Files
ReLibreHardwareMonitor/LibreHardwareMonitor.Windows.WinUI/MainWindow.cs
T
JMR-dev f9edc1dc64 Fixes applied (14 of 15 findings — see note on R5)
Concurrency crashes
  - H1 HardwareMonitorService.RebuildTree now builds the tree under _updateLock, so it can't enumerate a hardware's _active HashSet while the update loop mutates it.
  - A1 AppSettings now guards every dictionary read/write (and snapshots in Save) with a lock — safe under concurrent access from the parallel discovery threads.
  - R2 Plumbed that same lock (HardwareMonitorService.SensorReadLock) into RemoteWebServer and wrapped the Prometheus sensor.Values enumeration with it.
  - L1 Computer — refactored Add into AddCore, which performs the cancellation/enabled re-check and the _groups insertion atomically under _lock. A deferred task can
  no longer add (and leak) a group after Close() drained the list; if it loses the race it closes the group instead.
  - M1 UpdateTimer_Tick now bails before/after the await when _isShuttingDown is set in MainWindow_Closed, so an in-flight tick won't touch the disposed
  view-model/Computer.

  Broken behavior
  - T1 Tray callback now decodes NOTIFYICON_VERSION_4 correctly (message = LOWORD(lParam), icon id = HIWORD(lParam)) — right-click menu and double-click work again.
  - M2 A transient update exception no longer calls _timer.Stop(); the loop keeps running.
  - H2 Newly discovered (deferred) storage devices get the current ForceDriveWakeup setting applied in HardwareChanged.
  - V2 Sensor items carry a parent reference; toggling IsVisible recomputes the parent group's visibility, so no empty group headers. (Strengthened the existing test
  that had skipped this assertion.)
  - H3 Tree-rebuild coalescing now uses a dirty flag with a re-check, so a change arriving during a rebuild isn't lost.
  - R4 Web routing matches endpoints exactly on the query-stripped path (Url.AbsolutePath), so static assets like metrics.html aren't hijacked.
  - L8 IntelCpu.Update skips the bus/core-clock math while TimeStampCounterFrequency is still 0 (deferred-TSC window), so clocks keep their prior value instead of
  reporting 0 MHz.
  - V1 Existing plot series keep their assigned color; only an explicit user pen color updates them (no per-tick color shifting).
  - M3 Runtime errors write to a dedicated runtime.log (once), instead of overwriting the shared startup.log.
  - T2 CreateSensorIcon returns IntPtr.Zero on DIB failure instead of the shared main-icon handle (which callers DestroyIcon).

  I also set _isOpen = false in HardwareMonitorService.Dispose so the rebuild guard actually holds during shutdown (the latent after-close-rebuild issue adjacent to
  H3
2026-05-30 22:56:25 -05:00

1803 lines
66 KiB
C#

// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
// Copyright (C) LibreHardwareMonitor and Contributors.
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Runtime.InteropServices;
using System.Threading.Tasks;
using LibreHardwareMonitor.Hardware;
using LibreHardwareMonitor.Windows.WinUI.Services;
using LibreHardwareMonitor.Windows.WinUI.ViewModels;
using Microsoft.UI;
using Microsoft.UI.Dispatching;
using Microsoft.UI.Windowing;
using Microsoft.UI.Xaml;
using Microsoft.UI.Xaml.Controls;
using Microsoft.UI.Xaml.Controls.Primitives;
using Microsoft.UI.Xaml.Data;
using Microsoft.UI.Xaml.Input;
using Microsoft.UI.Xaml.Markup;
using Microsoft.UI.Xaml.Media;
using Microsoft.UI.Xaml.Shapes;
using Windows.Graphics;
using Windows.Storage;
using Windows.Storage.Pickers;
using WinRT.Interop;
using IOPath = System.IO.Path;
namespace LibreHardwareMonitor.Windows.WinUI;
public sealed class MainWindow : Window
{
private static readonly TimeSpan DeviceColumnWidthSettleDelay = TimeSpan.FromSeconds(5);
private const double DefaultSensorColumnWidth = 320;
private const double MaximumSensorColumnWidth = 4096;
private const double MinimumSensorColumnWidth = 120;
private const double SensorColumnPadding = 72;
private const double SensorTreeIndentWidth = 20;
private const string DeviceColumnWidthSetting = "winui.deviceColumnWidth";
private const double ValueColumnPadding = 18;
private const int MaxTextMeasurementCacheEntries = 4096;
private readonly AppWindow _appWindow;
private readonly Grid _contentGrid;
private readonly DispatcherQueueTimer _deviceColumnWidthSettleTimer;
private readonly DispatcherQueueTimer _timer;
private readonly Canvas _plotCanvas;
private readonly Grid _plotPane;
private readonly Grid _rootGrid;
private readonly TreeView _sensorTree;
private readonly Grid _sensorPane;
private readonly WinUiStartupTrace? _startupTrace;
private readonly TrayIconService _trayIconService;
private readonly Dictionary<(string Text, bool Bold), double> _textMeasurementCache = new();
private readonly List<Grid> _sensorRowGrids = [];
private readonly double[] _sensorColumnWidths = [DefaultSensorColumnWidth, 120, 120, 120];
private PlotWindow? _plotWindow;
private Grid? _sensorHeader;
private SensorGadgetWindow? _gadgetWindow;
private double _stableDeviceColumnWidth = DefaultSensorColumnWidth;
private bool _deviceColumnWidthSettled;
private bool _firstLayoutRecorded;
private bool _isUpdating;
private bool _initialWindowStateApplied;
private bool _isClosingForExit;
private bool _isShuttingDown;
private bool _runtimeErrorLogged;
private bool _isMainWindowHidden;
private bool _isMonitoringStarted;
private bool _startupCompletionRequested;
private bool _startupCompleteRecorded;
private bool _sensorTreeRebuildQueued;
private bool _sensorColumnWidthUpdateQueued;
public MainWindow() : this(null)
{
}
internal MainWindow(WinUiStartupTrace? startupTrace)
{
_startupTrace = startupTrace;
_startupTrace?.Mark("MainWindow.Constructor.Begin");
AppSettings settings = MeasureStartup("MainWindow.LoadSettings", AppSettings.LoadDefault);
ViewModel = MeasureStartup("MainWindow.CreateViewModel", () => new MainWindowViewModel(settings, _startupTrace));
MeasureStartup("MainWindow.ApplySavedDeviceColumnWidth", () => ApplySavedDeviceColumnWidth(settings), () => FormattableString.Invariant($"width={_sensorColumnWidths[0]:F0}"));
_appWindow = MeasureStartup("MainWindow.GetAppWindow", () =>
{
IntPtr hwnd = WindowNative.GetWindowHandle(this);
WindowId windowId = Win32Interop.GetWindowIdFromWindow(hwnd);
AppWindow appWindow = AppWindow.GetFromWindowId(windowId);
appWindow.Title = "Libre Hardware Monitor";
return appWindow;
});
_trayIconService = MeasureStartup("MainWindow.CreateTrayIconService", () => new TrayIconService(
WindowNative.GetWindowHandle(this),
settings,
() => ViewModel.TemperatureUnit));
_trayIconService.IsMainIconEnabled = ViewModel.MinimizeToTray;
Grid root = MeasureStartup("MainWindow.BuildRoot", BuildRoot);
MeasureStartup("MainWindow.AssignContent", () => Content = root);
_rootGrid = root;
_rootGrid.Loaded += RootGrid_Loaded;
_rootGrid.LayoutUpdated += RootGrid_LayoutUpdated;
(Grid contentGrid, Grid sensorPane, Grid plotPane, TreeView sensorTree, Canvas plotCanvas) = MeasureStartup("MainWindow.ResolveControls", () =>
