--- /dev/null
+#include "culooks.h"
+
+#include <iostream>
+#include <math.h>
+
+vector< pair<int,culooks::window*> > culooks::Windows;
+pthread_t culooks::glThreadId;
+
+int culooks::windowid = 0;
+
+int culooks::cube::allid = 0;
+
+using namespace std;
+
+void culooks::cube::draw()
+{
+ glMatrixMode(GL_MODELVIEW);
+ glPushMatrix();
+
+ //cout << zoom << endl;
+
+ glScalef(zoom, zoom, zoom);
+ glRotatef(az, 0, 1, 0);
+ glRotatef(alt, 1, 0, 0);
+
+ /*
+ glBegin(GL_QUADS);
+ glVertex2f(-1, -1); glVertex2f(1, -1); glVertex2f(1, 1); glVertex2f(-1, 1);
+ glEnd();
+ */
+
+ //drawBox();
+ drawAll();
+
+ glPopMatrix();
+}
+
+void culooks::cube::drawAll()
+{
+ glMatrixMode(GL_MODELVIEW);
+ glPushMatrix();
+
+ glTranslatef(-1,-1,-1);
+
+ for (int iz=0; iz<l; iz++) {
+ for (int iy=0; iy<l; iy++) {
+ for (int ix=0; ix<l; ix++) {
+ glPushMatrix();
+ glTranslatef(2.0*ix/l,2.0*iy/l,2.0*iz/l);
+ glScalef(2.0/l,2.0/l,2.0/l);
+
+ /* draw links */
+ glBegin(GL_LINES);
+ glColor4f(link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 0*4 + 0],
+ link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 0*4 + 1],
+ link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 0*4 + 2],
+ link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 0*4 + 3]);
+ glVertex3f(0,0,0); glVertex3f(1,0,0);
+ glColor4f(link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 1*4 + 0],
+ link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 1*4 + 1],
+ link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 1*4 + 2],
+ link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 1*4 + 3]);
+ glVertex3f(0,0,0); glVertex3f(0,1,0);
+ glColor4f(link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 2*4 + 0],
+ link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 2*4 + 1],
+ link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 2*4 + 2],
+ link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 2*4 + 3]);
+ glVertex3f(0,0,0); glVertex3f(0,0,1);
+ glEnd();
+
+ /* draw plaquettes */
+ glColor4f(1,1,1,0.5);
+ glBegin(GL_QUADS);
+ glColor4f(plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 2*4 + 0],
+ plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 2*4 + 1],
+ plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 2*4 + 2],
+ plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 2*4 + 3]);
+ glVertex3f(0, 0, 0); glVertex3f(1, 0, 0); glVertex3f(1, 1, 0); glVertex3f(0, 1, 0);
+ glColor4f(plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 1*4 + 0],
+ plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 1*4 + 1],
+ plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 1*4 + 2],
+ plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 1*4 + 3]);
+ glVertex3f(0, 0, 0); glVertex3f(1, 0, 0); glVertex3f(1, 0, 1); glVertex3f(0, 0, 1);
+ glColor4f(plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 0*4 + 0],
+ plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 0*4 + 1],
+ plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 0*4 + 2],
+ plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 0*4 + 3]);
+ glVertex3f(0, 0, 0); glVertex3f(0, 1, 0); glVertex3f(0, 1, 1); glVertex3f(0, 0, 1);
+ glEnd();
+
+ glPopMatrix();
+ }
+ }
+ }
+
+ glPopMatrix();
+}
+
+namespace mygl
+{
+ int rotcube[3];
+
+ culooks::window* getWin()
+ {
+ for (int iwin=0; iwin<culooks::Windows.size(); iwin++)
+ if ( culooks::Windows.at(iwin).first == glutGetWindow() ) {
+ return culooks::Windows.at(iwin).second;
+ }
+ cerr << "Something terrible happened: Could not find window-id!" << endl;
+ exit(1);
+ }
+
+ static int getCubeFromPos(int x, int y)
+ {
+ culooks::window *Win = getWin();
+
+ int col = x / ((float)Win->w / Win->layout[0]);
+ int row = Win->layout[1] - y / ((float)Win->h / Win->layout[1]);
+
+ return col + row*Win->layout[0];
+ }
+
+
+ static void motionFunc(int x, int y)
+ {
+ cout << x << endl;
+ culooks::window *Win = getWin();
+
+ Win->cubes.at(rotcube[0]).az += rotcube[1] - x;
+ Win->cubes.at(rotcube[0]).alt += rotcube[2] - y;
+
+ rotcube[1] = x;
+ rotcube[2] = y;
+
+
+ glutPostRedisplay();
+ }
