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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  13 #pragma implementation "font.h"
  14 #endif
  15
  16 #include "wx/wxprec.h"
  17
  18 #include "wx/string.h"
  19 #include "wx/font.h"
  20 #include "wx/fontutil.h"
  21 #include "wx/gdicmn.h"
  22 #include "wx/utils.h"
  23
  24 #include "wx/fontutil.h"
  25
  26 #include "wx/mac/private.h"
  27 #include <ATSUnicode.h>
  28
  29 #if !USE_SHARED_LIBRARIES
  30 IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject)
  31 #endif
  32
  33 class WXDLLEXPORT wxFontRefData: public wxGDIRefData
  34 {
  35     friend class WXDLLEXPORT wxFont;
  36 public:
  37     wxFontRefData()
  38         : m_fontId(0)
  39         , m_pointSize(10)
  40         , m_family(wxDEFAULT)
  41         , m_style(wxNORMAL)
  42         , m_weight(wxNORMAL)
  43         , m_underlined(FALSE)
  44         , m_faceName(wxT("Geneva"))
  45         , m_encoding(wxFONTENCODING_DEFAULT)
  46         , m_macFontNum(0)
  47         , m_macFontSize(0)
  48         , m_macFontStyle(0)
  49         , m_macATSUStyle(0)
  50         , m_macATSUFontID(0)
  51     {
  52         Init(10, wxDEFAULT, wxNORMAL, wxNORMAL, FALSE,
  53              wxT("Geneva"), wxFONTENCODING_DEFAULT);
  54     }
  55
  56     wxFontRefData(const wxFontRefData& data)
  57         : wxGDIRefData()
  58         , m_fontId(data.m_fontId)
  59         , m_pointSize(data.m_pointSize)
  60         , m_family(data.m_family)
  61         , m_style(data.m_style)
  62         , m_weight(data.m_weight)
  63         , m_underlined(data.m_underlined)
  64         , m_faceName(data.m_faceName)
  65         , m_encoding(data.m_encoding)
  66         , m_macFontNum(data.m_macFontNum)
  67         , m_macFontSize(data.m_macFontSize)
  68         , m_macFontStyle(data.m_macFontStyle)
  69         , m_macATSUStyle(0)
  70         , m_macATSUFontID(data.m_macATSUFontID)
  71     {
  72         Init(data.m_pointSize, data.m_family, data.m_style, data.m_weight,
  73              data.m_underlined, data.m_faceName, data.m_encoding);
  74     }
  75
  76     wxFontRefData(int size,
  77                   int family,
  78                   int style,
  79                   int weight,
  80                   bool underlined,
  81                   const wxString& faceName,
  82                   wxFontEncoding encoding)
  83         : m_fontId(0)
  84         , m_pointSize(size)
  85         , m_family(family)
  86         , m_style(style)
  87         , m_weight(weight)
  88         , m_underlined(underlined)
  89         , m_faceName(faceName)
  90         , m_encoding(encoding)
  91         , m_macFontNum(0)
  92         , m_macFontSize(0)
  93         , m_macFontStyle(0)
  94         , m_macATSUStyle(0)
  95         , m_macATSUFontID(0)
  96     {
  97         Init(size, family, style, weight, underlined, faceName, encoding);
  98     }
  99
 100     virtual ~wxFontRefData();
 101     void SetNoAntiAliasing( bool no = TRUE ) { m_noAA = no; }
 102     bool GetNoAntiAliasing() const { return m_noAA; }
 103
 104 protected:
 105     // common part of all ctors
 106     void Init(int size,
 107               int family,
 108               int style,
 109               int weight,
 110               bool underlined,
 111               const wxString& faceName,
 112               wxFontEncoding encoding);
 113
 114     // font characterstics
 115     int             m_fontId;
 116     int             m_pointSize;
 117     int             m_family;
 118     int             m_style;
 119     int             m_weight;
 120     bool            m_underlined;
 121     wxString        m_faceName;
 122     wxFontEncoding  m_encoding;
 123     bool            m_noAA;      // No anti-aliasing
 124
 125 public:
 126     short           m_macFontNum;
 127     short           m_macFontSize;
 128     Style           m_macFontStyle;
 129
 130     // ATSU Font Information
 131