{
Grid resolvedContentGrid = (Grid)root.Children[1];
Grid resolvedSensorPane = (Grid)resolvedContentGrid.Children[0];
Grid resolvedPlotPane = (Grid)resolvedContentGrid.Children[1];
TreeView resolvedSensorTree = (TreeView)((Grid)resolvedSensorPane.Children[1]).Children[0];
Canvas resolvedPlotCanvas = (Canvas)resolvedPlotPane.Children[1];
return (resolvedContentGrid, resolvedSensorPane, resolvedPlotPane, resolvedSensorTree, resolvedPlotCanvas);
});
_contentGrid = contentGrid;
_sensorPane = sensorPane;
_plotPane = plotPane;
_sensorTree = sensorTree;
_plotCanvas = plotCanvas;
MeasureStartup("MainWindow.RestoreWindowBounds", RestoreWindowBounds);
MeasureStartup("MainWindow.MaximizeWindow", MaximizeWindow);
MeasureStartup("MainWindow.ApplyTheme", ApplyTheme);
MeasureStartup("MainWindow.UpdatePlotLayout", UpdatePlotLayout);
(_timer, _deviceColumnWidthSettleTimer) = MeasureStartup("MainWindow.CreateTimers", () =>
{
DispatcherQueueTimer timer = DispatcherQueue.CreateTimer();
timer.Interval = ViewModel.UpdateInterval;
timer.Tick += UpdateTimer_Tick;
DispatcherQueueTimer settleTimer = DispatcherQueue.CreateTimer();
settleTimer.Interval = DeviceColumnWidthSettleDelay;
settleTimer.Tick += DeviceColumnWidthSettleTimer_Tick;
return (timer, settleTimer);
});
MeasureStartup("MainWindow.WireEvents", () =>
{
ViewModel.PropertyChanged += (_, args) =>
{
if (args.PropertyName is nameof(ViewModel.UpdateInterval) or nameof(ViewModel.UpdateIntervalIndex))
_timer.Interval = ViewModel.UpdateInterval;
if (args.PropertyName is nameof(ViewModel.ShowPlot)
or nameof(ViewModel.PlotLocation)
or nameof(ViewModel.PlotGridColumn)
or nameof(ViewModel.PlotGridRow))
UpdatePlotLayout();
if (args.PropertyName == nameof(ViewModel.ShowGadget))
UpdateGadgetVisibility();
if (args.PropertyName == nameof(ViewModel.MinimizeToTray))
_trayIconService.IsMainIconEnabled = ViewModel.MinimizeToTray;
if (args.PropertyName == nameof(ViewModel.TemperatureUnit))
{
_trayIconService.Update();
SyncGadgetSensors();
}
if (args.PropertyName == nameof(ViewModel.ShowHiddenSensors))
QueueSensorTreeRebuild();
if (args.PropertyName is nameof(ViewModel.ShowValueColumn)
or nameof(ViewModel.ShowMinColumn)
or nameof(ViewModel.ShowMaxColumn))
QueueSensorColumnWidthUpdate();
if (args.PropertyName == nameof(ViewModel.ThemeMode))
ApplyTheme();
};
ViewModel.RootItems.CollectionChanged += RootItems_CollectionChanged;
ViewModel.PlotInvalidated += (_, _) => DrawPlot();
ViewModel.GadgetSensorsChanged += (_, _) => SyncGadgetSensors();
ViewModel.TraySensorsChanged += (_, _) => SyncTraySensors();
_trayIconService.HideShowRequested += (_, _) => HideShowMainWindow();
_trayIconService.ExitRequested += (_, _) => CloseApplication();
_appWindow.Changed += AppWindow_Changed;
Closed += MainWindow_Closed;
});
_startupTrace?.Mark("MainWindow.Constructor.Complete");
}
public MainWindowViewModel ViewModel { get; }
public void StartMonitoringAfterActivation()
{
_startupTrace?.Mark("MainWindow.StartMonitoringAfterActivation.Queued");
if (!DispatcherQueue.TryEnqueue(async () =>
{
if (_isMonitoringStarted)
return;
_isMonitoringStarted = true;
try
{
_startupTrace?.Mark("MainWindow.StartMonitoringAfterActivation.Begin");
ApplyInitialWindowState();
await MeasureStartupAsync("MainWindowViewModel.StartAsync", ViewModel.StartAsync);
SyncTraySensors();
SyncGadgetSensors();
UpdateGadgetVisibility();
MeasureStartup("MainWindow.StartTimer", _timer.Start);
_startupTrace?.Mark("MainWindow.StartMonitoringAfterActivation.Complete");
RequestStartupTraceComplete();
_startupTrace?.Flush();
}
catch (Exception ex)
{
_startupTrace?.Mark("MainWindow.StartMonitoringAfterActivation.Exception", $"{ex.GetType().FullName}: {ex.Message}");
_startupTrace?.Flush();
RecordRuntimeError("Hardware initialization failed", ex);
}
}))
{
_startupTrace?.Mark("MainWindow.StartMonitoringAfterActivation.EnqueueFailed");
_startupTrace?.Flush();
}
}
private string GetRootSizeDetail()
{
return FormattableString.Invariant($"root={_rootGrid.ActualWidth:F0}x{_rootGrid.ActualHeight:F0}, rows={_sensorRowGrids.Count}, rootNodes={_sensorTree.RootNodes.Count}");
}
private void RootGrid_Loaded(object sender, RoutedEventArgs e)
{
_rootGrid.Loaded -= RootGrid_Loaded;
_startupTrace?.Mark("MainWindow.RootLoaded", GetRootSizeDetail());
_startupTrace?.Flush();
}
private void RootGrid_LayoutUpdated(object? sender, object e)
{
if (_firstLayoutRecorded)
return;
_firstLayoutRecorded = true;
_rootGrid.LayoutUpdated -= RootGrid_LayoutUpdated;
_startupTrace?.Mark("MainWindow.FirstLayoutUpdated", GetRootSizeDetail());
_startupTrace?.Flush();
}
private void MeasureStartup(string phase, Action action)
{
if (_startupTrace is not { IsComplete: false })
{
action();
return;
}
_startupTrace.Measure(phase, action);
}
private void MeasureStartup(string phase, Action action, Func<string> getDetail)
{
if (_startupTrace is not { IsComplete: false })
{
action();
return;
}
_startupTrace.Measure(phase, action, getDetail);
}
private T MeasureStartup<T>(string phase, Func<T> action)
{
if (_startupTrace is not { IsComplete: false })
return action();
return _startupTrace.Measure(phase, action);
}
private async Task MeasureStartupAsync(string phase, Func<Task> action)
{
if (_startupTrace is not { IsComplete: false })
{
await action();
return;
}
await _startupTrace.MeasureAsync(phase, action);
}
private Grid BuildRoot()
{
Grid root = new()
{
Background = new SolidColorBrush(Colors.White),
RowDefinitions =
{
new RowDefinition { Height = GridLength.Auto },
new RowDefinition { Height = new GridLength(1, GridUnitType.Star) },
new RowDefinition { Height = GridLength.Auto }
}
};
root.Children.Add(MeasureStartup("MainWindow.BuildMenuBar", BuildMenuBar));
Grid contentGrid = new()
{
ColumnDefinitions =
{
new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) },
new ColumnDefinition { Width = new GridLength(320) }
},
RowDefinitions =
{
new RowDefinition { Height = new GridLength(1, GridUnitType.Star) },
new RowDefinition { Height = new GridLength(220) }
}
};
Bind(contentGrid, UIElement.IsHitTestVisibleProperty, ViewModel, nameof(ViewModel.IsHardwareInteractionEnabled));
Grid.SetRow(contentGrid, 1);
contentGrid.Children.Add(MeasureStartup("MainWindow.BuildSensorPane", BuildSensorPane));
contentGrid.Children.Add(MeasureStartup("MainWindow.BuildPlotPane", BuildPlotPane));
root.Children.Add(contentGrid);
TextBlock statusText = new()
{
Padding = new Thickness(8, 4, 8, 4),
TextTrimming = TextTrimming.CharacterEllipsis
};
Bind(statusText, TextBlock.TextProperty, ViewModel, nameof(ViewModel.StatusText));
Grid.SetRow(statusText, 2);
root.Children.Add(statusText);
root.Children.Add(BuildLoadingOverlay());
return root;
}
private MenuBar BuildMenuBar()
{
MenuBar menuBar = new();
Bind(menuBar, Control.IsEnabledProperty, ViewModel, nameof(ViewModel.IsHardwareInteractionEnabled));
MenuBarItem file = new() { Title = "File" };
file.Items.Add(CreateMenuItem("Save Report...", async (_, _) => await SaveReportAsync()));
