windows/cursor.c

   1 /*
   2  *    WINE
   3 static char Copyright[] = "Copyright  Martin Ayotte, 1993";
   4 */
   5
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8 #include <string.h>
   9 #include <sys/types.h>
  10 #include <sys/stat.h>
  11 #include <fcntl.h>
  12 #include <unistd.h>
  13 #include <X11/cursorfont.h>
  14 #include <X11/Xlib.h>
  15 #include "windows.h"
  16 #include "win.h"
  17 #include "gdi.h"
  18 #include "neexe.h"
  19 #include "wine.h"
  20 #include "cursor.h"
  21 #include "stddebug.h"
  22 /* #define DEBUG_CURSOR   */
  23 /* #define DEBUG_RESOURCE */
  24 #include "debug.h"
  25 #include "arch.h"
  26
  27 static int ShowCursCount = 0;
  28 static HCURSOR hActiveCursor;
  29 static HCURSOR hEmptyCursor = 0;
  30 RECT    ClipCursorRect;
  31
  32 static struct { SEGPTR name; HCURSOR cursor; } system_cursor[] =
  33 {
  34     { IDC_ARROW, 0 },
  35     { IDC_IBEAM, 0 },
  36     { IDC_WAIT, 0 },
  37     { IDC_CROSS, 0 },
  38     { IDC_UPARROW, 0 },
  39     { IDC_SIZE, 0 },
  40     { IDC_ICON, 0 },
  41     { IDC_SIZENWSE, 0 },
  42     { IDC_SIZENESW, 0 },
  43     { IDC_SIZEWE, 0 },
  44     { IDC_SIZENS, 0 }
  45 };
  46
  47 #define NB_SYS_CURSORS  (sizeof(system_cursor)/sizeof(system_cursor[0]))
  48
  49
  50 /**********************************************************************
  51  *                      LoadCursor [USER.173]
  52  */
  53 HCURSOR LoadCursor(HANDLE instance, SEGPTR cursor_name)
  54 {
  55     HCURSOR     hCursor;
  56     HRSRC       hRsrc;
  57     HANDLE      rsc_mem;
  58     WORD        *lp;
  59     LONG        *lpl,size;
  60     CURSORDESCRIP *lpcurdesc;
  61     CURSORALLOC   *lpcur;
  62     HDC         hdc;
  63     int i;
  64     unsigned char *cp1,*cp2;
  65     dprintf_resource(stddeb,"LoadCursor: instance = %04x, name = %08lx\n",
  66            instance, cursor_name);
  67     if (!instance)
  68     {
  69         for (i = 0; i < NB_SYS_CURSORS; i++)
  70             if (system_cursor[i].name == cursor_name)
  71             {
  72                 if (system_cursor[i].cursor) return system_cursor[i].cursor;
  73                 else break;
  74             }
  75         if (i == NB_SYS_CURSORS) return 0;
  76     }
  77     hCursor = GlobalAlloc(GMEM_MOVEABLE, sizeof(CURSORALLOC) + 1024L);
  78     if (hCursor == (HCURSOR)NULL) return 0;
  79     if (!instance) system_cursor[i].cursor = hCursor;
  80
  81     dprintf_cursor(stddeb,"LoadCursor Alloc hCursor=%X\n", hCursor);
  82     lpcur = (CURSORALLOC *)GlobalLock(hCursor);
  83     memset(lpcur, 0, sizeof(CURSORALLOC));
  84     if (instance == (HANDLE)NULL) {
  85         switch((LONG)cursor_name) {
  86             case IDC_ARROW:
  87                 lpcur->xcursor = XCreateFontCursor(display, XC_top_left_arrow);
  88                 GlobalUnlock(hCursor);
  89                 return hCursor;
  90             case IDC_CROSS:
  91                 lpcur->xcursor = XCreateFontCursor(display, XC_crosshair);