 132     // this is splitted into an ATSU font id that may
 133     // contain some styles (special bold fonts etc) and
 134     // these are the additional qd styles that are not
 135     // included in the ATSU font id
 136     ATSUStyle       m_macATSUStyle ;
 137     ATSUFontID      m_macATSUFontID;
 138     Style           m_macATSUAdditionalQDStyles ;
 139
 140     // for true themeing support we must store the correct font
 141     // information here, as this speeds up and optimizes rendering
 142     ThemeFontID     m_macThemeFontID ;
 143
 144     wxNativeFontInfo  m_info;
 145
 146 public:
 147     void        MacFindFont() ;
 148 };
 149 // ============================================================================
 150 // implementation
 151 // ============================================================================
 152
 153 // ----------------------------------------------------------------------------
 154 // wxFontRefData
 155 // ----------------------------------------------------------------------------
 156
 157 void wxFontRefData::Init(int pointSize,
 158                          int family,
 159                          int style,
 160                          int weight,
 161                          bool underlined,
 162                          const wxString& faceName,
 163                          wxFontEncoding encoding)
 164 {
 165     m_style = style;
 166     m_pointSize = pointSize;
 167     m_family = family;
 168     m_style = style;
 169     m_weight = weight;
 170     m_underlined = underlined;
 171     m_faceName = faceName;
 172     m_encoding = encoding;
 173
 174     m_macFontNum = 0 ;
 175     m_macFontSize = 0;
 176     m_macFontStyle = 0;
 177     m_macATSUFontID = 0;
 178     m_macATSUAdditionalQDStyles = 0 ;
 179     m_macATSUStyle = NULL ;
 180
 181     m_macThemeFontID = kThemeCurrentPortFont ;
 182     m_noAA = FALSE;
 183 }
 184
 185 wxFontRefData::~wxFontRefData()
 186 {
 187     if ( m_macATSUStyle )
 188     {
 189         ::ATSUDisposeStyle((ATSUStyle)m_macATSUStyle);
 190         m_macATSUStyle = NULL ;
 191     }
 192 }
 193
 194 void wxFontRefData::MacFindFont()
 195 {
 196     if ( m_macThemeFontID != kThemeCurrentPortFont )
 197     {
 198         Str255 fontName ;
 199         GetThemeFont(m_macThemeFontID , GetApplicationScript() , fontName , &m_macFontSize , &m_macFontStyle ) ;
 200         m_faceName = wxMacMakeStringFromPascal( fontName ) ;
 201         if ( m_macFontStyle & bold )
 202             m_weight = wxBOLD ;
 203         else
 204             m_weight = wxNORMAL ;
 205         if ( m_macFontStyle & italic )
 206             m_style = wxITALIC ;
 207         if ( m_macFontStyle & underline )
 208             m_underlined = true ;
 209         ::GetFNum( fontName, &m_macFontNum);
 210         m_pointSize = m_macFontSize ;
 211     }
 212     else
 213     {
 214         if( m_faceName.Length() == 0 )
 215         {
 216             switch( m_family )
 217             {
 218                 case wxDEFAULT :
 219                     m_macFontNum = ::GetAppFont() ;
 220                     break ;
 221                 case wxSCRIPT :
 222                 case wxROMAN :
 223                 case wxDECORATIVE :
 224 #ifdef __WXMAC_OSX__
 225                     ::GetFNum( "\pTimes" , &m_macFontNum) ;
 226 #else
 227                     ::GetFNum( "\pTimes" , &m_macFontNum) ;
 228 #endif
 229                     break ;
 230                 case wxSWISS :
 231 #ifdef __WXMAC_OSX__
 232                     ::GetFNum( "\pLucida Grande" , &m_macFontNum) ;
 233 #else
 234                     ::GetFNum( "\pGeneva" , &m_macFontNum) ;
 235 #endif
 236                     break ;
 237                 case wxMODERN :
 238 #ifdef __WXMAC_OSX__
 239                     ::GetFNum( "\pMonaco" , &m_macFontNum) ;
 240 #else
 241                     ::GetFNum( "\pMonaco" , &m_macFontNum) ;
 242 #endif
 243                     break ;
 244             }
