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#1830 AppFwk : Add TreeSelectionEditor and TreeSelectionQModel
This commit is contained in:
Magne Sjaastad
287
Fwk/AppFwk/cafUserInterface/cafPdmUiTreeSelectionQModel.cpp
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287
Fwk/AppFwk/cafUserInterface/cafPdmUiTreeSelectionQModel.cpp
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//##################################################################################################
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//
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// Custom Visualization Core library
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//
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// This library may be used under the terms of either the GNU General Public License or
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// the GNU Lesser General Public License as follows:
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//
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// GNU General Public License Usage
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// This library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU General Public License at <<http://www.gnu.org/licenses/gpl.html>>
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// for more details.
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//
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// GNU Lesser General Public License Usage
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation; either version 2.1 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU Lesser General Public License at <<http://www.gnu.org/licenses/lgpl-2.1.html>>
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// for more details.
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//
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//##################################################################################################
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#include "cafPdmUiTreeSelectionQModel.h"
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#include "cafPdmUiTreeViewModel.h"
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#include "cafPdmObject.h"
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#include <QAbstractItemModel>
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#include <QLabel>
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#include <QTreeView>
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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caf::PdmUiTreeSelectionQModel::PdmUiTreeSelectionQModel(QObject *parent /*= 0*/) : QAbstractItemModel(parent)
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{
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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void caf::PdmUiTreeSelectionQModel::setOptions(caf::PdmUiFieldEditorHandle* field, const QList<caf::PdmOptionItemInfo>& options)
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{
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m_uiFieldHandle = field;
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m_options = options;
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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Qt::ItemFlags caf::PdmUiTreeSelectionQModel::flags(const QModelIndex &index) const
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{
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return QAbstractItemModel::flags(index) | Qt::ItemIsUserCheckable;
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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QModelIndex caf::PdmUiTreeSelectionQModel::index(int row, int column, const QModelIndex &parent /*= QModelIndex()*/) const
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{
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if (!hasIndex(row, column, parent))
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return QModelIndex();
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if (parent.isValid())
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{
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int optionItemIndex = parent.internalId() + 1 + row;
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return createIndex(row, column, optionItemIndex);
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}
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else
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{
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int optionItemIndex = 0;
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int zeroLevelItemCount = 0;
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while (optionItemIndex < m_options.size())
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{
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if (m_options[optionItemIndex].level() == 0)
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{
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zeroLevelItemCount++;
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if (zeroLevelItemCount == row + 1)
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{
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return createIndex(row, column, optionItemIndex);
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}
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}
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optionItemIndex++;
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}
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}
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return QModelIndex();
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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int caf::PdmUiTreeSelectionQModel::columnCount(const QModelIndex &parent /*= QModelIndex()*/) const
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{
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return 1;
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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QModelIndex caf::PdmUiTreeSelectionQModel::parent(const QModelIndex &child) const
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{
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if (!child.isValid())
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return QModelIndex();
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int childOptionIndex = toOptionItemIndex(child);
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int childLevel = m_options[childOptionIndex].level();
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if (childLevel < 1)
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{
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return QModelIndex();
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}
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int parentOptionIndex = childOptionIndex - 1;
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while (parentOptionIndex > -1)
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{
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if (m_options[parentOptionIndex].level() == childLevel - 1)
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{
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int parentRow = 0;
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int parentLevelOptionIndex = parentOptionIndex - 1;
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while (parentLevelOptionIndex > -1 && m_options[parentLevelOptionIndex].level() > childLevel - 2)
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{
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if (m_options[parentLevelOptionIndex].level() == childLevel - 1)
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{
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parentRow++;
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}
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parentLevelOptionIndex--;
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}
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return createIndex(parentRow, 0, parentOptionIndex);
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}
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parentOptionIndex--;
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}
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CAF_ASSERT(false);
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return QModelIndex();
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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int caf::PdmUiTreeSelectionQModel::rowCount(const QModelIndex &parent /*= QModelIndex()*/) const
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{
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if (!parent.isValid())
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{
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int childCount = 0;
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for (auto o : m_options)
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{
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if (o.level() == 0)
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{
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childCount++;
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}
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}
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return childCount;
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}
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else
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{
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int childCount = 0;
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int parentOptionIndex = toOptionItemIndex(parent);
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int parentLevel = m_options[parentOptionIndex].level();
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int currentOptionIndex = parentOptionIndex + 1;
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while (currentOptionIndex < m_options.size() && m_options[currentOptionIndex].level() > parentLevel)
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{
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if (m_options[currentOptionIndex].level() == parentLevel + 1)
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{
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childCount++;
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}
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currentOptionIndex++;
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}
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return childCount;
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}
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CAF_ASSERT(false);
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return 0;
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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QVariant caf::PdmUiTreeSelectionQModel::data(const QModelIndex &index, int role /*= Qt::DisplayRole*/) const
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{
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CAF_ASSERT(index.internalId() < m_options.size());
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if (role == Qt::DisplayRole)
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{
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return m_options[toOptionItemIndex(index)].optionUiText();
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}
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else if (role == Qt::CheckStateRole)
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{
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QVariant fieldValue = m_uiFieldHandle->field()->uiValue();
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QList<QVariant> valuesSelectedInField = fieldValue.toList();
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for (QVariant v : valuesSelectedInField)
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{
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int indexInField = v.toInt();
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if (indexInField == toOptionItemIndex(index))
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{
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return Qt::Checked;
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}
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}
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return Qt::Unchecked;
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}
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return QVariant();
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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bool caf::PdmUiTreeSelectionQModel::setData(const QModelIndex &index, const QVariant &value, int role /*= Qt::EditRole*/)
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{
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if (role == Qt::CheckStateRole)
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{
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// TODO: wire up signal to editor
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/*
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QVariant fieldValue = m_uiFieldHandle->field()->uiValue();
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QList<QVariant> valuesSelectedInField = fieldValue.toList();
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bool isPresent = false;
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for (QVariant v : valuesSelectedInField)
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{
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unsigned int indexInField = v.toUInt();
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if (indexInField == toOptionItemIndex(index))
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{
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valuesSelectedInField.removeAll(v);
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isPresent = true;
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}
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}
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if (!isPresent)
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{
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// Use unsigned int as all values communicated from UI to field is assumed to be unsigned int
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unsigned int value = static_cast<unsigned int>(toOptionItemIndex(index));
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valuesSelectedInField.push_back(QVariant(value));
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}
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m_uiFieldHandle->setValueToField(valuesSelectedInField);
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*/
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return true;
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}
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return false;
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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int caf::PdmUiTreeSelectionQModel::toOptionItemIndex(const QModelIndex& modelIndex)
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{
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CAF_ASSERT(modelIndex.isValid());
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return modelIndex.internalId();
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}
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