[apps/sequence] create a class grpah controller

Change-Id: Iaf9e9c03bd4b9946cddaefb14af5e014075ee109

apps/sequence/Makefile

@@ -3,6 +3,7 @@ app_objs += $(addprefix apps/sequence/,\
   graph/banner_view.o\
   graph/curve_parameter_controller.o\
   graph/curve_view_range.o\
+  graph/graph_controller.o\
   graph/graph_view.o\
   list/list_controller.o\
   list/list_parameter_controller.o\

apps/sequence/app.cpp

@@ -14,7 +14,7 @@ App::App(Container * container, Context * context) :
   m_listStackViewController(StackViewController(&m_tabViewController, &m_listHeader)),
   m_graphController(&m_graphAlternateEmptyViewController, &m_sequenceStore, &m_graphHeader),
   m_graphAlternateEmptyViewController(AlternateEmptyViewController(&m_graphHeader, &m_graphController, &m_graphController)),
-  m_graphHeader(HeaderViewController(nullptr, &m_graphAlternateEmptyViewController, &m_graphController)),
+  m_graphHeader(HeaderViewController(&m_graphStackViewController, &m_graphAlternateEmptyViewController, &m_graphController)),
   m_graphStackViewController(StackViewController(&m_tabViewController, &m_graphHeader)),
   m_valuesController(&m_valuesAlternateEmptyViewController, &m_sequenceStore, &m_valuesHeader),
   m_valuesAlternateEmptyViewController(AlternateEmptyViewController(&m_valuesHeader, &m_valuesController, &m_valuesController)),

apps/sequence/app.h

@@ -5,6 +5,7 @@
 #include <poincare.h>
 #include "local_context.h"
 #include "sequence_store.h"
+#include "graph/graph_controller.h"
 #include "list/list_controller.h"
 #include "values/values_controller.h"
 #include "../shared/text_field_delegate_app.h"
@@ -23,7 +24,7 @@ private:
   ListController m_listController;
   HeaderViewController m_listHeader;
   StackViewController m_listStackViewController;
-  ValuesController m_graphController;
+  GraphController m_graphController;
   AlternateEmptyViewController m_graphAlternateEmptyViewController;
   HeaderViewController m_graphHeader;
   StackViewController m_graphStackViewController;

apps/sequence/graph/graph_controller.cpp

@@ -0,0 +1,73 @@
+#include "graph_controller.h"
+
+using namespace Shared;
+
+namespace Sequence {
+
+GraphController::GraphController(Responder * parentResponder, SequenceStore * sequenceStore, HeaderViewController * header) :
+  FunctionGraphController(parentResponder, header, &m_graphRange, &m_view),
+  m_bannerView(BannerView()),
+  m_view(GraphView(sequenceStore, &m_graphRange, &m_cursor, &m_bannerView, &m_cursorView)),
+  m_graphRange(CurveViewRange(&m_cursor, this)),
+  m_curveParameterController(CurveParameterController(&m_graphRange, &m_cursor)),
+  m_sequenceStore(sequenceStore)
+{
+}
+
+const char * GraphController::emptyMessage() {
+  if (m_sequenceStore->numberOfDefinedFunctions() == 0) {
+    return "Aucune suite";
+  }
+  return "Aucune suite activee";
+}
+
+BannerView * GraphController::bannerView() {
+  return &m_bannerView;
+}
+
+bool GraphController::moveCursorHorizontally(int direction) {
+  float xCursorPosition = roundf(m_cursor.x());
+  if (direction < 0 && xCursorPosition <= 0) {
+    return false;
+  }
+  float x = direction > 0 ? xCursorPosition + 1.0f :
+    xCursorPosition -  1.0f;
+  Sequence * s = m_sequenceStore->activeFunctionAtIndex(m_indexFunctionSelectedByCursor);
+  TextFieldDelegateApp * myApp = (TextFieldDelegateApp *)app();
+  float y = s->evaluateAtAbscissa(x, myApp->localContext());
+  m_cursor.moveTo(x, y);
+  m_graphRange.panToMakePointVisible(x, y, k_cursorTopMarginRatio, k_cursorRightMarginRatio, k_cursorBottomMarginRatio, k_cursorLeftMarginRatio);
+  return true;
+}
+
+void GraphController::initCursorParameters() {
+  float x = roundf((interactiveCurveViewRange()->xMin()+interactiveCurveViewRange()->xMax())/2.0f);
+  m_indexFunctionSelectedByCursor = 0;
+  TextFieldDelegateApp * myApp = (TextFieldDelegateApp *)app();
+  int functionIndex = 0;
+  float y = 0;
+  do {
+    Sequence * firstFunction = m_sequenceStore->activeFunctionAtIndex(functionIndex++);
+    y = firstFunction->evaluateAtAbscissa(x, myApp->localContext());
+  } while (isnan(y) && functionIndex < m_sequenceStore->numberOfActiveFunctions());
+  m_cursor.moveTo(x, y);
+  m_graphRange.panToMakePointVisible(x, y, k_cursorTopMarginRatio, k_cursorRightMarginRatio, k_cursorBottomMarginRatio, k_cursorLeftMarginRatio);
+}
+
+CurveViewRange * GraphController::interactiveCurveViewRange() {
+  return &m_graphRange;
+}
+
+SequenceStore * GraphController::functionStore() const {
+  return m_sequenceStore;
+}
+
+GraphView * GraphController::functionGraphView() {
+  return &m_view;
+}
+
+CurveParameterController * GraphController::curveParameterController() {
+  return &m_curveParameterController;
+}
+
+}

apps/sequence/graph/graph_controller.h

@@ -0,0 +1,35 @@
+#ifndef SEQUENCE_GRAPH_CONTROLLER_H
+#define SEQUENCE_GRAPH_CONTROLLER_H
+
+#include "graph_view.h"
+#include "banner_view.h"
+#include "curve_parameter_controller.h"
+#include "curve_view_range.h"
+#include "../../shared/function_graph_controller.h"
+#include "../sequence_store.h"
+
+namespace Sequence {
+
+class GraphController : public Shared::FunctionGraphController {
+public:
+  GraphController(Responder * parentResponder, SequenceStore * sequenceStore, HeaderViewController * header);
+  const char * emptyMessage() override;
+private:
+  BannerView * bannerView() override;
+  bool moveCursorHorizontally(int direction) override;
+  void initCursorParameters() override;
+  CurveViewRange * interactiveCurveViewRange() override;
+  SequenceStore * functionStore() const override;
+  GraphView * functionGraphView() override;
+  CurveParameterController * curveParameterController() override;
+  BannerView m_bannerView;
+  GraphView m_view;
+  CurveViewRange m_graphRange;
+  CurveParameterController m_curveParameterController;
+  SequenceStore * m_sequenceStore;
+};
+
+
+}
+
+#endif