| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/msw/font.cpp |
| 3 | // Purpose: wxFont class |
| 4 | // Author: Julian Smart |
| 5 | // Modified by: |
| 6 | // Created: 01/02/97 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) wxWidgets team |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ============================================================================ |
| 13 | // declarations |
| 14 | // ============================================================================ |
| 15 | |
| 16 | // ---------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // ---------------------------------------------------------------------------- |
| 19 | |
| 20 | // For compilers that support precompilation, includes "wx.h". |
| 21 | #include "wx/wxprec.h" |
| 22 | |
| 23 | #ifdef __BORLANDC__ |
| 24 | #pragma hdrstop |
| 25 | #endif |
| 26 | |
| 27 | #include "wx/font.h" |
| 28 | |
| 29 | #ifndef WX_PRECOMP |
| 30 | #include "wx/list.h" |
| 31 | #include "wx/utils.h" |
| 32 | #include "wx/app.h" |
| 33 | #include "wx/log.h" |
| 34 | #include "wx/msw/private.h" |
| 35 | #endif // WX_PRECOMP |
| 36 | |
| 37 | #include "wx/encinfo.h" |
| 38 | #include "wx/fontutil.h" |
| 39 | #include "wx/fontmap.h" |
| 40 | |
| 41 | #ifndef __WXWINCE__ |
| 42 | #include "wx/sysopt.h" |
| 43 | #endif |
| 44 | |
| 45 | #include "wx/scopeguard.h" |
| 46 | #include "wx/tokenzr.h" |
| 47 | |
| 48 | // ---------------------------------------------------------------------------- |
| 49 | // constants |
| 50 | // ---------------------------------------------------------------------------- |
| 51 | |
| 52 | // the mask used to extract the pitch from LOGFONT::lfPitchAndFamily field |
| 53 | static const int PITCH_MASK = FIXED_PITCH | VARIABLE_PITCH; |
| 54 | |
| 55 | // ---------------------------------------------------------------------------- |
| 56 | // wxFontRefData - the internal description of the font |
| 57 | // ---------------------------------------------------------------------------- |
| 58 | |
| 59 | class WXDLLEXPORT wxFontRefData: public wxGDIRefData |
| 60 | { |
| 61 | public: |
| 62 | // constructors |
| 63 | wxFontRefData() |
| 64 | { |
| 65 | Init(-1, wxSize(0,0), false, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, |
| 66 | wxFONTWEIGHT_NORMAL, false, wxEmptyString, |
| 67 | wxFONTENCODING_DEFAULT); |
| 68 | } |
| 69 | |
| 70 | wxFontRefData(int size, |
| 71 | const wxSize& pixelSize, |
| 72 | bool sizeUsingPixels, |
| 73 | wxFontFamily family, |
| 74 | wxFontStyle style, |
| 75 | wxFontWeight weight, |
| 76 | bool underlined, |
| 77 | const wxString& faceName, |
| 78 | wxFontEncoding encoding) |
| 79 | { |
| 80 | Init(size, pixelSize, sizeUsingPixels, family, style, weight, |
| 81 | underlined, faceName, encoding); |
| 82 | } |
| 83 | |
| 84 | wxFontRefData(const wxNativeFontInfo& info, WXHFONT hFont = 0) |
| 85 | { |
| 86 | Init(info, hFont); |
| 87 | } |
| 88 | |
| 89 | wxFontRefData(const wxFontRefData& data) : wxGDIRefData() |
| 90 | { |
| 91 | Init(data.m_nativeFontInfo); |
| 92 | } |
| 93 | |
| 94 | virtual ~wxFontRefData(); |
| 95 | |
| 96 | // operations |
| 97 | bool Alloc(); |
| 98 | |
| 99 | void Free(); |
| 100 | |
| 101 | // all wxFont accessors |
| 102 | int GetPointSize() const |
| 103 | { |
| 104 | return m_nativeFontInfo.GetPointSize(); |
| 105 | } |
| 106 | |
| 107 | wxSize GetPixelSize() const |
| 108 | { |
| 109 | return m_nativeFontInfo.GetPixelSize(); |
| 110 | } |
| 111 | |
| 112 | bool IsUsingSizeInPixels() const |
| 113 | { |
| 114 | return m_sizeUsingPixels; |
| 115 | } |
| 116 | |
| 117 | wxFontFamily GetFamily() const |
| 118 | { |
| 119 | return m_nativeFontInfo.GetFamily(); |
| 120 | } |
| 121 | |
| 122 | wxFontStyle GetStyle() const |
| 123 | { |
| 124 | return m_nativeFontInfo.GetStyle(); |
| 125 | } |
| 126 | |
| 127 | wxFontWeight GetWeight() const |
| 128 | { |
| 129 | return m_nativeFontInfo.GetWeight(); |
| 130 | } |
| 131 | |
| 132 | bool GetUnderlined() const |
| 133 | { |
