Multi-window applications in gtkmm

[Joaquim Duran <joaquinduran adtelecom es>]

Dear all,

As far I remember, some days ago someone asked if it is possible to 
develop multi-window applications based on gtkmm, it get the answer that 
a Notebook should be used (sorry, I haven't found the original messages).

I've written a small sample program to show the use of a very simple 
multiple window applications.

I hope that in new versions of gtkmm, this feature will be included in 
the library.

Thanks and Best Regards,
Joaquim Duran

#include <gtkmm.h>
#include <vector>
#include <iostream>

class MainWindow;

// TopWindow
class TopWindow: public Gtk::Window
{
 public:
  TopWindow(MainWindow &win);
  virtual ~TopWindow();

 protected:
  virtual void onCloseBttnClicked();

 private:
  Gtk::Button close;
  MainWindow *mw;
};


// Main Window
class MainWindow: public Gtk::Window
{
 public:
  MainWindow();
  virtual ~MainWindow();

  void closeTopWindow(TopWindow &twin);

 protected:
  void onNewBttnClicked();

 private:
  typedef std::vector<TopWindow*> vectTpWin;
  vectTpWin topWins;

  Gtk::Button btNew;
};


// Top Window Memeber Functions
TopWindow::TopWindow(MainWindow &win):
  close("Close"),
  mw(&win)
{
    add(close);
    close.signal_clicked().connect( sigc::mem_fun(*this,
	      &TopWindow::onCloseBttnClicked) );

    set_title("TopWindow");
    set_keep_above();
    show_all_children();
}

TopWindow::~TopWindow()
{
}

void TopWindow::onCloseBttnClicked()
{
    mw->closeTopWindow(*this);
}



// Main Windows member functions
MainWindow::MainWindow():
  topWins(), btNew("New Top Window")
{
    add(btNew);
    btNew.signal_clicked().connect( sigc::mem_fun(*this,
		     &MainWindow::onNewBttnClicked) );

    set_sensitive(true);

    set_title("MainWindow");
    show_all_children();
}

MainWindow::~MainWindow()
{
    vectTpWin::iterator i = topWins.begin();
    for (;i != topWins.end(); i++)
    {
      (*i)->hide();
      delete(*i);
    }
}


void MainWindow::onNewBttnClicked()
{
    TopWindow* win = new TopWindow(*this);
    topWins.push_back(win);
  
    win->show();
}


void MainWindow::closeTopWindow(TopWindow &win)
{
#if 1
    vectTpWin::iterator i =
    std::find(topWins.begin(), topWins.end(), &win);
#else
    vectTpWin::iterator i = topWins.begin(); 
    while (i != topWins.end())
    {
        if ((*i) != &win)
	{
            i++;
	}
	else
	{
	    break;
	}
    }
#endif

    if (i == topWins.end())
    {
      std::cerr << "Ref window not found" << std::endl;
      ::exit(1);
    }

    (*i)->hide();
    delete(*i);
    topWins.erase(i);
}


// Main
int main(int argc, char *argv[])
{
    Gtk::Main kit(argc, argv);

    
    MainWindow mwin;
    mwin.show();
    kit.run(mwin);

     //    TestWindow *tw = Gtk::Manage

    return 0;
}