gtk2_ardour/lv2_plugin_ui.h

   1 /*
   2     Copyright (C) 2008 Paul Davis
   3     Author: Dave 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
  21 #ifndef __ardour_lv2_plugin_ui_h__
  22 #define __ardour_lv2_plugin_ui_h__
  23
  24 #ifdef WAF_BUILD
  25 #include "gtk2ardour-config.h"
  26 #endif
  27
  28 #include <vector>
  29 #include <map>
  30 #include <list>
  31
  32 #include <sigc++/signal.h>
  33 #include <gtkmm/widget.h>
  34
  35 #include "ardour_dialog.h"
  36 #include "ardour/types.h"
  37 #include "plugin_ui.h"
  38
  39 #ifdef HAVE_SLV2
  40
  41 #include "lv2_external_ui.h"
  42
  43 namespace ARDOUR {
  44         class PluginInsert;
  45         class LV2Plugin;
  46 }
  47
  48 class LV2PluginUI : public PlugUIBase, public Gtk::VBox
  49 {
  50   public:
  51         LV2PluginUI (boost::shared_ptr<ARDOUR::PluginInsert>, boost::shared_ptr<ARDOUR::LV2Plugin>);
  52         ~LV2PluginUI ();
  53
  54         gint get_preferred_height ();
  55         gint get_preferred_width ();
  56         bool start_updating(GdkEventAny*);
  57         bool stop_updating(GdkEventAny*);
  58
  59         int package (Gtk::Window&);
  60
  61   private:
  62         boost::shared_ptr<ARDOUR::LV2Plugin> _lv2;
  63         std::vector<int> _output_ports;
  64         sigc::connection _screen_update_connection;
  65
  66         Gtk::Widget*   _gui_widget;
  67         SLV2UIInstance _inst;
  68         float*         _values;
  69
  70         struct lv2_external_ui_host _external_ui_host;
  71         LV2_Feature _external_ui_feature;
  72         struct lv2_external_ui* _external_ui_ptr;
  73         Gtk::Window* _win_ptr;
  74
  75         static void on_external_ui_closed(LV2UI_Controller controller);
  76
  77         static void lv2_ui_write(
  78                         LV2UI_Controller controller,
  79                         uint32_t         port_index,
  80                         uint32_t         buffer_size,
  81                         uint32_t         format,
  82                         const void*      buffer);
  83
  84         void lv2ui_instantiate(const Glib::ustring& title);
  85
  86         void parameter_changed(uint32_t, float);
  87         void parameter_update(uint32_t, float);
  88         bool configure_handler (GdkEventConfigure*);
  89         void save_plugin_setting ();
  90         void output_update();
  91         bool is_update_wanted(uint32_t index);
  92
  93         virtual bool on_window_show(const Glib::ustring& title);
  94         virtual void on_window_hide();
  95
  96         PBD::ScopedConnection parameter_connection;
  97 };
  98
  99 #endif // HAVE_SLV2
 100
 101 #endif /* __ardour_lv2_plugin_ui_h__ */
 102