File indexing completed on 2024-11-17 04:49:34

0001 /*
0002  * Copyright (c) 2019 Alexander Potashev <aspotashev@gmail.com>
0003  *
0004  * This program is free software; you can redistribute it and/or
0005  * modify it under the terms of the GNU General Public License as
0006  * published by the Free Software Foundation; either version 2 of
0007  * the License or (at your option) version 3 or any later version
0008  * accepted by the membership of KDE e.V. (or its successor approved
0009  * by the membership of KDE e.V.), which shall act as a proxy
0010  * defined in Section 14 of version 3 of the license.
0011  *
0012  * This program is distributed in the hope that it will be useful,
0013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
0014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
0015  * GNU General Public License for more details.
0016  *
0017  * You should have received a copy of the GNU General Public License
0018  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
0019  */
0020 
0021 #include "tasksmodelitem.h"
0022 
0023 #include "tasksmodel.h"
0024 
0025 TasksModelItem *TasksModelItem::takeChild(int index)
0026 {
0027     if (index < 0 || index >= m_children.count()) {
0028         return nullptr;
0029     }
0030 
0031     m_model->beginRemoveRows(m_model->index(this, 0), index, index);
0032 
0033     TasksModelItem *item = m_children.takeAt(index);
0034     item->m_parent = nullptr;
0035 
0036     m_model->endRemoveRows();
0037     return item;
0038 }
0039 
0040 int TasksModelItem::indexOfChild(TasksModelItem *child) const
0041 {
0042     return m_children.indexOf(child);
0043 }
0044 
0045 void TasksModelItem::insertChild(int index, TasksModelItem *child)
0046 {
0047     if (index < 0 || index > m_children.count() || child == nullptr) {
0048         return;
0049     }
0050 
0051     if (m_model) {
0052         if (m_model->m_rootItem == this) {
0053             child->m_parent = nullptr;
0054         } else {
0055             child->m_parent = this;
0056         }
0057 
0058         m_model->beginInsertRows(child->m_parent ? m_model->index(child->m_parent, 0) : QModelIndex(), index, index);
0059         m_children.insert(index, child);
0060         m_model->endInsertRows();
0061     } else {
0062         child->m_parent = this;
0063         m_children.insert(index, child);
0064     }
0065 }
0066 
0067 QVariant TasksModelItem::data(int /*unused*/, int /*unused*/) const
0068 {
0069     return {};
0070 }
0071 
0072 TasksModelItem *TasksModelItem::parent() const
0073 {
0074     return m_parent;
0075 }
0076 
0077 TasksModelItem *TasksModelItem::child(int index) const
0078 {
0079     if (index < 0 || index >= m_children.size()) {
0080         return nullptr;
0081     }
0082     return m_children.at(index);
0083 }
0084 
0085 int TasksModelItem::childCount() const
0086 {
0087     return m_children.count();
0088 }
0089 
0090 TasksModelItem::TasksModelItem(TasksModel *model, TasksModelItem *parent)
0091     : m_model(model)
0092     , m_parent(parent)
0093 {
0094 }
0095 
0096 void TasksModelItem::addChild(TasksModelItem *child)
0097 {
0098     if (child) {
0099         insertChild(m_children.count(), child);
0100     }
0101 }
0102 
0103 void TasksModelItem::disconnectFromParent()
0104 {
0105     TasksModelItem *parent = m_parent ? m_parent : m_model->m_rootItem;
0106 
0107     int i = parent->m_children.indexOf(this);
0108     if (i >= 0) {
0109         m_model->beginRemoveRows(m_model->index(parent, 0), i, i);
0110 
0111         // users _could_ do changes when connected to rowsAboutToBeRemoved,
0112         // so we check again to make sure 'i' is valid
0113         if (!parent->m_children.isEmpty() && parent->m_children.at(i) == this) {
0114             parent->m_children.takeAt(i);
0115         }
0116 
0117         m_model->endRemoveRows();
0118     }
0119 }
0120 
0121 void TasksModelItem::invalidateRunningState()
0122 {
0123     // invalidate icon in column "Session Time"
0124     QModelIndex index = m_model->index(this, 1);
0125     Q_EMIT m_model->dataChanged(index, index, QVector<int>{Qt::DecorationRole});
0126 }
0127 
0128 void TasksModelItem::invalidateCompletedState()
0129 {
0130     // invalidate icon in column "Task Name"
0131     QModelIndex index = m_model->index(this, 0);
0132     Q_EMIT m_model->dataChanged(index, index, QVector<int>{Qt::DecorationRole});
0133 }