reactos/lib/uxtheme/msstyles.c

   1 /*
   2  * Win32 5.1 msstyles theme format
   3  *
   4  * Copyright (C) 2003 Kevin Koltzau
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdarg.h>
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winuser.h"
  28 #define NO_SHLWAPI_REG
  29 #include "shlwapi.h"
  30 #include "winnls.h"
  31 #include "wingdi.h"
  32 #include "uxtheme.h"
  33 #include "tmschema.h"
  34
  35 #include "uxthemedll.h"
  36 #include "msstyles.h"
  37
  38 #include "wine/debug.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(uxtheme);
  41
  42 /***********************************************************************
  43  * Defines and global variables
  44  */
  45
  46 BOOL MSSTYLES_GetNextInteger(LPCWSTR lpStringStart, LPCWSTR lpStringEnd, LPCWSTR *lpValEnd, int *value);
  47 BOOL MSSTYLES_GetNextToken(LPCWSTR lpStringStart, LPCWSTR lpStringEnd, LPCWSTR *lpValEnd, LPWSTR lpBuff, DWORD buffSize);
  48 void MSSTYLES_ParseThemeIni(PTHEME_FILE tf, BOOL setMetrics);
  49
  50 extern HINSTANCE hDllInst;
  51 extern int alphaBlendMode;
  52
  53 #define MSSTYLES_VERSION 0x0003
  54
  55 static const WCHAR szThemesIniResource[] = {
  56     't','h','e','m','e','s','_','i','n','i','\0'
  57 };
  58
  59 PTHEME_FILE tfActiveTheme = NULL;
  60
  61 /***********************************************************************/
  62
  63 /**********************************************************************
  64  *      MSSTYLES_OpenThemeFile
  65  *
  66  * Load and validate a theme
  67  *
  68  * PARAMS
  69  *     lpThemeFile         Path to theme file to load
  70  *     pszColorName        Color name wanted, can be NULL
  71  *     pszSizeName         Size name wanted, can be NULL
  72  *
  73  * NOTES
  74  * If pszColorName or pszSizeName are NULL, the default color/size will be used.
  75  * If one/both are provided, they are validated against valid color/sizes and if
  76  * a match is not found, the function fails.
  77  */
  78 HRESULT MSSTYLES_OpenThemeFile(LPCWSTR lpThemeFile, LPCWSTR pszColorName, LPCWSTR pszSizeName, PTHEME_FILE *tf)
  79 {
  80     HMODULE hTheme;
  81     HRSRC hrsc;
  82     HRESULT hr = S_OK;
  83     static const WCHAR szPackThemVersionResource[] = {
  84         'P','A','C','K','T','H','E','M','_','V','E','R','S','I','O','N', '\0'
  85     };
  86     static const WCHAR szColorNamesResource[] = {
  87         'C','O','L','O','R','N','A','M','E','S','\0'
  88     };
  89     static const WCHAR szSizeNamesResource[] = {
  90         'S','I','Z','E','N','A','M','E','S','\0'
  91     };
  92
  93     WORD version;
  94     DWORD versize;
  95     LPWSTR pszColors;
  96     LPWSTR pszSelectedColor = NULL;
  97     LPWSTR pszSizes;
  98     LPWSTR pszSelectedSize = NULL;
  99     LPWSTR tmp;
 100
 101     TRACE("Opening %s\n", debugstr_w(lpThemeFile));
 102
 103     hTheme = LoadLibraryExW(lpThemeFile, NULL, LOAD_LIBRARY_AS_DATAFILE);
 104
 105     /* Validate that this is really a theme */
 106     if(!hTheme) {
 107         hr = HRESULT_FROM_WIN32(GetLastError());
 108         goto invalid_theme;
 109     }
 110     if(!(hrsc = FindResourceW(hTheme, MAKEINTRESOURCEW(1), szPackThemVersionResource))) {
 111         TRACE("No version resource found\n");
 112         hr = HRESULT_FROM_WIN32(ERROR_BAD_FORMAT);
 113         goto invalid_theme;
 114     }
 115     if((versize = SizeofResource(hTheme, hrsc)) != 2)
 116     {
 117         TRACE("Version resource found, but wrong size: %ld\n", versize);
 118         hr = HRESULT_FROM_WIN32(ERROR_BAD_FORMAT);
 119         goto invalid_theme;
 120     }
 121     version = *(WORD*)LoadResource(hTheme, hrsc);
 122     if(version != MSSTYLES_VERSION)
 123     {
 124         TRACE("Version of theme file is unsupported: 0x%04x\n", version);
 125         hr = HRESULT_FROM_WIN32(ERROR_BAD_FORMAT);
 126         goto invalid_theme;
 127     }
 128
 129     if(!(hrsc = FindResourceW(hTheme, MAKEINTRESOURCEW(1), szColorNamesResource))) {
 130         TRACE("Color names resource not found\n");
 131         hr = HRESULT_FROM_WIN32(ERROR_BAD_FORMAT);
 132         goto invalid_theme;
 133     }
 134     pszColors = (LPWSTR)LoadResource(hTheme, hrsc);
 135
 136     if(!(hrsc = FindResourceW(hTheme, MAKEINTRESOURCEW(1), szSizeNamesResource))) {
 137         TRACE("Size names resource not found\n");
 138         hr = HRESULT_FROM_WIN32(ERROR_BAD_FORMAT);
 139         goto invalid_theme;
 140     }
 141     pszSizes = (LPWSTR)LoadResource(hTheme, hrsc);
 142
 143     /* Validate requested color against whats available from the theme */
 144     if(pszColorName) {
 145         tmp = pszColors;
 146         while(*tmp) {
 147             if(!lstrcmpiW(pszColorName, tmp)) {
 148                 pszSelectedColor = tmp;
 149                 break;
 150             }
 151             tmp += lstrlenW(tmp)+1;
 152         }
 153     }
 154     else
 155         pszSelectedColor = pszColors; /* Use the default color */
 156
 157     /* Validate requested size against whats available from the theme */
 158     if(pszSizeName) {
 159         tmp = pszSizes;
 160         while(*tmp) {
