Moved all the bobbycar gui code into this library

src/changevaluedisplay_bool.cpp

@@ -0,0 +1,32 @@
+#include "changevaluedisplay_bool.h"
+
+// local includes
+#include "actions/setvalueaction.h"
+#include "actions/backproxyaction.h"
+#include "icons/back.h"
+
+namespace espgui {
+namespace {
+constexpr char TEXT_TRUE[] = "true";
+constexpr char TEXT_FALSE[] = "false";
+constexpr char TEXT_BACK[] = "Back";
+} // namespace
+
+ChangeValueDisplay<bool>::ChangeValueDisplay()
+{
+    constructMenuItem<makeComponentArgs<MenuItem, SetValueAction<bool>, StaticText<TEXT_TRUE>>>(true, *this, *this);
+    constructMenuItem<makeComponentArgs<MenuItem, SetValueAction<bool>, StaticText<TEXT_FALSE>>>(false, *this, *this);
+    constructMenuItem<makeComponentArgs<MenuItem, BackProxyAction, StaticText<TEXT_BACK>, StaticMenuItemIcon<&icons::back>>>(*this);
+}
+
+void ChangeValueDisplay<bool>::start()
+{
+    Base::start();
+
+    switch (getValue())
+    {
+    case true:  setSelectedIndex(0); break;
+    case false: setSelectedIndex(1); break;
+    }
+}
+} // namespace espgui