From 856762f555ac095954ab8897635b73169639ee21 Mon Sep 17 00:00:00 2001
From: kriastans <kriastans@protonmail.com>
Date: Sun, 22 Sep 2024 16:28:59 +0800
Subject: [PATCH] =?UTF-8?q?[update]=20IccInkCanvas=20=E5=AE=9E=E6=97=B6?=
 =?UTF-8?q?=E7=AC=94=E9=94=8B=E4=BC=98=E5=8C=96?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../MainWindow.xaml                           |  14 +-
 .../MainWindow.xaml.cs                        |  45 ++++-
 InkCanvasForClass.IccInkCanvas/IccBoard.xaml  |   2 +-
 .../IccBoard.xaml.cs                          |  13 ++
 .../IccInkCanvas.cs                           | 190 +++++++++++++-----
 .../Settings/BoardSettings.cs                 |  93 +++++++--
 .../Settings/Nib.cs                           |   8 +-
 7 files changed, 302 insertions(+), 63 deletions(-)

diff --git a/InkCanvasForClass.IccInkCanvas.Demo/MainWindow.xaml b/InkCanvasForClass.IccInkCanvas.Demo/MainWindow.xaml
index a573bd0..d8251ca 100644
--- a/InkCanvasForClass.IccInkCanvas.Demo/MainWindow.xaml
+++ b/InkCanvasForClass.IccInkCanvas.Demo/MainWindow.xaml
@@ -10,11 +10,23 @@
     <Grid>
         <StackPanel Orientation="Vertical" Margin="8">
             <TextBlock FontSize="24">IccInkCanvasDemo</TextBlock>
-            <iccInkCanvas:IccBoard Name="IccBoard" Width="512" Height="512"/>
+            <iccInkCanvas:IccBoard EditingMode="None" Name="IccBoard" Width="512" Height="512"/>
             <WrapPanel Orientation="Horizontal">
                 <Button Content="EditingMode = None" Click="EditingModeChangeToNone_ButtonClick"/>
                 <Button Content="EditingMode = Writing" Click="EditingModeChangeToWriting_ButtonClick"/>
             </WrapPanel>
+            <TextBlock Name="BoardSettingsTextBlock"/>
+            <WrapPanel Orientation="Horizontal">
+                <Button Content="BoardSettings.NibSize = 2" Click="BoardSettingsNibSizeChangeTo2_ButtonClick"/>
+                <Button Content="BoardSettings.NibSize = 4" Click="BoardSettingsNibSizeChangeTo4_ButtonClick"/>
+                <Button Content="BoardSettings.NibSize = 6" Click="BoardSettingsNibSizeChangeTo6_ButtonClick"/>
+                <Button Content="BoardSettings.NibColor = Red" Click="BoardSettingsNibColorChangeToRed_ButtonClick"/>
+                <Button Content="BoardSettings.NibColor = Blue" Click="BoardSettingsNibColorChangeToBlue_ButtonClick"/>
+                <Button Content="BoardSettings.NibColor = Green" Click="BoardSettingsNibColorChangeToGreen_ButtonClick"/>
+                <Button Content="BoardSettings.NibColor = Black" Click="BoardSettingsNibColorChangeToBlack_ButtonClick"/>
+                <Button Content="BoardSettings.StrokeNibStyle = Solid" Click="BoardSettingsStrokeNibStyleChangeToSolid_ButtonClick"/>
+                <Button Content="BoardSettings.StrokeNibStyle = Beautiful" Click="BoardSettingsStrokeNibStyleChangeToBeautiful_ButtonClick"/>
+            </WrapPanel>
         </StackPanel>
     </Grid>
 </Window>
diff --git a/InkCanvasForClass.IccInkCanvas.Demo/MainWindow.xaml.cs b/InkCanvasForClass.IccInkCanvas.Demo/MainWindow.xaml.cs
index b327b10..1a56104 100644
--- a/InkCanvasForClass.IccInkCanvas.Demo/MainWindow.xaml.cs
+++ b/InkCanvasForClass.IccInkCanvas.Demo/MainWindow.xaml.cs
@@ -22,13 +22,56 @@ namespace InkCanvasForClass.IccInkCanvas.Demo {
     public partial class MainWindow : Window {
         public MainWindow() {
             InitializeComponent();
+            RegisterEventsForBoardSettings();
+            UpdateBoardSettingsTextBlock();
+        }
+
+        private void UpdateBoardSettingsTextBlock() {
+            BoardSettingsTextBlock.Text =
+                $@"Width:{IccBoard.BoardSettings.NibWidth}  Height:{IccBoard.BoardSettings.NibHeight}  Color:{IccBoard.BoardSettings.NibColor.ToString()}";
+        }
+
+        private void RegisterEventsForBoardSettings() {
+            IccBoard.BoardSettings.NibWidthChanged += (s, e) => UpdateBoardSettingsTextBlock();
+            IccBoard.BoardSettings.NibHeightChanged += (s, e) => UpdateBoardSettingsTextBlock();
+            IccBoard.BoardSettings.NibColorChanged += (s, e) => UpdateBoardSettingsTextBlock();
         }
 
