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
|
/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
**
**************************************************************************/
#include "topicchooser.h"
#include <QtCore/QMap>
#include <QtCore/QUrl>
#include <QtGui/QKeyEvent>
#include <QtGui/QStandardItemModel>
#include <QtGui/QSortFilterProxyModel>
TopicChooser::TopicChooser(QWidget *parent, const QString &keyword,
const QMap<QString, QUrl> &links)
: QDialog(parent)
, m_filterModel(new QSortFilterProxyModel(this))
{
ui.setupUi(this);
setFocusProxy(ui.lineEdit);
ui.lineEdit->installEventFilter(this);
ui.lineEdit->setPlaceholderText(tr("Filter"));
ui.label->setText(tr("Choose a topic for <b>%1</b>:").arg(keyword));
QStandardItemModel *model = new QStandardItemModel(this);
m_filterModel->setSourceModel(model);
m_filterModel->setFilterCaseSensitivity(Qt::CaseInsensitive);
QMap<QString, QUrl>::const_iterator it = links.constBegin();
for (; it != links.constEnd(); ++it) {
m_links.append(it.value());
model->appendRow(new QStandardItem(it.key()));
}
ui.listWidget->setModel(m_filterModel);
ui.listWidget->setUniformItemSizes(true);
ui.listWidget->setEditTriggers(QAbstractItemView::NoEditTriggers);
if (m_filterModel->rowCount() != 0)
ui.listWidget->setCurrentIndex(m_filterModel->index(0, 0));
connect(ui.buttonDisplay, SIGNAL(clicked()), this, SLOT(acceptDialog()));
connect(ui.buttonCancel, SIGNAL(clicked()), this, SLOT(reject()));
connect(ui.listWidget, SIGNAL(activated(QModelIndex)), this,
SLOT(activated(QModelIndex)));
connect(ui.lineEdit, SIGNAL(filterChanged(QString)), this,
SLOT(setFilter(QString)));
}
QUrl TopicChooser::link() const
{
if (m_activedIndex.isValid())
return m_links.at(m_filterModel->mapToSource(m_activedIndex).row());
return QUrl();
}
void TopicChooser::acceptDialog()
{
m_activedIndex = ui.listWidget->currentIndex();
accept();
}
void TopicChooser::setFilter(const QString &pattern)
{
m_filterModel->setFilterFixedString(pattern);
if (m_filterModel->rowCount() != 0 && !ui.listWidget->currentIndex().isValid())
ui.listWidget->setCurrentIndex(m_filterModel->index(0, 0));
}
void TopicChooser::activated(const QModelIndex &index)
{
m_activedIndex = index;
accept();
}
bool TopicChooser::eventFilter(QObject *object, QEvent *event)
{
if (object == ui.lineEdit && event->type() == QEvent::KeyPress) {
QModelIndex idx = ui.listWidget->currentIndex();
switch ((static_cast<QKeyEvent*>(event)->key())) {
case Qt::Key_Up:
idx = m_filterModel->index(idx.row() - 1, idx.column(),
idx.parent());
if (idx.isValid())
ui.listWidget->setCurrentIndex(idx);
break;
case Qt::Key_Down:
idx = m_filterModel->index(idx.row() + 1, idx.column(),
idx.parent());
if (idx.isValid())
ui.listWidget->setCurrentIndex(idx);
break;
default: ;
}
} else if (ui.lineEdit && event->type() == QEvent::FocusIn
&& static_cast<QFocusEvent *>(event)->reason() != Qt::MouseFocusReason) {
ui.lineEdit->selectAll();
ui.lineEdit->setFocus();
}
return QDialog::eventFilter(object, event);
}
|
