objects/cursoricon.c

   1 /*
   2  * Cursor and icon support
   3  *
   4  * Copyright 1995 Alexandre Julliard
   5  */
   6
   7 /*
   8  * Theory:
   9  *
  10  * Cursors and icons are stored in a global heap block, with the
  11  * following layout:
  12  *
  13  * CURSORICONINFO info;
  14  * BYTE[]         ANDbits;
  15  * BYTE[]         XORbits;
  16  *
  17  * The bits structures are in the format of a device-dependent bitmap.
  18  *
  19  * This layout is very sub-optimal, as the bitmap bits are stored in
  20  * the X client instead of in the server like other bitmaps; however,
  21  * some programs (notably Paint Brush) expect to be able to manipulate
  22  * the bits directly :-(
  23  */
  24
  25 #include <string.h>
  26 #include <stdlib.h>
  27 #include "windows.h"
  28 #include "bitmap.h"
  29 #include "callback.h"
  30 #include "cursoricon.h"
  31 #include "sysmetrics.h"
  32 #include "win.h"
  33 #include "stddebug.h"
  34 #include "debug.h"
  35 #include "xmalloc.h"
  36 #include "task.h"
  37
  38
  39 Cursor CURSORICON_XCursor = None;  /* Current X cursor */
  40 static HCURSOR hActiveCursor = 0;  /* Active cursor */
  41 static int CURSOR_ShowCount = 0;   /* Cursor display count */
  42 static RECT32 CURSOR_ClipRect;       /* Cursor clipping rect */
  43
  44 /**********************************************************************
  45  *          CURSORICON_FindBestIcon
  46  *
  47  * Find the icon closest to the requested size and number of colors.
  48  */
  49 static ICONDIRENTRY *CURSORICON_FindBestIcon( CURSORICONDIR *dir, int width,
  50                                               int height, int colors )
  51 {
  52     int i, maxcolors, maxwidth, maxheight;
  53     ICONDIRENTRY *entry, *bestEntry = NULL;
  54
  55     if (dir->idCount < 1)
  56     {
  57         fprintf( stderr, "Icon: empty directory!\n" );
  58         return NULL;
  59     }
  60     if (dir->idCount == 1) return &dir->idEntries[0].icon;  /* No choice... */
  61
  62     /* First find the exact size with less colors */
  63
  64     maxcolors = 0;
  65     for (i = 0, entry = &dir->idEntries[0].icon; i < dir->idCount; i++,entry++)
  66         if ((entry->bWidth == width) && (entry->bHeight == height) &&
  67             (entry->bColorCount <= colors) && (entry->bColorCount > maxcolors))
  68         {
  69             bestEntry = entry;
  70             maxcolors = entry->bColorCount;
  71         }
  72     if (bestEntry) return bestEntry;
  73
  74     /* First find the exact size with more colors */
  75
  76     maxcolors = 255;
  77     for (i = 0, entry = &dir->idEntries[0].icon; i < dir->idCount; i++,entry++)
  78         if ((entry->bWidth == width) && (entry->bHeight == height) &&
  79             (entry->bColorCount > colors) && (entry->bColorCount <= maxcolors))
  80         {
  81             bestEntry = entry;
  82             maxcolors = entry->bColorCount;
  83         }
  84     if (bestEntry) return bestEntry;
  85
  86     /* Now find a smaller one with less colors */
  87
  88     maxcolors = maxwidth = maxheight = 0;
  89     for (i = 0, entry = &dir->idEntries[0].icon; i < dir->idCount; i++,entry++)
  90         if ((entry->bWidth <= width) && (entry->bHeight <= height) &&
  91             (entry->bWidth >= maxwidth) && (entry->bHeight >= maxheight) &&
  92             (entry->bColorCount <= colors) && (entry->bColorCount > maxcolors))
  93         {
  94             bestEntry = entry;
  95             maxwidth  = entry->bWidth;
  96             maxheight = entry->bHeight;
  97             maxcolors = entry->bColorCount;
  98         }
  99     if (bestEntry) return bestEntry;
 100
 101     /* Now find a smaller one with more colors */
 102
 103     maxcolors = 255;
 104     maxwidth = maxheight = 0;
 105     for (i = 0, entry = &dir->idEntries[0].icon; i < dir->idCount; i++,entry++)
 106         if ((entry->bWidth <= width) && (entry->bHeight <= height) &&
 107             (entry->bWidth >= maxwidth) && (entry->bHeight >= maxheight) &&
 108             (entry->bColorCount > colors) && (entry->bColorCount <= maxcolors))
 109         {
 110             bestEntry = entry;
 111             maxwidth  = entry->bWidth;
 112             maxheight = entry->bHeight;
 113             maxcolors = entry->bColorCount;
 114         }
 115     if (bestEntry) return bestEntry;
 116
 117     /* Now find a larger one with less colors */
 118
 119     maxcolors = 0;
 120     maxwidth = maxheight = 255;
 121     for (i = 0, entry = &dir->idEntries[0].icon; i < dir->idCount; i++,entry++)
 122         if ((entry->bWidth <= maxwidth) && (entry->bHeight <= maxheight) &&
 123             (entry->bColorCount <= colors) && (entry->bColorCount > maxcolors))
 124         {
 125             bestEntry = entry;
 126             maxwidth  = entry->bWidth;
 127             maxheight = entry->bHeight;
 128             maxcolors = entry->bColorCount;
 129         }
 130     if (bestEntry) return bestEntry;
 131
 132     /* Now find a larger one with more colors */
 133
 134     maxcolors = maxwidth = maxheight = 255;
 135     for (i = 0, entry = &dir->idEntries[0].icon; i < dir->idCount; i++,entry++)
 136         if ((entry->bWidth <= maxwidth) && (entry->bHeight <= maxheight) &&
 137             (entry->bColorCount > colors) && (entry->bColorCount <= maxcolors))
 138         {
 139             bestEntry = entry;
 140             maxwidth  = entry->bWidth;
 141             maxheight = entry->bHeight;
 142             maxcolors = entry->bColorCount;
 143         }
 144
 145     return bestEntry;
 146 }
 147
 148
 149 /**********************************************************************
 150  *          CURSORICON_FindBestCursor
 151  *
 152  * Find the cursor closest to the requested size.