file.Items.Add(new MenuFlyoutSeparator());
file.Items.Add(CreateMenuItem("Reset", (_, _) => ViewModel.ResetHardware()));
MenuFlyoutSubItem hardware = new() { Text = "Hardware" };
hardware.Items.Add(CreateToggleItem("Motherboard", nameof(ViewModel.IsMotherboardEnabled)));
hardware.Items.Add(CreateToggleItem("CPU", nameof(ViewModel.IsCpuEnabled)));
hardware.Items.Add(CreateToggleItem("Memory", nameof(ViewModel.IsMemoryEnabled)));
hardware.Items.Add(CreateToggleItem("GPU", nameof(ViewModel.IsGpuEnabled)));
hardware.Items.Add(CreateToggleItem("Power Monitors", nameof(ViewModel.IsPowerMonitorEnabled)));
hardware.Items.Add(CreateToggleItem("Fan Controllers", nameof(ViewModel.IsControllerEnabled)));
hardware.Items.Add(CreateToggleItem("Storage Devices", nameof(ViewModel.IsStorageEnabled)));
hardware.Items.Add(CreateToggleItem("Network", nameof(ViewModel.IsNetworkEnabled)));
hardware.Items.Add(CreateToggleItem("Power Supplies", nameof(ViewModel.IsPsuEnabled)));
hardware.Items.Add(CreateToggleItem("Battery", nameof(ViewModel.IsBatteryEnabled)));
file.Items.Add(hardware);
file.Items.Add(new MenuFlyoutSeparator());
file.Items.Add(CreateMenuItem("Exit", (_, _) => CloseApplication()));
menuBar.Items.Add(file);
MenuBarItem view = new() { Title = "View" };
view.Items.Add(CreateMenuItem("Reset Min/Max", (_, _) => ViewModel.ResetMinMax()));
view.Items.Add(CreateMenuItem("Expand All Nodes", (_, _) =>
{
ViewModel.SetAllExpanded(true);
RebuildSensorTree();
}));
view.Items.Add(CreateMenuItem("Collapse All Nodes", (_, _) =>
{
ViewModel.SetAllExpanded(false);
RebuildSensorTree();
}));
view.Items.Add(CreateMenuItem("Reset Plot", (_, _) => ResetPlot()));
view.Items.Add(new MenuFlyoutSeparator());
view.Items.Add(CreateToggleItem("Show Hidden Sensors", nameof(ViewModel.ShowHiddenSensors)));
view.Items.Add(CreateToggleItem("Show Plot", nameof(ViewModel.ShowPlot)));
view.Items.Add(CreateToggleItem("Gadget", nameof(ViewModel.ShowGadget)));
MenuFlyoutSubItem columns = new() { Text = "Columns" };
columns.Items.Add(CreateToggleItem("Value", nameof(ViewModel.ShowValueColumn)));
columns.Items.Add(CreateToggleItem("Min", nameof(ViewModel.ShowMinColumn)));
columns.Items.Add(CreateToggleItem("Max", nameof(ViewModel.ShowMaxColumn)));
view.Items.Add(columns);
menuBar.Items.Add(view);
MenuBarItem options = new() { Title = "Options" };
options.Items.Add(CreateToggleItem("Start Minimized", nameof(ViewModel.StartMinimized)));
options.Items.Add(CreateToggleItem("Minimize To Tray", nameof(ViewModel.MinimizeToTray)));
options.Items.Add(CreateToggleItem("Minimize On Close", nameof(ViewModel.MinimizeOnClose)));
options.Items.Add(CreateToggleItem("Run On Windows Startup", nameof(ViewModel.RunOnStartup)));
options.Items.Add(new MenuFlyoutSeparator());
options.Items.Add(BuildRadioSubMenu("Temperature Unit", [
("Celsius", TemperatureUnit.Celsius),
("Fahrenheit", TemperatureUnit.Fahrenheit)
], () => ViewModel.TemperatureUnit, value => ViewModel.TemperatureUnit = value));
options.Items.Add(BuildRadioSubMenu("Plot Location", [
("Window", PlotLocation.Window),
("Bottom", PlotLocation.Bottom),
("Right", PlotLocation.Right)
], () => ViewModel.PlotLocation, value => ViewModel.PlotLocation = value));
options.Items.Add(BuildRadioSubMenu("Theme", [
("Auto", AppThemeMode.Auto),
("Light", AppThemeMode.Light),
("Dark", AppThemeMode.Dark),
("Black", AppThemeMode.Black)
], () => ViewModel.ThemeMode, value => ViewModel.ThemeMode = value));
options.Items.Add(BuildIndexedSubMenu("Stroke Thickness", [
("1pt", 1),
("2pt", 2),
("3pt", 3),
("4pt", 4)
], () => (int)ViewModel.PlotStrokeThickness, value => ViewModel.PlotStrokeThickness = value));
options.Items.Add(new MenuFlyoutSeparator());
options.Items.Add(CreateToggleItem("Log Sensors", nameof(ViewModel.LogSensors)));
options.Items.Add(CreateToggleItem("Force Drive Wakeup", nameof(ViewModel.ForceDriveWakeup)));
options.Items.Add(CreateToggleItem("Throttle ATA Storage", nameof(ViewModel.ThrottleAtaUpdate)));
options.Items.Add(BuildRadioSubMenu("File Rotation Method", [
("Per Session", LoggerFileRotation.PerSession),
("Daily", LoggerFileRotation.Daily)
], () => ViewModel.FileRotationMethod, value => ViewModel.FileRotationMethod = value));
options.Items.Add(BuildIndexedSubMenu("Update Interval", [
("250ms", 0),
("500ms", 1),
("1s", 2),
("2s", 3),
("5s", 4),
("10s", 5)
], () => ViewModel.UpdateIntervalIndex, value => ViewModel.UpdateIntervalIndex = value));
options.Items.Add(BuildIndexedSubMenu("Logging Interval", [
("1s", 0),
("2s", 1),
("5s", 2),
("10s", 3),
("30s", 4),
("1min", 5),
("2min", 6),
("5min", 7),
("10min", 8),
("30min", 9),
("1h", 10),
("2h", 11),
("6h", 12)
], () => ViewModel.LoggingIntervalIndex, value => ViewModel.LoggingIntervalIndex = value));
options.Items.Add(BuildIndexedSubMenu("Sensor Values Time Window", [
("30s", 0),
("1min", 1),
("2min", 2),
("5min", 3),
("10min", 4),
("30min", 5),
("1h", 6),
("2h", 7),
("6h", 8),
("12h", 9),
("24h", 10)
], () => ViewModel.SensorValuesTimeWindowIndex, value => ViewModel.SensorValuesTimeWindowIndex = value));
options.Items.Add(new MenuFlyoutSeparator());
MenuFlyoutSubItem webServer = new() { Text = "Remote Web Server" };
ToggleMenuFlyoutItem runWebServer = CreateToggleItem("Run", nameof(ViewModel.RunWebServer));
runWebServer.IsEnabled = !ViewModel.IsWebServerUnavailable;
webServer.Items.Add(runWebServer);
MenuFlyoutItem interfacePort = CreateMenuItem("Interface / Port", async (_, _) => await ShowWebServerSettingsAsync());
interfacePort.IsEnabled = !ViewModel.IsWebServerUnavailable;
webServer.Items.Add(interfacePort);
MenuFlyoutItem authentication = CreateMenuItem("Authentication", async (_, _) => await ShowWebServerAuthenticationAsync());
authentication.IsEnabled = !ViewModel.IsWebServerUnavailable;
webServer.Items.Add(authentication);
options.Items.Add(webServer);
menuBar.Items.Add(options);
MenuBarItem help = new() { Title = "Help" };
help.Items.Add(CreateMenuItem("About", async (_, _) => await ShowAboutAsync()));
menuBar.Items.Add(help);
return menuBar;
}
private Grid BuildLoadingOverlay()
{
Grid overlay = new()
{
Background = new SolidColorBrush(global::Windows.UI.Color.FromArgb(150, 128, 128, 128)),
Visibility = ViewModel.HardwareLoadingVisibility,
IsHitTestVisible = true
};
Bind(overlay, UIElement.VisibilityProperty, ViewModel, nameof(ViewModel.HardwareLoadingVisibility));
Grid.SetRowSpan(overlay, 3);
Canvas.SetZIndex(overlay, 1000);
StackPanel content = new()
{
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center,
Spacing = 12
};
ProgressRing progressRing = new()
{
Width = 64,
Height = 64,
IsIndeterminate = true
};
TextBlock text = new()
{
Text = "Loading hardware devices...",
FontWeight = new global::Windows.UI.Text.FontWeight { Weight = 600 },
HorizontalAlignment = HorizontalAlignment.Center
};
content.Children.Add(progressRing);
content.Children.Add(text);
overlay.Children.Add(content);
return overlay;
}
private Grid BuildSensorPane()
{
Grid pane = new()