 161             if(!lstrcmpiW(pszSizeName, tmp)) {
 162                 pszSelectedSize = tmp;
 163                 break;
 164             }
 165             tmp += lstrlenW(tmp)+1;
 166         }
 167     }
 168     else
 169         pszSelectedSize = pszSizes; /* Use the default size */
 170
 171     if(!pszSelectedColor || !pszSelectedSize) {
 172         TRACE("Requested color/size (%s/%s) not found in theme\n",
 173               debugstr_w(pszColorName), debugstr_w(pszSizeName));
 174         hr = E_PROP_ID_UNSUPPORTED;
 175         goto invalid_theme;
 176     }
 177
 178     *tf = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(THEME_FILE));
 179     (*tf)->hTheme = hTheme;
 180
 181     GetFullPathNameW(lpThemeFile, MAX_PATH, (*tf)->szThemeFile, NULL);
 182
 183     (*tf)->pszAvailColors = pszColors;
 184     (*tf)->pszAvailSizes = pszSizes;
 185     (*tf)->pszSelectedColor = pszSelectedColor;
 186     (*tf)->pszSelectedSize = pszSelectedSize;
 187     (*tf)->dwRefCount = 1;
 188     return S_OK;
 189
 190 invalid_theme:
 191     if(hTheme) FreeLibrary(hTheme);
 192     return hr;
 193 }
 194
 195 /***********************************************************************
 196  *      MSSTYLES_CloseThemeFile
 197  *
 198  * Close theme file and free resources
 199  */
 200 void MSSTYLES_CloseThemeFile(PTHEME_FILE tf)
 201 {
 202     if(tf) {
 203         tf->dwRefCount--;
 204         if(!tf->dwRefCount) {
 205             if(tf->hTheme) FreeLibrary(tf->hTheme);
 206             if(tf->classes) {
 207                 while(tf->classes) {
 208                     PTHEME_CLASS pcls = tf->classes;
 209                     tf->classes = pcls->next;
 210                     while(pcls->partstate) {
 211                         PTHEME_PARTSTATE ps = pcls->partstate;
 212                         pcls->partstate = ps->next;
 213                         HeapFree(GetProcessHeap(), 0, ps);
 214                     }
 215                     HeapFree(GetProcessHeap(), 0, pcls);
 216                 }
 217             }
 218             while (tf->images)
 219             {
 220                 PTHEME_IMAGE img = tf->images;
 221                 tf->images = img->next;
 222                 DeleteObject (img->image);
 223                 HeapFree (GetProcessHeap(), 0, img);
 224             }
 225             HeapFree(GetProcessHeap(), 0, tf);
 226         }
 227     }
 228 }
 229
 230 /***********************************************************************
 231  *      MSSTYLES_SetActiveTheme
 232  *
 233  * Set the current active theme
 234  */
 235 HRESULT MSSTYLES_SetActiveTheme(PTHEME_FILE tf, BOOL setMetrics)
 236 {
 237     if(tfActiveTheme)
 238         MSSTYLES_CloseThemeFile(tfActiveTheme);
 239     tfActiveTheme = tf;
 240     if (tfActiveTheme)
 241     {
 242         tfActiveTheme->dwRefCount++;
 243         if(!tfActiveTheme->classes)
 244             MSSTYLES_ParseThemeIni(tfActiveTheme, setMetrics);
 245     }
 246     return S_OK;
 247 }
 248
 249 /***********************************************************************
 250  *      MSSTYLES_GetThemeIni
 251  *
 252  * Retrieves themes.ini from a theme
 253  */
 254 PUXINI_FILE MSSTYLES_GetThemeIni(PTHEME_FILE tf)
 255 {
 256     return UXINI_LoadINI(tf->hTheme, szThemesIniResource);
 257 }
 258
 259 /***********************************************************************
 260  *      MSSTYLES_GetActiveThemeIni
 261  *
 262  * Retrieve the ini file for the selected color/style
 263  */
 264 static PUXINI_FILE MSSTYLES_GetActiveThemeIni(PTHEME_FILE tf)
 265 {
 266     static const WCHAR szFileResNamesResource[] = {
 267         'F','I','L','E','R','E','S','N','A','M','E','S','\0'
 268     };
 269     DWORD dwColorCount = 0;
 270     DWORD dwSizeCount = 0;
 271     DWORD dwColorNum = 0;
 272     DWORD dwSizeNum = 0;
 273     DWORD i;
 274     DWORD dwResourceIndex;
 275     LPWSTR tmp;
 276     HRSRC hrsc;
 277
 278     /* Count the number of available colors & styles, and determine the index number
 279        of the color/style we are interested in
 280     */
 281     tmp = tf->pszAvailColors;
 282     while(*tmp) {
 283         if(!lstrcmpiW(tf->pszSelectedColor, tmp))
 284             dwColorNum = dwColorCount;
 285         tmp += lstrlenW(tmp)+1;
 286         dwColorCount++;
 287     }
 288     tmp = tf->pszAvailSizes;
 289     while(*tmp) {
 290         if(!lstrcmpiW(tf->pszSelectedSize, tmp))
 291             dwSizeNum = dwSizeCount;
 292         tmp += lstrlenW(tmp)+1;
 293         dwSizeCount++;
 294     }
 295
 296     if(!(hrsc = FindResourceW(tf->hTheme, MAKEINTRESOURCEW(1), szFileResNamesResource))) {
 297         TRACE("FILERESNAMES map not found\n");
 298         return NULL;
 299     }
 300     tmp = (LPWSTR)LoadResource(tf->hTheme, hrsc);
 301     dwResourceIndex = (dwSizeCount * dwColorNum) + dwSizeNum;
 302     for(i=0; i < dwResourceIndex; i++) {
 303         tmp += lstrlenW(tmp)+1;
 304     }
 305     return UXINI_LoadINI(tf->hTheme, tmp);
 306 }
 307
 308
 309 /***********************************************************************
