Ticket #12: drawrect.d

module drawrect;

import gtk.Main;
import gtk.MainWindow;
import gtk.Widget;
import gdk.GC;
import gdk.Drawable;
import gdk.Color;

void main (char[][] args) {
    Main.init(args);
    MainWindow window=new MainWindow("Gtkd draw rect example");
    
    window.addOnHide(
        delegate void (in Widget whatever){
            Main.exit(0);}
    );
    window.addOnExpose(
        delegate int (GdkEventExpose * whatever_II, in Widget widget) {
            Drawable da=widget.getDrawable();
            da.drawRectangle(   gcFgColor(da,0,255,255), true,
                                0,0, window.getHeight(),window.getWidth()
            );
            return 1;
        }
    );
    window.showAll();
    Main.run();
}
GC gcFgColor (in Drawable da, int r, int g, int b) {
    if (r<0) r=0;   if (r>255) r=255;
    if (g<0) r=0;   if (g>255) g=255;
    if (b<0) r=0;   if (b>255) b=255;
    GC rt=new GC(da);
    rt.setRgbFgColor (new Color(cast(ubyte)r,cast(ubyte)g,cast(ubyte)b));
    return rt;
}