| 134 | return m_nativeFontInfo.GetUnderlined(); |
| 135 | } |
| 136 | |
| 137 | wxString GetFaceName() const |
| 138 | { |
| 139 | wxString facename = m_nativeFontInfo.GetFaceName(); |
| 140 | if ( facename.empty() ) |
| 141 | { |
| 142 | facename = GetMSWFaceName(); |
| 143 | if ( !facename.empty() ) |
| 144 | { |
| 145 | // cache the face name, it shouldn't change unless the family |
| 146 | // does and wxNativeFontInfo::SetFamily() resets the face name |
| 147 | const_cast<wxFontRefData *>(this)->SetFaceName(facename); |
| 148 | } |
| 149 | } |
| 150 | |
| 151 | return facename; |
| 152 | } |
| 153 | |
| 154 | wxFontEncoding GetEncoding() const |
| 155 | { |
| 156 | return m_nativeFontInfo.GetEncoding(); |
| 157 | } |
| 158 | |
| 159 | WXHFONT GetHFONT() const |
| 160 | { |
| 161 | AllocIfNeeded(); |
| 162 | |
| 163 | return (WXHFONT)m_hFont; |
| 164 | } |
| 165 | |
| 166 | bool HasHFONT() const |
| 167 | { |
| 168 | return m_hFont != 0; |
| 169 | } |
| 170 | |
| 171 | // ... and setters: notice that all of them invalidate the currently |
| 172 | // allocated HFONT, if any, so that the next call to GetHFONT() recreates a |
| 173 | // new one |
| 174 | void SetPointSize(int pointSize) |
| 175 | { |
| 176 | Free(); |
| 177 | |
| 178 | m_nativeFontInfo.SetPointSize(pointSize); |
| 179 | m_sizeUsingPixels = false; |
| 180 | } |
| 181 | |
| 182 | void SetPixelSize(const wxSize& pixelSize) |
| 183 | { |
| 184 | wxCHECK_RET( pixelSize.GetWidth() >= 0, "negative font width" ); |
| 185 | wxCHECK_RET( pixelSize.GetHeight() != 0, "zero font height" ); |
| 186 | |
| 187 | Free(); |
| 188 | |
| 189 | m_nativeFontInfo.SetPixelSize(pixelSize); |
| 190 | m_sizeUsingPixels = true; |
| 191 | } |
| 192 | |
| 193 | void SetFamily(wxFontFamily family) |
| 194 | { |
| 195 | Free(); |
| 196 | |
| 197 | m_nativeFontInfo.SetFamily(family); |
| 198 | } |
| 199 | |
| 200 | void SetStyle(wxFontStyle style) |
| 201 | { |
| 202 | Free(); |
| 203 | |
| 204 | m_nativeFontInfo.SetStyle(style); |
| 205 | } |
| 206 | |
| 207 | void SetWeight(wxFontWeight weight) |
| 208 | { |
| 209 | Free(); |
| 210 | |
| 211 | m_nativeFontInfo.SetWeight(weight); |
| 212 | } |
| 213 | |
| 214 | bool SetFaceName(const wxString& faceName) |
| 215 | { |
| 216 | Free(); |
| 217 | |
| 218 | return m_nativeFontInfo.SetFaceName(faceName); |
| 219 | } |
| 220 | |
| 221 | void SetUnderlined(bool underlined) |
| 222 | { |
| 223 | Free(); |
| 224 | |
| 225 | m_nativeFontInfo.SetUnderlined(underlined); |
| 226 | } |
| 227 | |
| 228 | void SetEncoding(wxFontEncoding encoding) |
| 229 | { |
| 230 | Free(); |
| 231 | |
| 232 | m_nativeFontInfo.SetEncoding(encoding); |
| 233 | } |
| 234 | |
| 235 | const wxNativeFontInfo& GetNativeFontInfo() const |
| 236 | { |
| 237 | // we need to create the font now to get the corresponding LOGFONT if |
| 238 | // it hadn't been done yet |
| 239 | AllocIfNeeded(); |
| 240 | |
| 241 | // ensure that we have a valid face name in our font information: |
| 242 | // GetFaceName() will try to retrieve it from our HFONT and save it if |
| 243 | // it was successful |
| 244 | (void)GetFaceName(); |
| 245 | |
| 246 | return m_nativeFontInfo; |
| 247 | } |
| 248 | |
| 249 | void SetNativeFontInfo(const wxNativeFontInfo& nativeFontInfo) |
| 250 | { |
| 251 | Free(); |
| 252 | |
| 253 | m_nativeFontInfo = nativeFontInfo; |
| 254 | } |
| 255 | |
| 256 | protected: |
| 257 | // common part of all ctors |
| 258 | void Init(int size, |
| 259 | const wxSize& pixelSize, |
| 260 | bool sizeUsingPixels, |
| 261 | wxFontFamily family, |
| 262 | wxFontStyle style, |
| 263 | wxFontWeight weight, |
| 264 | bool underlined, |
| 265 | const wxString& faceName, |
| 266 | wxFontEncoding encoding); |
| 267 | |
| 268 | void Init(const wxNativeFontInfo& info, WXHFONT hFont = 0); |
| 269 | |
| 270 | void AllocIfNeeded() const |
| 271 | { |
| 272 | if ( !m_hFont ) |
| 273 | const_cast<wxFontRefData *>(this)->Alloc(); |
| 274 | } |
| 275 | |
| 276 | // retrieve the face name really being used by the font: this is used to |
