splitplotview.h

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

#include "ocurvesconfig.h"

#include <QList>
#include <QWidget>

class Curves;
class PlotView;
class QSettings;
class QSplitter;

class SplitPlotView : public QWidget
{
  Q_OBJECT
public:
  SplitPlotView(Curves *curves, QWidget *parent = nullptr);

  void loadSettings(QSettings &settings);

  void saveSettings(QSettings &settings);

  inline PlotView *activeView() const { return _activeView; }

  bool hasSplits() const;

  void replot();

  void collate(QVector<PlotView *> &views);

  void collateActive(QStringList &sourceNames, QStringList &curveNames, const PlotView *exclude = nullptr);

signals:

  void viewAdded(PlotView *view);
  //void viewRemoved(PlotView *view);

  void activeViewChanged(PlotView *newView, PlotView *oldView);

  void syncPan(int x, int y);

  void multiToolModeSet();

  void panToolModeSet();

  void zoomToolModeSet();

  void zoomXSet();

  void zoomYSet();

  void zoomXYSet();

public slots:
  void splitVertical();

  void splitHorizontal();

  void splitRemove();

  void splitRemoveAll();

  void setMultiTool();

  void setPanTool();

  void setZoomTool();

  void setZoomX();

  void setZoomY();

  void setZoomXY();

private slots:
  void viewFocusGained();

  void viewSyncChanged(bool sync);

  // Events only for internal propagation to child views.

  void viewToolModeChanged(int mode);

  void viewZoomModeChanged(int mode);

private:
  void setActiveView(PlotView *view);

  static PlotView *findFirstView(QWidget *widget);

  static QWidget *relevantChild(const QSplitter *split, int index);

  static inline QWidget *left(const QSplitter *split) { return relevantChild(split, 0); }

  static inline QWidget *right(const QSplitter *split) { return relevantChild(split, 1); }

  void initialiseView(PlotView *view, const PlotView *referenceView = nullptr);

  void initialiseSplit(QSplitter *split);

  void initialiseSplit(QSplitter *split, PlotView *view);

  void saveBranch(QSettings &settings, QWidget *branch);

  QWidget *loadTree(QSettings &settings, QWidget *parent, PlotView *&activeView);

  QWidget *_root;
  PlotView *_activeView;  
  Curves *_curves;        
  QList<PlotView *> _synchedViews;  
  bool _suppressEvents;   
};

#endif // SPLITPLOTVIEW_H_