );
 228
 229         return maText;
 230     }
 231
 232     bool TextLayout::draw( const rendering::ViewState&                                                  /*rViewState*/,
 233                            const rendering::RenderState&                                                /*rRenderState*/,
 234                            const uno::Reference< rendering::XGraphicDevice >&   /*xGraphicDevice*/ ) const
 235     {
 236         ::osl::MutexGuard aGuard( m_aMutex );
 237
 238         // TODO
 239
 240         return true;
 241     }
 242
 243
 244 #define SERVICE_NAME "com.sun.star.rendering.TextLayout"
 245 #define IMPLEMENTATION_NAME "NullCanvas::TextLayout"
 246
 247     ::rtl::OUString SAL_CALL TextLayout::getImplementationName() throw( uno::RuntimeException )
 248     {
 249         return ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( IMPLEMENTATION_NAME ) );
 250     }
 251
 252     sal_Bool SAL_CALL TextLayout::supportsService( const ::rtl::OUString& ServiceName ) throw( uno::RuntimeException )
 253     {
 254         return ServiceName.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM ( SERVICE_NAME ) );
 255     }
 256
 257     uno::Sequence< ::rtl::OUString > SAL_CALL TextLayout::getSupportedServiceNames()  throw( uno::RuntimeException )
 258     {
 259         uno::Sequence< ::rtl::OUString > aRet(1);
 260         aRet[0] = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM ( SERVICE_NAME ) );
 261
 262         return aRet;
 263     }
 264 }