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/* ============================================================
*
* This file is a part of the rekonq project
*
* Copyright (C) 2007-2008 Trolltech ASA. All rights reserved
* Copyright (C) 2008-2009 by Andrea Diamantini <adjam7 at gmail dot com>
*
*
* This program is free software; you can redistribute it
* and/or modify it under the terms of the GNU General
* Public License as published by the Free Software Foundation;
* either version 3, 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.
*
* ============================================================ */
// Self Includes
#include "modelmenu.h"
#include "modelmenu.moc"
ModelMenu::ModelMenu(QWidget * parent)
: KMenu(parent)
, m_maxRows(7)
, m_firstSeparator(-1)
, m_maxWidth(-1)
, m_hoverRole(0)
, m_separatorRole(0)
, m_model(0)
{
connect(this, SIGNAL(aboutToShow()), this, SLOT(aboutToShow()));
}
bool ModelMenu::prePopulated()
{
return false;
}
void ModelMenu::postPopulated()
{
}
void ModelMenu::setModel(QAbstractItemModel *model)
{
m_model = model;
}
QAbstractItemModel *ModelMenu::model() const
{
return m_model;
}
void ModelMenu::setMaxRows(int max)
{
m_maxRows = max;
}
int ModelMenu::maxRows() const
{
return m_maxRows;
}
void ModelMenu::setFirstSeparator(int offset)
{
m_firstSeparator = offset;
}
int ModelMenu::firstSeparator() const
{
return m_firstSeparator;
}
void ModelMenu::setRootIndex(const QModelIndex &index)
{
m_root = index;
}
QModelIndex ModelMenu::rootIndex() const
{
return m_root;
}
void ModelMenu::setHoverRole(int role)
{
m_hoverRole = role;
}
int ModelMenu::hoverRole() const
{
return m_hoverRole;
}
void ModelMenu::setSeparatorRole(int role)
{
m_separatorRole = role;
}
int ModelMenu::separatorRole() const
{
return m_separatorRole;
}
Q_DECLARE_METATYPE(QModelIndex)
void ModelMenu::aboutToShow()
{
if (QMenu *menu = qobject_cast<QMenu*>(sender()))
{
QVariant v = menu->menuAction()->data();
if (v.canConvert<QModelIndex>())
{
QModelIndex idx = qvariant_cast<QModelIndex>(v);
createMenu(idx, -1, menu, menu);
disconnect(menu, SIGNAL(aboutToShow()), this, SLOT(aboutToShow()));
return;
}
}
clear();
if (prePopulated())
addSeparator();
int max = m_maxRows;
if (max != -1)
max += m_firstSeparator;
createMenu(m_root, max, this, this);
postPopulated();
}
void ModelMenu::createMenu(const QModelIndex &parent, int max, QMenu *parentMenu, QMenu *menu)
{
if (!menu)
{
QString title = parent.data().toString();
menu = new QMenu(title, this);
QIcon icon = qvariant_cast<QIcon>(parent.data(Qt::DecorationRole));
menu->setIcon(icon);
parentMenu->addMenu(menu);
QVariant v;
v.setValue(parent);
menu->menuAction()->setData(v);
connect(menu, SIGNAL(aboutToShow()), this, SLOT(aboutToShow()));
return;
}
int end = m_model->rowCount(parent);
if (max != -1)
end = qMin(max, end);
connect(menu, SIGNAL(triggered(QAction*)), this, SLOT(triggered(QAction*)));
connect(menu, SIGNAL(hovered(QAction*)), this, SLOT(hovered(QAction*)));
for (int i = 0; i < end; ++i)
{
QModelIndex idx = m_model->index(i, 0, parent);
/* if (m_model->hasChildren(idx))
{
createMenu(idx, -1, menu);
}
else
{*/
if (m_separatorRole != 0
&& idx.data(m_separatorRole).toBool())
addSeparator();
else
menu->addAction(makeAction(idx));
// }
if (menu == this && i == m_firstSeparator - 1)
addSeparator();
}
}
KAction *ModelMenu::makeAction(const QModelIndex &index)
{
QIcon icon = qvariant_cast<QIcon>(index.data(Qt::DecorationRole));
KAction *action = (KAction *) makeAction(KIcon(icon), index.data().toString(), this);
QVariant v;
v.setValue(index);
action->setData(v);
return action;
}
KAction *ModelMenu::makeAction(const KIcon &icon, const QString &text, QObject *parent)
{
QFontMetrics fm(font());
if (-1 == m_maxWidth)
m_maxWidth = fm.width(QLatin1Char('m')) * 30;
QString smallText = fm.elidedText(text, Qt::ElideMiddle, m_maxWidth);
return new KAction(icon, smallText, parent);
}
void ModelMenu::triggered(QAction *action)
{
QVariant v = action->data();
if (v.canConvert<QModelIndex>())
{
QModelIndex idx = qvariant_cast<QModelIndex>(v);
emit activated(idx);
}
}
void ModelMenu::hovered(QAction *action)
{
QVariant v = action->data();
if (v.canConvert<QModelIndex>())
{
QModelIndex idx = qvariant_cast<QModelIndex>(v);
QString hoveredString = idx.data(m_hoverRole).toString();
if (!hoveredString.isEmpty())
emit hovered(hoveredString);
}
}
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