 310  *      MSSTYLES_ParseIniSectionName
 311  *
 312  * Parse an ini section name into its component parts
 313  * Valid formats are:
 314  * [classname]
 315  * [classname(state)]
 316  * [classname.part]
 317  * [classname.part(state)]
 318  * [application::classname]
 319  * [application::classname(state)]
 320  * [application::classname.part]
 321  * [application::classname.part(state)]
 322  *
 323  * PARAMS
 324  *     lpSection           Section name
 325  *     dwLen               Length of section name
 326  *     szAppName           Location to store application name
 327  *     szClassName         Location to store class name
 328  *     iPartId             Location to store part id
 329  *     iStateId            Location to store state id
 330  */
 331 static BOOL MSSTYLES_ParseIniSectionName(LPCWSTR lpSection, DWORD dwLen, LPWSTR szAppName, LPWSTR szClassName, int *iPartId, int *iStateId)
 332 {
 333     WCHAR sec[255];
 334     WCHAR part[60] = {'\0'};
 335     WCHAR state[60] = {'\0'};
 336     LPWSTR tmp;
 337     LPWSTR comp;
 338     lstrcpynW(sec, lpSection, min(dwLen+1, sizeof(sec)/sizeof(sec[0])));
 339
 340     *szAppName = 0;
 341     *szClassName = 0;
 342     *iPartId = 0;
 343     *iStateId = 0;
 344     comp = sec;
 345     /* Get the application name */
 346     tmp = StrChrW(comp, ':');
 347     if(tmp) {
 348         *tmp++ = 0;
 349         tmp++;
 350         lstrcpynW(szAppName, comp, MAX_THEME_APP_NAME);
 351         comp = tmp;
 352     }
 353
 354     tmp = StrChrW(comp, '.');
 355     if(tmp) {
 356         *tmp++ = 0;
 357         lstrcpynW(szClassName, comp, MAX_THEME_CLASS_NAME);
 358         comp = tmp;
 359         /* now get the part & state */
 360         tmp = StrChrW(comp, '(');
 361         if(tmp) {
 362             *tmp++ = 0;
 363             lstrcpynW(part, comp, sizeof(part)/sizeof(part[0]));
 364             comp = tmp;
 365             /* now get the state */
 366             *StrChrW(comp, ')') = 0;
 367             lstrcpynW(state, comp, sizeof(state)/sizeof(state[0]));
 368         }
 369         else {
 370             lstrcpynW(part, comp, sizeof(part)/sizeof(part[0]));
 371         }
 372     }
 373     else {
 374         tmp = StrChrW(comp, '(');
 375         if(tmp) {
 376             *tmp++ = 0;
 377             lstrcpynW(szClassName, comp, MAX_THEME_CLASS_NAME);
 378             comp = tmp;
 379             /* now get the state */
 380             *StrChrW(comp, ')') = 0;
 381             lstrcpynW(state, comp, sizeof(state)/sizeof(state[0]));
 382         }
 383         else {
 384             lstrcpynW(szClassName, comp, MAX_THEME_CLASS_NAME);
 385         }
 386     }
 387     if(!*szClassName) return FALSE;
 388     return MSSTYLES_LookupPartState(szClassName, part[0]?part:NULL, state[0]?state:NULL, iPartId, iStateId);
 389 }
 390
 391 /***********************************************************************
 392  *      MSSTYLES_FindClass
 393  *
 394  * Find a class
 395  *
 396  * PARAMS
 397  *     tf                  Theme file
 398  *     pszAppName          App name to find
 399  *     pszClassName        Class name to find
 400  *
 401  * RETURNS
 402  *  The class found, or NULL
 403  */
 404 PTHEME_CLASS MSSTYLES_FindClass(PTHEME_FILE tf, LPCWSTR pszAppName, LPCWSTR pszClassName)
 405 {
 406     PTHEME_CLASS cur = tf->classes;
 407     while(cur) {
 408         if(!pszAppName) {
 409             if(!*cur->szAppName && !lstrcmpiW(pszClassName, cur->szClassName))
 410                 return cur;
 411         }
 412         else {
 413             if(!lstrcmpiW(pszAppName, cur->szAppName) && !lstrcmpiW(pszClassName, cur->szClassName))
 414                 return cur;
 415         }
 416         cur = cur->next;
 417     }
 418     return NULL;
 419 }
 420
 421 /***********************************************************************
 422  *      MSSTYLES_AddClass
 423  *
 424  * Add a class to a theme file
 425  *
 426  * PARAMS
 427  *     tf                  Theme file
 428  *     pszAppName          App name to add
 429  *     pszClassName        Class name to add
 430  *
 431  * RETURNS
 432  *  The class added, or a class previously added with the same name
 433  */
 434 static PTHEME_CLASS MSSTYLES_AddClass(PTHEME_FILE tf, LPCWSTR pszAppName, LPCWSTR pszClassName)
 435 {
 436     PTHEME_CLASS cur = MSSTYLES_FindClass(tf, pszAppName, pszClassName);
 437     if(cur) return cur;
 438
 439     cur = HeapAlloc(GetProcessHeap(), 0, sizeof(THEME_CLASS));
 440     cur->hTheme = tf->hTheme;
 441     lstrcpyW(cur->szAppName, pszAppName);
 442     lstrcpyW(cur->szClassName, pszClassName);
 443     cur->next = tf->classes;
 444     cur->partstate = NULL;
 445     cur->overrides = NULL;
 446     tf->classes = cur;
 447     return cur;
 448 }
 449
 450 /***********************************************************************
 451  *      MSSTYLES_FindPartState
 452  *
 453  * Find a part/state
 454  *
 455  * PARAMS
 456  *     tc                  Class to search
 457  *     iPartId             Part ID to find
 458  *     iStateId            State ID to find
