qtreewidget.h

奇趣公司比较新的qt/emd版本

    QTreeWidgetItem *par;
    QList<QTreeWidgetItem*> children;
    Qt::ItemFlags itemFlags;
};

inline void QTreeWidgetItem::setText(int column, const QString &atext)
{ setData(column, Qt::DisplayRole, atext); }

inline void QTreeWidgetItem::setIcon(int column, const QIcon &aicon)
{ setData(column, Qt::DecorationRole, aicon); }

#ifndef QT_NO_STATUSTIP
inline void QTreeWidgetItem::setStatusTip(int column, const QString &astatusTip)
{ setData(column, Qt::StatusTipRole, astatusTip); }
#endif

#ifndef QT_NO_TOOLTIP
inline void QTreeWidgetItem::setToolTip(int column, const QString &atoolTip)
{ setData(column, Qt::ToolTipRole, atoolTip); }
#endif

#ifndef QT_NO_WHATSTHIS
inline void QTreeWidgetItem::setWhatsThis(int column, const QString &awhatsThis)
{ setData(column, Qt::WhatsThisRole, awhatsThis); }
#endif

inline void QTreeWidgetItem::setFont(int column, const QFont &afont)
{ setData(column, Qt::FontRole, afont); }

inline int QTreeWidgetItem::indexOfChild(QTreeWidgetItem *achild) const
{ (void)const_cast<QTreeWidgetItem*>(this)->takeChild(-1); return children.indexOf(achild); }

#ifndef QT_NO_DATASTREAM
Q_GUI_EXPORT QDataStream &operator<<(QDataStream &out, const QTreeWidgetItem &item);
Q_GUI_EXPORT QDataStream &operator>>(QDataStream &in, QTreeWidgetItem &item);
#endif

class QTreeWidgetPrivate;

class Q_GUI_EXPORT QTreeWidget : public QTreeView
{
    Q_OBJECT
    Q_PROPERTY(int columnCount READ columnCount WRITE setColumnCount)
    Q_PROPERTY(int topLevelItemCount READ topLevelItemCount)

    friend class QTreeModel;
public:
    explicit QTreeWidget(QWidget *parent = 0);
    ~QTreeWidget();

    int columnCount() const;
    void setColumnCount(int columns);

    QTreeWidgetItem *invisibleRootItem() const;
    QTreeWidgetItem *topLevelItem(int index) const;
    int topLevelItemCount() const;
    void insertTopLevelItem(int index, QTreeWidgetItem *item);
    void addTopLevelItem(QTreeWidgetItem *item);
    QTreeWidgetItem *takeTopLevelItem(int index);
    int indexOfTopLevelItem(QTreeWidgetItem *item); // ### Qt 5: remove me
    int indexOfTopLevelItem(QTreeWidgetItem *item) const;

    void insertTopLevelItems(int index, const QList<QTreeWidgetItem*> &items);
    void addTopLevelItems(const QList<QTreeWidgetItem*> &items);

    QTreeWidgetItem *headerItem() const;
    void setHeaderItem(QTreeWidgetItem *item);
    void setHeaderLabels(const QStringList &labels);
    inline void setHeaderLabel(const QString &label);

    QTreeWidgetItem *currentItem() const;
    int currentColumn() const;
    void setCurrentItem(QTreeWidgetItem *item);
    void setCurrentItem(QTreeWidgetItem *item, int column);

    QTreeWidgetItem *itemAt(const QPoint &p) const;
    inline QTreeWidgetItem *itemAt(int x, int y) const;
    QRect visualItemRect(const QTreeWidgetItem *item) const;

    int sortColumn() const;
    void sortItems(int column, Qt::SortOrder order);
    void setSortingEnabled(bool enable);
    bool isSortingEnabled() const;

    void editItem(QTreeWidgetItem *item, int column = 0);
    void openPersistentEditor(QTreeWidgetItem *item, int column = 0);
    void closePersistentEditor(QTreeWidgetItem *item, int column = 0);

    QWidget *itemWidget(QTreeWidgetItem *item, int column) const;
    void setItemWidget(QTreeWidgetItem *item, int column, QWidget *widget);
    inline void removeItemWidget(QTreeWidgetItem *item, int column);

    bool isItemSelected(const QTreeWidgetItem *item) const;
    void setItemSelected(const QTreeWidgetItem *item, bool select);
    QList<QTreeWidgetItem*> selectedItems() const;
    QList<QTreeWidgetItem*> findItems(const QString &text, Qt::MatchFlags flags,
                                      int column = 0) const;

    bool isItemHidden(const QTreeWidgetItem *item) const;
    void setItemHidden(const QTreeWidgetItem *item, bool hide);

    bool isItemExpanded(const QTreeWidgetItem *item) const;
    void setItemExpanded(const QTreeWidgetItem *item, bool expand);

    bool isFirstItemColumnSpanned(const QTreeWidgetItem *item) const;
    void setFirstItemColumnSpanned(const QTreeWidgetItem *item, bool span);

