dlls/gdiplus/font.c

   1 /*
   2  * Copyright (C) 2007 Google (Evan Stade)
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include <stdarg.h>
  20
  21 #include "windef.h"
  22 #include "winbase.h"
  23 #include "wingdi.h"
  24 #include "winnls.h"
  25 #include "winreg.h"
  26 #include "wine/debug.h"
  27 #include "wine/unicode.h"
  28
  29 WINE_DEFAULT_DEBUG_CHANNEL (gdiplus);
  30
  31 #include "objbase.h"
  32
  33 #include "gdiplus.h"
  34 #include "gdiplus_private.h"
  35
  36 static const REAL mm_per_inch = 25.4;
  37 static const REAL inch_per_point = 1.0/72.0;
  38
  39 static GpFontCollection installedFontCollection = {0};
  40
  41 static inline REAL get_dpi (void)
  42 {
  43     REAL dpi;
  44     GpGraphics *graphics;
  45     HDC hdc = GetDC(0);
  46     GdipCreateFromHDC (hdc, &graphics);
  47     GdipGetDpiX(graphics, &dpi);
  48     GdipDeleteGraphics(graphics);
  49     ReleaseDC (0, hdc);
  50
  51     return dpi;
  52 }
  53
  54 static inline REAL point_to_pixel (REAL point)
  55 {
  56     return point * get_dpi() * inch_per_point;
  57 }
  58
  59 static inline REAL inch_to_pixel (REAL inch)
  60 {
  61     return inch * get_dpi();
  62 }
  63
  64 static inline REAL document_to_pixel (REAL doc)
  65 {
  66     return doc * (get_dpi() / 300.0); /* Per MSDN */
  67 }
  68
  69 static inline REAL mm_to_pixel (REAL mm)
  70 {
  71     return mm * (get_dpi() / mm_per_inch);
  72 }
  73
  74 /*******************************************************************************
  75  * GdipCreateFont [GDIPLUS.@]
  76  *
  77  * Create a new font based off of a FontFamily
  78  *
  79  * PARAMS
  80  *  *fontFamily     [I] Family to base the font off of
  81  *  emSize          [I] Size of the font
  82  *  style           [I] Bitwise OR of FontStyle enumeration
  83  *  unit            [I] Unit emSize is measured in
  84  *  **font          [I] the resulting Font object
  85  *
  86  * RETURNS
  87  *  SUCCESS: Ok
  88  *  FAILURE: InvalidParameter if fontfamily or font is NULL.
  89  *  FAILURE: FontFamilyNotFound if an invalid FontFamily is given
  90  *
  91  * NOTES
  92  *  UnitDisplay is unsupported.
  93  *  emSize is stored separately from lfHeight, to hold the fraction.
  94  */
  95 GpStatus WINGDIPAPI GdipCreateFont(GDIPCONST GpFontFamily *fontFamily,
  96                         REAL emSize, INT style, Unit unit, GpFont **font)
  97 {
  98     WCHAR facename[LF_FACESIZE];
  99     LOGFONTW* lfw;
 100     const NEWTEXTMETRICW* tmw;
 101     GpStatus stat;
 102
 103     if (!fontFamily || !font)
 104         return InvalidParameter;
 105
 106     TRACE("%p (%s), %f, %d, %d, %p\n", fontFamily,
 107             debugstr_w(fontFamily->FamilyName), emSize, style, unit, font);
 108
 109     stat = GdipGetFamilyName (fontFamily, facename, 0);
 110     if (stat != Ok) return stat;
 111     *font = GdipAlloc(sizeof(GpFont));
 112
 113     tmw = &fontFamily->tmw;
 114     lfw = &((*font)->lfw);
 115     ZeroMemory(&(*lfw), sizeof(*lfw));
 116
 117     lfw->lfWeight = tmw->tmWeight;
 118     lfw->lfItalic = tmw->tmItalic;
 119     lfw->lfUnderline = tmw->tmUnderlined;
 120     lfw->lfStrikeOut = tmw->tmStruckOut;
 121     lfw->lfCharSet = tmw->tmCharSet;
 122     lfw->lfPitchAndFamily = tmw->tmPitchAndFamily;
 123     lstrcpynW(lfw->lfFaceName, facename, LF_FACESIZE);
 124
 125     switch (unit)
 126     {
 127         case UnitWorld:
 128             /* FIXME: Figure out when World != Pixel */
 129             lfw->lfHeight = emSize; break;
 130         case UnitDisplay:
 131             FIXME("Unknown behavior for UnitDisplay! Please report!\n");
 132             /* FIXME: Figure out how this works...
