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/*
favoritesitemview.cpp
This file is part of GammaRay, the Qt application inspection and manipulation tool.
SPDX-FileCopyrightText: 2013 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
Author: Waqar Ahmed <waqar.ahmed@kdab.com>
SPDX-License-Identifier: GPL-2.0-or-later
Contact KDAB at <info@kdab.com> for commercial licensing options.
*/
#include "favoritesitemview.h"
#include "kde/kdescendantsproxymodel.h"
#include "kde/kmodelindexproxymapper.h"
using namespace GammaRay;
void ObjectsFavoriteView::setModel(QAbstractItemModel *model)
{
// We have three proxy models sitting in the line
// FavoritesModel -> KDescendantsProxyModel -> FavoritesModel -> View
// 1. Favorites model filters out all the non-favorites
// 2. This small list of favorites is then flattened by kdescendantsproxymodel
// 3. The flattened list is then refiltered to remove any parents
//
// We can do it with 2 models as well i.e.,
// KDescendantsProxyModel -> FavoritesModel -> View
// However, this makes things super slow
auto proxyModel1 = static_cast<FavoritesModel *>(model);
proxyModel1->setRecursiveFilteringEnabled(true);
auto flatteningModel = new KDescendantsProxyModel(this);
flatteningModel->setSourceModel(proxyModel1);
auto proxyModel2 = new FavoritesModel(flatteningModel, this);
m_proxyMapper = new KModelIndexProxyMapper(proxyModel1->sourceModel(), proxyModel2, this);
FavoritesItemView<DeferredTreeView>::setModel(proxyModel2);
}
void ObjectsFavoriteView::onIndexClicked(const QModelIndex &idx)
{
if (!idx.isValid() || !m_sourceView || !m_proxyMapper)
return;
auto pm = static_cast<KModelIndexProxyMapper *>(m_proxyMapper);
auto sourceIdx = pm->mapRightToLeft(idx);
m_sourceView->selectionModel()->select(sourceIdx, QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
}
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