src/mac/carbon/font.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        font.cpp
   3 // Purpose:     wxFont class
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "font.h"
  14 #endif
  15
  16 #include "wx/defs.h"
  17 #include "wx/string.h"
  18 #include "wx/font.h"
  19 #include "wx/fontutil.h"
  20 #include "wx/gdicmn.h"
  21 #include "wx/utils.h"
  22
  23 #include "wx/fontutil.h"
  24
  25 #include "wx/mac/private.h"
  26 #include "ATSUnicode.h"
  27
  28 #if !USE_SHARED_LIBRARIES
  29 IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject)
  30 #endif
  31
  32 class WXDLLEXPORT wxFontRefData: public wxGDIRefData
  33 {
  34     friend class WXDLLEXPORT wxFont;
  35 public:
  36     wxFontRefData()
  37         : m_fontId(0)
  38         , m_pointSize(10)
  39         , m_family(wxDEFAULT)
  40         , m_style(wxNORMAL)
  41         , m_weight(wxNORMAL)
  42         , m_underlined(FALSE)
  43         , m_faceName(wxT("Geneva"))
  44         , m_encoding(wxFONTENCODING_DEFAULT)
  45         , m_macFontNum(0)
  46         , m_macFontSize(0)
  47         , m_macFontStyle(0)
  48         , m_macATSUFontID()
  49     {
  50         Init(10, wxDEFAULT, wxNORMAL, wxNORMAL, FALSE,
  51              wxT("Geneva"), wxFONTENCODING_DEFAULT);
  52     }
  53
  54     wxFontRefData(const wxFontRefData& data)
  55         : wxGDIRefData()
  56         , m_fontId(data.m_fontId)
  57         , m_pointSize(data.m_pointSize)
  58         , m_family(data.m_family)
  59         , m_style(data.m_style)
  60         , m_weight(data.m_weight)
  61         , m_underlined(data.m_underlined)
  62         , m_faceName(data.m_faceName)
  63         , m_encoding(data.m_encoding)
  64         , m_macFontNum(data.m_macFontNum)
  65         , m_macFontSize(data.m_macFontSize)
  66         , m_macFontStyle(data.m_macFontStyle)
  67         , m_macATSUFontID(data.m_macATSUFontID)
  68     {
  69         Init(data.m_pointSize, data.m_family, data.m_style, data.m_weight,
  70              data.m_underlined, data.m_faceName, data.m_encoding);
  71     }
  72
  73     wxFontRefData(int size,
  74                   int family,
  75                   int style,
  76                   int weight,
  77                   bool underlined,
  78                   const wxString& faceName,
  79                   wxFontEncoding encoding)
  80         : m_fontId(0)
  81         , m_pointSize(size)
  82         , m_family(family)
  83         , m_style(style)
  84         , m_weight(weight)
  85         , m_underlined(underlined)
  86         , m_faceName(faceName)
  87         , m_encoding(encoding)
  88         , m_macFontNum(0)
  89         , m_macFontSize(0)
  90         , m_macFontStyle(0)
  91         , m_macATSUFontID(0)
  92     {
  93         Init(size, family, style, weight, underlined, faceName, encoding);
  94     }
  95
  96     virtual ~wxFontRefData();
  97     void SetNoAntiAliasing( bool no = TRUE ) { m_noAA = no; }
  98     bool GetNoAntiAliasing() { return m_noAA; }
  99
 100 protected:
 101     // common part of all ctors
 102     void Init(int size,
 103               int family,
 104               int style,
 105               int weight,
 106               bool underlined,
 107               const wxString& faceName,
 108               wxFontEncoding encoding);
 109
 110     // font characterstics
 111     int            m_fontId;
 112     int            m_pointSize;
 113     int            m_family;
 114     int            m_style;
 115     int            m_weight;
 116     bool           m_underlined;
 117     wxString       m_faceName;
 118     wxFontEncoding m_encoding;
 119     bool            m_noAA;      // No anti-aliasing
 120
 121 public:
 122     short       m_macFontNum;
 123     short       m_macFontSize;
 124     unsigned char  m_macFontStyle;
 125     wxUint32       m_macATSUFontID;
 126
 127     wxNativeFontInfo  m_info;
 128
 129 public:
 130     void        MacFindFont() ;
 131 };
 132 // ============================================================================
 133 // implementation
 134 // ============================================================================