| 277 | // get the face name selected by the system when we don't specify it (but |
| 278 | // use just the family for example) |
| 279 | wxString GetMSWFaceName() const |
| 280 | { |
| 281 | ScreenHDC hdc; |
| 282 | SelectInHDC selectFont(hdc, m_hFont); |
| 283 | |
| 284 | UINT otmSize = GetOutlineTextMetrics(hdc, 0, NULL); |
| 285 | if ( !otmSize ) |
| 286 | { |
| 287 | wxLogLastError("GetOutlineTextMetrics(NULL)"); |
| 288 | return wxString(); |
| 289 | } |
| 290 | |
| 291 | OUTLINETEXTMETRIC * const |
| 292 | otm = static_cast<OUTLINETEXTMETRIC *>(malloc(otmSize)); |
| 293 | wxON_BLOCK_EXIT1( free, otm ); |
| 294 | |
| 295 | otm->otmSize = otmSize; |
| 296 | if ( !GetOutlineTextMetrics(hdc, otmSize, otm) ) |
| 297 | { |
| 298 | wxLogLastError("GetOutlineTextMetrics()"); |
| 299 | return wxString(); |
| 300 | } |
| 301 | |
| 302 | // in spite of its type, the otmpFamilyName field of OUTLINETEXTMETRIC |
| 303 | // gives an offset in _bytes_ of the face (not family!) name from the |
| 304 | // struct start while the name itself is an array of TCHARs |
| 305 | // |
| 306 | // FWIW otmpFaceName contains the same thing as otmpFamilyName followed |
| 307 | // by a possible " Italic" or " Bold" or something else suffix |
| 308 | return reinterpret_cast<wxChar *>(otm) + |
| 309 | wxPtrToUInt(otm->otmpFamilyName)/sizeof(wxChar); |
| 310 | } |
| 311 | |
| 312 | // are we using m_nativeFontInfo.lf.lfHeight for point size or pixel size? |
| 313 | bool m_sizeUsingPixels; |
| 314 | |
| 315 | // Windows font handle, created on demand in GetHFONT() |
| 316 | HFONT m_hFont; |
| 317 | |
| 318 | // Native font info |
| 319 | wxNativeFontInfo m_nativeFontInfo; |
| 320 | }; |
| 321 | |
| 322 | #define M_FONTDATA ((wxFontRefData*)m_refData) |
| 323 | |
| 324 | // ============================================================================ |
| 325 | // implementation |
| 326 | // ============================================================================ |
| 327 | |
| 328 | // ---------------------------------------------------------------------------- |
| 329 | // wxFontRefData |
| 330 | // ---------------------------------------------------------------------------- |
| 331 | |
| 332 | void wxFontRefData::Init(int pointSize, |
| 333 | const wxSize& pixelSize, |
| 334 | bool sizeUsingPixels, |
| 335 | wxFontFamily family, |
| 336 | wxFontStyle style, |
| 337 | wxFontWeight weight, |
| 338 | bool underlined, |
| 339 | const wxString& faceName, |
| 340 | wxFontEncoding encoding) |
| 341 | { |
| 342 | m_hFont = NULL; |
| 343 | |
| 344 | m_sizeUsingPixels = sizeUsingPixels; |
| 345 | if ( m_sizeUsingPixels ) |
| 346 | SetPixelSize(pixelSize); |
| 347 | else |
| 348 | SetPointSize(pointSize); |
| 349 | |
| 350 | SetStyle(style); |
| 351 | SetWeight(weight); |
| 352 | SetUnderlined(underlined); |
| 353 | |
| 354 | // set the family/facename |
| 355 | SetFamily(family); |
| 356 | if ( !faceName.empty() ) |
| 357 | SetFaceName(faceName); |
| 358 | |
| 359 | // deal with encoding now (it may override the font family and facename |
| 360 | // so do it after setting them) |
| 361 | SetEncoding(encoding); |
| 362 | } |
| 363 | |
| 364 | void wxFontRefData::Init(const wxNativeFontInfo& info, WXHFONT hFont) |
| 365 | { |
| 366 | // hFont may be zero, or it be passed in case we really want to |
| 367 | // use the exact font created in the underlying system |
| 368 | // (for example where we can't guarantee conversion from HFONT |
| 369 | // to LOGFONT back to HFONT) |
| 370 | m_hFont = (HFONT)hFont; |
| 371 | m_nativeFontInfo = info; |
| 372 | |
| 373 | // TODO: m_sizeUsingPixels? |
| 374 | } |
| 375 | |
| 376 | wxFontRefData::~wxFontRefData() |
| 377 | { |
| 378 | Free(); |
| 379 | } |
| 380 | |
| 381 | bool wxFontRefData::Alloc() |
| 382 | { |
| 383 | m_hFont = ::CreateFontIndirect(&m_nativeFontInfo.lf); |
| 384 | if ( !m_hFont ) |
| 385 | { |
| 386 | wxLogLastError(wxT("CreateFont")); |
| 387 | return false; |
| 388 | } |
| 389 | |
