Upsilon/apps/probability/law_controller.cpp

#include "law_controller.h"
#include <assert.h>
#include "app.h"
#include "binomial_law.h"
#include "exponential_law.h"
#include "normal_law.h"
#include "poisson_law.h"
#include "uniform_law.h"
#include "images/binomial_icon.h"
#include "images/exponential_icon.h"
#include "images/normal_icon.h"
#include "images/poisson_icon.h"
#include "images/uniform_icon.h"
#include "images/focused_binomial_icon.h"
#include "images/focused_exponential_icon.h"
#include "images/focused_normal_icon.h"
#include "images/focused_poisson_icon.h"
#include "images/focused_uniform_icon.h"

namespace Probability {

static const char * sMessages[] = {
  "Binomiale",
  "Uniforme",
  "Exponentielle",
  "Normale",
  "Poisson"
};

LawController::LawController(Responder * parentResponder, EvaluateContext * evaluateContext) :
  ViewController(parentResponder),
  m_selectableTableView(SelectableTableView(this, this, Metric::TopMargin, Metric::RightMargin,
    Metric::BottomMargin, Metric::LeftMargin)),
  m_law(nullptr),
  m_evaluateContext(evaluateContext),
  m_parametersController(ParametersController(nullptr))
{
  m_messages = sMessages;
}

View * LawController::view() {
  return &m_selectableTableView;
}

const char * LawController::title() const {
  if (m_law == nullptr) {
    return "Choisir le type de Loi";
  }
  return m_law->title();
}

void Probability::LawController::didBecomeFirstResponder() {
  if (m_law != nullptr) {
    delete m_law;
    m_law = nullptr;
    m_parametersController.setLaw(m_law);
  }
  StackViewController * stack = (StackViewController *)parentResponder();
  stack->updateTitle();
  if (m_selectableTableView.selectedRow() == -1) {
    m_selectableTableView.selectCellAtLocation(0, 0);
  } else {
    m_selectableTableView.selectCellAtLocation(m_selectableTableView.selectedColumn(), m_selectableTableView.selectedRow());
  }
  app()->setFirstResponder(&m_selectableTableView);
}

bool Probability::LawController::handleEvent(Ion::Events::Event event) {
  if (event == Ion::Events::OK) {
    StackViewController * stack = (StackViewController *)parentResponder();
    setLawAccordingToIndex(m_selectableTableView.selectedRow());
    stack->updateTitle();
    stack->push(&m_parametersController);
    return true;
  }
  return false;
}

int Probability::LawController::numberOfRows() {
  return k_totalNumberOfModels;
};

TableViewCell * Probability::LawController::reusableCell(int index) {
  assert(index >= 0);
  assert(index < k_totalNumberOfModels);
  return &m_cells[index];
}

int Probability::LawController::reusableCellCount() {
  return k_totalNumberOfModels;
}

void Probability::LawController::willDisplayCellForIndex(TableViewCell * cell, int index) {
  Cell * myCell = (Cell *)cell;
  myCell->setLabel(m_messages[index]);
  const Image * images[5] = {ImageStore::BinomialIcon, ImageStore::UniformIcon, ImageStore::ExponentialIcon,
    ImageStore::NormalIcon, ImageStore::PoissonIcon};
  const Image * focusedImages[5] = {ImageStore::FocusedBinomialIcon, ImageStore::FocusedUniformIcon, ImageStore::FocusedExponentialIcon,
    ImageStore::FocusedNormalIcon, ImageStore::FocusedPoissonIcon};
  myCell->setImage(images[index], focusedImages[index]);
  myCell->reloadCell();
}

KDCoordinate Probability::LawController::cellHeight() {
  return 35;
}

void Probability::LawController::setLawAccordingToIndex(int index) {
  if (m_law != nullptr) {
    delete m_law;
    m_law = nullptr;
  }
  switch (index) {
    case 0:
      m_law = new BinomialLaw(m_evaluateContext);
      break;
    case 1:
      m_law = new UniformLaw(m_evaluateContext);
      break;
    case 2:
      m_law = new ExponentialLaw(m_evaluateContext);
      break;
    case 3:
      m_law = new NormalLaw(m_evaluateContext);
      break;
    case 4:
      m_law = new PoissonLaw(m_evaluateContext);
      break;
    default:
     return;
  }
  m_parametersController.setLaw(m_law);
}

}