src/common/fontcmn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        common/fontcmn.cpp
   3 // Purpose:     implementation of wxFontBase methods
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     20.09.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWindows team
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21 #pragma implementation "fontbase.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28 #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32 #include "wx/font.h"
  33 #include "wx/intl.h"
  34 #endif // WX_PRECOMP
  35
  36 #include "wx/gdicmn.h"
  37 #include "wx/fontutil.h" // for wxNativeFontInfo
  38 #include "wx/fontmap.h"
  39
  40 #include "wx/tokenzr.h"
  41
  42 // ============================================================================
  43 // implementation
  44 // ============================================================================
  45
  46 // ----------------------------------------------------------------------------
  47 // wxFontBase
  48 // ----------------------------------------------------------------------------
  49
  50 wxFontEncoding wxFontBase::ms_encodingDefault = wxFONTENCODING_SYSTEM;
  51
  52 /* static */
  53 wxFont *wxFontBase::New(int size,
  54                         int family,
  55                         int style,
  56                         int weight,
  57                         bool underlined,
  58                         const wxString& face,
  59                         wxFontEncoding encoding)
  60 {
  61     return new wxFont(size, family, style, weight, underlined, face, encoding);
  62 }
  63
  64 /* static */
  65 wxFont *wxFontBase::New(const wxNativeFontInfo& info)
  66 {
  67     return new wxFont(info);
  68 }
  69
  70 /* static */
  71 wxFont *wxFontBase::New(const wxString& strNativeFontDesc)
  72 {
  73     wxNativeFontInfo fontInfo;
  74     if ( !fontInfo.FromString(strNativeFontDesc) )
  75         return new wxFont(*wxNORMAL_FONT);
  76
  77     return New(fontInfo);
  78 }
  79
  80 wxNativeFontInfo *wxFontBase::GetNativeFontInfo() const
  81 {
  82 #ifdef wxNO_NATIVE_FONTINFO
  83     wxNativeFontInfo *fontInfo = new wxNativeFontInfo();
  84
  85     fontInfo->SetPointSize(GetPointSize());
  86     fontInfo->SetFamily((wxFontFamily)GetFamily());
  87     fontInfo->SetStyle((wxFontStyle)GetStyle());
  88     fontInfo->SetWeight((wxFontWeight)GetWeight());
  89     fontInfo->SetUnderlined(GetUnderlined());
  90     fontInfo->SetFaceName(GetFaceName());
  91     fontInfo->SetEncoding(GetEncoding());
  92
  93     return fontInfo;
  94 #else
  95     return (wxNativeFontInfo *)NULL;
  96 #endif
  97 }
  98
  99 void wxFontBase::SetNativeFontInfo(const wxNativeFontInfo& info)
 100 {
 101 #ifdef wxNO_NATIVE_FONTINFO
 102     SetPointSize(info.pointSize);
 103     SetFamily(info.family);
 104     SetStyle(info.style);
 105     SetWeight(info.weight);
 106     SetUnderlined(info.underlined);
 107     SetFaceName(info.faceName);
 108     SetEncoding(info.encoding);
 109 #else
 110     (void)info;
 111 #endif
 112 }
 113
 114 wxString wxFontBase::GetNativeFontInfoDesc() const
 115 {
 116     wxString fontDesc;
 117     wxNativeFontInfo *fontInfo = GetNativeFontInfo();
 118     if ( fontInfo )
 119     {
 120         fontDesc = fontInfo->ToString();
 121         delete fontInfo;
 122     }
 123
 124     return fontDesc;
 125 }
 126
 127 wxString wxFontBase::GetNativeFontInfoUserDesc() const
 128 {
 129     wxString fontDesc;
