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
 456     TRACE("%p %p %p\n", font, graphics, height);
 457
 458     dpi = GetDeviceCaps(graphics->hdc, LOGPIXELSY);
 459
 460     return GdipGetFontHeightGivenDPI(font, dpi, height);
 461 }
 462
 463 /*******************************************************************************
 464  * GdipGetFontHeightGivenDPI [GDIPLUS.@]
 465  * PARAMS
 466  *  font        [I] Font to retrieve DPI from
 467  *  dpi         [I] DPI to assume
 468  *  height      [O] Return value
 469  *
 470  * RETURNS
 471  *  SUCCESS: Ok
 472  *  FAILURE: InvalidParameter if font or height is NULL
 473  *
 474  * NOTES
 475  *  According to MSDN, the result is (lineSpacing)*(fontSize / emHeight)*dpi
 476  *  (for anything other than unit Pixel)
 477  */
 478 GpStatus WINGDIPAPI GdipGetFontHeightGivenDPI(GDIPCONST GpFont *font, REAL dpi, REAL *height)
 479 {
 480     REAL font_height;
 481
 482     TRACE("%p (%s), %f, %p\n", font,
 483             debugstr_w(font->lfw.lfFaceName), dpi, height);
 484
 485     if (!(font && height)) return InvalidParameter;
 486
 487     font_height = font->line_spacing * (font->emSize / font->height);
 488
 489     switch (font->unit)
 490     {
 491         case UnitPixel:
 492             *height = font_height;
 493             break;
 494         case UnitPoint:
 495             *height = font_height * dpi * inch_per_point;
 496             break;
 497         case UnitInch:
 498             *height = font_height * dpi;
 499             break;
 500         case UnitDocument:
 501             *height = font_height * (dpi / 300.0);
 502             break;
 503         case UnitMillimeter:
 504             *height = font_height * (dpi / mm_per_inch);
 505             break;
 506         default:
 507             FIXME("Unhandled unit type: %d\n", font->unit);
 508             return NotImplemented;
 509     }
 510
 511     return Ok;
 512 }
 513
 514 /***********************************************************************
 515  * Borrowed from GDI32:
 516  *
 517  * Elf is really an ENUMLOGFONTEXW, and ntm is a NEWTEXTMETRICEXW.
 518  *     We have to use other types because of the FONTENUMPROCW definition.
 519  */
 520 static INT CALLBACK is_font_installed_proc(const LOGFONTW *elf,
 521                             const TEXTMETRICW *ntm, DWORD type, LPARAM lParam)
 522 {
 523     if (!ntm)
 524     {
 525         return 1;
 526     }
 527
 528     *(NEWTEXTMETRICW*)lParam = *(const NEWTEXTMETRICW*)ntm;
 529
 530     return 0;
 531 }
 532
 533 static BOOL find_installed_font(const WCHAR *name, NEWTEXTMETRICW *ntm)
 534 {
 535     HDC hdc = GetDC(0);
 536     BOOL ret = FALSE;
 537
 538     if(!EnumFontFamiliesW(hdc, name, is_font_installed_proc, (LPARAM)ntm))
 539         ret = TRUE;
 540
 541     ReleaseDC(0, hdc);
 542     return ret;
 543 }
 544
 545 /*******************************************************************************
 546  * GdipCreateFontFamilyFromName [GDIPLUS.@]
 547  *
 548  * Creates a font family object based on a supplied name
 549  *
 550  * PARAMS
 551  *  name               [I] Name of the font
 552  *  fontCollection     [I] What font collection (if any) the font belongs to (may be NULL)
 553  *  FontFamily         [O] Pointer to the resulting FontFamily object
 554  *
 555  * RETURNS
 556  *  SUCCESS: Ok
 557  *  FAILURE: FamilyNotFound if the requested FontFamily does not exist on the system
 558  *  FAILURE: Invalid parameter if FontFamily or name is NULL
