1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "window.h"
#include "mysortfilterproxymodel.h"
#include "filterwidget.h"
#include <QtWidgets>
//! [0]
Window::Window()
{
proxyModel = new MySortFilterProxyModel(this);
//! [0]
//! [1]
sourceView = new QTreeView;
sourceView->setRootIsDecorated(false);
sourceView->setAlternatingRowColors(true);
//! [1]
QHBoxLayout *sourceLayout = new QHBoxLayout;
//! [2]
sourceLayout->addWidget(sourceView);
sourceGroupBox = new QGroupBox(tr("Original Model"));
sourceGroupBox->setLayout(sourceLayout);
//! [2]
//! [3]
filterWidget = new FilterWidget;
filterWidget->setText(tr("Grace|Sports"));
connect(filterWidget, &FilterWidget::filterChanged, this, &Window::textFilterChanged);
filterPatternLabel = new QLabel(tr("&Filter pattern:"));
filterPatternLabel->setBuddy(filterWidget);
fromDateEdit = new QDateEdit;
fromDateEdit->setDate(QDate(1970, 01, 01));
fromLabel = new QLabel(tr("F&rom:"));
fromLabel->setBuddy(fromDateEdit);
toDateEdit = new QDateEdit;
toDateEdit->setDate(QDate(2099, 12, 31));
toLabel = new QLabel(tr("&To:"));
toLabel->setBuddy(toDateEdit);
connect(filterWidget, &QLineEdit::textChanged,
this, &Window::textFilterChanged);
connect(fromDateEdit, &QDateTimeEdit::dateChanged,
this, &Window::dateFilterChanged);
connect(toDateEdit, &QDateTimeEdit::dateChanged,
//! [3] //! [4]
this, &Window::dateFilterChanged);
//! [4]
//! [5]
proxyView = new QTreeView;
proxyView->setRootIsDecorated(false);
proxyView->setAlternatingRowColors(true);
proxyView->setModel(proxyModel);
proxyView->setSortingEnabled(true);
proxyView->sortByColumn(1, Qt::AscendingOrder);
QGridLayout *proxyLayout = new QGridLayout;
proxyLayout->addWidget(proxyView, 0, 0, 1, 3);
proxyLayout->addWidget(filterPatternLabel, 1, 0);
proxyLayout->addWidget(filterWidget, 1, 1);
proxyLayout->addWidget(fromLabel, 3, 0);
proxyLayout->addWidget(fromDateEdit, 3, 1, 1, 2);
proxyLayout->addWidget(toLabel, 4, 0);
proxyLayout->addWidget(toDateEdit, 4, 1, 1, 2);
proxyGroupBox = new QGroupBox(tr("Sorted/Filtered Model"));
proxyGroupBox->setLayout(proxyLayout);
//! [5]
//! [6]
QVBoxLayout *mainLayout = new QVBoxLayout;
mainLayout->addWidget(sourceGroupBox);
mainLayout->addWidget(proxyGroupBox);
setLayout(mainLayout);
setWindowTitle(tr("Custom Sort/Filter Model"));
resize(500, 450);
}
//! [6]
//! [7]
void Window::setSourceModel(QAbstractItemModel *model)
{
proxyModel->setSourceModel(model);
sourceView->setModel(model);
for (int i = 0; i < proxyModel->columnCount(); ++i)
proxyView->resizeColumnToContents(i);
for (int i = 0; i < model->columnCount(); ++i)
sourceView->resizeColumnToContents(i);
}
//! [7]
//! [8]
void Window::textFilterChanged()
{
FilterWidget::PatternSyntax s = filterWidget->patternSyntax();
QString pattern = filterWidget->text();
switch (s) {
case FilterWidget::Wildcard:
pattern = QRegularExpression::wildcardToRegularExpression(pattern);
break;
case FilterWidget::FixedString:
pattern = QRegularExpression::escape(pattern);
break;
default:
break;
}
QRegularExpression::PatternOptions options = QRegularExpression::NoPatternOption;
if (filterWidget->caseSensitivity() == Qt::CaseInsensitive)
options |= QRegularExpression::CaseInsensitiveOption;
QRegularExpression regularExpression(pattern, options);
proxyModel->setFilterRegularExpression(regularExpression);
}
//! [8]
//! [9]
void Window::dateFilterChanged()
{
proxyModel->setFilterMinimumDate(fromDateEdit->date());
proxyModel->setFilterMaximumDate(toDateEdit->date());
}
//! [9]
|
