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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2010 Denis Mingulov.
**
** 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 "classviewnavigationwidget.h"
#include "ui_classviewnavigationwidget.h"
#include "classviewtreeitemmodel.h"
#include "classviewmanager.h"
#include "classviewsymbollocation.h"
#include "classviewsymbolinformation.h"
#include "classviewutils.h"
#include "classviewconstants.h"
#include <utils/qtcassert.h>
#include <QtCore/QDebug>
#include <QtCore/QPointer>
enum { debug = false };
namespace ClassView {
namespace Internal {
///////////////////////////////// NavigationWidgetPrivate //////////////////////////////////
/*!
\struct NavigationWidgetPrivate
\brief Internal data structures / methods for NavigationWidget
*/
struct NavigationWidgetPrivate
{
NavigationWidgetPrivate() : ui(0) {}
//! Ui generated by Designer
Ui::NavigationWidget *ui;
//! current tree model
QPointer<TreeItemModel> treeModel;
//! full projects mode
QPointer<QToolButton> fullProjectsModeButton;
};
///////////////////////////////// NavigationWidget //////////////////////////////////
NavigationWidget::NavigationWidget(QWidget *parent) :
QWidget(parent),
d_ptr(new NavigationWidgetPrivate())
{
d_ptr->ui = new Ui::NavigationWidget;
d_ptr->ui->setupUi(this);
// tree model
d_ptr->treeModel = new TreeItemModel(this);
d_ptr->ui->treeView->setModel(d_ptr->treeModel);
// connect signal/slots
// selected item
connect(d_ptr->ui->treeView, SIGNAL(activated(QModelIndex)), SLOT(onItemActivated(QModelIndex)));
// connections to the manager
Manager *manager = Manager::instance();
connect(this, SIGNAL(visibilityChanged(bool)),
manager, SLOT(onWidgetVisibilityIsChanged(bool)));
connect(this, SIGNAL(requestGotoLocation(QString,int,int)),
manager, SLOT(gotoLocation(QString,int,int)));
connect(this, SIGNAL(requestGotoLocations(QList<QVariant>)),
manager, SLOT(gotoLocations(QList<QVariant>)));
connect(manager, SIGNAL(treeDataUpdate(QSharedPointer<QStandardItem>)),
this, SLOT(onDataUpdate(QSharedPointer<QStandardItem>)));
connect(this, SIGNAL(requestTreeDataUpdate()),
manager, SLOT(onRequestTreeDataUpdate()));
}
NavigationWidget::~NavigationWidget()
{
delete d_ptr->fullProjectsModeButton;
delete d_ptr->ui;
}
void NavigationWidget::hideEvent(QHideEvent *event)
{
emit visibilityChanged(false);
QWidget::hideEvent(event);
}
void NavigationWidget::showEvent(QShowEvent *event)
{
emit visibilityChanged(true);
// request to update to the current state - to be sure
emit requestTreeDataUpdate();
QWidget::showEvent(event);
}
QList<QToolButton *> NavigationWidget::createToolButtons()
{
QList<QToolButton *> list;
// full projects mode
if (!d_ptr->fullProjectsModeButton) {
// create a button
d_ptr->fullProjectsModeButton = new QToolButton();
d_ptr->fullProjectsModeButton->setIcon(
QIcon(QLatin1String(":/classview/images/hierarchicalmode.png")));
d_ptr->fullProjectsModeButton->setCheckable(true);
d_ptr->fullProjectsModeButton->setToolTip(tr("Show Subprojects"));
// by default - not a flat mode
setFlatMode(false);
// connections
connect(d_ptr->fullProjectsModeButton, SIGNAL(toggled(bool)),
this, SLOT(onFullProjectsModeToggled(bool)));
}
list << d_ptr->fullProjectsModeButton;
return list;
}
bool NavigationWidget::flatMode() const
{
QTC_ASSERT(d_ptr->fullProjectsModeButton, return false);
// button is 'full projects mode' - so it has to be inverted
return !d_ptr->fullProjectsModeButton->isChecked();
}
void NavigationWidget::setFlatMode(bool flatMode)
{
QTC_ASSERT(d_ptr->fullProjectsModeButton, return);
// button is 'full projects mode' - so it has to be inverted
d_ptr->fullProjectsModeButton->setChecked(!flatMode);
}
void NavigationWidget::onFullProjectsModeToggled(bool state)
{
// button is 'full projects mode' - so it has to be inverted
Manager::instance()->setFlatMode(!state);
}
void NavigationWidget::onItemActivated(const QModelIndex &index)
{
if (!index.isValid())
return;
QList<QVariant> list = d_ptr->treeModel->data(index, Constants::SymbolLocationsRole).toList();
emit requestGotoLocations(list);
}
void NavigationWidget::onDataUpdate(QSharedPointer<QStandardItem> result)
{
if (result.isNull())
return;
// if this is 1st call
bool expandRootItems = false;
if (d_ptr->treeModel->invisibleRootItem()->rowCount() == 0)
expandRootItems = true;
QTime timer;
if (debug)
timer.start();
// update is received. root item must be updated - and received information
// might be just a root - if a lazy data population is enabled.
// so expanded items must be parsed and 'fetched'
fetchExpandedItems(result.data(), d_ptr->treeModel->invisibleRootItem());
d_ptr->treeModel->moveRootToTarget(result.data());
// expand top level projects
QModelIndex sessionIndex;
for (int i = 0; i < d_ptr->treeModel->rowCount(sessionIndex); ++i)
d_ptr->ui->treeView->expand(d_ptr->treeModel->index(i, 0, sessionIndex));
if (debug)
qDebug() << "Class View:" << QDateTime::currentDateTime().toString()
<< "TreeView is updated in" << timer.elapsed() << "msecs";
}
void NavigationWidget::fetchExpandedItems(QStandardItem *item, const QStandardItem *target) const
{
if (!item || !target)
return;
const QModelIndex &parent = d_ptr->treeModel->indexFromItem(target);
if (d_ptr->ui->treeView->isExpanded(parent))
Manager::instance()->fetchMore(item, true);
int itemIndex = 0;
int targetIndex = 0;
int itemRows = item->rowCount();
int targetRows = target->rowCount();
while (itemIndex < itemRows && targetIndex < targetRows) {
QStandardItem *itemChild = item->child(itemIndex);
const QStandardItem *targetChild = target->child(targetIndex);
const SymbolInformation &itemInf = Utils::symbolInformationFromItem(itemChild);
const SymbolInformation &targetInf = Utils::symbolInformationFromItem(targetChild);
if (itemInf < targetInf) {
++itemIndex;
} else if (itemInf == targetInf) {
fetchExpandedItems(itemChild, targetChild);
++itemIndex;
++targetIndex;
} else {
++targetIndex;
}
}
}
} // namespace Internal
} // namespace ClassView
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