[apps/graph/graph] Define PreimageParameterController class

apps/graph/graph/preimage_parameter_controller.cpp

@@ -0,0 +1,53 @@
+#include "preimage_parameter_controller.h"
+#include "../app.h"
+#include <assert.h>
+
+namespace Graph {
+
+PreimageParameterController::PreimageParameterController(
+  Responder * parentResponder,
+  InputEventHandlerDelegate * inputEventHandlerDelegate,
+  Shared::InteractiveCurveViewRange * graphRange,
+  Shared::CurveViewCursor * cursor,
+  PreimageGraphController * preimageGraphController
+) :
+  Shared::GoToParameterController(
+    parentResponder,
+    inputEventHandlerDelegate,
+    graphRange,
+    cursor,
+    I18n::Message::Y
+  ),
+  m_preimageGraphController(preimageGraphController)
+{
+}
+
+const char * PreimageParameterController::title() {
+  return I18n::translate(I18n::Message::Preimage);
+}
+
+void PreimageParameterController::viewWillAppear() {
+  m_preimageGraphController->setImage(m_cursor->y());
+  Shared::GoToParameterController::viewWillAppear();
+}
+
+void PreimageParameterController::buttonAction() {
+  m_preimageGraphController->setRecord(m_record);
+  StackViewController * stack = static_cast<StackViewController *>(parentResponder());
+  stack->pop();
+  stack->pop();
+  stack->pop();
+  stack->push(m_preimageGraphController);
+}
+
+double PreimageParameterController::parameterAtIndex(int index) {
+  assert(index == 0);
+  return m_preimageGraphController->image();
+}
+bool PreimageParameterController::setParameterAtIndex(int parameterIndex, double f) {
+  assert(parameterIndex == 0);
+  m_preimageGraphController->setImage(f);
+  return true;
+}
+
+}