customtablemodel.cpp Example File

modeldata/customtablemodel.cpp
/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the Qt Charts module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:GPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3 or (at your option) any later version ** approved by the KDE Free Qt Foundation. The licenses are as published by ** the Free Software Foundation and appearing in the file LICENSE.GPL3 ** included in the packaging of this file. Please review the following ** information to ensure the GNU General Public License requirements will ** be met: https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/
#include "customtablemodel.h" #include <QtCore/QVector> #include <QtCore/QTime> #include <QtCore/QRect> #include <QtGui/QColor> CustomTableModel::CustomTableModel(QObject *parent) : QAbstractTableModel(parent) { qsrand(QTime(0, 0, 0).secsTo(QTime::currentTime())); m_columnCount = 4; m_rowCount = 15; // m_data for (int i = 0; i < m_rowCount; i++) { QVector<qreal>* dataVec = new QVector<qreal>(m_columnCount); for (int k = 0; k < dataVec->size(); k++) { if (k % 2 == 0) dataVec->replace(k, i * 50 + qrand() % 20); else dataVec->replace(k, qrand() % 100); } m_data.append(dataVec); } } int CustomTableModel::rowCount(const QModelIndex &parent) const { Q_UNUSED(parent) return m_data.count(); } int CustomTableModel::columnCount(const QModelIndex &parent) const { Q_UNUSED(parent) return m_columnCount; } QVariant CustomTableModel::headerData(int section, Qt::Orientation orientation, int role) const { if (role != Qt::DisplayRole) return QVariant(); if (orientation == Qt::Horizontal) { if (section % 2 == 0) return "x"; else return "y"; } else { return QString("%1").arg(section + 1); } } QVariant CustomTableModel::data(const QModelIndex &index, int role) const { if (role == Qt::DisplayRole) { return m_data[index.row()]->at(index.column()); } else if (role == Qt::EditRole) { return m_data[index.row()]->at(index.column()); } else if (role == Qt::BackgroundRole) { for (const QRect &rect : m_mapping) { if (rect.contains(index.column(), index.row())) return QColor(m_mapping.key(rect)); } // cell not mapped return white color return QColor(Qt::white); } return QVariant(); } bool CustomTableModel::setData(const QModelIndex &index, const QVariant &value, int role) { if (index.isValid() && role == Qt::EditRole) { m_data[index.row()]->replace(index.column(), value.toDouble()); emit dataChanged(index, index); return true; } return false; } Qt::ItemFlags CustomTableModel::flags(const QModelIndex &index) const { return QAbstractItemModel::flags(index) | Qt::ItemIsEditable; } void CustomTableModel::addMapping(QString color, QRect area) { m_mapping.insertMulti(color, area); }