[apps] Create a class curve view with banner

Change-Id: I49108e9231f97aeed53351e2596b6550568c6314

apps/Makefile

@@ -9,6 +9,7 @@ app_objs += $(addprefix apps/,\
   apps_container.o\
   constant.o\
   curve_view.o\
+  curve_view_with_banner.o\
   curve_view_window.o\
   editable_cell_table_view_controller.o\
   expression_text_field_delegate.o\

apps/curve_view_with_banner.cpp

@@ -0,0 +1,39 @@
+#include "curve_view_with_banner.h"
+#include <assert.h>
+#include <math.h>
+
+CurveViewWithBanner::CurveViewWithBanner(CurveViewWindow * curveViewWindow, float topMarginFactor,
+    float rightMarginFactor, float bottomMarginFactor, float leftMarginFactor) :
+  CurveView(curveViewWindow, topMarginFactor, rightMarginFactor, bottomMarginFactor, leftMarginFactor),
+  m_mainViewSelected(true)
+{
+}
+
+bool CurveViewWithBanner::isMainViewSelected() {
+  return m_mainViewSelected;
+}
+
+void CurveViewWithBanner::selectMainView(bool mainViewSelected) {
+  if (m_mainViewSelected != mainViewSelected) {
+    m_mainViewSelected = mainViewSelected;
+    reloadMainView();
+    layoutSubviews();
+  }
+}
+
+int CurveViewWithBanner::numberOfSubviews() const {
+  return 1;
+};
+
+View * CurveViewWithBanner::subviewAtIndex(int index) {
+  assert(index == 0);
+  return bannerView();
+}
+
+void CurveViewWithBanner::layoutSubviews() {
+  KDRect bannerFrame(KDRect(0, bounds().height()- k_bannerHeight, bounds().width(), k_bannerHeight));
+  if (!m_mainViewSelected) {
+    bannerFrame = KDRectZero;
+  }
+  bannerView()->setFrame(bannerFrame);
+}

apps/curve_view_with_banner.h

@@ -0,0 +1,24 @@
+#ifndef APPS_CURVE_VIEW_WITH_BANNER_H
+#define APPS_CURVE_VIEW_WITH_BANNER_H
+
+#include <escher.h>
+#include "curve_view.h"
+
+class CurveViewWithBanner : public CurveView {
+public:
+  CurveViewWithBanner(CurveViewWindow * curveViewWindow = nullptr, float topMarginFactor = 0.0f,
+    float rightMarginFactor = 0.0f, float bottomMarginFactor = 0.0f, float leftMarginFactor = 0.0f);
+  virtual void reloadMainView() = 0;
+  bool isMainViewSelected();
+  void selectMainView(bool mainViewSelected);
+protected:
+  void layoutSubviews() override;
+  bool m_mainViewSelected;
+private:
+  constexpr static KDCoordinate k_bannerHeight = 30;
+  int numberOfSubviews() const override;
+  View * subviewAtIndex(int index) override;
+  virtual View * bannerView() = 0;
+};
+
+#endif