 133              * MSDN says that if "DISPLAY" is a monitor, then pixel should be
 134              * used. That's not what I got. Tests on Windows revealed no output,
 135              * and the tests in tests/font crash windows */
 136             lfw->lfHeight = 0; break;
 137         case UnitPixel:
 138             lfw->lfHeight = emSize; break;
 139         case UnitPoint:
 140             lfw->lfHeight = point_to_pixel(emSize); break;
 141         case UnitInch:
 142             lfw->lfHeight = inch_to_pixel(emSize); break;
 143         case UnitDocument:
 144             lfw->lfHeight = document_to_pixel(emSize); break;
 145         case UnitMillimeter:
 146             lfw->lfHeight = mm_to_pixel(emSize); break;
 147     }
 148
 149     lfw->lfHeight *= -1;
 150
 151     lfw->lfWeight = style & FontStyleBold ? 700 : 400;
 152     lfw->lfItalic = style & FontStyleItalic;
 153     lfw->lfUnderline = style & FontStyleUnderline;
 154     lfw->lfStrikeOut = style & FontStyleStrikeout;
 155
 156     (*font)->unit = unit;
 157     (*font)->emSize = emSize;
 158     (*font)->height = tmw->ntmSizeEM;
 159     (*font)->line_spacing = tmw->tmAscent + tmw->tmDescent + tmw->tmExternalLeading;
 160
 161     TRACE("<-- %p\n", *font);
 162
 163     return Ok;
 164 }
 165
 166 /*******************************************************************************
 167  * GdipCreateFontFromLogfontW [GDIPLUS.@]
 168  */
 169 GpStatus WINGDIPAPI GdipCreateFontFromLogfontW(HDC hdc,
 170     GDIPCONST LOGFONTW *logfont, GpFont **font)
 171 {
 172     HFONT hfont, oldfont;
 173     TEXTMETRICW textmet;
 174
 175     TRACE("(%p, %p, %p)\n", hdc, logfont, font);
 176
 177     if(!logfont || !font)
 178         return InvalidParameter;
 179
 180     if (logfont->lfFaceName[0] == 0)
 181         return NotTrueTypeFont;
 182
 183     *font = GdipAlloc(sizeof(GpFont));
 184     if(!*font)  return OutOfMemory;
 185
 186     memcpy((*font)->lfw.lfFaceName, logfont->lfFaceName, LF_FACESIZE *
 187            sizeof(WCHAR));
 188     (*font)->lfw.lfHeight = logfont->lfHeight;
 189     (*font)->lfw.lfItalic = logfont->lfItalic;
 190     (*font)->lfw.lfUnderline = logfont->lfUnderline;
 191     (*font)->lfw.lfStrikeOut = logfont->lfStrikeOut;
 192
 193     (*font)->emSize = logfont->lfHeight;
 194     (*font)->unit = UnitPixel;
 195
 196     hfont = CreateFontIndirectW(&(*font)->lfw);
 197     oldfont = SelectObject(hdc, hfont);
 198     GetTextMetricsW(hdc, &textmet);
 199
 200     (*font)->lfw.lfHeight = -(textmet.tmHeight-textmet.tmInternalLeading);
 201     (*font)->lfw.lfWeight = textmet.tmWeight;
 202     (*font)->lfw.lfCharSet = textmet.tmCharSet;
 203
 204     (*font)->height = 1; /* FIXME: need NEWTEXTMETRIC.ntmSizeEM here */
 205     (*font)->line_spacing = textmet.tmAscent + textmet.tmDescent + textmet.tmExternalLeading;
 206
 207     SelectObject(hdc, oldfont);
 208     DeleteObject(hfont);
 209
 210     TRACE("<-- %p\n", *font);
 211
 212     return Ok;
 213 }
 214
 215 /*******************************************************************************
 216  * GdipCreateFontFromLogfontA [GDIPLUS.@]
 217  */
 218 GpStatus WINGDIPAPI GdipCreateFontFromLogfontA(HDC hdc,
 219     GDIPCONST LOGFONTA *lfa, GpFont **font)
 220 {
 221     LOGFONTW lfw;
 222
 223     TRACE("(%p, %p, %p)\n", hdc, lfa, font);
 224
 225     if(!lfa || !font)
 226         return InvalidParameter;
 227
 228     memcpy(&lfw, lfa, FIELD_OFFSET(LOGFONTA,lfFaceName) );
 229
 230     if(!MultiByteToWideChar(CP_ACP, 0, lfa->lfFaceName, -1, lfw.lfFaceName, LF_FACESIZE))
 231         return GenericError;
 232
 233     return GdipCreateFontFromLogfontW(hdc, &lfw, font);
 234 }
 235
 236 /*******************************************************************************
 237  * GdipDeleteFont [GDIPLUS.@]
 238  */
 239 GpStatus WINGDIPAPI GdipDeleteFont(GpFont* font)
 240 {
 241     TRACE("(%p)\n", font);
 242
 243     if(!font)
 244         return InvalidParameter;
 245
 246     GdipFree(font);
 247
 248     return Ok;
 249 }
 250
 251 /*******************************************************************************
 252  * GdipCreateFontFromDC [GDIPLUS.@]
 253  */
 254 GpStatus WINGDIPAPI GdipCreateFontFromDC(HDC hdc, GpFont **font)
 255 {
 256     HFONT hfont;
 257     LOGFONTW lfw;
 258
 259     TRACE("(%p, %p)\n", hdc, font);
 260
 261     if(!font)
 262         return InvalidParameter;
 263
 264     hfont = GetCurrentObject(hdc, OBJ_FONT);
 265     if(!hfont)
 266         return GenericError;
 267
 268     if(!GetObjectW(hfont, sizeof(LOGFONTW), &lfw))
 269         return GenericError;
 270
 271     return GdipCreateFontFromLogfontW(hdc, &lfw, font);
 272 }
 273
 274 /*******************************************************************************
 275  * GdipGetFamily [GDIPLUS.@]
 276  *
 277  * Returns the FontFamily for the specified Font
 278  *
 279  * PARAMS
 280  *  font    [I] Font to request from
 281  *  family  [O] Resulting FontFamily object
 282  *
 283  * RETURNS
 284  *  SUCCESS: Ok
 285  *  FAILURE: An element of GpStatus
 286  */
 287 GpStatus WINGDIPAPI GdipGetFamily(GpFont *font, GpFontFamily **family)
 288 {
 289     TRACE("%p %p\n", font, family);
 290
 291     if (!(font && family))
 292         return InvalidParameter;
 293
 294     return GdipCreateFontFamilyFromName(font->lfw.lfFaceName, NULL, family);
 295 }
 296
 297 /******************************************************************************
 298  * GdipGetFontSize [GDIPLUS.@]
 299  *
 300  * Returns the size of the font in Units
 301  *
 302  * PARAMS
 303  *  *font       [I] The font to retrieve size from
 304  *  *size       [O] Pointer to hold retrieved value
 305  *
 306  * RETURNS
 307  *  SUCCESS: Ok
 308  *  FAILURE: InvalidParameter (font or size was NULL)
 309  *
 310  * NOTES
 311  *  Size returned is actually emSize -- not internal size used for drawing.