         private void EditingModeChangeToNone_ButtonClick(object sender, RoutedEventArgs e) {
-            IccBoard.EditingMode = EditingMode.None;
+            IccBoard.EditingMode = EditingMode.NoneWithHitTest;
         }
         private void EditingModeChangeToWriting_ButtonClick(object sender, RoutedEventArgs e) {
             IccBoard.EditingMode = EditingMode.Writing;
         }
+        private void BoardSettingsNibSizeChangeTo2_ButtonClick(object sender, RoutedEventArgs e) {
+            IccBoard.BoardSettings.NibWidth = 2;
+            IccBoard.BoardSettings.NibHeight = 2;
+        }
+        private void BoardSettingsNibSizeChangeTo4_ButtonClick(object sender, RoutedEventArgs e) {
+            IccBoard.BoardSettings.NibWidth = 4;
+            IccBoard.BoardSettings.NibHeight = 4;
+        }
+        private void BoardSettingsNibSizeChangeTo6_ButtonClick(object sender, RoutedEventArgs e) {
+            IccBoard.BoardSettings.NibWidth = 6;
+            IccBoard.BoardSettings.NibHeight = 6;
+        }
+        private void BoardSettingsNibColorChangeToRed_ButtonClick(object sender, RoutedEventArgs e) {
+            IccBoard.BoardSettings.NibColor = Color.FromRgb(220, 38, 38);
+        }
+        private void BoardSettingsNibColorChangeToBlue_ButtonClick(object sender, RoutedEventArgs e) {
+            IccBoard.BoardSettings.NibColor = Color.FromRgb(37, 99, 235);
+        }
+        private void BoardSettingsNibColorChangeToGreen_ButtonClick(object sender, RoutedEventArgs e) {
+            IccBoard.BoardSettings.NibColor = Color.FromRgb(34, 197, 94);
+        }
+        private void BoardSettingsNibColorChangeToBlack_ButtonClick(object sender, RoutedEventArgs e) {
+            IccBoard.BoardSettings.NibColor = Colors.Black;
+        }
+        private void BoardSettingsStrokeNibStyleChangeToSolid_ButtonClick(object sender, RoutedEventArgs e) {
+            IccBoard.BoardSettings.StrokeNibStyle = StrokeNibStyle.Solid;
+        }
+        private void BoardSettingsStrokeNibStyleChangeToBeautiful_ButtonClick(object sender, RoutedEventArgs e) {
+            IccBoard.BoardSettings.StrokeNibStyle = StrokeNibStyle.Beautiful;
+        }
     }
 }
diff --git a/InkCanvasForClass.IccInkCanvas/IccBoard.xaml b/InkCanvasForClass.IccInkCanvas/IccBoard.xaml
index e12483e..0f06a0f 100644
--- a/InkCanvasForClass.IccInkCanvas/IccBoard.xaml
+++ b/InkCanvasForClass.IccInkCanvas/IccBoard.xaml
@@ -10,7 +10,7 @@
         <Canvas Width="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorLevel=1, AncestorType={x:Type UserControl}}, Path=ActualWidth}"
                 Height="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorLevel=1, AncestorType={x:Type UserControl}}, Path=ActualHeight}"
                 ClipToBounds="True" x:Name="InkCanvasHostCanvas" x:FieldModifier="private">
-            <local:IccInkCanvas  x:Name="InkCanvas" x:FieldModifier="private" Loaded="IccInkCanvas_Loaded"/>
+            <local:IccInkCanvas x:Name="InkCanvas" x:FieldModifier="private" Loaded="IccInkCanvas_Loaded"/>
         </Canvas>
     </Grid>
 </UserControl>
diff --git a/InkCanvasForClass.IccInkCanvas/IccBoard.xaml.cs b/InkCanvasForClass.IccInkCanvas/IccBoard.xaml.cs
index 14eeb40..fef38ba 100644
--- a/InkCanvasForClass.IccInkCanvas/IccBoard.xaml.cs
+++ b/InkCanvasForClass.IccInkCanvas/IccBoard.xaml.cs
@@ -96,6 +96,16 @@ namespace InkCanvasForClass.IccInkCanvas {
 
