mirror of
https://bitbucket.org/smil3y/kde-playground.git
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311 lines
8.8 KiB
C++
311 lines
8.8 KiB
C++
/*
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Copyright (C) 2010 Klarälvdalens Datakonsult AB,
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a KDAB Group company, info@kdab.net,
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author Stephen Kelly <stephen@kdab.com>
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This library is free software; you can redistribute it and/or modify it
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under the terms of the GNU Library General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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This library is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
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License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301, USA.
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*/
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#include "entityorderproxymodel.h"
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#include <QMimeData>
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#include <KDE/KConfigGroup>
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#include <KUrl>
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#include "collection.h"
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#include "item.h"
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#include "entitytreemodel.h"
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namespace Akonadi
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{
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class EntityOrderProxyModelPrivate
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{
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public:
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EntityOrderProxyModelPrivate(EntityOrderProxyModel *qq)
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: q_ptr(qq)
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{
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}
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void saveOrder(const QModelIndex &index);
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KConfigGroup m_orderConfig;
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Q_DECLARE_PUBLIC(EntityOrderProxyModel)
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EntityOrderProxyModel *const q_ptr;
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};
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}
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using namespace Akonadi;
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EntityOrderProxyModel::EntityOrderProxyModel(QObject *parent)
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: QSortFilterProxyModel(parent)
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, d_ptr(new EntityOrderProxyModelPrivate(this))
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{
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setDynamicSortFilter(true);
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//setSortCaseSensitivity( Qt::CaseInsensitive );
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}
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EntityOrderProxyModel::~EntityOrderProxyModel()
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{
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delete d_ptr;
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}
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void EntityOrderProxyModel::setOrderConfig(KConfigGroup &configGroup)
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{
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Q_D(EntityOrderProxyModel);
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layoutAboutToBeChanged();
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d->m_orderConfig = configGroup;
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layoutChanged();
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}
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bool EntityOrderProxyModel::lessThan(const QModelIndex &left, const QModelIndex &right) const
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{
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Q_D(const EntityOrderProxyModel);
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if (!d->m_orderConfig.isValid()) {
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return QSortFilterProxyModel::lessThan(left, right);
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}
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Collection col = left.data(EntityTreeModel::ParentCollectionRole).value<Collection>();
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if (!d->m_orderConfig.hasKey(QString::number(col.id()))) {
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return QSortFilterProxyModel::lessThan(left, right);
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}
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const QStringList list = d->m_orderConfig.readEntry(QString::number(col.id()), QStringList());
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if (list.isEmpty()) {
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return QSortFilterProxyModel::lessThan(left, right);
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}
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const QString leftValue = configString(left);
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const QString rightValue = configString(right);
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const int leftPosition = list.indexOf(leftValue);
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const int rightPosition = list.indexOf(rightValue);
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if (leftPosition < 0 || rightPosition < 0) {
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return QSortFilterProxyModel::lessThan(left, right);
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}
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return leftPosition < rightPosition;
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}
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bool EntityOrderProxyModel::dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent)
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{
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Q_D(EntityOrderProxyModel);
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if (!d->m_orderConfig.isValid()) {
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return QSortFilterProxyModel::dropMimeData(data, action, row, column, parent);
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}
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if (!data->hasFormat(QLatin1String("text/uri-list"))) {
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return QSortFilterProxyModel::dropMimeData(data, action, row, column, parent);
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}
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if (row == -1) {
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return QSortFilterProxyModel::dropMimeData(data, action, row, column, parent);
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}
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bool containsMove = false;
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const KUrl::List urls = KUrl::List::fromMimeData(data);
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Collection parentCol;
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if (parent.isValid()) {
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parentCol = parent.data(EntityTreeModel::CollectionRole).value<Collection>();
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} else {
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if (!hasChildren(parent)) {
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return QSortFilterProxyModel::dropMimeData(data, action, row, column, parent);
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}
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const QModelIndex targetIndex = index(0, column, parent);
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parentCol = targetIndex.data(EntityTreeModel::ParentCollectionRole).value<Collection>();
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}
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QStringList droppedList;
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foreach (const KUrl &url, urls) {
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Collection col = Collection::fromUrl(url);
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if (!col.isValid()) {
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Item item = Item::fromUrl(url);
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if (!item.isValid()) {
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continue;
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}
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const QModelIndexList list = EntityTreeModel::modelIndexesForItem(this, item);
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if (list.isEmpty()) {
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continue;
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}
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if (!containsMove && list.first().data(EntityTreeModel::ParentCollectionRole).value<Collection>().id() != parentCol.id()) {
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containsMove = true;
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}
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droppedList << configString(list.first());
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} else {
