Revision control
++ // Copyright (C) 2025 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #include "randomGenerator.h"
++ #include <iterator>
++
++ RandomGenerator::RandomGenerator(QObject *parent)
++ : QObject(parent)
++ , m_rowCount(0)
++ {}
++
++ int RandomGenerator::rowCount() const
++ {
++ return m_rowCount;
++ }
++
++ void RandomGenerator::setRowCount(int rowCount)
++ {
++ if (m_rowCount == rowCount)
++ return;
++
++ m_rowCount = rowCount;
++ emit rowCountChanged(rowCount);
++ generateCaches();
++ }
++
++ int RandomGenerator::activeSeriesIndex() const
++ {
++ return m_activeSeriesIndex;
++ }
++
++ void RandomGenerator::setActiveSeriesIndex(int index)
++ {
++ if (m_activeSeriesIndex == index)
++ return;
++
++ m_activeSeriesIndex = index;
++ emit activeSeriesIndexChanged(index);
++ nextCache();
++ }
++
++ void RandomGenerator::nextCache()
++ {
++ m_currentCache = (m_currentCache + 1) % 60;
++
++ if (m_activeSeriesIndex == 0)
++ updateSurface3D();
++ else if (m_activeSeriesIndex < 3)
++ updateScatter3D(m_activeSeriesIndex);
++ else
++ update2DGraph(m_activeSeriesIndex);
++ }
++
++ void RandomGenerator::generateCaches()
++ {
++ m_data.clear();
++ m_data.resize(m_cacheCount);
++ for (int i = 0; i < m_cacheCount; i++) {
++ QList<qreal> &array = m_data[i];
++ array.reserve(m_rowCount);
++ for (int j = 0; j < m_rowCount; j++) {
++ qreal y = float(QRandomGenerator::global()->bounded(100)) / (100.0);
++ array.append(y);
++ }
++ }
++ }
++
++ void RandomGenerator::clearCaches()
++ {
++ for (auto data : m_data) {
++ data.clear();
++ }
++ m_data.clear();
++ }
++
++ void RandomGenerator::updateSurface3D()
++ {
++ if (!m_surface3D)
++ return;
++
++ QSurfaceDataArray dataArray;
++ dataArray.resize(m_rowCount);
++ for (int i = 0; i < m_rowCount; i++) {
++ //append two points
++ QVector3D pos = QVector3D(i, m_data[m_currentCache][i], 0);
++ dataArray[i].append(QSurfaceDataItem(pos));
++ }
++
++ m_surface3D->dataProxy()->resetArray(dataArray);
++ }
++
++ void RandomGenerator::updateScatter3D(int index)
++ {
++ QScatter3DSeries *series = nullptr;
++ if (index == 1)
++ series = m_scatter3D;
++ else
++ series = m_spline3D;
++
++ if (!series)
++ return;
++
++ QScatterDataArray dataArray;
++ dataArray.reserve(m_rowCount);
++ for (int i = 0; i < m_rowCount; i++) {
++ QVector3D pos = QVector3D(i, m_data[m_currentCache][i], 0);
++ dataArray.append(QScatterDataItem(pos));
++ }
++
++ series->dataProxy()->resetArray(dataArray);
++ }
++
++ void RandomGenerator::update2DGraph(int index)
++ {
++ QXYSeries *series = nullptr;
++ if (index == 3)
++ series = m_line2D;
++ else if (index == 4)
++ series = m_spline2D;
++ else
++ series = m_scatter2D;
++
++ if (!series)
++ return;
++
++ series->clear();
++ for (int i = 0; i < m_rowCount; i++) {
++ QPointF point = QPointF(i, m_data[m_currentCache][i]);
++ series->append(point);
++ }
++ }