         #endregion
 
+        #region BoardSettings
+
+        private void RegisterEventsForBoardSettings() {
+            BoardSettings.NibWidthChanged += (s,e)=>InkCanvas.DefaultDrawingAttributes.Width = BoardSettings.NibWidth;
+            BoardSettings.NibHeightChanged += (s,e)=>InkCanvas.DefaultDrawingAttributes.Height = BoardSettings.NibHeight;
+            BoardSettings.NibColorChanged += (s,e)=>InkCanvas.DefaultDrawingAttributes.Color = BoardSettings.NibColor;
+        }
+
+        #endregion
+
         public IccBoard() {
             InitializeComponent();
         }
@@ -123,6 +133,9 @@ namespace InkCanvasForClass.IccInkCanvas {
             ic.DefaultDrawingAttributes.Color = BoardSettings.NibColor;
 
             ic.BoardSettings = BoardSettings;
+
+            // BoardSettings 事件注册
+            RegisterEventsForBoardSettings();
         }
 
     }
diff --git a/InkCanvasForClass.IccInkCanvas/IccInkCanvas.cs b/InkCanvasForClass.IccInkCanvas/IccInkCanvas.cs
index c2fd1aa..af91b3d 100644
--- a/InkCanvasForClass.IccInkCanvas/IccInkCanvas.cs
+++ b/InkCanvasForClass.IccInkCanvas/IccInkCanvas.cs
@@ -17,12 +17,21 @@ using InkCanvasForClass.IccInkCanvas.Settings;
 namespace InkCanvasForClass.IccInkCanvas {
     class CustomDynamicRenderer : DynamicRenderer {
 
+        private class StylusProcessedCallbackData {
+            public int StylusDeviceID;
+            public int TabletDeviceID;
+        }
+
         private Point prevPoint;
 
         private IccInkCanvas _inkCanvas;
 
         private List<StylusPoint> pointsList = new List<StylusPoint>();
 
+        private StylusProcessedCallbackData _stylusProcessedCallbackData;
+
+        public InputtingDeviceType InputType = InputtingDeviceType.None;
+
         private void ClearPointsList() {
             pointsList.Clear();
         }
@@ -41,14 +50,38 @@ namespace InkCanvasForClass.IccInkCanvas {
         protected override void OnStylusDown(RawStylusInput rawStylusInput) {
             prevPoint = new Point(double.NegativeInfinity, double.NegativeInfinity);
             ClearPointsList();
+
+            // 判断当前设备类型
+            var styDevice = rawStylusInput.StylusDeviceId;
+            var tabletDevice = rawStylusInput.TabletDeviceId;
+
             var pts = rawStylusInput.GetStylusPoints();
             if (pts.Count == 1) {
                 PushPoint(pts.Single());
             } else if (pts.Count > 1) {
                 PushPoint(pts[pts.Count-1]);
             }
-            Trace.WriteLine(pointsList.Count);
+
             base.OnStylusDown(rawStylusInput);
+
+            _stylusProcessedCallbackData = new StylusProcessedCallbackData() {
+                StylusDeviceID = styDevice,
+                TabletDeviceID = tabletDevice,
+            };
+        }
+
+        protected override void OnStylusDownProcessed(object callbackData, bool targetVerified) {
+            var data = _stylusProcessedCallbackData;
+            var tabletDevices = Tablet.TabletDevices;
+            if (data.StylusDeviceID == 0 && data.TabletDeviceID == 0) InputType = InputtingDeviceType.Mouse;
+            foreach (TabletDevice tabletDevice in tabletDevices) {
+                if (tabletDevice.Id == data.TabletDeviceID && tabletDevice.Type == TabletDeviceType.Stylus)
+                    InputType = InputtingDeviceType.Stylus;
+                if (tabletDevice.Id == data.TabletDeviceID && tabletDevice.Type == TabletDeviceType.Touch)
+                    InputType = InputtingDeviceType.Touch;
+            }
+            
+            base.OnStylusDownProcessed(callbackData, targetVerified);
         }
 
