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Diffstat (limited to 'demos/interview/model.h')
-rw-r--r-- | demos/interview/model.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/demos/interview/model.h b/demos/interview/model.h new file mode 100644 index 0000000000..74ebff77b6 --- /dev/null +++ b/demos/interview/model.h @@ -0,0 +1,90 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the demonstration applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef MODEL_H +#define MODEL_H + +#include <QAbstractItemModel> +#include <QFileIconProvider> +#include <QIcon> +#include <QVector> + +class Model : public QAbstractItemModel +{ + Q_OBJECT + +public: + Model(int rows, int columns, QObject *parent = 0); + ~Model(); + + QModelIndex index(int row, int column, const QModelIndex &parent) const; + QModelIndex parent(const QModelIndex &child) const; + + int rowCount(const QModelIndex &parent) const; + int columnCount(const QModelIndex &parent) const; + + QVariant data(const QModelIndex &index, int role) const; + QVariant headerData(int section, Qt::Orientation orientation, int role) const; + + bool hasChildren(const QModelIndex &parent) const; + Qt::ItemFlags flags(const QModelIndex &index) const; + +private: + + struct Node + { + Node(Node *parent = 0) : parent(parent), children(0) {} + ~Node() { delete children; } + Node *parent; + QVector<Node> *children; + }; + + Node *node(int row, Node *parent) const; + Node *parent(Node *child) const; + int row(Node *node) const; + + QIcon services; + int rc, cc; + QVector<Node> *tree; + QFileIconProvider iconProvider; +}; + +#endif |