{
RowDefinitions =
{
new RowDefinition { Height = GridLength.Auto },
new RowDefinition { Height = new GridLength(1, GridUnitType.Star) }
}
};
Grid header = CreateSensorRowGrid();
_sensorHeader = header;
header.Padding = new Thickness(8, 5, 8, 5);
header.Background = (Brush)Application.Current.Resources["SystemControlBackgroundChromeMediumLowBrush"];
header.Children.Add(CreateHeaderText("Sensor", 0, Visibility.Visible));
header.Children.Add(CreateHeaderText("Value", 1, ViewModel.ValueColumnVisibility, nameof(ViewModel.ValueColumnVisibility)));
header.Children.Add(CreateHeaderText("Min", 2, ViewModel.MinColumnVisibility, nameof(ViewModel.MinColumnVisibility)));
header.Children.Add(CreateHeaderText("Max", 3, ViewModel.MaxColumnVisibility, nameof(ViewModel.MaxColumnVisibility)));
pane.Children.Add(header);
Grid treeHost = new();
Grid.SetRow(treeHost, 1);
TreeView tree = new()
{
ItemTemplate = CreateTreeViewNodeContentTemplate(),
SelectionMode = TreeViewSelectionMode.Single
};
tree.SelectionChanged += SensorTree_SelectionChanged;
treeHost.Children.Add(tree);
pane.Children.Add(treeHost);
return pane;
}
private Grid BuildPlotPane()
{
Grid pane = new()
{
Padding = new Thickness(8),
BorderBrush = (Brush)Application.Current.Resources["SystemControlForegroundBaseLowBrush"],
BorderThickness = new Thickness(1, 0, 0, 0),
RowDefinitions =
{
new RowDefinition { Height = GridLength.Auto },
new RowDefinition { Height = new GridLength(1, GridUnitType.Star) }
}
};
Grid toolbar = new()
{
ColumnDefinitions =
{
new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) },
new ColumnDefinition { Width = GridLength.Auto }
}
};
toolbar.Children.Add(new TextBlock { Text = "Plot", FontWeight = new global::Windows.UI.Text.FontWeight { Weight = 600 }, VerticalAlignment = VerticalAlignment.Center });
Button reset = new() { Content = "Reset" };
reset.Click += (_, _) => ResetPlot();
Grid.SetColumn(reset, 1);
toolbar.Children.Add(reset);
pane.Children.Add(toolbar);
Canvas canvas = new()
{
MinHeight = 160,
Background = (Brush)Application.Current.Resources["SystemControlBackgroundAltHighBrush"]
};
canvas.SizeChanged += (_, _) => DrawPlot();
Grid.SetRow(canvas, 1);
pane.Children.Add(canvas);
return pane;
}
private void RootItems_CollectionChanged(object? sender, NotifyCollectionChangedEventArgs e)
{
QueueSensorTreeRebuild();
}
private void QueueSensorTreeRebuild()
{
if (_sensorTreeRebuildQueued)
return;
_sensorTreeRebuildQueued = true;
if (!DispatcherQueue.TryEnqueue(() =>
{
_sensorTreeRebuildQueued = false;
RebuildSensorTree();
}))
{
_sensorTreeRebuildQueued = false;
}
}
private void QueueSensorColumnWidthUpdate()
{
if (_sensorColumnWidthUpdateQueued)
return;
_sensorColumnWidthUpdateQueued = true;
if (!DispatcherQueue.TryEnqueue(() =>
{
_sensorColumnWidthUpdateQueued = false;
UpdateSensorColumnWidths();
}))
{
_sensorColumnWidthUpdateQueued = false;
}
}
private async void UpdateTimer_Tick(DispatcherQueueTimer sender, object args)
{
if (_isUpdating || _isShuttingDown)
return;
_isUpdating = true;
try
{
await ViewModel.UpdateAsync();
// The window may have been closed (and the view model/computer disposed) while we awaited the update.
if (_isShuttingDown)
return;
UpdateSensorColumnWidths();
_trayIconService.Update();
_gadgetWindow?.UpdateSensors(ViewModel.GetGadgetSensorItems());
DrawPlot();
}
catch (Exception ex)
{
// A transient update failure must not permanently freeze the UI: keep the timer running and just record it.
RecordRuntimeError("Sensor update failed", ex);
}
finally
{
_isUpdating = false;
}
}
private void RecordRuntimeError(string message, Exception exception)
{
_startupTrace?.Mark("MainWindow.RuntimeError", $"{message}: {exception.GetType().FullName}: {exception.Message}");
_startupTrace?.Flush();
// Use a dedicated runtime log (not the startup log that App.xaml.cs appends to) and write it only once, so a
// recurring per-tick failure neither clobbers the startup diagnostics nor grows the file without bound.
string logPath = IOPath.Combine(AppContext.BaseDirectory, "LibreHardwareMonitor.Windows.WinUI.runtime.log");
if (!_runtimeErrorLogged)
{
try
{
File.WriteAllText(logPath, exception.ToString());
}
catch
{
// Never let diagnostic logging throw out of the update loop.
}
_runtimeErrorLogged = true;
}
ViewModel.SetStatusText($"{message}. See {IOPath.GetFileName(logPath)}.");
}
private void ApplySavedDeviceColumnWidth(AppSettings settings)
{
_stableDeviceColumnWidth = NormalizeDeviceColumnWidth(settings.GetValue(DeviceColumnWidthSetting, DefaultSensorColumnWidth));
_sensorColumnWidths[0] = _stableDeviceColumnWidth;
}
private void MainWindow_Closed(object sender, WindowEventArgs args)
{
if (!_isClosingForExit && ViewModel.MinimizeOnClose)
{
args.Handled = true;
MinimizeOrHideMainWindow();
return;
}
_isShuttingDown = true;
_timer.Stop();
_deviceColumnWidthSettleTimer.Stop();
_trayIconService.Dispose();
CloseSecondaryWindows();
SaveWindowBounds();
ViewModel.Dispose();
_startupTrace?.Dispose();
}
private void AppWindow_Changed(AppWindow sender, AppWindowChangedEventArgs args)
{
if (_isClosingForExit || !ViewModel.MinimizeToTray)
return;
if (sender.Presenter is OverlappedPresenter { State: OverlappedPresenterState.Minimized })
HideMainWindowToTray();
}
private void ApplyInitialWindowState()
{
if (_initialWindowStateApplied)
return;
_initialWindowStateApplied = true;
if (ViewModel.StartMinimized)
MinimizeOrHideMainWindow();
}
private void CloseApplication()
{
_isClosingForExit = true;
Close();
}
private void CloseSecondaryWindows()
{
if (_gadgetWindow != null)
{
SensorGadgetWindow gadgetWindow = _gadgetWindow;
_gadgetWindow = null;
gadgetWindow.CloseFromOwner();
}
if (_plotWindow != null)
{
PlotWindow plotWindow = _plotWindow;
_plotWindow = null;
plotWindow.CloseFromOwner();
}
}
private void HideShowMainWindow()
{
IntPtr hwnd = WindowNative.GetWindowHandle(this);
if (_isMainWindowHidden || !IsWindowVisible(hwnd) || IsIconic(hwnd))
RestoreMainWindow();
else
HideMainWindowToTray();
}
private void MinimizeOrHideMainWindow()
{
if (ViewModel.MinimizeToTray)
HideMainWindowToTray();
else
{
_isMainWindowHidden = false;
ShowWindow(WindowNative.GetWindowHandle(this), ShowWindowMinimize);
}
}
private void HideMainWindowToTray()
{
_isMainWindowHidden = true;
ShowWindow(WindowNative.GetWindowHandle(this), ShowWindowHide);
}
private void RestoreMainWindow()
{
IntPtr hwnd = WindowNative.GetWindowHandle(this);
_isMainWindowHidden = false;
ShowWindow(hwnd, ShowWindowShow);
ShowWindow(hwnd, ShowWindowRestore);
Activate();
}
private void SyncTraySensors()
{
_trayIconService.RestoreSelectedSensors(ViewModel.GetTraySensorItems());
}
private void SyncGadgetSensors()
{
_gadgetWindow?.UpdateSensors(ViewModel.GetGadgetSensorItems());
}
private void UpdateGadgetVisibility()
{
if (ViewModel.ShowGadget)
{
if (_gadgetWindow == null)
{
_gadgetWindow = new SensorGadgetWindow(ViewModel);
_gadgetWindow.HideShowMainWindowRequested += (_, _) => HideShowMainWindow();
_gadgetWindow.UserClosed += (_, _) =>