 153  */
 154 static CURSORDIRENTRY *CURSORICON_FindBestCursor( CURSORICONDIR *dir,
 155                                                   int width, int height )
 156 {
 157     int i, maxwidth, maxheight;
 158     CURSORDIRENTRY *entry, *bestEntry = NULL;
 159
 160     if (dir->idCount < 1)
 161     {
 162         fprintf( stderr, "Cursor: empty directory!\n" );
 163         return NULL;
 164     }
 165     if (dir->idCount == 1) return &dir->idEntries[0].cursor; /* No choice... */
 166
 167     /* First find the largest one smaller than or equal to the requested size*/
 168
 169     maxwidth = maxheight = 0;
 170     for(i = 0,entry = &dir->idEntries[0].cursor; i < dir->idCount; i++,entry++)
 171         if ((entry->wWidth <= width) && (entry->wHeight <= height) &&
 172             (entry->wWidth > maxwidth) && (entry->wHeight > maxheight))
 173         {
 174             bestEntry = entry;
 175             maxwidth  = entry->wWidth;
 176             maxheight = entry->wHeight;
 177         }
 178     if (bestEntry) return bestEntry;
 179
 180     /* Now find the smallest one larger than the requested size */
 181
 182     maxwidth = maxheight = 255;
 183     for(i = 0,entry = &dir->idEntries[0].cursor; i < dir->idCount; i++,entry++)
 184         if ((entry->wWidth < maxwidth) && (entry->wHeight < maxheight))
 185         {
 186             bestEntry = entry;
 187             maxwidth  = entry->wWidth;
 188             maxheight = entry->wHeight;
 189         }
 190
 191     return bestEntry;
 192 }
 193
 194
 195 /**********************************************************************
 196  *          CURSORICON_LoadDirEntry
 197  *
 198  * Load the icon/cursor directory for a given resource name and find the
 199  * best matching entry.
 200  */
 201 static BOOL CURSORICON_LoadDirEntry(HANDLE hInstance, SEGPTR name,
 202                                     int width, int height, int colors,
 203                                     BOOL fCursor, CURSORICONDIRENTRY *dirEntry)
 204 {
 205     HRSRC hRsrc;
 206     HANDLE hMem;
 207     CURSORICONDIR *dir;
 208     CURSORICONDIRENTRY *entry = NULL;
 209
 210     if (!(hRsrc = FindResource( hInstance, name,
 211                                 fCursor ? RT_GROUP_CURSOR : RT_GROUP_ICON )))
 212         return FALSE;
 213     if (!(hMem = LoadResource( hInstance, hRsrc ))) return FALSE;
 214     if ((dir = (CURSORICONDIR *)LockResource( hMem )))
 215     {
 216         if (fCursor)
 217             entry = (CURSORICONDIRENTRY *)CURSORICON_FindBestCursor( dir,
 218                                                                width, height );
 219         else
 220             entry = (CURSORICONDIRENTRY *)CURSORICON_FindBestIcon( dir,
 221                                                        width, height, colors );
 222         if (entry) *dirEntry = *entry;
 223     }
 224     FreeResource( hMem );
 225     return (entry != NULL);
 226 }
 227
 228
 229 /**********************************************************************
 230  *          CURSORICON_LoadHandler
 231  *
 232  * Create a cursor or icon from a resource.