 245             Str255 name ;
 246             ::GetFontName( m_macFontNum , name ) ;
 247             m_faceName = wxMacMakeStringFromPascal( name ) ;
 248         }
 249         else
 250         {
 251             if ( m_faceName == wxT("systemfont") )
 252                 m_macFontNum = ::GetSysFont() ;
 253             else if ( m_faceName == wxT("applicationfont") )
 254                 m_macFontNum = ::GetAppFont() ;
 255             else
 256             {
 257                 Str255 fontname ;
 258                 wxMacStringToPascal( m_faceName , fontname ) ;
 259                 ::GetFNum( fontname, &m_macFontNum);
 260             }
 261         }
 262
 263         m_macFontStyle = 0;
 264         if (m_weight == wxBOLD)
 265              m_macFontStyle |= bold;
 266         if (m_style == wxITALIC || m_style == wxSLANT)
 267             m_macFontStyle |= italic;
 268         if (m_underlined)
 269             m_macFontStyle |= underline;
 270         m_macFontSize = m_pointSize ;
 271     }
 272
 273     // we try to get as much styles as possible into ATSU
 274
 275     Fixed atsuSize = IntToFixed( m_macFontSize ) ;
 276
 277     Style atsuStyle = normal ;
 278     verify_noerr(::ATSUFONDtoFontID(m_macFontNum, atsuStyle , (UInt32*)&m_macATSUFontID) );
 279     if ( m_macFontStyle & bold )
 280     {
 281         ATSUFontID test ;
 282         if ( ::ATSUFONDtoFontID(m_macFontNum, atsuStyle | bold , &test) == noErr )
 283         {
 284             atsuStyle |= bold ;
 285             m_macATSUFontID = test ;
 286         }
 287     }
 288     if ( m_macFontStyle & italic )
 289     {
 290         ATSUFontID test ;
 291         if ( ::ATSUFONDtoFontID(m_macFontNum, atsuStyle | italic , &test) == noErr )
 292         {
 293             atsuStyle |= italic ;
 294             m_macATSUFontID = test ;
 295         }
 296     }
 297     if ( m_macFontStyle & underline )
 298     {
 299         ATSUFontID test ;
 300         if ( ::ATSUFONDtoFontID(m_macFontNum, atsuStyle | underline , &test) == noErr )
 301         {
 302             atsuStyle |= underline ;
 303             m_macATSUFontID = test ;
 304         }
 305     }
 306
 307     m_macATSUAdditionalQDStyles = m_macFontStyle & (~atsuStyle ) ;
 308
 309     if ( m_macATSUStyle )
 310     {
 311         ::ATSUDisposeStyle((ATSUStyle)m_macATSUStyle);
 312         m_macATSUStyle = NULL ;
 313     }
 314     OSStatus status = ::ATSUCreateStyle((ATSUStyle *)&m_macATSUStyle) ;
 315     wxASSERT_MSG( status == noErr , wxT("couldn't create ATSU style") ) ;
 316     ATSUAttributeTag atsuTags[] =
 317     {
 318             kATSUFontTag ,
 319             kATSUSizeTag ,
 320             kATSUVerticalCharacterTag,
 321             kATSUQDBoldfaceTag ,
 322             kATSUQDItalicTag ,
 323             kATSUQDUnderlineTag ,
 324             kATSUQDCondensedTag ,
 325             kATSUQDExtendedTag ,
 326     } ;
 327     ByteCount atsuSizes[sizeof(atsuTags)/sizeof(ATSUAttributeTag)] =
 328     {
 329             sizeof( ATSUFontID ) ,
 330             sizeof( Fixed ) ,
 331             sizeof( ATSUVerticalCharacterType),
 332             sizeof( Boolean ) ,
 333             sizeof( Boolean ) ,
 334             sizeof( Boolean ) ,
 335             sizeof( Boolean ) ,
 336             sizeof( Boolean ) ,
 337     } ;
 338     Boolean kTrue = true ;
 339     Boolean kFalse = false ;
 340
 341     ATSUVerticalCharacterType kHorizontal = kATSUStronglyHorizontal;
 342     ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags)/sizeof(ATSUAttributeTag)] =
 343     {
 344             &m_macATSUFontID ,
 345             &atsuSize ,
 346             &kHorizontal,
 347             (m_macATSUAdditionalQDStyles & bold) ? &kTrue : &kFalse ,
 348             (m_macATSUAdditionalQDStyles & italic) ? &kTrue : &kFalse ,
 349             (m_macATSUAdditionalQDStyles & underline) ? &kTrue : &kFalse ,
 350             (m_macATSUAdditionalQDStyles & condense) ? &kTrue : &kFalse ,