         protected override void OnStylusMove(RawStylusInput rawStylusInput) {
@@ -57,56 +90,107 @@ namespace InkCanvasForClass.IccInkCanvas {
             if (pts.Count == 1) {
                 PushPoint(pts.Single());
             } else if (pts.Count > 1) {
-                PushPoint(pts[pts.Count-1]);
+                if (InputType != InputtingDeviceType.Stylus) PushPoint(pts[pts.Count-1]);
             }
-            Trace.WriteLine(pointsList.Count);
+        }
+
+        protected override void OnStylusUpProcessed(object callbackData, bool targetVerified) {
+            //InputType = InputtingDeviceType.None;
+            // TODO: 触摸支持
+            base.OnStylusUpProcessed(callbackData, targetVerified);
+        }
+
+        private void DrawBeautifulNibStroke(DrawingContext drawingContext) {
+            try {
+                var sp = new StylusPointCollection();
+                var n = pointsList.Count - 1;
+                var pressure = 0.1;
+                var x = 10;
+                if (n == 1) return;
+                if (n >= x) {
+                    for (var i = 0; i < n - x; i++) {
+                        var point = new StylusPoint();
+
+                        point.PressureFactor = (float)0.5;
+                        point.X = pointsList[i].X;
+                        point.Y = pointsList[i].Y;
+                        sp.Add(point);
+                    }
+
+                    for (var i = n - x; i <= n; i++) {
+                        var point = new StylusPoint();
+
+                        point.PressureFactor = (float)((0.5 - pressure) * (n - i) / x + pressure);
+                        point.X = pointsList[i].X;
+                        point.Y = pointsList[i].Y;
+                        sp.Add(point);
+                    }
+                } else {
+                    for (var i = 0; i <= n; i++) {
+                        var point = new StylusPoint();
+
+                        point.PressureFactor = (float)(0.4 * (n - i) / n + pressure);
+                        point.X = pointsList[i].X;
+                        point.Y = pointsList[i].Y;
+                        sp.Add(point);
+                    }
+                }
+
+                var da = DrawingAttributes.Clone();
+                da.Width -= 0.5;
+                da.Height -= 0.5;
+                var stk = new Stroke(sp, da);
+                stk.Draw(drawingContext);
+            } catch {}
+        }
+
+        private void DrawSolidNibStroke(DrawingContext drawingContext) {
+            try {
+                var sp = new StylusPointCollection();
+                foreach (var pt in pointsList) {
+                    var point = new StylusPoint();
+                    point.PressureFactor = (float)0.5;
+                    point.X = pt.X;
+                    point.Y = pt.Y;
+                    sp.Add(point);
+                }
+                var da = DrawingAttributes.Clone();
+                da.Width -= 0.5;
+                da.Height -= 0.5;
+                var stk = new Stroke(sp, da);
+                stk.Draw(drawingContext);
+            }
+            catch {}
+        }
+
+        private void DrawSolidNibStrokeForStylus(StylusPointCollection stylusPoints, DrawingContext drawingContext) {
+            try {
+                var sp = new StylusPointCollection();
+                foreach (var pt in stylusPoints) {
+                    var point = new StylusPoint();
+                    point.PressureFactor = (float)0.5;
+                    point.X = pt.X;
+                    point.Y = pt.Y;
+                    sp.Add(point);
+                }
+                var da = DrawingAttributes.Clone();
+                var stk = new Stroke(sp, da);
+                stk.Draw(drawingContext);
+            }
+            catch {}
         }
 
