--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gui/kernel/qsizepolicy.h Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,239 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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 QSIZEPOLICY_H
+#define QSIZEPOLICY_H
+
+#include <QtCore/qobject.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Gui)
+
+class QVariant;
+
+class Q_GUI_EXPORT QSizePolicy
+{
+ Q_GADGET
+ Q_ENUMS(Policy)
+
+private:
+ enum SizePolicyMasks {
+ HSize = 4,
+ HMask = 0x0f,
+ VMask = HMask << HSize,
+ CTShift = 9,
+ CTSize = 5,
+ WFHShift = CTShift + CTSize,
+ CTMask = ((0x1 << CTSize) - 1) << CTShift,
+ UnusedShift = CTShift + CTSize,
+ UnusedSize = 2
+ };
+
+public:
+ enum PolicyFlag {
+ GrowFlag = 1,
+ ExpandFlag = 2,
+ ShrinkFlag = 4,
+ IgnoreFlag = 8
+ };
+
+ enum Policy {
+ Fixed = 0,
+ Minimum = GrowFlag,
+ Maximum = ShrinkFlag,
+ Preferred = GrowFlag | ShrinkFlag,
+ MinimumExpanding = GrowFlag | ExpandFlag,
+ Expanding = GrowFlag | ShrinkFlag | ExpandFlag,
+ Ignored = ShrinkFlag | GrowFlag | IgnoreFlag
+ };
+
+ enum ControlType {
+ DefaultType = 0x00000001,
+ ButtonBox = 0x00000002,
+ CheckBox = 0x00000004,
+ ComboBox = 0x00000008,
+ Frame = 0x00000010,
+ GroupBox = 0x00000020,
+ Label = 0x00000040,
+ Line = 0x00000080,
+ LineEdit = 0x00000100,
+ PushButton = 0x00000200,
+ RadioButton = 0x00000400,
+ Slider = 0x00000800,
+ SpinBox = 0x00001000,
+ TabWidget = 0x00002000,
+ ToolButton = 0x00004000
+ };
+ Q_DECLARE_FLAGS(ControlTypes, ControlType)
+
+ QSizePolicy() : data(0) { }
+
+ // ### Qt 5: merge these two constructors (with type == DefaultType)
+ QSizePolicy(Policy horizontal, Policy vertical)
+ : data(horizontal | (vertical << HSize)) { }
+ QSizePolicy(Policy horizontal, Policy vertical, ControlType type)
+ : data(horizontal | (vertical << HSize)) { setControlType(type); }
+
+ Policy horizontalPolicy() const { return static_cast<Policy>(data & HMask); }
+ Policy verticalPolicy() const { return static_cast<Policy>((data & VMask) >> HSize); }
+ ControlType controlType() const;
+
+ void setHorizontalPolicy(Policy d) { data = (data & ~HMask) | d; }
+ void setVerticalPolicy(Policy d) { data = (data & ~(HMask << HSize)) | (d << HSize); }
+ void setControlType(ControlType type);
+
+ Qt::Orientations expandingDirections() const {
+ Qt::Orientations result;
+ if (verticalPolicy() & ExpandFlag)
+ result |= Qt::Vertical;
+ if (horizontalPolicy() & ExpandFlag)
+ result |= Qt::Horizontal;
+ return result;
+ }
+
+ void setHeightForWidth(bool b) { data = b ? (data | (1 << 2*HSize)) : (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; }
+ operator QVariant() const; // implemented in qabstractlayout.cpp
+
+ int horizontalStretch() const { return data >> 24; }
+ int verticalStretch() const { return (data >> 16) & 0xff; }
+ void setHorizontalStretch(uchar stretchFactor) { data = (data&0x00ffffff) | (uint(stretchFactor)<<24); }
+ void setVerticalStretch(uchar stretchFactor) { data = (data&0xff00ffff) | (uint(stretchFactor)<<16); }
+
+ void transpose();
+
+#ifdef QT3_SUPPORT
