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/* QuesoGLC
* A free implementation of the OpenGL Character Renderer (GLC)
* Copyright (c) 2002-2005, Bertrand Coconnier
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* $Id: tutorial2.c 641 2007-10-26 21:32:18Z bcoconni $ */
#include "GL/glc.h"
#if defined __APPLE__ && defined __MACH__
#include <GLUT/glut.h>
#else
#include <GL/glut.h>
#endif
#include <stdlib.h>
void reshape(int width, int height)
{
glClearColor(0., 0., 0., 0.);
glViewport(0, 0, width, height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(0., width, 0., height);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glFlush();
}
void keyboard(unsigned char key, int x, int y)
{
switch(key) {
case 27: /* Escape Key */
exit(0);
default:
break;
}
}
void display(void)
{
int i = 0;
GLfloat baseline[4] = {0.f, 0.f, 0.f, 0.f};
GLfloat bbox[8] = {0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f};
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1.f, 0.f, 0.f);
glRasterPos2f(50.f, 50.f);
glcRenderString("Hello world!");
/* Render "H" and its bounding box */
glColor3f(0.f, 1.f, 1.f);
glTranslatef(50.f, 50.f, 0.f);
glcGetCharMetric('H', GLC_BOUNDS, bbox);
glBegin(GL_LINE_LOOP);
for (i = 0; i < 4; i++)
glVertex2fv(&bbox[2*i]);
glEnd();
/* Translate the model view matrix of the width of "H" */
glcGetCharMetric('H', GLC_BASELINE, baseline);
glTranslatef(baseline[2] - baseline[0], baseline[3] - baseline[1], 0.f);
/* Render the bouding box of "ello" */
glcMeasureString(GL_FALSE, "ello");
glcGetStringMetric(GLC_BOUNDS, bbox);
glBegin(GL_LINE_LOOP);
for (i = 0; i < 4; i++)
glVertex2fv(&bbox[2*i]);
glEnd();
glLoadIdentity();
glFlush();
}
int main(int argc, char **argv)
{
GLint ctx = 0;
GLint myFont = 0;
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
glutInitWindowSize(640, 230);
glutCreateWindow("Tutorial 2");
glutDisplayFunc(display);
glutReshapeFunc(reshape);
glutKeyboardFunc(keyboard);
/* Set up and initialize GLC */
ctx = glcGenContext();
glcContext(ctx);
glcAppendCatalog("/usr/lib/X11/fonts/Type1");
/* Create a font "Palatino Bold" */
myFont = glcGenFontID();
#ifdef __WIN32__
glcNewFontFromFamily(myFont, "Palatino Linotype");
#else
glcNewFontFromFamily(myFont, "Palatino");
#endif
glcFontFace(myFont, "Bold");
glcFont(myFont);
/* Render the text at a size of 100 points */
glcScale(100.f, 100.f);
glcRotate(10.f);
glutMainLoop();
return 0;
}
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