CHierarchicalHeaderView.h

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// SPDX-License-Identifier: LGPL-2.1-or-later OR GPL-2.0-or-later OR GPL-3.0-or-later OR LicenseRef-ACF-Commercial
#pragma once
 
 
// Qt includes
#include <QtCore/QtGlobal>
#if QT_VERSION >= 0x050000
#include <QtWidgets/QHeaderView>
#else
#include <QtGui/QHeaderView>
#endif
 
 
namespace iwidgets
{
 
 
class CHierarchicalHeaderView: public QHeaderView
{
       Q_OBJECT
public:
       typedef QHeaderView BaseClass;
 
       enum HeaderDataModelRoles
       {
              HorizontalHeaderDataRole=Qt::UserRole,
              VerticalHeaderDataRole=Qt::UserRole+1
       };
 
       CHierarchicalHeaderView(Qt::Orientation orientation, QWidget* parent = 0);
 
       // reimplemented (QHeaderView)
       virtual void setModel(QAbstractItemModel* model) override;
 
protected:
       // reimplemented (QHeaderView)
       virtual void paintSection(
                            QPainter* painter,
                            const QRect& rect,
                            int logicalIndex) const override;
       virtual QSize sectionSizeFromContents(int logicalIndex) const override;
 
private Q_SLOTS:
       void on_sectionResized(int logicalIndex);
 
private:
       QStyleOptionHeader GetStyleOptionForCell(int logicalIndex) const;
       QModelIndex GetChildIndex(int sectionIndex) const;
       QSize GetCellSize(
                            const QModelIndex& childIndex,
                            const QHeaderView* headerViewPtr,
                            QStyleOptionHeader styleOptions) const;
       void PaintHorizontalSection(
                            QPainter *painter,
                            const QRect& sectionRect,
                            int logicalChildIndex,
                            const QHeaderView* headerViewPtr,
                            const QStyleOptionHeader& styleOptions,
                            const QModelIndex& childIndex) const;
       void PaintVerticalSection(
                            QPainter *painter,
                            const QRect& sectionRect,
                            int logicalChildIndex,
                            const QHeaderView* headerViewPtr,
                            const QStyleOptionHeader& styleOptions,
                            const QModelIndex& childIndex) const;
       QModelIndexList GetChilds(const QModelIndex& searchedIndex) const;
       QModelIndexList SearchChilds(const QModelIndex& curentIndex) const;
       QModelIndex FindRootIndex(QModelIndex index) const;
       QModelIndexList GetParentIndexes(QModelIndex index) const;
       QModelIndex FindChild(const QModelIndex& curentIndex, int sectionIndex, int& curentChildIndex) const;
       void SetForegroundBrush(QStyleOptionHeader& opt, const QModelIndex& index) const;
       void SetBackgroundBrush(QStyleOptionHeader& opt, const QModelIndex& index) const;
       int    GetCurrentCellWidth(
                            const QModelIndex& searchedIndex,
                            const QModelIndex& childIndex,
                            int sectionIndex,
                            const QHeaderView* headerViewPtr) const;
       int    GetCurrentCellLeft(
                            const QModelIndex& searchedIndex,
                            const QModelIndex& childIndex,
                            int sectionIndex,
                            int left,
                            const QHeaderView* headerViewPtr) const;
       int PaintHorizontalCell(
                            QPainter *painter,
                            const QHeaderView* headerViewPtr,
                            const QModelIndex& cellIndex,
                            const QModelIndex& childIndex,
                            int logicalChildIndex,
                            const QStyleOptionHeader& styleOptions,
                            const QRect& sectionRect,
                            int top) const;
       int PaintVerticalCell(
                            QPainter *painter,
                            const QHeaderView* headerViewPtr,
                            const QModelIndex& cellIndex,
                            const QModelIndex& childIndex,
                            int logicalChildIndex,
                            const QStyleOptionHeader& styleOptions,
                            const QRect& sectionRect,
                            int left) const;
};
 
 
} // namespace iwidgets