pqHeaderView.h

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/*=========================================================================

   Program: ParaView
   Module:  pqHeaderView.h

   Copyright (c) 2005,2006 Sandia Corporation, Kitware Inc.
   All rights reserved.

   ParaView is a free software; you can redistribute it and/or modify it
   under the terms of the ParaView license version 1.2.

   See License_v1.2.txt for the full ParaView license.
   A copy of this license can be obtained by contacting
   Kitware Inc.
   28 Corporate Drive
   Clifton Park, NY 12065
   USA

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

========================================================================*/
#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);

  void 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