/* $XConsortium: StrToCurs.c,v 1.20 93/08/16 14:45:48 rws Exp $ */ /* Copyright (c) 1987, 1988 X Consortium Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Except as contained in this notice, the name of the X Consortium shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from the X Consortium. */ /*********************************************************** Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts. All Rights Reserved Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of Digital not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ******************************************************************/ #include #include #include #include #ifndef X_NOT_POSIX #ifdef _POSIX_SOURCE #include #else #define _POSIX_SOURCE #include #undef _POSIX_SOURCE #endif #endif /* X_NOT_POSIX */ #ifndef PATH_MAX #ifdef WIN32 #define PATH_MAX 512 #else #include #endif #ifndef PATH_MAX #ifdef MAXPATHLEN #define PATH_MAX MAXPATHLEN #else #define PATH_MAX 1024 #endif #endif #endif /* PATH_MAX */ /* Kludge source to avoid encountering broken shared library linkers which insist on resolving references unused by the application, and broken object file formats that don't correctly distinguish references to procedures from references to data. */ #if defined(SUNSHLIB) || defined(SVR4) #define XMU_KLUDGE #endif /* * XmuConvertStringToCursor: * * allows String to specify a standard cursor name (from cursorfont.h), a * font name and glyph index of the form "FONT fontname index [[font] index]", * or a bitmap file name (absolute, or relative to the global resource * bitmapFilePath, class BitmapFilePath). If the resource is not * defined, the default value is the build symbol BITMAPDIR. * * shares lots of code with XmuCvtStringToPixmap, but unfortunately * can't use it as the hotspot info is lost. * * To use, include the following in your ClassInitialize procedure: static XtConvertArgRec screenConvertArg[] = { {XtBaseOffset, (XtPointer) XtOffsetOf(WidgetRec, core.screen), sizeof(Screen *)} }; XtAddConverter(XtRString, XtRCursor, XmuCvtStringToCursor, screenConvertArg, XtNumber(screenConvertArg)); * */ #define done(address, type) \ { (*toVal).size = sizeof(type); (*toVal).addr = (XPointer) address; } #define FONTSPECIFIER "FONT " /*ARGSUSED*/ void XmuCvtStringToCursor(args, num_args, fromVal, toVal) XrmValuePtr args; Cardinal *num_args; XrmValuePtr fromVal; XrmValuePtr toVal; { static Cursor cursor; /* static for cvt magic */ char *name = (char *)fromVal->addr; Screen *screen; register int i; char maskname[PATH_MAX]; Pixmap source, mask; /* XXX - make fg/bg resources */ static XColor bgColor = {0, 0xffff, 0xffff, 0xffff}; static XColor fgColor = {0, 0, 0, 0}; int xhot, yhot; int len; if (*num_args != 1) XtErrorMsg("wrongParameters","cvtStringToCursor","XtToolkitError", "String to cursor conversion needs screen argument", (String *)NULL, (Cardinal *)NULL); screen = *((Screen **) args[0].addr); if (0 == strncmp(FONTSPECIFIER, name, strlen(FONTSPECIFIER))) { char source_name[PATH_MAX], mask_name[PATH_MAX]; int source_char, mask_char, fields; Font source_font, mask_font; XrmValue fromString, toFont; XrmValue cvtArg; Boolean success; Display *dpy = DisplayOfScreen(screen); #ifdef XMU_KLUDGE Cardinal num; #endif fields = sscanf(name, "FONT %s %d %s %d", source_name, &source_char, mask_name, &mask_char); if (fields < 2) { XtStringConversionWarning(name, XtRCursor); return; } fromString.addr = source_name; fromString.size = strlen(source_name) + 1; toFont.addr = (XPointer) &source_font; toFont.size = sizeof(Font); cvtArg.addr = (XPointer) &dpy; cvtArg.size = sizeof(Display *); /* XXX using display of screen