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progs/util: minor updates to glutskel.c

This commit is contained in:
Brian Paul 2009-08-28 08:55:20 -06:00
parent a068e098e2
commit 7dd6fa12e1
1 changed files with 33 additions and 31 deletions
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64
progs/util/glutskel.c
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@ -11,6 +11,7 @@
#include <GL/glut.h> #include <GL/glut.h>
static int Win; static int Win;
static int WinWidth = 400, WinHeight = 400;
static GLfloat Xrot = 0, Yrot = 0, Zrot = 0; static GLfloat Xrot = 0, Yrot = 0, Zrot = 0;
static GLboolean Anim = GL_FALSE; static GLboolean Anim = GL_FALSE;
@ -46,6 +47,8 @@ Draw(void)
static void static void
Reshape(int width, int height) Reshape(int width, int height)
{ {
WinWidth = width;
WinHeight = height;
glViewport(0, 0, width, height); glViewport(0, 0, width, height);
glMatrixMode(GL_PROJECTION); glMatrixMode(GL_PROJECTION);
glLoadIdentity(); glLoadIdentity();
@ -63,23 +66,23 @@ Key(unsigned char key, int x, int y)
(void) x; (void) x;
(void) y; (void) y;
switch (key) { switch (key) {
case 'a': case 'a':
Anim = !Anim; Anim = !Anim;
if (Anim) if (Anim)
glutIdleFunc(Idle); glutIdleFunc(Idle);
else else
glutIdleFunc(NULL); glutIdleFunc(NULL);
break; break;
case 'z': case 'z':
Zrot -= step; Zrot -= step;
break; break;
case 'Z': case 'Z':
Zrot += step; Zrot += step;
break; break;
case 27: case 27:
glutDestroyWindow(Win); glutDestroyWindow(Win);
exit(0); exit(0);
break; break;
} }
glutPostRedisplay(); glutPostRedisplay();
} }
@ -92,18 +95,18 @@ SpecialKey(int key, int x, int y)
(void) x; (void) x;
(void) y; (void) y;
switch (key) { switch (key) {
case GLUT_KEY_UP: case GLUT_KEY_UP:
Xrot -= step; Xrot -= step;
break; break;
case GLUT_KEY_DOWN: case GLUT_KEY_DOWN:
Xrot += step; Xrot += step;
break; break;
case GLUT_KEY_LEFT: case GLUT_KEY_LEFT:
Yrot -= step; Yrot -= step;
break; break;
case GLUT_KEY_RIGHT: case GLUT_KEY_RIGHT:
Yrot += step; Yrot += step;
break; break;
} }
glutPostRedisplay(); glutPostRedisplay();
} }
@ -123,8 +126,7 @@ int
main(int argc, char *argv[]) main(int argc, char *argv[])
{ {
glutInit(&argc, argv); glutInit(&argc, argv);
glutInitWindowPosition(0, 0); glutInitWindowSize(WinWidth, WinHeight);
glutInitWindowSize(400, 400);
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH); glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
Win = glutCreateWindow(argv[0]); Win = glutCreateWindow(argv[0]);
glutReshapeFunc(Reshape); glutReshapeFunc(Reshape);