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Diffstat (limited to 'libXmu/src/StrToCurs.c')
| -rw-r--r-- | libXmu/src/StrToCurs.c | 351 |
1 files changed, 351 insertions, 0 deletions
diff --git a/libXmu/src/StrToCurs.c b/libXmu/src/StrToCurs.c new file mode 100644 index 000000000..7f13c0d4e --- /dev/null +++ b/libXmu/src/StrToCurs.c @@ -0,0 +1,351 @@ +/* $Xorg: StrToCurs.c,v 1.4 2001/02/09 02:03:53 xorgcvs Exp $ */ + +/* + +Copyright 1987, 1988, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +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 +OPEN GROUP 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 Open Group 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 Open Group. + +*/ + +/*********************************************************** + +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. + +******************************************************************/ + +/* $XFree86: xc/lib/Xmu/StrToCurs.c,v 1.11 2002/09/19 13:21:58 tsi Exp $ */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include <X11/Intrinsic.h> +#include <X11/StringDefs.h> +#include <X11/Xmu/Converters.h> +#include <X11/Xmu/Drawing.h> +#include <X11/Xmu/CurUtil.h> +#include <X11/Xmu/CharSet.h> + +#ifndef X_NOT_POSIX +#include <stdlib.h> +#ifdef _POSIX_SOURCE +#include <limits.h> +#else +#define _POSIX_SOURCE +#include <limits.h> +#undef _POSIX_SOURCE +#endif +#endif /* X_NOT_POSIX */ +#ifndef PATH_MAX +#ifdef WIN32 +#define PATH_MAX 512 +#else +#include <sys/param.h> +#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(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 = 0; + /* 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); + + if (XmuCompareISOLatin1(name, "None") == 0) + { + cursor = None; + done(&cursor, Cursor); + return; + } + + 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); + char *strspec = NULL; +#ifdef XMU_KLUDGE + Cardinal num; +#endif + + strspec = XtMalloc(strlen("FONT %s %d %s %d") + 21); + sprintf(strspec, "FONT %%%lds %%d %%%lds %%d", + (unsigned long)sizeof(source_name) - 1, + (unsigned long)sizeof(mask_name) - 1); + fields = sscanf(name, strspec, + source_name, &source_char, + mask_name, &mask_char); + XtFree(strspec); + 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); + cursor = None; + done(&cursor, Cursor); + return; + } + 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(Display *dpy, XrmValuePtr args, Cardinal *num_args, + XrmValuePtr fromVal, XrmValuePtr toVal, + XtPointer *converter_data) +{ + Cursor cursor; + Screen *screen; + 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; + } + + screen = *((Screen **) args[0].addr); + 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 || (fg == BlackPixelOfScreen(screen) + && bg == WhitePixelOfScreen(screen))) + 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); +} + + + |