 233  */
 234 HANDLE CURSORICON_LoadHandler( HANDLE handle, HINSTANCE hInstance,
 235                                       BOOL fCursor )
 236 {
 237     HANDLE hAndBits, hXorBits;
 238     HDC hdc;
 239     int size, sizeAnd, sizeXor;
 240     POINT16 hotspot = { 0 ,0 };
 241     BITMAPOBJ *bmpXor, *bmpAnd;
 242     BITMAPINFO *bmi, *pInfo;
 243     CURSORICONINFO *info;
 244     char *bits;
 245
 246     if (fCursor)  /* If cursor, get the hotspot */
 247     {
 248         POINT16 *pt = (POINT16 *)LockResource( handle );
 249         hotspot = *pt;
 250         bmi = (BITMAPINFO *)(pt + 1);
 251     }
 252     else bmi = (BITMAPINFO *)LockResource( handle );
 253
 254     /* Create a copy of the bitmap header */
 255
 256     size = DIB_BitmapInfoSize( bmi, DIB_RGB_COLORS );
 257     /* Make sure we have room for the monochrome bitmap later on */
 258     size = MAX( size, sizeof(BITMAPINFOHEADER) + 2*sizeof(RGBQUAD) );
 259     pInfo = (BITMAPINFO *)xmalloc( size );
 260     memcpy( pInfo, bmi, size );
 261
 262     if (pInfo->bmiHeader.biSize == sizeof(BITMAPINFOHEADER))
 263     {
 264         if (pInfo->bmiHeader.biCompression != BI_RGB)
 265         {
 266             fprintf(stderr,"Unknown size for compressed icon bitmap.\n");
 267             free( pInfo );
 268             return 0;
 269         }
 270         pInfo->bmiHeader.biHeight /= 2;
 271     }
 272     else if (pInfo->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
 273     {
 274         BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)pInfo;
 275         core->bcHeight /= 2;
 276     }
 277     else
 278     {
 279         fprintf( stderr, "CURSORICON_Load: Unknown bitmap length %ld!\n",
 280                  pInfo->bmiHeader.biSize );
 281         free( pInfo );
 282         return 0;
 283     }
 284
 285     /* Create the XOR bitmap */
 286
 287     if (!(hdc = GetDC( 0 )))
 288     {
 289         free( pInfo );
 290         return 0;
 291     }
 292
 293     hXorBits = CreateDIBitmap( hdc, &pInfo->bmiHeader, CBM_INIT,
 294                                (char*)bmi + size, pInfo, DIB_RGB_COLORS );
 295
 296     /* Fix the bitmap header to load the monochrome mask */
 297
 298     if (pInfo->bmiHeader.biSize == sizeof(BITMAPINFOHEADER))
 299     {
 300         BITMAPINFOHEADER *bih = &pInfo->bmiHeader;
 301         RGBQUAD *rgb = pInfo->bmiColors;
 302         bits = (char *)bmi + size +
 303             DIB_GetImageWidthBytes(bih->biWidth,bih->biBitCount)*bih->biHeight;
 304         bih->biBitCount = 1;
 305         bih->biClrUsed = bih->biClrImportant = 2;
 306         rgb[0].rgbBlue = rgb[0].rgbGreen = rgb[0].rgbRed = 0x00;
 307         rgb[1].rgbBlue = rgb[1].rgbGreen = rgb[1].rgbRed = 0xff;
 308         rgb[0].rgbReserved = rgb[1].rgbReserved = 0;
 309     }
 310     else
 311     {
 312         BITMAPCOREHEADER *bch = (BITMAPCOREHEADER *)pInfo;
 313         RGBTRIPLE *rgb = (RGBTRIPLE *)(bch + 1);
 314         bits = (char *)bmi + size +
 315             DIB_GetImageWidthBytes(bch->bcWidth,bch->bcBitCount)*bch->bcHeight;
 316         bch->bcBitCount = 1;
 317         rgb[0].rgbtBlue = rgb[0].rgbtGreen = rgb[0].rgbtRed = 0x00;
 318         rgb[1].rgbtBlue = rgb[1].rgbtGreen = rgb[1].rgbtRed = 0xff;
 319     }
 320
 321     /* Create the AND bitmap */
 322
 323     hAndBits = CreateDIBitmap( hdc, &pInfo->bmiHeader, CBM_INIT,
 324                                bits, pInfo, DIB_RGB_COLORS );
 325     ReleaseDC( 0, hdc );
 326
 327     /* Now create the CURSORICONINFO structure */
 328
 329     bmpXor = (BITMAPOBJ *) GDI_GetObjPtr( hXorBits, BITMAP_MAGIC );
 330     bmpAnd = (BITMAPOBJ *) GDI_GetObjPtr( hAndBits, BITMAP_MAGIC );
 331     sizeXor = bmpXor->bitmap.bmHeight * bmpXor->bitmap.bmWidthBytes;
 332     sizeAnd = bmpAnd->bitmap.bmHeight * bmpAnd->bitmap.bmWidthBytes;
 333
 334     if (!(handle = GlobalAlloc16( GMEM_MOVEABLE,
 335                                   sizeof(CURSORICONINFO) + sizeXor + sizeAnd)))
 336     {
 337         DeleteObject( hXorBits );
 338         DeleteObject( hAndBits );
 339         return 0;
 340     }
 341
 342     /* Make it owned by the module */
 343     if (hInstance) FarSetOwner( handle, GetExePtr(hInstance) );
 344
 345     info = (CURSORICONINFO *)GlobalLock16( handle );
 346     info->ptHotSpot.x   = hotspot.x;
 347     info->ptHotSpot.y   = hotspot.y;
 348     info->nWidth        = bmpXor->bitmap.bmWidth;
 349     info->nHeight       = bmpXor->bitmap.bmHeight;
 350     info->nWidthBytes   = bmpXor->bitmap.bmWidthBytes;
 351     info->bPlanes       = bmpXor->bitmap.bmPlanes;
 352     info->bBitsPerPixel = bmpXor->bitmap.bmBitsPixel;
 353
 354     /* Transfer the bitmap bits to the CURSORICONINFO structure */
 355
 356     GetBitmapBits( hAndBits, sizeAnd, (char *)(info + 1) );
 357     GetBitmapBits( hXorBits, sizeXor, (char *)(info + 1) + sizeAnd );
 358     DeleteObject( hXorBits );
 359     DeleteObject( hAndBits );
 360     GlobalUnlock16( handle );
 361     return handle;
 362 }
 363
 364 /**********************************************************************
 365  *          CURSORICON_Load
 366  *
 367  * Load a cursor or icon.
