1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtGui module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #ifndef QABSTRACTLAYOUTSTYLEINFO_P_H 41 #define QABSTRACTLAYOUTSTYLEINFO_P_H 42 43 // 44 // W A R N I N G 45 // ------------- 46 // 47 // This file is not part of the Qt API. It exists purely as an 48 // implementation detail. This header file may change from version to 49 // version without notice, or even be removed. 50 // 51 // We mean it. 52 // 53 54 #include <QtGui/private/qtguiglobal_p.h> 55 #include <QtCore/qnamespace.h> 56 #include "qlayoutpolicy_p.h" 57 58 QT_BEGIN_NAMESPACE 59 60 61 class Q_GUI_EXPORT QAbstractLayoutStyleInfo { 62 public: 63 QAbstractLayoutStyleInfo()64 QAbstractLayoutStyleInfo() : m_isWindow(false) {} ~QAbstractLayoutStyleInfo()65 virtual ~QAbstractLayoutStyleInfo() {} combinedLayoutSpacing(QLayoutPolicy::ControlTypes,QLayoutPolicy::ControlTypes,Qt::Orientation)66 virtual qreal combinedLayoutSpacing(QLayoutPolicy::ControlTypes /*controls1*/, 67 QLayoutPolicy::ControlTypes /*controls2*/, Qt::Orientation /*orientation*/) const { 68 return -1; 69 } 70 perItemSpacing(QLayoutPolicy::ControlType,QLayoutPolicy::ControlType,Qt::Orientation)71 virtual qreal perItemSpacing(QLayoutPolicy::ControlType /*control1*/, 72 QLayoutPolicy::ControlType /*control2*/, 73 Qt::Orientation /*orientation*/) const { 74 return -1; 75 } 76 77 virtual qreal spacing(Qt::Orientation orientation) const = 0; 78 hasChangedCore()79 virtual bool hasChangedCore() const { return false; } // ### Remove when usage is gone from subclasses 80 invalidate()81 virtual void invalidate() { } 82 83 virtual qreal windowMargin(Qt::Orientation orientation) const = 0; 84 isWindow()85 bool isWindow() const { 86 return m_isWindow; 87 } 88 89 protected: 90 unsigned m_isWindow : 1; 91 mutable unsigned m_hSpacingState: 2; 92 mutable unsigned m_vSpacingState: 2; 93 mutable qreal m_spacing[2]; 94 }; 95 96 QT_END_NAMESPACE 97 98 #endif // QABSTRACTLAYOUTSTYLEINFO_P_H 99