 312  */
 313 GpStatus WINGDIPAPI GdipGetFontSize(GpFont *font, REAL *size)
 314 {
 315     TRACE("(%p, %p)\n", font, size);
 316
 317     if (!(font && size)) return InvalidParameter;
 318
 319     *size = font->emSize;
 320
 321     return Ok;
 322 }
 323
 324 /*******************************************************************************
 325  * GdipGetFontStyle [GDIPLUS.@]
 326  *
 327  * Gets the font's style, returned in bitwise OR of FontStyle enumeration
 328  *
 329  * PARAMS
 330  *  font    [I] font to request from
 331  *  style   [O] resulting pointer to a FontStyle enumeration
 332  *
 333  * RETURNS
 334  *  SUCCESS: Ok
 335  *  FAILURE: InvalidParameter
 336  */
 337 GpStatus WINGDIPAPI GdipGetFontStyle(GpFont *font, INT *style)
 338 {
 339     TRACE("%p %p\n", font, style);
 340
 341     if (!(font && style))
 342         return InvalidParameter;
 343
 344     if (font->lfw.lfWeight > 400)
 345         *style = FontStyleBold;
 346     else
 347         *style = 0;
 348     if (font->lfw.lfItalic)
 349         *style |= FontStyleItalic;
 350     if (font->lfw.lfUnderline)
 351         *style |= FontStyleUnderline;
 352     if (font->lfw.lfStrikeOut)
 353         *style |= FontStyleStrikeout;
 354
 355     return Ok;
 356 }
 357
 358 /*******************************************************************************
 359  * GdipGetFontUnit  [GDIPLUS.@]
 360  *
 361  * PARAMS
 362  *  font    [I] Font to retrieve from
 363  *  unit    [O] Return value
 364  *
 365  * RETURNS
 366  *  FAILURE: font or unit was NULL
 367  *  OK: otherwise
 368  */
 369 GpStatus WINGDIPAPI GdipGetFontUnit(GpFont *font, Unit *unit)
 370 {
 371     TRACE("(%p, %p)\n", font, unit);
 372
 373     if (!(font && unit)) return InvalidParameter;
 374
 375     *unit = font->unit;
 376
 377     return Ok;
 378 }
 379
 380 /*******************************************************************************
 381  * GdipGetLogFontA [GDIPLUS.@]
 382  */
 383 GpStatus WINGDIPAPI GdipGetLogFontA(GpFont *font, GpGraphics *graphics,
 384     LOGFONTA *lfa)
 385 {
 386     GpStatus status;
 387     LOGFONTW lfw;
 388
 389     TRACE("(%p, %p, %p)\n", font, graphics, lfa);
 390
 391     status = GdipGetLogFontW(font, graphics, &lfw);
 392     if(status != Ok)
 393         return status;
 394
 395     memcpy(lfa, &lfw, FIELD_OFFSET(LOGFONTA,lfFaceName) );
 396
 397     if(!WideCharToMultiByte(CP_ACP, 0, lfw.lfFaceName, -1, lfa->lfFaceName, LF_FACESIZE, NULL, NULL))
 398         return GenericError;
 399
 400     return Ok;
 401 }
 402
 403 /*******************************************************************************
 404  * GdipGetLogFontW [GDIPLUS.@]
 405  */
 406 GpStatus WINGDIPAPI GdipGetLogFontW(GpFont *font, GpGraphics *graphics,
 407     LOGFONTW *lfw)
 408 {
 409     TRACE("(%p, %p, %p)\n", font, graphics, lfw);
 410
 411     /* FIXME: use graphics */
 412     if(!font || !graphics || !lfw)
 413         return InvalidParameter;
 414
 415     *lfw = font->lfw;
 416
 417     return Ok;
 418 }
 419
 420 /*******************************************************************************
 421  * GdipCloneFont [GDIPLUS.@]
 422  */
 423 GpStatus WINGDIPAPI GdipCloneFont(GpFont *font, GpFont **cloneFont)
 424 {
 425     TRACE("(%p, %p)\n", font, cloneFont);
 426
 427     if(!font || !cloneFont)
 428         return InvalidParameter;
 429
 430     *cloneFont = GdipAlloc(sizeof(GpFont));
 431     if(!*cloneFont)    return OutOfMemory;
 432
 433     **cloneFont = *font;
 434
 435     return Ok;
 436 }
 437
 438 /*******************************************************************************
 439  * GdipGetFontHeight [GDIPLUS.@]
 440  * PARAMS
 441  *  font        [I] Font to retrieve height from
 442  *  graphics    [I] The current graphics context
 443  *  height      [O] Resulting height
 444  * RETURNS
 445  *  SUCCESS: Ok
 446  *  FAILURE: Another element of GpStatus
 447  *
 448  * NOTES
 449  *  Forwards to GdipGetFontHeightGivenDPI
 450  */
 451 GpStatus WINGDIPAPI GdipGetFontHeight(GDIPCONST GpFont *font,
 452         GDIPCONST GpGraphics *graphics, REAL *height)
 453 {
 454     REAL dpi;
 455     GpStatus stat;
 456
 457     TRACE("%p %p %p\n", font, graphics, height);
 458
 459     stat = GdipGetDpiY((GpGraphics*)graphics, &dpi);
 460
 461     if (stat == Ok)
 462         stat = GdipGetFontHeightGivenDPI(font, dpi, height);
 463
 464     return stat;
 465 }
 466
 467 /*******************************************************************************
 468  * GdipGetFontHeightGivenDPI [GDIPLUS.@]
 469  * PARAMS
 470  *  font        [I] Font to retrieve DPI from
 471  *  dpi         [I] DPI to assume
 472  *  height      [O] Return value
 473  *
 474  * RETURNS
 475  *  SUCCESS: Ok
 476  *  FAILURE: InvalidParameter if font or height is NULL
 477  *
 478  * NOTES
 479  *  According to MSDN, the result is (lineSpacing)*(fontSize / emHeight)*dpi
 480  *  (for anything other than unit Pixel)
 481  */
 482 GpStatus WINGDIPAPI GdipGetFontHeightGivenDPI(GDIPCONST GpFont *font, REAL dpi, REAL *height)
 483 {
 484     REAL font_height;
 485
 486     TRACE("%p (%s), %f, %p\n", font,
 487             debugstr_w(font->lfw.lfFaceName), dpi, height);
 488
 489     if (!(font && height)) return InvalidParameter;
 490
 491     font_height = font->line_spacing * (font->emSize / font->height);
 492
 493     switch (font->unit)
 494     {
 495         case UnitPixel:
 496         case UnitWorld:
 497             *height = font_height;
 498             break;
 499         case UnitPoint:
 500             *height = font_height * dpi * inch_per_point;
 501             break;
 502         case UnitInch:
 503             *height = font_height * dpi;
 504             break;
 505         case UnitDocument:
 506             *height = font_height * (dpi / 300.0);
 507             break;
 508         case UnitMillimeter:
 509             *height = font_height * (dpi / mm_per_inch);
 510             break;
 511         default:
 512             FIXME("Unhandled unit type: %d\n", font->unit);
 513             return NotImplemented;
 514     }
 515
 516     return Ok;
 517 }
 518
 519 /***********************************************************************
 520  * Borrowed from GDI32:
 521  *
 522  * Elf is really an ENUMLOGFONTEXW, and ntm is a NEWTEXTMETRICEXW.