 368  */
 369 static HANDLE CURSORICON_Load( HANDLE hInstance, SEGPTR name, int width,
 370                                int height, int colors, BOOL fCursor )
 371 {
 372     HANDLE handle,hRet;
 373     HRSRC  hRsrc;
 374     CURSORICONDIRENTRY dirEntry;
 375
 376     if (!hInstance)  /* OEM cursor/icon */
 377     {
 378         if (HIWORD(name))  /* Check for '#xxx' name */
 379         {
 380             char *ptr = PTR_SEG_TO_LIN( name );
 381             if (ptr[0] != '#') return 0;
 382             if (!(name = (SEGPTR)atoi( ptr + 1 ))) return 0;
 383         }
 384         return OBM_LoadCursorIcon( LOWORD(name), fCursor );
 385     }
 386
 387     /* Find the best entry in the directory */
 388
 389     if (!CURSORICON_LoadDirEntry( hInstance, name, width, height,
 390                                   colors, fCursor, &dirEntry )) return 0;
 391
 392     /* Load the resource */
 393
 394     if (!(hRsrc = FindResource( hInstance,
 395                                 MAKEINTRESOURCE( dirEntry.icon.wResId ),
 396                                 fCursor ? RT_CURSOR : RT_ICON ))) return 0;
 397     if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
 398
 399     hRet = CURSORICON_LoadHandler( handle, hInstance, fCursor );
 400     FreeResource(handle);
 401     return hRet;
 402 }
 403
 404
 405 /***********************************************************************
 406  *           CURSORICON_Copy
 407  *
 408  * Make a copy of a cursor or icon.
 409  */
 410 static HANDLE CURSORICON_Copy( HANDLE hInstance, HANDLE handle )
 411 {
 412     char *ptrOld, *ptrNew;
 413     int size;
 414     HANDLE hNew;
 415
 416     if (!(ptrOld = (char *)GlobalLock16( handle ))) return 0;
 417     if (!(hInstance = GetExePtr( hInstance ))) return 0;
 418     size = GlobalSize16( handle );
 419     hNew = GlobalAlloc16( GMEM_MOVEABLE, size );
 420     FarSetOwner( hNew, hInstance );
 421     ptrNew = (char *)GlobalLock16( hNew );
 422     memcpy( ptrNew, ptrOld, size );
 423     GlobalUnlock16( handle );
 424     GlobalUnlock16( hNew );
 425     return hNew;
 426 }
 427
 428 /***********************************************************************
 429  *           CURSORICON_IconToCursor
 430  *
 431  * Should convert bitmap to mono and truncate if too large
 432  * FIXME: if icon is passed returns a copy of OCR_DRAGOBJECT cursor
 433  *        but should actually convert icon to cursor.
 434  */
 435 HCURSOR CURSORICON_IconToCursor(HICON hIcon)
 436 {
 437  CURSORICONINFO *ptr = NULL;
 438
 439  if(hIcon)
 440     if (!(ptr = (CURSORICONINFO*)GlobalLock16( hIcon ))) return FALSE;
 441        if (ptr->bPlanes * ptr->bBitsPerPixel == 1)
 442           {
 443             return hIcon; /* assuming it's a cursor */
 444           }
 445        else
 446           {
 447            /* kludge */
 448
 449            HTASK hTask = GetCurrentTask();
 450            TDB*  pTask = (TDB *)GlobalLock16(hTask);
 451
 452            if(!pTask) return 0;
 453
 454            fprintf( stdnimp, "IconToCursor: Icons are not supported, returning default!\n");
 455            return CURSORICON_Copy( pTask->hInstance ,
 456                                    CURSORICON_Load(0,MAKEINTRESOURCE(OCR_DRAGOBJECT),
 457                                                    SYSMETRICS_CXCURSOR, SYSMETRICS_CYCURSOR, 1, TRUE) );
 458           }
 459
 460  return 0;
 461 }
 462
 463 /***********************************************************************
 464  *           LoadCursor    (USER.173)
 465  */
 466 HCURSOR LoadCursor( HANDLE hInstance, SEGPTR name )
 467 {
 468     if (HIWORD(name))
 469         dprintf_cursor( stddeb, "LoadCursor: %04x '%s'\n",
 470                         hInstance, (char *)PTR_SEG_TO_LIN( name ) );
 471     else
 472         dprintf_cursor( stddeb, "LoadCursor: %04x %04x\n",
 473                         hInstance, LOWORD(name) );
 474
 475     return CURSORICON_Load( hInstance, name,
 476                             SYSMETRICS_CXCURSOR, SYSMETRICS_CYCURSOR, 1, TRUE);
 477 }
 478
 479
 480 /***********************************************************************
 481  *           LoadIcon    (USER.174)
 482  */
 483 HICON LoadIcon( HANDLE hInstance, SEGPTR name )
 484 {
 485     if (HIWORD(name))
 486         dprintf_icon( stddeb, "LoadIcon: %04x '%s'\n",
 487                       hInstance, (char *)PTR_SEG_TO_LIN( name ) );
 488     else
 489         dprintf_icon( stddeb, "LoadIcon: %04x %04x\n",
 490                       hInstance, LOWORD(name) );
 491
 492     return CURSORICON_Load( hInstance, name,
 493                             SYSMETRICS_CXICON, SYSMETRICS_CYICON,
 494                             MIN( 16, 1 << screenDepth ), FALSE );
 495 }
 496
 497
 498 /***********************************************************************
 499  *           CreateCursor    (USER.406)
 500  */
 501 HCURSOR CreateCursor( HINSTANCE hInstance, INT xHotSpot, INT yHotSpot,
 502                       INT nWidth, INT nHeight,
 503                       const BYTE *lpANDbits, const BYTE *lpXORbits )
 504 {
 505     CURSORICONINFO info = { { xHotSpot, yHotSpot }, nWidth, nHeight, 0, 1, 1 };
