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/***************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Qt Software Information (qt-info@nokia.com)
**
**
** Non-Open Source Usage
**
** Licensees may use this file in accordance with the Qt Beta Version
** License Agreement, Agreement version 2.2 provided with the Software or,
** alternatively, in accordance with the terms contained in a written
** agreement between you and Nokia.
**
** GNU General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the packaging
** of this file. Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
**
** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
** http://www.gnu.org/copyleft/gpl.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt GPL Exception
** version 1.3, included in the file GPL_EXCEPTION.txt in this package.
**
***************************************************************************/
#include "indextoolwindow.h"
#include "helpengine.h"
#include "topicchooser.h"
#include <QtCore/QDebug>
#include <QtGui/QKeyEvent>
#include <QtGui/QFocusEvent>
#include <QtGui/QLayout>
#include <QtGui/QLabel>
#include <QtGui/QLineEdit>
#include <QtGui/QListView>
#include <QtGui/QApplication>
using namespace Help::Internal;
IndexToolWidget::IndexToolWidget()
{
wasInitialized = false;
QVBoxLayout *layout = new QVBoxLayout(this);
layout->setMargin(0);
QLabel *l = new QLabel(tr("Look for:"), this);
layout->addWidget(l);
findLineEdit = new QLineEdit(this);
findLineEdit->installEventFilter(this);
layout->addWidget(findLineEdit);
indicesView = new QListView(this);
indicesView->setLayoutMode(QListView::Batched);
indicesView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
layout->addWidget(indicesView);
setWindowTitle(tr("Index"));
setWindowIcon(QIcon(":/help/images/find.png"));
}
void IndexToolWidget::focusInEvent(QFocusEvent *e)
{
showEvent(0);
if (e && e->reason() != Qt::MouseFocusReason) {
findLineEdit->selectAll();
findLineEdit->setFocus();
}
}
void IndexToolWidget::showEvent(QShowEvent *)
{
if (!wasInitialized) {
wasInitialized = true;
setCursor(QCursor(Qt::WaitCursor));
emit buildRequested();
}
}
bool IndexToolWidget::eventFilter(QObject * o, QEvent * e)
{
if (o == findLineEdit && e->type() == QEvent::KeyPress) {
switch (static_cast<QKeyEvent*>(e)->key()) {
case Qt::Key_Up:
case Qt::Key_Down:
case Qt::Key_PageDown:
case Qt::Key_PageUp:
QApplication::sendEvent(indicesView, e);
break;
case Qt::Key_Escape:
emit escapePressed();
break;
default:
break;
}
}
return QWidget::eventFilter(o, e);
}
IndexToolWindow::IndexToolWindow(const QList<int> &context, HelpEngine *help)
{
m_context = context;
m_context << 0;
m_widget = new IndexToolWidget;
helpEngine = help;
connect(helpEngine, SIGNAL(indexInitialized()), this, SLOT(indexDone()));
model = 0;
connect(m_widget->findLineEdit, SIGNAL(textEdited(const QString&)),
this, SLOT(searchInIndex(const QString &)));
connect(m_widget->findLineEdit, SIGNAL(returnPressed()), this, SLOT(indexRequested()));
connect(m_widget, SIGNAL(buildRequested()), helpEngine, SLOT(buildIndex()));
connect(m_widget->indicesView, SIGNAL(activated(const QModelIndex&)),
this, SLOT(indexRequested()));
connect(m_widget, SIGNAL(escapePressed()), this, SIGNAL(escapePressed()));
}
IndexToolWindow::~IndexToolWindow()
{
delete m_widget;
}
const QList<int> &IndexToolWindow::context() const
{
return m_context;
}
QWidget *IndexToolWindow::widget()
{
return m_widget;
}
void IndexToolWindow::indexDone()
{
model = helpEngine->indices();
m_widget->indicesView->setModel(model);
m_widget->setCursor(QCursor(Qt::ArrowCursor));
}
void IndexToolWindow::searchInIndex(const QString &str)
{
if (!model)
return;
QRegExp atoz("[A-Z]");
int matches = str.count(atoz);
if (matches > 0 && !str.contains(".*"))
{
int start = 0;
QString newSearch;
for (; matches > 0; --matches) {
int match = str.indexOf(atoz, start+1);
if (match <= start)
continue;
newSearch += str.mid(start, match-start);
newSearch += ".*";
start = match;
}
newSearch += str.mid(start);
m_widget->indicesView->setCurrentIndex(model->filter(newSearch, str));
}
else
m_widget->indicesView->setCurrentIndex(model->filter(str, str));
}
void IndexToolWindow::indexRequested()
{
if (!model)
return;
int row = m_widget->indicesView->currentIndex().row();
if (row == -1 || row >= model->rowCount())
return;
QString description = model->description(row);
QStringList links = model->links(row);
bool blocked = m_widget->findLineEdit->blockSignals(true);
m_widget->findLineEdit->setText(description);
m_widget->findLineEdit->blockSignals(blocked);
if (links.count() == 1) {
emit showLinkRequested(links.first(), false);
} else {
qSort(links);
QStringList::Iterator it = links.begin();
QStringList linkList;
QStringList linkNames;
for (; it != links.end(); ++it) {
linkList << *it;
linkNames << helpEngine->titleOfLink(*it);
}
QString link = TopicChooser::getLink(m_widget, linkNames, linkList, description);
if (!link.isEmpty())
emit showLinkRequested(link, false);
}
model->publish();
m_widget->indicesView->setCurrentIndex(model->index(model->stringList().indexOf(description)));
m_widget->indicesView->scrollTo(m_widget->indicesView->currentIndex(), QAbstractItemView::PositionAtTop);
}
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