300 lines
12 KiB
C#
300 lines
12 KiB
C#
// Mozilla Public License 2.0
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// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// Copyright (C) LibreHardwareMonitor and Contributors
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// All Rights Reserved
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using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Linq;
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using System.Windows.Forms;
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using LibreHardwareMonitor.Hardware;
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using LibreHardwareMonitor.Utilities;
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using OxyPlot;
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using OxyPlot.Axes;
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using OxyPlot.WindowsForms;
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using OxyPlot.Series;
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namespace LibreHardwareMonitor.UI
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{
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public class PlotPanel : UserControl
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{
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private readonly PersistentSettings _settings;
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private readonly UnitManager _unitManager;
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private readonly PlotView _plot;
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private readonly PlotModel _model;
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private readonly TimeSpanAxis _timeAxis = new TimeSpanAxis();
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private readonly SortedDictionary<SensorType, LinearAxis> _axes = new SortedDictionary<SensorType, LinearAxis>();
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private UserOption _stackedAxes;
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private DateTime _now;
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private float _dpiX;
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private float _dpiY;
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private double _dpiXScale = 1;
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private double _dpiYScale = 1;
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public PlotPanel(PersistentSettings settings, UnitManager unitManager)
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{
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_settings = settings;
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_unitManager = unitManager;
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SetDpi();
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_model = CreatePlotModel();
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_plot = new PlotView { Dock = DockStyle.Fill, Model = _model, BackColor = Color.White, ContextMenu = CreateMenu() };
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UpdateAxesPosition();
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SuspendLayout();
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Controls.Add(_plot);
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ResumeLayout(true);
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}
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public void SetCurrentSettings()
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{
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_settings.SetValue("plotPanel.MinTimeSpan", (float)_timeAxis.ActualMinimum);
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_settings.SetValue("plotPanel.MaxTimeSpan", (float)_timeAxis.ActualMaximum);
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foreach (LinearAxis axis in _axes.Values)
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{
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_settings.SetValue("plotPanel.Min" + axis.Key, (float)axis.ActualMinimum);
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_settings.SetValue("plotPanel.Max" + axis.Key, (float)axis.ActualMaximum);
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}
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}
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private ContextMenu CreateMenu()
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{
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ContextMenu menu = new ContextMenu();
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MenuItem stackedAxesMenuItem = new MenuItem("Stacked Axes");
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_stackedAxes = new UserOption("stackedAxes", true, stackedAxesMenuItem, _settings);
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_stackedAxes.Changed += (sender, e) =>
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{
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UpdateAxesPosition();
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InvalidatePlot();
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};
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menu.MenuItems.Add(stackedAxesMenuItem);
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MenuItem timeWindow = new MenuItem("Time Window");
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MenuItem[] timeWindowMenuItems =
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{ new MenuItem("Auto", (s, e) => { _timeAxis.Zoom(0, double.NaN); InvalidatePlot(); }),
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new MenuItem("5 min", (s, e) => { _timeAxis.Zoom(0, 5 * 60); InvalidatePlot(); }),
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new MenuItem("10 min", (s, e) => { _timeAxis.Zoom(0, 10 * 60); InvalidatePlot(); }),
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new MenuItem("20 min", (s, e) => { _timeAxis.Zoom(0, 20 * 60); InvalidatePlot(); }),
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new MenuItem("30 min", (s, e) => { _timeAxis.Zoom(0, 30 * 60); InvalidatePlot(); }),
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new MenuItem("45 min", (s, e) => { _timeAxis.Zoom(0, 45 * 60); InvalidatePlot(); }),
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new MenuItem("1 h", (s, e) => { _timeAxis.Zoom(0, 60 * 60); InvalidatePlot(); }),
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new MenuItem("1.5 h", (s, e) => { _timeAxis.Zoom(0, 1.5 * 60 * 60); InvalidatePlot(); }),
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new MenuItem("2 h", (s, e) => { _timeAxis.Zoom(0, 2 * 60 * 60); InvalidatePlot(); }),
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new MenuItem("3 h", (s, e) => { _timeAxis.Zoom(0, 3 * 60 * 60); InvalidatePlot(); }),
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new MenuItem("6 h", (s, e) => { _timeAxis.Zoom(0, 6 * 60 * 60); InvalidatePlot(); }),
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new MenuItem("12 h", (s, e) => { _timeAxis.Zoom(0, 12 * 60 * 60); InvalidatePlot(); }),
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new MenuItem("24 h", (s, e) => { _timeAxis.Zoom(0, 24 * 60 * 60); InvalidatePlot(); }) };
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foreach (MenuItem mi in timeWindowMenuItems)
