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Diffstat (limited to 'progs/samples/cursor.c')
-rw-r--r-- | progs/samples/cursor.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/progs/samples/cursor.c b/progs/samples/cursor.c new file mode 100644 index 000000000..de8fc5855 --- /dev/null +++ b/progs/samples/cursor.c @@ -0,0 +1,150 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "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 BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +GLenum rgb, doubleBuffer, windType; +int windX, windY; +int cursor; + + +#include "tkmap.c" + +static void Init(void) +{ + cursor = 0; + glutSetCursor(cursor); + glClearColor(0.0, 0.0, 0.0, 0.0); + glClearIndex(0.0); +} + +static void Reshape(int width, int height) +{ + + windX = width; + windY = height; + glViewport(0, 0, windX, windY); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluOrtho2D(0, windX, 0, windY); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + case 32: + cursor++; + if (cursor > 19) { + cursor = 0; + } + glutSetCursor(cursor); + } +} + +static void Draw(void) +{ + + glClear(GL_COLOR_BUFFER_BIT); + + glBegin(GL_POLYGON); + SetColor(COLOR_BLACK); + glVertex2i(0, 0); + SetColor(COLOR_RED); + glVertex2i(windX, 0); + SetColor(COLOR_GREEN); + glVertex2i(windX, windY); + SetColor(COLOR_BLUE); + glVertex2i(0, windY); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + rgb = GL_TRUE; + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-ci") == 0) { + rgb = GL_FALSE; + } else if (strcmp(argv[i], "-rgb") == 0) { + rgb = GL_TRUE; + } else if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + windX = 300; + windY = 300; + glutInitWindowPosition(0, 0); glutInitWindowSize( windX, windY); + + windType = (rgb) ? GLUT_RGB : GLUT_INDEX; + windType |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(windType); + + if (glutCreateWindow("Cursor Test") == GL_FALSE) { + exit(1); + } + + InitMap(); + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} |