[apps/probability] Improve the law controller

Change-Id: Ic70cc03d70b1faa383a01c9c2e00136d483b114b

apps/probability/parameters_controller.cpp

@@ -0,0 +1,29 @@
+#include "parameters_controller.h"
+
+namespace Probability {
+
+ParametersController::ParametersController(Responder * parentResponder, Law * law) :
+  ViewController(parentResponder),
+  m_view(SolidColorView(KDColor::RGB24(0xF3619B))),
+  m_law(law)
+{
+}
+
+View * ParametersController::view() {
+  return &m_view;
+}
+
+const char * ParametersController::title() const {
+  return "Parameters";
+}
+
+bool ParametersController::handleEvent(Ion::Events::Event event) {
+  return false;
+}
+
+void ParametersController::didResignFirstResponder() {
+  m_law->setType(Law::Type::NoType);
+}
+
+}
+