 459  *     tcNext              Receives the next class in the override chain
 460  *
 461  * RETURNS
 462  *  The part/state found, or NULL
 463  */
 464 PTHEME_PARTSTATE MSSTYLES_FindPartState(PTHEME_CLASS tc, int iPartId, int iStateId, PTHEME_CLASS *tcNext)
 465 {
 466     PTHEME_PARTSTATE cur = tc->partstate;
 467     while(cur) {
 468         if(cur->iPartId == iPartId && cur->iStateId == iStateId) {
 469             if(tcNext) *tcNext = tc->overrides;
 470             return cur;
 471         }
 472         cur = cur->next;
 473     }
 474     if(tc->overrides) return MSSTYLES_FindPartState(tc->overrides, iPartId, iStateId, tcNext);
 475     return NULL;
 476 }
 477
 478 /***********************************************************************
 479  *      MSSTYLES_AddPartState
 480  *
 481  * Add a part/state to a class
 482  *
 483  * PARAMS
 484  *     tc                  Theme class
 485  *     iPartId             Part ID to add
 486  *     iStateId            State ID to add
 487  *
 488  * RETURNS
 489  *  The part/state added, or a part/state previously added with the same IDs
 490  */
 491 static PTHEME_PARTSTATE MSSTYLES_AddPartState(PTHEME_CLASS tc, int iPartId, int iStateId)
 492 {
 493     PTHEME_PARTSTATE cur = MSSTYLES_FindPartState(tc, iPartId, iStateId, NULL);
 494     if(cur) return cur;
 495
 496     cur = HeapAlloc(GetProcessHeap(), 0, sizeof(THEME_PARTSTATE));
 497     cur->iPartId = iPartId;
 498     cur->iStateId = iStateId;
 499     cur->properties = NULL;
 500     cur->next = tc->partstate;
 501     tc->partstate = cur;
 502     return cur;
 503 }
 504
 505 /***********************************************************************
 506  *      MSSTYLES_LFindProperty
 507  *
 508  * Find a property within a property list
 509  *
 510  * PARAMS
 511  *     tp                  property list to scan
 512  *     iPropertyPrimitive  Type of value expected
 513  *     iPropertyId         ID of the required value
 514  *
 515  * RETURNS
 516  *  The property found, or NULL
 517  */
 518 static PTHEME_PROPERTY MSSTYLES_LFindProperty(PTHEME_PROPERTY tp, int iPropertyPrimitive, int iPropertyId)
 519 {
 520     PTHEME_PROPERTY cur = tp;
 521     while(cur) {
 522         if(cur->iPropertyId == iPropertyId) {
 523             if(cur->iPrimitiveType == iPropertyPrimitive) {
 524                 return cur;
 525             }
 526             else {
 527                 if(!iPropertyPrimitive)
 528                     return cur;
 529                 return NULL;
 530             }
 531         }
 532         cur = cur->next;
 533     }
 534     return NULL;
 535 }
 536
 537 /***********************************************************************
 538  *      MSSTYLES_PSFindProperty
 539  *
 540  * Find a value within a part/state
 541  *
 542  * PARAMS
 543  *     ps                  Part/state to search
 544  *     iPropertyPrimitive  Type of value expected
 545  *     iPropertyId         ID of the required value
 546  *
 547  * RETURNS
 548  *  The property found, or NULL
 549  */
 550 static inline PTHEME_PROPERTY MSSTYLES_PSFindProperty(PTHEME_PARTSTATE ps, int iPropertyPrimitive, int iPropertyId)
 551 {
 552     return MSSTYLES_LFindProperty(ps->properties, iPropertyPrimitive, iPropertyId);
 553 }
 554
 555 /***********************************************************************
 556  *      MSSTYLES_FFindMetric
 557  *
 558  * Find a metric property for a theme file
 559  *
 560  * PARAMS
 561  *     tf                  Theme file
 562  *     iPropertyPrimitive  Type of value expected
 563  *     iPropertyId         ID of the required value
 564  *
 565  * RETURNS
 566  *  The property found, or NULL
 567  */
 568 static inline PTHEME_PROPERTY MSSTYLES_FFindMetric(PTHEME_FILE tf, int iPropertyPrimitive, int iPropertyId)
 569 {
 570     return MSSTYLES_LFindProperty(tf->metrics, iPropertyPrimitive, iPropertyId);
 571 }
 572
 573 /***********************************************************************
 574  *      MSSTYLES_FindMetric
 575  *
 576  * Find a metric property for the current installed theme
 577  *
 578  * PARAMS
 579  *     tf                  Theme file
 580  *     iPropertyPrimitive  Type of value expected
 581  *     iPropertyId         ID of the required value
 582  *
 583  * RETURNS
 584  *  The property found, or NULL
 585  */
 586 PTHEME_PROPERTY MSSTYLES_FindMetric(int iPropertyPrimitive, int iPropertyId)
 587 {
 588     if(!tfActiveTheme) return NULL;
 589     return MSSTYLES_FFindMetric(tfActiveTheme, iPropertyPrimitive, iPropertyId);
 590 }
 591
 592 /***********************************************************************
 593  *      MSSTYLES_AddProperty
 594  *
 595  * Add a property to a part/state
 596  *
 597  * PARAMS
 598  *     ps                  Part/state
 599  *     iPropertyPrimitive  Primitive type of the property
 600  *     iPropertyId         ID of the property
 601  *     lpValue             Raw value (non-NULL terminated)
 602  *     dwValueLen          Length of the value
 603  *
 604  * RETURNS
 605  *  The property added, or a property previously added with the same IDs
