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/*
* KDevelop Class viewer
*
* Copyright 2006 Adam Treat <treat@kde.org>
* Copyright (c) 2006-2007 Hamish Rodda <rodda@kde.org>
* Copyright 2009 Lior Mualem <lior.m.kde@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "classtree.h"
#include <QMenu>
#include <QHeaderView>
#include <QContextMenuEvent>
#include <QScrollBar>
#include "interfaces/contextmenuextension.h"
#include "interfaces/icore.h"
#include "interfaces/idocument.h"
#include "interfaces/iplugincontroller.h"
#include "language/interfaces/codecontext.h"
#include "language/duchain/duchainbase.h"
#include "language/duchain/duchain.h"
#include "language/duchain/duchainlock.h"
#include "language/duchain/declaration.h"
#include "language/classmodel/classmodel.h"
#include "classbrowserplugin.h"
using namespace KDevelop;
ClassTree::ClassTree(QWidget* parent, ClassBrowserPlugin* plugin)
: QTreeView(parent)
, m_plugin(plugin)
, m_tooltip(nullptr)
{
header()->hide();
setIndentation(10);
setUniformRowHeights(true);
connect(this, &ClassTree::activated, this, &ClassTree::itemActivated);
}
ClassTree::~ClassTree()
{
}
static bool _populatingClassBrowserContextMenu = false;
bool ClassTree::populatingClassBrowserContextMenu()
{
return _populatingClassBrowserContextMenu;
}
void ClassTree::contextMenuEvent(QContextMenuEvent* e)
{
auto* menu = new QMenu(this);
QModelIndex index = indexAt(e->pos());
if (index.isValid()) {
Context* c;
{
DUChainReadLocker readLock(DUChain::lock());
if (auto* decl = dynamic_cast<Declaration*>(model()->duObjectForIndex(index)))
c = new DeclarationContext(decl);
else
{
delete menu;
return;
}
}
_populatingClassBrowserContextMenu = true;
QList<ContextMenuExtension> extensions =
ICore::self()->pluginController()->queryPluginsForContextMenuExtensions(c, menu);
ContextMenuExtension::populateMenu(menu, extensions);
_populatingClassBrowserContextMenu = false;
}
if (!menu->actions().isEmpty())
menu->exec(e->globalPos());
delete menu;
}
bool ClassTree::event(QEvent* event)
{
if (event->type() == QEvent::ToolTip) {
// if we request a tooltip over a duobject item, show a tooltip for it
auto* helpEvent = static_cast<QHelpEvent*>(event);
const QModelIndex idxView = indexAt(helpEvent->pos());
DUChainReadLocker readLock(DUChain::lock());
if (auto* decl = dynamic_cast<Declaration*>(model()->duObjectForIndex(idxView))) {
if (m_tooltip) {
m_tooltip->close();
}
if (auto* navigationWidget = decl->topContext()->createNavigationWidget(decl)) {
m_tooltip = new KDevelop::NavigationToolTip(this, helpEvent->globalPos() + QPoint(40,
0), navigationWidget);
m_tooltip->resize(navigationWidget->sizeHint() + QSize(10, 10));
ActiveToolTip::showToolTip(m_tooltip);
return true;
}
}
}
return QAbstractItemView::event(event);
}
ClassModel* ClassTree::model()
{
return static_cast<ClassModel*>(QTreeView::model());
}
void ClassTree::itemActivated(const QModelIndex& index)
{
DUChainReadLocker readLock(DUChain::lock());
DeclarationPointer decl = DeclarationPointer(dynamic_cast<Declaration*>(model()->duObjectForIndex(index)));
readLock.unlock();
// Delegate to plugin function
m_plugin->showDefinition(decl);
if (isExpanded(index))
collapse(index);
else
expand(index);
}
void ClassTree::highlightIdentifier(const KDevelop::IndexedQualifiedIdentifier& a_id)
{
QModelIndex index = model()->indexForIdentifier(a_id);
if (!index.isValid())
return;
// expand and select the item.
selectionModel()->select(index, QItemSelectionModel::ClearAndSelect);
scrollTo(index, PositionAtCenter);
horizontalScrollBar()->setValue(horizontalScrollBar()->minimum());
expand(index);
}
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