添加项目文件。

Util.DiagramDesigner/Converters/ArrowPathConverter.cs

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+using System;
+using System.Windows.Data;
+
+namespace Util.DiagramDesigner
+{
+
+    public class ArrowPathConverter : IValueConverter
+    {
+
+        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            if (value is ArrowPathStyle arrowStyle)
+            {
+                return ArrowPathData.Arrow[(int)arrowStyle];              
+            }
+            return null;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

Util.DiagramDesigner/Converters/ArrowSizeConverter.cs

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+using System;
+using System.Windows.Data;
+
+namespace Util.DiagramDesigner
+{
+    public class ArrowSizeConverter : IValueConverter
+    {
+
+        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            if (value is ArrowSizeStyle arrowStyle)
+            {
+                return (int)arrowStyle;
+            }
+            return value;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

Util.DiagramDesigner/Converters/BoolToVisibilityConverter.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Windows;
+using System.Windows.Data;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+
+namespace Util.DiagramDesigner
+{
+    [ValueConversion(typeof(bool), typeof(Visibility))]
+    public class BoolToVisibilityConverter : IValueConverter
+    {
+        static BoolToVisibilityConverter()
+        {
+            Instance = new BoolToVisibilityConverter();
+        }
+
+        public static BoolToVisibilityConverter Instance
+        {
+            get;
+            private set;
+        }
+
+        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            return ((bool)value) ? Visibility.Visible : Visibility.Collapsed;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+
+
+
+
+
+
+    }
+}

Util.DiagramDesigner/Converters/ClipConverter.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Windows;
+using System.Windows.Data;
+using System.Windows.Media;
+
+namespace Util.DiagramDesigner
+{
+    public class ClipConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            string para = parameter?.ToString();
+            try
+            {
+                if (value is ImageItemViewModel imageItemViewModel)
+                {
+                    double xradio = imageItemViewModel.ItemWidth / imageItemViewModel.ImageWidth;
+                    double yradio = imageItemViewModel.ItemHeight / imageItemViewModel.ImageHeight;
+                    if (para == "Clip")
+                    {
+                        if (imageItemViewModel.ClipMode == ClipMode.RectangleGeometry)
+                        {
+                            RectangleGeometry rectangle = new RectangleGeometry();
+                            if (imageItemViewModel.ResizeMode == false)
+                            {
+                                rectangle.Rect = new System.Windows.Rect(imageItemViewModel.ResizeMargin.Left * xradio, imageItemViewModel.ResizeMargin.Top * yradio, imageItemViewModel.ItemWidth, imageItemViewModel.ItemHeight);
+                            }
+                            else
+                            {
+                                rectangle.Rect = new System.Windows.Rect(imageItemViewModel.ResizeMargin.Left, imageItemViewModel.ResizeMargin.Top , imageItemViewModel.ItemWidth - (imageItemViewModel.ResizeMargin.Left + imageItemViewModel.ResizeMargin.Right), imageItemViewModel.ItemHeight - (imageItemViewModel.ResizeMargin.Top + imageItemViewModel.ResizeMargin.Bottom));
+                            }
+                            return rectangle;
+                        }
+                        else if (imageItemViewModel.ClipMode == ClipMode.EllipseGeometry)
+                        {
+                            EllipseGeometry ellipse = new EllipseGeometry();
+                            if (imageItemViewModel.ResizeMode == false)
+                            {                               
+                                ellipse.Center = new Point(imageItemViewModel.ResizeMargin.Left * xradio + imageItemViewModel.ItemWidth / 2, imageItemViewModel.ResizeMargin.Top * yradio + imageItemViewModel.ItemHeight / 2);
+                                ellipse.RadiusX = imageItemViewModel.ItemWidth / 2;
+                                ellipse.RadiusY = imageItemViewModel.ItemHeight / 2;
+                            }
+                            else
+                            {
+                                ellipse.Center = new Point(imageItemViewModel.ResizeMargin.Left + (imageItemViewModel.ItemWidth - imageItemViewModel.ResizeMargin.Left - imageItemViewModel.ResizeMargin.Right) / 2, imageItemViewModel.ResizeMargin.Top + (imageItemViewModel.ItemHeight - imageItemViewModel.ResizeMargin.Top  - imageItemViewModel.ResizeMargin.Bottom)/ 2);
+                                ellipse.RadiusX = (imageItemViewModel.ItemWidth - imageItemViewModel.ResizeMargin.Left - imageItemViewModel.ResizeMargin.Right) / 2;
+                                ellipse.RadiusY = (imageItemViewModel.ItemHeight - imageItemViewModel.ResizeMargin.Top - imageItemViewModel.ResizeMargin.Bottom) / 2;
+                            }
+                            return ellipse;
+                        }
+                    }
+                    else if (para == "Margin")
+                    {
+                        if (imageItemViewModel.ResizeMode == false)
+                        {
+                            return new Thickness(-imageItemViewModel.ResizeMargin.Left * xradio, -imageItemViewModel.ResizeMargin.Top * yradio, -imageItemViewModel.ResizeMargin.Right * xradio, -imageItemViewModel.ResizeMargin.Bottom * yradio);
+                        }
+                        else
+                        {
+                            return new Thickness();
+                        }
+                    }
+                }
+            }
+            catch { }
+
+            return null;
+        }
+
+
+        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