 606  */
 607 static PTHEME_PROPERTY MSSTYLES_AddProperty(PTHEME_PARTSTATE ps, int iPropertyPrimitive, int iPropertyId, LPCWSTR lpValue, DWORD dwValueLen, BOOL isGlobal)
 608 {
 609     PTHEME_PROPERTY cur = MSSTYLES_PSFindProperty(ps, iPropertyPrimitive, iPropertyId);
 610     /* Should duplicate properties overwrite the original, or be ignored? */
 611     if(cur) return cur;
 612
 613     cur = HeapAlloc(GetProcessHeap(), 0, sizeof(THEME_PROPERTY));
 614     cur->iPrimitiveType = iPropertyPrimitive;
 615     cur->iPropertyId = iPropertyId;
 616     cur->lpValue = lpValue;
 617     cur->dwValueLen = dwValueLen;
 618
 619     if(ps->iStateId)
 620         cur->origin = PO_STATE;
 621     else if(ps->iPartId)
 622         cur->origin = PO_PART;
 623     else if(isGlobal)
 624         cur->origin = PO_GLOBAL;
 625     else
 626         cur->origin = PO_CLASS;
 627
 628     cur->next = ps->properties;
 629     ps->properties = cur;
 630     return cur;
 631 }
 632
 633 /***********************************************************************
 634  *      MSSTYLES_AddMetric
 635  *
 636  * Add a property to a part/state
 637  *
 638  * PARAMS
 639  *     tf                  Theme file
 640  *     iPropertyPrimitive  Primitive type of the property
 641  *     iPropertyId         ID of the property
 642  *     lpValue             Raw value (non-NULL terminated)
 643  *     dwValueLen          Length of the value
 644  *
 645  * RETURNS
 646  *  The property added, or a property previously added with the same IDs
 647  */
 648 static PTHEME_PROPERTY MSSTYLES_AddMetric(PTHEME_FILE tf, int iPropertyPrimitive, int iPropertyId, LPCWSTR lpValue, DWORD dwValueLen)
 649 {
 650     PTHEME_PROPERTY cur = MSSTYLES_FFindMetric(tf, iPropertyPrimitive, iPropertyId);
 651     /* Should duplicate properties overwrite the original, or be ignored? */
 652     if(cur) return cur;
 653
 654     cur = HeapAlloc(GetProcessHeap(), 0, sizeof(THEME_PROPERTY));
 655     cur->iPrimitiveType = iPropertyPrimitive;
 656     cur->iPropertyId = iPropertyId;
 657     cur->lpValue = lpValue;
 658     cur->dwValueLen = dwValueLen;
 659
 660     cur->origin = PO_GLOBAL;
 661
 662     cur->next = tf->metrics;
 663     tf->metrics = cur;
 664     return cur;
 665 }
 666
 667 /***********************************************************************
 668  *      MSSTYLES_ParseThemeIni
 669  *
 670  * Parse the theme ini for the selected color/style
 671  *
 672  * PARAMS
 673  *     tf                  Theme to parse
 674  */
 675 void MSSTYLES_ParseThemeIni(PTHEME_FILE tf, BOOL setMetrics)
 676 {
 677     static const WCHAR szSysMetrics[] = {'S','y','s','M','e','t','r','i','c','s','\0'};
 678     static const WCHAR szGlobals[] = {'g','l','o','b','a','l','s','\0'};
 679     PTHEME_CLASS cls;
 680     PTHEME_CLASS globals;
 681     PTHEME_PARTSTATE ps;
 682     PUXINI_FILE ini;
 683     WCHAR szAppName[MAX_THEME_APP_NAME];
 684     WCHAR szClassName[MAX_THEME_CLASS_NAME];
 685     WCHAR szPropertyName[MAX_THEME_VALUE_NAME];
 686     int iPartId;
 687     int iStateId;
 688     int iPropertyPrimitive;
 689     int iPropertyId;
 690     DWORD dwLen;
 691     LPCWSTR lpName;
 692     DWORD dwValueLen;
 693     LPCWSTR lpValue;
 694
 695     ini = MSSTYLES_GetActiveThemeIni(tf);
 696
 697     while((lpName=UXINI_GetNextSection(ini, &dwLen))) {
 698         if(CompareStringW(LOCALE_SYSTEM_DEFAULT, NORM_IGNORECASE, lpName, dwLen, szSysMetrics, -1) == CSTR_EQUAL) {
 699             int colorCount = 0;
 700             int colorElements[TMT_LASTCOLOR-TMT_FIRSTCOLOR];
 701             COLORREF colorRgb[TMT_LASTCOLOR-TMT_FIRSTCOLOR];
 702             LPCWSTR lpValueEnd;
 703
 704             while((lpName=UXINI_GetNextValue(ini, &dwLen, &lpValue, &dwValueLen))) {
 705                 lstrcpynW(szPropertyName, lpName, min(dwLen+1, sizeof(szPropertyName)/sizeof(szPropertyName[0])));
 706                 if(MSSTYLES_LookupProperty(szPropertyName, &iPropertyPrimitive, &iPropertyId)) {
 707                     if(iPropertyId >= TMT_FIRSTCOLOR && iPropertyId <= TMT_LASTCOLOR) {
 708                         int r,g,b;
 709                         lpValueEnd = lpValue + dwValueLen;
 710                         MSSTYLES_GetNextInteger(lpValue, lpValueEnd, &lpValue, &r);
 711                         MSSTYLES_GetNextInteger(lpValue, lpValueEnd, &lpValue, &g);
 712                         if(MSSTYLES_GetNextInteger(lpValue, lpValueEnd, &lpValue, &b)) {
 713                             colorElements[colorCount] = iPropertyId - TMT_FIRSTCOLOR;
 714                             colorRgb[colorCount++] = RGB(r,g,b);
 715                         }
 716                         else {
 717                             FIXME("Invalid color value for %s\n", debugstr_w(szPropertyName));
 718                         }
 719                     }
 720                     else if (setMetrics && (iPropertyId == TMT_FLATMENUS)) {
 721                         BOOL flatMenus = (*lpValue == 'T') || (*lpValue == 't');
 722                         SystemParametersInfoW (SPI_SETFLATMENU, 0, (PVOID)(INT_PTR)flatMenus, 0);
