gtk2_ardour/lv2_plugin_ui.h

   1 /*
   2     Copyright (C) 2008-2012 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 __ardour_lv2_plugin_ui_h__
  21 #define __ardour_lv2_plugin_ui_h__
  22
  23 #ifdef WAF_BUILD
  24 #include "gtk2ardour-config.h"
  25 #endif
  26
  27 #include <list>
  28 #include <map>
  29 #include <vector>
  30
  31 #include <gtkmm/widget.h>
  32 #include <sigc++/signal.h>
  33
  34 #include "ardour_dialog.h"
  35 #include "ardour/types.h"
  36 #include "plugin_ui.h"
  37
  38 #ifdef LV2_SUPPORT
  39
  40 #include "lv2_external_ui.h"
  41
  42 namespace ARDOUR {
  43         class PluginInsert;
  44         class LV2Plugin;
  45 }
  46
  47 class LV2PluginUI : public PlugUIBase, public Gtk::VBox
  48 {
  49   public:
  50         LV2PluginUI (boost::shared_ptr<ARDOUR::PluginInsert>,
  51                      boost::shared_ptr<ARDOUR::LV2Plugin>);
  52         ~LV2PluginUI ();
  53
  54         gint get_preferred_height ();
  55         gint get_preferred_width ();
  56         bool resizable ();
  57
  58         bool start_updating(GdkEventAny*);
  59         bool stop_updating(GdkEventAny*);
  60
  61         int package (Gtk::Window&);
  62
  63   private:
  64
  65         void parameter_changed (uint32_t, float);
  66
  67         typedef boost::shared_ptr<ARDOUR::AutomationControl> ControllableRef;
  68
  69         boost::shared_ptr<ARDOUR::LV2Plugin> _lv2;
  70         std::vector<int>                     _output_ports;
  71         sigc::connection                     _screen_update_connection;
  72         Gtk::Widget*                         _gui_widget;
  73         /** a box containing the focus, bypass, delete, save / add preset buttons etc. */
  74         Gtk::HBox*                           _ardour_buttons_box;
  75         float*                               _values;
  76         std::vector<ControllableRef>         _controllables;
  77         struct lv2_external_ui_host          _external_ui_host;
  78         LV2_Feature                          _external_ui_feature;
  79         struct lv2_external_ui*              _external_ui_ptr;
  80         LV2_Feature                          _parent_feature;
  81         Gtk::Window*                         _win_ptr;
  82         void*                                _inst;
  83
  84         static void on_external_ui_closed(void* controller);
  85
  86         static void write_from_ui(void*       controller,
  87                                   uint32_t    port_index,
  88                                   uint32_t    buffer_size,
  89                                   uint32_t    format,
  90                                   const void* buffer);
  91
  92         static void write_to_ui(void*       controller,
  93                                 uint32_t    port_index,
  94                                 uint32_t    buffer_size,
  95                                 uint32_t    format,
  96                                 const void* buffer);
  97
  98         static uint32_t port_index(void* controller, const char* symbol);
  99
 100         static void touch(void*    controller,
 101                           uint32_t port_index,
 102                           bool     grabbed);
 103
 104         void update_timeout();
 105
 106         void lv2ui_instantiate(const std::string& title);
 107         void lv2ui_free();
 108
 109         void parameter_update(uint32_t, float);
 110         bool configure_handler (GdkEventConfigure*);
 111         void save_plugin_setting ();
 112         void output_update();
 113         bool is_update_wanted(uint32_t index);
 114
 115         virtual bool on_window_show(const std::string& title);
 116         virtual void on_window_hide();
 117 };
 118
 119 #endif // LV2_SUPPORT
 120
 121 #endif /* __ardour_lv2_plugin_ui_h__ */
 122