         protected override void OnDraw(DrawingContext drawingContext,
             StylusPointCollection stylusPoints,
             Geometry geometry, Brush fillBrush) {
-            if (_inkCanvas.BoardSettings.StrokeNibStyle == StrokeNibStyle.Beautiful) {
-                try {
-                    var sp = new StylusPointCollection();
-                    var n = pointsList.Count - 1;
-                    var pressure = 0.1;
-                    var x = 10;
-                    if (n == 1) return;
-                    if (n >= x) {
-                        for (var i = 0; i < n - x; i++) {
-                            var point = new StylusPoint();
-
-                            point.PressureFactor = (float)0.5;
-                            point.X = pointsList[i].X;
-                            point.Y = pointsList[i].Y;
-                            sp.Add(point);
-                        }
-
-                        for (var i = n - x; i <= n; i++) {
-                            var point = new StylusPoint();
-
-                            point.PressureFactor = (float)((0.5 - pressure) * (n - i) / x + pressure);
-                            point.X = pointsList[i].X;
-                            point.Y = pointsList[i].Y;
-                            sp.Add(point);
-                        }
-                    } else {
-                        for (var i = 0; i <= n; i++) {
-                            var point = new StylusPoint();
-
-                            point.PressureFactor = (float)(0.4 * (n - i) / n + pressure);
-                            point.X = pointsList[i].X;
-                            point.Y = pointsList[i].Y;
-                            sp.Add(point);
-                        }
-                    }
-
-                    var da = DrawingAttributes.Clone();
-                    da.Width -= 0.5;
-                    da.Height -= 0.5;
-                    var stk = new Stroke(sp, da);
-                    stk.Draw(drawingContext);
-                } catch {}
+            if (_inkCanvas.BoardSettings.StrokeNibStyle == StrokeNibStyle.Beautiful && InputType != InputtingDeviceType.Stylus) {
+                DrawBeautifulNibStroke(drawingContext);
+            } else if (_inkCanvas.BoardSettings.StrokeNibStyle == StrokeNibStyle.Solid && InputType != InputtingDeviceType.Stylus) {
+                DrawSolidNibStroke(drawingContext);
+            } else if (_inkCanvas.BoardSettings.StrokeNibStyle == StrokeNibStyle.Solid && InputType == InputtingDeviceType.Stylus) {
+                DrawSolidNibStrokeForStylus(stylusPoints, drawingContext);
+            } else if (_inkCanvas.BoardSettings.StrokeNibStyle == StrokeNibStyle.Default) {
+                base.OnDraw(drawingContext, stylusPoints, geometry, fillBrush);
             } else {
                 base.OnDraw(drawingContext, stylusPoints, geometry, fillBrush);
             }
@@ -160,7 +244,7 @@ namespace InkCanvasForClass.IccInkCanvas {
                 this.Strokes.Add(customStroke);
             }
 
-            if (BoardSettings.StrokeNibStyle == StrokeNibStyle.Beautiful) {
+            if (BoardSettings.StrokeNibStyle == StrokeNibStyle.Beautiful && customDynamicRenderer.InputType != InputtingDeviceType.Stylus) {
                 try {
                     var stylusPoints = new StylusPointCollection();
                     var n = customStroke.StylusPoints.Count - 1;
@@ -199,6 +283,18 @@ namespace InkCanvasForClass.IccInkCanvas {
 
                     customStroke.StylusPoints = stylusPoints;
                 } catch { }
+            } else if (BoardSettings.StrokeNibStyle == StrokeNibStyle.Solid) {
+                try {
+                    var sp = new StylusPointCollection();
+                    foreach (var pt in customStroke.StylusPoints) {
+                        var point = new StylusPoint();
+                        point.PressureFactor = (float)0.5;
+                        point.X = pt.X;
+                        point.Y = pt.Y;
+                        sp.Add(point);
+                    }
+                    customStroke.StylusPoints = sp;
+                } catch { }
             }
 
             InkCanvasStrokeCollectedEventArgs args =
@@ -207,5 +303,7 @@ namespace InkCanvasForClass.IccInkCanvas {
         }
 
         public event EventHandler<RoutedEventArgs> DeleteKeyCommandFired;
+
+        public InputtingDeviceType InputtingDeviceType { get; private set; }
     }
 }
diff --git a/InkCanvasForClass.IccInkCanvas/Settings/BoardSettings.cs b/InkCanvasForClass.IccInkCanvas/Settings/BoardSettings.cs
index 8b23815..23a1079 100644
--- a/InkCanvasForClass.IccInkCanvas/Settings/BoardSettings.cs
+++ b/InkCanvasForClass.IccInkCanvas/Settings/BoardSettings.cs
@@ -9,34 +9,103 @@ namespace InkCanvasForClass.IccInkCanvas.Settings {
     public class BoardSettings {
         public BoardSettings() {}
 
+        private double _NibWidth { get; set; } = 4.00;
+
         /// <summary>
         /// 笔尖长度
         /// </summary>
-        public double NibWidth { get; set; } = 4.00;
+        public double NibWidth {
+            get => _NibWidth;
+            set {
+                if (Math.Abs(_NibWidth - value) < 0.0001) return;
+                _NibWidth = value;
+                NibWidthChanged?.Invoke(this,EventArgs.Empty);
+            }
+        }
+
+        private double _NibHeight { get; set; } = 4.00;
 