 723                     }
 724                     /* Catch all metrics, including colors */
 725                     MSSTYLES_AddMetric(tf, iPropertyPrimitive, iPropertyId, lpValue, dwValueLen);
 726                 }
 727                 else {
 728                     TRACE("Unknown system metric %s\n", debugstr_w(szPropertyName));
 729                 }
 730             }
 731             if (setMetrics && (colorCount > 0))
 732                 SetSysColors(colorCount, colorElements, colorRgb);
 733             continue;
 734         }
 735         if(MSSTYLES_ParseIniSectionName(lpName, dwLen, szAppName, szClassName, &iPartId, &iStateId)) {
 736             BOOL isGlobal = FALSE;
 737             if(!lstrcmpiW(szClassName, szGlobals)) {
 738                 isGlobal = TRUE;
 739             }
 740             cls = MSSTYLES_AddClass(tf, szAppName, szClassName);
 741             ps = MSSTYLES_AddPartState(cls, iPartId, iStateId);
 742
 743             while((lpName=UXINI_GetNextValue(ini, &dwLen, &lpValue, &dwValueLen))) {
 744                 lstrcpynW(szPropertyName, lpName, min(dwLen+1, sizeof(szPropertyName)/sizeof(szPropertyName[0])));
 745                 if(MSSTYLES_LookupProperty(szPropertyName, &iPropertyPrimitive, &iPropertyId)) {
 746                     MSSTYLES_AddProperty(ps, iPropertyPrimitive, iPropertyId, lpValue, dwValueLen, isGlobal);
 747                 }
 748                 else {
 749                     TRACE("Unknown property %s\n", debugstr_w(szPropertyName));
 750                 }
 751             }
 752         }
 753     }
 754
 755     /* App/Class combos override values defined by the base class, map these overrides */
 756     globals = MSSTYLES_FindClass(tf, NULL, szGlobals);
 757     cls = tf->classes;
 758     while(cls) {
 759         if(*cls->szAppName) {
 760             cls->overrides = MSSTYLES_FindClass(tf, NULL, cls->szClassName);
 761             if(!cls->overrides) {
 762                 TRACE("No overrides found for app %s class %s\n", debugstr_w(cls->szAppName), debugstr_w(cls->szClassName));
 763             }
 764             else {
 765                 cls->overrides = globals;
 766             }
 767         }
 768         else {
 769             /* Everything overrides globals..except globals */
 770             if(cls != globals) cls->overrides = globals;
 771         }
 772         cls = cls->next;
 773     }
 774     UXINI_CloseINI(ini);
 775
 776     if(!tf->classes) {
 777         ERR("Failed to parse theme ini\n");
 778     }
 779 }
 780
 781 /***********************************************************************
 782  *      MSSTYLES_OpenThemeClass
 783  *
 784  * Open a theme class, uses the current active theme
 785  *
 786  * PARAMS
 787  *     pszAppName          Application name, for theme styles specific
 788  *                         to a particular application
 789  *     pszClassList        List of requested classes, semicolon delimited
 790  */
 791 PTHEME_CLASS MSSTYLES_OpenThemeClass(LPCWSTR pszAppName, LPCWSTR pszClassList)
 792 {
 793     PTHEME_CLASS cls = NULL;
 794     WCHAR szClassName[MAX_THEME_CLASS_NAME];
 795     LPCWSTR start;
 796     LPCWSTR end;
 797     DWORD len;
 798
 799     if(!tfActiveTheme) {
 800         TRACE("there is no active theme\n");
 801         return NULL;
 802     }
 803     if(!tfActiveTheme->classes) {
 804         return NULL;
 805     }
 806
 807     start = pszClassList;
 808     while((end = StrChrW(start, ';'))) {
 809         len = end-start;
 810         lstrcpynW(szClassName, start, min(len+1, sizeof(szClassName)/sizeof(szClassName[0])));
 811         start = end+1;
 812         cls = MSSTYLES_FindClass(tfActiveTheme, pszAppName, szClassName);
 813         if(cls) break;
 814     }
 815     if(!cls && *start) {
 816         lstrcpynW(szClassName, start, sizeof(szClassName)/sizeof(szClassName[0]));
 817         cls = MSSTYLES_FindClass(tfActiveTheme, pszAppName, szClassName);
 818     }
 819     if(cls) {
 820         TRACE("Opened app %s, class %s from list %s\n", debugstr_w(cls->szAppName), debugstr_w(cls->szClassName), debugstr_w(pszClassList));
 821         cls->tf = tfActiveTheme;
 822         cls->tf->dwRefCount++;
 823     }
 824     return cls;
 825 }
 826
 827 /***********************************************************************
 828  *      MSSTYLES_CloseThemeClass
 829  *
 830  * Close a theme class
 831  *
 832  * PARAMS
 833  *     tc                  Theme class to close
 834  *
 835  * NOTES
 836  *  The MSSTYLES_CloseThemeFile decreases the refcount of the owning
 837  *  theme file and cleans it up, if needed.
 838  */
 839 HRESULT MSSTYLES_CloseThemeClass(PTHEME_CLASS tc)
 840 {
 841     MSSTYLES_CloseThemeFile (tc->tf);
 842     return S_OK;
 843 }
 844
 845 /***********************************************************************
 846  *      MSSTYLES_FindProperty
 847  *
 848  * Locate a property in a class. Part and state IDs will be used as a
 849  * preference, but may be ignored in the attempt to locate the property.
 850  * Will scan the entire chain of overrides for this class.
