void display_selection_changed();
void btn_apply_clicked();
ARDOUR::PluginPtr load_plugin (ARDOUR::PluginInfoPtr);
bool show_this_plugin (const ARDOUR::PluginInfoPtr&, const std::string&);
void setup_filter_string (std::string&);
void display_selection_changed();
void btn_apply_clicked();
ARDOUR::PluginPtr load_plugin (ARDOUR::PluginInfoPtr);
bool show_this_plugin (const ARDOUR::PluginInfoPtr&, const std::string&);
void setup_filter_string (std::string&);