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-/****************************************************************************
-**
-** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the QtGui module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** No Commercial Usage
-** This file contains pre-release code and may not be distributed.
-** You may use this file in accordance with the terms and conditions
-** contained in the Technology Preview License Agreement accompanying
-** this package.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain additional
-** rights. These rights are described in the Nokia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** If you have questions regarding the use of this file, please contact
-** Nokia at qt-info@nokia.com.
-**
-**
-**
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#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"
-#include "QtGui/qstyle.h"
-
-QT_BEGIN_NAMESPACE
-
-template <typename T> class QVector;
-
-struct QLayoutStruct
-{
- inline void init(int stretchFactor = 0, int minSize = 0) {
- stretch = stretchFactor;
- minimumSize = sizeHint = minSize;
- maximumSize = QLAYOUTSIZE_MAX;
- expansive = false;
- empty = true;
- spacing = 0;
- }
-
- int smartSizeHint() {
- return (stretch > 0) ? minimumSize : sizeHint;
- }
- int effectiveSpacer(int uniformSpacer) const {
- Q_ASSERT(uniformSpacer >= 0 || spacing >= 0);
- return (uniformSpacer >= 0) ? uniformSpacer : spacing;
- }
-
- // parameters
- int stretch;
- int sizeHint;
- int maximumSize;
- int minimumSize;
- bool expansive;
- bool empty;
- int spacing;
-
- // 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 = -1);
-Q_GUI_EXPORT QSize qSmartMinSize(const QSize &sizeHint, const QSize &minSizeHint,
- const QSize &minSize, const QSize &maxSize,
- const QSizePolicy &sizePolicy);
-Q_GUI_EXPORT QSize qSmartMinSize(const QWidgetItem *i);
-Q_GUI_EXPORT QSize qSmartMinSize(const QWidget *w);
-Q_GUI_EXPORT QSize qSmartMaxSize(const QSize &sizeHint,
- const QSize &minSize, const QSize &maxSize,
- const QSizePolicy &sizePolicy, Qt::Alignment align = 0);
-Q_GUI_EXPORT QSize qSmartMaxSize(const QWidgetItem *i, Qt::Alignment align = 0);
-Q_GUI_EXPORT QSize qSmartMaxSize(const QWidget *w, Qt::Alignment align = 0);
-
-Q_GUI_EXPORT int qSmartSpacing(const QLayout *layout, QStyle::PixelMetric pm);
-
-/*
- 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;
-}
-
-QT_END_NAMESPACE
-
-#endif // QLAYOUTENGINE_P_H