+
+ static void mouseFunc(int button, int state, int x, int y)
+ {
+ culooks::window *Win = getWin();
+
+ if (button == 0) {
+ rotcube[0] = getCubeFromPos(x,y);
+ rotcube[1] = x;
+ rotcube[2] = y;
+ }
+
+ if (button == 4) {
+ Win->cubes.at(getCubeFromPos(x,y)).zoom *= 1.1;
+ glutPostRedisplay();
+ }
+ else if (button == 3) {
+ Win->cubes.at(getCubeFromPos(x,y)).zoom *= 0.9;
+ glutPostRedisplay();
+ }
+ }
+
+
+ static void reshapeFunc(int w, int h)
+ {
+ culooks::window *Win = getWin();
+
+ int neww;
+ int newh;
+
+ if ( w == Win->w ) {
+ newh = h;
+ neww = Win->aspect*h;
+ }
+ else if ( h == Win->h ) {
+ neww = w;
+ newh = w / Win->aspect;
+ }
+ else {
+ neww = ( pow(Win->aspect,2)*w + Win->aspect*h ) / ( pow(Win->aspect,2) + 1 );
+ newh = ( Win->aspect*w + h ) / ( pow(Win->aspect,2) + 1 );
+ }
+
+ glutReshapeWindow(neww,newh);
+ glViewport(0,0,neww,newh);
+
+ Win->w = neww;
+ Win->h = newh;
+ }
+
+ static void displayFunc()
+ {
+ cout << ":" << glutGetWindow() << endl;
+
+ culooks::window *Win = getWin();
+
+ glClearColor(0,0,0,0);
+ glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+
+ glScalef(1.0/Win->layout[0],1.0/Win->layout[1],1.0);
+ glTranslatef(-Win->layout[0]+1, -Win->layout[1]+1, 0);
+
+ for (int icube=0; icube < Win->cubes.size(); icube++) {
+ //glScalef(1.0/Env->layout[0],1.0/Env->layout[1],1.0);
+ //glRotatef(2, 1, 0, 0);
+ Win->cubes.at(icube).draw();
+ if ((icube+1)%Win->layout[0] == 0) {
+ glTranslatef(-2*Win->layout[0]+2, 2, 0);
+ }
+ else {
+ glTranslatef(2, 0, 0);
+ }
+ }
+
+ glutSwapBuffers();
+ }
+
+ static void initWindow(int winid)
+ {
+ glutInitWindowSize(culooks::Windows[winid].second->w, culooks::Windows[winid].second->h);
+ glutInitWindowPosition(winid*100,winid*100);
+ glutCreateWindow( ("culooks / " + culooks::Windows[winid].second->name).c_str() );
+
+ glutDisplayFunc(&mygl::displayFunc);
+ glutReshapeFunc(&mygl::reshapeFunc);
+ glutMotionFunc(&mygl::motionFunc);
+ glutMouseFunc(&mygl::mouseFunc);
+
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ glEnable( GL_BLEND );
+
+ culooks::Windows[winid].first = glutGetWindow();
+
+ culooks::Windows[winid].second->initialized = true;
+ }
+
+ static void idleFunc_master()
+ {
+ for (int iwin=0; iwin < culooks::Windows.size(); iwin++)
+ if (!culooks::Windows[iwin].second->initialized)
+ initWindow(iwin);
+ }
+
+ static void* glutThread(void *_wincon)
+ {
+ culooks::wincontext *wincon = (culooks::wincontext *)_wincon;
+ glXMakeCurrent( wincon->gDisplay, wincon->gDrawable, wincon->gContext );
+ initWindow(0);
+ glutIdleFunc(&idleFunc_master);
+ glutMainLoop();
+ }
+};
+
+
+culooks::culooks (const char* name, const int& xcubes, const int& ycubes, const int& l, int *argc, char **argv)
+{
+ window *Win = new window;
+ int winsize[2];
+ wincontext wincon;
+
+ if (windowid == 0) {
+ glutInit(argc, argv);
+ glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGB|GLUT_DEPTH);
+ }
+
+ Win->layout[0] = xcubes;
+ Win->layout[1] = ycubes;
+ Win->aspect = (double)xcubes/ycubes;
+ for (int icube=0; icube<xcubes*ycubes; icube++) {
+ cube newCube(l);
+ Win->cubes.push_back(newCube);
+ }
+
+ if( Win->layout[0] >= Win->layout[1] ) {
+ winsize[0] = 640;
+ winsize[1] = (640.0/Win->layout[0])*Win->layout[1];
+ }
+ else {
+ winsize[1] = 640;
+ winsize[0] = (640.0/Win->layout[1])*Win->layout[0];
+ }
+
+ Win->w = winsize[0];
+ Win->h = winsize[1];
+
+ Win->name = name;
+
+ Win->initialized = false;
+
+ Windows.push_back( pair<int,culooks::window*>(0, Win) );
+
+ if (windowid == 0) {
+ wincon.gContext = glXGetCurrentContext();
+ wincon.gDisplay = glXGetCurrentDisplay();
+ wincon.gDrawable = glXGetCurrentDrawable();
+
+ glXMakeCurrent(0,0,0);
+
+ pthread_create(&glThreadId, 0, &mygl::glutThread, &wincon);
+ }
+
+ mywid = windowid;
+ windowid++;
+}
+
+culooks::cube::cube(int _l)
+{
+ l = _l;
+ link = new float[l*l*l*3 * 4];
+ plaq = new float[l*l*l*3 * 4];
+ az = 30;
+ alt = -20;
+ zoom = 0.6;
+ id = allid;
+ allid++;
+
+ for (int i=0; i<l*l*l*3; i++) {
+ link[i*4+0]=1; link[i*4+3]=0.6;
+ plaq[i*4+1]=1; plaq[i*4+3]=0.2;
+ }
+}