Util.DiagramDesigner/Converters/ColorBrushConverter.cs

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+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Text;
+using System.Windows;
+using System.Windows.Data;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+
+namespace Util.DiagramDesigner
+{
+    public class ColorBrushConverter : IValueConverter
+    {
+
+        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            Brush brush = null;
+            if (value is Color)
+            {
+                brush = new SolidColorBrush((Color)value);
+            }
+            else if (value is ColorObject colorObject)
+            {
+                if (colorObject.BrushType == BrushType.None)
+                    brush = new SolidColorBrush(Colors.Transparent);
+                else if (colorObject.BrushType == BrushType.SolidColorBrush)
+                    brush = new SolidColorBrush(colorObject.Color);
+                else if (colorObject.BrushType == BrushType.LinearGradientBrush)
+                {
+                    Point startPoint;
+                    Point endPoint;
+                    if (colorObject.LinearOrientation == LinearOrientation.LeftToRight)
+                    {
+                        startPoint = new Point(0, 0.5);
+                        endPoint = new Point(1, 0.5);
+                    }
+                    else if (colorObject.LinearOrientation == LinearOrientation.LeftTopToRightBottom)
+                    {
+                        startPoint = new Point(0, 0);
+                        endPoint = new Point(1, 1);
+                    }
+                    else if (colorObject.LinearOrientation == LinearOrientation.TopToBottom)
+                    {
+                        startPoint = new Point(0.5, 0);
+                        endPoint = new Point(0.5, 1);
+                    }
+                    else if (colorObject.LinearOrientation == LinearOrientation.RightTopToLeftBottom)
+                    {
+                        startPoint = new Point(1, 0);
+                        endPoint = new Point(0, 1);
+                    }
+                    else if (colorObject.LinearOrientation == LinearOrientation.RightToLeft)
+                    {
+                        startPoint = new Point(1, 0.5);
+                        endPoint = new Point(0, 0.5);
+                    }
+                    else if (colorObject.LinearOrientation == LinearOrientation.RightBottomToLeftTop)
+                    {
+                        startPoint = new Point(1, 1);
+                        endPoint = new Point(0, 0);
+                    }
+                    else if (colorObject.LinearOrientation == LinearOrientation.BottomToTop)
+                    {
+                        startPoint = new Point(0.5, 1);
+                        endPoint = new Point(0.5, 0);
+                    }
+                    else if (colorObject.LinearOrientation == LinearOrientation.LeftBottomToRightTop)
+                    {
+                        startPoint = new Point(0, 1);
+                        endPoint = new Point(1, 0);
+                    }
+                    else
+                    {
+                        startPoint = new Point(0, 0.5);
+                        endPoint = new Point(1, 0.5);
+                    }
+
+                    LinearGradientBrush myBrush = new LinearGradientBrush();
+                    myBrush.StartPoint = startPoint;
+                    myBrush.EndPoint = endPoint;
+                    if (colorObject.GradientStop != null)
+                    {
+                        foreach (var stop in colorObject.GradientStop)
+                        {
+                            myBrush.GradientStops.Add(new System.Windows.Media.GradientStop(stop.Color, stop.Offset));
+                        }
+                    }
+                    brush = myBrush;
+
+                    RotateTransform rotateTransform = new RotateTransform(colorObject.Angle, 0.5, 0.5);
+                    myBrush.RelativeTransform = rotateTransform;
+                }
+                else if (colorObject.BrushType == BrushType.RadialGradientBrush)
+                {
+                    Point center;
+                    Point gradientOrigin;
+                    double radiusX;
+                    double radiusY;
+
+                    if (colorObject.RadialOrientation == RadialOrientation.LeftTop)
+                    {
+                        center = new Point(0, 0);
+                        gradientOrigin = center;
+                        radiusX = 1;
+                        radiusY = 1;
+                    }
+                    else if (colorObject.RadialOrientation == RadialOrientation.RightTop)
