plotviewtoolbar.h

//
// author Kazys Stepanas
//
// Copyright (c) CSIRO 2015
//
#ifndef PLOTVIEWTOOLBAR_H_
#define PLOTVIEWTOOLBAR_H_

#include "ocurvesui.h"

#include <QToolBar>

class PlotViewToolbar : public QToolBar
{
  Q_OBJECT
public:
  enum GroupId
  {
    GroupNone = -1,
    GroupZoom = 0,  
    GroupTool,      
    GroupCount
  };

  enum ActionId
  {
    ActionInvalid = -1,
    ActionZoomXY, 
    ActionZoomX,  
    ActionZoomY,  

    ActionToolMulti,  
    ActionToolZoom,   
    ActionToolPan,    

    ActionCount
  };

  explicit PlotViewToolbar(QWidget *parent = 0);
  ~PlotViewToolbar();

  QAction *action(ActionId actionId) const;

  ActionId actionId(const QAction *action) const;

public slots:
  bool setActive(ActionId actionId);

signals:
  void active(ActionId actionId);

private slots:
  void actionChecked(bool checked);

private:
  struct CheckGroup
  {
    enum { Max = 4 };
    QAction *actions[Max];  

    inline CheckGroup()
    {
      actions[0] = nullptr;
    }
  };

  void initialiseActions();

  QAction *initialiseAction(QAction *action, ActionId actionId, GroupId groupId = GroupNone);

  CheckGroup *checkGroupFor(QAction *action);

  void ensureChecked(CheckGroup &group, ActionId defaultActionId);

  CheckGroup _checkGroups[GroupCount];  
};

#endif // PLOTVIEWTOOLBAR_H_