merge 2.0-ongoing into 3.0 @ 3581 - 3710

git-svn-id: svn://localhost/ardour2/branches/3.0@3712 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 113 insertions, 0 deletions

diff --git a/gtk2_ardour/lv2_plugin_ui.cc b/gtk2_ardour/lv2_plugin_ui.cc
new file mode 100644
index 0000000000..2ca9166dea
--- /dev/null
+++ b/gtk2_ardour/lv2_plugin_ui.cc
@@ -0,0 +1,113 @@
+/*
+    Copyright (C) 2008 Paul Davis 
+    Author: Dave Robillard
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include <ardour/insert.h>
+#include <ardour/lv2_plugin.h>
+
+#include "lv2_plugin_ui.h"
+
+using namespace Gtk;
+using namespace ARDOUR;
+using namespace PBD;
+
+void
+LV2PluginUI::lv2_ui_write(LV2UI_Controller controller,
+             uint32_t         port_index,
+             uint32_t         buffer_size,
+             uint32_t         format,
+             const void*      buffer)
+{
+	LV2PluginUI* me = (LV2PluginUI*)controller;
+	if (*(float*)buffer != me->_values[port_index])
+		me->_lv2->set_parameter(port_index, *(float*)buffer);
+}
+
+void
+LV2PluginUI::parameter_changed (uint32_t port_index, float val)
+{
+	if (val != _values[port_index]) {
+		const LV2UI_Descriptor* ui_desc = slv2_ui_instance_get_descriptor(_inst);
+		LV2UI_Handle ui_handle = slv2_ui_instance_get_handle(_inst);
+		if (ui_desc->port_event)
+			ui_desc->port_event(ui_handle, port_index, 4, 0, &val);
+		_values[port_index] = val;
+	}
+}
+
+LV2PluginUI::LV2PluginUI (boost::shared_ptr<PluginInsert> pi, boost::shared_ptr<LV2Plugin> lv2p)
+	: PlugUIBase (pi)
+	, _lv2(lv2p)
+{
+	_inst = slv2_ui_instantiate(
+			_lv2->slv2_plugin(), _lv2->slv2_ui(), LV2PluginUI::lv2_ui_write, this,
+			_lv2->features());
+			
+	GtkWidget* c_widget = (GtkWidget*)slv2_ui_instance_get_widget(_inst);
+	_gui_widget = Glib::wrap(c_widget);
+	_gui_widget->show_all();
+	pack_start(*_gui_widget, true, true);
+	
+	uint32_t num_ports = slv2_plugin_get_num_ports(lv2p->slv2_plugin());
+	_values = new float[num_ports];
+	for (uint32_t i = 0; i < num_ports; ++i) {
+		bool ok;
+		_values[i] = lv2p->nth_parameter(i, ok);
+		if (ok)
+			lv2_ui_write(this, i, 4, /* FIXME: format */0, &_values[i]);
+	}
+		
+	_lv2->ParameterChanged.connect(mem_fun(*this, &LV2PluginUI::parameter_changed));
+}
+
+LV2PluginUI::~LV2PluginUI ()
+{
+	delete[] _values;
+	// plugin destructor destroys the GUI
+}
+
+int
+LV2PluginUI::get_preferred_height ()
+{
+	Gtk::Requisition r = size_request();
+	return r.height;
+}
+
+int
+LV2PluginUI::get_preferred_width ()
+{
+	Gtk::Requisition r = size_request();
+	return r.width;
+}
+
+int
+LV2PluginUI::package (Gtk::Window& win)
+{
+	/* forward configure events to plugin window */
+	win.signal_configure_event().connect (mem_fun (*this, &LV2PluginUI::configure_handler));
+	return 0;
+}
+
+bool
+LV2PluginUI::configure_handler (GdkEventConfigure* ev)
+{
+	cout << "CONFIGURE" << endl;
+	return false;
+}
+