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timeWindow.MenuItems.Add(mi);
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menu.MenuItems.Add(timeWindow);
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return menu;
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}
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private PlotModel CreatePlotModel()
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{
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_timeAxis.Position = AxisPosition.Bottom;
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_timeAxis.MajorGridlineStyle = LineStyle.Solid;
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_timeAxis.MajorGridlineThickness = 1;
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_timeAxis.MajorGridlineColor = OxyColor.FromRgb(192, 192, 192);
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_timeAxis.MinorGridlineStyle = LineStyle.Solid;
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_timeAxis.MinorGridlineThickness = 1;
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_timeAxis.MinorGridlineColor = OxyColor.FromRgb(232, 232, 232);
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_timeAxis.StartPosition = 1;
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_timeAxis.EndPosition = 0;
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_timeAxis.MinimumPadding = 0;
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_timeAxis.MaximumPadding = 0;
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_timeAxis.AbsoluteMinimum = 0;
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_timeAxis.Minimum = 0;
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_timeAxis.AbsoluteMaximum = 24 * 60 * 60;
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_timeAxis.Zoom(
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_settings.GetValue("plotPanel.MinTimeSpan", 0.0f),
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_settings.GetValue("plotPanel.MaxTimeSpan", 10.0f * 60));
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_timeAxis.StringFormat = "h:mm";
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var units = new Dictionary<SensorType, string>
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{
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{ SensorType.Voltage, "V" },
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{ SensorType.Clock, "MHz" },
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{ SensorType.Temperature, "°C" },
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{ SensorType.Load, "%" },
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{ SensorType.Fan, "RPM" },
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{ SensorType.Flow, "L/h" },
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{ SensorType.Control, "%" },
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{ SensorType.Level, "%" },
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{ SensorType.Factor, "1" },
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{ SensorType.Power, "W" },
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{ SensorType.Data, "GB" },
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{ SensorType.Frequency, "Hz" }
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};
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foreach (SensorType type in Enum.GetValues(typeof(SensorType)))
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{
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var axis = new LinearAxis
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{
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Position = AxisPosition.Left,
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MajorGridlineStyle = LineStyle.Solid,
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MajorGridlineThickness = 1,
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MajorGridlineColor = _timeAxis.MajorGridlineColor,
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MinorGridlineStyle = LineStyle.Solid,
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MinorGridlineThickness = 1,
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MinorGridlineColor = _timeAxis.MinorGridlineColor,
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AxislineStyle = LineStyle.Solid,
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Title = type.ToString(),
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Key = type.ToString()
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};
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axis.Zoom(_settings.GetValue("plotPanel.Min" + axis.Key, float.NaN), _settings.GetValue("plotPanel.Max" + axis.Key, float.NaN));
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if (units.ContainsKey(type))
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axis.Unit = units[type];
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_axes.Add(type, axis);
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}
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var model = new ScaledPlotModel(_dpiXScale, _dpiYScale);
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model.Axes.Add(_timeAxis);
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foreach (LinearAxis axis in _axes.Values)
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model.Axes.Add(axis);
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model.PlotMargins = new OxyThickness(0);
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model.IsLegendVisible = false;
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return model;
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}
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private void SetDpi()
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{
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// https://msdn.microsoft.com/en-us/library/windows/desktop/dn469266(v=vs.85).aspx
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const int defaultDpi = 96;
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Graphics g = CreateGraphics();
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try
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{
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_dpiX = g.DpiX;
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_dpiY = g.DpiY;
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}
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finally
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{
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g.Dispose();
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}
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if (_dpiX > 0)
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_dpiXScale = _dpiX / defaultDpi;
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if (_dpiY > 0)
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_dpiYScale = _dpiY / defaultDpi;
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}
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public void SetSensors(List<ISensor> sensors, IDictionary<ISensor, Color> colors)
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{
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_model.Series.Clear();
