Use FastScreenUpdate for UI message updating, and only if plugin has message output...
[ardour.git] / 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 start_updating(GdkEventAny*);
57         bool stop_updating(GdkEventAny*);
58
59         int package (Gtk::Window&);
60
61   private:
62
63         void parameter_changed (uint32_t, float);
64
65         typedef boost::shared_ptr<ARDOUR::AutomationControl> ControllableRef;
66
67         boost::shared_ptr<ARDOUR::LV2Plugin> _lv2;
68         std::vector<int>                     _output_ports;
69         sigc::connection                     _screen_update_connection;
70         Gtk::Widget*                         _gui_widget;
71         float*                               _values;
72         std::vector<ControllableRef>         _controllables;
73         struct lv2_external_ui_host          _external_ui_host;
74         LV2_Feature                          _external_ui_feature;
75         struct lv2_external_ui*              _external_ui_ptr;
76         Gtk::Window*                         _win_ptr;
77         void*                                _inst;
78
79         static void on_external_ui_closed(void* controller);
80
81         static void write_from_ui(void*       controller,
82                                   uint32_t    port_index,
83                                   uint32_t    buffer_size,
84                                   uint32_t    format,
85                                   const void* buffer);
86
87         static void write_to_ui(void*       controller,
88                                 uint32_t    port_index,
89                                 uint32_t    buffer_size,
90                                 uint32_t    format,
91                                 const void* buffer);
92
93         void update_timeout();
94
95         void lv2ui_instantiate(const std::string& title);
96         void lv2ui_free();
97
98         void parameter_update(uint32_t, float);
99         bool configure_handler (GdkEventConfigure*);
100         void save_plugin_setting ();
101         void output_update();
102         bool is_update_wanted(uint32_t index);
103
104         virtual bool on_window_show(const std::string& title);
105         virtual void on_window_hide();
106 };
107
108 #endif // LV2_SUPPORT
109
110 #endif /* __ardour_lv2_plugin_ui_h__ */
111