 351             (m_macATSUAdditionalQDStyles & extend) ? &kTrue : &kFalse ,
 352     } ;
 353     status = ::ATSUSetAttributes((ATSUStyle)m_macATSUStyle, sizeof(atsuTags)/sizeof(ATSUAttributeTag) ,
 354         atsuTags, atsuSizes, atsuValues);
 355
 356     wxASSERT_MSG( status == noErr , wxT("couldn't Modify ATSU style") ) ;
 357 }
 358
 359 // ----------------------------------------------------------------------------
 360 // wxFont
 361 // ----------------------------------------------------------------------------
 362
 363 void wxFont::Init()
 364 {
 365 }
 366
 367 bool wxFont::Create(const wxNativeFontInfo& info)
 368 {
 369     return Create(info.pointSize, info.family, info.style, info.weight,
 370                   info.underlined, info.faceName, info.encoding);
 371 }
 372
 373 wxFont::wxFont(const wxString& fontdesc)
 374 {
 375     wxNativeFontInfo info;
 376     if ( info.FromString(fontdesc) )
 377         (void)Create(info);
 378 }
 379
 380 bool wxFont::Create(int pointSize,
 381                     int family,
 382                     int style,
 383                     int weight,
 384                     bool underlined,
 385                     const wxString& faceName,
 386                     wxFontEncoding encoding)
 387 {
 388     UnRef();
 389     m_refData = new wxFontRefData(pointSize, family, style, weight,
 390                                   underlined, faceName, encoding);
 391
 392     RealizeResource();
 393
 394     return TRUE;
 395 }
 396
 397 bool wxFont::MacCreateThemeFont(wxUint16 themeFontID )
 398 {
 399     UnRef();
 400     m_refData = new wxFontRefData(12, wxDEFAULT , wxFONTSTYLE_NORMAL , wxFONTWEIGHT_NORMAL ,false, wxEmptyString, wxFONTENCODING_DEFAULT);
 401     M_FONTDATA->m_macThemeFontID = themeFontID ;
 402     RealizeResource();
 403
 404     return TRUE;
 405 }
 406
 407 wxFont::~wxFont()
 408 {
 409 }
 410
 411 bool wxFont::RealizeResource()
 412 {
 413     M_FONTDATA->MacFindFont() ;
 414     return TRUE;
 415 }
 416
 417 void wxFont::SetEncoding(wxFontEncoding encoding)
 418 {
 419     Unshare();
 420
 421     M_FONTDATA->m_encoding = encoding;
 422
 423     RealizeResource();
 424 }
 425
 426 void wxFont::Unshare()
 427 {
 428     // Don't change shared data
 429     if (!m_refData)
 430     {
 431         m_refData = new wxFontRefData();
 432     }
 433     else
 434     {
 435         wxFontRefData* ref = new wxFontRefData(*(wxFontRefData*)m_refData);
 436         UnRef();
 437         m_refData = ref;
 438     }
 439 }
 440
 441 void wxFont::SetPointSize(int pointSize)
 442 {
 443     Unshare();
 444
 445     M_FONTDATA->m_pointSize = pointSize;
 446
 447     RealizeResource();
 448 }
 449
 450 void wxFont::SetFamily(int family)
 451 {
 452     Unshare();
 453
 454     M_FONTDATA->m_family = family;
 455
 456     RealizeResource();
 457 }
 458
 459 void wxFont::SetStyle(int style)
 460 {
 461     Unshare();
 462
 463     M_FONTDATA->m_style = style;
 464
 465     RealizeResource();
 466 }
 467
 468 void wxFont::SetWeight(int weight)
 469 {
 470     Unshare();
 471
 472     M_FONTDATA->m_weight = weight;
 473
 474     RealizeResource();
 475 }
 476
 477 void wxFont::SetFaceName(const wxString& faceName)
 478 {
 479     Unshare();
 480
 481     M_FONTDATA->m_faceName = faceName;
 482
 483     RealizeResource();
 484 }
 485
 486 void wxFont::SetUnderlined(bool underlined)
 487 {
 488     Unshare();
 489
 490     M_FONTDATA->m_underlined = underlined;
 491
 492     RealizeResource();
 493 }
 494
 495 void wxFont::SetNoAntiAliasing( bool no )
 496 {
 497     Unshare();
 498
 499     M_FONTDATA->SetNoAntiAliasing( no );
 500
 501     RealizeResource();
 502 }
 503
 504 // ----------------------------------------------------------------------------
 505 // accessors
 506 // ----------------------------------------------------------------------------
 507
 508 // TODO: insert checks everywhere for M_FONTDATA == NULL!
