pqTreeView.h

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

#include "pqWidgetsModule.h"
#include <QTreeView>

class PQWIDGETS_EXPORT pqTreeView : public QTreeView
{
  Q_OBJECT

  Q_PROPERTY(int maximumRowCountBeforeScrolling READ maximumRowCountBeforeScrolling WRITE
      setMaximumRowCountBeforeScrolling)

  typedef QTreeView Superclass;

public:
  pqTreeView(QWidget* parent = nullptr, bool use_pqHeaderView = false);
  ~pqTreeView() override = default;

  bool eventFilter(QObject* object, QEvent* e) override;

  void wheelEvent(QWheelEvent* event) override;

  void setModel(QAbstractItemModel* model) override;
  void setRootIndex(const QModelIndex& index) override;

  QSize sizeHint() const override;
  QSize minimumSizeHint() const override;

  void setMaximumRowCountBeforeScrolling(int val) { this->MaximumRowCountBeforeScrolling = val; }
  int maximumRowCountBeforeScrolling() const { return this->MaximumRowCountBeforeScrolling; }

  void setupCustomHeader(bool use_pqHeaderView = false);

protected:

  QItemSelectionModel::SelectionFlags selectionCommand(
    const QModelIndex& index, const QEvent* event = nullptr) const override;
  bool edit(const QModelIndex& index, EditTrigger trigger, QEvent* event) override;

private Q_SLOTS:
  void invalidateLayout();

private: // NOLINT(readability-redundant-access-specifiers)
  int ScrollPadding;
  int MaximumRowCountBeforeScrolling;
};

#endif