diff options
Diffstat (limited to 'tools/assistant/lib/qhelpengine.cpp')
| -rw-r--r-- | tools/assistant/lib/qhelpengine.cpp | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/tools/assistant/lib/qhelpengine.cpp b/tools/assistant/lib/qhelpengine.cpp new file mode 100644 index 0000000..6a603b7 --- /dev/null +++ b/tools/assistant/lib/qhelpengine.cpp @@ -0,0 +1,212 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the Qt Assistant of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 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 the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qhelpengine.h" +#include "qhelpengine_p.h" +#include "qhelpdbreader_p.h" +#include "qhelpcontentwidget.h" +#include "qhelpindexwidget.h" +#include "qhelpsearchengine.h" +#include "qhelpcollectionhandler_p.h" + +#include <QtCore/QDir> +#include <QtCore/QFile> +#include <QtCore/QLibrary> +#include <QtCore/QPluginLoader> +#include <QtGui/QApplication> +#include <QtSql/QSqlQuery> + +QT_BEGIN_NAMESPACE + +QHelpEnginePrivate::QHelpEnginePrivate() + : QHelpEngineCorePrivate() + , contentModel(0) + , contentWidget(0) + , indexModel(0) + , indexWidget(0) + , searchEngine(0) +{ +} + +QHelpEnginePrivate::~QHelpEnginePrivate() +{ +} + +void QHelpEnginePrivate::init(const QString &collectionFile, + QHelpEngineCore *helpEngineCore) +{ + QHelpEngineCorePrivate::init(collectionFile, helpEngineCore); + + contentModel = new QHelpContentModel(this); + indexModel = new QHelpIndexModel(this); + + connect(helpEngineCore, SIGNAL(setupFinished()), + this, SLOT(applyCurrentFilter())); + connect(helpEngineCore, SIGNAL(currentFilterChanged(const QString&)), + this, SLOT(applyCurrentFilter())); + +} + +void QHelpEnginePrivate::applyCurrentFilter() +{ + if (!error.isEmpty()) + return; + contentModel->createContents(currentFilter); + indexModel->createIndex(currentFilter); +} + +void QHelpEnginePrivate::setContentsWidgetBusy() +{ + contentWidget->setCursor(Qt::WaitCursor); +} + +void QHelpEnginePrivate::unsetContentsWidgetBusy() +{ + contentWidget->unsetCursor(); +} + +void QHelpEnginePrivate::setIndexWidgetBusy() +{ + indexWidget->setCursor(Qt::WaitCursor); +} + +void QHelpEnginePrivate::unsetIndexWidgetBusy() +{ + indexWidget->unsetCursor(); +} + +void QHelpEnginePrivate::stopDataCollection() +{ + contentModel->invalidateContents(true); + indexModel->invalidateIndex(true); +} + + + +/*! + \class QHelpEngine + \since 4.4 + \inmodule QtHelp + \brief The QHelpEngine class provides access to contents and + indices of the help engine. + + +*/ + +/*! + Constructs a new help engine with the given \a parent. The help + engine uses the information stored in the \a collectionFile for + providing help. If the collection file does not already exist, + it will be created. +*/ +QHelpEngine::QHelpEngine(const QString &collectionFile, QObject *parent) + : QHelpEngineCore(d = new QHelpEnginePrivate(), parent) +{ + d->init(collectionFile, this); +} + +/*! + Destroys the help engine object. +*/ +QHelpEngine::~QHelpEngine() +{ + d->stopDataCollection(); +} + +/*! + Returns the content model. +*/ +QHelpContentModel *QHelpEngine::contentModel() const +{ + return d->contentModel; +} + +/*! + Returns the index model. +*/ +QHelpIndexModel *QHelpEngine::indexModel() const +{ + return d->indexModel; +} + +/*! + Returns the content widget. +*/ +QHelpContentWidget *QHelpEngine::contentWidget() +{ + if (!d->contentWidget) { + d->contentWidget = new QHelpContentWidget(); + d->contentWidget->setModel(d->contentModel); + connect(d->contentModel, SIGNAL(contentsCreationStarted()), + d, SLOT(setContentsWidgetBusy())); + connect(d->contentModel, SIGNAL(contentsCreated()), + d, SLOT(unsetContentsWidgetBusy())); + } + return d->contentWidget; +} + +/*! + Returns the index widget. +*/ +QHelpIndexWidget *QHelpEngine::indexWidget() +{ + if (!d->indexWidget) { + d->indexWidget = new QHelpIndexWidget(); + d->indexWidget->setModel(d->indexModel); + connect(d->indexModel, SIGNAL(indexCreationStarted()), + d, SLOT(setIndexWidgetBusy())); + connect(d->indexModel, SIGNAL(indexCreated()), + d, SLOT(unsetIndexWidgetBusy())); + } + return d->indexWidget; +} + +/*! + Returns the default search engine. +*/ +QHelpSearchEngine* QHelpEngine::searchEngine() +{ + if (!d->searchEngine) + d->searchEngine = new QHelpSearchEngine(this, this); + return d->searchEngine; +} + +QT_END_NAMESPACE |