axis_view.h

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/*
    Copyright (C) 2003 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 __ardour_gtk_axis_view_h__
#define __ardour_gtk_axis_view_h__

#include <list>
#include <boost/unordered_map.hpp>

#include <gtkmm/label.h>
#include <gdkmm/color.h>

#include "pbd/xml++.h"
#include "pbd/signals.h"

#include "ardour/session_handle.h"

#include "gui_object.h"
#include "prompter.h"
#include "selectable.h"

namespace ARDOUR {
        class Session;
}

class AxisView : public virtual Selectable, public PBD::ScopedConnectionList, public ARDOUR::SessionHandlePtr
{
  public:
        Gdk::Color color () const { return _color; }

        ARDOUR::Session* session() const { return _session; }

        virtual std::string name() const = 0;

        sigc::signal<void> Hiding;
        
        void set_old_order_key (uint32_t ok) { _old_order_key = ok; }
        uint32_t old_order_key() const { return _old_order_key; }

        virtual std::string state_id() const = 0;
        /* for now, we always return properties in string form.
         */
        std::string gui_property (const std::string& property_name) const;
        
        template<typename T> void set_gui_property (const std::string& property_name, const T& value) {
                std::stringstream s;
                s << value;
                property_hashtable.erase(property_name);
                property_hashtable.emplace(property_name, s.str());
                gui_object_state().set_property<T> (state_id(), property_name, value);
        }
    
        void cleanup_gui_properties () {
                /* remove related property node from the GUI state */
                gui_object_state().remove_node (state_id());
                property_hashtable.clear ();
        }

        bool marked_for_display () const;
        virtual bool set_marked_for_display (bool);

        static GUIObjectState& gui_object_state();
        void clear_property_cache() { property_hashtable.clear(); }
        
  protected:

        AxisView (ARDOUR::Session* sess);
        virtual ~AxisView();

        static Gdk::Color unique_random_color();

        Gdk::Color _color;

        static std::list<Gdk::Color> used_colors;

        Gtk::Label name_label;

        mutable boost::unordered_map<std::string, std::string> property_hashtable;
        uint32_t _old_order_key;
}; /* class AxisView */

#endif /* __ardour_gtk_axis_view_h__ */