| 390 | return true; |
| 391 | } |
| 392 | |
| 393 | void wxFontRefData::Free() |
| 394 | { |
| 395 | if ( m_hFont ) |
| 396 | { |
| 397 | if ( !::DeleteObject(m_hFont) ) |
| 398 | { |
| 399 | wxLogLastError(wxT("DeleteObject(font)")); |
| 400 | } |
| 401 | |
| 402 | m_hFont = 0; |
| 403 | } |
| 404 | } |
| 405 | |
| 406 | // ---------------------------------------------------------------------------- |
| 407 | // wxNativeFontInfo |
| 408 | // ---------------------------------------------------------------------------- |
| 409 | |
| 410 | void wxNativeFontInfo::Init() |
| 411 | { |
| 412 | wxZeroMemory(lf); |
| 413 | |
| 414 | // we get better font quality if we use PROOF_QUALITY instead of |
| 415 | // DEFAULT_QUALITY but some fonts (e.g. "Terminal 6pt") are not available |
| 416 | // then so we allow to set a global option to choose between quality and |
| 417 | // wider font selection |
| 418 | #ifdef __WXWINCE__ |
| 419 | lf.lfQuality = CLEARTYPE_QUALITY; |
| 420 | #else |
| 421 | lf.lfQuality = wxSystemOptions::GetOptionInt("msw.font.no-proof-quality") |
| 422 | ? DEFAULT_QUALITY |
| 423 | : PROOF_QUALITY; |
| 424 | #endif |
| 425 | } |
| 426 | |
| 427 | int wxNativeFontInfo::GetPointSize() const |
| 428 | { |
| 429 | // FIXME: using the screen here results in incorrect font size calculation |
| 430 | // for printing! |
| 431 | const int ppInch = ::GetDeviceCaps(ScreenHDC(), LOGPIXELSY); |
| 432 | |
| 433 | // BC++ 2007 doesn't provide abs(long) overload, hence the cast |
| 434 | return (int) (((72.0*abs((int)lf.lfHeight)) / (double) ppInch) + 0.5); |
| 435 | } |
| 436 | |
| 437 | wxSize wxNativeFontInfo::GetPixelSize() const |
| 438 | { |
| 439 | wxSize ret; |
| 440 | ret.SetHeight(abs((int)lf.lfHeight)); |
| 441 | ret.SetWidth(lf.lfWidth); |
| 442 | return ret; |
| 443 | } |
| 444 | |
| 445 | wxFontStyle wxNativeFontInfo::GetStyle() const |
| 446 | { |
| 447 | return lf.lfItalic ? wxFONTSTYLE_ITALIC : wxFONTSTYLE_NORMAL; |
| 448 | } |
| 449 | |
| 450 | wxFontWeight wxNativeFontInfo::GetWeight() const |
| 451 | { |
| 452 | if ( lf.lfWeight <= 300 ) |
| 453 | return wxFONTWEIGHT_LIGHT; |
| 454 | |
| 455 | if ( lf.lfWeight >= 600 ) |
| 456 | return wxFONTWEIGHT_BOLD; |
| 457 | |
| 458 | return wxFONTWEIGHT_NORMAL; |
| 459 | } |
| 460 | |
| 461 | bool wxNativeFontInfo::GetUnderlined() const |
| 462 | { |
| 463 | return lf.lfUnderline != 0; |
| 464 | } |
| 465 | |
| 466 | wxString wxNativeFontInfo::GetFaceName() const |
| 467 | { |
| 468 | return lf.lfFaceName; |
| 469 | } |
| 470 | |
| 471 | wxFontFamily wxNativeFontInfo::GetFamily() const |
| 472 | { |
| 473 | wxFontFamily family; |
| 474 | |
| 475 | // extract family from pitch-and-family |
| 476 | switch ( lf.lfPitchAndFamily & ~PITCH_MASK ) |
| 477 | { |
| 478 | case 0: |
| 479 | family = wxFONTFAMILY_UNKNOWN; |
| 480 | break; |
| 481 | |
| 482 | case FF_ROMAN: |
| 483 | family = wxFONTFAMILY_ROMAN; |
| 484 | break; |
| 485 | |
| 486 | case FF_SWISS: |
| 487 | family = wxFONTFAMILY_SWISS; |
| 488 | break; |
| 489 | |
| 490 | case FF_SCRIPT: |
| 491 | family = wxFONTFAMILY_SCRIPT; |
| 492 | break; |
| 493 | |
| 494 | case FF_MODERN: |
| 495 | family = wxFONTFAMILY_MODERN; |
| 496 | break; |
| 497 | |
| 498 | case FF_DECORATIVE: |
| 499 | family = wxFONTFAMILY_DECORATIVE; |
| 500 | break; |
| 501 | |
| 502 | default: |
| 503 | wxFAIL_MSG( "unknown LOGFONT::lfFamily value" ); |
| 504 | family = wxFONTFAMILY_UNKNOWN; |
| 505 | // just to avoid a warning |
| 506 | } |
| 507 | |
| 508 | return family; |
| 509 | } |
| 510 | |
| 511 | wxFontEncoding wxNativeFontInfo::GetEncoding() const |
| 512 | { |
| 513 | return wxGetFontEncFromCharSet(lf.lfCharSet); |
| 514 | } |
| 515 | |
| 516 | void wxNativeFontInfo::SetPointSize(int pointsize) |
| 517 | { |
| 518 | // FIXME: using the screen here results in incorrect font size calculation |
| 519 | // for printing! |
| 520 | const int ppInch = ::GetDeviceCaps(ScreenHDC(), LOGPIXELSY); |
| 521 | |
| 522 | lf.lfHeight = -(int)((pointsize*((double)ppInch)/72.0) + 0.5); |