{
_gadgetWindow = null;
ViewModel.ShowGadget = false;
};
SyncGadgetSensors();
_gadgetWindow.Activate();
}
return;
}
if (_gadgetWindow != null)
{
SensorGadgetWindow gadgetWindow = _gadgetWindow;
_gadgetWindow = null;
gadgetWindow.CloseFromOwner();
}
}
private void UpdatePlotWindowVisibility()
{
if (ViewModel.IsPlotWindowVisible)
{
if (_plotWindow == null)
{
_plotWindow = new PlotWindow(ViewModel.Settings);
_plotWindow.PlotSizeChanged += (_, _) => DrawPlot();
_plotWindow.UserClosed += (_, _) =>
{
_plotWindow = null;
ViewModel.ShowPlot = false;
};
_plotWindow.Activate();
}
return;
}
if (_plotWindow != null)
{
PlotWindow plotWindow = _plotWindow;
_plotWindow = null;
plotWindow.CloseFromOwner();
}
}
private void RebuildSensorTree()
{
MeasureStartup("MainWindow.RebuildSensorTree", RebuildSensorTreeCore, GetRootSizeDetail);
ScheduleDeviceColumnWidthSettle();
SyncTraySensors();
SyncGadgetSensors();
if (_startupCompletionRequested)
CompleteStartupTraceIfReady();
}
private void RebuildSensorTreeCore()
{
if (_sensorTree == null)
return;
_sensorRowGrids.Clear();
_sensorTree.RootNodes.Clear();
foreach (SensorTreeItemViewModel item in ViewModel.RootItems)
{
TreeViewNode? node = CreateTreeNode(item);
if (node != null)
_sensorTree.RootNodes.Add(node);
}
UpdateSensorColumnWidths();
}
private void CompleteStartupTraceIfReady()
{
if (_startupCompleteRecorded || _startupTrace is not { IsComplete: false } || _sensorRowGrids.Count == 0)
return;
_startupCompleteRecorded = true;
_startupTrace.Complete("MainWindow.StartupComplete", GetRootSizeDetail());
}
private void RequestStartupTraceComplete()
{
_startupCompletionRequested = true;
if (!DispatcherQueue.TryEnqueue(CompleteStartupTraceIfReady))
CompleteStartupTraceIfReady();
}
private void DeviceColumnWidthSettleTimer_Tick(DispatcherQueueTimer sender, object args)
{
_deviceColumnWidthSettleTimer.Stop();
_deviceColumnWidthSettled = true;
UpdateSensorColumnWidths();
}
private void ScheduleDeviceColumnWidthSettle()
{
if (_sensorRowGrids.Count == 0)
return;
_deviceColumnWidthSettled = false;
_deviceColumnWidthSettleTimer.Stop();
_deviceColumnWidthSettleTimer.Start();
}
private static DataTemplate CreateTreeViewNodeContentTemplate()
{
const string xaml = """
<DataTemplate xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
<ContentPresenter Content="{Binding Content}" />
</DataTemplate>
""";
return (DataTemplate)XamlReader.Load(xaml);
}
private TreeViewNode? CreateTreeNode(SensorTreeItemViewModel item)
{
if (item.RowVisibility == Visibility.Collapsed)
return null;
TreeViewNode node = new()
{
Content = CreateSensorRow(item),
IsExpanded = item.IsExpanded
};
foreach (SensorTreeItemViewModel child in item.Children)
{
TreeViewNode? childNode = CreateTreeNode(child);
if (childNode != null)
node.Children.Add(childNode);
}
return node;
}
private FrameworkElement CreateSensorRow(SensorTreeItemViewModel item)
{
Grid row = CreateSensorRowGrid();
_sensorRowGrids.Add(row);
row.DataContext = item;
row.Padding = new Thickness(0, 3, 0, 3);
StackPanel sensorCell = new() { Orientation = Orientation.Horizontal, Spacing = 6 };
CheckBox plotCheck = new() { MinWidth = 22 };
Bind(plotCheck, ToggleButton.IsCheckedProperty, item, nameof(SensorTreeItemViewModel.Plot), BindingMode.TwoWay);
Bind(plotCheck, UIElement.VisibilityProperty, item, nameof(SensorTreeItemViewModel.PlotCheckVisibility));
sensorCell.Children.Add(plotCheck);
FontIcon icon = new() { FontSize = 14 };
Bind(icon, FontIcon.GlyphProperty, item, nameof(SensorTreeItemViewModel.IconGlyph));
sensorCell.Children.Add(icon);
TextBlock name = new() { TextTrimming = TextTrimming.CharacterEllipsis };
Bind(name, TextBlock.TextProperty, item, nameof(SensorTreeItemViewModel.Text));
ToolTip toolTip = new();
Bind(toolTip, ContentControl.ContentProperty, item, nameof(SensorTreeItemViewModel.ToolTip));
ToolTipService.SetToolTip(name, toolTip);
sensorCell.Children.Add(name);
row.Children.Add(sensorCell);
row.Children.Add(CreateValueTextBlock(item, nameof(SensorTreeItemViewModel.Value), nameof(SensorTreeItemViewModel.ValueColumnVisibility), 1));
row.Children.Add(CreateValueTextBlock(item, nameof(SensorTreeItemViewModel.Min), nameof(SensorTreeItemViewModel.MinColumnVisibility), 2));
row.Children.Add(CreateValueTextBlock(item, nameof(SensorTreeItemViewModel.Max), nameof(SensorTreeItemViewModel.MaxColumnVisibility), 3));
row.ContextFlyout = BuildSensorContextMenu(item);
row.DoubleTapped += async (_, _) =>
{
if (item.Sensor?.Parameters.Count > 0)
await ShowParametersAsync(item);
};
return row;
}
private MenuFlyout BuildSensorContextMenu(SensorTreeItemViewModel item)
{
MenuFlyout flyout = new();
if (item.Sensor?.Parameters.Count > 0)
flyout.Items.Add(CreateMenuItem("Parameters...", async (_, _) => await ShowParametersAsync(item)));
MenuFlyoutItem rename = CreateMenuItem("Rename", async (_, _) => await RenameNodeAsync(item));
rename.IsEnabled = item.CanRename;
flyout.Items.Add(rename);
ToggleMenuFlyoutItem plot = new() { Text = "Show in Plot", IsEnabled = item.Sensor != null };
Bind(plot, ToggleMenuFlyoutItem.IsCheckedProperty, item, nameof(SensorTreeItemViewModel.Plot), BindingMode.TwoWay);
flyout.Items.Add(plot);
ToggleMenuFlyoutItem tray = new()
{
Text = "Show in Tray",
IsChecked = ViewModel.IsSensorInTray(item),
IsEnabled = item.Sensor != null
};
tray.Click += (_, _) =>
{
ViewModel.SetSensorInTray(item, tray.IsChecked);
SyncTraySensors();
};
flyout.Items.Add(tray);
ToggleMenuFlyoutItem gadget = new()
{
Text = "Show in Gadget",
IsChecked = ViewModel.IsSensorInGadget(item),
IsEnabled = item.Sensor != null
};
gadget.Click += (_, _) =>
{
ViewModel.SetSensorInGadget(item, gadget.IsChecked);
SyncGadgetSensors();
};
flyout.Items.Add(gadget);
MenuFlyoutItem hide = CreateMenuItem(item.IsVisible ? "Hide Sensor" : "Unhide Sensor", (_, _) =>
{
if (item.CanHide)
{
item.IsVisible = !item.IsVisible;
RebuildSensorTree();
}
});
hide.IsEnabled = item.CanHide;
flyout.Items.Add(hide);
flyout.Items.Add(new MenuFlyoutSeparator());
MenuFlyoutItem penColor = CreateMenuItem("Pen Color...", async (_, _) => await ShowPenColorAsync(item));
penColor.IsEnabled = item.Sensor != null;
flyout.Items.Add(penColor);
MenuFlyoutItem resetPenColor = CreateMenuItem("Reset Pen Color", (_, _) => ViewModel.SetSensorPenColor(item, null));
resetPenColor.IsEnabled = item.PenColor != null;
flyout.Items.Add(resetPenColor);
if (item.Sensor?.Control != null)
{
flyout.Items.Add(new MenuFlyoutSeparator());
flyout.Items.Add(BuildControlMenu(item.Sensor.Control));
}
flyout.Items.Add(new MenuFlyoutSeparator());
flyout.Items.Add(CreateMenuItem("Reset Min/Max", (_, _) => ViewModel.ResetMinMax()));
return flyout;
}
private static MenuFlyoutSubItem BuildControlMenu(IControl control)
{
MenuFlyoutSubItem controlItem = new() { Text = "Control" };
ToggleMenuFlyoutItem defaultItem = new() { Text = "Default", IsChecked = control.ControlMode == ControlMode.Default };
defaultItem.Click += (_, _) => control.SetDefault();
controlItem.Items.Add(defaultItem);
