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1/****************************************************************************
2** $Id$
3**
4** Internal header file.
5**
6** Created : 981027
7**
8** Copyright (C) 1998-99 by Trolltech AS. All rights reserved.
9**
10** This file is part of the kernel module of the Qt GUI Toolkit.
11**
12** This file may be distributed under the terms of the Q Public License
13** as defined by Trolltech AS of Norway and appearing in the file
14** LICENSE.QPL included in the packaging of this file.
15**
16** This file may be distributed and/or modified under the terms of the
17** GNU General Public License version 2 as published by the Free Software
18** Foundation and appearing in the file LICENSE.GPL included in the
19** packaging of this file.
20**
21** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
22** licenses may use this file in accordance with the Qt Commercial License
23** Agreement provided with the Software.
24**
25** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
26** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
27**
28** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
29** information about Qt Commercial License Agreements.
30** See http://www.trolltech.com/qpl/ for QPL licensing information.
31** See http://www.trolltech.com/gpl/ for GPL licensing information.
32**
33** Contact info@trolltech.com if any conditions of this licensing are
34** not clear to you.
35**
36**********************************************************************/
37
38#ifndef QLAYOUTENGINE_P_H
39#define QLAYOUTENGINE_P_H
40
41
42//
43// W A R N I N G
44// -------------
45//
46// This file is not part of the Qt API. It exists for the convenience
47// of qlayout.cpp, qlayoutengine.cpp, qmainwindow.cpp and qsplitter.cpp.
48// This header file may change from version to version without notice,
49// or even be removed.
50//
51// We mean it.
52//
53//
54
55
56#ifndef QT_H
57#include "qabstractlayout.h"
58#endif // QT_H
59#ifndef QT_NO_LAYOUT
60struct QLayoutStruct
61{
62 void init() { stretch = 0; initParameters(); }
63 void initParameters() { minimumSize = sizeHint = 0;
64 maximumSize = QWIDGETSIZE_MAX; expansive = FALSE; empty = TRUE; }
65 //permanent storage:
66 int stretch;
67 //parameters:
68 QCOORD sizeHint;
69 QCOORD maximumSize;
70 QCOORD minimumSize;
71 bool expansive;
72 bool empty;
73 //temporary storage:
74 bool done;
75 //result:
76 int pos;
77 int size;
78};
79
80
81void qGeomCalc( QArray<QLayoutStruct> &chain, int start, int count, int pos,
82 int space, int spacer );
83
84
85
86/*
87 Modify total maximum (max) and total expansion (exp)
88 when adding boxmax/boxexp.
89
90 Expansive boxes win over non-expansive boxes.
91*/
92static inline void qMaxExpCalc( QCOORD & max, bool &exp,
93 QCOORD boxmax, bool boxexp )
94{
95 if ( exp ) {
96 if ( boxexp )
97 max = QMAX( max, boxmax );
98 } else {
99 if ( boxexp )
100 max = boxmax;
101 else
102 max = QMIN( max, boxmax );
103 }
104 exp = exp || boxexp;
105}
106
107#endif //QT_NO_LAYOUT
108#endif