/**************************************************************************** ** ** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved. ** ** This file is part of the QtGui module of the Qt Toolkit. ** ** This file may be used under the terms of the GNU General Public ** License version 2.0 as published by the Free Software Foundation ** and appearing in the file LICENSE.GPL included in the packaging of ** this file. Please review the following information to ensure GNU ** General Public Licensing requirements will be met: ** http://www.trolltech.com/products/qt/opensource.html ** ** If you are unsure which license is appropriate for your use, please ** review the following information: ** http://www.trolltech.com/products/qt/licensing.html or contact the ** sales department at sales@trolltech.com. ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ** ****************************************************************************/ #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 purely as an // implementation detail. This header file may change from version to // version without notice, or even be removed. // // We mean it. // #include "QtGui/qlayoutitem.h" template <typename T> class QVector; struct QLayoutStruct { inline void init(int stretchFactor = 0, int spacing = 0) { stretch = stretchFactor; minimumSize = sizeHint = spacing; maximumSize = QLAYOUTSIZE_MAX; expansive = false; empty = true; } int smartSizeHint() { return (stretch > 0) ? minimumSize : sizeHint; } // parameters int stretch; int sizeHint; int maximumSize; int minimumSize; bool expansive; bool empty; // temporary storage bool done; // result int pos; int size; }; Q_GUI_EXPORT void qGeomCalc(QVector<QLayoutStruct> &chain, int start, int count, int pos, int space, int spacer); Q_GUI_EXPORT QSize qSmartMinSize(const QWidgetItem *i); Q_GUI_EXPORT QSize qSmartMinSize(const QWidget *w); Q_GUI_EXPORT QSize qSmartMaxSize(const QWidgetItem *i, Qt::Alignment align = 0); Q_GUI_EXPORT QSize qSmartMaxSize(const QWidget *w, Qt::Alignment align = 0); /* Modify total maximum (max), total expansion (exp), and total empty when adding boxmax/boxexp. Expansive boxes win over non-expansive boxes. Non-empty boxes win over empty boxes. */ static inline void qMaxExpCalc(int & max, bool &exp, bool &empty, int boxmax, bool boxexp, bool boxempty) { if (exp) { if (boxexp) max = qMax(max, boxmax); } else { if (boxexp || empty && (!boxempty || max == 0)) max = boxmax; else if (empty == boxempty) max = qMin(max, boxmax); } exp = exp || boxexp; empty = empty && boxempty; } #endif // QLAYOUTENGINE_P_H