         /// <summary>
         /// 笔尖高度
         /// </summary>
-        public double NibHeight { get; set; } = 4.00;
-
-        /// <summary>
-        /// 笔尖大小，适合笔尖类型为普通笔时使用
-        /// </summary>
-        public double NibSize {
-            get => (NibWidth + NibHeight) / 2;
-            set => NibWidth = NibHeight = value;
+        public double NibHeight { 
+            get => _NibWidth;
+            set {
+                if (Math.Abs(_NibHeight - value) < 0.0001) return;
+                _NibHeight = value;
+                NibHeightChanged?.Invoke(this,EventArgs.Empty);
+            }
         }
 
-        public NibType NibType { get; set; } = NibType.Default;
+        private NibType _NibType { get; set; } = NibType.Default;
+
+        public NibType NibType {
+            get => _NibType;
+            set {
+                if (_NibType == value) return;
+                _NibType = value;
+                NibTypeChanged?.Invoke(this,EventArgs.Empty);
+            }
+        }
+
+        private Color _NibColor { get; set; } = Colors.Black;
 
         /// <summary>
         /// 笔尖颜色
         /// </summary>
-        public Color NibColor { get; set; } = Colors.Black;
+        public Color NibColor {
+            get => _NibColor;
+            set {
+                if (_NibColor.Equals(value)) return;
+                _NibColor = value;
+                NibColorChanged?.Invoke(this,EventArgs.Empty);
+            }
+        }
+
+        private StrokeNibStyle _StrokeNibStyle { get; set; } = StrokeNibStyle.Beautiful;
 
         /// <summary>
         /// 笔锋样式类型，默认有笔锋
         /// </summary>
-        public StrokeNibStyle StrokeNibStyle { get; set; } = StrokeNibStyle.Beautiful;
+        public StrokeNibStyle StrokeNibStyle {
+            get => _StrokeNibStyle;
+            set {
+                if (_StrokeNibStyle == value) return;
+                _StrokeNibStyle = value;
+                StrokeNibStyleChanged?.Invoke(this,EventArgs.Empty);
+            }
+        }
+
+        private bool _IsForceIgnoreStylusPressure { get; set; } = false;
+
+        /// <summary>
+        /// 强制忽略支持压力传感的输入设备返回的真实压力值（比如支持压感的手写笔）
+        /// </summary>
+        public bool IsForceIgnoreStylusPressure {
+            get => _IsForceIgnoreStylusPressure;
+            set {
+                if (_IsForceIgnoreStylusPressure == value) return;
+                _IsForceIgnoreStylusPressure = value;
+                IsForceIgnoreStylusPressureChanged?.Invoke(this,EventArgs.Empty);
+            }
+        }
+
+        #region Events
+
+        public event EventHandler<EventArgs> NibWidthChanged;
+        public event EventHandler<EventArgs> NibHeightChanged;
+        public event EventHandler<EventArgs> NibColorChanged;
+        public event EventHandler<EventArgs> NibTypeChanged;
+        public event EventHandler<EventArgs> StrokeNibStyleChanged;
+        public event EventHandler<EventArgs> IsForceIgnoreStylusPressureChanged;
+
+        #endregion
+    }
+
+    public enum InputtingDeviceType {
+        None,
+        Mouse,
+        Touch,
+        Stylus
     }
 }
diff --git a/InkCanvasForClass.IccInkCanvas/Settings/Nib.cs b/InkCanvasForClass.IccInkCanvas/Settings/Nib.cs
index c0960e7..62faaff 100644
--- a/InkCanvasForClass.IccInkCanvas/Settings/Nib.cs
+++ b/InkCanvasForClass.IccInkCanvas/Settings/Nib.cs
@@ -25,11 +25,15 @@ namespace InkCanvasForClass.IccInkCanvas.Settings {
     /// </summary>
     public enum StrokeNibStyle {
         /// <summary>
-        /// 无笔锋
+        /// 默认，直接根据输入设备提供的压力值正常渲染
+        /// </summary>
+        Default,
+        /// <summary>
+        /// 强制无笔锋
         /// </summary>
         Solid,
         /// <summary>
-        /// 有笔锋，基于固定点集算法计算
+        /// 有笔锋，基于固定点集算法计算，触笔设备不套用算法
         /// </summary>
         Beautiful
     }