// // "$Id$" // // Another forms test program for the Fast Light Tool Kit (FLTK). // // Modified to have 2 cubes to test multiple OpenGL contexts // // Copyright 1998-2010 by Bill Spitzak and others. // // This library is free software. Distribution and use rights are outlined in // the file "COPYING" which should have been included with this file. If this // file is missing or damaged, see the license at: // // http://www.fltk.org/COPYING.php // // Please report all bugs and problems on the following page: // // http://www.fltk.org/str.php // #include #include #include #include #include #include #include #include #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 #include class cube_box : public Fl_Gl_Window { void draw(); int handle(int); 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,pixel_w(),pixel_h()); glEnable(GL_DEPTH_TEST); glFrustum(-1,1,-1,1,2,10000); glTranslatef(0,0,-10); gl_font(FL_HELVETICA_BOLD, 16 ); glClearColor(0.4, 0.4, 0.4, 0); } 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(); gl_color(FL_GRAY); glDisable(GL_DEPTH_TEST); gl_draw(wire ? "Cube: wire" : "Cube: flat", -4.5f, -4.5f ); glEnable(GL_DEPTH_TEST); // if an OpenGL graphics driver is installed, give it a chance // to draw additional graphics if (Fl::cfg_gfx_opengl) Fl_Gl_Window::draw(); } int cube_box::handle(int e) { switch (e) { case FL_ENTER: cursor(FL_CURSOR_CROSS); break; case FL_LEAVE: cursor(FL_CURSOR_DEFAULT); break; } return Fl_Gl_Window::handle(e); } #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); if (Fl::cfg_gfx_opengl) { // try to overlay a button onto an OpenGL window cube->begin(); Fl_Button *test = new Fl_Button(35, 105, 100, 30, "Test"); test->box(FL_ROUND_UP_BOX); cube->end(); } 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(); } // added to demo printing #include #include void print_cb(Fl_Widget *w, void *data) { Fl_Printer printer; Fl_Window *win = Fl::first_window(); if(!win) return; if( printer.start_job(1) ) return; if( printer.start_page() ) return; printer.scale(0.5,0.5); printer.print_widget( win ); printer.end_page(); printer.end_job(); } // end of printing demo int main(int argc, char **argv) { Fl::use_high_res_GL(1); makeform(argv[0]); // added to demo printing form->begin(); static Fl_Menu_Item items[] = { { "Print", 0, 0, 0, FL_SUBMENU }, { "Print window", 0, print_cb, 0, 0 }, { 0 }, { 0 } }; Fl_Sys_Menu_Bar *menubar_; menubar_ = new Fl_Sys_Menu_Bar(0, 0, 60, 20); menubar_->box(FL_FLAT_BOX); menubar_->menu(items); form->end(); // end of printing demo 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(); #if 0 // This demonstrates how to manipulate OpenGL contexts. // In this case the same context is used by multiple windows (I'm not // sure if this is allowed on Win32, can somebody check?). // This fixes a bug on the XFree86 3.0 OpenGL where only one context // per program seems to work, but there are probably better uses for // this! cube->make_current(); // causes context to be created cube2->context(cube->context()); // share the contexts #endif 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 "$Id$". //