VstEmbed: Support changing embed method without restart

plugins/vestige/vestige.cpp

@@ -32,6 +32,7 @@
 #include <QMenu>
 #include <QDomElement>
 
+#include "ConfigManager.h"
 #include "BufferManager.h"
 #include "Engine.h"
 #include "gui_templates.h"
@@ -89,6 +90,10 @@ vestigeInstrument::vestigeInstrument( InstrumentTrack * _instrument_track ) :
 	// now we need a play-handle which cares for calling play()
 	InstrumentPlayHandle * iph = new InstrumentPlayHandle( this, _instrument_track );
 	Engine::mixer()->addPlayHandle( iph );
+
+	connect( ConfigManager::inst(), SIGNAL( valueChanged(QString,QString,QString) ),
+			 this, SLOT( handleConfigChange(QString, QString, QString) ),
+			 Qt::QueuedConnection );
 }
 
 
@@ -170,6 +175,20 @@ void vestigeInstrument::setParameter( void )
 	}
 }
 
+void vestigeInstrument::handleConfigChange(QString cls, QString attr, QString value)
+{
+	if ( cls == "ui" && attr == "vstembedmethod" )
+	{
+		reloadPlugin();
+	}
+}
+
+void vestigeInstrument::reloadPlugin()
+{
+	closePlugin();
+	loadFile( m_pluginDLL );
+}
+
 
 
 
@@ -366,10 +385,6 @@ void vestigeInstrument::closePlugin( void )
 	}
 
 	m_pluginMutex.lock();
-	if( m_plugin )
-	{
-		delete m_plugin->pluginWidget();
-	}
 	delete m_plugin;
 	m_plugin = NULL;
 	m_pluginMutex.unlock();

plugins/vestige/vestige.h

@@ -74,6 +74,8 @@ public:
 
 protected slots:
 	void setParameter( void );
+	void handleConfigChange( QString cls, QString attr, QString value );
+	void reloadPlugin();
 
 private:
 	void closePlugin( void );

plugins/vst_base/VstPlugin.cpp

@@ -587,9 +587,9 @@ void VstPlugin::showUI()
 
 void VstPlugin::hideUI()
 {
-	RemotePlugin::hideUI();
 	if ( m_embedMethod == "none" )
 	{
+		RemotePlugin::hideUI();
 	}
 	else if ( pluginWidget() != nullptr )
 	{