 135
 136 // ----------------------------------------------------------------------------
 137 // wxFontRefData
 138 // ----------------------------------------------------------------------------
 139
 140 void wxFontRefData::Init(int pointSize,
 141                          int family,
 142                          int style,
 143                          int weight,
 144                          bool underlined,
 145                          const wxString& faceName,
 146                          wxFontEncoding encoding)
 147 {
 148     m_style = style;
 149     m_pointSize = pointSize;
 150     m_family = family;
 151     m_style = style;
 152     m_weight = weight;
 153     m_underlined = underlined;
 154     m_faceName = faceName;
 155     m_encoding = encoding;
 156
 157     m_macFontNum = 0 ;
 158     m_macFontSize = 0;
 159     m_macFontStyle = 0;
 160     m_fontId = 0;
 161     m_noAA = FALSE;
 162 }
 163
 164 wxFontRefData::~wxFontRefData()
 165 {
 166 }
 167
 168 void wxFontRefData::MacFindFont()
 169 {
 170     if( m_faceName.Length() == 0 )
 171     {
 172         switch( m_family )
 173         {
 174             case wxDEFAULT :
 175                 m_macFontNum = ::GetAppFont() ;
 176                 break ;
 177             case wxDECORATIVE :
 178                 ::GetFNum( "\pTimes" , &m_macFontNum) ;
 179                 break ;
 180             case wxROMAN :
 181                 ::GetFNum( "\pTimes" , &m_macFontNum) ;
 182                 break ;
 183             case wxSCRIPT :
 184                 ::GetFNum( "\pTimes" , &m_macFontNum) ;
 185                 break ;
 186             case wxSWISS :
 187                 ::GetFNum( "\pGeneva" , &m_macFontNum) ;
 188                 break ;
 189             case wxMODERN :
 190                 ::GetFNum( "\pMonaco" , &m_macFontNum) ;
 191                 break ;
 192         }
 193         Str255 name ;
 194         GetFontName( m_macFontNum , name ) ;
 195         m_faceName = wxMacMakeStringFromPascal( name ) ;
 196     }
 197     else
 198     {
 199         if ( m_faceName == wxT("systemfont") )
 200             m_macFontNum = ::GetSysFont() ;
 201         else if ( m_faceName == wxT("applicationfont") )
 202             m_macFontNum = ::GetAppFont() ;
 203         else
 204         {
 205             Str255 fontname ;
 206             wxMacStringToPascal( m_faceName , fontname ) ;
 207             ::GetFNum( fontname, &m_macFontNum);
 208         }
 209     }
 210
 211     m_macFontStyle = 0;
 212     if (m_weight == wxBOLD)
 213          m_macFontStyle |= bold;
 214     if (m_style == wxITALIC || m_style == wxSLANT)
 215         m_macFontStyle |= italic;
 216     if (m_underlined)
 217         m_macFontStyle |= underline;
 218     m_macFontSize = m_pointSize ;
 219
 220     //TODO:if we supply the style as an additional parameter we must make a testing
 221     //sequence in order to degrade gracefully while trying to maintain most of the style
 222     //information, meanwhile we just take the normal font and apply the features after
 223 #ifdef __WXDEBUG__
 224     OSStatus status =
 225 #endif // __WXDEBUG__
 226         ::ATSUFONDtoFontID(m_macFontNum, normal /*qdStyle*/, (UInt32*)&m_macATSUFontID);
 227     /*
 228     status = ATSUFindFontFromName ( (Ptr) m_faceName , strlen( m_faceName ) ,
 229         kFontFullName,    kFontMacintoshPlatform, kFontRomanScript , kFontNoLanguage  ,  (UInt32*)&m_macATSUFontID ) ;
 230     */
 231     wxASSERT_MSG( status == noErr , wxT("couldn't retrieve font identifier") ) ;
 232 }
 233
 234 // ----------------------------------------------------------------------------
 235 // wxFont
 236 // ----------------------------------------------------------------------------
 237
 238 void wxFont::Init()
 239 {
 240 }
 241
 242 bool wxFont::Create(const wxNativeFontInfo& info)
 243 {
 244     return Create(info.pointSize, info.family, info.style, info.weight,
 245                   info.underlined, info.faceName, info.encoding);
 246 }
 247
 248 wxFont::wxFont(const wxString& fontdesc)
 249 {
 250     wxNativeFontInfo info;
 251     if ( info.FromString(fontdesc) )
 252         (void)Create(info);
