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feat.白板笔色自适应主题

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lincube
2026-04-12 01:10:12 +08:00
parent cf4b8e2132
commit cb96180118
1 changed files with 42 additions and 50 deletions
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92
LanMountainDesktop/Views/Components/WhiteboardWidget.axaml.cs
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@@ -40,13 +40,12 @@ public partial class WhiteboardWidget : UserControl, IDesktopComponentWidget, IC
private WhiteboardToolMode _toolMode = WhiteboardToolMode.Pen;
private bool? _isNightModeApplied;
private SKColor _selectedInkColor = SKColors.Black;
private bool _isUserCustomColor;
private float _selectedInkThickness = 2.5f;
private string _componentId = BuiltInComponentIds.DesktopWhiteboard;
private string _placementId = string.Empty;
private int _noteRetentionDays = WhiteboardNoteRetentionPolicy.DefaultDays;
private bool _isApplyingPersistedSnapshot;
private bool? _lastBitmapCacheEnabled;
private int _lastBitmapCacheSize;
private bool _noteDirty;
private int _noteLoadRevision;
private bool _disposed;
@@ -121,10 +120,11 @@ public partial class WhiteboardWidget : UserControl, IDesktopComponentWidget, IC
settings.IgnorePressure = true;
settings.InkThickness = _selectedInkThickness;
settings.EraserSize = new Size(20, 20);
settings.IsBitmapCacheEnabled = true;
settings.MaxBitmapCacheSize = 2048;
InkCanvas.StrokeCollected += OnInkCanvasStrokeCollected;
InkCanvas.PointerReleased += OnInkCanvasPointerReleased;
InkCanvas.PointerCaptureLost += OnInkCanvasPointerCaptureLost;
UpdateInkCanvasCacheSettings(forceRefresh: true);
}
public void ApplyCellSize(double cellSize)
@@ -158,7 +158,6 @@ public partial class WhiteboardWidget : UserControl, IDesktopComponentWidget, IC
var settings = InkCanvas.AvaloniaSkiaInkCanvas.Settings;
var eraserSize = Math.Clamp(_currentCellSize * 0.42, 12, 44);
settings.EraserSize = new Size(eraserSize, eraserSize);
UpdateInkCanvasCacheSettings(forceRefresh: false);
}
private void ApplyThemeVisual(bool force)
@@ -169,6 +168,7 @@ public partial class WhiteboardWidget : UserControl, IDesktopComponentWidget, IC
return;
}
var wasNightMode = _isNightModeApplied;
_isNightModeApplied = isNightMode;
RootBorder.Background = new SolidColorBrush(isNightMode ? Color.Parse("#FF181B22") : Color.Parse("#FFF1F4F9"));
@@ -177,9 +177,39 @@ public partial class WhiteboardWidget : UserControl, IDesktopComponentWidget, IC
ToolbarBorder.Background = new SolidColorBrush(isNightMode ? Color.Parse("#1AFFFFFF") : Color.Parse("#E6FFFFFF"));
ToolbarBorder.BorderBrush = new SolidColorBrush(isNightMode ? Color.Parse("#26FFFFFF") : Color.Parse("#16000000"));
ApplyThemeDefaultInkColor(isNightMode, wasNightMode);
RefreshToolButtonVisuals();
}
private void ApplyThemeDefaultInkColor(bool isNightMode, bool? wasNightMode)
{
if (_isUserCustomColor || wasNightMode == isNightMode)
{
return;
}
var oldDefault = wasNightMode == true ? SKColors.White : SKColors.Black;
var newDefault = isNightMode ? SKColors.White : SKColors.Black;
if (_selectedInkColor == oldDefault)
{
_selectedInkColor = newDefault;
if (_toolMode == WhiteboardToolMode.Pen)
{
InkCanvas.AvaloniaSkiaInkCanvas.Settings.InkColor = _selectedInkColor;
}
if (InkColorPicker is not null)
{
InkColorPicker.Color = new Color(
_selectedInkColor.Alpha,
_selectedInkColor.Red,
_selectedInkColor.Green,
_selectedInkColor.Blue);
}
}
}
public void SetComponentPlacementContext(string componentId, string? placementId)
{
var nextComponentId = string.IsNullOrWhiteSpace(componentId)
@@ -431,7 +461,9 @@ public partial class WhiteboardWidget : UserControl, IDesktopComponentWidget, IC
private void OnColorPickerColorChanged(object? sender, ColorChangedEventArgs e)
{
var color = e.NewColor;
SetInkColor(new SKColor(color.R, color.G, color.B, color.A));
var skColor = new SKColor(color.R, color.G, color.B, color.A);
_isUserCustomColor = skColor != SKColors.Black && skColor != SKColors.White;
SetInkColor(skColor);
}
private void OnInkThicknessSliderValueChanged(object? sender, RangeBaseValueChangedEventArgs e)
@@ -713,7 +745,8 @@ public partial class WhiteboardWidget : UserControl, IDesktopComponentWidget, IC
InkCanvas.AvaloniaSkiaInkCanvas.AddStaticStroke(staticStroke);
}
UpdateInkCanvasCacheSettings(forceRefresh: true);
InkCanvas.AvaloniaSkiaInkCanvas.UpdateBitmapCache();
InkCanvas.InvalidateVisual();
}
private static InkStylusPoint ConvertStylusPoint(WhiteboardStylusPointSnapshot point)
@@ -766,7 +799,9 @@ public partial class WhiteboardWidget : UserControl, IDesktopComponentWidget, IC
}
}
UpdateInkCanvasCacheSettings(forceRefresh: true);
InkCanvas.AvaloniaSkiaInkCanvas.UseBitmapCache(false);
InkCanvas.AvaloniaSkiaInkCanvas.InvalidateBitmapCache();
InkCanvas.InvalidateVisual();
}
private bool HasValidPersistenceContext()
@@ -784,47 +819,4 @@ public partial class WhiteboardWidget : UserControl, IDesktopComponentWidget, IC
return Array.Empty<InkStylusPoint>();
}
private void UpdateInkCanvasCacheSettings(bool forceRefresh)
{
var renderScaling = TopLevel.GetTopLevel(this)?.RenderScaling ?? 1d;
var widthPx = Math.Max(1d, CanvasBorder.Bounds.Width * renderScaling);
var heightPx = Math.Max(1d, CanvasBorder.Bounds.Height * renderScaling);
var longestSide = Math.Max(widthPx, heightPx);
var area = widthPx * heightPx;
var cacheEnabled = longestSide <= 1536d && area <= 1_400_000d;
var cacheSize = (int)Math.Clamp(Math.Ceiling(longestSide), 384d, 1536d);
if (!forceRefresh &&
_lastBitmapCacheEnabled == cacheEnabled &&
_lastBitmapCacheSize == cacheSize)
{
return;
}
_lastBitmapCacheEnabled = cacheEnabled;
_lastBitmapCacheSize = cacheSize;
var settings = InkCanvas.AvaloniaSkiaInkCanvas.Settings;
settings.IsBitmapCacheEnabled = cacheEnabled;
settings.MaxBitmapCacheSize = cacheSize;
try
{
InkCanvas.AvaloniaSkiaInkCanvas.UseBitmapCache(cacheEnabled);
if (cacheEnabled)
{
InkCanvas.AvaloniaSkiaInkCanvas.UpdateBitmapCache();
}
else
{
InkCanvas.AvaloniaSkiaInkCanvas.InvalidateBitmapCache();
InkCanvas.InvalidateVisual();
}
}
catch
{
// Keep drawing available even if the underlying cache backend rejects the cache update.
}
}
}