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/****************************************************************************
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**
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** Definition of QSplitter class
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**
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** Created : 980105
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**
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** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
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**
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** This file is part of the widgets module of the Qt GUI Toolkit.
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**
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** This file may be used under the terms of the GNU General
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** Public License versions 2.0 or 3.0 as published by the Free
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** Software Foundation and appearing in the files LICENSE.GPL2
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** and LICENSE.GPL3 included in the packaging of this file.
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** Alternatively you may (at your option) use any later version
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** of the GNU General Public License if such license has been
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** publicly approved by Trolltech ASA (or its successors, if any)
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** and the KDE Free Qt Foundation.
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**
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** Please review the following information to ensure GNU General
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** Public Licensing requirements will be met:
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** http://trolltech.com/products/qt/licenses/licensing/opensource/.
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** If you are unsure which license is appropriate for your use, please
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** review the following information:
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** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
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** or contact the sales department at sales@trolltech.com.
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**
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** This file may be used under the terms of the Q Public License as
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** defined by Trolltech ASA and appearing in the file LICENSE.QPL
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** included in the packaging of this file. Licensees holding valid Qt
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** Commercial licenses may use this file in accordance with the Qt
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** Commercial License Agreement provided with the Software.
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**
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** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
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** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
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** herein.
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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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#ifndef QT_H
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#include "qframe.h"
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#include "qvaluelist.h"
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#endif // QT_H
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#ifndef QT_NO_SPLITTER
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#define QT_QSPLITTER_DEFAULT 2
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class QSplitterHandle;
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class QSplitterPrivate;
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class QSplitterLayoutStruct;
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class QTextStream;
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class QSplitterPrivate
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{
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public:
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QSplitterPrivate()
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: opaque( FALSE ), firstShow( TRUE ), childrenCollapsible( TRUE ),
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handleWidth( 0 ) { }
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QPtrList<QSplitterLayoutStruct> list;
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bool opaque : 8;
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bool firstShow : 8;
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bool childrenCollapsible : 8;
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int handleWidth;
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};
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class QSplitterLayoutStruct : public Qt
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{
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public:
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QCOORD sizer;
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uint isHandle : 1;
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uint collapsible : 2;
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uint resizeMode : 2;
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QWidget *wid;
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QSplitterLayoutStruct()
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: sizer( -1 ), collapsible( QT_QSPLITTER_DEFAULT ) { }
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QCOORD getSizer( Orientation orient );
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};
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QCOORD QSplitterLayoutStruct::getSizer( Orientation orient )
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{
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if ( sizer == -1 ) {
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QSize s = wid->sizeHint();
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if ( !s.isValid() || wid->testWState(WState_Resized) )
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s = wid->size();
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sizer = ( orient == Horizontal ) ? s.width() : s.height();
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}
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return sizer;
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}
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class Q_EXPORT QSplitter : public QFrame
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{
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Q_OBJECT
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Q_PROPERTY( 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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// ### Qt 4.0: remove Auto from public API
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enum ResizeMode { Stretch, KeepSize, FollowSizeHint, Auto };
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QSplitter( QWidget* parent = 0, const char* name = 0 );
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QSplitter( Orientation, QWidget* parent = 0, const char* name = 0 );
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~QSplitter();
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virtual void setOrientation( Orientation );
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Orientation orientation() const { return orient; }
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// ### Qt 4.0: make setChildrenCollapsible() and setCollapsible() virtual
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void setChildrenCollapsible( bool );
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bool childrenCollapsible() const;
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void setCollapsible( QWidget *w, bool );
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virtual void setResizeMode( QWidget *w, ResizeMode );
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virtual void setOpaqueResize( bool = TRUE );
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bool opaqueResize() const;
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void moveToFirst( QWidget * );
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void moveToLast( QWidget * );
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void refresh() { recalc( TRUE ); }
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QSize sizeHint() const;
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QSize minimumSizeHint() const;
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QValueList<int> sizes() const;
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void setSizes( QValueList<int> );
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int handleWidth() const;
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void setHandleWidth( int );
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protected:
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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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int idAfter( QWidget* ) const;
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void moveSplitter( QCOORD pos, int id );
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virtual void drawSplitter( QPainter*, QCOORD x, QCOORD y,
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QCOORD w, QCOORD h );
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void styleChange( QStyle& );
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int adjustPos( int, int );
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virtual void setRubberband( int );
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void getRange( int id, int *, int * );
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public: //private:
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enum { DefaultResizeMode = 3 };
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void init();
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void recalc( bool update = FALSE );
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void doResize();
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void storeSizes();
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void getRange( int id, int *, int *, int *, int * );
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void addContribution( int, int *, int *, bool );
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int adjustPos( int, int, int *, int *, int *, int * );
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bool collapsible( QSplitterLayoutStruct * );
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void processChildEvents();
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QSplitterLayoutStruct *findWidget( QWidget * );
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QSplitterLayoutStruct *addWidget( QWidget *, bool prepend = FALSE );
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void recalcId();
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void doMove( bool backwards, int pos, int id, int delta, bool upLeft,
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bool mayCollapse );
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void setGeo( QWidget *w, int pos, int size, bool splitterMoved );
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int findWidgetJustBeforeOrJustAfter( int id, int delta, int &collapsibleSize );
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void updateHandles();
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inline QCOORD pick( const QPoint &p ) const
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{ return orient == Horizontal ? p.x() : p.y(); }
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inline QCOORD pick( const QSize &s ) const
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{ return orient == Horizontal ? s.width() : s.height(); }
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inline QCOORD trans( const QPoint &p ) const
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{ return orient == Vertical ? p.x() : p.y(); }
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inline QCOORD trans( const QSize &s ) const
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{ return orient == Vertical ? s.width() : s.height(); }
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QSplitterPrivate *d;
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Orientation orient;
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friend class QSplitterHandle;
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#ifndef QT_NO_TEXTSTREAM
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friend Q_EXPORT QTextStream& operator<<( QTextStream&, const QSplitter& );
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friend Q_EXPORT QTextStream& operator>>( QTextStream&, QSplitter& );
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#endif
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private:
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#if defined(Q_DISABLE_COPY)
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QSplitter( const QSplitter & );
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QSplitter& operator=( const QSplitter & );
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#endif
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};
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#ifndef QT_NO_TEXTSTREAM
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Q_EXPORT QTextStream& operator<<( QTextStream&, const QSplitter& );
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Q_EXPORT QTextStream& operator>>( QTextStream&, QSplitter& );
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#endif
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class QSplitterHandle : public QWidget
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{
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Q_OBJECT
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public:
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QSplitterHandle( Orientation o,
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QSplitter *parent, const char* name=0 );
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void setOrientation( Orientation o );
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Orientation orientation() const { return orient; }
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bool opaque() const { return s->opaqueResize(); }
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QSize sizeHint() const;
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int id() const { return myId; } // d->list.at(id())->wid == this
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void setId( int i ) { myId = i; }
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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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public: // private:
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Orientation orient;
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bool opaq;
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int myId;
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QSplitter *s;
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};
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#endif // QT_NO_SPLITTER
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#endif // QSPLITTER_H
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