 559  *
 560  * NOTES
 561  *   If fontCollection is NULL then the object is not part of any collection
 562  *
 563  */
 564
 565 GpStatus WINGDIPAPI GdipCreateFontFamilyFromName(GDIPCONST WCHAR *name,
 566                                         GpFontCollection *fontCollection,
 567                                         GpFontFamily **FontFamily)
 568 {
 569     GpFontFamily* ffamily;
 570     NEWTEXTMETRICW ntm;
 571
 572     TRACE("%s, %p %p\n", debugstr_w(name), fontCollection, FontFamily);
 573
 574     if (!(name && FontFamily))
 575         return InvalidParameter;
 576     if (fontCollection)
 577         FIXME("No support for FontCollections yet!\n");
 578
 579     if (!find_installed_font(name, &ntm))
 580         return FontFamilyNotFound;
 581
 582     ffamily = GdipAlloc(sizeof (GpFontFamily));
 583     if (!ffamily) return OutOfMemory;
 584
 585     ffamily->tmw = ntm;
 586     lstrcpynW(ffamily->FamilyName, name, LF_FACESIZE);
 587
 588     *FontFamily = ffamily;
 589
 590     TRACE("<-- %p\n", ffamily);
 591
 592     return Ok;
 593 }
 594
 595 /*******************************************************************************
 596  * GdipCloneFontFamily [GDIPLUS.@]
 597  *
 598  * Creates a deep copy of a Font Family object
 599  *
 600  * PARAMS
 601  *  FontFamily          [I] Font to clone
 602  *  clonedFontFamily    [O] The resulting cloned font
 603  *
 604  * RETURNS
 605  *  SUCCESS: Ok
 606  */
 607 GpStatus WINGDIPAPI GdipCloneFontFamily(GpFontFamily* FontFamily, GpFontFamily** clonedFontFamily)
 608 {
 609     if (!(FontFamily && clonedFontFamily)) return InvalidParameter;
 610
 611     TRACE("stub: %p (%s), %p\n", FontFamily,
 612             debugstr_w(FontFamily->FamilyName), clonedFontFamily);
 613
 614     *clonedFontFamily = GdipAlloc(sizeof(GpFontFamily));
 615     if (!*clonedFontFamily) return OutOfMemory;
 616
 617     (*clonedFontFamily)->tmw = FontFamily->tmw;
 618     lstrcpyW((*clonedFontFamily)->FamilyName, FontFamily->FamilyName);
 619
 620     TRACE("<-- %p\n", *clonedFontFamily);
 621
 622     return Ok;
 623 }
 624
 625 /*******************************************************************************
 626  * GdipGetFamilyName [GDIPLUS.@]
 627  *
 628  * Returns the family name into name
 629  *
 630  * PARAMS
 631  *  *family     [I] Family to retrieve from
 632  *  *name       [O] WCHARS of the family name
 633  *  LANGID      [I] charset
 634  *
 635  * RETURNS
 636  *  SUCCESS: Ok
 637  *  FAILURE: InvalidParameter if family is NULL
 638  *
 639  * NOTES
 640  *   If name is a NULL ptr, then both XP and Vista will crash (so we do as well)
 641  */
 642 GpStatus WINGDIPAPI GdipGetFamilyName (GDIPCONST GpFontFamily *family,
 643                                        WCHAR *name, LANGID language)
 644 {
 645     if (family == NULL)
 646          return InvalidParameter;
 647
 648     TRACE("%p, %p, %d\n", family, name, language);
 649
 650     if (language != LANG_NEUTRAL)
 651         FIXME("No support for handling of multiple languages!\n");
 652
 653     lstrcpynW (name, family->FamilyName, LF_FACESIZE);
 654
 655     return Ok;
 656 }
 657
 658
 659 /*****************************************************************************
 660  * GdipDeleteFontFamily [GDIPLUS.@]
 661  *
 662  * Removes the specified FontFamily
 663  *
 664  * PARAMS
 665  *  *FontFamily         [I] The family to delete
 666  *
 667  * RETURNS
 668  *  SUCCESS: Ok
 669  *  FAILURE: InvalidParameter if FontFamily is NULL.
