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Diffstat (limited to 'src/glut/beos/beos_x11.cpp')
| -rw-r--r-- | src/glut/beos/beos_x11.cpp | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/src/glut/beos/beos_x11.cpp b/src/glut/beos/beos_x11.cpp new file mode 100644 index 0000000000..20c75036d5 --- /dev/null +++ b/src/glut/beos/beos_x11.cpp @@ -0,0 +1,176 @@ + +/* Copyright (c) Nate Robins, 1997. */ + +/* This program is freely distributable without licensing fees + and is provided without guarantee or warrantee expressed or + implied. This program is -not- in the public domain. */ + +#include <Screen.h> +#include <stdio.h> +#include "beos_x11.h" + +/* NOTE: These functions require a BApplication to be instantiated first */ +int DisplayWidth() { + BScreen s; + return s.Frame().IntegerWidth() + 1; +} + +int DisplayHeight() { + BScreen s; + return s.Frame().IntegerHeight() + 1; +} + +/* the following function was stolen from the X sources as indicated. */ + +/* Copyright Massachusetts Institute of Technology 1985, 1986, 1987 */ +/* $XConsortium: XParseGeom.c,v 11.18 91/02/21 17:23:05 rws Exp $ */ + +/* +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, and that the name of M.I.T. not be used in advertising or +publicity pertaining to distribution of the software without specific, +written prior permission. M.I.T. makes no representations about the +suitability of this software for any purpose. It is provided "as is" +without express or implied warranty. +*/ + +/* + *Returns pointer to first char ins search which is also in what, else NULL. + */ +static char *strscan (char *search, char *what) +{ + int i, len = strlen (what); + char c; + + while ((c = *(search++)) != (int)NULL) + for (i = 0; i < len; i++) + if (c == what [i]) + return (--search); + return (NULL); +} + +/* + * XParseGeometry parses strings of the form + * "=<width>x<height>{+-}<xoffset>{+-}<yoffset>", where + * width, height, xoffset, and yoffset are unsigned integers. + * Example: "=80x24+300-49" + * The equal sign is optional. + * It returns a bitmask that indicates which of the four values + * were actually found in the string. For each value found, + * the corresponding argument is updated; for each value + * not found, the corresponding argument is left unchanged. + */ + +static int +ReadInteger(char *string, char **NextString) +{ + register int Result = 0; + int Sign = 1; + + if (*string == '+') + string++; + else if (*string == '-') + { + string++; + Sign = -1; + } + for (; (*string >= '0') && (*string <= '9'); string++) + { + Result = (Result * 10) + (*string - '0'); + } + *NextString = string; + if (Sign >= 0) + return (Result); + else + return (-Result); +} + +int XParseGeometry (char *string, int *x, int *y, + unsigned int *width, unsigned int *height) +{ + int mask = NoValue; + register char *strind; + unsigned int tempWidth=0, tempHeight=0; + int tempX=0, tempY=0; + char *nextCharacter; + + if ( (string == NULL) || (*string == '\0')) return(mask); + if (*string == '=') + string++; /* ignore possible '=' at beg of geometry spec */ + + strind = (char *)string; + if (*strind != '+' && *strind != '-' && *strind != 'x') { + tempWidth = ReadInteger(strind, &nextCharacter); + if (strind == nextCharacter) + return (0); + strind = nextCharacter; + mask |= WidthValue; + } + + if (*strind == 'x' || *strind == 'X') { + strind++; + tempHeight = ReadInteger(strind, &nextCharacter); + if (strind == nextCharacter) + return (0); + strind = nextCharacter; + mask |= HeightValue; + } + + if ((*strind == '+') || (*strind == '-')) { + if (*strind == '-') { + strind++; + tempX = -ReadInteger(strind, &nextCharacter); + if (strind == nextCharacter) + return (0); + strind = nextCharacter; + mask |= XNegative; + + } + else + { strind++; + tempX = ReadInteger(strind, &nextCharacter); + if (strind == nextCharacter) + return(0); + strind = nextCharacter; + } + mask |= XValue; + if ((*strind == '+') || (*strind == '-')) { + if (*strind == '-') { + strind++; + tempY = -ReadInteger(strind, &nextCharacter); + if (strind == nextCharacter) + return(0); + strind = nextCharacter; + mask |= YNegative; + + } + else + { + strind++; + tempY = ReadInteger(strind, &nextCharacter); + if (strind == nextCharacter) + return(0); + strind = nextCharacter; + } + mask |= YValue; + } + } + + /* If strind isn't at the end of the string the it's an invalid + geometry specification. */ + + if (*strind != '\0') return (0); + + if (mask & XValue) + *x = tempX; + if (mask & YValue) + *y = tempY; + if (mask & WidthValue) + *width = tempWidth; + if (mask & HeightValue) + *height = tempHeight; + return (mask); +} |