 130     wxNativeFontInfo *fontInfo = GetNativeFontInfo();
 131     if ( fontInfo )
 132     {
 133         fontDesc = fontInfo->ToUserString();
 134         delete fontInfo;
 135     }
 136
 137     return fontDesc;
 138 }
 139
 140 void wxFontBase::SetNativeFontInfo(const wxString& info)
 141 {
 142     wxNativeFontInfo fontInfo;
 143     if ( !info.empty() && fontInfo.FromString(info) )
 144     {
 145         SetNativeFontInfo(fontInfo);
 146     }
 147 }
 148
 149 void wxFontBase::SetNativeFontInfoUserDesc(const wxString& info)
 150 {
 151     wxNativeFontInfo fontInfo;
 152     if ( !info.empty() && fontInfo.FromUserString(info) )
 153     {
 154         SetNativeFontInfo(fontInfo);
 155     }
 156 }
 157
 158 wxFont& wxFont::operator=(const wxFont& font)
 159 {
 160     if ( this != &font )
 161         Ref(font);
 162
 163     return (wxFont &)*this;
 164 }
 165
 166 bool wxFontBase::operator==(const wxFont& font) const
 167 {
 168     // either it is the same font, i.e. they share the same common data or they
 169     // have different ref datas but still describe the same font
 170     return GetFontData() == font.GetFontData() ||
 171            (
 172             Ok() == font.Ok() &&
 173             GetPointSize() == font.GetPointSize() &&
 174             GetFamily() == font.GetFamily() &&
 175             GetStyle() == font.GetStyle() &&
 176             GetWeight() == font.GetWeight() &&
 177             GetUnderlined() == font.GetUnderlined() &&
 178             GetFaceName() == font.GetFaceName() &&
 179             GetEncoding() == font.GetEncoding()
 180            );
 181 }
 182
 183 bool wxFontBase::operator!=(const wxFont& font) const
 184 {
 185     return !(*this == font);
 186 }
 187
 188 wxString wxFontBase::GetFamilyString() const
 189 {
 190     wxCHECK_MSG( Ok(), wxT("wxDEFAULT"), wxT("invalid font") );
 191
 192     switch ( GetFamily() )
 193     {
 194         case wxDECORATIVE:   return wxT("wxDECORATIVE");
 195         case wxROMAN:        return wxT("wxROMAN");
 196         case wxSCRIPT:       return wxT("wxSCRIPT");
 197         case wxSWISS:        return wxT("wxSWISS");
 198         case wxMODERN:       return wxT("wxMODERN");
 199         case wxTELETYPE:     return wxT("wxTELETYPE");
 200         default:             return wxT("wxDEFAULT");
 201     }
 202 }
 203
 204 wxString wxFontBase::GetStyleString() const
 205 {
 206     wxCHECK_MSG( Ok(), wxT("wxDEFAULT"), wxT("invalid font") );
 207
 208     switch ( GetStyle() )
 209     {
 210         case wxNORMAL:   return wxT("wxNORMAL");
 211         case wxSLANT:    return wxT("wxSLANT");
 212         case wxITALIC:   return wxT("wxITALIC");
 213         default:         return wxT("wxDEFAULT");
 214     }
 215 }
 216
 217 wxString wxFontBase::GetWeightString() const
 218 {
 219     wxCHECK_MSG( Ok(), wxT("wxDEFAULT"), wxT("invalid font") );
 220
 221     switch ( GetWeight() )
 222     {
 223         case wxNORMAL:   return wxT("wxNORMAL");
 224         case wxBOLD:     return wxT("wxBOLD");
 225         case wxLIGHT:    return wxT("wxLIGHT");
 226         default:         return wxT("wxDEFAULT");
 227     }
 228 }
 229
 230 // ----------------------------------------------------------------------------
 231 // wxNativeFontInfo
 232 // ----------------------------------------------------------------------------
 233
 234 #ifdef wxNO_NATIVE_FONTINFO
 235
 236 // These are the generic forms of FromString()/ToString.