+                    {
+                        center = new Point(1, 0);
+                        gradientOrigin = center;
+                        radiusX = 1;
+                        radiusY = 1;
+                    }
+                    else if (colorObject.RadialOrientation == RadialOrientation.RightBottom)
+                    {
+                        center = new Point(1, 1);
+                        gradientOrigin = center;
+                        radiusX = 1;
+                        radiusY = 1;
+                    }
+                    else if (colorObject.RadialOrientation == RadialOrientation.LeftBottom)
+                    {
+                        center = new Point(0, 1);
+                        gradientOrigin = center;
+                        radiusX = 1;
+                        radiusY = 1;
+                    }
+                    else
+                    {
+                        center = new Point(0.5, 0.5);
+                        gradientOrigin = center;
+                        radiusX = 0.5;
+                        radiusY = 0.5;
+                    }
+
+                    RadialGradientBrush myBrush = new RadialGradientBrush();
+                    myBrush.Center = center;
+                    myBrush.GradientOrigin = gradientOrigin;
+                    myBrush.RadiusX = radiusX;
+                    myBrush.RadiusY = radiusY;
+                    if (colorObject.GradientStop != null)
+                    {
+                        foreach (var stop in colorObject.GradientStop)
+                        {
+                            myBrush.GradientStops.Add(new System.Windows.Media.GradientStop(stop.Color, stop.Offset));
+                        }
+                    }
+                    brush = myBrush;
+
+                    RotateTransform rotateTransform = new RotateTransform(colorObject.Angle, 0.5, 0.5);
+                    myBrush.RelativeTransform = rotateTransform;
+                }
+                else if (colorObject.BrushType == BrushType.ImageBrush)
+                {
+                    ImageBrush myBrush = new ImageBrush();
+                    myBrush.ImageSource = new BitmapImage(new Uri(colorObject.Image, UriKind.Absolute));
+                    brush = myBrush;
+                }
+                else if (colorObject.BrushType == BrushType.DrawingBrush)
+                {
+                    DrawingBrush myBrush = new DrawingBrush();
+
+                    GeometryDrawing backgroundSquare =
+                        new GeometryDrawing(
+                            Brushes.White,
+                            null,
+                            new RectangleGeometry(new Rect(0, 0, 100, 100)));
+
+                    GeometryGroup aGeometryGroup = new GeometryGroup();
+                    aGeometryGroup.Children.Add(new RectangleGeometry(new Rect(0, 0, 50, 50)));
+                    aGeometryGroup.Children.Add(new RectangleGeometry(new Rect(50, 50, 50, 50)));
+
+                    LinearGradientBrush checkerBrush = new LinearGradientBrush();
+                    checkerBrush.GradientStops.Add(new System.Windows.Media.GradientStop(Colors.Black, 0.0));
+                    checkerBrush.GradientStops.Add(new System.Windows.Media.GradientStop(Colors.Gray, 1.0));
+
+                    GeometryDrawing checkers = new GeometryDrawing(checkerBrush, null, aGeometryGroup);
+
+                    DrawingGroup checkersDrawingGroup = new DrawingGroup();
+                    checkersDrawingGroup.Children.Add(backgroundSquare);
+                    checkersDrawingGroup.Children.Add(checkers);
+
+                    myBrush.Drawing = checkersDrawingGroup;
+                    myBrush.Viewport = new Rect(0, 0, 0.25, 0.25);
+                    myBrush.TileMode = TileMode.Tile;
+
+                    brush = myBrush;
+                }
+                if (brush != null)
+                {
+                    brush.Opacity = colorObject.Opacity;
+                }
+            }
+            else if (value is ObservableCollection<GradientStop> gradientStop)
+            {
+                LinearGradientBrush myBrush = new LinearGradientBrush();
+                myBrush.StartPoint = new Point(0, 0.5);
+                myBrush.EndPoint = new Point(1, 0.5);
+                if (gradientStop != null)
+                {
+                    foreach (var stop in gradientStop)
+                    {
+                        myBrush.GradientStops.Add(new System.Windows.Media.GradientStop(stop.Color, stop.Offset));
+                    }
+                }
+                brush = myBrush;
+            }
+
+            return brush;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

