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Diffstat (limited to 'src/widgets/widgets/qabstractscrollarea_p.h')
-rw-r--r-- | src/widgets/widgets/qabstractscrollarea_p.h | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/src/widgets/widgets/qabstractscrollarea_p.h b/src/widgets/widgets/qabstractscrollarea_p.h new file mode 100644 index 0000000000..5511d08f4e --- /dev/null +++ b/src/widgets/widgets/qabstractscrollarea_p.h @@ -0,0 +1,146 @@ +/**************************************************************************** +** +** 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 QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** 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. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QABSTRACTSCROLLAREA_P_H +#define QABSTRACTSCROLLAREA_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include "private/qframe_p.h" +#include "qabstractscrollarea.h" + +QT_BEGIN_NAMESPACE + +#ifndef QT_NO_SCROLLAREA + +class QScrollBar; +class QAbstractScrollAreaScrollBarContainer; +class Q_WIDGETS_EXPORT QAbstractScrollAreaPrivate: public QFramePrivate +{ + Q_DECLARE_PUBLIC(QAbstractScrollArea) + +public: + QAbstractScrollAreaPrivate(); + + void replaceScrollBar(QScrollBar *scrollBar, Qt::Orientation orientation); + + QAbstractScrollAreaScrollBarContainer *scrollBarContainers[Qt::Vertical + 1]; + QScrollBar *hbar, *vbar; + Qt::ScrollBarPolicy vbarpolicy, hbarpolicy; + + QWidget *viewport; + QWidget *cornerWidget; + QRect cornerPaintingRect; +#ifdef Q_WS_MAC + QRect reverseCornerPaintingRect; +#endif + int left, top, right, bottom; // viewport margin + + int xoffset, yoffset; + QPoint overshoot; + + void init(); + void layoutChildren(); + // ### Fix for 4.4, talk to Bjoern E or Girish. + virtual void scrollBarPolicyChanged(Qt::Orientation, Qt::ScrollBarPolicy) {} + bool canStartScrollingAt( const QPoint &startPos ); + + void _q_hslide(int); + void _q_vslide(int); + void _q_showOrHideScrollBars(); + + virtual QPoint contentsOffset() const; + + inline bool viewportEvent(QEvent *event) + { return q_func()->viewportEvent(event); } + QScopedPointer<QObject> viewportFilter; + +#ifdef Q_WS_WIN + bool singleFingerPanEnabled; + void setSingleFingerPanEnabled(bool on = true); +#endif +}; + +class QAbstractScrollAreaFilter : public QObject +{ + Q_OBJECT +public: + QAbstractScrollAreaFilter(QAbstractScrollAreaPrivate *p) : d(p) + { setObjectName(QLatin1String("qt_abstractscrollarea_filter")); } + bool eventFilter(QObject *o, QEvent *e) + { return (o == d->viewport ? d->viewportEvent(e) : false); } +private: + QAbstractScrollAreaPrivate *d; +}; + +class QBoxLayout; +class QAbstractScrollAreaScrollBarContainer : public QWidget +{ +public: + enum LogicalPosition { LogicalLeft = 1, LogicalRight = 2 }; + + QAbstractScrollAreaScrollBarContainer(Qt::Orientation orientation, QWidget *parent); + void addWidget(QWidget *widget, LogicalPosition position); + QWidgetList widgets(LogicalPosition position); + void removeWidget(QWidget *widget); + + QScrollBar *scrollBar; + QBoxLayout *layout; +private: + int scrollBarLayoutIndex() const; + + Qt::Orientation orientation; +}; + +#endif // QT_NO_SCROLLAREA + +QT_END_NAMESPACE + +#endif // QABSTRACTSCROLLAREA_P_H |