 509
 510 int wxFont::GetPointSize() const
 511 {
 512     wxCHECK_MSG( M_FONTDATA != NULL , NULL, wxT("invalid font") );
 513     return M_FONTDATA->m_pointSize;
 514 }
 515
 516 int wxFont::GetFamily() const
 517 {
 518     wxCHECK_MSG( M_FONTDATA != NULL , NULL, wxT("invalid font") );
 519     return M_FONTDATA->m_family;
 520 }
 521
 522 int wxFont::GetStyle() const
 523 {
 524     wxCHECK_MSG( M_FONTDATA != NULL , NULL, wxT("invalid font") );
 525     return M_FONTDATA->m_style;
 526 }
 527
 528 int wxFont::GetWeight() const
 529 {
 530     wxCHECK_MSG( M_FONTDATA != NULL , NULL, wxT("invalid font") );
 531     return M_FONTDATA->m_weight;
 532 }
 533
 534 bool wxFont::GetUnderlined() const
 535 {
 536     wxCHECK_MSG( M_FONTDATA != NULL , NULL, wxT("invalid font") );
 537     return M_FONTDATA->m_underlined;
 538 }
 539
 540 wxString wxFont::GetFaceName() const
 541 {
 542     wxCHECK_MSG( M_FONTDATA != NULL , wxEmptyString , wxT("invalid font") );
 543     return M_FONTDATA->m_faceName;
 544 }
 545
 546 wxFontEncoding wxFont::GetEncoding() const
 547 {
 548     wxCHECK_MSG( M_FONTDATA != NULL , wxFONTENCODING_DEFAULT , wxT("invalid font") );
 549     return M_FONTDATA->m_encoding;
 550 }
 551
 552 bool wxFont::GetNoAntiAliasing() const
 553 {
 554     wxCHECK_MSG( M_FONTDATA != NULL , NULL, wxT("invalid font") );
 555     return M_FONTDATA->m_noAA;
 556 }
 557
 558 short wxFont::MacGetFontNum() const
 559 {
 560     wxCHECK_MSG( M_FONTDATA != NULL , NULL, wxT("invalid font") );
 561     return M_FONTDATA->m_macFontNum;
 562 }
 563
 564 short wxFont::MacGetFontSize() const
 565 {
 566     wxCHECK_MSG( M_FONTDATA != NULL , NULL, wxT("invalid font") );
 567     return M_FONTDATA->m_macFontSize;
 568 }
 569
 570 wxByte wxFont::MacGetFontStyle() const
 571 {
 572     wxCHECK_MSG( M_FONTDATA != NULL , NULL, wxT("invalid font") );
 573     return M_FONTDATA->m_macFontStyle;
 574 }
 575
 576 wxUint32 wxFont::MacGetATSUFontID() const
 577 {
 578     wxCHECK_MSG( M_FONTDATA != NULL , NULL, wxT("invalid font") );
 579     return M_FONTDATA->m_macATSUFontID;
 580 }
 581
 582 void* wxFont::MacGetATSUStyle() const
 583 {
 584     wxCHECK_MSG( M_FONTDATA != NULL , NULL, wxT("invalid font") );
 585     return M_FONTDATA->m_macATSUStyle;
 586 }
 587
 588 wxUint32 wxFont::MacGetATSUAdditionalQDStyles() const
 589 {
 590     wxCHECK_MSG( M_FONTDATA != NULL , NULL, wxT("invalid font") );
 591     return M_FONTDATA->m_macATSUAdditionalQDStyles;
 592 }
 593
 594 wxUint16 wxFont::MacGetThemeFontID() const
 595 {
 596     wxCHECK_MSG( M_FONTDATA != NULL , NULL, wxT("invalid font") );
 597     return M_FONTDATA->m_macThemeFontID;
 598 }
 599
 600
 601 const wxNativeFontInfo *wxFont::GetNativeFontInfo() const
 602 {
 603     wxCHECK_MSG( M_FONTDATA != NULL , NULL, wxT("invalid font") );
 604     wxCHECK_MSG( Ok(), NULL, wxT("invalid font") );
 605
 606     M_FONTDATA->m_info.InitFromFont(*this);
 607
 608     return &(M_FONTDATA->m_info);
 609 }
 610