 506
 507     dprintf_cursor( stddeb, "CreateCursor: %dx%d spot=%d,%d xor=%p and=%p\n",
 508                     nWidth, nHeight, xHotSpot, yHotSpot, lpXORbits, lpANDbits);
 509     return CreateCursorIconIndirect( hInstance, &info, lpANDbits, lpXORbits );
 510 }
 511
 512
 513 /***********************************************************************
 514  *           CreateIcon    (USER.407)
 515  */
 516 HICON CreateIcon( HINSTANCE hInstance, INT nWidth, INT nHeight, BYTE bPlanes,
 517                   BYTE bBitsPixel, const BYTE* lpANDbits, const BYTE* lpXORbits)
 518 {
 519     CURSORICONINFO info = { { 0, 0 }, nWidth, nHeight, 0, bPlanes, bBitsPixel };
 520
 521     dprintf_icon( stddeb, "CreateIcon: %dx%dx%d, xor=%p, and=%p\n",
 522                   nWidth, nHeight, bPlanes * bBitsPixel, lpXORbits, lpANDbits);
 523     return CreateCursorIconIndirect( hInstance, &info, lpANDbits, lpXORbits );
 524 }
 525
 526
 527 /***********************************************************************
 528  *           CreateCursorIconIndirect    (USER.408)
 529  */
 530 HANDLE CreateCursorIconIndirect( HANDLE hInstance, CURSORICONINFO *info,
 531                                  const BYTE *lpANDbits, const BYTE *lpXORbits )
 532 {
 533     HANDLE handle;
 534     char *ptr;
 535     int sizeAnd, sizeXor;
 536
 537     hInstance = GetExePtr( hInstance );  /* Make it a module handle */
 538     if (!hInstance || !lpXORbits || !lpANDbits || info->bPlanes != 1) return 0;
 539     info->nWidthBytes = BITMAP_WIDTH_BYTES(info->nWidth,info->bBitsPerPixel);
 540     sizeXor = info->nHeight * info->nWidthBytes;
 541     sizeAnd = info->nHeight * BITMAP_WIDTH_BYTES( info->nWidth, 1 );
 542     if (!(handle = DirectResAlloc(hInstance, 0x10,
 543                                   sizeof(CURSORICONINFO) + sizeXor + sizeAnd)))
 544         return 0;
 545     ptr = (char *)GlobalLock16( handle );
 546     memcpy( ptr, info, sizeof(*info) );
 547     memcpy( ptr + sizeof(CURSORICONINFO), lpANDbits, sizeAnd );
 548     memcpy( ptr + sizeof(CURSORICONINFO) + sizeAnd, lpXORbits, sizeXor );
 549     GlobalUnlock16( handle );
 550     return handle;
 551 }
 552
 553
 554 /***********************************************************************
 555  *           CopyIcon    (USER.368)
 556  */
 557 #ifdef WINELIB
 558 HICON CopyIcon( HICON hIcon )
 559 {
 560     dprintf_icon( stddeb, "CopyIcon: %04x\n", hIcon );
 561     return CURSORICON_Copy( 0, hIcon );
 562 }
 563 #else
 564 HICON CopyIcon( HANDLE hInstance, HICON hIcon )
 565 {
 566     dprintf_icon( stddeb, "CopyIcon: %04x %04x\n", hInstance, hIcon );
 567     return CURSORICON_Copy( hInstance, hIcon );
 568 }
 569 #endif
 570
 571
 572 /***********************************************************************
 573  *           CopyCursor    (USER.369)
 574  */
 575 #ifdef WINELIB
 576 HCURSOR CopyCursor( HCURSOR hCursor )
 577 {
 578     dprintf_cursor( stddeb, "CopyCursor: %04x\n", hCursor );
 579     return CURSORICON_Copy( 0, hCursor );
 580 }
 581 #else
 582 HCURSOR CopyCursor( HANDLE hInstance, HCURSOR hCursor )
 583 {
 584     dprintf_cursor( stddeb, "CopyCursor: %04x %04x\n", hInstance, hCursor );
 585     return CURSORICON_Copy( hInstance, hCursor );
 586 }
 587 #endif
 588
 589
 590 /***********************************************************************
 591  *           DestroyIcon    (USER.457)
 592  */
 593 BOOL DestroyIcon( HICON hIcon )
 594 {
 595     dprintf_icon( stddeb, "DestroyIcon: %04x\n", hIcon );
 596     /* FIXME: should check for OEM icon here */
 597     return (GlobalFree16( hIcon ) != 0);
 598 }
 599
 600
 601 /***********************************************************************
 602  *           DestroyCursor    (USER.458)
 603  */
 604 BOOL DestroyCursor( HCURSOR hCursor )
 605 {
 606     dprintf_cursor( stddeb, "DestroyCursor: %04x\n", hCursor );
 607     /* FIXME: should check for OEM cursor here */
 608     return (GlobalFree16( hCursor ) != 0);
 609 }
 610
 611
 612 /***********************************************************************
 613  *           DrawIcon    (USER.84)
 614  */
 615 BOOL DrawIcon( HDC hdc, INT x, INT y, HICON hIcon )
 616 {
 617     CURSORICONINFO *ptr;
 618     HDC hMemDC;
 619     HBITMAP hXorBits, hAndBits;
 620     COLORREF oldFg, oldBg;
 621
 622     if (!(ptr = (CURSORICONINFO *)GlobalLock16( hIcon ))) return FALSE;
 623     if (!(hMemDC = CreateCompatibleDC( hdc ))) return FALSE;
 624     hAndBits = CreateBitmap( ptr->nWidth, ptr->nHeight, 1, 1, (char *)(ptr+1));
 625     hXorBits = CreateBitmap( ptr->nWidth, ptr->nHeight, ptr->bPlanes,
 626                              ptr->bBitsPerPixel, (char *)(ptr + 1)
 627                          + ptr->nHeight * BITMAP_WIDTH_BYTES(ptr->nWidth,1) );
 628     oldFg = SetTextColor( hdc, RGB(0,0,0) );
 629     oldBg = SetBkColor( hdc, RGB(255,255,255) );
 630
 631     if (hXorBits && hAndBits)
 632     {
 633         HBITMAP hBitTemp = SelectObject( hMemDC, hAndBits );
 634         BitBlt( hdc, x, y, ptr->nWidth, ptr->nHeight, hMemDC, 0, 0, SRCAND );
 635         SelectObject( hMemDC, hXorBits );