Util.DiagramDesigner/Converters/ConectorOrientationConverter.cs

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+using Util.DiagramDesigner;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Windows;
+using System.Windows.Data;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+
+namespace Util.DiagramDesigner
+{
+    public class ConectorOrientationConverter : IValueConverter
+    {
+
+        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            if (value is string)
+            {
+                string str = value as string;
+
+                return -5 - (str.Length * 4);
+            }
+            return null;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

Util.DiagramDesigner/Converters/ConectorValueConverter.cs

@@ -0,0 +1,47 @@
+using Util.DiagramDesigner;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Windows;
+using System.Windows.Data;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+
+namespace Util.DiagramDesigner
+{
+    public class ConectorValueConverter : IMultiValueConverter
+    {
+        public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            if (values == null || values.Length < 1)
+            {
+                throw new NotImplementedException();
+            }
+            if (values[0] is double && values[1] is ValueTypePoint)
+            {
+                double connectorValue = (double)values[0];
+                ValueTypePoint valueTypePoint = (ValueTypePoint)values[1];                
+
+                if (valueTypePoint == ValueTypePoint.Bool)
+                {
+                    return (connectorValue == 0) ? "F" : "T";
+                }
+                else if (valueTypePoint == ValueTypePoint.Int)
+                {
+                    return connectorValue.ToString("0");
+                }
+                else
+                {
+                    return connectorValue.ToString("f3");
+                }
+            }
+            return null;
+        }
+
+        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, System.Globalization.CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

Util.DiagramDesigner/Converters/ConnectionPathConverter.cs

@@ -0,0 +1,45 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Windows;
+using System.Windows.Data;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+
+namespace Util.DiagramDesigner
+{
+    [ValueConversion(typeof(List<Point>), typeof(PathSegmentCollection))]
+    public class ConnectionPathConverter : IValueConverter
+    {
+        static ConnectionPathConverter()
+        {
+            Instance = new ConnectionPathConverter();
+        }
+
+        public static ConnectionPathConverter Instance
+        {
+            get;
+            private set;
+        }
+
+        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            List<Point> points = (List<Point>)value;
+            PointCollection pointCollection = new PointCollection();
+            if (points != null)
+            {
+                foreach (Point point in points)
+                {
+                    pointCollection.Add(point);
+                }
+            }
+            return pointCollection;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