 670  *
 671  */
 672 GpStatus WINGDIPAPI GdipDeleteFontFamily(GpFontFamily *FontFamily)
 673 {
 674     if (!FontFamily)
 675         return InvalidParameter;
 676     TRACE("Deleting %p (%s)\n", FontFamily, debugstr_w(FontFamily->FamilyName));
 677
 678     GdipFree (FontFamily);
 679
 680     return Ok;
 681 }
 682
 683 GpStatus WINGDIPAPI GdipGetCellAscent(GDIPCONST GpFontFamily *family,
 684         INT style, UINT16* CellAscent)
 685 {
 686     if (!(family && CellAscent)) return InvalidParameter;
 687
 688     *CellAscent = family->tmw.tmAscent;
 689
 690     return Ok;
 691 }
 692
 693 GpStatus WINGDIPAPI GdipGetCellDescent(GDIPCONST GpFontFamily *family,
 694         INT style, UINT16* CellDescent)
 695 {
 696     TRACE("(%p, %d, %p)\n", family, style, CellDescent);
 697
 698     if (!(family && CellDescent)) return InvalidParameter;
 699
 700     *CellDescent = family->tmw.tmDescent;
 701
 702     return Ok;
 703 }
 704
 705 /*******************************************************************************
 706  * GdipGetEmHeight [GDIPLUS.@]
 707  *
 708  * Gets the height of the specified family in EmHeights
 709  *
 710  * PARAMS
 711  *  family      [I] Family to retrieve from
 712  *  style       [I] (optional) style
 713  *  EmHeight    [O] return value
 714  *
 715  * RETURNS
 716  *  SUCCESS: Ok
 717  *  FAILURE: InvalidParameter
 718  */
 719 GpStatus WINGDIPAPI GdipGetEmHeight(GDIPCONST GpFontFamily *family, INT style, UINT16* EmHeight)
 720 {
 721     if (!(family && EmHeight)) return InvalidParameter;
 722
 723     TRACE("%p (%s), %d, %p\n", family, debugstr_w(family->FamilyName), style, EmHeight);
 724
 725     *EmHeight = family->tmw.ntmSizeEM;
 726
 727     return Ok;
 728 }
 729
 730
 731 /*******************************************************************************
 732  * GdipGetLineSpacing [GDIPLUS.@]
 733  *
 734  * Returns the line spacing in design units
 735  *
 736  * PARAMS
 737  *  family      [I] Family to retrieve from
 738  *  style       [I] (Optional) font style
 739  *  LineSpacing [O] Return value
 740  *
 741  * RETURNS
 742  *  SUCCESS: Ok
 743  *  FAILURE: InvalidParameter (family or LineSpacing was NULL)
 744  */
 745 GpStatus WINGDIPAPI GdipGetLineSpacing(GDIPCONST GpFontFamily *family,
 746         INT style, UINT16* LineSpacing)
 747 {
 748     TRACE("%p, %d, %p\n", family, style, LineSpacing);
 749
 750     if (!(family && LineSpacing))
 751         return InvalidParameter;
 752
 753     if (style) FIXME("ignoring style\n");
 754
 755     *LineSpacing = family->tmw.tmAscent + family->tmw.tmDescent + family->tmw.tmExternalLeading;
 756
 757     return Ok;
 758 }
 759
 760 GpStatus WINGDIPAPI GdipIsStyleAvailable(GDIPCONST GpFontFamily* family,
 761         INT style, BOOL* IsStyleAvailable)
 762 {
 763     FIXME("%p %d %p stub!\n", family, style, IsStyleAvailable);
 764
 765     if (!(family && IsStyleAvailable))
 766         return InvalidParameter;
 767
 768     return NotImplemented;
 769 }
 770
 771 /*****************************************************************************
 772  * GdipGetGenericFontFamilyMonospace [GDIPLUS.@]
 773  *
 774  * Obtains a serif family (Courier New on Windows)
 775  *
 776  * PARAMS
 777  *  **nativeFamily         [I] Where the font will be stored
 778  *
 779  * RETURNS
 780  *  InvalidParameter if nativeFamily is NULL.
 781  *  Ok otherwise.
 782  */
 783 GpStatus WINGDIPAPI GdipGetGenericFontFamilyMonospace(GpFontFamily **nativeFamily)
 784 {
 785     static const WCHAR CourierNew[] = {'C','o','u','r','i','e','r',' ','N','e','w','\0'};
 786
 787     if (nativeFamily == NULL) return InvalidParameter;
 788
 789     return GdipCreateFontFamilyFromName(CourierNew, NULL, nativeFamily);
 790 }
 791
 792 /*****************************************************************************
 793  * GdipGetGenericFontFamilySerif [GDIPLUS.@]
 794  *
 795  * Obtains a serif family (Times New Roman on Windows)
 796  *
 797  * PARAMS
 798  *  **nativeFamily         [I] Where the font will be stored
 799  *
 800  * RETURNS
 801  *  InvalidParameter if nativeFamily is NULL.
