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- /****************************************************************************
- **
- ** Copyright (C) 2016 The Qt Company Ltd.
- ** Contact: https://www.qt.io/licensing/
- **
- ** This file is part of the QtWidgets module of the Qt Toolkit.
- **
- ** $QT_BEGIN_LICENSE:LGPL$
- ** Commercial License Usage
- ** Licensees holding valid commercial Qt licenses may use this file in
- ** accordance with the commercial license agreement provided with the
- ** Software or, alternatively, in accordance with the terms contained in
- ** a written agreement between you and The Qt Company. For licensing terms
- ** and conditions see https://www.qt.io/terms-conditions. For further
- ** information use the contact form at https://www.qt.io/contact-us.
- **
- ** GNU Lesser General Public License Usage
- ** Alternatively, this file may be used under the terms of the GNU Lesser
- ** General Public License version 3 as published by the Free Software
- ** Foundation and appearing in the file LICENSE.LGPL3 included in the
- ** packaging of this file. Please review the following information to
- ** ensure the GNU Lesser General Public License version 3 requirements
- ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
- **
- ** GNU General Public License Usage
- ** Alternatively, this file may be used under the terms of the GNU
- ** General Public License version 2.0 or (at your option) the GNU General
- ** Public license version 3 or any later version approved by the KDE Free
- ** Qt Foundation. The licenses are as published by the Free Software
- ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
- ** included in the packaging of this file. Please review the following
- ** information to ensure the GNU General Public License requirements will
- ** be met: https://www.gnu.org/licenses/gpl-2.0.html and
- ** https://www.gnu.org/licenses/gpl-3.0.html.
- **
- ** $QT_END_LICENSE$
- **
- ****************************************************************************/
- #ifndef QABSTRACTSCROLLAREA_H
- #define QABSTRACTSCROLLAREA_H
- #include <QtWidgets/qframe.h>
- QT_BEGIN_NAMESPACE
- #ifndef QT_NO_SCROLLAREA
- class QMargins;
- class QScrollBar;
- class QAbstractScrollAreaPrivate;
- class Q_WIDGETS_EXPORT QAbstractScrollArea : public QFrame
- {
- Q_OBJECT
- Q_PROPERTY(Qt::ScrollBarPolicy verticalScrollBarPolicy READ verticalScrollBarPolicy WRITE setVerticalScrollBarPolicy)
- Q_PROPERTY(Qt::ScrollBarPolicy horizontalScrollBarPolicy READ horizontalScrollBarPolicy WRITE setHorizontalScrollBarPolicy)
- Q_PROPERTY(SizeAdjustPolicy sizeAdjustPolicy READ sizeAdjustPolicy WRITE setSizeAdjustPolicy)
- public:
- explicit QAbstractScrollArea(QWidget *parent = Q_NULLPTR);
- ~QAbstractScrollArea();
- enum SizeAdjustPolicy {
- AdjustIgnored,
- AdjustToContentsOnFirstShow,
- AdjustToContents
- };
- Q_ENUM(SizeAdjustPolicy)
- Qt::ScrollBarPolicy verticalScrollBarPolicy() const;
- void setVerticalScrollBarPolicy(Qt::ScrollBarPolicy);
- QScrollBar *verticalScrollBar() const;
- void setVerticalScrollBar(QScrollBar *scrollbar);
- Qt::ScrollBarPolicy horizontalScrollBarPolicy() const;
- void setHorizontalScrollBarPolicy(Qt::ScrollBarPolicy);
- QScrollBar *horizontalScrollBar() const;
- void setHorizontalScrollBar(QScrollBar *scrollbar);
- QWidget *cornerWidget() const;
- void setCornerWidget(QWidget *widget);
- void addScrollBarWidget(QWidget *widget, Qt::Alignment alignment);
- QWidgetList scrollBarWidgets(Qt::Alignment alignment);
- QWidget *viewport() const;
- void setViewport(QWidget *widget);
- QSize maximumViewportSize() const;
- QSize minimumSizeHint() const Q_DECL_OVERRIDE;
- QSize sizeHint() const Q_DECL_OVERRIDE;
- virtual void setupViewport(QWidget *viewport);
- SizeAdjustPolicy sizeAdjustPolicy() const;
- void setSizeAdjustPolicy(SizeAdjustPolicy policy);
- protected:
- QAbstractScrollArea(QAbstractScrollAreaPrivate &dd, QWidget *parent = Q_NULLPTR);
- void setViewportMargins(int left, int top, int right, int bottom);
- void setViewportMargins(const QMargins &margins);
- QMargins viewportMargins() const;
- bool eventFilter(QObject *, QEvent *) Q_DECL_OVERRIDE;
- bool event(QEvent *) Q_DECL_OVERRIDE;
- virtual bool viewportEvent(QEvent *);
- void resizeEvent(QResizeEvent *) Q_DECL_OVERRIDE;
- void paintEvent(QPaintEvent *) Q_DECL_OVERRIDE;
- void mousePressEvent(QMouseEvent *) Q_DECL_OVERRIDE;
- void mouseReleaseEvent(QMouseEvent *) Q_DECL_OVERRIDE;
- void mouseDoubleClickEvent(QMouseEvent *) Q_DECL_OVERRIDE;
- void mouseMoveEvent(QMouseEvent *) Q_DECL_OVERRIDE;
- #ifndef QT_NO_WHEELEVENT
- void wheelEvent(QWheelEvent *) Q_DECL_OVERRIDE;
- #endif
- #ifndef QT_NO_CONTEXTMENU
- void contextMenuEvent(QContextMenuEvent *) Q_DECL_OVERRIDE;
- #endif
- #ifndef QT_NO_DRAGANDDROP
- void dragEnterEvent(QDragEnterEvent *) Q_DECL_OVERRIDE;
- void dragMoveEvent(QDragMoveEvent *) Q_DECL_OVERRIDE;
- void dragLeaveEvent(QDragLeaveEvent *) Q_DECL_OVERRIDE;
- void dropEvent(QDropEvent *) Q_DECL_OVERRIDE;
- #endif
- void keyPressEvent(QKeyEvent *) Q_DECL_OVERRIDE;
- virtual void scrollContentsBy(int dx, int dy);
- virtual QSize viewportSizeHint() const;
- private:
- Q_DECLARE_PRIVATE(QAbstractScrollArea)
- Q_DISABLE_COPY(QAbstractScrollArea)
- Q_PRIVATE_SLOT(d_func(), void _q_hslide(int))
- Q_PRIVATE_SLOT(d_func(), void _q_vslide(int))
- Q_PRIVATE_SLOT(d_func(), void _q_showOrHideScrollBars())
- friend class QStyleSheetStyle;
- friend class QWidgetPrivate;
- };
- #endif // QT_NO_SCROLLAREA
- QT_END_NAMESPACE
- #endif // QABSTRACTSCROLLAREA_H
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