  92                 GlobalUnlock(hCursor);
  93                 return hCursor;
  94             case IDC_IBEAM:
  95                 lpcur->xcursor = XCreateFontCursor(display, XC_xterm);
  96                 GlobalUnlock(hCursor);
  97                 return hCursor;
  98             case IDC_WAIT:
  99                 lpcur->xcursor = XCreateFontCursor(display, XC_watch);
 100                 GlobalUnlock(hCursor);
 101                 return hCursor;
 102             case IDC_SIZENS:
 103                 lpcur->xcursor = XCreateFontCursor(display, XC_sb_v_double_arrow);
 104                 GlobalUnlock(hCursor);
 105                 return hCursor;
 106             case IDC_SIZEWE:
 107                 lpcur->xcursor = XCreateFontCursor(display, XC_sb_h_double_arrow);
 108                 GlobalUnlock(hCursor);
 109                 return hCursor;
 110             case IDC_SIZENWSE:
 111             case IDC_SIZENESW:
 112                 lpcur->xcursor = XCreateFontCursor(display, XC_fleur);
 113                 GlobalUnlock(hCursor);
 114                 return hCursor;
 115             default:
 116                 break;
 117             }
 118         }
 119
 120 #if 0
 121     /* this code replaces all bitmap cursors with the default cursor */
 122     lpcur->xcursor = XCreateFontCursor(display, XC_top_left_arrow);
 123     GlobalUnlock(hCursor);
 124     return hCursor;
 125 #endif
 126
 127     if (!(hdc = GetDC(0))) return 0;
 128     if (!(hRsrc = FindResource( instance, cursor_name, RT_GROUP_CURSOR )))
 129     {
 130         ReleaseDC(0, hdc);
 131         return 0;
 132     }
 133     rsc_mem = LoadResource(instance, hRsrc );
 134     if (rsc_mem == (HANDLE)NULL) {
 135     fprintf(stderr,"LoadCursor / Cursor %08lx not Found !\n", cursor_name);
 136         ReleaseDC(0, hdc);
 137         return 0;
 138         }
 139     lp = (WORD *)LockResource(rsc_mem);
 140     if (lp == NULL) {
 141         FreeResource( rsc_mem );
 142         ReleaseDC(0, hdc);
 143         return 0;
 144         }
 145     lpcurdesc = (CURSORDESCRIP *)(lp + 3);
 146 #if 0
 147     dprintf_cursor(stddeb,"LoadCursor / curReserved=%X\n", *lp);
 148     dprintf_cursor(stddeb,"LoadCursor / curResourceType=%X\n", *(lp + 1));
 149     dprintf_cursor(stddeb,"LoadCursor / curResourceCount=%X\n", *(lp + 2));
 150     dprintf_cursor(stddeb,"LoadCursor / cursor Width=%d\n",
 151                 (int)lpcurdesc->Width);
 152     dprintf_cursor(stddeb,"LoadCursor / cursor Height=%d\n",
 153                 (int)lpcurdesc->Height);
 154     dprintf_cursor(stddeb,"LoadCursor / cursor curXHotspot=%d\n",
 155                 (int)lpcurdesc->curXHotspot);
 156     dprintf_cursor(stddeb,"LoadCursor / cursor curYHotspot=%d\n",
 157                 (int)lpcurdesc->curYHotspot);
 158     dprintf_cursor(stddeb,"LoadCursor / cursor curDIBSize=%lX\n",
 159                 (DWORD)lpcurdesc->curDIBSize);