 802  *  Ok otherwise.
 803  */
 804 GpStatus WINGDIPAPI GdipGetGenericFontFamilySerif(GpFontFamily **nativeFamily)
 805 {
 806     static const WCHAR TimesNewRoman[] = {'T','i','m','e','s',' ','N','e','w',' ','R','o','m','a','n','\0'};
 807
 808     TRACE("(%p)\n", nativeFamily);
 809
 810     if (nativeFamily == NULL) return InvalidParameter;
 811
 812     return GdipCreateFontFamilyFromName(TimesNewRoman, NULL, nativeFamily);
 813 }
 814
 815 /*****************************************************************************
 816  * GdipGetGenericFontFamilySansSerif [GDIPLUS.@]
 817  *
 818  * Obtains a serif family (Microsoft Sans Serif on Windows)
 819  *
 820  * PARAMS
 821  *  **nativeFamily         [I] Where the font will be stored
 822  *
 823  * RETURNS
 824  *  InvalidParameter if nativeFamily is NULL.
 825  *  Ok otherwise.
 826  */
 827 GpStatus WINGDIPAPI GdipGetGenericFontFamilySansSerif(GpFontFamily **nativeFamily)
 828 {
 829     /* FIXME: On Windows this is called Microsoft Sans Serif, this shouldn't
 830      * affect anything */
 831     static const WCHAR MSSansSerif[] = {'M','S',' ','S','a','n','s',' ','S','e','r','i','f','\0'};
 832
 833     TRACE("(%p)\n", nativeFamily);
 834
 835     if (nativeFamily == NULL) return InvalidParameter;
 836
 837     return GdipCreateFontFamilyFromName(MSSansSerif, NULL, nativeFamily);
 838 }
 839
 840 /*****************************************************************************
 841  * GdipGetGenericFontFamilySansSerif [GDIPLUS.@]
 842  */
 843 GpStatus WINGDIPAPI GdipNewPrivateFontCollection(GpFontCollection** fontCollection)
 844 {
 845     TRACE("%p\n", fontCollection);
 846
 847     if (!fontCollection)
 848         return InvalidParameter;
 849
 850     *fontCollection = GdipAlloc(sizeof(GpFontCollection));
 851     if (!*fontCollection) return OutOfMemory;
 852
 853     (*fontCollection)->FontFamilies = NULL;
 854     (*fontCollection)->count = 0;
 855     (*fontCollection)->allocated = 0;
 856
 857     TRACE("<-- %p\n", *fontCollection);
 858
 859     return Ok;
 860 }
 861
 862 /*****************************************************************************
 863  * GdipDeletePrivateFontCollection [GDIPLUS.@]
 864  */
 865 GpStatus WINGDIPAPI GdipDeletePrivateFontCollection(GpFontCollection **fontCollection)
 866 {
 867     INT i;
 868
 869     TRACE("%p\n", fontCollection);
 870
 871     if (!fontCollection)
 872         return InvalidParameter;
 873
 874     for (i = 0; i < (*fontCollection)->count; i++) GdipFree((*fontCollection)->FontFamilies[i]);
 875     GdipFree(*fontCollection);
 876
 877     return Ok;
 878 }
 879
 880 /*****************************************************************************
 881  * GdipPrivateAddFontFile [GDIPLUS.@]
 882  */
 883 GpStatus WINGDIPAPI GdipPrivateAddFontFile(GpFontCollection* fontCollection,
 884         GDIPCONST WCHAR* filename)
 885 {
 886     FIXME("stub: %p, %s\n", fontCollection, debugstr_w(filename));
 887
 888     if (!(fontCollection && filename))
 889         return InvalidParameter;
 890
 891     return NotImplemented;
 892 }
 893
 894 /*****************************************************************************
 895  * GdipPrivateAddMemoryFont [GDIPLUS.@]
 896  */
 897 GpStatus WINGDIPAPI GdipPrivateAddMemoryFont(GpFontCollection* fontCollection,
 898         GDIPCONST void* memory, INT length)
 899 {
 900     FIXME("%p, %p, %d\n", fontCollection, memory, length);
 901
 902     if (!(fontCollection && memory && length))
 903         return InvalidParameter;
 904
 905     return Ok;
 906 }
 907
 908 /*****************************************************************************
