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Fix CheckOption crash on session-reload 

The ToggleAction has a lifetime of the UI, independent of the
CheckOption widget. The CheckOption needs to unsubscribe from the
signal_toggled() signal when it is deleted.

Also a CheckOption without a Action makes no sense. require _action
to be give at instantiation time.
This commit is contained in:
Robin Gareus 2018-12-08 21:18:54 +01:00
parent 474d68c051
commit 9ccc56e162
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
2 changed files with 18 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
gtk2_ardour/option_editor.cc
View File

@ -213,18 +213,22 @@ CheckOption::CheckOption (string const & i, string const & n, Glib::RefPtr<Gtk::
_button->signal_toggled().connect (sigc::mem_fun (*this, &CheckOption::toggled));
Gtkmm2ext::Activatable::set_related_action (act);
if (_action) {
assert (_action);
action_sensitivity_changed ();
action_sensitivity_changed ();
Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (_action);
if (tact) {
action_toggled ();
tact->signal_toggled().connect (sigc::mem_fun (*this, &CheckOption::action_toggled));
}
_action->connect_property_changed ("sensitive", sigc::mem_fun (*this, &CheckOption::action_sensitivity_changed));
Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (_action);
if (tact) {
action_toggled ();
_callback_connection = tact->signal_toggled().connect (sigc::mem_fun (*this, &CheckOption::action_toggled));
}
_action->connect_property_changed ("sensitive", sigc::mem_fun (*this, &CheckOption::action_sensitivity_changed));
}
CheckOption::~CheckOption ()
{
_callback_connection.disconnect ();
}
void

8
gtk2_ardour/option_editor.h
View File

@ -193,6 +193,7 @@ class CheckOption : public OptionEditorComponent , public Gtkmm2ext::Activatable
{
public:
CheckOption (std::string const &, std::string const &, Glib::RefPtr<Gtk::Action> act );
virtual ~CheckOption ();
void set_state_from_config () {}
void parameter_changed (std::string const &) {}
void add_to_page (OptionEditorPage*);
@ -203,17 +204,18 @@ public:
Gtk::Widget& tip_widget() { return *_button; }
protected:
void action_toggled ();
void action_sensitivity_changed () {}
void action_visibility_changed () {}
protected:
virtual void toggled ();
sigc::slot<bool> _get; ///< slot to get the configuration variable's value
sigc::slot<bool, bool> _set; ///< slot to set the configuration variable's value
Gtk::CheckButton* _button; ///< UI button
Gtk::Label* _label; ///< label for button, so we can use markup
private:
sigc::connection _callback_connection;
};
/** Component which provides the UI to handle a boolean option using a GTK CheckButton */