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CJKmkp
2025-08-23 21:39:21 +08:00
parent 7bac32e3c4
commit f67b4db4ba
562 changed files with 37981 additions and 38280 deletions
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InkCanvasForClass/MainWindow_cs/MW_InkCanvas.cs
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using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Diagnostics;
using System.Linq;
using System.Reflection;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Input.StylusPlugIns;
using System.Windows.Media;
using iNKORE.UI.WPF.Helpers;
namespace Ink_Canvas {
public class IccStroke : Stroke {
public IccStroke(StylusPointCollection stylusPoints, DrawingAttributes drawingAttributes)
: base(stylusPoints, drawingAttributes) { }
public static Guid StrokeShapeTypeGuid = new Guid("6537b29c-557f-487f-800b-cb30a8f1de78");
public static Guid StrokeIsShapeGuid = new Guid("40eff5db-9346-4e42-bd46-7b0eb19d0018");
public StylusPointCollection RawStylusPointCollection { get; set; }
public MainWindow.ShapeDrawingHelper.ArrowLineConfig ArrowLineConfig { get; set; } =
new MainWindow.ShapeDrawingHelper.ArrowLineConfig();
/// <summary>
/// 根据这个属性判断当前 Stroke 是否是原始输入
/// </summary>
public bool IsRawStylusPoints = true;
/// <summary>
/// 根据这个属性决定在绘制 Stroke 时是否需要在直线形状中，在两点构成直线上分布点，用于墨迹的范围框选。
/// </summary>
public bool IsDistributePointsOnLineShape = true;
/// <summary>
/// 指示该墨迹是否来自一个完整墨迹被擦除后的一部分墨迹，仅用于形状墨迹。
/// </summary>
public bool IsErasedStrokePart = false;
// 自定义的墨迹渲染
protected override void DrawCore(DrawingContext drawingContext,
DrawingAttributes drawingAttributes) {
if (!(this.ContainsPropertyData(StrokeIsShapeGuid) &&
(bool)this.GetPropertyData(StrokeIsShapeGuid) == true)) {
base.DrawCore(drawingContext, drawingAttributes);
return;
}
if ((int)this.GetPropertyData(StrokeShapeTypeGuid) == (int)MainWindow.ShapeDrawingType.DashedLine ||
(int)this.GetPropertyData(StrokeShapeTypeGuid) == (int)MainWindow.ShapeDrawingType.Line ||
(int)this.GetPropertyData(StrokeShapeTypeGuid) == (int)MainWindow.ShapeDrawingType.DottedLine ||
(int)this.GetPropertyData(StrokeShapeTypeGuid) == (int)MainWindow.ShapeDrawingType.ArrowOneSide ||
(int)this.GetPropertyData(StrokeShapeTypeGuid) == (int)MainWindow.ShapeDrawingType.ArrowTwoSide) {
if (StylusPoints.Count < 2) {
base.DrawCore(drawingContext, drawingAttributes);
return;
}
var pts = new List<Point>(this.StylusPoints.ToPoints());
if (IsDistributePointsOnLineShape && (
(int)this.GetPropertyData(StrokeShapeTypeGuid) == (int)MainWindow.ShapeDrawingType.DashedLine ||
(int)this.GetPropertyData(StrokeShapeTypeGuid) == (int)MainWindow.ShapeDrawingType.Line ||
(int)this.GetPropertyData(StrokeShapeTypeGuid) == (int)MainWindow.ShapeDrawingType.DottedLine) && IsRawStylusPoints) {
IsRawStylusPoints = false;
RawStylusPointCollection = StylusPoints.Clone();
var pointList = new List<Point> { new Point(StylusPoints[0].X, StylusPoints[0].Y) };
pointList.AddRange(MainWindow.ShapeDrawingHelper.DistributePointsOnLine(new Point(StylusPoints[0].X, StylusPoints[0].Y),new Point(StylusPoints[1].X, StylusPoints[1].Y)));
pointList.Add(new Point(StylusPoints[1].X, StylusPoints[1].Y));
StylusPoints = new StylusPointCollection(pointList);
}
StreamGeometry geometry = new StreamGeometry();
using (StreamGeometryContext ctx = geometry.Open()) {
ctx.BeginFigure(pts[0], false , false);
pts.RemoveAt(0);
ctx.PolyLineTo(pts,true, true);
}
var pen = new Pen(new SolidColorBrush(DrawingAttributes.Color),
(drawingAttributes.Width + drawingAttributes.Height) / 2) {
DashCap = PenLineCap.Round,
StartLineCap = PenLineCap.Round,
EndLineCap = PenLineCap.Round,
};
if ((int)this.GetPropertyData(StrokeShapeTypeGuid) != (int)MainWindow.ShapeDrawingType.Line &&
(int)this.GetPropertyData(StrokeShapeTypeGuid) != (int)MainWindow.ShapeDrawingType.ArrowOneSide &&
(int)this.GetPropertyData(StrokeShapeTypeGuid) != (int)MainWindow.ShapeDrawingType.ArrowTwoSide)
pen.DashStyle = (int)this.GetPropertyData(StrokeShapeTypeGuid) == (int)MainWindow.ShapeDrawingType.DottedLine ? DashStyles.Dot : DashStyles.Dash;
if ((int)this.GetPropertyData(StrokeShapeTypeGuid) == (int)MainWindow.ShapeDrawingType.ArrowOneSide && IsRawStylusPoints) {
