[apps/shared] Move partial classes from grpah/graph to shared to be used

by sequence

Change-Id: I0e18be96cfaa92b6a51836ae8aa072fa6cf0f1af

apps/shared/function_graph_view.cpp

@@ -0,0 +1,37 @@
+#include "function_graph_view.h"
+#include <assert.h>
+#include <math.h>
+#include <float.h>
+using namespace Poincare;
+
+namespace Shared {
+
+FunctionGraphView::FunctionGraphView(InteractiveCurveViewRange * graphRange,
+  CurveViewCursor * cursor, BannerView * bannerView, View * cursorView) :
+  CurveView(graphRange, cursor, bannerView, cursorView),
+  m_context(nullptr)
+{
+}
+
+void FunctionGraphView::drawRect(KDContext * ctx, KDRect rect) const {
+  ctx->fillRect(rect, KDColorWhite);
+  drawGrid(ctx, rect);
+  drawAxes(ctx, rect, Axis::Horizontal);
+  drawAxes(ctx, rect, Axis::Vertical);
+  drawLabels(ctx, rect, Axis::Horizontal, true);
+  drawLabels(ctx, rect, Axis::Vertical, true);
+}
+
+void FunctionGraphView::setContext(Context * context) {
+  m_context = context;
+}
+
+Context * FunctionGraphView::context() const {
+  return m_context;
+}
+
+char * FunctionGraphView::label(Axis axis, int index) const {
+  return (axis == Axis::Horizontal ? (char *)m_xLabels[index] : (char *)m_yLabels[index]);
+}
+
+}