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comparison examples/itemviews/customsortfiltermodel/mysortfilterproxymodel.d @ 146:22257add3152

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add customsortfiltermodel example
author mandel
date Fri, 12 Jun 2009 22:20:37 +0000
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children 7c3067c2b803
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145:7648ee2e023b 146:22257add3152
1 /****************************************************************************
2 **
3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4 ** Contact: Qt Software Information (qt-info@nokia.com)
5 **
6 ** This file is part of the examples of the Qt Toolkit.
7 **
8 ** $QT_BEGIN_LICENSE:LGPL$
9 ** Commercial Usage
10 ** Licensees holding valid Qt Commercial licenses may use this file in
11 ** accordance with the Qt Commercial License Agreement provided with the
12 ** Software or, alternatively, in accordance with the terms contained in
13 ** a written agreement between you and Nokia.
14 **
15 ** GNU Lesser General Public License Usage
16 ** Alternatively, this file may be used under the terms of the GNU Lesser
17 ** General Public License version 2.1 as published by the Free Software
18 ** Foundation and appearing in the file LICENSE.LGPL included in the
19 ** packaging of this file. Please review the following information to
20 ** ensure the GNU Lesser General Public License version 2.1 requirements
21 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
22 **
23 ** In addition, as a special exception, Nokia gives you certain
24 ** additional rights. These rights are described in the Nokia Qt LGPL
25 ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
26 ** 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 are unsure which license is appropriate for your use, please
37 ** contact the sales department at qt-sales@nokia.com.
38 ** $QT_END_LICENSE$
39 **
40 ****************************************************************************/
41 module mysortfilterproxymodel;
42
43
44 import qt.core.QDate;
45 import qt.core.QVariant;
46 import qt.core.QDateTime;
47 import qt.gui.QSortFilterProxyModel;
48
49
50 class MySortFilterProxyModel : public QSortFilterProxyModel
51 {
52 public:
53
54 this(QObject parent = null)
55 {
56 super(parent);
57 minDate = new QDate();
58 maxDate = new QDate();
59 }
60
61 QDate filterMinimumDate()
62 {
63 return minDate;
64 }
65
66 void setFilterMinimumDate(QDate date)
67 {
68 minDate = date;
69 invalidateFilter();
70 }
71
72 QDate filterMaximumDate()
73 {
74 return maxDate;
75 }
76
77 void setFilterMaximumDate(QDate date)
78 {
79 maxDate = date;
80 invalidateFilter();
81 }
82
83 protected:
84
85 bool filterAcceptsRow(int sourceRow, QModelIndex sourceParent)
86 {
87 QModelIndex index0 = sourceModel().index(sourceRow, 0, sourceParent);
88 QModelIndex index1 = sourceModel().index(sourceRow, 1, sourceParent);
89 QModelIndex index2 = sourceModel().index(sourceRow, 2, sourceParent);
90
91 static bool contains(char[] str, QRegExp rx)
92 {
93 return (rx.indexIn(str, 0) != -1);
94 }
95
96 return (contains(sourceModel().data(index0).toString(), filterRegExp())
97 || contains(sourceModel().data(index1).toString(), filterRegExp()))
98 && dateInRange(sourceModel().data(index2).toDate());
99 }
100
101
102 bool lessThan(QModelIndex left, QModelIndex right)
103 {
104 QVariant leftData = sourceModel().data(left);
105 QVariant rightData = sourceModel().data(right);
106
107 if (leftData.canConvert!(QDateTime)) {
108 return leftData.toDateTime() < rightData.toDateTime();
109 } else {
110 QRegExp emailPattern = new QRegExp("([\\w\\.]*@[\\w\\.]*)");
111
112 string leftString = leftData.toString();
113 if(left.column() == 1 && emailPattern.indexIn(leftString) != -1)
114 leftString = emailPattern.cap(1);
115
116 string rightString = rightData.toString();
117 if(right.column() == 1 && emailPattern.indexIn(rightString) != -1)
118 rightString = emailPattern.cap(1);
119
120 return leftString < rightString;
121 }
122 }
123
124 private:
125
126 bool dateInRange(QDate date)
127 {
128 return (!minDate.isValid() || date > minDate) && (!maxDate.isValid() || date < maxDate);
129 }
130
131 QDate minDate;
132 QDate maxDate;
133 }