 636         BitBlt( hdc, x, y, ptr->nWidth, ptr->nHeight, hMemDC, 0, 0, SRCINVERT);
 637         SelectObject( hMemDC, hBitTemp );
 638     }
 639     DeleteDC( hMemDC );
 640     if (hXorBits) DeleteObject( hXorBits );
 641     if (hAndBits) DeleteObject( hAndBits );
 642     GlobalUnlock16( hIcon );
 643     SetTextColor( hdc, oldFg );
 644     SetBkColor( hdc, oldBg );
 645     return TRUE;
 646 }
 647
 648
 649 /***********************************************************************
 650  *           DumpIcon    (USER.459)
 651  */
 652 DWORD DumpIcon( SEGPTR pInfo, WORD *lpLen,
 653                 SEGPTR *lpXorBits, SEGPTR *lpAndBits )
 654 {
 655     CURSORICONINFO *info = PTR_SEG_TO_LIN( pInfo );
 656     int sizeAnd, sizeXor;
 657
 658     if (!info) return 0;
 659     sizeXor = info->nHeight * info->nWidthBytes;
 660     sizeAnd = info->nHeight * BITMAP_WIDTH_BYTES( info->nWidth, 1 );
 661     if (lpAndBits) *lpAndBits = pInfo + sizeof(CURSORICONINFO);
 662     if (lpXorBits) *lpXorBits = pInfo + sizeof(CURSORICONINFO) + sizeAnd;
 663     if (lpLen) *lpLen = sizeof(CURSORICONINFO) + sizeAnd + sizeXor;
 664     return MAKELONG( sizeXor, sizeXor );
 665 }
 666
 667
 668 /***********************************************************************
 669  *           CURSORICON_SetCursor
 670  *
 671  * Change the X cursor. Helper function for SetCursor() and ShowCursor().
 672  */
 673 static BOOL CURSORICON_SetCursor( HCURSOR hCursor )
 674 {
 675     Pixmap pixmapBits, pixmapMask, pixmapAll;
 676     XColor fg, bg;
 677     Cursor cursor = None;
 678
 679     if (!hCursor)  /* Create an empty cursor */
 680     {
 681         static const char data[] = { 0 };
 682
 683         bg.red = bg.green = bg.blue = 0x0000;
 684         pixmapBits = XCreateBitmapFromData( display, rootWindow, data, 1, 1 );
 685         if (pixmapBits)
 686         {
 687             cursor = XCreatePixmapCursor( display, pixmapBits, pixmapBits,
 688                                           &bg, &bg, 0, 0 );
 689             XFreePixmap( display, pixmapBits );
 690         }
 691     }
 692     else  /* Create the X cursor from the bits */
 693     {
 694         CURSORICONINFO *ptr;
 695         XImage *image;
 696
 697         if (!(ptr = (CURSORICONINFO*)GlobalLock16( hCursor ))) return FALSE;
 698         if (ptr->bPlanes * ptr->bBitsPerPixel != 1)
 699         {
 700             fprintf( stderr, "Cursor %04x has more than 1 bpp!\n", hCursor );
 701             return FALSE;
 702         }
 703
 704         /* Create a pixmap and transfer all the bits to it */
 705
 706         pixmapAll = XCreatePixmap( display, rootWindow,
 707                                    ptr->nWidth, ptr->nHeight * 2, 1 );
 708         image = XCreateImage( display, DefaultVisualOfScreen(screen),
 709                               1, ZPixmap, 0, (char *)(ptr + 1), ptr->nWidth,
 710                               ptr->nHeight * 2, 16, ptr->nWidthBytes);
 711         if (image)
 712         {
 713             extern void _XInitImageFuncPtrs( XImage* );
 714             image->byte_order = MSBFirst;
 715             image->bitmap_bit_order = MSBFirst;
 716             image->bitmap_unit = 16;
 717             _XInitImageFuncPtrs(image);
 718             if (pixmapAll)
 719                 CallTo32_LargeStack( XPutImage, 10,
 720                                      display, pixmapAll, BITMAP_monoGC, image,
 721                                      0, 0, 0, 0, ptr->nWidth, ptr->nHeight*2 );
 722             image->data = NULL;
 723             XDestroyImage( image );
 724         }
 725
 726         /* Now create the 2 pixmaps for bits and mask */
 727
 728         pixmapBits = XCreatePixmap( display, rootWindow,
 729                                     ptr->nWidth, ptr->nHeight, 1 );
 730         pixmapMask = XCreatePixmap( display, rootWindow,
 731                                     ptr->nWidth, ptr->nHeight, 1 );
 732
 733         /* Make sure everything went OK so far */
 734
 735         if (pixmapBits && pixmapMask && pixmapAll)
 736         {
 737             /* We have to do some magic here, as cursors are not fully
 738              * compatible between Windows and X11. Under X11, there
 739              * are only 3 possible color cursor: black, white and
 740              * masked. So we map the 4th Windows color (invert the
 741              * bits on the screen) to black. This require some boolean
 742              * arithmetic:
 743              *
 744              *         Windows          |          X11
 745              * Xor    And      Result   |   Bits     Mask     Result
 746              *  0      0     black      |    0        1     background
 747              *  0      1     no change  |    X        0     no change
 748              *  1      0     white      |    1        1     foreground
 749              *  1      1     inverted   |    0        1     background
 750              *
 751              * which gives:
 752              *  Bits = 'Xor' and not 'And'
 753              *  Mask = 'Xor' or not 'And'
 754              *
 755              * FIXME: apparently some servers do support 'inverted' color.
