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 <libgnomecanvasmm/pixbuf.h>
  29
  30 #include "canvas.h"
  31
  32 namespace ARDOUR {
  33         class TempoSection;
  34         class MeterSection;
  35 }
  36
  37 class PublicEditor;
  38
  39 class Marker : public PBD::Destructible
  40 {
  41   public:
  42         enum Type {
  43                 Mark,
  44                 Tempo,
  45                 Meter,
  46                 Start,
  47                 End,
  48                 LoopStart,
  49                 LoopEnd,
  50                 PunchIn,
  51                 PunchOut
  52         };
  53
  54
  55         Marker (PublicEditor& editor, ArdourCanvas::Group& parent, guint32 rgba, const string& text, Type,
  56                 nframes_t frame = 0, bool handle_events = true);
  57
  58         virtual ~Marker ();
  59
  60         ArdourCanvas::Item& the_item() const;
  61
  62         void add_line (ArdourCanvas::Group*, double y_origin, double initial_height);
  63         void show_line ();
  64         void hide_line ();
  65         void set_line_vpos (double y_origin, double height);
  66
  67         void set_position (nframes_t);
  68         void set_name (const string&);
  69         void set_color_rgba (uint32_t rgba);
  70
  71         nframes64_t position() const { return frame_position; }
  72
  73         ArdourCanvas::Group * get_parent() { return _parent; }
  74         void reparent (ArdourCanvas::Group & parent);
  75
  76         void hide ();
  77         void show ();
  78
  79         Type type () { return _type; }
  80
  81   protected:
  82         PublicEditor& editor;
  83
  84         Pango::FontDescription* name_font;
  85
  86         ArdourCanvas::Group * _parent;
  87         ArdourCanvas::Group *group;
  88         ArdourCanvas::Polygon *mark;
  89         ArdourCanvas::Pixbuf *name_pixbuf;
  90         ArdourCanvas::Points *points;
  91         ArdourCanvas::SimpleLine *line;
  92         ArdourCanvas::Points *line_points;
  93
  94         double        unit_position;
  95         nframes64_t   frame_position;
  96         unsigned char shift; /* should be double, but its always small and integral */
  97         Type          _type;
  98         int           name_height;
  99         std::string   _annotation;
 100
 101         void reposition ();
 102         void color_handler ();
 103 };
 104
 105 class TempoMarker : public Marker
 106 {
 107   public:
 108         TempoMarker (PublicEditor& editor, ArdourCanvas::Group& parent, guint32 rgba, const string& text, ARDOUR::TempoSection&);
 109         ~TempoMarker ();
 110
 111         ARDOUR::TempoSection& tempo() const { return _tempo; }
 112
 113   private:
 114         ARDOUR::TempoSection& _tempo;
 115 };
 116
 117 class MeterMarker : public Marker
 118 {
 119   public:
 120         MeterMarker (PublicEditor& editor, ArdourCanvas::Group& parent, guint32 rgba, const string& text, ARDOUR::MeterSection&);
 121         ~MeterMarker ();
 122
 123         ARDOUR::MeterSection& meter() const { return _meter; }
 124
 125   private:
 126         ARDOUR::MeterSection& _meter;
 127 };
 128
 129 #endif /* __gtk_ardour_marker_h__ */