argument as message display */ #ifdef XMU_KLUDGE /* XXX Sacrifice caching */ num = 1; success = XtCvtStringToFont(dpy, &cvtArg, &num, &fromString, &toFont, NULL); #else success = XtCallConverter(dpy, XtCvtStringToFont, &cvtArg, (Cardinal)1, &fromString, &toFont, NULL); #endif if (!success) { XtStringConversionWarning(name, XtRCursor); return; } switch (fields) { case 2: /* defaulted mask font & char */ mask_font = source_font; mask_char = source_char; break; case 3: /* defaulted mask font */ mask_font = source_font; mask_char = atoi(mask_name); break; case 4: /* specified mask font & char */ fromString.addr = mask_name; fromString.size = strlen(mask_name) + 1; toFont.addr = (XPointer) &mask_font; toFont.size = sizeof(Font); /* XXX using display of screen argument as message display */ #ifdef XMU_KLUDGE /* XXX Sacrifice caching */ num = 1; success = XtCvtStringToFont(dpy, &cvtArg, &num, &fromString, &toFont, NULL); #else success = XtCallConverter(dpy, XtCvtStringToFont, &cvtArg, (Cardinal)1, &fromString, &toFont, NULL); #endif if (!success) { XtStringConversionWarning(name, XtRCursor); return; } } cursor = XCreateGlyphCursor( DisplayOfScreen(screen), source_font, mask_font, source_char, mask_char, &fgColor, &bgColor ); done(&cursor, Cursor); return; } i = XmuCursorNameToIndex (name); if (i != -1) { cursor = XCreateFontCursor (DisplayOfScreen(screen), i); done(&cursor, Cursor); return; } if ((source = XmuLocateBitmapFile (screen, name, maskname, (sizeof maskname) - 4, NULL, NULL, &xhot, &yhot)) == None) { XtStringConversionWarning (name, XtRCursor); } len = strlen (maskname); for (i = 0; i < 2; i++) { strcpy (maskname + len, i == 0 ? "Mask" : "msk"); if ((mask = XmuLocateBitmapFile (screen, maskname, NULL, 0, NULL, NULL, NULL, NULL)) != None) break; } cursor = XCreatePixmapCursor( DisplayOfScreen(screen), source, mask, &fgColor, &bgColor, xhot, yhot ); XFreePixmap( DisplayOfScreen(screen), source ); if (mask != None) XFreePixmap( DisplayOfScreen(screen), mask ); done(&cursor, Cursor); } #define new_done(type, value) \ { \ if (toVal->addr != NULL) { \ if (toVal->size < sizeof(type)) { \ toVal->size = sizeof(type); \ return False; \ } \ *(type*)(toVal->addr) = (value); \ } \ else { \ static type static_val; \ static_val = (value); \ toVal->addr = (XPointer)&static_val; \ } \ toVal->size = sizeof(type); \ return True; \ } /* Function Name: XmuCvtStringToColorCursor * Description: Converts a string into a colored cursor. * Arguments: dpy * args - an argument list (see below). * num_args - number of elements in the argument list. * fromVal - value to convert from. * toVal - value to convert to. * data * Returns: True or False */ /*ARGSUSED*/ Boolean XmuCvtStringToColorCursor(dpy, args, num_args, fromVal, toVal, converter_data) Display *dpy; XrmValuePtr args; Cardinal *num_args; XrmValuePtr fromVal; XrmValuePtr toVal; XtPointer *converter_data; /* unused */ { Cursor cursor; Pixel fg, bg; Colormap c_map; XColor colors[2]; Cardinal number; XrmValue ret_val; if (*num_args != 4) { XtAppWarningMsg(XtDisplayToApplicationContext(dpy), "wrongParameters","cvtStringToColorCursor","XmuError", "String to color cursor conversion needs four arguments", (String *)NULL, (Cardinal *)NULL); return False; } fg = *((Pixel *) args[1].addr); bg = *((Pixel *) args[2].addr); c_map = *((Colormap *) args[3].addr); number = 1; XmuCvtStringToCursor(args, &number, fromVal, &ret_val); cursor = *((Cursor *) ret_val.addr); if (cursor == None) new_done(Cursor, cursor); colors[0].pixel = fg; colors[1].pixel = bg; XQueryColors (dpy, c_map, colors, 2); XRecolorCursor(dpy, cursor, colors, colors + 1); new_done(Cursor, cursor); }