gtk2_ardour/panner2d.h

   1 /*
   2     Copyright (C) 2002 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 __ardour_panner_2d_h__
  21 #define __ardour_panner_2d_h__
  22
  23 #include <sys/types.h>
  24 #include <map>
  25 #include <vector>
  26
  27 #include <glibmm/refptr.h>
  28 #include <gtkmm/drawingarea.h>
  29 #include <gtkmm/window.h>
  30 #include <gtkmm/box.h>
  31 #include <gtkmm/button.h>
  32 #include <gtkmm/spinbutton.h>
  33 #include <gtkmm/adjustment.h>
  34
  35 namespace ARDOUR {
  36         class Panner;
  37 }
  38
  39 namespace Gtk {
  40         class Menu;
  41         class CheckMenuItem;
  42 }
  43
  44 namespace Pango {
  45         class Layout;
  46 }
  47
  48 class Panner2dWindow;
  49
  50 class Panner2d : public Gtk::DrawingArea
  51 {
  52   public:
  53         Panner2d (boost::shared_ptr<ARDOUR::Panner>, int32_t height);
  54         ~Panner2d ();
  55
  56         void allow_x_motion(bool);
  57         void allow_y_motion(bool);
  58         void allow_target_motion (bool);
  59
  60         void hide_puck (int which);
  61         void show_puck (int which);
  62         int  add_target (float x, float y);
  63         int  add_puck (const char* text, float x, float y);
  64         void hide_target (int);
  65         void show_target (int);
  66         void remove_target (int);
  67         void drop_targets ();
  68         void drop_pucks ();
  69         void move_target (int, float x, float y);
  70         void move_puck (int, float x, float y);
  71         void reset (uint32_t n_inputs);
  72
  73         Gtk::Adjustment& azimuth (uint32_t which);
  74
  75         boost::shared_ptr<ARDOUR::Panner> get_panner() const { return panner; }
  76
  77         sigc::signal<void,int> PuckMoved;
  78         sigc::signal<void,int> TargetMoved;
  79
  80   protected:
  81         bool on_expose_event (GdkEventExpose *);
  82         bool on_button_press_event (GdkEventButton *);
  83         bool on_button_release_event (GdkEventButton *);
  84         bool on_motion_notify_event (GdkEventMotion *);
  85         void on_size_allocate (Gtk::Allocation& alloc);
  86
  87   private:
  88         struct Target {
  89             Gtk::Adjustment x;
  90             Gtk::Adjustment y;
  91             Gtk::Adjustment azimuth;
  92             bool visible;
  93             char* text;
  94
  95             Target (float xa, float ya, const char* txt = 0);
  96             ~Target ();
  97
  98             void set_text (const char*);
  99         };
 100
 101         boost::shared_ptr<ARDOUR::Panner> panner;
 102         Glib::RefPtr<Pango::Layout> layout;
 103
 104         typedef std::map<int,Target *> Targets;
 105         Targets targets;
 106         Targets pucks;
 107
 108         Target *drag_target;
 109         int drag_x;
 110         int drag_y;
 111         int     drag_index;
 112         bool    drag_is_puck;
 113         bool  allow_x;
 114         bool  allow_y;
 115         bool  allow_target;
 116         int width;
 117         int height;
 118
 119         bool bypassflag;
 120
 121         gint compute_x (float);
 122         gint compute_y (float);
 123
 124         Target *find_closest_object (gdouble x, gdouble y, int& which, bool& is_puck) const;
 125
 126         gint handle_motion (gint, gint, GdkModifierType);
 127
 128         void toggle_bypass ();
 129         void handle_state_change ();
 130         void handle_position_change ();
 131
 132         PBD::ScopedConnection state_connection;
 133         PBD::ScopedConnection change_connection;
 134 };
 135
 136 class Panner2dWindow : public Gtk::Window
 137 {
 138   public:
 139         Panner2dWindow (boost::shared_ptr<ARDOUR::Panner>, int32_t height, uint32_t inputs);
 140
 141         void reset (uint32_t n_inputs);
 142
 143   private:
 144         Panner2d widget;
 145
 146         Gtk::HBox   hpacker;
 147         Gtk::VBox   button_box;
 148         Gtk::Button reset_button;
 149         Gtk::ToggleButton bypass_button;
 150         Gtk::ToggleButton mute_button;
 151         Gtk::VBox   spinner_box;
 152         Gtk::VBox   left_side;
 153
 154         std::vector<Gtk::SpinButton*> spinners;
 155 };
 156
 157 #endif /* __ardour_panner_2d_h__ */