| 523 | } |
| 524 | |
| 525 | void wxNativeFontInfo::SetPixelSize(const wxSize& pixelSize) |
| 526 | { |
| 527 | // MSW accepts both positive and negative heights here but they mean |
| 528 | // different things: positive specifies the cell height while negative |
| 529 | // specifies the character height. We used to just pass the value to MSW |
| 530 | // unchanged but changed the behaviour for positive values in 2.9.1 to |
| 531 | // match other ports and, more importantly, the expected behaviour. So now |
| 532 | // passing the negative height doesn't make sense at all any more but we |
| 533 | // still accept it for compatibility with the existing code which worked |
| 534 | // around the wrong interpretation of the height argument in older wxMSW |
| 535 | // versions by passing a negative value explicitly itself. |
| 536 | lf.lfHeight = -abs(pixelSize.GetHeight()); |
| 537 | lf.lfWidth = pixelSize.GetWidth(); |
| 538 | } |
| 539 | |
| 540 | void wxNativeFontInfo::SetStyle(wxFontStyle style) |
| 541 | { |
| 542 | switch ( style ) |
| 543 | { |
| 544 | default: |
| 545 | wxFAIL_MSG( "unknown font style" ); |
| 546 | // fall through |
| 547 | |
| 548 | case wxFONTSTYLE_NORMAL: |
| 549 | lf.lfItalic = FALSE; |
| 550 | break; |
| 551 | |
| 552 | case wxFONTSTYLE_ITALIC: |
| 553 | case wxFONTSTYLE_SLANT: |
| 554 | lf.lfItalic = TRUE; |
| 555 | break; |
| 556 | } |
| 557 | } |
| 558 | |
| 559 | void wxNativeFontInfo::SetWeight(wxFontWeight weight) |
| 560 | { |
| 561 | switch ( weight ) |
| 562 | { |
| 563 | default: |
| 564 | wxFAIL_MSG( "unknown font weight" ); |
| 565 | // fall through |
| 566 | |
| 567 | case wxFONTWEIGHT_NORMAL: |
| 568 | lf.lfWeight = FW_NORMAL; |
| 569 | break; |
| 570 | |
| 571 | case wxFONTWEIGHT_LIGHT: |
| 572 | lf.lfWeight = FW_LIGHT; |
| 573 | break; |
| 574 | |
| 575 | case wxFONTWEIGHT_BOLD: |
| 576 | lf.lfWeight = FW_BOLD; |
| 577 | break; |
| 578 | } |
| 579 | } |
| 580 | |
| 581 | void wxNativeFontInfo::SetUnderlined(bool underlined) |
| 582 | { |
| 583 | lf.lfUnderline = underlined; |
| 584 | } |
| 585 | |
| 586 | bool wxNativeFontInfo::SetFaceName(const wxString& facename) |
| 587 | { |
| 588 | wxStrlcpy(lf.lfFaceName, facename.c_str(), WXSIZEOF(lf.lfFaceName)); |
| 589 | return true; |
| 590 | } |
| 591 | |
| 592 | void wxNativeFontInfo::SetFamily(wxFontFamily family) |
| 593 | { |
| 594 | BYTE ff_family = FF_DONTCARE; |
| 595 | |
| 596 | switch ( family ) |
| 597 | { |
| 598 | case wxFONTFAMILY_SCRIPT: |
| 599 | ff_family = FF_SCRIPT; |
| 600 | break; |
| 601 | |
| 602 | case wxFONTFAMILY_DECORATIVE: |
| 603 | ff_family = FF_DECORATIVE; |
| 604 | break; |
| 605 | |
| 606 | case wxFONTFAMILY_ROMAN: |
| 607 | ff_family = FF_ROMAN; |
| 608 | break; |
| 609 | |
| 610 | case wxFONTFAMILY_TELETYPE: |
| 611 | case wxFONTFAMILY_MODERN: |
| 612 | ff_family = FF_MODERN; |
| 613 | break; |
| 614 | |
| 615 | case wxFONTFAMILY_SWISS: |
| 616 | case wxFONTFAMILY_DEFAULT: |
| 617 | ff_family = FF_SWISS; |
| 618 | break; |
| 619 | |
| 620 | case wxFONTFAMILY_UNKNOWN: |
| 621 | wxFAIL_MSG( "invalid font family" ); |
| 622 | return; |
| 623 | } |
| 624 | |
| 625 | wxCHECK_RET( ff_family != FF_DONTCARE, "unknown wxFontFamily" ); |
| 626 | |
| 627 | lf.lfPitchAndFamily = (BYTE)(DEFAULT_PITCH) | ff_family; |
| 628 | |
| 629 | // reset the facename so that CreateFontIndirect() will automatically choose a |
| 630 | // face name based only on the font family. |
| 631 | lf.lfFaceName[0] = '\0'; |
| 632 | } |
| 633 | |
| 634 | void wxNativeFontInfo::SetEncoding(wxFontEncoding encoding) |
| 635 | { |
| 636 | wxNativeEncodingInfo info; |
| 637 | if ( !wxGetNativeFontEncoding(encoding, &info) ) |
| 638 | { |
| 639 | #if wxUSE_FONTMAP |
| 640 | if ( wxFontMapper::Get()->GetAltForEncoding(encoding, &info) ) |
| 641 | { |
| 642 | if ( !info.facename.empty() ) |
| 643 | { |
| 644 | // if we have this encoding only in some particular facename, use |
| 645 | // the facename - it is better to show the correct characters in a |
