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/****************************************************************************
** $Id$
**
** Internal header file.
**
** Created : 981027
**
** Copyright (C) 1998-99 by Trolltech AS. All rights reserved.
**
** This file is part of the kernel module of the Qt GUI Toolkit.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Trolltech AS of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
** licenses may use this file in accordance with the Qt Commercial License
** Agreement provided with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about Qt Commercial License Agreements.
** See http://www.trolltech.com/qpl/ for QPL licensing information.
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
#ifndef QLAYOUTENGINE_P_H
#define QLAYOUTENGINE_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of qlayout.cpp, qlayoutengine.cpp, qmainwindow.cpp and qsplitter.cpp.
// This header file may change from version to version without notice,
// or even be removed.
//
// We mean it.
//
//
#ifndef QT_H
#include "qabstractlayout.h"
#endif // QT_H
#ifndef QT_NO_LAYOUT
struct QLayoutStruct
{
void initParameters() {
minimumSize = sizeHint = 0;
maximumSize = QLAYOUTSIZE_MAX;
expansive = FALSE;
empty = TRUE;
}
void init() {
stretch = 0;
initParameters();
}
QCOORD smartSizeHint() {
return ( stretch > 0 ) ? minimumSize : sizeHint;
}
// permanent storage
int stretch;
// parameters
QCOORD sizeHint;
QCOORD maximumSize;
QCOORD minimumSize;
bool expansive;
bool empty;
// temporary storage
bool done;
// result
int pos;
int size;
};
Q_EXPORT void qGeomCalc( QMemArray<QLayoutStruct> &chain, int start, int count,
int pos, int space, int spacer );
Q_EXPORT QSize qSmartMinSize( const QWidgetItem *i );
Q_EXPORT QSize qSmartMinSize( QWidget *w );
Q_EXPORT QSize qSmartMaxSize( const QWidgetItem *i, int align = 0 );
Q_EXPORT QSize qSmartMaxSize( QWidget *w, int align = 0 );
/*
Modify total maximum (max) and total expansion (exp)
when adding boxmax/boxexp.
Expansive boxes win over non-expansive boxes.
*/
static inline void qMaxExpCalc( QCOORD & max, bool &exp,
QCOORD boxmax, bool boxexp )
{
if ( exp ) {
if ( boxexp )
max = QMAX( max, boxmax );
} else {
if ( boxexp )
max = boxmax;
else
max = QMIN( max, boxmax );
}
exp = exp || boxexp;
}
#endif //QT_NO_LAYOUT
#endif
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