Util.DiagramDesigner/Converters/DoubleToThickness.cs

@@ -0,0 +1,85 @@
+using System.Globalization;
+using System.Windows;
+using System.Windows.Data;
+
+namespace Util.DiagramDesigner
+{
+    public class DoubleToThickness : IValueConverter
+    {
+        public object Convert(object value, System.Type targetType, object parameter, CultureInfo culture)
+        {
+            if (value != null)
+            {
+                if (parameter != null)
+                {
+                    switch (parameter.ToString())
+                    {
+                        case "Left":
+                            return new Thickness(System.Convert.ToDouble(value), 0, 0, 0);
+
+                        case "Top":
+                            return new Thickness(0, System.Convert.ToDouble(value), 0, 0);
+
+                        case "Right":
+                            return new Thickness(0, 0, System.Convert.ToDouble(value), 0);
+
+                        case "Buttom":
+                            return new Thickness(0, 0, 0, System.Convert.ToDouble(value));
+
+                        case "LeftTop":
+                            return new Thickness(System.Convert.ToDouble(value), System.Convert.ToDouble(value), 0, 0);
+
+                        case "LeftButtom":
+                            return new Thickness(System.Convert.ToDouble(value), 0, 0, System.Convert.ToDouble(value));
+
+                        case "RightTop":
+                            return new Thickness(0, System.Convert.ToDouble(value), System.Convert.ToDouble(value), 0);
+
+                        case "RigthButtom":
+                            return new Thickness(0, 0, System.Convert.ToDouble(value), System.Convert.ToDouble(value));
+
+                        case "LeftRight":
+                            return new Thickness(System.Convert.ToDouble(value), 0, System.Convert.ToDouble(value), 0);
+
+                        case "TopButtom":
+                            return new Thickness(0, System.Convert.ToDouble(value), 0, System.Convert.ToDouble(value));
+
+                        default:
+                            return new Thickness(System.Convert.ToDouble(value));
+                    }
+                }
+                return new Thickness(System.Convert.ToDouble(value));
+            }
+            return new Thickness(0);
+        }
+
+        public object ConvertBack(object value, System.Type targetType, object parameter, CultureInfo culture)
+        {
+            if (value != null)
+            {
+                if (parameter != null)
+                {
+                    switch (parameter.ToString())
+                    {
+                        case "Left":
+                            return ((Thickness)value).Left;
+
+                        case "Top":
+                            return ((Thickness)value).Top;
+
+                        case "Right":
+                            return ((Thickness)value).Right;
+
+                        case "Buttom":
+                            return ((Thickness)value).Bottom;
+
+                        default:
+                            return ((Thickness)value).Left;
+                    }
+                }
+                return ((Thickness)value).Left;
+            }
+            return 0.0;
+        }
+    }
+}

Util.DiagramDesigner/Converters/EnumDescriptionConverter.cs

@@ -0,0 +1,51 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Windows.Data;
+
+namespace Util.DiagramDesigner
+{
+    public class EnumDescriptionConverter : IValueConverter
+    {
+        #region constructor
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="EnumDescriptionConverter"/> class.
+        /// </summary>
+        public EnumDescriptionConverter()
+        {
+        }
+
+        #endregion
+
+        #region IValueConverter
+
+        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            if (value != null)
+            {
+                if (value is Enum)
+                {
+                    return ((Enum)value).GetDescription();
+                }
+                else
+                {
+                    return value.ToString();
+                }
+            }
+            else
+            {
+                return string.Empty;
+            }
+        }
+
+
+        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+
+        #endregion
+
+    }
+}

Util.DiagramDesigner/Converters/ImageUrlConverter.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Windows.Data;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+
+namespace Util.DiagramDesigner
+{
+    [ValueConversion(typeof(string), typeof(ImageSource))]
+    public class ImageUrlConverter : IValueConverter
+    {
+        static ImageUrlConverter()
+        {
+            Instance = new ImageUrlConverter();
+        }
+
+        public static ImageUrlConverter Instance
+        {
+            get;
+            private set;
+        }
+
+        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            Uri imagePath = new Uri(value.ToString(), UriKind.RelativeOrAbsolute);
+            ImageSource source = new BitmapImage(imagePath);
+            return source;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

Util.DiagramDesigner/Converters/LineDashConverter.cs

@@ -0,0 +1,24 @@
+using System;
+using System.Windows.Data;
+
+namespace Util.DiagramDesigner
+{
+
+    public class LineDashConverter : IValueConverter
+    {
+
+        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            if (value is LineDashStyle arrowStyle)
+            {
+                return StrokeDashArray.Dash[(int)arrowStyle];
+            }
+            return null;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

Util.DiagramDesigner/Converters/TrueToFalseConverter.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Globalization;
+using System.Windows.Data;
+
+namespace Util.DiagramDesigner
+{
+    /// <summary>
+    /// 这是一个颠倒黑白的世界
+    /// </summary>
+    public sealed class TrueToFalseConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            var v = (bool)value;
+            return !v;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}