 253 }
 254
 255 bool wxFont::Create(int pointSize,
 256                     int family,
 257                     int style,
 258                     int weight,
 259                     bool underlined,
 260                     const wxString& faceName,
 261                     wxFontEncoding encoding)
 262 {
 263     UnRef();
 264     m_refData = new wxFontRefData(pointSize, family, style, weight,
 265                                   underlined, faceName, encoding);
 266
 267     RealizeResource();
 268
 269     return TRUE;
 270 }
 271
 272 wxFont::~wxFont()
 273 {
 274 }
 275
 276 bool wxFont::RealizeResource()
 277 {
 278     M_FONTDATA->MacFindFont() ;
 279     return TRUE;
 280 }
 281
 282 void wxFont::SetEncoding(wxFontEncoding encoding)
 283 {
 284     Unshare();
 285
 286     M_FONTDATA->m_encoding = encoding;
 287
 288     RealizeResource();
 289 }
 290
 291 void wxFont::Unshare()
 292 {
 293     // Don't change shared data
 294     if (!m_refData)
 295     {
 296         m_refData = new wxFontRefData();
 297     }
 298     else
 299     {
 300         wxFontRefData* ref = new wxFontRefData(*(wxFontRefData*)m_refData);
 301         UnRef();
 302         m_refData = ref;
 303     }
 304 }
 305
 306 void wxFont::SetPointSize(int pointSize)
 307 {
 308     Unshare();
 309
 310     M_FONTDATA->m_pointSize = pointSize;
 311
 312     RealizeResource();
 313 }
 314
 315 void wxFont::SetFamily(int family)
 316 {
 317     Unshare();
 318
 319     M_FONTDATA->m_family = family;
 320
 321     RealizeResource();
 322 }
 323
 324 void wxFont::SetStyle(int style)
 325 {
 326     Unshare();
 327
 328     M_FONTDATA->m_style = style;
 329
 330     RealizeResource();
 331 }
 332
 333 void wxFont::SetWeight(int weight)
 334 {
 335     Unshare();
 336
 337     M_FONTDATA->m_weight = weight;
 338
 339     RealizeResource();
 340 }
 341
 342 void wxFont::SetFaceName(const wxString& faceName)
 343 {
 344     Unshare();
 345
 346     M_FONTDATA->m_faceName = faceName;
 347
 348     RealizeResource();
 349 }
 350
 351 void wxFont::SetUnderlined(bool underlined)
 352 {
 353     Unshare();
 354
 355     M_FONTDATA->m_underlined = underlined;
 356
 357     RealizeResource();
 358 }
 359
 360 void wxFont::SetNoAntiAliasing( bool no )
 361 {
 362     Unshare();
 363
 364     M_FONTDATA->SetNoAntiAliasing( no );
 365
 366     RealizeResource();
 367 }
 368
 369 // ----------------------------------------------------------------------------
 370 // accessors
 371 // ----------------------------------------------------------------------------
 372
 373 // TODO: insert checks everywhere for M_FONTDATA == NULL!
 374
 375 int wxFont::GetPointSize() const
 376 {
 377     return M_FONTDATA->m_pointSize;
 378 }
 379
 380 int wxFont::GetFamily() const
 381 {
 382     return M_FONTDATA->m_family;
 383 }
 384
 385 int wxFont::GetStyle() const
 386 {
 387     return M_FONTDATA->m_style;
 388 }
 389
 390 int wxFont::GetWeight() const
 391 {
 392     return M_FONTDATA->m_weight;
 393 }
 394
 395 bool wxFont::GetUnderlined() const
 396 {
 397     return M_FONTDATA->m_underlined;
 398 }
 399
 400 wxString wxFont::GetFaceName() const
 401 {
 402     wxString str;
 403     if ( M_FONTDATA )
 404         str = M_FONTDATA->m_faceName ;
 405     return str;
 406 }
 407
 408 wxFontEncoding wxFont::GetEncoding() const
 409 {
 410     return M_FONTDATA->m_encoding;
 411 }
 412
 413 bool wxFont::GetNoAntiAliasing()
 414 {
 415     return M_FONTDATA->m_noAA;
 416 }
 417
 418 short wxFont::GetMacFontNum() const
 419 {
 420     return M_FONTDATA->m_macFontNum;
 421 }
 422
 423 short wxFont::GetMacFontSize() const
 424 {
 425     return M_FONTDATA->m_macFontSize;
 426 }
 427
 428 wxByte wxFont::GetMacFontStyle() const
 429 {
 430     return M_FONTDATA->m_macFontStyle;
 431 }
 432
 433 wxUint32 wxFont::GetMacATSUFontID() const
 434 {
 435     return M_FONTDATA->m_macATSUFontID;
 436 }
 437
 438 const wxNativeFontInfo *wxFont::GetNativeFontInfo() const
 439 {
 440     wxCHECK_MSG( Ok(), NULL, wxT("invalid font") );
 441
 442     M_FONTDATA->m_info.InitFromFont(*this);
 443
 444     return &(M_FONTDATA->m_info);
 445 }
 446