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/***************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2008 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 1.2, included in the file GPL_EXCEPTION.txt in this package.
**
***************************************************************************/
***************************************************************************/
#include <QtCore/QDebug>
#include <QtCore/QStack>
#include <QtGui/QFocusEvent>
#include <QtGui/QKeyEvent>
#include "contentstoolwindow.h"
#include "helpengine.h"
using namespace Help::Internal;
ContentsToolWidget::ContentsToolWidget()
{
wasInitialized = false;
setRootIsDecorated(true);
setItemHidden(headerItem(), true);
setUniformRowHeights(true);
setColumnCount(1);
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setWindowTitle(tr("Contents"));
setWindowIcon(QIcon(":/help/images/book.png"));
}
void ContentsToolWidget::focusInEvent(QFocusEvent *e)
{
if (wasInitialized) {
if (e && e->reason() != Qt::MouseFocusReason
&& !currentItem() && topLevelItemCount())
setCurrentItem(topLevelItem(0));
return;
}
wasInitialized = true;
setCursor(QCursor(Qt::WaitCursor));
emit buildRequested();
}
void ContentsToolWidget::showEvent(QShowEvent *)
{
if (wasInitialized)
return;
wasInitialized = true;
setCursor(QCursor(Qt::WaitCursor));
emit buildRequested();
}
void ContentsToolWidget::keyPressEvent(QKeyEvent *e)
{
if (e && e->key() == Qt::Key_Escape) {
emit escapePressed();
e->accept();
return;
}
QTreeWidget::keyPressEvent(e);
}
enum
{
LinkRole = Qt::UserRole + 1000
};
ContentsToolWindow::ContentsToolWindow(const QList<int> &context, HelpEngine *help)
{
m_widget = new ContentsToolWidget;
helpEngine = help;
connect(helpEngine, SIGNAL(contentsInitialized()), this, SLOT(contentsDone()));
connect(m_widget, SIGNAL(buildRequested()), helpEngine, SLOT(buildContents()));
m_context = context;
m_context << 0;
connect(m_widget, SIGNAL(itemActivated(QTreeWidgetItem*,int)), this, SLOT(indexRequested()));
connect(m_widget, SIGNAL(escapePressed()), this, SIGNAL(escapePressed()));
}
ContentsToolWindow::~ContentsToolWindow()
{
delete m_widget;
}
const QList<int> &ContentsToolWindow::context() const
{
return m_context;
}
QWidget *ContentsToolWindow::widget()
{
return m_widget;
}
void ContentsToolWindow::contentsDone()
{
m_widget->setCursor(QCursor(Qt::WaitCursor));
QList<QPair<QString, ContentList> > contentList = helpEngine->contents();
for(QList<QPair<QString, ContentList> >::Iterator it = contentList.begin(); it != contentList.end(); ++it) {
QTreeWidgetItem *newEntry;
QTreeWidgetItem *contentEntry;
QStack<QTreeWidgetItem*> stack;
stack.clear();
int depth = 0;
bool root = false;
QTreeWidgetItem *lastItem[64];
for(int j = 0; j < 64; ++j)
lastItem[j] = 0;
ContentList lst = (*it).second;
for (ContentList::ConstIterator it = lst.begin(); it != lst.end(); ++it) {
ContentItem item = *it;
if (item.depth == 0) {
newEntry = new QTreeWidgetItem(m_widget, 0);
newEntry->setIcon(0, QIcon(QString::fromUtf8(":/help/images/book.png")));
newEntry->setText(0, item.title);
newEntry->setData(0, LinkRole, item.reference);
stack.push(newEntry);
depth = 1;
root = true;
}
else{
if((item.depth > depth) && root) {
depth = item.depth;
stack.push(contentEntry);
}
if(item.depth == depth) {
contentEntry = new QTreeWidgetItem(stack.top(), lastItem[ depth ]);
lastItem[ depth ] = contentEntry;
contentEntry->setText(0, item.title);
contentEntry->setData(0, LinkRole, item.reference);
}
else if(item.depth < depth) {
stack.pop();
depth--;
item = *(--it);
}
}
}
}
m_widget->setCursor(QCursor(Qt::ArrowCursor));
}
void ContentsToolWindow::indexRequested()
{
QTreeWidgetItem *itm = m_widget->currentItem();
if (!itm)
return;
emit showLinkRequested(itm->data(0, LinkRole).toString(), false);
}
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