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# qabstractscrollarea.h

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    00001 /****************************************************************************
    00002 **
    00003 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
    00004 ** All rights reserved.
    00005 ** Contact: Nokia Corporation (qt-info@nokia.com)
    00006 **
    00007 ** This file is part of the QtGui module of the Qt Toolkit.
    00008 **
    00009 ** $QT_BEGIN_LICENSE:LGPL$
    00010 ** Commercial Usage
    00011 ** Licensees holding valid Qt Commercial licenses may use this file in
    00012 ** accordance with the Qt Commercial License Agreement provided with the
    00013 ** Software or, alternatively, in accordance with the terms contained in
    00014 ** a written agreement between you and Nokia.
    00015 **
    00016 ** GNU Lesser General Public License Usage
    00017 ** Alternatively, this file may be used under the terms of the GNU Lesser
    00018 ** General Public License version 2.1 as published by the Free Software
    00019 ** Foundation and appearing in the file LICENSE.LGPL included in the
    00020 ** packaging of this file.  Please review the following information to
    00021 ** ensure the GNU Lesser General Public License version 2.1 requirements
    00022 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    00023 **
    00024 ** In addition, as a special exception, Nokia gives you certain additional
    00025 ** rights.  These rights are described in the Nokia Qt LGPL Exception
    00026 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this module.
    00027 **
    00028 ** GNU General Public License Usage
    00029 ** Alternatively, this file may be used under the terms of the GNU
    00030 ** General Public License version 3.0 as published by the Free Software
    00031 ** Foundation and appearing in the file LICENSE.GPL included in the
    00032 ** packaging of this file.  Please review the following information to
    00033 ** ensure the GNU General Public License version 3.0 requirements will be
    00034 ** met: http://www.gnu.org/copyleft/gpl.html.
    00035 **
    00036 ** If you have questions regarding the use of this file, please contact
    00037 ** Nokia at qt-info@nokia.com.
    00038 ** $QT_END_LICENSE$
    00039 **
    00040 ****************************************************************************/
    00041
    00042 #ifndef QABSTRACTSCROLLAREA_H
    00043 #define QABSTRACTSCROLLAREA_H
    00044
    00045 #include <QtGui/qframe.h>
    00046
    00047 QT_BEGIN_HEADER
    00048
    00049 QT_BEGIN_NAMESPACE
    00050
    00051 QT_MODULE(Gui)
    00052
    00053 #ifndef QT_NO_SCROLLAREA
    00054
    00055 class QMargins;
    00056 class QScrollBar;
    00057 class QAbstractScrollAreaPrivate;
    00058
    00059 class Q_GUI_EXPORT QAbstractScrollArea : public QFrame
    00060 {
    00061     Q_OBJECT
    00062     Q_PROPERTY(Qt::ScrollBarPolicy verticalScrollBarPolicy READ verticalScrollBarPolicy WRITE setVerticalScrollBarPolicy)
    00063     Q_PROPERTY(Qt::ScrollBarPolicy horizontalScrollBarPolicy READ horizontalScrollBarPolicy WRITE setHorizontalScrollBarPolicy)
    00064
    00065 public:
    00066     explicit QAbstractScrollArea(QWidget* parent=0);
    00067     ~QAbstractScrollArea();
    00068
    00069     Qt::ScrollBarPolicy verticalScrollBarPolicy() const;
    00070     void setVerticalScrollBarPolicy(Qt::ScrollBarPolicy);
    00071     QScrollBar *verticalScrollBar() const;
    00072     void setVerticalScrollBar(QScrollBar *scrollbar);
    00073
    00074     Qt::ScrollBarPolicy horizontalScrollBarPolicy() const;
    00075     void setHorizontalScrollBarPolicy(Qt::ScrollBarPolicy);
    00076     QScrollBar *horizontalScrollBar() const;
    00077     void setHorizontalScrollBar(QScrollBar *scrollbar);
    00078
    00079     QWidget *cornerWidget() const;
    00080     void setCornerWidget(QWidget *widget);
    00081
    00082     void addScrollBarWidget(QWidget *widget, Qt::Alignment alignment);
    00083     QWidgetList scrollBarWidgets(Qt::Alignment alignment);
    00084
    00085     QWidget *viewport() const;
    00086     void setViewport(QWidget *widget);
    00087     QSize maximumViewportSize() const;
    00088
    00089     QSize minimumSizeHint() const;
    00090
    00091     QSize sizeHint() const;
    00092
    00093 protected Q_SLOTS:
    00094     void setupViewport(QWidget *viewport);
    00095
    00096 protected:
    00097     QAbstractScrollArea(QAbstractScrollAreaPrivate &dd, QWidget *parent = 0);
    00098     void setViewportMargins(int left, int top, int right, int bottom);
    00099     void setViewportMargins(const QMargins &margins);
    00100
    00101     bool event(QEvent *);
    00102     virtual bool viewportEvent(QEvent *);
    00103
    00104     void resizeEvent(QResizeEvent *);
    00105     void paintEvent(QPaintEvent *);
    00106     void mousePressEvent(QMouseEvent *);
    00107     void mouseReleaseEvent(QMouseEvent *);
    00108     void mouseDoubleClickEvent(QMouseEvent *);
    00109     void mouseMoveEvent(QMouseEvent *);
    00110 #ifndef QT_NO_WHEELEVENT
    00111     void wheelEvent(QWheelEvent *);
    00112 #endif
    00113 #ifndef QT_NO_CONTEXTMENU
    00114     void contextMenuEvent(QContextMenuEvent *);
    00115 #endif
    00116 #ifndef QT_NO_DRAGANDDROP
    00117     void dragEnterEvent(QDragEnterEvent *);
    00118     void dragMoveEvent(QDragMoveEvent *);
    00119     void dragLeaveEvent(QDragLeaveEvent *);
    00120     void dropEvent(QDropEvent *);
    00121 #endif
    00122
    00123     void keyPressEvent(QKeyEvent *);
    00124
    00125     virtual void scrollContentsBy(int dx, int dy);
    00126
    00127 private:
    00128     Q_DECLARE_PRIVATE(QAbstractScrollArea)
    00129     Q_DISABLE_COPY(QAbstractScrollArea)
    00130     Q_PRIVATE_SLOT(d_func(), void _q_hslide(int))
    00131     Q_PRIVATE_SLOT(d_func(), void _q_vslide(int))
    00132     Q_PRIVATE_SLOT(d_func(), void _q_showOrHideScrollBars())
    00133
    00134     friend class QStyleSheetStyle;
    00135     friend class QWidgetPrivate;
    00136 };
    00137
    00138 #endif // QT_NO_SCROLLAREA
    00139
    00140 QT_END_NAMESPACE
    00141
    00142 QT_END_HEADER
    00143
    00144 #endif // QABSTRACTSCROLLAREA_H