+ sigc::slot<std::string> _get; ///< slot to get the configuration variable's value
+ sigc::slot<bool, std::string> _set; ///< slot to set the configuration variable's value
+ Gtk::Label* _label; ///< UI label
+ Gtk::Entry* _entry; ///< UI entry
+};
+
+
+/** Component which provides the UI to handle an enumerated option using a GTK CheckButton.
+ * The template parameter is the enumeration.
+ */
+template <class T>
+class ComboOption : public Option
+{
+public:
+
+ /** Construct an ComboOption.
+ * @param i id
+ * @param n User-visible name.
+ * @param g Slot to get the variable's value.
+ * @param s Slot to set the variable's value.
+ */
+ ComboOption (
+ std::string const & i,
+ std::string const & n,
+ sigc::slot<T> g,
+ sigc::slot<bool, T> s
+ )
+ : Option (i, n),
+ _get (g),
+ _set (s)
+ {
+ _label = manage (new Gtk::Label (n + ":"));
+ _label->set_alignment (0, 0.5);
+ _combo = manage (new Gtk::ComboBoxText);
+ _combo->signal_changed().connect (sigc::mem_fun (*this, &ComboOption::changed));
+ }
+
+ void set_state_from_config () {
+ uint32_t r = 0;
+ while (r < _options.size() && _get () != _options[r]) {
+ ++r;
+ }
+
+ if (r < _options.size()) {
+ _combo->set_active (r);
+ }
+ }
+
+ void add_to_page (OptionEditorPage* p)
+ {
+ add_widgets_to_page (p, _label, _combo);
+ }
+
+ /** Add an allowed value for this option.
+ * @param e Enumeration.
+ * @param o User-visible name for this value.
+ */
+ void add (T e, std::string const & o) {
+ _options.push_back (e);
+ _combo->append_text (o);
+ }
+
+ void clear () {
+ _combo->clear_items();
+ _options.clear ();
+ }
+
+ void changed () {
+ uint32_t const r = _combo->get_active_row_number ();
+ if (r < _options.size()) {
+ _set (_options[r]);
+ }
+ }
+
+ void set_sensitive (bool yn) {
+ _combo->set_sensitive (yn);
+ }
+
+private:
+
+ sigc::slot<T> _get;
+ sigc::slot<bool, T> _set;
+ Gtk::Label* _label;
+ Gtk::ComboBoxText* _combo;
+ std::vector<T> _options;
+};
+
+
+/** Component which provides the UI to handle an numeric option using a GTK SpinButton */
+template <class T>
+class SpinOption : public Option
+{
+public:
+ /** Construct an SpinOption.
+ * @param i id
+ * @param n User-visible name.
+ * @param g Slot to get the variable's value.
+ * @param s Slot to set the variable's value.
+ * @param min Variable minimum value.
+ * @param max Variable maximum value.
+ * @param step Step for the spin button.
+ * @param page Page step for the spin button.
+ * @param unit Unit name.
+ * @param scale Scaling factor (such that for a value x in the spinbutton, x * scale is written to the config)
+ */
+ SpinOption (
+ std::string const & i,
+ std::string const & n,
+ sigc::slot<T> g,
+ sigc::slot<bool, T> s,
+ T min,
+ T max,
+ T step,
+ T page,
+ std::string const & unit = "",
+ float scale = 1
+ )
+ : Option (i, n),
+ _get (g),
+ _set (s),
+ _scale (scale)
+ {
+ _label = manage (new Gtk::Label (n + ":"));
+ _label->set_alignment (0, 0.5);
+
+ _spin = manage (new Gtk::SpinButton);
+ _spin->set_range (min, max);
+ _spin->set_increments (step, page);
+
+ _box = manage (new Gtk::HBox);
+ _box->pack_start (*_spin, true, true);
+ _box->set_spacing (4);
+ if (unit.length()) {
+ _box->pack_start (*manage (new Gtk::Label (unit)), false, false);
+ }
+
+ _spin->signal_value_changed().connect (sigc::mem_fun (*this, &SpinOption::changed));
+ }
+
+ void set_state_from_config ()
+ {
+ _spin->set_value (_get () / _scale);
+ }
+
+ void add_to_page (OptionEditorPage* p)
+ {
+ add_widgets_to_page (p, _label, _box);
+ }
+
+ void changed ()
+ {
+ _set (static_cast<T> (_spin->get_value ()) * _scale);
+ }
+
+private:
+ sigc::slot<T> _get;
+ sigc::slot<bool, T> _set;
+ float _scale;
+ Gtk::Label* _label;
+ Gtk::HBox* _box;
+ Gtk::SpinButton* _spin;
+};