MenuFlyoutSubItem manual = new() { Text = "Manual" };
for (int value = 0; value <= 100; value += 5)
{
if (value > control.MaxSoftwareValue || value < control.MinSoftwareValue)
continue;
int controlValue = value;
ToggleMenuFlyoutItem item = new()
{
Text = $"{controlValue} %",
IsChecked = control.ControlMode == ControlMode.Software && Math.Abs(control.SoftwareValue - controlValue) < 0.1f
};
item.Click += (_, _) => control.SetSoftware(controlValue);
manual.Items.Add(item);
}
controlItem.Items.Add(manual);
return controlItem;
}
private async Task RenameNodeAsync(SensorTreeItemViewModel item)
{
if (!item.CanRename)
return;
TextBox nameTextBox = new() { Text = item.Text, SelectionStart = 0, SelectionLength = item.Text.Length };
ContentDialog dialog = new()
{
XamlRoot = Content.XamlRoot,
Title = "Rename Sensor",
Content = nameTextBox,
PrimaryButtonText = "Save",
CloseButtonText = "Cancel",
DefaultButton = ContentDialogButton.Primary
};
if (await dialog.ShowAsync() == ContentDialogResult.Primary)
item.Text = nameTextBox.Text.Trim();
}
private async Task ShowPenColorAsync(SensorTreeItemViewModel item)
{
if (item.Sensor == null)
return;
ColorPicker picker = new()
{
Color = item.PenColor ?? global::Windows.UI.Color.FromArgb(255, 0, 120, 212),
IsAlphaEnabled = false,
IsColorSliderVisible = true,
IsColorChannelTextInputVisible = true,
IsHexInputVisible = true
};
ContentDialog dialog = new()
{
XamlRoot = Content.XamlRoot,
Title = "Pen Color",
Content = picker,
PrimaryButtonText = "Save",
CloseButtonText = "Cancel",
DefaultButton = ContentDialogButton.Primary
};
if (await dialog.ShowAsync() == ContentDialogResult.Primary)
ViewModel.SetSensorPenColor(item, picker.Color);
}
private async Task ShowParametersAsync(SensorTreeItemViewModel item)
{
if (item.Sensor == null || item.Sensor.Parameters.Count == 0)
return;
StackPanel panel = new() { Spacing = 10 };
TextBlock caption = new()
{
Text = item.Sensor.Name,
FontWeight = new global::Windows.UI.Text.FontWeight { Weight = 600 },
TextWrapping = TextWrapping.Wrap
};
panel.Children.Add(caption);
ParameterEditorRow[] rows = item.Sensor.Parameters.Select(CreateParameterEditorRow).ToArray();
foreach (ParameterEditorRow row in rows)
panel.Children.Add(row.Container);
ContentDialog dialog = new()
{
XamlRoot = Content.XamlRoot,
Title = "Parameters",
Content = new ScrollViewer { Content = panel, MaxHeight = 520 },
PrimaryButtonText = "OK",
CloseButtonText = "Cancel",
DefaultButton = ContentDialogButton.Primary
};
dialog.PrimaryButtonClick += (sender, args) =>
{
foreach (ParameterEditorRow row in rows)
{
if (row.UseDefault.IsChecked == true)
continue;
if (!float.TryParse(row.Value.Text, NumberStyles.Float, CultureInfo.CurrentCulture, out float _)
&& !float.TryParse(row.Value.Text, NumberStyles.Float, CultureInfo.InvariantCulture, out float _))
{
row.Value.Header = "Invalid value";
args.Cancel = true;
return;
}
}
foreach (ParameterEditorRow row in rows)
{
if (row.UseDefault.IsChecked == true)
row.Parameter.IsDefault = true;
else if (float.TryParse(row.Value.Text, NumberStyles.Float, CultureInfo.CurrentCulture, out float currentCultureValue)
|| float.TryParse(row.Value.Text, NumberStyles.Float, CultureInfo.InvariantCulture, out currentCultureValue))
row.Parameter.Value = currentCultureValue;
}
};
await dialog.ShowAsync();
}
private static ParameterEditorRow CreateParameterEditorRow(IParameter parameter)
{
Grid grid = new()
{
ColumnDefinitions =
{
new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) },
new ColumnDefinition { Width = GridLength.Auto },
new ColumnDefinition { Width = new GridLength(120) }
},
RowDefinitions =
{
new RowDefinition { Height = GridLength.Auto },
new RowDefinition { Height = GridLength.Auto }
},
ColumnSpacing = 8
};
TextBlock name = new()
{
Text = parameter.Name,
VerticalAlignment = VerticalAlignment.Center,
TextWrapping = TextWrapping.Wrap
};
grid.Children.Add(name);
CheckBox useDefault = new()
{
Content = "Default",
IsChecked = parameter.IsDefault,
VerticalAlignment = VerticalAlignment.Center
};
Grid.SetColumn(useDefault, 1);
grid.Children.Add(useDefault);
TextBox value = new()
{
Text = parameter.Value.ToString(CultureInfo.CurrentCulture),
IsEnabled = !parameter.IsDefault
};
Grid.SetColumn(value, 2);
grid.Children.Add(value);
TextBlock description = new()
{
Text = parameter.Description,
Opacity = 0.72,
TextWrapping = TextWrapping.Wrap
};
Grid.SetRow(description, 1);
Grid.SetColumnSpan(description, 3);
grid.Children.Add(description);
useDefault.Checked += (_, _) => value.IsEnabled = false;
useDefault.Unchecked += (_, _) => value.IsEnabled = true;
return new ParameterEditorRow(parameter, grid, useDefault, value);
}
private async Task ShowWebServerSettingsAsync()
{
ComboBox interfaces = new() { MinWidth = 260 };
foreach (string address in GetLocalIPv4Addresses())
interfaces.Items.Add(address);
interfaces.Items.Add("0.0.0.0");
interfaces.SelectedItem = interfaces.Items.Contains(ViewModel.ListenerIp) ? ViewModel.ListenerIp : "0.0.0.0";
TextBox port = new()
{
Header = "Port",
Text = ViewModel.ListenerPort.ToString(CultureInfo.InvariantCulture),
InputScope = new InputScope { Names = { new InputScopeName(InputScopeNameValue.Number) } }
};
HyperlinkButton link = new()
{
Content = ViewModel.WebServerUrl,
NavigateUri = new Uri(ViewModel.WebServerUrl)
};
StackPanel content = new() { Spacing = 12 };
content.Children.Add(new TextBlock { Text = "Interface", FontWeight = new global::Windows.UI.Text.FontWeight { Weight = 600 } });
content.Children.Add(interfaces);
content.Children.Add(port);
content.Children.Add(link);
ContentDialog dialog = new()
{
XamlRoot = Content.XamlRoot,
Title = "Remote Web Server",
Content = content,
PrimaryButtonText = "Save",
CloseButtonText = "Cancel",
DefaultButton = ContentDialogButton.Primary
};
dialog.PrimaryButtonClick += (_, args) =>
{
if (!int.TryParse(port.Text, NumberStyles.Integer, CultureInfo.InvariantCulture, out int parsedPort) || parsedPort < 1 || parsedPort > 65535)
{
port.Header = "Port must be 1-65535";
args.Cancel = true;
return;
}
ViewModel.ListenerIp = interfaces.SelectedItem as string ?? "0.0.0.0";
ViewModel.ListenerPort = parsedPort;
};
await dialog.ShowAsync();
}
private async Task ShowWebServerAuthenticationAsync()
{
CheckBox enabled = new() { Content = "Enable HTTP authentication", IsChecked = ViewModel.AuthWebServer };
TextBox userName = new()
{
Header = "Username",
Text = ViewModel.AuthWebServerUserName,
IsEnabled = enabled.IsChecked == true
};
PasswordBox password = new()
{
Header = "New password",
IsEnabled = enabled.IsChecked == true
};
enabled.Checked += (_, _) => userName.IsEnabled = password.IsEnabled = true;
enabled.Unchecked += (_, _) => userName.IsEnabled = password.IsEnabled = false;
StackPanel content = new() { Spacing = 12 };
content.Children.Add(enabled);
content.Children.Add(userName);
content.Children.Add(password);
ContentDialog dialog = new()
{
XamlRoot = Content.XamlRoot,
Title = "Remote Web Server Authentication",
