/*
    Copyright (C) 2006 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_route_time_axis_h__
#define __ardour_route_time_axis_h__

#include <list>
#include <set>

#include <gtkmm/table.h>
#include <gtkmm/button.h>
#include <gtkmm/box.h>
#include <gtkmm/menu.h>
#include <gtkmm/menuitem.h>
#include <gtkmm/radiomenuitem.h>
#include <gtkmm/checkmenuitem.h>
#include <gtkmm/adjustment.h>

#include <gtkmm2ext/selector.h>
#include <gtkmm2ext/slider_controller.h>

#include "ardour/playlist.h"
#include "ardour/types.h"

#include "ardour_dialog.h"
#include "route_ui.h"
#include "enums.h"
#include "time_axis_view.h"
#include "canvas.h"
#include "gain_meter.h"


namespace ARDOUR {
	class Session;
	class Region;
	class Diskstream;
	class RouteGroup;
	class IOProcessor;
	class Processor;
	class Location;
	class Playlist;
}

class PublicEditor;
class RegionView;
class StreamView;
class Selection;
class RegionSelection;
class Selectable;
class AutomationTimeAxisView;
class AutomationLine;
class ProcessorAutomationLine;
class TimeSelection;

class RouteTimeAxisView : public RouteUI, public TimeAxisView
{
public:
 	RouteTimeAxisView (PublicEditor&, ARDOUR::Session&, boost::shared_ptr<ARDOUR::Route>, ArdourCanvas::Canvas& canvas);
 	virtual ~RouteTimeAxisView ();

	void show_selection (TimeSelection&);
	void set_button_names ();

	void set_samples_per_unit (double);
 	void set_height (uint32_t h);
	void show_timestretch (nframes_t start, nframes_t end);
	void hide_timestretch ();
	void selection_click (GdkEventButton*);
	void set_selected_points (PointSelection&);
	void set_selected_regionviews (RegionSelection&);
	void get_selectables (nframes_t start, nframes_t end, double top, double bot, std::list<Selectable *>&);
	void get_inverted_selectables (Selection&, std::list<Selectable*>&);
	bool show_automation(Evoral::Parameter param);
	void set_layer_display (LayerDisplay d);
	LayerDisplay layer_display () const;
		
	boost::shared_ptr<ARDOUR::Region> find_next_region (nframes_t pos, ARDOUR::RegionPoint, int32_t dir);
	nframes64_t find_next_region_boundary (nframes64_t pos, int32_t dir);

	/* Editing operations */
	bool cut_copy_clear (Selection&, Editing::CutCopyOp);
	bool paste (nframes_t, float times, Selection&, size_t nth);

	TimeAxisView::Children get_child_list();

	/* The editor calls these when mapping an operation across multiple tracks */
	void use_new_playlist (bool prompt, std::vector<boost::shared_ptr<ARDOUR::Playlist> > const &);
	void use_copy_playlist (bool prompt, std::vector<boost::shared_ptr<ARDOUR::Playlist> > const &);
	void clear_playlist ();

	/* group playlist name resolving */
	std::string resolve_new_group_playlist_name(std::string &, std::vector<boost::shared_ptr<ARDOUR::Playlist> > const &);

	
	void build_playlist_menu (Gtk::Menu *);

	void add_underlay (StreamView*, bool update_xml = true);
	void remove_underlay (StreamView*);
	void build_underlay_menu(Gtk::Menu*);
	
	int set_state (const XMLNode&);
	
	/* This is a bit nasty to expose :/ */
	struct RouteAutomationNode {
		Evoral::Parameter                         param;
		Gtk::CheckMenuItem*                       menu_item;
		boost::shared_ptr<AutomationTimeAxisView> track;
	    
		RouteAutomationNode (Evoral::Parameter par, Gtk::CheckMenuItem* mi, boost::shared_ptr<AutomationTimeAxisView> tr)
		    : param (par), menu_item (mi), track (tr) {}
	};

	virtual void create_automation_child (const Evoral::Parameter& param, bool show) = 0;
	
	/* make sure we get the right version of this */

	XMLNode* get_automation_child_xml_node (Evoral::Parameter param) { return RouteUI::get_automation_child_xml_node (param); }
	
	typedef std::map<Evoral::Parameter, RouteAutomationNode*> AutomationTracks;
	AutomationTracks automation_tracks() { return _automation_tracks; }

	boost::shared_ptr<AutomationTimeAxisView> automation_child(Evoral::Parameter param);
	
	std::string         name() const;
	StreamView*         view() const { return _view; }
	ARDOUR::RouteGroup* route_group() const;
	boost::shared_ptr<ARDOUR::Playlist> playlist() const;

	void fast_update ();
	void hide_meter ();
	void show_meter ();
	void reset_meter ();
	void clear_meter ();
	void io_changed (ARDOUR::IOChange, void *);
	void meter_changed (void *);
	void effective_gain_display () { gm.effective_gain_display(); }

	static void setup_slider_pix ();

protected:
	friend class StreamView;

	struct ProcessorAutomationNode {
		Evoral::Parameter                         what;
		Gtk::CheckMenuItem*                       menu_item;
		boost::shared_ptr<AutomationTimeAxisView> view;
		RouteTimeAxisView&                        parent;

	    ProcessorAutomationNode (Evoral::Parameter w, Gtk::CheckMenuItem* mitem, RouteTimeAxisView& p)
		    : what (w), menu_item (mitem), parent (p) {}

	    ~ProcessorAutomationNode ();
	};

	struct ProcessorAutomationInfo {
	    boost::shared_ptr<ARDOUR::Processor> processor;
	    bool                                 valid;
	    Gtk::Menu*                           menu;
	    std::vector<ProcessorAutomationNode*>     lines;