 160     dprintf_cursor(stddeb,"LoadCursor / cursor curDIBOffset=%lX\n",
 161                 (DWORD)lpcurdesc->curDIBOffset);
 162 #endif
 163     lpcur->descriptor = *lpcurdesc;
 164     FreeResource( rsc_mem );
 165     if (!(hRsrc = FindResource( instance,
 166                                 MAKEINTRESOURCE(lpcurdesc->curDIBOffset),
 167                                 RT_CURSOR )))
 168     {
 169         ReleaseDC(0, hdc);
 170         return 0;
 171     }
 172     rsc_mem = LoadResource(instance, hRsrc );
 173     if (rsc_mem == (HANDLE)NULL) {
 174         fprintf(stderr,
 175                 "LoadCursor / Cursor %08lx Bitmap not Found !\n", cursor_name);
 176         ReleaseDC(0, hdc);
 177         return 0;
 178         }
 179     lpl = (LONG *)LockResource(rsc_mem);
 180     lpl++;
 181     size = CONV_LONG (*lpl);
 182     if (size == sizeof(BITMAPCOREHEADER)){
 183         CONV_BITMAPCOREHEADER (lpl);
 184         ((BITMAPINFOHEADER *)lpl)->biHeight /= 2;
 185         lpcur->hBitmap = ConvertCoreBitmap( hdc, (BITMAPCOREHEADER *) lpl );
 186     } else if (size == sizeof(BITMAPINFOHEADER)){
 187         CONV_BITMAPINFO (lpl);
 188         ((BITMAPINFOHEADER *)lpl)->biHeight /= 2;
 189         lpcur->hBitmap = ConvertInfoBitmap( hdc, (BITMAPINFO *) lpl );
 190     } else  {
 191       fprintf(stderr,"No bitmap for cursor?\n");
 192       lpcur->hBitmap = 0;
 193     }
 194     lpl = (char *)lpl + size + 8;
 195   /* This is rather strange! The data is stored *BACKWARDS* and       */
 196   /* mirrored! But why?? FIXME: the image must be flipped at the Y    */
 197   /* axis, either here or in CreateCusor(); */
 198     size = lpcur->descriptor.Height/2 * ((lpcur->descriptor.Width+7)/8);
 199 #if 0
 200     dprintf_cursor(stddeb,"Before:\n");
 201     for(i=0;i<2*size;i++)  {
 202       dprintf_cursor(stddeb,"%02x ",((unsigned char *)lpl)[i]);
 203       if ((i & 7) == 7) dprintf_cursor(stddeb,"\n");
 204     }
 205 #endif
 206     cp1 = (char *)lpl;
 207     cp2 = cp1+2*size;
 208     for(i = 0; i < size; i++)  {
 209       char tmp=*--cp2;
 210       *cp2 = *cp1;
 211       *cp1++ = tmp;
 212     }
 213 #if 0
 214     dprintf_cursor(stddeb,"After:\n");
 215     for(i=0;i<2*size;i++)  {
 216       dprintf_cursor(stddeb,"%02x ",((unsigned char *)lpl)[i]);
 217       if ((i & 7) == 7) dprintf_cursor(stddeb,"\n");
 218     }
 219 #endif
 220     hCursor = CreateCursor(instance, lpcur->descriptor.curXHotspot,
 221         lpcur->descriptor.curYHotspot, lpcur->descriptor.Width,
 222         lpcur->descriptor.Height/2,
 223         (LPSTR)lpl, ((LPSTR)lpl)+size);
 224
 225     FreeResource( rsc_mem );
 226     GlobalUnlock(hCursor);
 227     ReleaseDC(0,hdc);
 228     return hCursor;
 229 }
 230
 231
 232
 233 /**********************************************************************
 234  *                      CreateCursor [USER.406]
 235  */
 236 HCURSOR CreateCursor(HANDLE instance, short nXhotspot, short nYhotspot,