IsRawStylusPoints = false;
pts = new List<Point>(this.StylusPoints.ToPoints());
RawStylusPointCollection = StylusPoints.Clone();
double w = ArrowLineConfig.ArrowWidth, h = ArrowLineConfig.ArrowHeight;
var theta = Math.Atan2(pts[0].Y - pts[1].Y, pts[0].X - pts[1].X);
var sint = Math.Sin(theta);
var cost = Math.Cos(theta);
var pointList = new List<Point> {
new Point(pts[0].X, pts[0].Y),
};
if (IsDistributePointsOnLineShape) pointList.AddRange(MainWindow.ShapeDrawingHelper.DistributePointsOnLine(new Point(pts[0].X, pts[0].Y),new Point(pts[1].X, pts[1].Y)));
pointList.AddRange(new List<Point> {
new Point(pts[1].X, pts[1].Y),
new Point(pts[1].X + (w * cost - h * sint), pts[1].Y + (w * sint + h * cost)),
new Point(pts[1].X, pts[1].Y),
new Point(pts[1].X + (w * cost + h * sint), pts[1].Y - (h * cost - w * sint)),
});
StylusPoints = new StylusPointCollection(pointList);
var _pts = new List<Point>(this.StylusPoints.ToPoints());
using (StreamGeometryContext ctx = geometry.Open()) {
ctx.BeginFigure(_pts[0], false , false);
_pts.RemoveAt(0);
ctx.PolyLineTo(_pts,true, true);
}
drawingContext.DrawGeometry(new SolidColorBrush(DrawingAttributes.Color),pen, geometry);
return;
}
drawingContext.DrawGeometry(new SolidColorBrush(Colors.Transparent),pen, geometry);
}
}
}
class CustomDynamicRenderer : DynamicRenderer {
private Point prevPoint;
private List<StylusPoint> pointsList = new List<StylusPoint>();
private void ClearPointsList() {
pointsList.Clear();
}
private void PushPoint(StylusPoint point) {
pointsList.Add(point);
if (pointsList.Count > 15) {
pointsList.RemoveRange(0,pointsList.Count - 15);
}
}
protected override void OnStylusDown(RawStylusInput rawStylusInput) {
prevPoint = new Point(double.NegativeInfinity, double.NegativeInfinity);
ClearPointsList();
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);
}
protected override void OnStylusMove(RawStylusInput rawStylusInput) {
base.OnStylusMove(rawStylusInput);
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);
}
protected override void OnDraw(DrawingContext drawingContext,
StylusPointCollection stylusPoints,
Geometry geometry, Brush fillBrush) {
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 *= 0.75;
da.Height *= 0.75;
var stk = new Stroke(sp,da);
stk.Draw(drawingContext);
}
catch { }
}
}
public class IccInkCanvas : InkCanvas {
CustomDynamicRenderer customDynamicRenderer = new CustomDynamicRenderer();
public IccInkCanvas() {
DynamicRenderer = customDynamicRenderer;
// 通过反射移除InkCanvas自带的默认 Delete按键事件
var commandBindingsField =
typeof(CommandManager).GetField("_classCommandBindings", BindingFlags.NonPublic | BindingFlags.Static);
var bnds = commandBindingsField.GetValue(null) as HybridDictionary;
var inkCanvasBindings = bnds[typeof(InkCanvas)] as CommandBindingCollection;
var enumerator = inkCanvasBindings.GetEnumerator();
while (enumerator.MoveNext()) {
var item = (CommandBinding)enumerator.Current;
if (item.Command == ApplicationCommands.Delete) {
var executedField =
typeof(CommandBinding).GetField("Executed", BindingFlags.NonPublic | BindingFlags.Instance);
var canExecuteField =
typeof(CommandBinding).GetField("CanExecute", BindingFlags.NonPublic | BindingFlags.Instance);
executedField.SetValue(item, new ExecutedRoutedEventHandler((sender, args) => { }));
canExecuteField.SetValue(item, new CanExecuteRoutedEventHandler((sender, args) => { }));
}
}
// 为IccInkCanvas注册自定义的 Delete按键Command并Invoke OnDeleteCommandFired。
CommandManager.RegisterClassCommandBinding(typeof(IccInkCanvas), new CommandBinding(ApplicationCommands.Delete,
(sender, args) => {
DeleteKeyCommandFired?.Invoke(this, new RoutedEventArgs());
}, (sender, args) => {
args.CanExecute = GetSelectedStrokes().Count != 0;
}));
}
protected override void OnStrokeCollected(InkCanvasStrokeCollectedEventArgs e) {
IccStroke customStroke = new IccStroke(e.Stroke.StylusPoints, e.Stroke.DrawingAttributes);
if (e.Stroke is IccStroke) {
this.Strokes.Add(e.Stroke);
} else {
this.Strokes.Remove(e.Stroke);
this.Strokes.Add(customStroke);
}
InkCanvasStrokeCollectedEventArgs args =
new InkCanvasStrokeCollectedEventArgs(customStroke);
base.OnStrokeCollected(args);
}
public event EventHandler<RoutedEventArgs> DeleteKeyCommandFired;
}
}