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215
src/plugins/help/indextoolwindow.cpp
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215
src/plugins/help/indextoolwindow.cpp
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/***************************************************************************
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**
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** This file is part of Qt Creator
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**
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** Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Qt Software Information (qt-info@nokia.com)
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**
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**
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** Non-Open Source Usage
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**
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** Licensees may use this file in accordance with the Qt Beta Version
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** License Agreement, Agreement version 2.2 provided with the Software or,
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** alternatively, in accordance with the terms contained in a written
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** agreement between you and Nokia.
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**
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** GNU General Public License Usage
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**
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License versions 2.0 or 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the packaging
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** of this file. Please review the following information to ensure GNU
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** General Public Licensing requirements will be met:
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**
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** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt GPL Exception version
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** 1.2, included in the file GPL_EXCEPTION.txt in this package.
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**
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***************************************************************************/
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#include <QtCore/QDebug>
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#include <QtGui/QKeyEvent>
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#include <QtGui/QFocusEvent>
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#include <QtGui/QLayout>
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#include <QtGui/QLabel>
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#include <QtGui/QLineEdit>
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#include <QtGui/QListView>
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#include <QtGui/QApplication>
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#include "indextoolwindow.h"
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#include "helpengine.h"
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#include "topicchooser.h"
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using namespace Help::Internal;
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IndexToolWidget::IndexToolWidget()
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{
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wasInitialized = false;
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QVBoxLayout *layout = new QVBoxLayout(this);
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layout->setMargin(0);
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QLabel *l = new QLabel(tr("Look for:"), this);
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layout->addWidget(l);
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findLineEdit = new QLineEdit(this);
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findLineEdit->installEventFilter(this);
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layout->addWidget(findLineEdit);
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indicesView = new QListView(this);
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indicesView->setLayoutMode(QListView::Batched);
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indicesView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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layout->addWidget(indicesView);
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setWindowTitle(tr("Index"));
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setWindowIcon(QIcon(":/help/images/find.png"));
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}
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void IndexToolWidget::focusInEvent(QFocusEvent *e)
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{
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showEvent(0);
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if (e && e->reason() != Qt::MouseFocusReason) {
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findLineEdit->selectAll();
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findLineEdit->setFocus();
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}
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}
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void IndexToolWidget::showEvent(QShowEvent *)
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{
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if (!wasInitialized) {
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wasInitialized = true;
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setCursor(QCursor(Qt::WaitCursor));
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emit buildRequested();
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}
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}
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bool IndexToolWidget::eventFilter(QObject * o, QEvent * e)
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{
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if (o == findLineEdit && e->type() == QEvent::KeyPress) {
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switch (static_cast<QKeyEvent*>(e)->key()) {
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case Qt::Key_Up:
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case Qt::Key_Down:
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case Qt::Key_PageDown:
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case Qt::Key_PageUp:
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QApplication::sendEvent(indicesView, e);
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break;
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case Qt::Key_Escape:
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emit escapePressed();
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break;
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default:
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break;
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}
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}
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return QWidget::eventFilter(o, e);
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}
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IndexToolWindow::IndexToolWindow(const QList<int> &context, HelpEngine *help)
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{
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m_context = context;
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m_context << 0;
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m_widget = new IndexToolWidget;
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helpEngine = help;
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connect(helpEngine, SIGNAL(indexInitialized()), this, SLOT(indexDone()));
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model = 0;
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connect(m_widget->findLineEdit, SIGNAL(textEdited(const QString&)),
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this, SLOT(searchInIndex(const QString &)));
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connect(m_widget->findLineEdit, SIGNAL(returnPressed()), this, SLOT(indexRequested()));
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connect(m_widget, SIGNAL(buildRequested()), helpEngine, SLOT(buildIndex()));
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connect(m_widget->indicesView, SIGNAL(activated(const QModelIndex&)),
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this, SLOT(indexRequested()));
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connect(m_widget, SIGNAL(escapePressed()), this, SIGNAL(escapePressed()));
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}
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IndexToolWindow::~IndexToolWindow()
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{
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delete m_widget;
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}
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const QList<int> &IndexToolWindow::context() const
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{
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return m_context;
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}
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QWidget *IndexToolWindow::widget()
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{
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return m_widget;
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}
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void IndexToolWindow::indexDone()
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{
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model = helpEngine->indices();
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m_widget->indicesView->setModel(model);
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m_widget->setCursor(QCursor(Qt::ArrowCursor));
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}
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void IndexToolWindow::searchInIndex(const QString &str)
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{
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if (!model)
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return;
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QRegExp atoz("[A-Z]");
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int matches = str.count(atoz);
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if (matches > 0 && !str.contains(".*"))
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{
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int start = 0;
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QString newSearch;
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for (; matches > 0; --matches) {
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int match = str.indexOf(atoz, start+1);
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if (match <= start)
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continue;
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newSearch += str.mid(start, match-start);
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newSearch += ".*";
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start = match;
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}
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newSearch += str.mid(start);
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m_widget->indicesView->setCurrentIndex(model->filter(newSearch, str));
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}
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else
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m_widget->indicesView->setCurrentIndex(model->filter(str, str));
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}
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void IndexToolWindow::indexRequested()
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{
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if (!model)
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return;
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int row = m_widget->indicesView->currentIndex().row();
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if (row == -1 || row >= model->rowCount())
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return;
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QString description = model->description(row);
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QStringList links = model->links(row);
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bool blocked = m_widget->findLineEdit->blockSignals(true);
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m_widget->findLineEdit->setText(description);
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m_widget->findLineEdit->blockSignals(blocked);
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if (links.count() == 1) {
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emit showLinkRequested(links.first(), false);
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} else {
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qSort(links);
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QStringList::Iterator it = links.begin();
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QStringList linkList;
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QStringList linkNames;
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for (; it != links.end(); ++it) {
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linkList << *it;
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linkNames << helpEngine->titleOfLink(*it);
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}
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QString link = TopicChooser::getLink(m_widget, linkNames, linkList, description);
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if (!link.isEmpty())
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emit showLinkRequested(link, false);
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}
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model->publish();
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m_widget->indicesView->setCurrentIndex(model->index(model->stringList().indexOf(description)));
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m_widget->indicesView->scrollTo(m_widget->indicesView->currentIndex(), QAbstractItemView::PositionAtTop);
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}
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