vcl/source/gdi/mapmod.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_vcl.hxx"
  33 #include <tools/stream.hxx>
  34 #include <tools/vcompat.hxx>
  35 #include <tools/debug.hxx>
  36 #include <vcl/mapmod.hxx>
  37
  38 // =======================================================================
  39
  40 DBG_NAME( MapMode )
  41
  42 // -----------------------------------------------------------------------
  43
  44 ImplMapMode::ImplMapMode() :
  45     maOrigin( 0, 0 ),
  46     maScaleX( 1, 1 ),
  47     maScaleY( 1, 1 )
  48 {
  49     mnRefCount  = 1;
  50     meUnit      = MAP_PIXEL;
  51     mbSimple    = FALSE;
  52 }
  53
  54 // -----------------------------------------------------------------------
  55
  56 ImplMapMode::ImplMapMode( const ImplMapMode& rImplMapMode ) :
  57     maOrigin( rImplMapMode.maOrigin ),
  58     maScaleX( rImplMapMode.maScaleX ),
  59     maScaleY( rImplMapMode.maScaleY )
  60 {
  61     mnRefCount      = 1;
  62     meUnit          = rImplMapMode.meUnit;
  63     mbSimple        = FALSE;
  64 }
  65
  66 // -----------------------------------------------------------------------
  67
  68 SvStream& operator>>( SvStream& rIStm, ImplMapMode& rImplMapMode )
  69 {
  70     VersionCompat       aCompat( rIStm, STREAM_READ );
  71     UINT16                      nTmp16;
  72
  73     rIStm >> nTmp16; rImplMapMode.meUnit = (MapUnit) nTmp16;
  74     rIStm >> rImplMapMode.maOrigin >> rImplMapMode.maScaleX >>
  75              rImplMapMode.maScaleY >> rImplMapMode.mbSimple;
  76
  77     return rIStm;
  78 }
  79
  80 // -----------------------------------------------------------------------
  81
  82 SvStream& operator<<( SvStream& rOStm, const ImplMapMode& rImplMapMode )
  83 {
  84     VersionCompat aCompat( rOStm, STREAM_WRITE, 1 );
  85
  86     rOStm << (UINT16) rImplMapMode.meUnit <<
  87              rImplMapMode.maOrigin <<
  88              rImplMapMode.maScaleX <<
  89              rImplMapMode.maScaleY <<
  90              rImplMapMode.mbSimple;
  91
  92     return rOStm;
  93 }
  94
  95 // -----------------------------------------------------------------------
  96
  97 ImplMapMode* ImplMapMode::ImplGetStaticMapMode( MapUnit eUnit )
  98 {
  99     static long aStaticImplMapModeAry[(MAP_LASTENUMDUMMY)*sizeof(ImplMapMode)/sizeof(long)];
 100
 101     // #i19496 check for out-of-bounds
 102      if( eUnit >= MAP_LASTENUMDUMMY )
 103         return (ImplMapMode*)aStaticImplMapModeAry;
 104
 105     ImplMapMode* pImplMapMode = ((ImplMapMode*)aStaticImplMapModeAry)+eUnit;
 106     if ( !pImplMapMode->mbSimple )
 107     {
 108         Fraction aDefFraction( 1, 1 );
 109         pImplMapMode->maScaleX  = aDefFraction;
 110         pImplMapMode->maScaleY  = aDefFraction;
 111         pImplMapMode->meUnit    = eUnit;
 112         pImplMapMode->mbSimple  = TRUE;
 113     }
 114
 115     return pImplMapMode;
 116 }
 117
 118 // -----------------------------------------------------------------------
 119
 120 inline void MapMode::ImplMakeUnique()
 121 {
 122     // Falls noch andere Referenzen bestehen, dann kopieren
 123     if ( mpImplMapMode->mnRefCount != 1 )
 124     {
 125         if ( mpImplMapMode->mnRefCount )
 126             mpImplMapMode->mnRefCount--;
 127         mpImplMapMode = new ImplMapMode( *mpImplMapMode );
 128     }
 129 }
 130
 131 // -----------------------------------------------------------------------
 132
 133 MapMode::MapMode()
 134 {
 135     DBG_CTOR( MapMode, NULL );
 136
 137     mpImplMapMode = ImplMapMode::ImplGetStaticMapMode( MAP_PIXEL );
 138 }
 139
 140 // -----------------------------------------------------------------------
 141
 142 MapMode::MapMode( const MapMode& rMapMode )
 143 {
 144     DBG_CTOR( MapMode, NULL );
 145     DBG_CHKOBJ( &rMapMode, MapMode, NULL );
 146     DBG_ASSERT( rMapMode.mpImplMapMode->mnRefCount < 0xFFFFFFFE, "MapMode: RefCount overflow" );
 147
 148     // shared Instance Daten uebernehmen und Referenzcounter erhoehen
 149     mpImplMapMode = rMapMode.mpImplMapMode;
 150     // RefCount == 0 fuer statische Objekte
 151     if ( mpImplMapMode->mnRefCount )
 152         mpImplMapMode->mnRefCount++;
 153 }
 154
 155 // -----------------------------------------------------------------------
 156
 157 MapMode::MapMode( MapUnit eUnit )
 158 {
 159     DBG_CTOR( MapMode, NULL );
 160
 161     mpImplMapMode = ImplMapMode::ImplGetStaticMapMode( eUnit );
 162 }
 163
 164 // -----------------------------------------------------------------------
 165
 166 MapMode::MapMode( MapUnit eUnit, const Point& rLogicOrg,
 167                   const Fraction& rScaleX, const Fraction& rScaleY )
 168 {
 169     DBG_CTOR( MapMode, NULL );
 170
 171     mpImplMapMode           = new ImplMapMode;
