TreeWidget.h

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#ifndef TREEWIDGET_H
#define TREEWIDGET_H

#include <QWidget>
#include <QTreeWidgetItem>

class TreeWidget : public QWidget
{
    Q_OBJECT
public:
    explicit TreeWidget( QWidget *parent = 0 );
    virtual ~TreeWidget();

    void SetColumnCount( const int columnCount );

    int AddTreeRootItem( const QStringList itemColumnsTexts );
    void AddTreeChildItem( QTreeWidgetItem *rootItem, const QStringList itemColumnsTexts );
    void AddTreeChildItem( const int rootItemIndex, const QStringList itemColumnsTexts );

    void ResizeColumnsToContents();

    void SelectFirstRow();
    void CollapseAll();

    void Clear();

signals:
    void OnChildlessRootItemExpanded( int rootItemIndex );

public slots:

private slots:
    void OnItemCollapsed( QTreeWidgetItem *item );
    void OnItemExpanded( QTreeWidgetItem *item );
    void OnCurrentItemChanged( QTreeWidgetItem *current, QTreeWidgetItem *previous );

private:

    class DataClass;
    QSharedPointer<DataClass> d;

};

#endif // TREEWIDGET_H