#include <CtrlLib/CtrlLib.h>
using namespace Upp;

class ConsoleCtrl:public LineEdit{
	typedef ConsoleCtrl CLASSNAME;
	LocalProcess p;
	int last;
public:
	virtual bool Key(dword key,int count){
		switch(key) {
		case K_ENTER:{
			String cmd=line.Top().text.Right(GetLength()-last)+'\n';
			Insert(GetLength(),"\n");
			p.Write(cmd);
			}
			return true;
		case K_UP:    //might implement history browsing...
		case K_DOWN:
		case K_PAGEUP:
		case K_PAGEDOWN:
		case K_CTRL_PAGEUP:
		case K_CTRL_HOME:
		case K_CTRL_PAGEDOWN:
		case K_CTRL_END:
			return true;
		}
		return LineEdit::Key(key,count);
	}
	void Read(){
		String s;
		p.Read(s);
		if(s.IsEmpty()) return;
		Insert(GetLength(),s);
		last=GetLength();
		SetCursor(last);
	}
	ConsoleCtrl(const String& cmd="/bin/bash"){
		p.Start(cmd);
		SetTimeCallback(-50,THISBACK(Read));
	}
	~ConsoleCtrl(){
		p.Kill();
	}
};

class App :public TopWindow {
	typedef App CLASSNAME;
	ConsoleCtrl c;
public:
	App():c("/usr/bin/python -i"){  // -i is required to use it interactively
		Add(c.SizePos());		
	}
};

GUI_APP_MAIN{
	App().Sizeable().Run();
}