    QTreeWidgetItem *itemAbove(const QTreeWidgetItem *item) const;
    QTreeWidgetItem *itemBelow(const QTreeWidgetItem *item) const;

public Q_SLOTS:
    void scrollToItem(const QTreeWidgetItem *item,
                      QAbstractItemView::ScrollHint hint = EnsureVisible);
    void expandItem(const QTreeWidgetItem *item);
    void collapseItem(const QTreeWidgetItem *item);
    void clear();

Q_SIGNALS:
    void itemPressed(QTreeWidgetItem *item, int column);
    void itemClicked(QTreeWidgetItem *item, int column);
    void itemDoubleClicked(QTreeWidgetItem *item, int column);
    void itemActivated(QTreeWidgetItem *item, int column);
    void itemEntered(QTreeWidgetItem *item, int column);
    void itemChanged(QTreeWidgetItem *item, int column);
    void itemExpanded(QTreeWidgetItem *item);
    void itemCollapsed(QTreeWidgetItem *item);
    void currentItemChanged(QTreeWidgetItem *current, QTreeWidgetItem *previous);
    void itemSelectionChanged();

protected:
    bool event(QEvent *e);
    virtual QStringList mimeTypes() const;
    virtual QMimeData *mimeData(const QList<QTreeWidgetItem*> items) const;
    virtual bool dropMimeData(QTreeWidgetItem *parent, int index,
                              const QMimeData *data, Qt::DropAction action);
    virtual Qt::DropActions supportedDropActions() const;
    QList<QTreeWidgetItem*> items(const QMimeData *data) const;

    QModelIndex indexFromItem(QTreeWidgetItem *item, int column = 0) const;
    QTreeWidgetItem *itemFromIndex(const QModelIndex &index) const;
    void dropEvent(QDropEvent *event);

private:
    void setModel(QAbstractItemModel *model);

    Q_DECLARE_PRIVATE(QTreeWidget)
    Q_DISABLE_COPY(QTreeWidget)

    Q_PRIVATE_SLOT(d_func(), void _q_emitItemPressed(const QModelIndex &index))
    Q_PRIVATE_SLOT(d_func(), void _q_emitItemClicked(const QModelIndex &index))
    Q_PRIVATE_SLOT(d_func(), void _q_emitItemDoubleClicked(const QModelIndex &index))
    Q_PRIVATE_SLOT(d_func(), void _q_emitItemActivated(const QModelIndex &index))
    Q_PRIVATE_SLOT(d_func(), void _q_emitItemEntered(const QModelIndex &index))
    Q_PRIVATE_SLOT(d_func(), void _q_emitItemChanged(const QModelIndex &index))
    Q_PRIVATE_SLOT(d_func(), void _q_emitItemExpanded(const QModelIndex &index))
    Q_PRIVATE_SLOT(d_func(), void _q_emitItemCollapsed(const QModelIndex &index))
    Q_PRIVATE_SLOT(d_func(), void _q_emitCurrentItemChanged(const QModelIndex &previous, const QModelIndex &current))
    Q_PRIVATE_SLOT(d_func(), void _q_sort())
    Q_PRIVATE_SLOT(d_func(), void _q_dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight))
    Q_PRIVATE_SLOT(d_func(), void _q_itemsSorted())
};

inline void QTreeWidget::removeItemWidget(QTreeWidgetItem *item, int column)
{ setItemWidget(item, column, 0); }

inline QTreeWidgetItem *QTreeWidget::itemAt(int ax, int ay) const
{ return itemAt(QPoint(ax, ay)); }

inline void QTreeWidget::setHeaderLabel(const QString &alabel)
{ setHeaderLabels(QStringList(alabel)); }

inline void QTreeWidgetItem::setSelected(bool aselect)
{ if (view) view->setItemSelected(this, aselect); }

inline bool QTreeWidgetItem::isSelected() const
{ return (view ? view->isItemSelected(this) : false); }

inline void QTreeWidgetItem::setHidden(bool ahide)
{ if (view) view->setItemHidden(this, ahide); }

inline bool QTreeWidgetItem::isHidden() const
{ return (view ? view->isItemHidden(this) : false); }

inline void QTreeWidgetItem::setExpanded(bool aexpand)
{ if (view) view->setItemExpanded(this, aexpand); }

inline bool QTreeWidgetItem::isExpanded() const
{ return (view ? view->isItemExpanded(this) : false); }

inline void QTreeWidgetItem::setFirstColumnSpanned(bool aspan)
{ if (view) view->setFirstItemColumnSpanned(this, aspan); }

inline bool QTreeWidgetItem::isFirstColumnSpanned() const
{ return (view ? view->isFirstItemColumnSpanned(this) : false); }

inline void QTreeWidgetItem::setDisabled(bool disabled)
{ setFlags(disabled ? (flags() & ~Qt::ItemIsEnabled) : flags() | Qt::ItemIsEnabled); }

inline bool QTreeWidgetItem::isDisabled() const
{ return !(flags() & Qt::ItemIsEnabled); }

#endif // QT_NO_TREEWIDGET

QT_END_HEADER

#endif // QTREEWIDGET_H