+ typedef Policy SizeType;
+#ifndef qdoc
+ typedef Qt::Orientations ExpandData;
+ enum {
+ NoDirection = 0,
+ Horizontally = 1,
+ Vertically = 2,
+ BothDirections = Horizontally | Vertically
+ };
+#else
+ enum ExpandData {
+ NoDirection = 0x0,
+ Horizontally = 0x1,
+ Vertically = 0x2,
+ BothDirections = 0x3
+ };
+#endif // qdoc
+
+ inline QT3_SUPPORT bool mayShrinkHorizontally() const
+ { return horizontalPolicy() & ShrinkFlag; }
+ inline QT3_SUPPORT bool mayShrinkVertically() const { return verticalPolicy() & ShrinkFlag; }
+ inline QT3_SUPPORT bool mayGrowHorizontally() const { return horizontalPolicy() & GrowFlag; }
+ inline QT3_SUPPORT bool mayGrowVertically() const { return verticalPolicy() & GrowFlag; }
+ inline QT3_SUPPORT Qt::Orientations expanding() const { return expandingDirections(); }
+
+ QT3_SUPPORT_CONSTRUCTOR QSizePolicy(Policy hor, Policy ver, bool hfw)
+ : data(hor | (ver<<HSize) | (hfw ? (1U<<2*HSize) : 0)) { }
+
+ QT3_SUPPORT_CONSTRUCTOR QSizePolicy(Policy hor, Policy ver, uchar hors, uchar vers, bool hfw = false)
+ : data(hor | (ver<<HSize) | (hfw ? (1U<<2*HSize) : 0)) {
+ setHorizontalStretch(hors);
+ setVerticalStretch(vers);
+ }
+
+ inline QT3_SUPPORT Policy horData() const { return static_cast<Policy>(data & HMask); }
+ inline QT3_SUPPORT Policy verData() const { return static_cast<Policy>((data & VMask) >> HSize); }
+ inline QT3_SUPPORT void setHorData(Policy d) { setHorizontalPolicy(d); }
+ inline QT3_SUPPORT void setVerData(Policy d) { setVerticalPolicy(d); }
+
+ inline QT3_SUPPORT uint horStretch() const { return horizontalStretch(); }
+ inline QT3_SUPPORT uint verStretch() const { return verticalStretch(); }
+ inline QT3_SUPPORT void setHorStretch(uchar sf) { setHorizontalStretch(sf); }
+ inline QT3_SUPPORT void setVerStretch(uchar sf) { setVerticalStretch(sf); }
+#endif
+
+private:
+#ifndef QT_NO_DATASTREAM
+ friend Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QSizePolicy &);
+ friend Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QSizePolicy &);
+#endif
+ QSizePolicy(int i) : data(i) { }
+
+ quint32 data;
+/* use bit flags instead, keep it here for improved readability for now
+ quint32 horzPolicy : 4;
+ quint32 vertPolicy : 4;
+ quint32 hfw : 1;
+ quint32 ctype : 5;
+ quint32 wfh : 1;
+ quint32 padding : 1; // we cannot use the highest bit
+ quint32 horStretch : 8;
+ quint32 verStretch : 8;
+*/
+
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QSizePolicy::ControlTypes)
+
+#ifndef QT_NO_DATASTREAM
+// implemented in qlayout.cpp
+Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QSizePolicy &);
+Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QSizePolicy &);
+#endif
+
+inline void QSizePolicy::transpose() {
+ Policy hData = horizontalPolicy();
+ Policy vData = verticalPolicy();
+ uchar hStretch = uchar(horizontalStretch());
+ uchar vStretch = uchar(verticalStretch());
+ setHorizontalPolicy(vData);
+ setVerticalPolicy(hData);
+ setHorizontalStretch(vStretch);
+ setVerticalStretch(hStretch);
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QSIZEPOLICY_H