 523  *     We have to use other types because of the FONTENUMPROCW definition.
 524  */
 525 static INT CALLBACK is_font_installed_proc(const LOGFONTW *elf,
 526                             const TEXTMETRICW *ntm, DWORD type, LPARAM lParam)
 527 {
 528     if (!ntm || type == RASTER_FONTTYPE)
 529     {
 530         return 1;
 531     }
 532
 533     *(NEWTEXTMETRICW*)lParam = *(const NEWTEXTMETRICW*)ntm;
 534
 535     return 0;
 536 }
 537
 538 static BOOL find_installed_font(const WCHAR *name, NEWTEXTMETRICW *ntm)
 539 {
 540     HDC hdc = GetDC(0);
 541     BOOL ret = FALSE;
 542
 543     if(!EnumFontFamiliesW(hdc, name, is_font_installed_proc, (LPARAM)ntm))
 544         ret = TRUE;
 545
 546     ReleaseDC(0, hdc);
 547     return ret;
 548 }
 549
 550 /*******************************************************************************
 551  * GdipCreateFontFamilyFromName [GDIPLUS.@]
 552  *
 553  * Creates a font family object based on a supplied name
 554  *
 555  * PARAMS
 556  *  name               [I] Name of the font
 557  *  fontCollection     [I] What font collection (if any) the font belongs to (may be NULL)
 558  *  FontFamily         [O] Pointer to the resulting FontFamily object
 559  *
 560  * RETURNS
 561  *  SUCCESS: Ok
 562  *  FAILURE: FamilyNotFound if the requested FontFamily does not exist on the system
 563  *  FAILURE: Invalid parameter if FontFamily or name is NULL
 564  *
 565  * NOTES
 566  *   If fontCollection is NULL then the object is not part of any collection
 567  *
 568  */
 569
 570 GpStatus WINGDIPAPI GdipCreateFontFamilyFromName(GDIPCONST WCHAR *name,
 571                                         GpFontCollection *fontCollection,
 572                                         GpFontFamily **FontFamily)
 573 {
 574     GpFontFamily* ffamily;
 575     NEWTEXTMETRICW ntm;
 576
 577     TRACE("%s, %p %p\n", debugstr_w(name), fontCollection, FontFamily);
 578
 579     if (!(name && FontFamily))
 580         return InvalidParameter;
 581     if (fontCollection)
 582         FIXME("No support for FontCollections yet!\n");
 583
 584     if (!find_installed_font(name, &ntm))
 585         return FontFamilyNotFound;
 586
 587     ffamily = GdipAlloc(sizeof (GpFontFamily));
 588     if (!ffamily) return OutOfMemory;
 589
 590     ffamily->tmw = ntm;
 591     lstrcpynW(ffamily->FamilyName, name, LF_FACESIZE);
 592
 593     *FontFamily = ffamily;
 594
 595     TRACE("<-- %p\n", ffamily);
 596
 597     return Ok;
 598 }
 599
 600 /*******************************************************************************
 601  * GdipCloneFontFamily [GDIPLUS.@]
 602  *
 603  * Creates a deep copy of a Font Family object
 604  *
 605  * PARAMS
 606  *  FontFamily          [I] Font to clone
 607  *  clonedFontFamily    [O] The resulting cloned font
 608  *
 609  * RETURNS
 610  *  SUCCESS: Ok
 611  */
 612 GpStatus WINGDIPAPI GdipCloneFontFamily(GpFontFamily* FontFamily, GpFontFamily** clonedFontFamily)
 613 {
 614     if (!(FontFamily && clonedFontFamily)) return InvalidParameter;
 615
 616     TRACE("stub: %p (%s), %p\n", FontFamily,
 617             debugstr_w(FontFamily->FamilyName), clonedFontFamily);
 618
 619     *clonedFontFamily = GdipAlloc(sizeof(GpFontFamily));
 620     if (!*clonedFontFamily) return OutOfMemory;
 621
 622     (*clonedFontFamily)->tmw = FontFamily->tmw;
 623     lstrcpyW((*clonedFontFamily)->FamilyName, FontFamily->FamilyName);
 624
 625     TRACE("<-- %p\n", *clonedFontFamily);
 626
 627     return Ok;
 628 }
 629
 630 /*******************************************************************************
 631  * GdipGetFamilyName [GDIPLUS.@]
 632  *
 633  * Returns the family name into name
 634  *
 635  * PARAMS
 636  *  *family     [I] Family to retrieve from
 637  *  *name       [O] WCHARS of the family name
 638  *  LANGID      [I] charset
 639  *
 640  * RETURNS
 641  *  SUCCESS: Ok
 642  *  FAILURE: InvalidParameter if family is NULL
 643  *
 644  * NOTES
 645  *   If name is a NULL ptr, then both XP and Vista will crash (so we do as well)
 646  */
 647 GpStatus WINGDIPAPI GdipGetFamilyName (GDIPCONST GpFontFamily *family,
 648                                        WCHAR *name, LANGID language)
 649 {
 650     static int lang_fixme;
 651
 652     if (family == NULL)
 653          return InvalidParameter;
 654
 655     TRACE("%p, %p, %d\n", family, name, language);
 656
 657     if (language != LANG_NEUTRAL && !lang_fixme++)
 658         FIXME("No support for handling of multiple languages!\n");
 659
 660     lstrcpynW (name, family->FamilyName, LF_FACESIZE);
 661
 662     return Ok;
 663 }
 664
 665
 666 /*****************************************************************************
 667  * GdipDeleteFontFamily [GDIPLUS.@]
 668  *
 669  * Removes the specified FontFamily
 670  *
 671  * PARAMS
 672  *  *FontFamily         [I] The family to delete
 673  *
 674  * RETURNS
 675  *  SUCCESS: Ok
 676  *  FAILURE: InvalidParameter if FontFamily is NULL.