 237 //
 238 // convert to/from the string representation: format is
 239 //      version;pointsize;family;style;weight;underlined;facename;encoding
 240
 241 bool wxNativeFontInfo::FromString(const wxString& s)
 242 {
 243     long l;
 244
 245     wxStringTokenizer tokenizer(s, _T(";"));
 246
 247     wxString token = tokenizer.GetNextToken();
 248     //
 249     //  Ignore the version for now
 250     //
 251
 252     token = tokenizer.GetNextToken();
 253     if ( !token.ToLong(&l) )
 254         return FALSE;
 255     pointSize = (int)l;
 256
 257     token = tokenizer.GetNextToken();
 258     if ( !token.ToLong(&l) )
 259         return FALSE;
 260     family = (wxFontFamily)l;
 261
 262     token = tokenizer.GetNextToken();
 263     if ( !token.ToLong(&l) )
 264         return FALSE;
 265     style = (wxFontStyle)l;
 266
 267     token = tokenizer.GetNextToken();
 268     if ( !token.ToLong(&l) )
 269         return FALSE;
 270     weight = (wxFontWeight)l;
 271
 272     token = tokenizer.GetNextToken();
 273     if ( !token.ToLong(&l) )
 274         return FALSE;
 275     underlined = l != 0;
 276
 277     faceName = tokenizer.GetNextToken();
 278     if( !faceName )
 279         return FALSE;
 280
 281     token = tokenizer.GetNextToken();
 282     if ( !token.ToLong(&l) )
 283         return FALSE;
 284     encoding = (wxFontEncoding)l;
 285
 286     return TRUE;
 287 }
 288
 289 wxString wxNativeFontInfo::ToString() const
 290 {
 291     wxString s;
 292
 293     s.Printf(_T("%d;%d;%d;%d;%d;%d;%s;%d"),
 294              0,                                 // version
 295              pointSize,
 296              family,
 297              (int)style,
 298              (int)weight,
 299              underlined,
 300              faceName.GetData(),
 301              (int)encoding);
 302
 303     return s;
 304 }
 305
 306 void wxNativeFontInfo::Init()
 307 {
 308     pointSize = wxNORMAL_FONT->GetPointSize();
 309     family = wxFONTFAMILY_DEFAULT;
 310     style = wxFONTSTYLE_NORMAL;
 311     weight = wxFONTWEIGHT_NORMAL;
 312     underlined = FALSE;
 313     faceName.clear();
 314     encoding = wxFONTENCODING_DEFAULT;
 315 }
 316
 317 int wxNativeFontInfo::GetPointSize() const
 318 {
 319     return pointSize;
 320 }
 321
 322 wxFontStyle wxNativeFontInfo::GetStyle() const
 323 {
 324     return style;
 325 }
 326
 327 wxFontWeight wxNativeFontInfo::GetWeight() const
 328 {
 329     return weight;
 330 }
 331
 332 bool wxNativeFontInfo::GetUnderlined() const
 333 {
 334     return underlined;
 335 }
 336
 337 wxString wxNativeFontInfo::GetFaceName() const
 338 {
 339     return faceName;
 340 }
 341
 342 wxFontFamily wxNativeFontInfo::GetFamily() const
 343 {
 344     return family;
 345 }
 346
 347 wxFontEncoding wxNativeFontInfo::GetEncoding() const
 348 {
 349     return encoding;
 350 }
 351
 352 void wxNativeFontInfo::SetPointSize(int pointsize)
 353 {
 354     pointSize = pointsize;
 355 }
 356
 357 void wxNativeFontInfo::SetStyle(wxFontStyle style_)
 358 {
 359     style = style_;
 360 }
 361
 362 void wxNativeFontInfo::SetWeight(wxFontWeight weight_)
 363 {
 364     weight = weight_;
 365 }
 366
 367 void wxNativeFontInfo::SetUnderlined(bool underlined_)
 368 {
 369     underlined = underlined_;
 370 }
 371
 372 void wxNativeFontInfo::SetFaceName(wxString facename_)
 373 {
 374     faceName = facename_;
 375 }
 376
 377 void wxNativeFontInfo::SetFamily(wxFontFamily family_)
 378 {
 379     family = family_;
 380 }
 381
 382 void wxNativeFontInfo::SetEncoding(wxFontEncoding encoding_)
 383 {
 384     encoding = encoding_;
 385 }
 386
 387 #endif // generic wxNativeFontInfo implementation
 388
 389 // conversion to/from user-readable string: this is used in the generic
 390 // versions and under MSW as well because there is no standard font description
 391 // format there anyhow (but there is a well-defined standard for X11 fonts used
 392 // by wxGTK and wxMotif)
 393
 394 #if defined(wxNO_NATIVE_FONTINFO) || defined(__WXMSW__)
 395
 396 wxString wxNativeFontInfo::ToUserString() const
 397 {
 398     wxString desc;
 399
 400     // first put the adjectives, if any - this is English-centric, of course,
 401     // but what else can we do?