 851  */
 852 PTHEME_PROPERTY MSSTYLES_FindProperty(PTHEME_CLASS tc, int iPartId, int iStateId, int iPropertyPrimitive, int iPropertyId)
 853 {
 854     PTHEME_CLASS next = tc;
 855     PTHEME_PARTSTATE ps;
 856     PTHEME_PROPERTY tp;
 857
 858     TRACE("(%p, %d, %d, %d)\n", tc, iPartId, iStateId, iPropertyId);
 859      /* Try and find an exact match on part & state */
 860     while(next && (ps = MSSTYLES_FindPartState(next, iPartId, iStateId, &next))) {
 861         if((tp = MSSTYLES_PSFindProperty(ps, iPropertyPrimitive, iPropertyId))) {
 862             return tp;
 863         }
 864     }
 865     /* If that fails, and we didn't already try it, search for just part */
 866     if(iStateId != 0)
 867         iStateId = 0;
 868     /* As a last ditch attempt..go for just class */
 869     else if(iPartId != 0)
 870         iPartId = 0;
 871     else
 872         return NULL;
 873
 874     if((tp = MSSTYLES_FindProperty(tc, iPartId, iStateId, iPropertyPrimitive, iPropertyId)))
 875         return tp;
 876     return NULL;
 877 }
 878
 879 /* Prepare a bitmap to be used for alpha blending */
 880 static BOOL prepare_alpha (HBITMAP bmp, BOOL* hasAlpha)
 881 {
 882     DIBSECTION dib;
 883     int n;
 884     BYTE* p;
 885
 886     *hasAlpha = FALSE;
 887
 888     if (!bmp || GetObjectW( bmp, sizeof(dib), &dib ) != sizeof(dib))
 889         return FALSE;
 890
 891     if(dib.dsBm.bmBitsPixel != 32)
 892         /* nothing to do */
 893         return TRUE;
 894
 895     *hasAlpha = TRUE;
 896     p = (BYTE*)dib.dsBm.bmBits;
 897     n = abs(dib.dsBmih.biHeight) * dib.dsBmih.biWidth;
 898     /* AlphaBlend() wants premultiplied alpha, so do that now */
 899     while (n-- > 0)
 900     {
 901         int a = p[3]+1;
 902         p[0] = (p[0] * a) >> 8;
 903         p[1] = (p[1] * a) >> 8;
 904         p[2] = (p[2] * a) >> 8;
 905         p += 4;
 906     }
 907
 908     return TRUE;
 909 }
 910
 911 HBITMAP MSSTYLES_LoadBitmap (PTHEME_CLASS tc, LPCWSTR lpFilename, BOOL* hasAlpha)
 912 {
 913     WCHAR szFile[MAX_PATH];
 914     LPWSTR tmp;
 915     PTHEME_IMAGE img;
 916     lstrcpynW(szFile, lpFilename, sizeof(szFile)/sizeof(szFile[0]));
 917     tmp = szFile;
 918     do {
 919         if(*tmp == '\\') *tmp = '_';
 920         if(*tmp == '/') *tmp = '_';
 921         if(*tmp == '.') *tmp = '_';
 922     } while(*tmp++);
 923
 924     /* Try to locate in list of loaded images */
 925     img = tc->tf->images;
 926     while (img)
 927     {
 928         if (lstrcmpiW (szFile, img->name) == 0)
 929         {
 930             TRACE ("found %p %s: %p\n", img, debugstr_w (img->name), img->image);
 931             *hasAlpha = img->hasAlpha;
 932             return img->image;
 933         }
 934         img = img->next;
 935     }
 936     /* Not found? Load from resources */
 937     img = HeapAlloc (GetProcessHeap(), 0, sizeof (THEME_IMAGE));
 938     img->image = LoadImageW(tc->hTheme, szFile, IMAGE_BITMAP, 0, 0, LR_CREATEDIBSECTION);
 939     prepare_alpha (img->image, hasAlpha);
 940     img->hasAlpha = *hasAlpha;
 941     /* ...and stow away for later reuse. */
 942     lstrcpyW (img->name, szFile);
 943     img->next = tc->tf->images;
 944     tc->tf->images = img;
 945     TRACE ("new %p %s: %p\n", img, debugstr_w (img->name), img->image);
 946     return img->image;
 947 }
 948
 949 BOOL MSSTYLES_GetNextInteger(LPCWSTR lpStringStart, LPCWSTR lpStringEnd, LPCWSTR *lpValEnd, int *value)
 950 {
 951     LPCWSTR cur = lpStringStart;
 952     int total = 0;
 953     BOOL gotNeg = FALSE;
 954
 955     while(cur < lpStringEnd && (*cur < '0' || *cur > '9' || *cur == '-')) cur++;
 956     if(cur >= lpStringEnd) {
 957         return FALSE;
 958     }
 959     if(*cur == '-') {
 960         cur++;
 961         gotNeg = TRUE;
 962     }
 963     while(cur < lpStringEnd && (*cur >= '0' && *cur <= '9')) {
 964         total = total * 10 + (*cur - '0');
 965         cur++;
 966     }
 967     if(gotNeg) total = -total;
 968     *value = total;
 969     if(lpValEnd) *lpValEnd = cur;
 970     return TRUE;
 971 }
 972
 973 BOOL MSSTYLES_GetNextToken(LPCWSTR lpStringStart, LPCWSTR lpStringEnd, LPCWSTR *lpValEnd, LPWSTR lpBuff, DWORD buffSize) {
 974     LPCWSTR cur = lpStringStart;
 975     LPCWSTR start;
 976     LPCWSTR end;
 977
 978     while(cur < lpStringEnd && (isspace(*cur) || *cur == ',')) cur++;
 979     if(cur >= lpStringEnd) {
 980         return FALSE;
 981     }
 982     start = cur;
 983     while(cur < lpStringEnd && *cur != ',') cur++;
 984     end = cur;
 985     while(isspace(*end)) end--;
 986
 987     lstrcpynW(lpBuff, start, min(buffSize, end-start+1));
 988
 989     if(lpValEnd) *lpValEnd = cur;
 990     return TRUE;
 991 }
 992
 993 /***********************************************************************
 994  *      MSSTYLES_GetPropertyBool
 995  *
 996  * Retrieve a color value for a property
 997  */
 998 HRESULT MSSTYLES_GetPropertyBool(PTHEME_PROPERTY tp, BOOL *pfVal)
 999 {
1000     *pfVal = FALSE;
1001     if(*tp->lpValue == 't' || *tp->lpValue == 'T')
1002         *pfVal = TRUE;
1003     return S_OK;
1004 }
1005
1006 /***********************************************************************
1007  *      MSSTYLES_GetPropertyColor
1008  *
1009  * Retrieve a color value for a property
1010  */
1011 HRESULT MSSTYLES_GetPropertyColor(PTHEME_PROPERTY tp, COLORREF *pColor)
1012 {
1013     LPCWSTR lpEnd;
1014     LPCWSTR lpCur;
1015     int red, green, blue;
1016
1017     lpCur = tp->lpValue;
1018     lpEnd = tp->lpValue + tp->dwValueLen;
1019
1020     MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &red);
1021     MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &green);
1022     if(!MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &blue)) {
1023         TRACE("Could not parse color property\n");
1024         return E_PROP_ID_UNSUPPORTED;
