80677ac290
This is necessary for out-of-source builds (e.g. CMake) to work correctly. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@8033 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
232 lines
6.4 KiB
C++
232 lines
6.4 KiB
C++
//
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// "$Id$"
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//
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// Another forms test program for the Fast Light Tool Kit (FLTK).
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//
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// Modified to have 2 cubes to test multiple OpenGL contexts
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//
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// Copyright 1998-2010 by Bill Spitzak and others.
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// USA.
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//
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// Please report all bugs and problems on the following page:
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//
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// http://www.fltk.org/str.php
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//
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#include <config.h>
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#include <FL/Fl.H>
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#include <FL/Fl_Window.H>
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#include <FL/Fl_Box.H>
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#include <FL/Fl_Button.H>
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#include <FL/Fl_Radio_Light_Button.H>
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#include <FL/Fl_Slider.H>
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#include <stdlib.h>
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#if !HAVE_GL
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class cube_box : public Fl_Box {
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public:
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double lasttime;
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int wire;
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double size;
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double speed;
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cube_box(int x,int y,int w,int h,const char *l=0)
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:Fl_Box(FL_DOWN_BOX,x,y,w,h,l){
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label("This demo does\nnot work without GL");
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}
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};
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#else
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#include <FL/Fl_Gl_Window.H>
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#include <FL/gl.h>
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class cube_box : public Fl_Gl_Window {
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void draw();
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int handle(int);
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public:
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double lasttime;
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int wire;
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double size;
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double speed;
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cube_box(int x,int y,int w,int h,const char *l=0)
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: Fl_Gl_Window(x,y,w,h,l) {lasttime = 0.0;}
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};
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/* The cube definition */
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float v0[3] = {0.0, 0.0, 0.0};
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float v1[3] = {1.0, 0.0, 0.0};
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float v2[3] = {1.0, 1.0, 0.0};
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float v3[3] = {0.0, 1.0, 0.0};
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float v4[3] = {0.0, 0.0, 1.0};
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float v5[3] = {1.0, 0.0, 1.0};
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float v6[3] = {1.0, 1.0, 1.0};
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float v7[3] = {0.0, 1.0, 1.0};
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#define v3f(x) glVertex3fv(x)
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void drawcube(int wire) {
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/* Draw a colored cube */
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glBegin(wire ? GL_LINE_LOOP : GL_POLYGON);
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glColor3ub(0,0,255);
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v3f(v0); v3f(v1); v3f(v2); v3f(v3);
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glEnd();
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glBegin(wire ? GL_LINE_LOOP : GL_POLYGON);
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glColor3ub(0,255,255); v3f(v4); v3f(v5); v3f(v6); v3f(v7);
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glEnd();
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glBegin(wire ? GL_LINE_LOOP : GL_POLYGON);
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glColor3ub(255,0,255); v3f(v0); v3f(v1); v3f(v5); v3f(v4);
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glEnd();
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glBegin(wire ? GL_LINE_LOOP : GL_POLYGON);
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glColor3ub(255,255,0); v3f(v2); v3f(v3); v3f(v7); v3f(v6);
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glEnd();
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glBegin(wire ? GL_LINE_LOOP : GL_POLYGON);
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glColor3ub(0,255,0); v3f(v0); v3f(v4); v3f(v7); v3f(v3);
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glEnd();
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glBegin(wire ? GL_LINE_LOOP : GL_POLYGON);
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glColor3ub(255,0,0); v3f(v1); v3f(v2); v3f(v6); v3f(v5);
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glEnd();
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}
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void cube_box::draw() {
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lasttime = lasttime+speed;
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if (!valid()) {
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glLoadIdentity();
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glViewport(0,0,w(),h());
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glEnable(GL_DEPTH_TEST);
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glFrustum(-1,1,-1,1,2,10000);
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glTranslatef(0,0,-10);
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gl_font(FL_HELVETICA_BOLD, 16 );
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}
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glPushMatrix();
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glRotatef(float(lasttime*1.6),0,0,1);
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glRotatef(float(lasttime*4.2),1,0,0);
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glRotatef(float(lasttime*2.3),0,1,0);
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glTranslatef(-1.0, 1.2f, -1.5);
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glScalef(float(size),float(size),float(size));
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drawcube(wire);
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glPopMatrix();
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gl_color(FL_GRAY);
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glDisable(GL_DEPTH_TEST);
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gl_draw(wire ? "Cube: wire" : "Cube: flat", -4.5f, -4.5f );
