File indexing completed on 2024-05-05 16:16:40

 /*
  * This file is part of KQuickCharts
  * SPDX-FileCopyrightText: 2019 Arjen Hiemstra <ahiemstra@heimr.nl>
  *
  * SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
  */
 
 #include "ChartAxisSource.h"
 
 #include <QDebug>
 #include <QVariant>
 
 #include "XYChart.h"
 
 ChartAxisSource::ChartAxisSource(QObject *parent)
     : ChartDataSource(parent)
 {
     connect(this, &ChartAxisSource::itemCountChanged, this, &ChartAxisSource::dataChanged);
     connect(this, &ChartAxisSource::chartChanged, this, &ChartAxisSource::dataChanged);
     connect(this, &ChartAxisSource::axisChanged, this, &ChartAxisSource::dataChanged);
 }
 
 QVariant ChartAxisSource::item(int index) const
 {
     if (!m_chart || index < 0 || index > m_itemCount) {
         return {};
     }
 
     auto range = m_chart->computedRange();
     if (m_axis == Axis::XAxis) {
         return range.startX + (range.distanceX / (m_itemCount - 1)) * index;
     } else {
         return range.startY + (range.distanceY / (m_itemCount - 1)) * index;
     }
 }
 
 QVariant ChartAxisSource::minimum() const
 {
     if (!m_chart) {
         return {};
     }
 
     if (m_axis == Axis::XAxis) {
         return m_chart->computedRange().startX;
     } else {
         return m_chart->computedRange().startY;
     }
 }
 
 QVariant ChartAxisSource::maximum() const
 {
     if (!m_chart) {
         return {};
     }
 
     if (m_axis == Axis::XAxis) {
         return m_chart->computedRange().endX;
     } else {
         return m_chart->computedRange().endY;
     }
 }
 
 XYChart *ChartAxisSource::chart() const
 {
     return m_chart;
 }
 
 void ChartAxisSource::setChart(XYChart *newChart)
 {
     if (newChart == m_chart) {
         return;
     }
 
     if (m_chart) {
         disconnect(m_chart, &XYChart::computedRangeChanged, this, &ChartAxisSource::dataChanged);
     }
 
     m_chart = newChart;
     if (m_chart) {
         connect(m_chart, &XYChart::computedRangeChanged, this, &ChartAxisSource::dataChanged);
     }
     Q_EMIT chartChanged();
 }
 
 ChartAxisSource::Axis ChartAxisSource::axis() const
 {
     return m_axis;
 }
 
 void ChartAxisSource::setAxis(ChartAxisSource::Axis newAxis)
 {
     if (newAxis == m_axis) {
         return;
     }
 
     m_axis = newAxis;
     Q_EMIT axisChanged();
 }
 
 int ChartAxisSource::itemCount() const
 {
     return m_itemCount;
 }
 
 void ChartAxisSource::setItemCount(int newItemCount)
 {
     if (newItemCount == m_itemCount) {
         return;
     }
 
     m_itemCount = newItemCount;
     Q_EMIT itemCountChanged();
 }
 
 #include "moc_ChartAxisSource.cpp"