| 646 | // wrong facename than unreadable text in a correct one |
| 647 | SetFaceName(info.facename); |
| 648 | } |
| 649 | } |
| 650 | else |
| 651 | #endif // wxUSE_FONTMAP |
| 652 | { |
| 653 | // unsupported encoding, replace with the default |
| 654 | info.charset = DEFAULT_CHARSET; |
| 655 | } |
| 656 | } |
| 657 | |
| 658 | lf.lfCharSet = (BYTE)info.charset; |
| 659 | } |
| 660 | |
| 661 | bool wxNativeFontInfo::FromString(const wxString& s) |
| 662 | { |
| 663 | long l; |
| 664 | |
| 665 | wxStringTokenizer tokenizer(s, wxS(";"), wxTOKEN_RET_EMPTY_ALL); |
| 666 | |
| 667 | // first the version |
| 668 | wxString token = tokenizer.GetNextToken(); |
| 669 | if ( token != wxS('0') ) |
| 670 | return false; |
| 671 | |
| 672 | token = tokenizer.GetNextToken(); |
| 673 | if ( !token.ToLong(&l) ) |
| 674 | return false; |
| 675 | lf.lfHeight = l; |
| 676 | |
| 677 | token = tokenizer.GetNextToken(); |
| 678 | if ( !token.ToLong(&l) ) |
| 679 | return false; |
| 680 | lf.lfWidth = l; |
| 681 | |
| 682 | token = tokenizer.GetNextToken(); |
| 683 | if ( !token.ToLong(&l) ) |
| 684 | return false; |
| 685 | lf.lfEscapement = l; |
| 686 | |
| 687 | token = tokenizer.GetNextToken(); |
| 688 | if ( !token.ToLong(&l) ) |
| 689 | return false; |
| 690 | lf.lfOrientation = l; |
| 691 | |
| 692 | token = tokenizer.GetNextToken(); |
| 693 | if ( !token.ToLong(&l) ) |
| 694 | return false; |
| 695 | lf.lfWeight = l; |
| 696 | |
| 697 | token = tokenizer.GetNextToken(); |
| 698 | if ( !token.ToLong(&l) ) |
| 699 | return false; |
| 700 | lf.lfItalic = (BYTE)l; |
| 701 | |
| 702 | token = tokenizer.GetNextToken(); |
| 703 | if ( !token.ToLong(&l) ) |
| 704 | return false; |
| 705 | lf.lfUnderline = (BYTE)l; |
| 706 | |
| 707 | token = tokenizer.GetNextToken(); |
| 708 | if ( !token.ToLong(&l) ) |
| 709 | return false; |
| 710 | lf.lfStrikeOut = (BYTE)l; |
| 711 | |
| 712 | token = tokenizer.GetNextToken(); |
| 713 | if ( !token.ToLong(&l) ) |
| 714 | return false; |
| 715 | lf.lfCharSet = (BYTE)l; |
| 716 | |
| 717 | token = tokenizer.GetNextToken(); |
| 718 | if ( !token.ToLong(&l) ) |
| 719 | return false; |
| 720 | lf.lfOutPrecision = (BYTE)l; |
| 721 | |
| 722 | token = tokenizer.GetNextToken(); |
| 723 | if ( !token.ToLong(&l) ) |
| 724 | return false; |
| 725 | lf.lfClipPrecision = (BYTE)l; |
| 726 | |
| 727 | token = tokenizer.GetNextToken(); |
| 728 | if ( !token.ToLong(&l) ) |
| 729 | return false; |
| 730 | lf.lfQuality = (BYTE)l; |
| 731 | |
| 732 | token = tokenizer.GetNextToken(); |
| 733 | if ( !token.ToLong(&l) ) |
| 734 | return false; |
| 735 | lf.lfPitchAndFamily = (BYTE)l; |
| 736 | |
| 737 | if ( !tokenizer.HasMoreTokens() ) |
| 738 | return false; |
| 739 | |
| 740 | // the face name may be empty |
| 741 | SetFaceName(tokenizer.GetNextToken()); |
| 742 | |
| 743 | return true; |
| 744 | } |
| 745 | |
| 746 | wxString wxNativeFontInfo::ToString() const |
| 747 | { |
| 748 | wxString s; |
| 749 | |
| 750 | s.Printf(wxS("%d;%ld;%ld;%ld;%ld;%ld;%d;%d;%d;%d;%d;%d;%d;%d;%s"), |
| 751 | 0, // version, in case we want to change the format later |
| 752 | lf.lfHeight, |
| 753 | lf.lfWidth, |
| 754 | lf.lfEscapement, |
| 755 | lf.lfOrientation, |
| 756 | lf.lfWeight, |
| 757 | lf.lfItalic, |
| 758 | lf.lfUnderline, |
| 759 | lf.lfStrikeOut, |
| 760 | lf.lfCharSet, |
| 761 | lf.lfOutPrecision, |
| 762 | lf.lfClipPrecision, |
| 763 | lf.lfQuality, |
| 764 | lf.lfPitchAndFamily, |
| 765 | lf.lfFaceName); |
| 766 | |
| 767 | return s; |
| 768 | } |
| 769 | |
| 770 | // ---------------------------------------------------------------------------- |
| 771 | // wxFont |
| 772 | // ---------------------------------------------------------------------------- |
| 773 | |
| 774 | wxFont::wxFont(const wxString& fontdesc) |
| 775 | { |
| 776 | wxNativeFontInfo info; |
| 777 | if ( info.FromString(fontdesc) ) |
| 778 | (void)Create(info); |
| 779 | } |
| 780 | |
| 781 | bool wxFont::Create(const wxNativeFontInfo& info, WXHFONT hFont) |