 677  *
 678  */
 679 GpStatus WINGDIPAPI GdipDeleteFontFamily(GpFontFamily *FontFamily)
 680 {
 681     if (!FontFamily)
 682         return InvalidParameter;
 683     TRACE("Deleting %p (%s)\n", FontFamily, debugstr_w(FontFamily->FamilyName));
 684
 685     GdipFree (FontFamily);
 686
 687     return Ok;
 688 }
 689
 690 GpStatus WINGDIPAPI GdipGetCellAscent(GDIPCONST GpFontFamily *family,
 691         INT style, UINT16* CellAscent)
 692 {
 693     if (!(family && CellAscent)) return InvalidParameter;
 694
 695     *CellAscent = family->tmw.tmAscent;
 696
 697     return Ok;
 698 }
 699
 700 GpStatus WINGDIPAPI GdipGetCellDescent(GDIPCONST GpFontFamily *family,
 701         INT style, UINT16* CellDescent)
 702 {
 703     TRACE("(%p, %d, %p)\n", family, style, CellDescent);
 704
 705     if (!(family && CellDescent)) return InvalidParameter;
 706
 707     *CellDescent = family->tmw.tmDescent;
 708
 709     return Ok;
 710 }
 711
 712 /*******************************************************************************
 713  * GdipGetEmHeight [GDIPLUS.@]
 714  *
 715  * Gets the height of the specified family in EmHeights
 716  *
 717  * PARAMS
 718  *  family      [I] Family to retrieve from
 719  *  style       [I] (optional) style
 720  *  EmHeight    [O] return value
 721  *
 722  * RETURNS
 723  *  SUCCESS: Ok
 724  *  FAILURE: InvalidParameter
 725  */
 726 GpStatus WINGDIPAPI GdipGetEmHeight(GDIPCONST GpFontFamily *family, INT style, UINT16* EmHeight)
 727 {
 728     if (!(family && EmHeight)) return InvalidParameter;
 729
 730     TRACE("%p (%s), %d, %p\n", family, debugstr_w(family->FamilyName), style, EmHeight);
 731
 732     *EmHeight = family->tmw.ntmSizeEM;
 733
 734     return Ok;
 735 }
 736
 737
 738 /*******************************************************************************
 739  * GdipGetLineSpacing [GDIPLUS.@]
 740  *
 741  * Returns the line spacing in design units
 742  *
 743  * PARAMS
 744  *  family      [I] Family to retrieve from
 745  *  style       [I] (Optional) font style
 746  *  LineSpacing [O] Return value
 747  *
 748  * RETURNS
 749  *  SUCCESS: Ok
 750  *  FAILURE: InvalidParameter (family or LineSpacing was NULL)
 751  */
 752 GpStatus WINGDIPAPI GdipGetLineSpacing(GDIPCONST GpFontFamily *family,
 753         INT style, UINT16* LineSpacing)
 754 {
 755     TRACE("%p, %d, %p\n", family, style, LineSpacing);
 756
 757     if (!(family && LineSpacing))
 758         return InvalidParameter;
 759
 760     if (style) FIXME("ignoring style\n");
 761
 762     *LineSpacing = family->tmw.tmAscent + family->tmw.tmDescent + family->tmw.tmExternalLeading;
 763
 764     return Ok;
 765 }
 766
 767 static INT CALLBACK font_has_style_proc(const LOGFONTW *elf,
 768                             const TEXTMETRICW *ntm, DWORD type, LPARAM lParam)
 769 {
 770     INT fontstyle=0;
 771
 772     if (!ntm) return 1;
 773
 774     if (ntm->tmWeight >= FW_BOLD) fontstyle |= FontStyleBold;
 775     if (ntm->tmItalic) fontstyle |= FontStyleItalic;
 776     if (ntm->tmUnderlined) fontstyle |= FontStyleUnderline;
 777     if (ntm->tmStruckOut) fontstyle |= FontStyleStrikeout;
 778
 779     return (INT)lParam != fontstyle;
 780 }
 781
 782 GpStatus WINGDIPAPI GdipIsStyleAvailable(GDIPCONST GpFontFamily* family,
 783         INT style, BOOL* IsStyleAvailable)
 784 {
 785     HDC hdc;
 786
 787     TRACE("%p %d %p\n", family, style, IsStyleAvailable);
 788
 789     if (!(family && IsStyleAvailable))
 790         return InvalidParameter;
 791
 792     *IsStyleAvailable = FALSE;
 793
 794     hdc = GetDC(0);
 795
 796     if(!EnumFontFamiliesW(hdc, family->FamilyName, font_has_style_proc, (LPARAM)style))
 797         *IsStyleAvailable = TRUE;
 798
 799     ReleaseDC(0, hdc);
 800
 801     return Ok;
 802 }
 803
 804 /*****************************************************************************
 805  * GdipGetGenericFontFamilyMonospace [GDIPLUS.@]
 806  *
 807  * Obtains a serif family (Courier New on Windows)
 808  *
 809  * PARAMS
 810  *  **nativeFamily         [I] Where the font will be stored
 811  *
 812  * RETURNS
 813  *  InvalidParameter if nativeFamily is NULL.
