/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtGui module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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#ifndef QCOLUMNVIEW_P_H+
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#define QCOLUMNVIEW_P_H+
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+
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//+
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//  W A R N I N G+
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//  -------------+
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//+
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// This file is not part of the Qt API.  It exists for the convenience+
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// of other Qt classes.  This header file may change from version to+
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// version without notice, or even be removed.+
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//+
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// We mean it.+
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//+
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+
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#include "qcolumnview.h"+
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+
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#ifndef QT_NO_QCOLUMNVIEW+
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+
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#include <private/qabstractitemview_p.h>+
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+
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#include <QtCore/qabstractitemmodel.h>+
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#include <QtCore/qpropertyanimation.h>+
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#include <QtGui/qabstractitemdelegate.h>+
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#include <QtGui/qabstractitemview.h>+
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#include <QtGui/qitemdelegate.h>+
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#include <qlistview.h>+
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#include <qevent.h>+
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#include <qscrollbar.h>+
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+
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QT_BEGIN_NAMESPACE+
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+
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class QColumnViewPreviewColumn : public QAbstractItemView {+
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+
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public:+
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    QColumnViewPreviewColumn(QWidget *parent) : QAbstractItemView(parent), previewWidget(0) {+
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    }+
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+
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    void setPreviewWidget(QWidget *widget) {+
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        previewWidget = widget;+
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        setMinimumWidth(previewWidget->minimumWidth());+
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    }+
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+
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    void resizeEvent(QResizeEvent * event){+
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        if (!previewWidget)+
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            return;+
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        previewWidget->resize(+
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                qMax(previewWidget->minimumWidth(), event->size().width()),+
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                previewWidget->height());+
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        QSize p = viewport()->size();+
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        QSize v = previewWidget->size();+
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        horizontalScrollBar()->setRange(0, v.width() - p.width());+
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        horizontalScrollBar()->setPageStep(p.width());+
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        verticalScrollBar()->setRange(0, v.height() - p.height());+
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        verticalScrollBar()->setPageStep(p.height());+
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+
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        QAbstractScrollArea::resizeEvent(event);+
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    }+
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+
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    QRect visualRect(const QModelIndex &) const+
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    {+
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        return QRect();+
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    }+
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    void scrollTo(const QModelIndex &, ScrollHint)+
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    {+
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    }+
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    QModelIndex indexAt(const QPoint &) const+
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    {+
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        return QModelIndex();+
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    }+
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    QModelIndex moveCursor(CursorAction, Qt::KeyboardModifiers)+
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    {+
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        return QModelIndex();+
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    }+
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    int horizontalOffset () const {+
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        return 0;+
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    }+
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    int verticalOffset () const {+
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        return 0;+
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    }+
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    QRegion visualRegionForSelection(const QItemSelection &) const+
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    {+
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        return QRegion();+
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    }+
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    bool isIndexHidden(const QModelIndex &) const+
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    {+
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        return false;+
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    }+
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    void setSelection(const QRect &, QItemSelectionModel::SelectionFlags)+
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    {+
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    }+
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private:+
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    QWidget *previewWidget;+
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};+
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+
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class Q_AUTOTEST_EXPORT QColumnViewPrivate : public QAbstractItemViewPrivate+
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{+
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    Q_DECLARE_PUBLIC(QColumnView)+
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+
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public:+
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    QColumnViewPrivate();+
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    ~QColumnViewPrivate();+
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    void initialize();+
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+
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    QAbstractItemView *createColumn(const QModelIndex &index, bool show);+
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+
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    void updateScrollbars();+
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    void closeColumns(const QModelIndex &parent = QModelIndex(), bool build = false);+
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    void doLayout();+
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    void setPreviewWidget(QWidget *widget);+
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    void checkColumnCreation(const QModelIndex &parent);+
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+
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+
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    void _q_gripMoved(int offset);+
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    void _q_changeCurrentColumn();+
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    void _q_clicked(const QModelIndex &index);+
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    void _q_columnsInserted(const QModelIndex &parent, int start, int end);+
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+
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    QList<QAbstractItemView*> columns;+
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    QVector<int> columnSizes; // used during init and corner moving+
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    bool showResizeGrips;+
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    int offset;+
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#ifndef QT_NO_ANIMATION+
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    QPropertyAnimation currentAnimation;+
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#endif+
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    QWidget *previewWidget;+
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    QAbstractItemView *previewColumn;+
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};+
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+
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/*!+
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 * This is a delegate that will paint the triangle+
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 */+
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class QColumnViewDelegate : public QItemDelegate+
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{+
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+
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public:+
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    explicit QColumnViewDelegate(QObject *parent = 0) : QItemDelegate(parent) {}+
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    ~QColumnViewDelegate() {}+
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+
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    void paint(QPainter *painter,+
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               const QStyleOptionViewItem &option,+
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               const QModelIndex &index) const;+
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};+
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#endif // QT_NO_QCOLUMNVIEW+
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+
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+
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QT_END_NAMESPACE+
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#endif //QCOLUMNVIEW_P_H+
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+
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