Content = content,
PrimaryButtonText = "Save",
CloseButtonText = "Cancel",
DefaultButton = ContentDialogButton.Primary
};
dialog.PrimaryButtonClick += (_, _) =>
{
ViewModel.AuthWebServer = enabled.IsChecked == true;
ViewModel.AuthWebServerUserName = userName.Text;
ViewModel.SetAuthPassword(password.Password);
};
await dialog.ShowAsync();
}
private void SensorTree_SelectionChanged(TreeView sender, TreeViewSelectionChangedEventArgs args)
{
if (args.AddedItems.Count == 0)
{
ViewModel.SelectedItem = null;
return;
}
object selected = args.AddedItems[0];
if (selected is TreeViewNode node && node.Content is FrameworkElement element)
ViewModel.SelectedItem = element.DataContext as SensorTreeItemViewModel;
}
private async Task SaveReportAsync()
{
FileSavePicker picker = new()
{
SuggestedFileName = "LibreHardwareMonitor.Report",
SuggestedStartLocation = PickerLocationId.DocumentsLibrary
};
picker.FileTypeChoices.Add("Text", [".txt"]);
InitializeWithWindow.Initialize(picker, WindowNative.GetWindowHandle(this));
StorageFile? file = await picker.PickSaveFileAsync();
if (file == null)
return;
CachedFileManager.DeferUpdates(file);
await FileIO.WriteTextAsync(file, ViewModel.GetReport());
await CachedFileManager.CompleteUpdatesAsync(file);
}
private async Task ShowAboutAsync()
{
StackPanel content = new() { Spacing = 8 };
content.Children.Add(new TextBlock
{
Text = "Libre Hardware Monitor",
FontWeight = new global::Windows.UI.Text.FontWeight { Weight = 600 },
FontSize = 18
});
content.Children.Add(new TextBlock
{
Text = $"Version {typeof(MainWindow).Assembly.GetName().Version}",
TextWrapping = TextWrapping.Wrap
});
content.Children.Add(new TextBlock
{
Text = "A free, open source hardware monitoring application.",
TextWrapping = TextWrapping.Wrap
});
content.Children.Add(new HyperlinkButton
{
Content = "Project website",
NavigateUri = new Uri("https://github.com/LibreHardwareMonitor/LibreHardwareMonitor")
});
content.Children.Add(new HyperlinkButton
{
Content = "Mozilla Public License 2.0",
NavigateUri = new Uri("https://www.mozilla.org/MPL/2.0/")
});
ContentDialog dialog = new()
{
XamlRoot = Content.XamlRoot,
Title = "Libre Hardware Monitor",
Content = content,
CloseButtonText = "OK"
};
await dialog.ShowAsync();
}
private void ResetPlot()
{
ViewModel.ResetPlot();
DrawPlot();
}
private void DrawPlot()
{
if (ViewModel.PlotLocation == PlotLocation.Window)
_plotCanvas.Children.Clear();
else
DrawPlot(_plotCanvas);
if (_plotWindow != null)
DrawPlot(_plotWindow.PlotCanvas);
}
private void DrawPlot(Canvas canvas)
{
canvas.Children.Clear();
if (!ViewModel.ShowPlot || ViewModel.PlotSeries.Count == 0 || canvas.ActualWidth <= 4 || canvas.ActualHeight <= 4)
return;
double minTime = double.MaxValue;
double maxTime = double.MinValue;
double minValue = double.MaxValue;
double maxValue = double.MinValue;
foreach (PlotSeriesViewModel plotSeries in ViewModel.PlotSeries)
{
foreach (PlotPointViewModel point in plotSeries.Points)
{
double time = point.Timestamp.ToOADate();
minTime = Math.Min(minTime, time);
maxTime = Math.Max(maxTime, time);
minValue = Math.Min(minValue, point.Value);
maxValue = Math.Max(maxValue, point.Value);
}
}
if (minTime == double.MaxValue || minValue == double.MaxValue)
return;
if (Math.Abs(maxTime - minTime) < double.Epsilon)
maxTime = minTime + TimeSpan.FromSeconds(1).TotalDays;
if (Math.Abs(maxValue - minValue) < double.Epsilon)
{
maxValue += 1;
minValue -= 1;
}
double width = canvas.ActualWidth;
double height = canvas.ActualHeight;
DrawAxis(canvas, width, height);
foreach (PlotSeriesViewModel plotSeries in ViewModel.PlotSeries)
{
Polyline line = new()
{
Stroke = new SolidColorBrush(plotSeries.Color),
StrokeThickness = ViewModel.PlotStrokeThickness,
StrokeLineJoin = PenLineJoin.Round
};
foreach (PlotPointViewModel point in plotSeries.Points)
{
double x = (point.Timestamp.ToOADate() - minTime) / (maxTime - minTime) * width;
double y = height - ((point.Value - minValue) / (maxValue - minValue) * height);
line.Points.Add(new global::Windows.Foundation.Point(x, y));
}
canvas.Children.Add(line);
}
}
private static void DrawAxis(Canvas canvas, double width, double height)
{
SolidColorBrush brush = new(Colors.Gray);
for (int i = 1; i < 4; i++)
{
double y = height * i / 4;
canvas.Children.Add(new Line
{
X1 = 0,
X2 = width,
Y1 = y,
Y2 = y,
Stroke = brush,
StrokeThickness = 0.5,
Opacity = 0.5
});
}
}
private void UpdatePlotLayout()
{
_contentGrid.ColumnDefinitions[1].Width = ViewModel.ShowPlot && ViewModel.PlotLocation == PlotLocation.Right ? new GridLength(320) : new GridLength(0);
_contentGrid.RowDefinitions[1].Height = ViewModel.ShowPlot && ViewModel.PlotLocation == PlotLocation.Bottom ? new GridLength(220) : new GridLength(0);
_plotPane.Visibility = ViewModel.PlotVisibility;
Grid.SetRow(_plotPane, ViewModel.PlotGridRow);
Grid.SetColumn(_plotPane, ViewModel.PlotGridColumn);
Grid.SetRowSpan(_plotPane, ViewModel.PlotGridRowSpan);
Grid.SetColumnSpan(_plotPane, ViewModel.PlotGridColumnSpan);
Grid.SetRowSpan(_sensorPane, ViewModel.SensorGridRowSpan);
Grid.SetColumnSpan(_sensorPane, ViewModel.SensorGridColumnSpan);
UpdatePlotWindowVisibility();
DrawPlot();
}
private void ApplyTheme()
{
_rootGrid.RequestedTheme = ViewModel.ThemeMode switch
{
AppThemeMode.Light => ElementTheme.Light,
AppThemeMode.Dark or AppThemeMode.Black => ElementTheme.Dark,
_ => ElementTheme.Default
};
_rootGrid.Background = ViewModel.ThemeMode switch
{
AppThemeMode.Black => new SolidColorBrush(Colors.Black),
AppThemeMode.Dark => new SolidColorBrush(global::Windows.UI.Color.FromArgb(255, 30, 30, 30)),
_ => (Brush)Application.Current.Resources["ApplicationPageBackgroundThemeBrush"]
};
}
private void RestoreWindowBounds()
{
int width = Math.Max(470, ViewModel.Settings.GetValue("mainForm.Width", 760));
int height = Math.Max(640, ViewModel.Settings.GetValue("mainForm.Height", 680));
_appWindow.Resize(new SizeInt32(width, height));
int x = ViewModel.Settings.GetValue("mainForm.Location.X", int.MinValue);
int y = ViewModel.Settings.GetValue("mainForm.Location.Y", int.MinValue);
if (x != int.MinValue && y != int.MinValue)
_appWindow.Move(new PointInt32(x, y));
}
private void MaximizeWindow()
{
if (_appWindow.Presenter is OverlappedPresenter presenter)
presenter.Maximize();
}
private void SaveWindowBounds()
{
ViewModel.Settings.SetValue("mainForm.Location.X", _appWindow.Position.X);
ViewModel.Settings.SetValue("mainForm.Location.Y", _appWindow.Position.Y);
ViewModel.Settings.SetValue("mainForm.Width", _appWindow.Size.Width);
ViewModel.Settings.SetValue("mainForm.Height", _appWindow.Size.Height);
ViewModel.Save();
}
private void UpdateSensorColumnWidths()
{
MeasureStartup("MainWindow.UpdateSensorColumnWidths", UpdateSensorColumnWidthsCore, () => FormattableString.Invariant($"rows={_sensorRowGrids.Count}, cacheEntries={_textMeasurementCache.Count}, deviceWidth={_sensorColumnWidths[0]:F0}, settled={_deviceColumnWidthSettled}"));
}
private void UpdateSensorColumnWidthsCore()
{
