gtk2_ardour/automation_region_view.h

   1 /*
   2     Copyright (C) 2007 Paul Davis
   3     Author: David Robillard
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18 */
  19
  20 #ifndef __gtk_ardour_automation_region_view_h__
  21 #define __gtk_ardour_automation_region_view_h__
  22
  23 #include "ardour/types.h"
  24
  25 #include "region_view.h"
  26 #include "automation_time_axis.h"
  27 #include "automation_line.h"
  28 #include "enums.h"
  29 #include "canvas.h"
  30
  31 namespace ARDOUR {
  32         class AutomationList;
  33         class Parameter;
  34 };
  35
  36 class TimeAxisView;
  37
  38 class AutomationRegionView : public RegionView
  39 {
  40 public:
  41         AutomationRegionView(ArdourCanvas::Group*,
  42                              AutomationTimeAxisView&,
  43                              boost::shared_ptr<ARDOUR::Region>,
  44                              const Evoral::Parameter& parameter,
  45                              boost::shared_ptr<ARDOUR::AutomationList>,
  46                              double initial_samples_per_unit,
  47                              Gdk::Color const & basic_color);
  48
  49         ~AutomationRegionView();
  50
  51         void init (Gdk::Color const & basic_color, bool wfd);
  52
  53         inline AutomationTimeAxisView* automation_view() const
  54                 { return dynamic_cast<AutomationTimeAxisView*>(&trackview); }
  55
  56         boost::shared_ptr<AutomationLine> line() { return _line; }
  57
  58         // We are a ghost.  Meta ghosts?  Crazy talk.
  59         virtual GhostRegion* add_ghost(TimeAxisView&) { return NULL; }
  60
  61         void set_height (double);
  62         void reset_width_dependent_items(double pixel_width);
  63
  64 protected:
  65         void create_line(boost::shared_ptr<ARDOUR::AutomationList> list);
  66         bool set_position(framepos_t pos, void* src, double* ignored);
  67         void region_resized (const PBD::PropertyChange&);
  68         bool canvas_event(GdkEvent* ev);
  69         void add_automation_event (GdkEvent* event, framepos_t when, double y);
  70         void entered (bool);
  71         void exited();
  72
  73 private:
  74         Evoral::Parameter                 _parameter;
  75         boost::shared_ptr<AutomationLine> _line;
  76 };
  77
  78 #endif /* __gtk_ardour_automation_region_view_h__ */