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- //
- // "$Id: cube.cxx,v 1.4 1999/01/07 19:17:51 mike Exp $"
- //
- // Another forms test program for the Fast Light Tool Kit (FLTK).
- //
- // Modified to have 2 cubes to test multiple OpenGL contexts
- //
- // Copyright 1998-1999 by Bill Spitzak and others.
- //
- // This library is free software; you can redistribute it and/or
- // modify it under the terms of the GNU Library General Public
- // License as published by the Free Software Foundation; either
- // version 2 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
- // Library General Public License for more details.
- //
- // You should have received a copy of the GNU Library 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.
- //
- // Please report all bugs and problems to "fltk-bugs@easysw.com".
- //
-
- #include <config.h>
- #include <FL/Fl.H>
- #include <FL/Fl_Window.H>
- #include <FL/Fl_Box.H>
- #include <FL/Fl_Button.H>
- #include <FL/Fl_Radio_Light_Button.H>
- #include <FL/Fl_Slider.H>
- #include <stdlib.h>
-
- #if !HAVE_GL
- class cube_box : public Fl_Box {
- public:
- double lasttime;
- int wire;
- double size;
- double speed;
- cube_box(int x,int y,int w,int h,const char *l=0)
- :Fl_Box(FL_DOWN_BOX,x,y,w,h,l){
- label("This demo does\nnot work without GL");
- }
- };
- #else
- #include <FL/Fl_Gl_Window.H>
- #include <FL/gl.h>
-
- class cube_box : public Fl_Gl_Window {
- void draw();
- public:
- double lasttime;
- int wire;
- double size;
- double speed;
- cube_box(int x,int y,int w,int h,const char *l=0)
- : Fl_Gl_Window(x,y,w,h,l) {lasttime = 0.0;}
- };
-
- /* The cube definition */
- float v0[3] = {0.0, 0.0, 0.0};
- float v1[3] = {1.0, 0.0, 0.0};
- float v2[3] = {1.0, 1.0, 0.0};
- float v3[3] = {0.0, 1.0, 0.0};
- float v4[3] = {0.0, 0.0, 1.0};
- float v5[3] = {1.0, 0.0, 1.0};
- float v6[3] = {1.0, 1.0, 1.0};
- float v7[3] = {0.0, 1.0, 1.0};
-
- #define v3f(x) glVertex3fv(x)
-
- void drawcube(int wire) {
- /* Draw a colored cube */
- glBegin(wire ? GL_LINE_LOOP : GL_POLYGON);
- glColor3ub(0,0,255);
- v3f(v0); v3f(v1); v3f(v2); v3f(v3);
- glEnd();
- glBegin(wire ? GL_LINE_LOOP : GL_POLYGON);
- glColor3ub(0,255,255); v3f(v4); v3f(v5); v3f(v6); v3f(v7);
- glEnd();
- glBegin(wire ? GL_LINE_LOOP : GL_POLYGON);
- glColor3ub(255,0,255); v3f(v0); v3f(v1); v3f(v5); v3f(v4);
- glEnd();
- glBegin(wire ? GL_LINE_LOOP : GL_POLYGON);
- glColor3ub(255,255,0); v3f(v2); v3f(v3); v3f(v7); v3f(v6);
- glEnd();
- glBegin(wire ? GL_LINE_LOOP : GL_POLYGON);
- glColor3ub(0,255,0); v3f(v0); v3f(v4); v3f(v7); v3f(v3);
- glEnd();
- glBegin(wire ? GL_LINE_LOOP : GL_POLYGON);
- glColor3ub(255,0,0); v3f(v1); v3f(v2); v3f(v6); v3f(v5);
- glEnd();
- }
-
- void cube_box::draw() {
- lasttime = lasttime+speed;
- if (!valid()) {
- glLoadIdentity();
- glViewport(0,0,w(),h());
- glEnable(GL_DEPTH_TEST);
- glFrustum(-1,1,-1,1,2,10000);
- glTranslatef(0,0,-10);
- }
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
- glPushMatrix();
- glRotatef(float(lasttime*1.6),0,0,1);
- glRotatef(float(lasttime*4.2),1,0,0);
- glRotatef(float(lasttime*2.3),0,1,0);
- glTranslatef(-1.0, 1.2f, -1.5);
- glScalef(float(size),float(size),float(size));
- drawcube(wire);
- glPopMatrix();
- }
-
- #endif
-
- Fl_Window *form;
- Fl_Slider *speed, *size;
- Fl_Button *button, *wire, *flat;
- cube_box *cube, *cube2;
-
- void makeform(const char *name) {
- form = new Fl_Window(510+390,390,name);
- new Fl_Box(FL_DOWN_FRAME,20,20,350,350,"");
- new Fl_Box(FL_DOWN_FRAME,510,20,350,350,"");
- speed = new Fl_Slider(FL_VERT_SLIDER,390,90,40,220,"Speed");
- size = new Fl_Slider(FL_VERT_SLIDER,450,90,40,220,"Size");
- wire = new Fl_Radio_Light_Button(390,20,100,30,"Wire");
- flat = new Fl_Radio_Light_Button(390,50,100,30,"Flat");
- button = new Fl_Button(390,340,100,30,"Exit");
- cube = new cube_box(23,23,344,344, 0);
- cube2 = new cube_box(513,23,344,344, 0);
- Fl_Box *b = new Fl_Box(FL_NO_BOX,cube->x(),size->y(),
- cube->w(),size->h(),0);
- form->resizable(b);
- b->hide();
- form->end();
- }
-
- main(int argc, char **argv) {
- makeform(argv[0]);
- speed->bounds(4,0);
- speed->value(cube->speed = cube2->speed = 1.0);
- size->bounds(4,0.01);
- size->value(cube->size = cube2->size = 1.0);
- flat->value(1); cube->wire = 0; cube2->wire = 1;
- form->label("cube");
- form->show(argc,argv);
- cube->show();
- cube2->show();
- for (;;) {
- if (form->visible() && speed->value())
- {if (!Fl::check()) break;} // returns immediately
- else
- {if (!Fl::wait()) break;} // waits until something happens
- cube->wire = wire->value();
- cube2->wire = !wire->value();
- cube->size = cube2->size = size->value();
- cube->speed = cube2->speed = speed->value();
- cube->redraw();
- cube2->redraw();
- if (Fl::readqueue() == button) break;
- }
- return 0;
- }
-
- //
- // End of "$Id: cube.cxx,v 1.4 1999/01/07 19:17:51 mike Exp $".
- //
-