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glEnable(GL_DEPTH_TEST);
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}
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int cube_box::handle(int e) {
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switch (e) {
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case FL_ENTER: cursor(FL_CURSOR_CROSS); break;
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case FL_LEAVE: cursor(FL_CURSOR_DEFAULT); break;
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}
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return Fl_Gl_Window::handle(e);
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}
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#endif
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Fl_Window *form;
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Fl_Slider *speed, *size;
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Fl_Button *button, *wire, *flat;
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cube_box *cube, *cube2;
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void makeform(const char *name) {
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form = new Fl_Window(510+390,390,name);
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new Fl_Box(FL_DOWN_FRAME,20,20,350,350,"");
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new Fl_Box(FL_DOWN_FRAME,510,20,350,350,"");
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speed = new Fl_Slider(FL_VERT_SLIDER,390,90,40,220,"Speed");
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size = new Fl_Slider(FL_VERT_SLIDER,450,90,40,220,"Size");
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wire = new Fl_Radio_Light_Button(390,20,100,30,"Wire");
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flat = new Fl_Radio_Light_Button(390,50,100,30,"Flat");
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button = new Fl_Button(390,340,100,30,"Exit");
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cube = new cube_box(23,23,344,344, 0);
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cube2 = new cube_box(513,23,344,344, 0);
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Fl_Box *b = new Fl_Box(FL_NO_BOX,cube->x(),size->y(),
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cube->w(),size->h(),0);
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form->resizable(b);
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b->hide();
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form->end();
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}
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// added to demo printing
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#include <FL/Fl_Sys_Menu_Bar.H>
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#include <FL/Fl_Printer.H>
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void print_cb(Fl_Widget *w, void *data)
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{
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Fl_Printer printer;
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Fl_Window *win = Fl::first_window();
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if(!win) return;
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if( printer.start_job(1) ) return;
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if( printer.start_page() ) return;
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printer.scale(0.5,0.5);
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printer.print_widget( win );
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printer.end_page();
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printer.end_job();
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}
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// end of printing demo
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int main(int argc, char **argv) {
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makeform(argv[0]);
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// added to demo printing
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form->begin();
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static Fl_Menu_Item items[] = {
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{ "Print", 0, 0, 0, FL_SUBMENU },
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{ "Print window", 0, print_cb, 0, 0 },
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{ 0 },
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{ 0 }
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};
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Fl_Sys_Menu_Bar *menubar_;
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menubar_ = new Fl_Sys_Menu_Bar(0, 0, 60, 20);
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menubar_->box(FL_FLAT_BOX);
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menubar_->menu(items);
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form->end();
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// end of printing demo
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speed->bounds(4,0);
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speed->value(cube->speed = cube2->speed = 1.0);
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size->bounds(4,0.01);
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size->value(cube->size = cube2->size = 1.0);
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flat->value(1); cube->wire = 0; cube2->wire = 1;
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form->label("cube");
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form->show(argc,argv);
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cube->show();
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cube2->show();
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#if 0
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// This demonstrates how to manipulate OpenGL contexts.
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// In this case the same context is used by multiple windows (I'm not
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// sure if this is allowed on Win32, can somebody check?).
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// This fixes a bug on the XFree86 3.0 OpenGL where only one context
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// per program seems to work, but there are probably better uses for
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// this!
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cube->make_current(); // causes context to be created
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cube2->context(cube->context()); // share the contexts
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#endif
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for (;;) {
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if (form->visible() && speed->value())
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{if (!Fl::check()) break;} // returns immediately
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else
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{if (!Fl::wait()) break;} // waits until something happens
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cube->wire = wire->value();
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cube2->wire = !wire->value();
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cube->size = cube2->size = size->value();
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cube->speed = cube2->speed = speed->value();
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cube->redraw();
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cube2->redraw();
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if (Fl::readqueue() == button) break;
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}
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return 0;
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}
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//
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// End of "$Id$".
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//
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