expressionsview.h

//
// author Kazys Stepanas
//
// Copyright (c) CSIRO 2013
//
#ifndef __EXPRESSIONVSIEW_H_
#define __EXPRESSIONVSIEW_H_

#include "ocurvesconfig.h"

#include <QWidget>

#include <QList>
#include <QVector>

class Expressions;
class FunctionDefinition;
class PlotExpression;
class QListWidgetItem;
class QTableWidget;

namespace Ui
{
  class ExpressionsView;
}

class ExpressionsView : public QWidget
{
  Q_OBJECT

public:
  explicit ExpressionsView(Expressions *expressions = nullptr, QWidget *parent = nullptr);

  ~ExpressionsView();

  void setExpressions(Expressions *expressions);

  const Expressions *expressions() const;

protected:
  PlotExpression *parseExpression(const QString &text, QStringList &errors) const;

  PlotExpression *addExpression();

protected slots:
  void addExpr();

  void removeExpr();

  void updateExpr();

  void currentItemChanged(QListWidgetItem *current, QListWidgetItem *previous);

  void editingDone();

  void expressionAdded(PlotExpression *expression);

  void expressionRemoved(const PlotExpression *expression);

protected:
  void showExpressions();

  QListWidgetItem *createItem(PlotExpression *expression);

  bool removeExpression(QListWidgetItem *item);

private:
  QTableWidget *createFunctionsTable(const QVector<const FunctionDefinition *> &functions, QWidget *parent = nullptr);

  Ui::ExpressionsView *_ui;    
  Expressions *_expressions;  
  bool _suppressEvents;       
};


inline const Expressions *ExpressionsView::expressions() const
{
  return _expressions;
}

#endif // __EXPRESSIONSVIEW_H_