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/*
* Cantata
*
* Copyright (c) 2011-2022 Craig Drummond <craig.p.drummond@gmail.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 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; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "streamsproxymodel.h"
#include "streamsmodel.h"
StreamsProxyModel::StreamsProxyModel(QObject* parent)
: ProxyModel(parent)
{
setDynamicSortFilter(true);
setFilterCaseSensitivity(Qt::CaseInsensitive);
setSortCaseSensitivity(Qt::CaseInsensitive);
setSortLocaleAware(true);
sort(0);
}
bool StreamsProxyModel::filterAcceptsItem(const void* i, QStringList strings) const
{
const StreamsModel::Item* item = static_cast<const StreamsModel::Item*>(i);
strings << item->name;
if (matchesFilter(strings)) {
return true;
}
if (item->isCategory()) {
const StreamsModel::CategoryItem* cat = static_cast<const StreamsModel::CategoryItem*>(item);
for (const StreamsModel::Item* c : cat->children) {
if (filterAcceptsItem(c, strings)) {
return true;
}
}
}
return false;
}
bool StreamsProxyModel::filterAcceptsRow(int sourceRow, const QModelIndex& sourceParent) const
{
if (!filterEnabled) {
return true;
}
if (!isChildOfRoot(sourceParent)) {
return true;
}
const QModelIndex index = sourceModel()->index(sourceRow, 0, sourceParent);
StreamsModel::Item* item = static_cast<StreamsModel::Item*>(index.internalPointer());
QModelIndex idx = index.parent();
QStringList strings;
if (filter && item == filter) {// Accept top-level item!
return true;
}
if (filter && !idx.isValid() && item != filter) {// Accept all items that are not children of top-level item!
return true;
}
// Traverse back up tree, so we get parent strings...
while (idx.isValid()) {
StreamsModel::Item* i = static_cast<StreamsModel::Item*>(idx.internalPointer());
if (!i->isCategory()) {
break;
}
strings << i->name;
idx = idx.parent();
if (filter && !idx.isValid() && i != filter) {// Accept all items that are not children of top-level item!
return true;
}
}
if (item->isCategory()) {
// Check *all* children...
if (filterAcceptsItem(item, strings)) {
return true;
}
}
else {
strings << item->name;
return matchesFilter(strings);
}
return false;
}
bool StreamsProxyModel::lessThan(const QModelIndex& left, const QModelIndex& right) const
{
const StreamsModel::Item* leftItem = static_cast<const StreamsModel::Item*>(left.internalPointer());
const StreamsModel::Item* rightItem = static_cast<const StreamsModel::Item*>(right.internalPointer());
if (leftItem->isCategory() && !rightItem->isCategory()) {
return true;
}
if (!leftItem->isCategory() && rightItem->isCategory()) {
return false;
}
if (leftItem->isCategory() && rightItem->isCategory()) {
const StreamsModel::CategoryItem* leftCat = static_cast<const StreamsModel::CategoryItem*>(leftItem);
const StreamsModel::CategoryItem* rightCat = static_cast<const StreamsModel::CategoryItem*>(rightItem);
if (leftCat->isFavourites() && !rightCat->isFavourites()) {
return true;
}
if (!leftCat->isFavourites() && rightCat->isFavourites()) {
return false;
}
if (leftCat->isAll && !rightCat->isAll) {
return true;
}
if (!leftCat->isAll && rightCat->isAll) {
return false;
}
}
return QSortFilterProxyModel::lessThan(left, right);
}
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