pqHeaderView.h

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// SPDX-FileCopyrightText: Copyright (c) Kitware Inc.
// SPDX-FileCopyrightText: Copyright (c) Sandia Corporation
// SPDX-License-Identifier: BSD-3-Clause
#ifndef pqHeaderView_h
#define pqHeaderView_h

#include "pqWidgetsModule.h" // for exports
#include <QHeaderView>
#include <QPoint> // for QPoint
#include <QRect>  // for QRect

#include <utility> // for std::pair
#include <vector>  // for std::vector

class PQWIDGETS_EXPORT pqHeaderView : public QHeaderView
{
  Q_OBJECT
  typedef QHeaderView Superclass;
  Q_PROPERTY(bool showCustomIndicator READ isCustomIndicatorShown WRITE setCustomIndicatorShown);

public:
  pqHeaderView(Qt::Orientation orientation, QWidget* parent = nullptr);
  ~pqHeaderView() override;


  void setToggleCheckStateOnSectionClick(bool val) { this->ToggleCheckStateOnSectionClick = val; }
  bool toggleCheckStateOnSectionClick() const { return this->ToggleCheckStateOnSectionClick; }


  bool isCustomIndicatorShown() const { return this->CustomIndicatorShown; }
  void setCustomIndicatorShown(bool val);


  void addCustomIndicatorIcon(const QIcon& icon, const QString& role);
  void removeCustomIndicatorIcon(const QString& role);
  QIcon customIndicatorIcon(const QString& role) const;

  QRect lastCheckRect() const { return this->CheckRect; }

Q_SIGNALS:
  void customIndicatorClicked(int section, const QPoint& pt, const QString& role);

protected:
  void paintSection(QPainter* painter, const QRect& rect, int logicalIndex) const override;
  void mousePressEvent(QMouseEvent* event) override;
  void mouseReleaseEvent(QMouseEvent* event) override;

private:
  Q_DISABLE_COPY(pqHeaderView);

  // return true if we handled the event.
  bool mouseClickEvent(QMouseEvent* event);

  bool ToggleCheckStateOnSectionClick;
  QPoint PressPosition;
  mutable QRect CheckRect;

  bool CustomIndicatorShown;

  // we keep as a vector since order of addition of icons is important.
  std::vector<std::pair<QIcon, QString>> CustomIndicatorIcons;
  mutable std::vector<std::pair<QRect, QString>> CustomIndicatorRects;
};

#endif