7 #include "parameter.hh"
9 static Parameter<int> x11size("x11size", "X11 window size", 500, 100, 10, 10000);
11 static unsigned long colour_pixel(Display *display, Colormap cmap,
15 st= XAllocNamedColor(display,cmap,name,&colour,&colour);
17 cerr << "cannot allocate colour " << name << ", quitting\n";
23 X11Output::X11Output() {
25 display= XOpenDisplay(0);
26 window= XCreateSimpleWindow(display,
27 DefaultRootWindow(display),
28 0,0, x11size,x11size, 0,0,0);
29 Colormap cmap= DefaultColormap(display,DefaultScreen(display));
30 gcvalues.background= colour_pixel(display,cmap,"black");
31 fabric= XCreateGC(display,window,GCBackground,&gcvalues);
32 gcvalues.foreground= gcvalues.background= colour_pixel(display,cmap,"white");
33 mesh= XCreateGC(display,window,GCForeground|GCBackground,&gcvalues);
34 XSelectInput(display,window,0);
35 XMapWindow(display,window);
39 void X11Output::startimage() {
40 XClearWindow(display,window);
43 void X11Output::endimage() {
47 X11Output::~X11Output() {
48 XCloseDisplay(display);
51 void X11Output::drawcell(const Point* list, int n) {
53 for (int i=0; i<n; i++) {
54 Onscreen here= Onscreen(list[i]);
55 xp[i].x= (int)((here.x+1.0)*(x11size*0.5));
56 xp[i].y= (int)((-here.y+1.0)*(x11size*0.5));
58 XFillPolygon(display,window,fabric,xp,n,Nonconvex,CoordModeOrigin);
60 XDrawLines(display,window,mesh,xp,n+1,CoordModeOrigin);