| 782 | { |
| 783 | UnRef(); |
| 784 | |
| 785 | m_refData = new wxFontRefData(info, hFont); |
| 786 | |
| 787 | return RealizeResource(); |
| 788 | } |
| 789 | |
| 790 | bool wxFont::DoCreate(int pointSize, |
| 791 | const wxSize& pixelSize, |
| 792 | bool sizeUsingPixels, |
| 793 | wxFontFamily family, |
| 794 | wxFontStyle style, |
| 795 | wxFontWeight weight, |
| 796 | bool underlined, |
| 797 | const wxString& faceName, |
| 798 | wxFontEncoding encoding) |
| 799 | { |
| 800 | UnRef(); |
| 801 | |
| 802 | // wxDEFAULT is a valid value for the font size too so we must treat it |
| 803 | // specially here (otherwise the size would be 70 == wxDEFAULT value) |
| 804 | if ( pointSize == wxDEFAULT ) |
| 805 | { |
| 806 | pointSize = wxNORMAL_FONT->GetPointSize(); |
| 807 | } |
| 808 | |
| 809 | m_refData = new wxFontRefData(pointSize, pixelSize, sizeUsingPixels, |
| 810 | family, style, weight, |
| 811 | underlined, faceName, encoding); |
| 812 | |
| 813 | return RealizeResource(); |
| 814 | } |
| 815 | |
| 816 | wxFont::~wxFont() |
| 817 | { |
| 818 | } |
| 819 | |
| 820 | // ---------------------------------------------------------------------------- |
| 821 | // real implementation |
| 822 | // ---------------------------------------------------------------------------- |
| 823 | |
| 824 | wxGDIRefData *wxFont::CreateGDIRefData() const |
| 825 | { |
| 826 | return new wxFontRefData(); |
| 827 | } |
| 828 | |
| 829 | wxGDIRefData *wxFont::CloneGDIRefData(const wxGDIRefData *data) const |
| 830 | { |
| 831 | return new wxFontRefData(*static_cast<const wxFontRefData *>(data)); |
| 832 | } |
| 833 | |
| 834 | bool wxFont::RealizeResource() |
| 835 | { |
| 836 | // NOTE: the GetHFONT() call automatically triggers a reallocation of |
| 837 | // the HFONT if necessary (will do nothing if we already have the resource); |
| 838 | // it returns NULL only if there is a failure in wxFontRefData::Alloc()... |
| 839 | return GetHFONT() != NULL; |
| 840 | } |
| 841 | |
| 842 | bool wxFont::FreeResource(bool WXUNUSED(force)) |
| 843 | { |
| 844 | if ( !M_FONTDATA ) |
| 845 | return false; |
| 846 | |
| 847 | M_FONTDATA->Free(); |
| 848 | |
| 849 | return true; |
| 850 | } |
| 851 | |
| 852 | WXHANDLE wxFont::GetResourceHandle() const |
| 853 | { |
| 854 | return (WXHANDLE)GetHFONT(); |
| 855 | } |
| 856 | |
| 857 | WXHFONT wxFont::GetHFONT() const |
| 858 | { |
| 859 | // NOTE: wxFontRefData::GetHFONT() will automatically call |
| 860 | // wxFontRefData::Alloc() if necessary |
| 861 | return M_FONTDATA ? M_FONTDATA->GetHFONT() : 0; |
| 862 | } |
| 863 | |
| 864 | bool wxFont::IsFree() const |
| 865 | { |
| 866 | return M_FONTDATA && !M_FONTDATA->HasHFONT(); |
| 867 | } |
| 868 | |
| 869 | // ---------------------------------------------------------------------------- |
| 870 | // change font attribute: we recreate font when doing it |
| 871 | // ---------------------------------------------------------------------------- |
| 872 | |
| 873 | void wxFont::SetPointSize(int pointSize) |
| 874 | { |
| 875 | AllocExclusive(); |
| 876 | |
| 877 | M_FONTDATA->Free(); |
| 878 | M_FONTDATA->SetPointSize(pointSize); |
| 879 | } |
| 880 | |
| 881 | void wxFont::SetPixelSize(const wxSize& pixelSize) |
| 882 | { |
| 883 | AllocExclusive(); |
| 884 | |
| 885 | M_FONTDATA->SetPixelSize(pixelSize); |
| 886 | } |
| 887 | |
| 888 | void wxFont::SetFamily(wxFontFamily family) |
| 889 | { |
| 890 | AllocExclusive(); |
| 891 | |
| 892 | M_FONTDATA->SetFamily(family); |
| 893 | } |
| 894 | |
| 895 | void wxFont::SetStyle(wxFontStyle style) |
| 896 | { |
| 897 | AllocExclusive(); |
| 898 | |
| 899 | M_FONTDATA->SetStyle(style); |
| 900 | } |
| 901 | |
| 902 | void wxFont::SetWeight(wxFontWeight weight) |
| 903 | { |
| 904 | AllocExclusive(); |
| 905 | |
| 906 | M_FONTDATA->SetWeight(weight); |
| 907 | } |
| 908 | |
| 909 | bool wxFont::SetFaceName(const wxString& faceName) |
| 910 | { |
| 911 | AllocExclusive(); |
| 912 | |
| 913 | if ( !M_FONTDATA->SetFaceName(faceName) ) |