 172     mpImplMapMode->meUnit   = eUnit;
 173     mpImplMapMode->maOrigin = rLogicOrg;
 174     mpImplMapMode->maScaleX = rScaleX;
 175     mpImplMapMode->maScaleY = rScaleY;
 176 }
 177
 178 // -----------------------------------------------------------------------
 179
 180 MapMode::~MapMode()
 181 {
 182     DBG_DTOR( MapMode, NULL );
 183
 184     // Wenn es keine statischen ImpDaten sind, dann loeschen, wenn es
 185     // die letzte Referenz ist, sonst Referenzcounter decrementieren
 186     if ( mpImplMapMode->mnRefCount )
 187     {
 188         if ( mpImplMapMode->mnRefCount == 1 )
 189             delete mpImplMapMode;
 190         else
 191             mpImplMapMode->mnRefCount--;
 192     }
 193 }
 194
 195 // -----------------------------------------------------------------------
 196
 197 void MapMode::SetMapUnit( MapUnit eUnit )
 198 {
 199     DBG_CHKTHIS( MapMode, NULL );
 200
 201     ImplMakeUnique();
 202     mpImplMapMode->meUnit = eUnit;
 203 }
 204
 205 // -----------------------------------------------------------------------
 206
 207 void MapMode::SetOrigin( const Point& rLogicOrg )
 208 {
 209     DBG_CHKTHIS( MapMode, NULL );
 210
 211     ImplMakeUnique();
 212     mpImplMapMode->maOrigin = rLogicOrg;
 213 }
 214
 215 // -----------------------------------------------------------------------
 216
 217 void MapMode::SetScaleX( const Fraction& rScaleX )
 218 {
 219     DBG_CHKTHIS( MapMode, NULL );
 220
 221     ImplMakeUnique();
 222     mpImplMapMode->maScaleX = rScaleX;
 223 }
 224
 225 // -----------------------------------------------------------------------
 226
 227 void MapMode::SetScaleY( const Fraction& rScaleY )
 228 {
 229     DBG_CHKTHIS( MapMode, NULL );
 230
 231     ImplMakeUnique();
 232     mpImplMapMode->maScaleY = rScaleY;
 233 }
 234
 235 // -----------------------------------------------------------------------
 236
 237 MapMode& MapMode::operator=( const MapMode& rMapMode )
 238 {
 239     DBG_CHKTHIS( MapMode, NULL );
 240     DBG_CHKOBJ( &rMapMode, MapMode, NULL );
 241     DBG_ASSERT( rMapMode.mpImplMapMode->mnRefCount < 0xFFFFFFFE, "MapMode: RefCount overflow" );
 242
 243     // Zuerst Referenzcounter erhoehen, damit man sich selbst zuweisen kann
 244     // RefCount == 0 fuer statische Objekte
 245     if ( rMapMode.mpImplMapMode->mnRefCount )
 246         rMapMode.mpImplMapMode->mnRefCount++;
 247
 248     // Wenn es keine statischen ImpDaten sind, dann loeschen, wenn es
 249     // die letzte Referenz ist, sonst Referenzcounter decrementieren
 250     if ( mpImplMapMode->mnRefCount )
 251     {
 252         if ( mpImplMapMode->mnRefCount == 1 )
 253             delete mpImplMapMode;
 254         else
 255             mpImplMapMode->mnRefCount--;
 256     }
 257
 258     mpImplMapMode = rMapMode.mpImplMapMode;
 259
 260     return *this;
 261 }
 262
 263 // -----------------------------------------------------------------------
 264
 265 BOOL MapMode::operator==( const MapMode& rMapMode ) const
 266 {
 267     DBG_CHKTHIS( MapMode, NULL );
 268     DBG_CHKOBJ( &rMapMode, MapMode, NULL );
 269
 270     if ( mpImplMapMode == rMapMode.mpImplMapMode )
 271         return TRUE;
 272
 273     if ( (mpImplMapMode->meUnit   == rMapMode.mpImplMapMode->meUnit)   &&
 274          (mpImplMapMode->maOrigin == rMapMode.mpImplMapMode->maOrigin) &&
 275          (mpImplMapMode->maScaleX == rMapMode.mpImplMapMode->maScaleX) &&
 276          (mpImplMapMode->maScaleY == rMapMode.mpImplMapMode->maScaleY) )
 277         return TRUE;
 278     else
 279         return FALSE;
 280 }
 281
 282 // -----------------------------------------------------------------------
 283
 284 BOOL MapMode::IsDefault() const
 285 {
 286     DBG_CHKTHIS( MapMode, NULL );
 287
 288     ImplMapMode* pDefMapMode = ImplMapMode::ImplGetStaticMapMode( MAP_PIXEL );
 289     if ( mpImplMapMode == pDefMapMode )
 290         return TRUE;
 291
 292     if ( (mpImplMapMode->meUnit   == pDefMapMode->meUnit)   &&
 293          (mpImplMapMode->maOrigin == pDefMapMode->maOrigin) &&
 294          (mpImplMapMode->maScaleX == pDefMapMode->maScaleX) &&
 295          (mpImplMapMode->maScaleY == pDefMapMode->maScaleY) )
 296         return TRUE;
 297     else
 298         return FALSE;
 299 }
 300
 301 // -----------------------------------------------------------------------
 302
 303 SvStream& operator>>( SvStream& rIStm, MapMode& rMapMode )
 304 {
 305     rMapMode.ImplMakeUnique();
 306     return (rIStm >> *rMapMode.mpImplMapMode);
 307 }
 308
 309 // -----------------------------------------------------------------------
 310
 311 SvStream& operator<<( SvStream& rOStm, const MapMode& rMapMode )
 312 {
 313     return (rOStm << *rMapMode.mpImplMapMode);
 314 }