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/*
ViewFilter.cpp
This file is part of Charm, a task-based time tracking application.
Copyright (C) 2007-2018 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com
Author: Mirko Boehm <mirko.boehm@kdab.com>
Author: Frank Osterfeld <frank.osterfeld@kdab.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. If not, see <http://www.gnu.org/licenses/>.
*/
#include "ViewFilter.h"
#include "Core/CharmDataModel.h"
#include "ViewHelpers.h"
ViewFilter::ViewFilter(CharmDataModel *model, QObject *parent)
: QSortFilterProxyModel(parent)
, m_model(model)
{
setSourceModel(&m_model);
// we filter for the task name column
setFilterKeyColumn(Column_TaskId);
// setFilterKeyColumn( -1 );
setFilterCaseSensitivity(Qt::CaseInsensitive);
// relay signals to the view:
connect(&m_model, &TaskModelAdapter::eventActivationNotice,
this, &ViewFilter::eventActivationNotice);
connect(&m_model, &TaskModelAdapter::eventDeactivationNotice,
this, &ViewFilter::eventDeactivationNotice);
sort(Column_TaskId);
}
ViewFilter::~ViewFilter()
{
}
Task ViewFilter::taskForIndex(const QModelIndex &index) const
{
return m_model.taskForIndex(mapToSource(index));
}
QModelIndex ViewFilter::indexForTaskId(TaskId id) const
{
return mapFromSource(m_model.indexForTaskId(id));
}
bool ViewFilter::taskIsActive(const Task &task) const
{
return m_model.taskIsActive(task);
}
bool ViewFilter::taskHasChildren(const Task &task) const
{
return m_model.taskHasChildren(task);
}
void ViewFilter::prefilteringModeChanged()
{
invalidate();
}
bool ViewFilter::filterAcceptsRow(int source_row, const QModelIndex &parent) const
{
// by default, QSortFilterProxyModel only accepts row where already the parents where accepted
bool acceptedByFilter = QSortFilterProxyModel::filterAcceptsRow(source_row, parent);
// in our case, this is not what we want, we want parents to be
// accepted if any of their children are accepted (this is a
// recursive call, and could possibly be slow):
const QModelIndex index(m_model.index(source_row, 0, parent));
if (!index.isValid()) return acceptedByFilter;
int rowCount = m_model.rowCount(index);
for (int i = 0; i < rowCount; ++i) {
if (filterAcceptsRow(i, index)) {
acceptedByFilter = true;
break;
}
}
bool accepted = acceptedByFilter;
const Task task = m_model.taskForIndex(index);
switch (Configuration::instance().taskPrefilteringMode) {
case Configuration::TaskPrefilter_ShowAll:
break;
case Configuration::TaskPrefilter_CurrentOnly:
{
const bool ok = (task.isCurrentlyValid() || checkChildren(task, HaveValidChild));
accepted &= ok;
break;
}
case Configuration::TaskPrefilter_SubscribedOnly:
{
const bool ok = (task.subscribed() || checkChildren(task, HaveSubscribedChild));
accepted &= ok;
break;
}
case Configuration::TaskPrefilter_SubscribedAndCurrentOnly:
accepted
&= ((task.subscribed()
|| checkChildren(task,
HaveSubscribedChild))
&& (task.isCurrentlyValid() || checkChildren(task, HaveValidChild)));
break;
default:
break;
}
return accepted;
}
bool ViewFilter::filterAcceptsColumn(int, const QModelIndex &) const
{
return true;
}
bool ViewFilter::taskIdExists(TaskId taskId) const
{
return m_model.taskIdExists(taskId);
}
bool ViewFilter::checkChildren(Task task, CheckFor checkFor) const
{
if (taskHasChildren(task)) {
const TaskList taskList = m_model.children(task);
for (const Task &taskChild : taskList) {
if (checkFor == HaveSubscribedChild && taskChild.subscribed()) {
return true;
} else if (checkFor == HaveValidChild && taskChild.isCurrentlyValid()) {
return true;
}
}
}
return false;
}
void ViewFilter::commitCommand(CharmCommand *command)
{ // we do not emit signals, we are the relay (since we are a proxy):
m_model.commitCommand(command);
}
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