src/gui/widgets/qsplitter.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 19 Feb 2010 23:40:16 +0200
branchRCL_3
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Revision: 201003 Kit: 201007
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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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 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL 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 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights.  These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QSPLITTER_H
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#define QSPLITTER_H
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#include <QtGui/qframe.h>
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#include <QtGui/qsizepolicy.h>
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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QT_MODULE(Gui)
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#ifndef QT_NO_SPLITTER
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class QSplitterPrivate;
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class QTextStream;
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template <typename T> class QList;
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class QSplitterHandle;
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class Q_GUI_EXPORT QSplitter : public QFrame
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{
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    Q_OBJECT
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    Q_PROPERTY(Qt::Orientation orientation READ orientation WRITE setOrientation)
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    Q_PROPERTY(bool opaqueResize READ opaqueResize WRITE setOpaqueResize)
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    Q_PROPERTY(int handleWidth READ handleWidth WRITE setHandleWidth)
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    Q_PROPERTY(bool childrenCollapsible READ childrenCollapsible WRITE setChildrenCollapsible)
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public:
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    explicit QSplitter(QWidget* parent = 0);
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    explicit QSplitter(Qt::Orientation, QWidget* parent = 0);
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    ~QSplitter();
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    void addWidget(QWidget *widget);
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    void insertWidget(int index, QWidget *widget);
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    void setOrientation(Qt::Orientation);
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    Qt::Orientation orientation() const;
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    void setChildrenCollapsible(bool);
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    bool childrenCollapsible() const;
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    void setCollapsible(int index, bool);
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    bool isCollapsible(int index) const;
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    void setOpaqueResize(bool opaque = true);
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    bool opaqueResize() const;
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    void refresh();
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    QSize sizeHint() const;
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    QSize minimumSizeHint() const;
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    QList<int> sizes() const;
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    void setSizes(const QList<int> &list);
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    QByteArray saveState() const;
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    bool restoreState(const QByteArray &state);
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    int handleWidth() const;
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    void setHandleWidth(int);
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    int indexOf(QWidget *w) const;
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    QWidget *widget(int index) const;
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    int count() const;
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    void getRange(int index, int *, int *) const;
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    QSplitterHandle *handle(int index) const;
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    void setStretchFactor(int index, int stretch);
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Q_SIGNALS:
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    void splitterMoved(int pos, int index);
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protected:
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    virtual QSplitterHandle *createHandle();
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    void childEvent(QChildEvent *);
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    bool event(QEvent *);
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    void resizeEvent(QResizeEvent *);
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    void changeEvent(QEvent *);
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    void moveSplitter(int pos, int index);
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    void setRubberBand(int position);
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    int closestLegalPosition(int, int);
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#ifdef QT3_SUPPORT
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public:
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    QT3_SUPPORT_CONSTRUCTOR QSplitter(QWidget* parent, const char* name);
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    QT3_SUPPORT_CONSTRUCTOR QSplitter(Qt::Orientation, QWidget* parent, const char* name);
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    enum ResizeMode { Stretch, KeepSize, FollowSizeHint, Auto };
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    QT3_SUPPORT void setResizeMode(QWidget *w, ResizeMode mode);
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    inline QT3_SUPPORT void moveToFirst(QWidget *w) { insertWidget(0,w); }
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    inline QT3_SUPPORT void moveToLast(QWidget *w) { addWidget(w); }
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    inline QT3_SUPPORT void setCollapsible(QWidget *w, bool collapse)
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    { setCollapsible(indexOf(w), collapse); }
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    QT3_SUPPORT void setMargin(int margin) { setContentsMargins(margin, margin, margin, margin); }
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    QT3_SUPPORT int margin() const 
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    { int margin; int dummy; getContentsMargins(&margin, &dummy, &dummy, &dummy);  return margin; }    
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#endif
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private:
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    Q_DISABLE_COPY(QSplitter)
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    Q_DECLARE_PRIVATE(QSplitter)
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private:
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    friend class QSplitterHandle;
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};
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//#ifdef QT3_SUPPORT
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#ifndef QT_NO_TEXTSTREAM
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Q_GUI_EXPORT QTextStream& operator<<(QTextStream&, const QSplitter&);
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Q_GUI_EXPORT QTextStream& operator>>(QTextStream&, QSplitter&);
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#endif
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//#endif
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class QSplitterHandlePrivate;
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class Q_GUI_EXPORT QSplitterHandle : public QWidget
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{
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    Q_OBJECT
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public:
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    QSplitterHandle(Qt::Orientation o, QSplitter *parent);
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    void setOrientation(Qt::Orientation o);
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    Qt::Orientation orientation() const;
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    bool opaqueResize() const;
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    QSplitter *splitter() const;
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    QSize sizeHint() const;
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protected:
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    void paintEvent(QPaintEvent *);
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    void mouseMoveEvent(QMouseEvent *);
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    void mousePressEvent(QMouseEvent *);
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    void mouseReleaseEvent(QMouseEvent *);
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    bool event(QEvent *);
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    void moveSplitter(int p);
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    int closestLegalPosition(int p);
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private:
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    Q_DISABLE_COPY(QSplitterHandle)
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    Q_DECLARE_PRIVATE(QSplitterHandle)
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};
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#endif // QT_NO_SPLITTER
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QT_END_NAMESPACE
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QT_END_HEADER
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#endif // QSPLITTER_H