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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-07-10 15:24:15 -0500
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-07-10 15:24:15 -0500
commitbd0f3345a938b35ce6a12f6150373b0955b8dd12 (patch)
tree7a520322212d48ebcb9fbe1087e7fca28b76185c /src/kernel/qsizepolicy.h
downloadqt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.tar.gz
qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.zip
Add Qt3 development HEAD version
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+/****************************************************************************
+**
+** Definition of the QSizePolicy class
+**
+** Created : 980929
+**
+** Copyright (C) 1998-2008 Trolltech ASA. All rights reserved.
+**
+** This file is part of the kernel module of the Qt GUI Toolkit.
+**
+** This file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free
+** Software Foundation and appearing in the files LICENSE.GPL2
+** and LICENSE.GPL3 included in the packaging of this file.
+** Alternatively you may (at your option) use any later version
+** of the GNU General Public License if such license has been
+** publicly approved by Trolltech ASA (or its successors, if any)
+** and the KDE Free Qt Foundation.
+**
+** Please review the following information to ensure GNU General
+** Public Licensing requirements will be met:
+** http://trolltech.com/products/qt/licenses/licensing/opensource/.
+** If you are unsure which license is appropriate for your use, please
+** review the following information:
+** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
+** or contact the sales department at sales@trolltech.com.
+**
+** This file may be used under the terms of the Q Public License as
+** defined by Trolltech ASA and appearing in the file LICENSE.QPL
+** included in the packaging of this file. Licensees holding valid Qt
+** Commercial 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 WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
+** herein.
+**
+**********************************************************************/
+
+#ifndef QSIZEPOLICY_H
+#define QSIZEPOLICY_H
+
+#ifndef QT_H
+#include "qglobal.h"
+#endif // QT_H
+
+// Documentation is in qabstractlayout.cpp.
+
+class Q_EXPORT QSizePolicy
+{
+private:
+ enum SizePolicy_Internal { HSize = 6, HMask = 0x3f, VMask = HMask << HSize,
+ MayGrow = 1, ExpMask = 2, MayShrink = 4 };
+public:
+ enum SizeType { Fixed = 0,
+ Minimum = MayGrow,
+ Maximum = MayShrink,
+ Preferred = MayGrow | MayShrink,
+ MinimumExpanding = MayGrow | ExpMask,
+ Expanding = MayGrow | MayShrink | ExpMask,
+ Ignored = ExpMask /* magic value */ };
+
+ enum ExpandData { NoDirection = 0,
+ Horizontally = 1,
+ Vertically = 2,
+#ifndef QT_NO_COMPAT
+ Horizontal = Horizontally,
+ Vertical = Vertically,
+#endif
+ BothDirections = Horizontally | Vertically };
+
+ QSizePolicy() : data( 0 ) { }
+
+ QSizePolicy( SizeType hor, SizeType ver, bool hfw = FALSE )
+ : data( hor | (ver<<HSize) | (hfw ? (Q_UINT32)(1<<2*HSize) : 0) ) { }
+ QSizePolicy( SizeType hor, SizeType ver, uchar hors, uchar vers, bool hfw = FALSE );
+
+ SizeType horData() const { return (SizeType)( data & HMask ); }
+ SizeType verData() const { return (SizeType)( (data & VMask) >> HSize ); }
+
+ bool mayShrinkHorizontally() const { return horData() & MayShrink || horData() == Ignored; }
+ bool mayShrinkVertically() const { return verData() & MayShrink || verData() == Ignored; }
+ bool mayGrowHorizontally() const { return horData() & MayGrow || horData() == Ignored; }
+ bool mayGrowVertically() const { return verData() & MayGrow || verData() == Ignored; }
+
+ ExpandData expanding() const
+ {
+ return (ExpandData)( (int)(verData() & ExpMask ? Vertically : 0) |
+ (int)(horData() & ExpMask ? Horizontally : 0) );
+ }
+
+ void setHorData( SizeType d ) { data = (Q_UINT32)(data & ~HMask) | d; }
+ void setVerData( SizeType d ) { data = (Q_UINT32)(data & ~(HMask << HSize)) |
+ (d << HSize); }
+
+ void setHeightForWidth( bool b ) { data = b ? (Q_UINT32)( data | ( 1 << 2*HSize ) )
+ : (Q_UINT32)( data & ~( 1 << 2*HSize ) ); }
+ bool hasHeightForWidth() const { return data & ( 1 << 2*HSize ); }
+
+ bool operator==( const QSizePolicy& s ) const { return data == s.data; }
+ bool operator!=( const QSizePolicy& s ) const { return data != s.data; }
+
+
+ uint horStretch() const { return data >> 24; }
+ uint verStretch() const { return (data >> 16) & 0xff; }
+ void setHorStretch( uchar sf ) { data = (data&0x00ffffff) | (uint(sf)<<24); }
+ void setVerStretch( uchar sf ) { data = (data&0xff00ffff) | (uint(sf)<<16); }
+ inline void transpose();
+
+private:
+ QSizePolicy( int i ) : data( (Q_UINT32)i ) { }
+
+ Q_UINT32 data;
+};
+
+inline QSizePolicy::QSizePolicy( SizeType hor, SizeType ver, uchar hors, uchar vers, bool hfw )
+ : data( hor | (ver<<HSize) | (hfw ? (Q_UINT32)(1<<2*HSize) : 0) ) {
+ setHorStretch( hors );
+ setVerStretch( vers );
+}
+
+inline void QSizePolicy::transpose() {
+ *this = QSizePolicy( verData(), horData(), verStretch(), horStretch(),
+ hasHeightForWidth() );
+}
+
+#endif // QSIZEPOLICY_H