 756              * I don't know if it's correct per the X spec, but maybe
 757              * we ought to take advantage of it.  -- AJ
 758              */
 759             XCopyArea( display, pixmapAll, pixmapBits, BITMAP_monoGC,
 760                        0, 0, ptr->nWidth, ptr->nHeight, 0, 0 );
 761             XCopyArea( display, pixmapAll, pixmapMask, BITMAP_monoGC,
 762                        0, 0, ptr->nWidth, ptr->nHeight, 0, 0 );
 763             XSetFunction( display, BITMAP_monoGC, GXandReverse );
 764             XCopyArea( display, pixmapAll, pixmapBits, BITMAP_monoGC,
 765                        0, ptr->nHeight, ptr->nWidth, ptr->nHeight, 0, 0 );
 766             XSetFunction( display, BITMAP_monoGC, GXorReverse );
 767             XCopyArea( display, pixmapAll, pixmapMask, BITMAP_monoGC,
 768                        0, ptr->nHeight, ptr->nWidth, ptr->nHeight, 0, 0 );
 769             XSetFunction( display, BITMAP_monoGC, GXcopy );
 770             fg.red = fg.green = fg.blue = 0xffff;
 771             bg.red = bg.green = bg.blue = 0x0000;
 772             cursor = XCreatePixmapCursor( display, pixmapBits, pixmapMask,
 773                                 &fg, &bg, ptr->ptHotSpot.x, ptr->ptHotSpot.y );
 774         }
 775
 776         /* Now free everything */
 777
 778         if (pixmapAll) XFreePixmap( display, pixmapAll );
 779         if (pixmapBits) XFreePixmap( display, pixmapBits );
 780         if (pixmapMask) XFreePixmap( display, pixmapMask );
 781         GlobalUnlock16( hCursor );
 782     }
 783
 784     if (cursor == None) return FALSE;
 785     if (CURSORICON_XCursor != None) XFreeCursor( display, CURSORICON_XCursor );
 786     CURSORICON_XCursor = cursor;
 787
 788     if (rootWindow != DefaultRootWindow(display))
 789     {
 790         /* Set the cursor on the desktop window */
 791         XDefineCursor( display, rootWindow, cursor );
 792     }
 793     else
 794     {
 795         /* Set the same cursor for all top-level windows */
 796         HWND hwnd = GetWindow( GetDesktopWindow(), GW_CHILD );
 797         while(hwnd)
 798         {
 799             Window win = WIN_GetXWindow( hwnd );
 800             if (win) XDefineCursor( display, win, cursor );
 801             hwnd = GetWindow( hwnd, GW_HWNDNEXT );
 802         }
 803     }
 804     return TRUE;
 805 }
 806
 807
 808 /***********************************************************************
 809  *           SetCursor    (USER.69)
 810  */
 811 HCURSOR SetCursor( HCURSOR hCursor )
 812 {
 813     HCURSOR hOldCursor;
 814
 815     if (hCursor == hActiveCursor) return hActiveCursor;  /* No change */
 816     dprintf_cursor( stddeb, "SetCursor: %04x\n", hCursor );
 817     hOldCursor = hActiveCursor;
 818     hActiveCursor = hCursor;
 819     /* Change the cursor shape only if it is visible */
 820     if (CURSOR_ShowCount >= 0) CURSORICON_SetCursor( hActiveCursor );
 821     return hOldCursor;
 822 }
 823
 824
 825 /***********************************************************************
 826  *           SetCursorPos    (USER.70)
 827  */
 828 void SetCursorPos( short x, short y )
 829 {
 830     dprintf_cursor( stddeb, "SetCursorPos: x=%d y=%d\n", x, y );
 831     XWarpPointer( display, rootWindow, rootWindow, 0, 0, 0, 0, x, y );
 832 }
 833
 834
 835 /***********************************************************************
 836  *           ShowCursor    (USER.71)
 837  */
 838 int ShowCursor( BOOL bShow )
 839 {
 840     dprintf_cursor( stddeb, "ShowCursor: %d, count=%d\n",
 841                     bShow, CURSOR_ShowCount );
 842
 843     if (bShow)
 844     {
 845         if (++CURSOR_ShowCount == 0)
 846             CURSORICON_SetCursor( hActiveCursor );  /* Show it */
 847     }
 848     else
 849     {
 850         if (--CURSOR_ShowCount == -1)
 851             CURSORICON_SetCursor( 0 );  /* Hide it */
 852     }
 853     return CURSOR_ShowCount;
 854 }
 855
 856
 857 /***********************************************************************
 858  *           GetCursor    (USER.247)
 859  */
 860 HCURSOR GetCursor(void)
 861 {
 862     return hActiveCursor;