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const QModelIndex idx = EntityTreeModel::modelIndexForCollection(this, col);
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if (!idx.isValid()) {
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continue;
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}
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if (!containsMove && idx.data(EntityTreeModel::ParentCollectionRole).value<Collection>().id() != parentCol.id()) {
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containsMove = true;
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}
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droppedList << configString(idx);
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}
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}
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QStringList existingList;
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if (d->m_orderConfig.hasKey(QString::number(parentCol.id()))) {
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existingList = d->m_orderConfig.readEntry(QString::number(parentCol.id()), QStringList());
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} else {
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const int rowCount = this->rowCount(parent);
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for (int row = 0; row < rowCount; ++row) {
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static const int column = 0;
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const QModelIndex idx = this->index(row, column, parent);
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existingList.append(configString(idx));
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}
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}
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const int numberOfDroppedElement(droppedList.size());
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for (int i = 0; i < numberOfDroppedElement; ++i) {
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const QString droppedItem = droppedList.at(i);
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const int existingIndex = existingList.indexOf(droppedItem);
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existingList.removeAt(existingIndex);
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existingList.insert(row + i - (existingIndex > row ? 0 : 1), droppedList.at(i));
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}
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d->m_orderConfig.writeEntry(QString::number(parentCol.id()), existingList);
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if (containsMove) {
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bool result = QSortFilterProxyModel::dropMimeData(data, action, row, column, parent);
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invalidate();
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return result;
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}
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invalidate();
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return true;
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}
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QModelIndexList EntityOrderProxyModel::match(const QModelIndex &start, int role, const QVariant &value, int hits, Qt::MatchFlags flags) const
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{
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if (role < Qt::UserRole) {
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return QSortFilterProxyModel::match(start, role, value, hits, flags);
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}
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QModelIndexList list;
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QModelIndex proxyIndex;
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foreach (const QModelIndex &idx, sourceModel()->match(mapToSource(start), role, value, hits, flags)) {
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proxyIndex = mapFromSource(idx);
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if (proxyIndex.isValid()) {
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list << proxyIndex;
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}
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}
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return list;
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}
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void EntityOrderProxyModelPrivate::saveOrder(const QModelIndex &parent)
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{
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Q_Q(const EntityOrderProxyModel);
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int rowCount = q->rowCount(parent);
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if (rowCount == 0) {
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return;
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}
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static const int column = 0;
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QModelIndex childIndex = q->index(0, column, parent);
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QString parentKey = q->parentConfigString(childIndex);
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if (parentKey.isEmpty()) {
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return;
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}
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QStringList list;
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list << q->configString(childIndex);
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saveOrder(childIndex);
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for (int row = 1; row < rowCount; ++row) {
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childIndex = q->index(row, column, parent);
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list << q->configString(childIndex);
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saveOrder(childIndex);
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}
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m_orderConfig.writeEntry(parentKey, list);
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}
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QString EntityOrderProxyModel::parentConfigString(const QModelIndex &index) const
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{
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const Collection col = index.data(EntityTreeModel::ParentCollectionRole).value<Collection>();
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Q_ASSERT(col.isValid());
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if (!col.isValid()) {
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return QString();
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}
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return QString::number(col.id());
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}
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QString EntityOrderProxyModel::configString(const QModelIndex &index) const
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{
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Entity::Id eId = index.data(EntityTreeModel::ItemIdRole).toLongLong();
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if (eId != -1) {
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return QString::fromLatin1("i") + QString::number(eId);
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}
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eId = index.data(EntityTreeModel::CollectionIdRole).toLongLong();
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if (eId != -1) {
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return QString::fromLatin1("c") + QString::number(eId);
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}
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Q_ASSERT(!"Invalid entity");
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return QString();
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}
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void EntityOrderProxyModel::saveOrder()
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{
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Q_D(EntityOrderProxyModel);
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d->saveOrder(QModelIndex());
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d->m_orderConfig.sync();
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}
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void EntityOrderProxyModel::clearOrder(const QModelIndex &parent)
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{
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Q_D(EntityOrderProxyModel);
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const QString parentKey = parentConfigString(index(0, 0, parent));
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if (parentKey.isEmpty()) {
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return;
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}
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d->m_orderConfig.deleteEntry(parentKey);
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invalidate();
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}
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void EntityOrderProxyModel::clearTreeOrder()
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{
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Q_D(EntityOrderProxyModel);
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d->m_orderConfig.deleteGroup();
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invalidate();
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}
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