1025     }
1026     *pColor = RGB(red,green,blue);
1027     return S_OK;
1028 }
1029
1030 /***********************************************************************
1031  *      MSSTYLES_GetPropertyColor
1032  *
1033  * Retrieve a color value for a property
1034  */
1035 HRESULT MSSTYLES_GetPropertyFont(PTHEME_PROPERTY tp, HDC hdc, LOGFONTW *pFont)
1036 {
1037     static const WCHAR szBold[] = {'b','o','l','d','\0'};
1038     static const WCHAR szItalic[] = {'i','t','a','l','i','c','\0'};
1039     static const WCHAR szUnderline[] = {'u','n','d','e','r','l','i','n','e','\0'};
1040     static const WCHAR szStrikeOut[] = {'s','t','r','i','k','e','o','u','t','\0'};
1041     int pointSize;
1042     WCHAR attr[32];
1043     LPCWSTR lpCur = tp->lpValue;
1044     LPCWSTR lpEnd = tp->lpValue + tp->dwValueLen;
1045
1046     ZeroMemory(pFont, sizeof(LOGFONTW));
1047
1048     if(!MSSTYLES_GetNextToken(lpCur, lpEnd, &lpCur, pFont->lfFaceName, LF_FACESIZE)) {
1049         TRACE("Property is there, but failed to get face name\n");
1050         return E_PROP_ID_UNSUPPORTED;
1051     }
1052     if(!MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &pointSize)) {
1053         TRACE("Property is there, but failed to get point size\n");
1054         return E_PROP_ID_UNSUPPORTED;
1055     }
1056     pFont->lfHeight = -MulDiv(pointSize, GetDeviceCaps(hdc, LOGPIXELSY), 72);
1057     pFont->lfWeight = FW_REGULAR;
1058     pFont->lfCharSet = DEFAULT_CHARSET;
1059     while(MSSTYLES_GetNextToken(lpCur, lpEnd, &lpCur, attr, sizeof(attr)/sizeof(attr[0]))) {
1060         if(!lstrcmpiW(szBold, attr)) pFont->lfWeight = FW_BOLD;
1061         else if(!!lstrcmpiW(szItalic, attr)) pFont->lfItalic = TRUE;
1062         else if(!!lstrcmpiW(szUnderline, attr)) pFont->lfUnderline = TRUE;
1063         else if(!!lstrcmpiW(szStrikeOut, attr)) pFont->lfStrikeOut = TRUE;
1064     }
1065     return S_OK;
1066 }
1067
1068 /***********************************************************************
1069  *      MSSTYLES_GetPropertyInt
1070  *
1071  * Retrieve an int value for a property
1072  */
1073 HRESULT MSSTYLES_GetPropertyInt(PTHEME_PROPERTY tp, int *piVal)
1074 {
1075     if(!MSSTYLES_GetNextInteger(tp->lpValue, (tp->lpValue + tp->dwValueLen), NULL, piVal)) {
1076         TRACE("Could not parse int property\n");
1077         return E_PROP_ID_UNSUPPORTED;
1078     }
1079     return S_OK;
1080 }
1081
1082 /***********************************************************************
1083  *      MSSTYLES_GetPropertyIntList
1084  *
1085  * Retrieve an int list value for a property
1086  */
1087 HRESULT MSSTYLES_GetPropertyIntList(PTHEME_PROPERTY tp, INTLIST *pIntList)
1088 {
1089     int i;
1090     LPCWSTR lpCur = tp->lpValue;
1091     LPCWSTR lpEnd = tp->lpValue + tp->dwValueLen;
1092
1093     for(i=0; i < MAX_INTLIST_COUNT; i++) {
1094         if(!MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &pIntList->iValues[i]))
1095             break;
1096     }
1097     pIntList->iValueCount = i;
1098     return S_OK;
1099 }
1100
1101 /***********************************************************************
1102  *      MSSTYLES_GetPropertyPosition
1103  *
1104  * Retrieve a position value for a property
1105  */
1106 HRESULT MSSTYLES_GetPropertyPosition(PTHEME_PROPERTY tp, POINT *pPoint)
1107 {
1108     int x,y;
1109     LPCWSTR lpCur = tp->lpValue;
1110     LPCWSTR lpEnd = tp->lpValue + tp->dwValueLen;
1111
1112     MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &x);
1113     if(!MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &y)) {
1114         TRACE("Could not parse position property\n");
1115         return E_PROP_ID_UNSUPPORTED;
1116     }
1117     pPoint->x = x;
1118     pPoint->y = y;
1119     return S_OK;
1120 }
1121
1122 /***********************************************************************
1123  *      MSSTYLES_GetPropertyString
1124  *
1125  * Retrieve a string value for a property
1126  */
1127 HRESULT MSSTYLES_GetPropertyString(PTHEME_PROPERTY tp, LPWSTR pszBuff, int cchMaxBuffChars)
1128 {
1129     lstrcpynW(pszBuff, tp->lpValue, min(tp->dwValueLen+1, cchMaxBuffChars));
1130     return S_OK;
1131 }
1132
1133 /***********************************************************************
1134  *      MSSTYLES_GetPropertyRect
1135  *
1136  * Retrieve a rect value for a property
1137  */
1138 HRESULT MSSTYLES_GetPropertyRect(PTHEME_PROPERTY tp, RECT *pRect)
1139 {
1140     LPCWSTR lpCur = tp->lpValue;
1141     LPCWSTR lpEnd = tp->lpValue + tp->dwValueLen;
1142
1143     MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, (int*)&pRect->left);
1144     MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, (int*)&pRect->top);
1145     MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, (int*)&pRect->right);
1146     if(!MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, (int*)&pRect->bottom)) {
1147         TRACE("Could not parse rect property\n");
1148         return E_PROP_ID_UNSUPPORTED;
1149     }
1150     return S_OK;
1151 }
1152
1153 /***********************************************************************
1154  *      MSSTYLES_GetPropertyMargins
1155  *
1156  * Retrieve a margins value for a property
1157  */
1158 HRESULT MSSTYLES_GetPropertyMargins(PTHEME_PROPERTY tp, RECT *prc, MARGINS *pMargins)
1159 {
1160     LPCWSTR lpCur = tp->lpValue;
1161     LPCWSTR lpEnd = tp->lpValue + tp->dwValueLen;
1162
1163     MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &pMargins->cxLeftWidth);
1164     MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &pMargins->cxRightWidth);
1165     MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &pMargins->cyTopHeight);
1166     if(!MSSTYLES_GetNextInteger(lpCur, lpEnd, &lpCur, &pMargins->cyBottomHeight)) {
1167         TRACE("Could not parse margins property\n");
1168         return E_PROP_ID_UNSUPPORTED;
1169     }
1170     return S_OK;
1171 }