persistent_tooltip.h

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/*
    Copyright (C) 2012 Paul Davis

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#ifndef gtkmm2ext_persistent_tooltip_h
#define gtkmm2ext_persistent_tooltip_h

#include <sigc++/trackable.h>

#include "gtkmm2ext/visibility.h"

namespace Gtkmm2ext {

class LIBGTKMM2EXT_API PersistentTooltip : public sigc::trackable
{
public:
        PersistentTooltip (Gtk::Widget *, int margin_y = 0);
        virtual ~PersistentTooltip ();
        
        void set_tip (std::string);

        virtual bool dragging () const;

private:
        bool timeout ();
        void show ();
        void hide ();
        bool enter (GdkEventCrossing *);
        bool leave (GdkEventCrossing *);
        bool press (GdkEventButton *);
        bool release (GdkEventButton *);

        Gtk::Widget* _target;
        Gtk::Window* _window;
        Gtk::Label* _label;
        bool _maybe_dragging;
        sigc::connection _timeout;
        std::string _tip;
        int _margin_y;
};

}

#endif