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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (info@qt.nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** 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.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#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);
}
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