gtk2_ardour/marker.h

   1 /*
   2     Copyright (C) 2001 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #ifndef __gtk_ardour_marker_h__
  21 #define __gtk_ardour_marker_h__
  22
  23 #include <string>
  24 #include <glib.h>
  25 #include <ardour/ardour.h>
  26 #include <pbd/destructible.h>
  27
  28 #include "canvas.h"
  29
  30 namespace ARDOUR {
  31         class TempoSection;
  32         class MeterSection;
  33 }
  34
  35 class PublicEditor;
  36
  37 class Marker : public PBD::Destructible
  38 {
  39   public:
  40         enum Type {
  41                 Mark,
  42                 Tempo,
  43                 Meter,
  44                 Start,
  45                 End,
  46                 LoopStart,
  47                 LoopEnd,
  48                 PunchIn,
  49                 PunchOut
  50         };
  51
  52
  53         Marker (PublicEditor& editor, ArdourCanvas::Group& parent, guint32 rgba, const string& text, Type,
  54                 nframes_t frame = 0, bool handle_events = true);
  55
  56         virtual ~Marker ();
  57
  58         ArdourCanvas::Item& the_item() const;
  59
  60         void add_line (ArdourCanvas::Group*, double y_origin, double initial_height);
  61         void show_line ();
  62         void hide_line ();
  63         void set_line_vpos (double y_origin, double height);
  64
  65         void set_position (nframes_t);
  66         void set_name (const string&);
  67         void set_color_rgba (uint32_t rgba);
  68
  69         nframes64_t position() const { return frame_position; }
  70
  71         ArdourCanvas::Group * get_parent() { return _parent; }
  72         void reparent (ArdourCanvas::Group & parent);
  73
  74         void hide ();
  75         void show ();
  76
  77         Type type () { return _type; }
  78
  79   protected:
  80         PublicEditor& editor;
  81
  82         ArdourCanvas::Group * _parent;
  83         ArdourCanvas::Group *group;
  84         ArdourCanvas::Polygon *mark;
  85         ArdourCanvas::Text *text;
  86         ArdourCanvas::Points *points;
  87         ArdourCanvas::SimpleLine *line;
  88         ArdourCanvas::Points *line_points;
  89
  90         double        unit_position;
  91         nframes64_t   frame_position;
  92         unsigned char shift; /* should be double, but its always small and integral */
  93         Type         _type;
  94
  95         void reposition ();
  96 };
  97
  98 class TempoMarker : public Marker
  99 {
 100   public:
 101         TempoMarker (PublicEditor& editor, ArdourCanvas::Group& parent, guint32 rgba, const string& text, ARDOUR::TempoSection&);
 102         ~TempoMarker ();
 103
 104         ARDOUR::TempoSection& tempo() const { return _tempo; }
 105
 106   private:
 107         ARDOUR::TempoSection& _tempo;
 108 };
 109
 110 class MeterMarker : public Marker
 111 {
 112   public:
 113         MeterMarker (PublicEditor& editor, ArdourCanvas::Group& parent, guint32 rgba, const string& text, ARDOUR::MeterSection&);
 114         ~MeterMarker ();
 115
 116         ARDOUR::MeterSection& meter() const { return _meter; }
 117
 118   private:
 119         ARDOUR::MeterSection& _meter;
 120 };
 121
 122 #endif /* __gtk_ardour_marker_h__ */