[apps/graph] Hideable cells in values controller

apps/shared/hideable_even_odd_buffer_text_cell.cpp

@@ -0,0 +1,20 @@
+#include "hideable_even_odd_buffer_text_cell.h"
+
+namespace Shared {
+
+KDColor HideableEvenOddBufferTextCell::backgroundColor() const {
+  if (hidden()) {
+    return hideColor();
+  }
+  return EvenOddBufferTextCell::backgroundColor();
+}
+
+void HideableEvenOddBufferTextCell::setHide(bool hide) {
+  if (hidden() != hide) {
+    Hideable::setHide(hide);
+    m_bufferTextView.setBackgroundColor(backgroundColor());
+    reloadCell();
+  }
+}
+
+}