 237         short nWidth, short nHeight, LPSTR lpANDbitPlane, LPSTR lpXORbitPlane)
 238 {
 239     HCURSOR     hCursor;
 240     CURSORALLOC   *lpcur;
 241     HDC         hdc;
 242     int         bpllen = (nWidth + 7)/8 * nHeight;
 243     char        *tmpbpl = malloc(bpllen);
 244     int         i;
 245
 246     XColor bkcolor,fgcolor;
 247     Colormap cmap = XDefaultColormap(display,XDefaultScreen(display));
 248
 249     dprintf_resource(stddeb,"CreateCursor: inst=%04x nXhotspot=%d  nYhotspot=%d nWidth=%d nHeight=%d\n",
 250        instance, nXhotspot, nYhotspot, nWidth, nHeight);
 251     dprintf_resource(stddeb,"CreateCursor: inst=%04x lpANDbitPlane=%p lpXORbitPlane=%p\n",
 252         instance, lpANDbitPlane, lpXORbitPlane);
 253
 254     if (!(hdc = GetDC(GetDesktopWindow()))) return 0;
 255     hCursor = GlobalAlloc(GMEM_MOVEABLE, sizeof(CURSORALLOC) + 1024L);
 256     if (hCursor == (HCURSOR)NULL) {
 257         ReleaseDC(GetDesktopWindow(), hdc);
 258         return 0;
 259         }
 260     dprintf_cursor(stddeb,"CreateCursor Alloc hCursor=%X\n", hCursor);
 261     lpcur = (CURSORALLOC *)GlobalLock(hCursor);
 262     memset(lpcur, 0, sizeof(CURSORALLOC));
 263     lpcur->descriptor.curXHotspot = nXhotspot;
 264     lpcur->descriptor.curYHotspot = nYhotspot;
 265     for(i=0; i<bpllen; i++) tmpbpl[i] = ~lpANDbitPlane[i];
 266     lpcur->pixmask = XCreatePixmapFromBitmapData(
 267         display, DefaultRootWindow(display),
 268         tmpbpl, nWidth, nHeight, 1, 0, 1);
 269     for(i=0; i<bpllen; i++) tmpbpl[i] ^= lpXORbitPlane[i];
 270     lpcur->pixshape = XCreatePixmapFromBitmapData(
 271         display, DefaultRootWindow(display),
 272         tmpbpl, nWidth, nHeight, 1, 0, 1);
 273     XParseColor(display,cmap,"#000000",&fgcolor);
 274     XParseColor(display,cmap,"#ffffff",&bkcolor);
 275     lpcur->xcursor = XCreatePixmapCursor(display,
 276         lpcur->pixshape, lpcur->pixmask,
 277         &fgcolor, &bkcolor, lpcur->descriptor.curXHotspot,
 278         lpcur->descriptor.curYHotspot);
 279     free(tmpbpl);
 280     XFreePixmap(display, lpcur->pixshape);
 281     XFreePixmap(display, lpcur->pixmask);
 282     ReleaseDC(GetDesktopWindow(), hdc);
 283     GlobalUnlock(hCursor);
 284     return hCursor;
 285 }
 286
 287
 288
 289 /**********************************************************************
 290  *                      DestroyCursor [USER.458]
 291  */
 292 BOOL DestroyCursor(HCURSOR hCursor)
 293 {
 294     CURSORALLOC *lpcur;
 295     if (hCursor == (HCURSOR)NULL) return FALSE;
 296     lpcur = (CURSORALLOC *)GlobalLock(hCursor);
 297     if (lpcur->hBitmap != (HBITMAP)NULL) DeleteObject(lpcur->hBitmap);
 298     GlobalUnlock(hCursor);
 299     GlobalFree(hCursor);
 300     return TRUE;
 301 }
 302
 303
 304 /**********************************************************************
 305  *         CURSOR_SetCursor
 306  *
 307  * Internal helper function for SetCursor() and ShowCursor().
