[apps/settings] Implement setting menu with a tree (for navigation)

Change-Id: Ie27c3c25085a279c47eb53f3f1054d970b607f8b

apps/settings/sub_controller.cpp

@@ -0,0 +1,64 @@
+#include "sub_controller.h"
+#include <assert.h>
+
+namespace Settings {
+
+SubController::SubController(Responder * parentResponder) :
+  ViewController(parentResponder),
+  m_selectableTableView(SelectableTableView(this, this, Metric::TopMargin, Metric::RightMargin,
+    Metric::BottomMargin, Metric::LeftMargin)),
+  m_nodeModel(nullptr)
+{
+}
+
+const char * SubController::title() const {
+  if (m_nodeModel) {
+    return m_nodeModel->label();
+  }
+  return "";
+}
+
+View * SubController::view() {
+  return &m_selectableTableView;
+}
+
+void SubController::didBecomeFirstResponder() {
+  m_selectableTableView.selectCellAtLocation(0, 0);
+  app()->setFirstResponder(&m_selectableTableView);
+}
+
+bool SubController::handleEvent(Ion::Events::Event event) {
+  return false;
+}
+
+int SubController::numberOfRows() {
+  if (m_nodeModel) {
+    return m_nodeModel->numberOfChildren();
+  }
+  return 0;
+}
+
+TableViewCell * SubController::reusableCell(int index) {
+  assert(index >= 0);
+  assert(index < k_totalNumberOfCell);
+  return &m_cells[index];
+}
+
+int SubController::reusableCellCount() {
+  return k_totalNumberOfCell;
+}
+
+KDCoordinate SubController::cellHeight() {
+  return Metric::ParameterCellHeight;
+}
+
+void SubController::willDisplayCellForIndex(TableViewCell * cell, int index) {
+  MenuListCell * myCell = (MenuListCell *)cell;
+  myCell->setText(m_nodeModel->children(index)->label());
+}
+
+void SubController::setNodeModel(const Node * nodeModel) {
+  m_nodeModel = (Node *)nodeModel;
+}
+
+}