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Annotation of researchv9/X11/src/X.V11R1/lib/Xtk/Cursors.c, revision 1.1.1.1

1.1       root        1: #ifndef lint
                      2: static char rcsid[] = "$Header: Cursors.c,v 1.3 87/09/11 21:19:01 haynes Rel $";
                      3: #endif lint
                      4: 
                      5: /*
                      6:  * Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
                      7:  * 
                      8:  *                         All Rights Reserved
                      9:  * 
                     10:  * Permission to use, copy, modify, and distribute this software and its 
                     11:  * documentation for any purpose and without fee is hereby granted, 
                     12:  * provided that the above copyright notice appear in all copies and that
                     13:  * both that copyright notice and this permission notice appear in 
                     14:  * supporting documentation, and that the name of Digital Equipment
                     15:  * Corporation not be used in advertising or publicity pertaining to
                     16:  * distribution of the software without specific, written prior permission.  
                     17:  * 
                     18:  * 
                     19:  * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
                     20:  * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
                     21:  * DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
                     22:  * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
                     23:  * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
                     24:  * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
                     25:  * SOFTWARE.
                     26:  */
                     27: #include "Xlib.h"
                     28: #include "Intrinsic.h"
                     29: 
                     30: static Cursor  *cursorarray = NULL;
                     31: static int     numcursors = 0;
                     32: 
                     33: static Boolean initialized = FALSE;
                     34: 
                     35: 
                     36: void CursorsInitialize()
                     37: {
                     38:     if (initialized)
                     39:        return;
                     40:     initialized = TRUE;
                     41:     numcursors = 1;
                     42:     cursorarray = (Cursor *) XtMalloc((unsigned)sizeof(Cursor));
                     43:     *cursorarray = NULL;
                     44: }
                     45: 
                     46: Cursor XtGetCursor(dpy, num)
                     47:     Display *dpy;
                     48:     int num;
                     49: {
                     50:     if (num >= numcursors) {
                     51:        cursorarray = (Cursor *) XtRealloc((char *)cursorarray,
                     52:                                        (unsigned) (num + 1) * sizeof(Cursor));
                     53:        for (; numcursors <= num ; numcursors++)
                     54:            cursorarray[numcursors] = NULL;
                     55:     }
                     56:     if (cursorarray[num] == NULL)
                     57:        cursorarray[num] = XCreateFontCursor(dpy, (unsigned) num);
                     58:     return cursorarray[num];
                     59: }

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