From afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1c Mon Sep 17 00:00:00 2001 From: jtg Date: Thu, 19 Aug 1999 00:55:39 +0000 Subject: Initial revision --- progs/xdemos/xfont.c | 148 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 148 insertions(+) create mode 100644 progs/xdemos/xfont.c (limited to 'progs/xdemos/xfont.c') diff --git a/progs/xdemos/xfont.c b/progs/xdemos/xfont.c new file mode 100644 index 0000000000..31bfb4bf94 --- /dev/null +++ b/progs/xdemos/xfont.c @@ -0,0 +1,148 @@ +/* + * (c) Copyright 1993, Silicon Graphics, Inc. + * ALL RIGHTS RESERVED + * Permission to use, copy, modify, and distribute this software for + * any purpose and without fee is hereby granted, provided that the above + * copyright notice appear in all copies and that both the copyright notice + * and this permission notice appear in supporting documentation, and that + * the name of Silicon Graphics, Inc. not be used in advertising + * or publicity pertaining to distribution of the software without specific, + * written prior permission. + * + * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS" + * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE, + * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR + * FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON + * GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT, + * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY + * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION, + * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF + * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN + * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE + * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE. + * + * US Government Users Restricted Rights + * Use, duplication, or disclosure by the Government is subject to + * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph + * (c)(1)(ii) of the Rights in Technical Data and Computer Software + * clause at DFARS 252.227-7013 and/or in similar or successor + * clauses in the FAR or the DOD or NASA FAR Supplement. + * Unpublished-- rights reserved under the copyright laws of the + * United States. Contractor/manufacturer is Silicon Graphics, + * Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311. + * + * OpenGL(TM) is a trademark of Silicon Graphics, Inc. + */ +/* + * xfont.c + * Draws some text in a bitmapped font. Uses glBitmap() + * and other pixel routines. Also demonstrates use of + * display lists. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include "glaux.h" + +GLuint base; + +void makeRasterFont(void) +{ + XFontStruct *fontInfo; + Font id; + unsigned int first, last; + Display *xdisplay; + + xdisplay = auxXDisplay (); + fontInfo = XLoadQueryFont(xdisplay, + "-adobe-helvetica-medium-r-normal--17-120-100-100-p-88-iso8859-1"); + if (fontInfo == NULL) { + printf ("no font found\n"); + exit (0); + } + + id = fontInfo->fid; + first = fontInfo->min_char_or_byte2; + last = fontInfo->max_char_or_byte2; + + base = glGenLists((GLuint) last+1); + if (base == 0) { + printf ("out of display lists\n"); + exit (0); + } + glXUseXFont(id, first, last-first+1, base+first); +/* *height = fontInfo->ascent + fontInfo->descent; + *width = fontInfo->max_bounds.width; */ +} + +void printString(char *s) +{ + glPushAttrib (GL_LIST_BIT); + glListBase(base); + glCallLists(strlen(s), GL_UNSIGNED_BYTE, (GLubyte *)s); + glPopAttrib (); +} + +void myinit (void) +{ + makeRasterFont (); + glShadeModel (GL_FLAT); +} + +void display(void) +{ + GLfloat white[3] = { 1.0, 1.0, 1.0 }; + int i, j; + char teststring[33]; + + glClear(GL_COLOR_BUFFER_BIT); + glColor3fv(white); + for (i = 32; i < 127; i += 32) { + glRasterPos2i(20, 200 - 18*(GLint) i/32); + for (j = 0; j < 32; j++) + teststring[j] = (char) (i+j); + teststring[32] = 0; + printString(teststring); + } + glRasterPos2i(20, 100); + printString("The quick brown fox jumps"); + glRasterPos2i(20, 82); + printString("over a lazy dog."); + glFlush (); +} + +void myReshape(int w, int h) +{ + glViewport(0, 0, w, h); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho (0.0, (GLfloat) w, 0.0, (GLfloat) h, -1.0, 1.0); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); +} + +/* Main Loop + * Open window with initial window size, title bar, + * RGBA display mode, and handle input events. + */ +int main(int argc, char** argv) +{ + auxInitDisplayMode (AUX_SINGLE | AUX_RGB); + auxInitPosition (0, 0, 500, 500); + if (!auxInitWindow (argv[0])) + auxQuit(); + auxReshapeFunc (myReshape); + myinit (); + auxMainLoop(display); + return 0; +} + + + + -- cgit v1.2.3