 814  *  Ok otherwise.
 815  */
 816 GpStatus WINGDIPAPI GdipGetGenericFontFamilyMonospace(GpFontFamily **nativeFamily)
 817 {
 818     static const WCHAR CourierNew[] = {'C','o','u','r','i','e','r',' ','N','e','w','\0'};
 819
 820     if (nativeFamily == NULL) return InvalidParameter;
 821
 822     return GdipCreateFontFamilyFromName(CourierNew, NULL, nativeFamily);
 823 }
 824
 825 /*****************************************************************************
 826  * GdipGetGenericFontFamilySerif [GDIPLUS.@]
 827  *
 828  * Obtains a serif family (Times New Roman on Windows)
 829  *
 830  * PARAMS
 831  *  **nativeFamily         [I] Where the font will be stored
 832  *
 833  * RETURNS
 834  *  InvalidParameter if nativeFamily is NULL.
 835  *  Ok otherwise.
 836  */
 837 GpStatus WINGDIPAPI GdipGetGenericFontFamilySerif(GpFontFamily **nativeFamily)
 838 {
 839     static const WCHAR TimesNewRoman[] = {'T','i','m','e','s',' ','N','e','w',' ','R','o','m','a','n','\0'};
 840
 841     TRACE("(%p)\n", nativeFamily);
 842
 843     if (nativeFamily == NULL) return InvalidParameter;
 844
 845     return GdipCreateFontFamilyFromName(TimesNewRoman, NULL, nativeFamily);
 846 }
 847
 848 /*****************************************************************************
 849  * GdipGetGenericFontFamilySansSerif [GDIPLUS.@]
 850  *
 851  * Obtains a serif family (Microsoft Sans Serif on Windows)
 852  *
 853  * PARAMS
 854  *  **nativeFamily         [I] Where the font will be stored
 855  *
 856  * RETURNS
 857  *  InvalidParameter if nativeFamily is NULL.
 858  *  Ok otherwise.
 859  */
 860 GpStatus WINGDIPAPI GdipGetGenericFontFamilySansSerif(GpFontFamily **nativeFamily)
 861 {
 862     GpStatus stat;
 863     static const WCHAR MicrosoftSansSerif[] = {'M','i','c','r','o','s','o','f','t',' ','S','a','n','s',' ','S','e','r','i','f','\0'};
 864     static const WCHAR Tahoma[] = {'T','a','h','o','m','a','\0'};
 865
 866     TRACE("(%p)\n", nativeFamily);
 867
 868     if (nativeFamily == NULL) return InvalidParameter;
 869
 870     stat = GdipCreateFontFamilyFromName(MicrosoftSansSerif, NULL, nativeFamily);
 871
 872     if (stat == FontFamilyNotFound)
 873         /* FIXME: Microsoft Sans Serif is not installed on Wine. */
 874         stat = GdipCreateFontFamilyFromName(Tahoma, NULL, nativeFamily);
 875
 876     return stat;
 877 }
 878
 879 /*****************************************************************************
 880  * GdipGetGenericFontFamilySansSerif [GDIPLUS.@]
 881  */
 882 GpStatus WINGDIPAPI GdipNewPrivateFontCollection(GpFontCollection** fontCollection)
 883 {
 884     TRACE("%p\n", fontCollection);
 885
 886     if (!fontCollection)
 887         return InvalidParameter;
 888
 889     *fontCollection = GdipAlloc(sizeof(GpFontCollection));
 890     if (!*fontCollection) return OutOfMemory;
 891
 892     (*fontCollection)->FontFamilies = NULL;
 893     (*fontCollection)->count = 0;
 894     (*fontCollection)->allocated = 0;
 895
 896     TRACE("<-- %p\n", *fontCollection);
 897
 898     return Ok;
 899 }
 900
 901 /*****************************************************************************
 902  * GdipDeletePrivateFontCollection [GDIPLUS.@]
 903  */
 904 GpStatus WINGDIPAPI GdipDeletePrivateFontCollection(GpFontCollection **fontCollection)
 905 {
 906     INT i;
 907
 908     TRACE("%p\n", fontCollection);
 909
 910     if (!fontCollection)
 911         return InvalidParameter;
 912
 913     for (i = 0; i < (*fontCollection)->count; i++) GdipFree((*fontCollection)->FontFamilies[i]);
 914     GdipFree(*fontCollection);
 915
 916     return Ok;
 917 }
 918
 919 /*****************************************************************************
 920  * GdipPrivateAddFontFile [GDIPLUS.@]
 921  */
 922 GpStatus WINGDIPAPI GdipPrivateAddFontFile(GpFontCollection* fontCollection,
 923         GDIPCONST WCHAR* filename)
 924 {
 925     FIXME("stub: %p, %s\n", fontCollection, debugstr_w(filename));
 926
 927     if (!(fontCollection && filename))
 928         return InvalidParameter;
 929
 930     return NotImplemented;
 931 }
 932
 933 /* Copied from msi/font.c */
 934
 935 typedef struct _tagTT_OFFSET_TABLE {
 936     USHORT uMajorVersion;
 937     USHORT uMinorVersion;
 938     USHORT uNumOfTables;
 939     USHORT uSearchRange;
 940     USHORT uEntrySelector;
 941     USHORT uRangeShift;
 942 } TT_OFFSET_TABLE;
 943
 944 typedef struct _tagTT_TABLE_DIRECTORY {
 945     char szTag[4]; /* table name */
 946     ULONG uCheckSum; /* Check sum */
 947     ULONG uOffset; /* Offset from beginning of file */
