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audio_time_axis.h

/*
    Copyright (C) 2000 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.

    $Id: audio_time_axis.h,v 1.43 2005/08/31 02:27:38 pauld Exp $
*/

#ifndef __ardour_trackview_h__
#define __ardour_trackview_h__

#include <gtk--.h>
#include <gtk-canvas.h>
#include <gtkmmext/selector.h>
#include <gtkmmext/popup_selector.h>
#include <list>

#include <ardour/types.h>
#include <ardour/region.h>

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

namespace ALSA {
      class MultiChannelDevice;
}

namespace ARDOUR {
      class Session;
      class DiskStream;
      class RouteGroup;
      class Redirect;
      class Insert;
      class Location;
      class AudioPlaylist;
}

namespace LADSPA {
      class Manager;
      class Plugin;
}

class PublicEditor;
class AudioThing;
class StreamView;
class Selection;
class Selectable;
class AudioRegionView;
class AutomationLine;
class AutomationGainLine;
class AutomationPanLine;
class RedirectAutomationLine;
class TimeSelection;
class AutomationTimeAxisView;

class AudioTimeAxisView : public RouteUI, public TimeAxisView
{
  public:
      AudioTimeAxisView (PublicEditor&, ARDOUR::Session&, ARDOUR::Route&, Gtk::Widget *canvas);
      virtual ~AudioTimeAxisView ();

      void show_selection (TimeSelection&);
      void automation_control_point_changed (ARDOUR::AutomationType);

      void set_samples_per_unit (double);
      void set_height (TimeAxisView::TrackHeight);
      void set_show_waveforms (bool yn);
      void set_show_waveforms_recording (bool yn);
      void show_timestretch (jack_nframes_t start, jack_nframes_t end);
      void hide_timestretch ();
      void selection_click (GdkEventButton*);
      void set_selected_regionviews (AudioRegionSelection&);
      void set_selected_points (PointSelection&);
      void get_selectables (jack_nframes_t start, jack_nframes_t end, double top, double bot, list<Selectable *>&);
      void get_inverted_selectables (Selection&, list<Selectable*>&);
      void show_all_xfades ();
      void hide_all_xfades ();
      void hide_dependent_views (TimeAxisViewItem&);
      void reveal_dependent_views (TimeAxisViewItem&);
            
      ARDOUR::Region* find_next_region (jack_nframes_t pos, ARDOUR::RegionPoint, int32_t dir);

      string name() const;

      ARDOUR::RouteGroup* edit_group() const;

      void build_playlist_menu (Gtk::Menu *);
      ARDOUR::Playlist* playlist() const;

      /* overridden from parent to store display state */
      guint32 show_at (double y, int& nth, Gtk::VBox *parent);
      void hide ();
      
      /* need accessors/mutators */

      StreamView      *view;

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

      list<TimeAxisView*>get_child_list();

      void set_state (const XMLNode&);
      XMLNode* get_child_xml_node (std::string childname);

  private:
      friend class StreamView;
      friend class AudioRegionView;

      Gtk::Widget* parent_canvas;

      bool         no_redraw;
  
      AutomationTimeAxisView *gain_track;
      AutomationTimeAxisView *pan_track;

      void update_automation_view (ARDOUR::AutomationType);
      void reset_redirect_automation_curves ();

      Gtk::HBox  other_button_hbox;

      Gtk::Table button_table;

      Gtk::Button       redirect_button;
      Gtk::Button       edit_group_button;
      Gtk::Button       playlist_button;
      Gtk::Button       size_button;
      Gtk::Button       automation_button;
      Gtk::Button       hide_button;
      Gtk::Button       visual_button;

      void route_active_changed ();

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

      /* Redirect handling */

      ArdourDialog redirect_window;
      Gtk::CList  redirect_display;
      Gtk::Button redirect_add_button;
      Gtk::Button redirect_remove_button;
      Gtk::Button redirect_up_button;
      Gtk::Button redirect_down_button;
      Gtk::Button redirect_edit_button;
      Gtk::HBox   redirect_button_box;
      Gtk::VBox   redirect_vpacker;
      Gtk::HBox   redirect_display_hpacker;

      int redirect_selected_row;


      // variables to get the context menu
      // automation buttons correctly initialized
      bool show_gain_automation;
      bool show_pan_automation;

      void build_redirect_window ();
      void redirect_click ();
      void redirect_add ();
      void redirect_remove ();
      void redirect_edit ();
      void redirect_relist ();
      void redirect_row_selected (gint row, gint col, GdkEvent *ev);
      void add_to_redirect_display (ARDOUR::Redirect *);
      void redirects_changed (void *);