 909  * GdipGetFontCollectionFamilyCount [GDIPLUS.@]
 910  */
 911 GpStatus WINGDIPAPI GdipGetFontCollectionFamilyCount(
 912         GpFontCollection* fontCollection, INT* numFound)
 913 {
 914     TRACE("%p, %p\n", fontCollection, numFound);
 915
 916     if (!(fontCollection && numFound))
 917         return InvalidParameter;
 918
 919     *numFound = fontCollection->count;
 920     return Ok;
 921 }
 922
 923 /*****************************************************************************
 924  * GdipGetFontCollectionFamilyList [GDIPLUS.@]
 925  */
 926 GpStatus WINGDIPAPI GdipGetFontCollectionFamilyList(
 927         GpFontCollection* fontCollection, INT numSought,
 928         GpFontFamily* gpfamilies[], INT* numFound)
 929 {
 930     INT i;
 931
 932     TRACE("%p, %d, %p, %p\n", fontCollection, numSought, gpfamilies, numFound);
 933
 934     if (!(fontCollection && gpfamilies && numFound))
 935         return InvalidParameter;
 936
 937     for (i = 0; i < numSought && i < fontCollection->count; i++)
 938     {
 939         gpfamilies[i] = fontCollection->FontFamilies[i];
 940     }
 941     *numFound = i;
 942     return Ok;
 943 }
 944
 945 void free_installed_fonts(void)
 946 {
 947     while (installedFontCollection.count)
 948         GdipDeleteFontFamily(installedFontCollection.FontFamilies[--installedFontCollection.count]);
 949     HeapFree(GetProcessHeap(), 0, installedFontCollection.FontFamilies);
 950     installedFontCollection.FontFamilies = NULL;
 951     installedFontCollection.allocated = 0;
 952 }
 953
 954 static INT CALLBACK add_font_proc(const LOGFONTW *lfw, const TEXTMETRICW *ntm,
 955         DWORD type, LPARAM lParam)
 956 {
 957     GpFontCollection* fonts = (GpFontCollection*)lParam;
 958     int i;
 959
 960     /* skip duplicates */
 961     for (i=0; i<fonts->count; i++)
 962         if (strcmpiW(lfw->lfFaceName, fonts->FontFamilies[i]->FamilyName) == 0)
 963             return 1;
 964
 965     if (fonts->allocated == fonts->count)
 966     {
 967         INT new_alloc_count = fonts->allocated+50;
 968         GpFontFamily** new_family_list = HeapAlloc(GetProcessHeap(), 0, new_alloc_count*sizeof(void*));
 969
 970         if (!new_family_list)
 971             return 0;
 972
 973         memcpy(new_family_list, fonts->FontFamilies, fonts->count*sizeof(void*));
 974         HeapFree(GetProcessHeap(), 0, fonts->FontFamilies);
 975         fonts->FontFamilies = new_family_list;
 976         fonts->allocated = new_alloc_count;
 977     }
 978
 979     if (GdipCreateFontFamilyFromName(lfw->lfFaceName, NULL, &fonts->FontFamilies[fonts->count]) == Ok)
 980         fonts->count++;
 981     else
 982         return 0;
 983
 984     return 1;
 985 }
 986
 987 GpStatus WINGDIPAPI GdipNewInstalledFontCollection(
 988         GpFontCollection** fontCollection)
 989 {
 990     TRACE("(%p)\n",fontCollection);
 991
 992     if (!fontCollection)
 993         return InvalidParameter;
 994
 995     if (installedFontCollection.count == 0)
 996     {
 997         HDC hdc;
 998         LOGFONTW lfw;
 999
1000         hdc = GetDC(0);
1001
1002         lfw.lfCharSet = DEFAULT_CHARSET;
1003         lfw.lfFaceName[0] = 0;
1004         lfw.lfPitchAndFamily = 0;
1005
1006         if (!EnumFontFamiliesExW(hdc, &lfw, add_font_proc, (LPARAM)&installedFontCollection, 0))
1007         {
1008             free_installed_fonts();
1009             ReleaseDC(0, hdc);
1010             return OutOfMemory;
1011         }
1012
1013         ReleaseDC(0, hdc);
1014     }
1015
1016     *fontCollection = &installedFontCollection;
1017
1018     return Ok;
1019 }