 948     ULONG uLength; /* length of the table in bytes */
 949 } TT_TABLE_DIRECTORY;
 950
 951 typedef struct _tagTT_NAME_TABLE_HEADER {
 952     USHORT uFSelector; /* format selector. Always 0 */
 953     USHORT uNRCount; /* Name Records count */
 954     USHORT uStorageOffset; /* Offset for strings storage,
 955                             * from start of the table */
 956 } TT_NAME_TABLE_HEADER;
 957
 958 #define NAME_ID_FULL_FONT_NAME  4
 959 #define NAME_ID_VERSION         5
 960
 961 typedef struct _tagTT_NAME_RECORD {
 962     USHORT uPlatformID;
 963     USHORT uEncodingID;
 964     USHORT uLanguageID;
 965     USHORT uNameID;
 966     USHORT uStringLength;
 967     USHORT uStringOffset; /* from start of storage area */
 968 } TT_NAME_RECORD;
 969
 970 #define SWAPWORD(x) MAKEWORD(HIBYTE(x), LOBYTE(x))
 971 #define SWAPLONG(x) MAKELONG(SWAPWORD(HIWORD(x)), SWAPWORD(LOWORD(x)))
 972
 973 /*
 974  * Code based off of code located here
 975  * http://www.codeproject.com/gdi/fontnamefromfile.asp
 976  */
 977 WCHAR *load_ttf_name_id( const char *mem, DWORD_PTR size, DWORD id, WCHAR *ret, DWORD len )
 978 {
 979     const TT_TABLE_DIRECTORY *tblDir;
 980     TT_OFFSET_TABLE ttOffsetTable;
 981     TT_NAME_TABLE_HEADER ttNTHeader;
 982     TT_NAME_RECORD ttRecord;
 983     DWORD ofs, pos;
 984     int i;
 985
 986     if (sizeof(TT_OFFSET_TABLE) > size)
 987         return NULL;
 988     ttOffsetTable = *(TT_OFFSET_TABLE*)mem;
 989     ttOffsetTable.uNumOfTables = SWAPWORD(ttOffsetTable.uNumOfTables);
 990     ttOffsetTable.uMajorVersion = SWAPWORD(ttOffsetTable.uMajorVersion);
 991     ttOffsetTable.uMinorVersion = SWAPWORD(ttOffsetTable.uMinorVersion);
 992
 993     if (ttOffsetTable.uMajorVersion != 1 || ttOffsetTable.uMinorVersion != 0)
 994         return NULL;
 995
 996     pos = sizeof(ttOffsetTable);
 997     for (i = 0; i < ttOffsetTable.uNumOfTables; i++)
 998     {
 999         tblDir = (const TT_TABLE_DIRECTORY*)&mem[pos];
1000         pos += sizeof(*tblDir);
1001         if (memcmp(tblDir->szTag,"name",4)==0)
1002         {
1003             ofs = SWAPLONG(tblDir->uOffset);
1004             break;
1005         }
1006     }
1007     if (i >= ttOffsetTable.uNumOfTables)
1008         return NULL;
1009
1010     pos = ofs + sizeof(ttNTHeader);
1011     if (pos > size)
1012         return NULL;
1013     ttNTHeader = *(TT_NAME_TABLE_HEADER*)&mem[ofs];
1014     ttNTHeader.uNRCount = SWAPWORD(ttNTHeader.uNRCount);
1015     ttNTHeader.uStorageOffset = SWAPWORD(ttNTHeader.uStorageOffset);
1016     for(i=0; i<ttNTHeader.uNRCount; i++)
1017     {
1018         ttRecord = *(TT_NAME_RECORD*)&mem[pos];
1019         pos += sizeof(ttRecord);
1020         if (pos > size)
1021             return NULL;
1022
1023         ttRecord.uNameID = SWAPWORD(ttRecord.uNameID);
1024         if (ttRecord.uNameID == id)
1025         {
1026             const char *buf;
1027
1028             ttRecord.uStringLength = SWAPWORD(ttRecord.uStringLength);
1029             ttRecord.uStringOffset = SWAPWORD(ttRecord.uStringOffset);
1030             if (ofs + ttRecord.uStringOffset + ttNTHeader.uStorageOffset + ttRecord.uStringLength > size)
1031                 return NULL;
1032             buf = mem + ofs + ttRecord.uStringOffset + ttNTHeader.uStorageOffset;
1033             len = MultiByteToWideChar(CP_ACP, 0, buf, ttRecord.uStringLength, ret, len-1);
1034             ret[len] = 0;
1035             return ret;
1036         }
1037     }
1038     return NULL;
1039 }
1040
1041 static INT CALLBACK add_font_proc(const LOGFONTW *lfw, const TEXTMETRICW *ntm, DWORD type, LPARAM lParam);
1042
1043 /*****************************************************************************
1044  * GdipPrivateAddMemoryFont [GDIPLUS.@]
1045  */
1046 GpStatus WINGDIPAPI GdipPrivateAddMemoryFont(GpFontCollection* fontCollection,
1047         GDIPCONST void* memory, INT length)
1048 {
1049     WCHAR buf[32], *name;
1050     DWORD count = 0;
1051     HANDLE font;
1052     TRACE("%p, %p, %d\n", fontCollection, memory, length);
1053
1054     if (!fontCollection || !memory || !length)
1055         return InvalidParameter;
1056
1057     name = load_ttf_name_id(memory, length, NAME_ID_FULL_FONT_NAME, buf, sizeof(buf)/sizeof(*buf));
1058     if (!name)
1059         return OutOfMemory;
1060
1061     font = AddFontMemResourceEx((void*)memory, length, NULL, &count);
1062     TRACE("%s: %p/%u\n", debugstr_w(name), font, count);
1063     if (!font || !count)
1064         return InvalidParameter;
1065
1066     if (count)
1067     {
1068         HDC hdc;
1069         LOGFONTW lfw;
1070
1071         hdc = GetDC(0);
