[apps] Create an class window curve with with cursor

Change-Id: Ic90eccedeefc689858576e190fd5df1d3f8b30e3

apps/Makefile

@@ -13,6 +13,7 @@ app_objs += $(addprefix apps/,\
   curve_view.o\
   curve_view_with_banner.o\
   curve_view_window.o\
+  curve_view_window_with_cursor.o\
   data.o\
   data_controller.o\
   editable_cell_table_view_controller.o\

apps/curve_view_window_with_cursor.cpp

@@ -0,0 +1,16 @@
+#include "curve_view_window_with_cursor.h"
+#include <math.h>
+
+CurveViewWindowWithCursor::CurveViewWindowWithCursor() :
+  m_xCursorPosition(NAN),
+  m_yCursorPosition(NAN)
+{
+}
+
+float CurveViewWindowWithCursor::xCursorPosition() {
+  return m_xCursorPosition;
+}
+
+float CurveViewWindowWithCursor::yCursorPosition() {
+  return m_yCursorPosition;
+}

apps/curve_view_window_with_cursor.h

@@ -0,0 +1,16 @@
+#ifndef APPS_CURVE_VIEW_WINDOW_WITH_CURSOR_H
+#define APPS_CURVE_VIEW_WINDOW_WITH_CURSOR_H
+
+#include "curve_view_window.h"
+
+class CurveViewWindowWithCursor : public CurveViewWindow {
+public:
+  CurveViewWindowWithCursor();
+  float xCursorPosition();
+  float yCursorPosition();
+protected:
+  float m_xCursorPosition;
+  float m_yCursorPosition;
+};
+
+#endif