| 914 | return false; |
| 915 | |
| 916 | // NB: using win32's GetObject() API on M_FONTDATA->GetHFONT() |
| 917 | // to retrieve a LOGFONT and then compare lf.lfFaceName |
| 918 | // with given facename is not reliable at all: |
| 919 | // Windows copies the facename given to ::CreateFontIndirect() |
| 920 | // without any validity check. |
| 921 | // Thus we use wxFontBase::SetFaceName to check if facename |
| 922 | // is valid... |
| 923 | return wxFontBase::SetFaceName(faceName); |
| 924 | } |
| 925 | |
| 926 | void wxFont::SetUnderlined(bool underlined) |
| 927 | { |
| 928 | AllocExclusive(); |
| 929 | |
| 930 | M_FONTDATA->SetUnderlined(underlined); |
| 931 | } |
| 932 | |
| 933 | void wxFont::SetEncoding(wxFontEncoding encoding) |
| 934 | { |
| 935 | AllocExclusive(); |
| 936 | |
| 937 | M_FONTDATA->SetEncoding(encoding); |
| 938 | } |
| 939 | |
| 940 | void wxFont::DoSetNativeFontInfo(const wxNativeFontInfo& info) |
| 941 | { |
| 942 | AllocExclusive(); |
| 943 | |
| 944 | M_FONTDATA->SetNativeFontInfo(info); |
| 945 | } |
| 946 | |
| 947 | // ---------------------------------------------------------------------------- |
| 948 | // accessors |
| 949 | // ---------------------------------------------------------------------------- |
| 950 | |
| 951 | int wxFont::GetPointSize() const |
| 952 | { |
| 953 | wxCHECK_MSG( IsOk(), 0, wxT("invalid font") ); |
| 954 | |
| 955 | return M_FONTDATA->GetPointSize(); |
| 956 | } |
| 957 | |
| 958 | wxSize wxFont::GetPixelSize() const |
| 959 | { |
| 960 | wxCHECK_MSG( IsOk(), wxDefaultSize, wxT("invalid font") ); |
| 961 | |
| 962 | return M_FONTDATA->GetPixelSize(); |
| 963 | } |
| 964 | |
| 965 | bool wxFont::IsUsingSizeInPixels() const |
| 966 | { |
| 967 | wxCHECK_MSG( IsOk(), 0, wxT("invalid font") ); |
| 968 | |
| 969 | return M_FONTDATA->IsUsingSizeInPixels(); |
| 970 | } |
| 971 | |
| 972 | wxFontFamily wxFont::DoGetFamily() const |
| 973 | { |
| 974 | return M_FONTDATA->GetFamily(); |
| 975 | } |
| 976 | |
| 977 | wxFontStyle wxFont::GetStyle() const |
| 978 | { |
| 979 | wxCHECK_MSG( IsOk(), wxFONTSTYLE_MAX, wxT("invalid font") ); |
| 980 | |
| 981 | return M_FONTDATA->GetStyle(); |
| 982 | } |
| 983 | |
| 984 | wxFontWeight wxFont::GetWeight() const |
| 985 | { |
| 986 | wxCHECK_MSG( IsOk(), wxFONTWEIGHT_MAX, wxT("invalid font") ); |
| 987 | |
| 988 | return M_FONTDATA->GetWeight(); |
| 989 | } |
| 990 | |
| 991 | bool wxFont::GetUnderlined() const |
| 992 | { |
| 993 | wxCHECK_MSG( IsOk(), false, wxT("invalid font") ); |
| 994 | |
| 995 | return M_FONTDATA->GetUnderlined(); |
| 996 | } |
| 997 | |
| 998 | wxString wxFont::GetFaceName() const |
| 999 | { |
| 1000 | wxCHECK_MSG( IsOk(), wxEmptyString, wxT("invalid font") ); |
| 1001 | |
| 1002 | return M_FONTDATA->GetFaceName(); |
| 1003 | } |
| 1004 | |
| 1005 | wxFontEncoding wxFont::GetEncoding() const |
| 1006 | { |
| 1007 | wxCHECK_MSG( IsOk(), wxFONTENCODING_DEFAULT, wxT("invalid font") ); |
| 1008 | |
| 1009 | return M_FONTDATA->GetEncoding(); |
| 1010 | } |
| 1011 | |
| 1012 | const wxNativeFontInfo *wxFont::GetNativeFontInfo() const |
| 1013 | { |
| 1014 | return IsOk() ? &(M_FONTDATA->GetNativeFontInfo()) : NULL; |
| 1015 | } |
| 1016 | |
| 1017 | bool wxFont::IsFixedWidth() const |
| 1018 | { |
| 1019 | wxCHECK_MSG( IsOk(), false, wxT("invalid font") ); |
| 1020 | |
| 1021 | // LOGFONT doesn't contain the correct pitch information so we need to call |
| 1022 | // GetTextMetrics() to get it |
| 1023 | ScreenHDC hdc; |
| 1024 | SelectInHDC selectFont(hdc, M_FONTDATA->GetHFONT()); |
| 1025 | |
| 1026 | TEXTMETRIC tm; |
| 1027 | if ( !::GetTextMetrics(hdc, &tm) ) |
| 1028 | { |
| 1029 | wxLogLastError(wxT("GetTextMetrics")); |
| 1030 | return false; |
| 1031 | } |
| 1032 | |
| 1033 | // Quoting MSDN description of TMPF_FIXED_PITCH: "Note very carefully that |
| 1034 | // those meanings are the opposite of what the constant name implies." |
| 1035 | return !(tm.tmPitchAndFamily & TMPF_FIXED_PITCH); |
| 1036 | } |