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var types = new System.Collections.Generic.HashSet<SensorType>();
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Func<SensorType, SensorValue, DataPoint> createDataPoint = (SensorType type, SensorValue value) =>
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{
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float displayedValue;
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if (type == SensorType.Temperature && _unitManager.TemperatureUnit == TemperatureUnit.Fahrenheit)
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{
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displayedValue = UnitManager.CelsiusToFahrenheit(value.Value).Value;
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}
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else
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{
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displayedValue = value.Value;
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}
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return new DataPoint((_now - value.Time).TotalSeconds, displayedValue);
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};
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foreach (ISensor sensor in sensors)
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{
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var series = new LineSeries();
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series.ItemsSource = sensor.Values.Select(value => createDataPoint(sensor.SensorType, value));
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series.Color = colors[sensor].ToOxyColor();
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series.StrokeThickness = 1;
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series.YAxisKey = _axes[sensor.SensorType].Key;
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series.Title = sensor.Hardware.Name + " " + sensor.Name;
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_model.Series.Add(series);
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types.Add(sensor.SensorType);
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}
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foreach (KeyValuePair<SensorType, LinearAxis> pair in _axes.Reverse())
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{
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LinearAxis axis = pair.Value;
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SensorType type = pair.Key;
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axis.IsAxisVisible = types.Contains(type);
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}
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UpdateAxesPosition();
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InvalidatePlot();
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}
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private void UpdateAxesPosition()
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{
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if (_stackedAxes.Value)
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{
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int count = _axes.Values.Count(axis => axis.IsAxisVisible);
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double start = 0.0;
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foreach (KeyValuePair<SensorType, LinearAxis> pair in _axes.Reverse())
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{
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LinearAxis axis = pair.Value;
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axis.StartPosition = start;
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double delta = axis.IsAxisVisible ? 1.0 / count : 0;
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start += delta;
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axis.EndPosition = start;
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axis.PositionTier = 0;
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axis.MajorGridlineStyle = LineStyle.Solid;
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axis.MinorGridlineStyle = LineStyle.Solid;
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}
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}
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else
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{
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int tier = 0;
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foreach (KeyValuePair<SensorType, LinearAxis> pair in _axes.Reverse())
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{
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LinearAxis axis = pair.Value;
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if (axis.IsAxisVisible)
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{
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axis.StartPosition = 0;
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axis.EndPosition = 1;
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axis.PositionTier = tier;
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tier++;
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}
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else
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{
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axis.StartPosition = 0;
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axis.EndPosition = 0;
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axis.PositionTier = 0;
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}
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axis.MajorGridlineStyle = LineStyle.None;
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axis.MinorGridlineStyle = LineStyle.None;
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}
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}
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}
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public void InvalidatePlot()
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{
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_now = DateTime.UtcNow;
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if (_axes != null)
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{
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foreach (KeyValuePair<SensorType, LinearAxis> pair in _axes)
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{
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LinearAxis axis = pair.Value;
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SensorType type = pair.Key;
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if (type == SensorType.Temperature)
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axis.Unit = _unitManager.TemperatureUnit == TemperatureUnit.Celsius ? "°C" : "°F";
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}
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}
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_plot?.InvalidatePlot(true);
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}
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}
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}
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