source: trunk/examples/tools/settingseditor/variantdelegate.cpp@ 694

Last change on this file since 694 was 651, checked in by Dmitry A. Kuminov, 16 years ago

trunk: Merged in qt 4.6.2 sources.
File size: 9.7 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the examples of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
15**
16** GNU Lesser General Public License Usage
17** Alternatively, this file may be used under the terms of the GNU Lesser
18** General Public License version 2.1 as published by the Free Software
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
22** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
23**
24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you have questions regarding the use of this file, please contact
37** Nokia at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include <QtGui>
43
44#include "variantdelegate.h"
45
46VariantDelegate::VariantDelegate(QObject *parent)
47 : QItemDelegate(parent)
48{
49 boolExp.setPattern("true|false");
50 boolExp.setCaseSensitivity(Qt::CaseInsensitive);
51
52 byteArrayExp.setPattern("[\\x00-\\xff]*");
53 charExp.setPattern(".");
54 colorExp.setPattern("\\(([0-9]*),([0-9]*),([0-9]*),([0-9]*)\\)");
55 doubleExp.setPattern("");
56 pointExp.setPattern("\\((-?[0-9]*),(-?[0-9]*)\\)");
57 rectExp.setPattern("\\((-?[0-9]*),(-?[0-9]*),(-?[0-9]*),(-?[0-9]*)\\)");
58 signedIntegerExp.setPattern("-?[0-9]*");
59 sizeExp = pointExp;
60 unsignedIntegerExp.setPattern("[0-9]*");
61
62 dateExp.setPattern("([0-9]{,4})-([0-9]{,2})-([0-9]{,2})");
63 timeExp.setPattern("([0-9]{,2}):([0-9]{,2}):([0-9]{,2})");
64 dateTimeExp.setPattern(dateExp.pattern() + "T" + timeExp.pattern());
65}
66
67void VariantDelegate::paint(QPainter *painter,
68 const QStyleOptionViewItem &option,
69 const QModelIndex &index) const
70{
71 if (index.column() == 2) {
72 QVariant value = index.model()->data(index, Qt::UserRole);
73 if (!isSupportedType(value.type())) {
74 QStyleOptionViewItem myOption = option;
75 myOption.state &= ~QStyle::State_Enabled;
76 QItemDelegate::paint(painter, myOption, index);
77 return;
78 }
79 }
80
81 QItemDelegate::paint(painter, option, index);
82}
83
84QWidget *VariantDelegate::createEditor(QWidget *parent,
85 const QStyleOptionViewItem & /* option */,
86 const QModelIndex &index) const
87{
88 if (index.column() != 2)
89 return 0;
90
91 QVariant originalValue = index.model()->data(index, Qt::UserRole);
92 if (!isSupportedType(originalValue.type()))
93 return 0;
94
95 QLineEdit *lineEdit = new QLineEdit(parent);
96 lineEdit->setFrame(false);
97
98 QRegExp regExp;
99
100 switch (originalValue.type()) {
101 case QVariant::Bool:
102 regExp = boolExp;
103 break;
104 case QVariant::ByteArray:
105 regExp = byteArrayExp;
106 break;
107 case QVariant::Char:
108 regExp = charExp;
109 break;
110 case QVariant::Color:
111 regExp = colorExp;
112 break;
113 case QVariant::Date:
114 regExp = dateExp;
115 break;
116 case QVariant::DateTime:
117 regExp = dateTimeExp;
118 break;
119 case QVariant::Double:
120 regExp = doubleExp;
121 break;
122 case QVariant::Int:
123 case QVariant::LongLong:
124 regExp = signedIntegerExp;
125 break;
126 case QVariant::Point:
127 regExp = pointExp;
128 break;
129 case QVariant::Rect:
130 regExp = rectExp;
131 break;
132 case QVariant::Size:
133 regExp = sizeExp;
134 break;
135 case QVariant::Time:
136 regExp = timeExp;
137 break;
138 case QVariant::UInt:
139 case QVariant::ULongLong:
140 regExp = unsignedIntegerExp;
141 break;
142 default:
143 ;
144 }
145
146 if (!regExp.isEmpty()) {
147 QValidator *validator = new QRegExpValidator(regExp, lineEdit);
148 lineEdit->setValidator(validator);
149 }
150
151 return lineEdit;
152}
153
154void VariantDelegate::setEditorData(QWidget *editor,
155 const QModelIndex &index) const