 308  */
 309 static void CURSOR_SetCursor( HCURSOR hCursor )
 310 {
 311     CURSORALLOC *lpcur;
 312
 313     if (!(lpcur = (CURSORALLOC *)GlobalLock(hCursor))) return;
 314     if (rootWindow != DefaultRootWindow(display))
 315     {
 316         XDefineCursor( display, rootWindow, lpcur->xcursor );
 317     }
 318     else
 319     {
 320         HWND hwnd = GetWindow( GetDesktopWindow(), GW_CHILD );
 321         while(hwnd)
 322         {
 323             Window win = WIN_GetXWindow( hwnd );
 324             if (win) XDefineCursor( display, win, lpcur->xcursor );
 325             hwnd = GetWindow( hwnd, GW_HWNDNEXT );
 326         }
 327     }
 328     GlobalUnlock( hCursor );
 329 }
 330
 331 /**********************************************************************
 332  *                      SetCursor [USER.69]
 333  */
 334 HCURSOR SetCursor(HCURSOR hCursor)
 335 {
 336     HCURSOR hOldCursor;
 337
 338     dprintf_cursor(stddeb,"SetCursor / hCursor=%04X !\n", hCursor);
 339     hOldCursor = hActiveCursor;
 340     hActiveCursor = hCursor;
 341     if ((hCursor != hOldCursor) || (ShowCursCount < 0))
 342     {
 343         CURSOR_SetCursor( hCursor );
 344     }
 345     ShowCursCount = 0;
 346     return hOldCursor;
 347 }
 348
 349
 350 /**********************************************************************
 351  *                      GetCursor [USER.247]
 352  */
 353 HCURSOR GetCursor(void)
 354 {
 355     return hActiveCursor;
 356 }
 357
 358
 359 /**********************************************************************
 360  *                        SetCursorPos [USER.70]
 361  */
 362 void SetCursorPos(short x, short y)
 363 {
 364     dprintf_cursor(stddeb,"SetCursorPos // x=%d y=%d\n", x, y);
 365     XWarpPointer( display, None, rootWindow, 0, 0, 0, 0, x, y );
 366 }
 367
 368
 369 /**********************************************************************
 370  *                        GetCursorPos [USER.17]
 371  */
 372 void GetCursorPos(LPPOINT lpRetPoint)
 373 {
 374     Window      root, child;
 375     int         rootX, rootY;
 376     int         childX, childY;
 377     unsigned int mousebut;
 378
 379     if (!lpRetPoint) return;
 380     if (!XQueryPointer( display, rootWindow, &root, &child,
 381                         &rootX, &rootY, &childX, &childY, &mousebut ))
 382         lpRetPoint->x = lpRetPoint->y = 0;
 383     else
 384     {
 385         lpRetPoint->x = rootX + desktopX;
 386         lpRetPoint->y = rootY + desktopY;
 387     }
 388     dprintf_cursor(stddeb,
 389                 "GetCursorPos // x=%d y=%d\n", lpRetPoint->x, lpRetPoint->y);
 390 }
 391
 392
 393 /**********************************************************************
 394  *                      ShowCursor [USER.71]
 395  */
 396 int ShowCursor(BOOL bShow)
 397 {
 398     dprintf_cursor(stddeb, "ShowCursor(%d), count=%d\n", bShow, ShowCursCount);
 399
 400     if (bShow)
 401     {
 402         if (++ShowCursCount == 0)  /* Time to show it */
 403             CURSOR_SetCursor( hActiveCursor );
 404     }
 405     else  /* Hide it */
 406     {
 407         if (--ShowCursCount == -1)  /* Time to hide it */
 408         {
 409             if (!hEmptyCursor)
 410                 hEmptyCursor = CreateCursor( 0, 1, 1, 1, 1,
 411                                              "\xFF\xFF", "\xFF\xFF" );
 412             CURSOR_SetCursor( hEmptyCursor );
 413         }
 414     }
 415     return 0;
 416 }
 417
 418
 419 /**********************************************************************
 420  *                        ClipCursor [USER.16]
 421  */
 422 void ClipCursor(LPRECT lpNewClipRect)
 423 {
 424     if (!lpNewClipRect) SetRectEmpty( &ClipCursorRect );
 425     else CopyRect( &ClipCursorRect, lpNewClipRect );
 426 }
 427
 428
 429 /**********************************************************************
 430  *                        GetClipCursor [USER.309]
 431  */
 432 void GetClipCursor(LPRECT lpRetClipRect)
 433 {
 434     if (lpRetClipRect != NULL)
 435         CopyRect(lpRetClipRect, &ClipCursorRect);
 436 }
 437
 438
 439
 440