1072
1073         lfw.lfCharSet = DEFAULT_CHARSET;
1074         lstrcpyW(lfw.lfFaceName, name);
1075         lfw.lfPitchAndFamily = 0;
1076
1077         if (!EnumFontFamiliesExW(hdc, &lfw, add_font_proc, (LPARAM)fontCollection, 0))
1078         {
1079             ReleaseDC(0, hdc);
1080             return OutOfMemory;
1081         }
1082
1083         ReleaseDC(0, hdc);
1084     }
1085     return Ok;
1086 }
1087
1088 /*****************************************************************************
1089  * GdipGetFontCollectionFamilyCount [GDIPLUS.@]
1090  */
1091 GpStatus WINGDIPAPI GdipGetFontCollectionFamilyCount(
1092         GpFontCollection* fontCollection, INT* numFound)
1093 {
1094     TRACE("%p, %p\n", fontCollection, numFound);
1095
1096     if (!(fontCollection && numFound))
1097         return InvalidParameter;
1098
1099     *numFound = fontCollection->count;
1100     return Ok;
1101 }
1102
1103 /*****************************************************************************
1104  * GdipGetFontCollectionFamilyList [GDIPLUS.@]
1105  */
1106 GpStatus WINGDIPAPI GdipGetFontCollectionFamilyList(
1107         GpFontCollection* fontCollection, INT numSought,
1108         GpFontFamily* gpfamilies[], INT* numFound)
1109 {
1110     INT i;
1111     GpStatus stat=Ok;
1112
1113     TRACE("%p, %d, %p, %p\n", fontCollection, numSought, gpfamilies, numFound);
1114
1115     if (!(fontCollection && gpfamilies && numFound))
1116         return InvalidParameter;
1117
1118     memset(gpfamilies, 0, sizeof(*gpfamilies) * numSought);
1119
1120     for (i = 0; i < numSought && i < fontCollection->count && stat == Ok; i++)
1121     {
1122         stat = GdipCloneFontFamily(fontCollection->FontFamilies[i], &gpfamilies[i]);
1123     }
1124
1125     if (stat == Ok)
1126         *numFound = i;
1127     else
1128     {
1129         int numToFree=i;
1130         for (i=0; i<numToFree; i++)
1131         {
1132             GdipDeleteFontFamily(gpfamilies[i]);
1133             gpfamilies[i] = NULL;
1134         }
1135     }
1136
1137     return stat;
1138 }
1139
1140 void free_installed_fonts(void)
1141 {
1142     while (installedFontCollection.count)
1143         GdipDeleteFontFamily(installedFontCollection.FontFamilies[--installedFontCollection.count]);
1144     HeapFree(GetProcessHeap(), 0, installedFontCollection.FontFamilies);
1145     installedFontCollection.FontFamilies = NULL;
1146     installedFontCollection.allocated = 0;
1147 }
1148
1149 static INT CALLBACK add_font_proc(const LOGFONTW *lfw, const TEXTMETRICW *ntm,
1150         DWORD type, LPARAM lParam)
1151 {
1152     GpFontCollection* fonts = (GpFontCollection*)lParam;
1153     int i;
1154
1155     if (type == RASTER_FONTTYPE)
1156         return 1;
1157
1158     /* skip duplicates */
1159     for (i=0; i<fonts->count; i++)
1160         if (strcmpiW(lfw->lfFaceName, fonts->FontFamilies[i]->FamilyName) == 0)
1161             return 1;
1162
1163     if (fonts->allocated == fonts->count)
1164     {
1165         INT new_alloc_count = fonts->allocated+50;
1166         GpFontFamily** new_family_list = HeapAlloc(GetProcessHeap(), 0, new_alloc_count*sizeof(void*));
1167
1168         if (!new_family_list)
1169             return 0;
1170
1171         memcpy(new_family_list, fonts->FontFamilies, fonts->count*sizeof(void*));
1172         HeapFree(GetProcessHeap(), 0, fonts->FontFamilies);
1173         fonts->FontFamilies = new_family_list;
1174         fonts->allocated = new_alloc_count;
1175     }
1176
1177     if (GdipCreateFontFamilyFromName(lfw->lfFaceName, NULL, &fonts->FontFamilies[fonts->count]) == Ok)
1178         fonts->count++;
1179     else
1180         return 0;
1181
1182     return 1;
1183 }
1184
1185 GpStatus WINGDIPAPI GdipNewInstalledFontCollection(
1186         GpFontCollection** fontCollection)
1187 {
1188     TRACE("(%p)\n",fontCollection);
1189
1190     if (!fontCollection)
1191         return InvalidParameter;
1192
1193     if (installedFontCollection.count == 0)
1194     {
1195         HDC hdc;
1196         LOGFONTW lfw;
1197
1198         hdc = GetDC(0);
1199
1200         lfw.lfCharSet = DEFAULT_CHARSET;
1201         lfw.lfFaceName[0] = 0;
1202         lfw.lfPitchAndFamily = 0;
1203
1204         if (!EnumFontFamiliesExW(hdc, &lfw, add_font_proc, (LPARAM)&installedFontCollection, 0))
1205         {
1206             free_installed_fonts();
1207             ReleaseDC(0, hdc);
1208             return OutOfMemory;
1209         }
1210
1211         ReleaseDC(0, hdc);
1212     }
1213
1214     *fontCollection = &installedFontCollection;
1215
1216     return Ok;
1217 }