      SigC::Connection modified_connection;
      SigC::Connection state_changed_connection;

      void take_name_changed (void *);
      void route_name_changed (void *);
      void name_entry_activated ();
      void name_entry_changed ();
      gint name_entry_focus_out_handler (GdkEventFocus*);
      gint name_entry_key_release_handler (GdkEventKey*);
      gint name_entry_button_release_handler (GdkEventButton*);
      gint name_entry_button_press_handler (GdkEventButton*);
      void on_area_realize ();

      virtual void label_view ();

      Gtk::Menu edit_group_menu;
      Gtk::RadioMenuItem::Group edit_group_menu_radio_group;

      void add_edit_group_menu_item (ARDOUR::RouteGroup *);
      void set_edit_group_from_menu (ARDOUR::RouteGroup *);

      void reset_samples_per_unit ();

      void select_track_color();
      
      virtual void build_display_menu ();

      Gtk::CheckMenuItem* waveform_item;
      Gtk::RadioMenuItem* traditional_item;
      Gtk::RadioMenuItem* rectified_item;
      
      Gtk::RadioMenuItem* align_existing_item;
      Gtk::RadioMenuItem* align_capture_item;
      
      void align_style_changed ();
      void set_align_style (ARDOUR::AlignStyle);

      void toggle_show_waveforms ();

      void set_waveform_shape (WaveformShape);
      void toggle_waveforms ();

      Gtk::Menu *playlist_menu;
      Gtk::Menu *playlist_action_menu;
      Gtk::MenuItem *playlist_item;
      
      /* playlist */

      void set_playlist (ARDOUR::AudioPlaylist *);
      void playlist_click ();
      void show_playlist_selector ();

      void playlist_changed ();
      void playlist_state_changed (ARDOUR::Change);
      void playlist_modified ();

      void add_playlist_to_playlist_menu (ARDOUR::Playlist*);
      void playlist_selected (ARDOUR::AudioPlaylist*);
      void use_new_playlist ();
      void use_copy_playlist ();
      void clear_playlist ();
      void rename_current_playlist ();

      /* automation stuff */
      
      Gtk::Menu* automation_action_menu;
      Gtk::CheckMenuItem* gain_automation_item;
      Gtk::CheckMenuItem* pan_automation_item;

      void automation_click ();
      void clear_automation ();
      void hide_all_automation ();
      void show_all_automation ();
      void show_existing_automation ();

      struct RedirectAutomationNode {
          uint32_t     what;
          Gtk::CheckMenuItem* menu_item;
          AutomationTimeAxisView* view;
          AudioTimeAxisView& parent;

          RedirectAutomationNode (uint32_t w, Gtk::CheckMenuItem* mitem, AudioTimeAxisView& p)
                : what (w), menu_item (mitem), view (0), parent (p) {}

          ~RedirectAutomationNode ();
      };

      struct RedirectAutomationInfo {
          ARDOUR::Redirect* redirect;
          bool valid;
          Gtk::Menu* menu;
          vector<RedirectAutomationNode*> lines;

          RedirectAutomationInfo (ARDOUR::Redirect* r) 
                : redirect (r), valid (true) {}

          ~RedirectAutomationInfo ();
      };

      list<RedirectAutomationInfo*> redirect_automation;
      RedirectAutomationNode* find_redirect_automation_node (ARDOUR::Redirect *redirect, uint32_t what);
      
      Gtk::Menu subplugin_menu;
      void add_redirect_to_subplugin_menu (ARDOUR::Redirect *);

      void remove_ran (RedirectAutomationNode* ran);

      void redirect_menu_item_toggled (AudioTimeAxisView::RedirectAutomationInfo*,
                               AudioTimeAxisView::RedirectAutomationNode*);
      void redirect_automation_track_hidden (RedirectAutomationNode*, ARDOUR::Redirect*);
      
      vector<RedirectAutomationLine*> redirect_automation_curves;
      RedirectAutomationLine *find_redirect_automation_curve (ARDOUR::Redirect*,uint32_t);
      void add_redirect_automation_curve (ARDOUR::Redirect*, uint32_t);
      void add_existing_redirect_automation_curves (ARDOUR::Redirect*);

      GtkCanvasItem *timestretch_rect;

      void timestretch (jack_nframes_t start, jack_nframes_t end);

      void visual_click ();
      void hide_click ();
      gint when_displayed (GdkEventAny*);

      void speed_changed ();
      
      void add_gain_automation_child ();
      void add_pan_automation_child ();
      void add_parameter_automation_child ();

      void toggle_gain_track ();
      void toggle_pan_track ();

      void gain_hidden ();
      void pan_hidden ();

      void update_pans ();

      void region_view_added (AudioRegionView*);
      void add_ghost_to_redirect (AudioRegionView*, AutomationTimeAxisView*);

      void map_frozen ();
};

#endif /* __ardour_trackview_h__ */


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