 402     if ( GetUnderlined() )
 403     {
 404         desc << _("underlined ");
 405     }
 406
 407     switch ( GetWeight() )
 408     {
 409         default:
 410             wxFAIL_MSG( _T("unknown font weight") );
 411             // fall through
 412
 413         case wxFONTWEIGHT_NORMAL:
 414             break;
 415
 416         case wxFONTWEIGHT_LIGHT:
 417             desc << _("light ");
 418             break;
 419
 420         case wxFONTWEIGHT_BOLD:
 421             desc << _("bold ");
 422             break;
 423     }
 424
 425     switch ( GetStyle() )
 426     {
 427         default:
 428             wxFAIL_MSG( _T("unknown font style") );
 429             // fall through
 430
 431         case wxFONTSTYLE_NORMAL:
 432             break;
 433
 434             // we don't distinguish between the two for now anyhow...
 435         case wxFONTSTYLE_ITALIC:
 436         case wxFONTSTYLE_SLANT:
 437             desc << _("italic");
 438             break;
 439     }
 440
 441     wxString face = GetFaceName();
 442     if ( !face.empty() )
 443     {
 444         desc << _T(' ') << face;
 445     }
 446
 447     int size = GetPointSize();
 448     if ( size != wxNORMAL_FONT->GetPointSize() )
 449     {
 450         desc << _T(' ') << size;
 451     }
 452
 453     wxFontEncoding enc = GetEncoding();
 454     if ( enc != wxFONTENCODING_DEFAULT && enc != wxFONTENCODING_SYSTEM )
 455     {
 456         desc << _T(' ') << wxTheFontMapper->GetEncodingName(enc);
 457     }
 458
 459     return desc;
 460 }
 461
 462 bool wxNativeFontInfo::FromUserString(const wxString& s)
 463 {
 464     // reset to the default state
 465     Init();
 466
 467     // parse a more or less free form string
 468     //
 469     // TODO: we should handle at least the quoted facenames
 470     wxStringTokenizer tokenizer(s, _T(";, "), wxTOKEN_STRTOK);
 471
 472     wxString face;
 473     unsigned long size;
 474     wxFontEncoding encoding;
 475
 476     while ( tokenizer.HasMoreTokens() )
 477     {
 478         wxString token = tokenizer.GetNextToken();
 479
 480         // normalize it
 481         token.Trim(TRUE).Trim(FALSE).MakeLower();
 482
 483         // look for the known tokens
 484         if ( token == _T("underlined") || token == _("underlined") )
 485         {
 486             SetUnderlined(TRUE);
 487         }
 488         else if ( token == _T("light") || token == _("light") )
 489         {
 490             SetWeight(wxFONTWEIGHT_LIGHT);
 491         }
 492         else if ( token == _T("bold") || token == _("bold") )
 493         {
 494             SetWeight(wxFONTWEIGHT_BOLD);
 495         }
 496         else if ( token == _T("italic") || token == _("italic") )
 497         {
 498             SetStyle(wxFONTSTYLE_ITALIC);
 499         }
 500         else if ( token.ToULong(&size) )
 501         {
 502             SetPointSize(size);
 503         }
 504         else if ( (encoding = wxTheFontMapper->CharsetToEncoding(token, FALSE))
 505                     != wxFONTENCODING_DEFAULT )
 506         {
 507             SetEncoding(encoding);
 508         }
 509         else // assume it is the face name
 510         {
 511             if ( !face.empty() )
 512             {
 513                 face += _T(' ');
 514             }
 515
 516             face += token;
 517
 518             // skip the code which resets face below
 519             continue;
 520         }
 521
 522         // if we had had the facename, we shouldn't continue appending tokens
 523         // to it (i.e. "foo bold bar" shouldn't result in the facename "foo
 524         // bar")
 525         if ( !face.empty() )
 526         {
 527             SetFaceName(face);
 528             face.clear();
 529         }
 530     }
 531
 532     // we might not have flushed it inside the loop
 533     if ( !face.empty() )
 534     {
 535         SetFaceName(face);
 536     }
 537
 538     return TRUE;
 539 }
 540
 541 #endif // generic or wxMSW
 542