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| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** |
| ** This file is part of the test suite of the Qt Toolkit. |
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| ****************************************************************************/ |
| |
| #ifndef PatternistSDK_TreeItem_H |
| #define PatternistSDK_TreeItem_H |
| |
| #include <QObject> |
| |
| #include "Global.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QVariant; |
| template<typename T> class QList; |
| template<typename T> class QPointer; |
| |
| namespace QPatternistSDK |
| { |
| /** |
| * @short TreeItem is a node in a hierachial structure and is used together |
| * with TreeModel. |
| * |
| * TreeItem is abstract base class. Instances of sub-classes of TreeItem |
| * can be used with TreeModel in order to use hierarchial data in Qt's |
| * model/view framework. |
| * |
| * TreeItem is a QObject in order to be able to be used with QPointer. |
| * |
| * @author Frans Englich <frans.englich@nokia.com> |
| * @see TreeModel |
| * @ingroup PatternistSDK |
| */ |
| class TreeItem : public QObject |
| { |
| Q_OBJECT |
| public: |
| typedef QList<QPointer<TreeItem> > List; |
| |
| virtual ~TreeItem() {} |
| virtual void appendChild(TreeItem *item) = 0; |
| virtual TreeItem *child(const unsigned int row) const = 0; |
| virtual unsigned int childCount() const = 0; |
| virtual TreeItem *parent() const = 0; |
| |
| virtual TreeItem::List children() const = 0; |
| virtual int columnCount() const = 0; |
| |
| /** |
| * Determines the position among the children of |
| * this TreeItem's parent. This is done by introspecting the result |
| * of children(). |
| */ |
| int row() const; |
| |
| virtual QVariant data(const Qt::ItemDataRole role, int column) const = 0; |
| |
| static QPair<int,int> executeRange; |
| static int executions; |
| |
| Q_SIGNALS: |
| /** |
| * Emitted whenever this item changed. This is used for keeping |
| * views in synchronization with the item model which houses |
| * this item. |
| * |
| * @param item the item which changed. That is, this TreeItem. |
| */ |
| void changed(TreeItem *item); |
| }; |
| } |
| |
| QT_END_NAMESPACE |
| |
| #endif |
| // vim: et:ts=4:sw=4:sts=4 |