1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the QtGui module of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    27 **

    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

    30 **

    31 **

    32 **

    33 **

    34 **

    35 **

    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #ifndef QABSTRACTSCROLLAREA_H

    43 #define QABSTRACTSCROLLAREA_H

    44 

    45 #include <QtGui/qframe.h>

    46 

    47 QT_BEGIN_HEADER

    48 

    49 QT_BEGIN_NAMESPACE

    50 

    51 QT_MODULE(Gui)

    52 

    53 #ifndef QT_NO_SCROLLAREA

    54 

    55 class QMargins;

    56 class QScrollBar;

    57 class QAbstractScrollAreaPrivate;

    58 

    59 class Q_GUI_EXPORT QAbstractScrollArea : public QFrame

    60 {

    61     Q_OBJECT

    62     Q_PROPERTY(Qt::ScrollBarPolicy verticalScrollBarPolicy READ verticalScrollBarPolicy WRITE setVerticalScrollBarPolicy)

    63     Q_PROPERTY(Qt::ScrollBarPolicy horizontalScrollBarPolicy READ horizontalScrollBarPolicy WRITE setHorizontalScrollBarPolicy)

    64 

    65 public:

    66     explicit QAbstractScrollArea(QWidget* parent=0);

    67     ~QAbstractScrollArea();

    68 

    69     Qt::ScrollBarPolicy verticalScrollBarPolicy() const;

    70     void setVerticalScrollBarPolicy(Qt::ScrollBarPolicy);

    71     QScrollBar *verticalScrollBar() const;

    72     void setVerticalScrollBar(QScrollBar *scrollbar);

    73 

    74     Qt::ScrollBarPolicy horizontalScrollBarPolicy() const;

    75     void setHorizontalScrollBarPolicy(Qt::ScrollBarPolicy);

    76     QScrollBar *horizontalScrollBar() const;

    77     void setHorizontalScrollBar(QScrollBar *scrollbar);

    78 

    79     QWidget *cornerWidget() const;

    80     void setCornerWidget(QWidget *widget);

    81 

    82     void addScrollBarWidget(QWidget *widget, Qt::Alignment alignment);

    83     QWidgetList scrollBarWidgets(Qt::Alignment alignment);

    84 

    85     QWidget *viewport() const;

    86     void setViewport(QWidget *widget);

    87     QSize maximumViewportSize() const;

    88 

    89     QSize minimumSizeHint() const;

    90 

    91     QSize sizeHint() const;

    92 

    93 protected Q_SLOTS:

    94     void setupViewport(QWidget *viewport);

    95 

    96 protected:

    97     QAbstractScrollArea(QAbstractScrollAreaPrivate &dd, QWidget *parent = 0);

    98     void setViewportMargins(int left, int top, int right, int bottom);

    99     void setViewportMargins(const QMargins &margins);

   100 

   101     bool event(QEvent *);

   102     virtual bool viewportEvent(QEvent *);

   103 

   104     void resizeEvent(QResizeEvent *);

   105     void paintEvent(QPaintEvent *);

   106     void mousePressEvent(QMouseEvent *);

   107     void mouseReleaseEvent(QMouseEvent *);

   108     void mouseDoubleClickEvent(QMouseEvent *);

   109     void mouseMoveEvent(QMouseEvent *);

   110 #ifndef QT_NO_WHEELEVENT

   111     void wheelEvent(QWheelEvent *);

   112 #endif

   113 #ifndef QT_NO_CONTEXTMENU

   114     void contextMenuEvent(QContextMenuEvent *);

   115 #endif

   116 #ifndef QT_NO_DRAGANDDROP

   117     void dragEnterEvent(QDragEnterEvent *);

   118     void dragMoveEvent(QDragMoveEvent *);

   119     void dragLeaveEvent(QDragLeaveEvent *);

   120     void dropEvent(QDropEvent *);

   121 #endif

   122 

   123     void keyPressEvent(QKeyEvent *);

   124 

   125     virtual void scrollContentsBy(int dx, int dy);

   126 

   127 private:

   128     Q_DECLARE_PRIVATE(QAbstractScrollArea)

   129     Q_DISABLE_COPY(QAbstractScrollArea)

   130     Q_PRIVATE_SLOT(d_func(), void _q_hslide(int))

   131     Q_PRIVATE_SLOT(d_func(), void _q_vslide(int))

   132     Q_PRIVATE_SLOT(d_func(), void _q_showOrHideScrollBars())

   133 

   134     friend class QStyleSheetStyle;

   135     friend class QWidgetPrivate;

   136 };

   137 

   138 #endif // QT_NO_SCROLLAREA

   139 

   140 QT_END_NAMESPACE

   141 

   142 QT_END_HEADER

   143 

   144 #endif // QABSTRACTSCROLLAREA_H