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/****************************************************************************
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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** This file is part of the QtWidgets module of the Qt Toolkit.
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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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 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 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 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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****************************************************************************/
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#ifndef QABSTRACTSCROLLAREA_P_H
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#define QABSTRACTSCROLLAREA_P_H
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// This file is not part of the Qt API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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#include "private/qframe_p.h"
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#include "qabstractscrollarea.h"
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#ifndef QT_NO_SCROLLAREA
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class QAbstractScrollAreaScrollBarContainer;
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// ### Qt 6: is the export still needed? If not, unexport QFramePrivate, too.
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class Q_WIDGETS_EXPORT QAbstractScrollAreaPrivate: public QFramePrivate
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Q_DECLARE_PUBLIC(QAbstractScrollArea)
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QAbstractScrollAreaPrivate();
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~QAbstractScrollAreaPrivate();
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void replaceScrollBar(QScrollBar *scrollBar, Qt::Orientation orientation);
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QAbstractScrollAreaScrollBarContainer *scrollBarContainers[Qt::Vertical + 1];
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QScrollBar *hbar, *vbar;
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Qt::ScrollBarPolicy vbarpolicy, hbarpolicy;
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mutable QSize sizeHint;
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QAbstractScrollArea::SizeAdjustPolicy sizeAdjustPolicy;
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QWidget *cornerWidget;
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QRect cornerPaintingRect;
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#ifdef Q_DEAD_CODE_FROM_QT4_MAC
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QRect reverseCornerPaintingRect;
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int left, top, right, bottom; // viewport margin
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void layoutChildren();
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// ### Fix for 4.4, talk to Bjoern E or Girish.
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virtual void scrollBarPolicyChanged(Qt::Orientation, Qt::ScrollBarPolicy) {}
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bool canStartScrollingAt( const QPoint &startPos );
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void flashScrollBars();
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void setScrollBarTransient(QScrollBar *scrollBar, bool transient);
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void _q_showOrHideScrollBars();
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virtual QPoint contentsOffset() const;
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inline bool viewportEvent(QEvent *event)
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{ return q_func()->viewportEvent(event); }
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QScopedPointer<QObject> viewportFilter;
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#ifdef Q_DEAD_CODE_FROM_QT4_WIN
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bool singleFingerPanEnabled;
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void setSingleFingerPanEnabled(bool on = true);
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class QAbstractScrollAreaFilter : public QObject
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QAbstractScrollAreaFilter(QAbstractScrollAreaPrivate *p) : d(p)
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{ setObjectName(QLatin1String("qt_abstractscrollarea_filter")); }
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bool eventFilter(QObject *o, QEvent *e) Q_DECL_OVERRIDE
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{ return (o == d->viewport ? d->viewportEvent(e) : false); }
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QAbstractScrollAreaPrivate *d;
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class QAbstractScrollAreaScrollBarContainer : public QWidget
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enum LogicalPosition { LogicalLeft = 1, LogicalRight = 2 };
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QAbstractScrollAreaScrollBarContainer(Qt::Orientation orientation, QWidget *parent);
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void addWidget(QWidget *widget, LogicalPosition position);
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QWidgetList widgets(LogicalPosition position);
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void removeWidget(QWidget *widget);
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QScrollBar *scrollBar;
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int scrollBarLayoutIndex() const;
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Qt::Orientation orientation;
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#endif // QT_NO_SCROLLAREA
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#endif // QABSTRACTSCROLLAREA_P_H