 863 }
 864
 865
 866 /***********************************************************************
 867  *           ClipCursor16    (USER.16)
 868  */
 869 BOOL16 ClipCursor16( const RECT16 *rect )
 870 {
 871     if (!rect) SetRectEmpty32( &CURSOR_ClipRect );
 872     else CONV_RECT16TO32( rect, &CURSOR_ClipRect );
 873     return TRUE;
 874 }
 875
 876
 877 /***********************************************************************
 878  *           ClipCursor32    (USER32.52)
 879  */
 880 BOOL32 ClipCursor32( const RECT32 *rect )
 881 {
 882     if (!rect) SetRectEmpty32( &CURSOR_ClipRect );
 883     else CopyRect32( &CURSOR_ClipRect, rect );
 884     return TRUE;
 885 }
 886
 887
 888 /***********************************************************************
 889  *           GetCursorPos16    (USER.17)
 890  */
 891 void GetCursorPos16( POINT16 *pt )
 892 {
 893     Window root, child;
 894     int rootX, rootY, childX, childY;
 895     unsigned int mousebut;
 896
 897     if (!pt) return;
 898     if (!XQueryPointer( display, rootWindow, &root, &child,
 899                         &rootX, &rootY, &childX, &childY, &mousebut ))
 900         pt->x = pt->y = 0;
 901     else
 902     {
 903         pt->x = rootX + desktopX;
 904         pt->y = rootY + desktopY;
 905     }
 906     dprintf_cursor(stddeb, "GetCursorPos: ret=%d,%d\n", pt->x, pt->y );
 907 }
 908
 909
 910 /***********************************************************************
 911  *           GetCursorPos32    (USER32.228)
 912  */
 913 void GetCursorPos32( POINT32 *pt )
 914 {
 915     POINT16 pt16;
 916     GetCursorPos16( &pt16 );
 917     if (pt) CONV_POINT16TO32( &pt16, pt );
 918 }
 919
 920
 921 /***********************************************************************
 922  *           GetClipCursor16    (USER.309)
 923  */
 924 void GetClipCursor16( RECT16 *rect )
 925 {
 926     if (rect) CONV_RECT32TO16( &CURSOR_ClipRect, rect );
 927 }
 928
 929
 930 /***********************************************************************
 931  *           GetClipCursor32    (USER32.220)
 932  */
 933 void GetClipCursor32( RECT32 *rect )
 934 {
 935     if (rect) CopyRect32( rect, &CURSOR_ClipRect );
 936 }
 937
 938
 939 /**********************************************************************
 940  *          GetIconID    (USER.455)
 941  */
 942 WORD GetIconID( HANDLE hResource, DWORD resType )
 943 {
 944     CURSORICONDIR *lpDir = LockResource(hResource);
 945
 946     if (!lpDir || lpDir->idReserved ||
 947         ((lpDir->idType != 1) && (lpDir->idType != 2)))
 948     {
 949         dprintf_cursor(stddeb,"GetIconID: invalid resource directory\n");
 950         return 0;
 951     }
 952
 953     dprintf_cursor( stddeb, "GetIconID: hRes=%04x, entries=%i\n",
 954                     hResource, lpDir->idCount );
 955
 956     switch(resType)
 957     {
 958     case 1:  /* cursor */
 959         {
 960             CURSORDIRENTRY *entry = CURSORICON_FindBestCursor( lpDir,
 961                                     SYSMETRICS_CXCURSOR, SYSMETRICS_CYCURSOR );
 962             return entry ? entry->wResId : 0;
 963         }
 964     case 3:  /* icon */
 965         {
 966             ICONDIRENTRY *entry = CURSORICON_FindBestIcon( lpDir,
 967                                           SYSMETRICS_CXICON, SYSMETRICS_CYICON,
 968                                           MIN( 16, 1 << screenDepth ) );
 969             return entry ? entry->wResId : 0;
 970         }
 971     }
 972     fprintf( stderr, "GetIconID: invalid res type %ld\n", resType );
 973     return 0;
 974 }
 975
 976
 977 /**********************************************************************
 978  *          LoadIconHandler    (USER.456)
 979  */
 980 HICON LoadIconHandler( HANDLE hResource, BOOL bNew )
 981 {
 982     dprintf_cursor(stddeb,"LoadIconHandler: hRes=%04x\n",hResource);
 983
 984     if( !bNew )
 985       {
 986         fprintf(stdnimp,"LoadIconHandler: 2.xx resources are not supported\n");
 987         return 0;
 988       }
 989     return CURSORICON_LoadHandler( hResource, 0, FALSE);
 990 }