double sensorWidth = MeasureText("Sensor", true) + SensorColumnPadding;
double valueWidth = ViewModel.ShowValueColumn ? MeasureText("Value", true) + ValueColumnPadding : 0;
double minWidth = ViewModel.ShowMinColumn ? MeasureText("Min", true) + ValueColumnPadding : 0;
double maxWidth = ViewModel.ShowMaxColumn ? MeasureText("Max", true) + ValueColumnPadding : 0;
foreach (SensorTreeItemViewModel root in ViewModel.RootItems)
MeasureSensorColumnWidths(root, 0, ref sensorWidth, ref valueWidth, ref minWidth, ref maxWidth);
double deviceColumnWidth = NormalizeDeviceColumnWidth(sensorWidth);
if (!_deviceColumnWidthSettled)
deviceColumnWidth = Math.Max(deviceColumnWidth, _stableDeviceColumnWidth);
_sensorColumnWidths[0] = deviceColumnWidth;
_sensorColumnWidths[1] = Math.Ceiling(valueWidth);
_sensorColumnWidths[2] = Math.Ceiling(minWidth);
_sensorColumnWidths[3] = Math.Ceiling(maxWidth);
if (_sensorHeader != null)
ApplySensorColumnWidths(_sensorHeader);
foreach (Grid row in _sensorRowGrids)
ApplySensorColumnWidths(row);
RecordDeviceColumnWidthIfChanged();
}
private void MeasureSensorColumnWidths(
SensorTreeItemViewModel item,
int depth,
ref double sensorWidth,
ref double valueWidth,
ref double minWidth,
ref double maxWidth)
{
if (item.RowVisibility == Visibility.Visible)
{
sensorWidth = Math.Max(sensorWidth, MeasureText(item.Text) + SensorColumnPadding + depth * SensorTreeIndentWidth);
if (ViewModel.ShowValueColumn)
valueWidth = Math.Max(valueWidth, MeasureText(item.Value) + ValueColumnPadding);
if (ViewModel.ShowMinColumn)
minWidth = Math.Max(minWidth, MeasureText(item.Min) + ValueColumnPadding);
if (ViewModel.ShowMaxColumn)
maxWidth = Math.Max(maxWidth, MeasureText(item.Max) + ValueColumnPadding);
}
foreach (SensorTreeItemViewModel child in item.Children)
MeasureSensorColumnWidths(child, depth + 1, ref sensorWidth, ref valueWidth, ref minWidth, ref maxWidth);
}
private double MeasureText(string text, bool bold = false)
{
(string Text, bool Bold) key = (text, bold);
if (_textMeasurementCache.TryGetValue(key, out double width))
return width;
if (_textMeasurementCache.Count >= MaxTextMeasurementCacheEntries)
_textMeasurementCache.Clear();
TextBlock textBlock = new()
{
Text = text,
FontWeight = new global::Windows.UI.Text.FontWeight { Weight = bold ? (ushort)600 : (ushort)400 }
};
textBlock.Measure(new global::Windows.Foundation.Size(double.PositiveInfinity, double.PositiveInfinity));
width = textBlock.DesiredSize.Width;
_textMeasurementCache[key] = width;
return width;
}
private static double NormalizeDeviceColumnWidth(double width)
{
if (!double.IsFinite(width))
width = DefaultSensorColumnWidth;
return Math.Ceiling(Math.Clamp(width, MinimumSensorColumnWidth, MaximumSensorColumnWidth));
}
private void RecordDeviceColumnWidthIfChanged()
{
if (!_deviceColumnWidthSettled || _sensorRowGrids.Count == 0)
return;
double measuredWidth = NormalizeDeviceColumnWidth(_sensorColumnWidths[0]);
_stableDeviceColumnWidth = measuredWidth;
double savedWidth = NormalizeDeviceColumnWidth(ViewModel.Settings.GetValue(DeviceColumnWidthSetting, DefaultSensorColumnWidth));
if (Math.Abs(measuredWidth - savedWidth) < 0.5)
return;
ViewModel.Settings.SetValue(DeviceColumnWidthSetting, measuredWidth);
_startupTrace?.Mark("MainWindow.RecordDeviceColumnWidth", FormattableString.Invariant($"width={measuredWidth:F0}, rows={_sensorRowGrids.Count}"));
}
private void ApplySensorColumnWidths(Grid grid)
{
for (int i = 0; i < grid.ColumnDefinitions.Count && i < _sensorColumnWidths.Length; i++)
grid.ColumnDefinitions[i].Width = new GridLength(_sensorColumnWidths[i]);
}
private Grid CreateSensorRowGrid()
{
Grid grid = new()
{
ColumnDefinitions =
{
new ColumnDefinition(),
new ColumnDefinition(),
new ColumnDefinition(),
new ColumnDefinition()
}
};
ApplySensorColumnWidths(grid);
return grid;
}
private TextBlock CreateHeaderText(string text, int column, Visibility visibility, string? bindingPath = null)
{
TextBlock textBlock = new()
{
Text = text,
FontWeight = new global::Windows.UI.Text.FontWeight { Weight = 600 },
Visibility = visibility
};
if (bindingPath != null)
Bind(textBlock, UIElement.VisibilityProperty, ViewModel, bindingPath);
Grid.SetColumn(textBlock, column);
return textBlock;
}
private static TextBlock CreateValueTextBlock(SensorTreeItemViewModel item, string textPath, string visibilityPath, int column)
{
TextBlock textBlock = new() { TextTrimming = TextTrimming.CharacterEllipsis };
Bind(textBlock, TextBlock.TextProperty, item, textPath);
Bind(textBlock, UIElement.VisibilityProperty, item, visibilityPath);
Grid.SetColumn(textBlock, column);
return textBlock;
}
private static MenuFlyoutSubItem BuildIndexedSubMenu(string text, (string Label, int Value)[] items, Func<int> getter, Action<int> setter)
{
return BuildRadioSubMenu(text, items, getter, setter);
}
private static MenuFlyoutSubItem BuildRadioSubMenu<T>(string text, (string Label, T Value)[] items, Func<T> getter, Action<T> setter)
{
MenuFlyoutSubItem subItem = new() { Text = text };
foreach ((string label, T value) in items)
{
ToggleMenuFlyoutItem item = new()
{
Text = label,
IsChecked = Equals(getter(), value)
};
item.Click += (_, _) =>
{
setter(value);
foreach (ToggleMenuFlyoutItem sibling in subItem.Items.OfType<ToggleMenuFlyoutItem>())
sibling.IsChecked = Equals(sibling.Tag, value);
};
item.Tag = value;
subItem.Items.Add(item);
}
return subItem;
}
private static MenuFlyoutItem CreateMenuItem(string text, RoutedEventHandler handler)
{
MenuFlyoutItem item = new() { Text = text };
item.Click += handler;
return item;
}
private ToggleMenuFlyoutItem CreateToggleItem(string text, string bindingPath)
{
ToggleMenuFlyoutItem item = new() { Text = text };
Bind(item, ToggleMenuFlyoutItem.IsCheckedProperty, ViewModel, bindingPath, BindingMode.TwoWay);
return item;
}
private static string[] GetLocalIPv4Addresses()
{
try
{
return Dns.GetHostEntry(Dns.GetHostName())
.AddressList
.Where(address => address.AddressFamily == AddressFamily.InterNetwork)
.Select(address => address.ToString())
.Distinct(StringComparer.OrdinalIgnoreCase)
.ToArray();
}
catch
{
return [];
}
}
private const int ShowWindowHide = 0;
private const int ShowWindowShow = 5;
private const int ShowWindowMinimize = 6;
private const int ShowWindowRestore = 9;
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool ShowWindow(IntPtr windowHandle, int command);
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool IsWindowVisible(IntPtr windowHandle);
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool IsIconic(IntPtr windowHandle);
private sealed record ParameterEditorRow(IParameter Parameter, Grid Container, CheckBox UseDefault, TextBox Value);
private static void Bind(DependencyObject target, DependencyProperty property, object source, string path, BindingMode mode = BindingMode.OneWay)
{
BindingOperations.SetBinding(target, property, new Binding
{
Source = source,
Path = new PropertyPath(path),
Mode = mode,
UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged
});
}
}