mirror of https://github.com/qt/qtgraphs.git
36 lines
943 B
C++
36 lines
943 B
C++
// Copyright (C) 2023 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
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#include "custombarseries.h"
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#include <QRandomGenerator>
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// Data contains 3 sets
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const int SET_COUNT = 3;
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CustomBarSeries::CustomBarSeries(QBarSeries *parent)
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: QBarSeries{ parent }
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{
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// Initialize bar sets
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for (int i = 0; i < SET_COUNT; i++) {
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m_sets.append(new QBarSet(this));
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m_sets[i]->append({0, 0});
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append(m_sets[i]);
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}
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updateData();
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// Update data with a timer
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connect(&m_updateTimer, &QTimer::timeout, this, &CustomBarSeries::updateData);
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m_updateTimer.start(2000);
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}
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void CustomBarSeries::updateData()
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{
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const int maxValue = 30;
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for (int i = 0; i < SET_COUNT; i++) {
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m_sets[i]->replace(0, QRandomGenerator::global()->generateDouble() * maxValue);
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m_sets[i]->replace(1, QRandomGenerator::global()->generateDouble() * maxValue);
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}
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}
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