	    ProcessorAutomationInfo (boost::shared_ptr<ARDOUR::Processor> i) 
		    : processor (i), valid (true), menu (0) {}

	    ~ProcessorAutomationInfo ();
	};
	

	void diskstream_changed ();
	void update_diskstream_display ();
	
	gint edit_click  (GdkEventButton *);

	void processors_changed ();
	
	void add_processor_to_subplugin_menu (boost::weak_ptr<ARDOUR::Processor>, boost::weak_ptr<ARDOUR::Route>);
	void remove_processor_automation_node (ProcessorAutomationNode* pan);

	void processor_menu_item_toggled (RouteTimeAxisView::ProcessorAutomationInfo*,
	                                 RouteTimeAxisView::ProcessorAutomationNode*);
	
	void processor_automation_track_hidden (ProcessorAutomationNode*,
	                                       boost::shared_ptr<ARDOUR::Processor>);
	
	void automation_track_hidden (Evoral::Parameter param);

	RouteAutomationNode* automation_track(Evoral::Parameter param);
	RouteAutomationNode* automation_track(ARDOUR::AutomationType type);

	ProcessorAutomationNode*
	find_processor_automation_node (boost::shared_ptr<ARDOUR::Processor> i, Evoral::Parameter);
	
	boost::shared_ptr<AutomationLine>
	find_processor_automation_curve (boost::shared_ptr<ARDOUR::Processor> i, Evoral::Parameter);

	void add_processor_automation_curve (boost::shared_ptr<ARDOUR::Processor> r, Evoral::Parameter);
	void add_existing_processor_automation_curves (boost::weak_ptr<ARDOUR::Processor>);

	void add_automation_child(Evoral::Parameter param, boost::shared_ptr<AutomationTimeAxisView> track, bool show=true);
	
	void reset_processor_automation_curves ();

	void take_name_changed (void *src);
	void route_name_changed ();
	void name_entry_changed ();

	void update_rec_display ();

	virtual void label_view ();
	
	void add_route_group_menu_item (ARDOUR::RouteGroup *, Gtk::RadioMenuItem::Group*);
	void set_route_group_from_menu (ARDOUR::RouteGroup *);
	void set_route_group_to_new ();

	void reset_samples_per_unit ();

	void select_track_color();
	
	virtual void build_automation_action_menu ();
	virtual void append_extra_display_menu_items () {}
	void         build_display_menu ();
	
	void align_style_changed ();
	void set_align_style (ARDOUR::AlignStyle);
	
	virtual void set_playlist (boost::shared_ptr<ARDOUR::Playlist>);
	void         playlist_click ();
	void         show_playlist_selector ();
	void         playlist_changed ();
	void         playlist_modified ();

	void rename_current_playlist ();
	
	void         automation_click ();
	void         toggle_automation_track (Evoral::Parameter param);
	virtual void show_all_automation ();
	virtual void show_existing_automation ();
	virtual void hide_all_automation ();

	void timestretch (nframes_t start, nframes_t end);

	void visual_click ();
	void hide_click ();

	void speed_changed ();
	
	void map_frozen ();

	void color_handler ();

	void region_view_added (RegionView*);

	StreamView*           _view;
	ArdourCanvas::Canvas& parent_canvas;
	bool                  no_redraw;
  
	Gtk::HBox   other_button_hbox;
	Gtk::Table  button_table;
	Gtk::Button processor_button;
	Gtk::Button route_group_button;
	Gtk::Button playlist_button;
	Gtk::Button size_button;
	Gtk::Button automation_button;
	Gtk::Button hide_button;
	Gtk::Button visual_button;
	
	Gtk::Menu           subplugin_menu;
	Gtk::Menu*          automation_action_menu;
	Gtk::Menu           route_group_menu;
	Gtk::RadioMenuItem* align_existing_item;
	Gtk::RadioMenuItem* align_capture_item;
	Gtk::RadioMenuItem* normal_track_mode_item;
	Gtk::RadioMenuItem* non_layered_track_mode_item;
	Gtk::RadioMenuItem* destructive_track_mode_item;
	Gtk::Menu*          playlist_menu;
	Gtk::Menu*          playlist_action_menu;
	Gtk::MenuItem*      playlist_item;
	Gtk::Menu*          mode_menu;
	Gtk::Menu*          color_mode_menu;

	virtual Gtk::Menu* build_mode_menu() { return 0; }
	virtual Gtk::Menu* build_color_mode_menu() { return 0; }

	void use_playlist (boost::weak_ptr<ARDOUR::Playlist>);

	ArdourCanvas::SimpleRect* timestretch_rect;

	void set_track_mode (ARDOUR::TrackMode);
	void _set_track_mode (ARDOUR::Track* track, ARDOUR::TrackMode mode, Gtk::RadioMenuItem* reset_item, Gtk::RadioMenuItem* reset_item_2);
	void track_mode_changed ();

	std::list<ProcessorAutomationInfo*> processor_automation;

	typedef std::vector<boost::shared_ptr<AutomationLine> > ProcessorAutomationCurves;
	ProcessorAutomationCurves processor_automation_curves;
	
	// Set from XML so context menu automation buttons can be correctly initialized
	std::set<Evoral::Parameter> _show_automation;

	AutomationTracks _automation_tracks;

	sigc::connection modified_connection;

	void post_construct ();
	
	GainMeterBase gm;

	static Glib::RefPtr<Gdk::Pixbuf> slider;

	XMLNode* underlay_xml_node;
	bool set_underlay_state();

	typedef std::list<StreamView*> UnderlayList;
	UnderlayList _underlay_streams;
	typedef std::list<RouteTimeAxisView*> UnderlayMirrorList;
	UnderlayMirrorList _underlay_mirrors;
};

#endif /* __ardour_route_time_axis_h__ */