mirror of
https://gitee.com/langsisi_admin/serein-flow
synced 2026-03-03 00:00:49 +08:00
533 lines
18 KiB
C#
533 lines
18 KiB
C#
using Serein.Library;
|
||
using Serein.Library.Api;
|
||
using Serein.Workbench.Extension;
|
||
using System;
|
||
using System.Net;
|
||
using System.Windows;
|
||
using System.Windows.Controls;
|
||
using System.Windows.Media;
|
||
using System.Windows.Shapes;
|
||
using Color = System.Windows.Media.Color;
|
||
using ColorConverter = System.Windows.Media.ColorConverter;
|
||
using Point = System.Windows.Point;
|
||
|
||
namespace Serein.Workbench.Node.View
|
||
{
|
||
#region 连接点相关代码
|
||
|
||
|
||
|
||
public class ConnectionModelBase
|
||
{
|
||
/// <summary>
|
||
/// 起始节点
|
||
/// </summary>
|
||
public NodeModelBase StartNode { get; set; }
|
||
/// <summary>
|
||
/// 目标节点
|
||
/// </summary>
|
||
public NodeModelBase EndNode { get; set; }
|
||
|
||
/// <summary>
|
||
/// 来源于起始节点的（控制点）类型
|
||
/// </summary>
|
||
public JunctionType JoinTypeOfStart { get; set; }
|
||
|
||
/// <summary>
|
||
/// 连接到目标节点的（控制点）类型
|
||
/// </summary>
|
||
public JunctionType JoinTypeOfEnd { get; set; }
|
||
|
||
/// <summary>
|
||
/// 连接类型
|
||
/// </summary>
|
||
public ConnectionInvokeType Type { get; set; }
|
||
}
|
||
|
||
|
||
public interface IJunctionNode
|
||
{
|
||
string BoundNodeGuid { get; }
|
||
}
|
||
|
||
/// <summary>
|
||
/// 连接点
|
||
/// </summary>
|
||
public class JunctionNode : IJunctionNode
|
||
{
|
||
/// <summary>
|
||
/// 连接点类型
|
||
/// </summary>
|
||
public JunctionType JunctionType { get; }
|
||
/// <summary>
|
||
/// 对应的视图对象
|
||
/// </summary>
|
||
public NodeModelBase NodeModel { get; set; }
|
||
/// <summary>
|
||
///
|
||
/// </summary>
|
||
public string BoundNodeGuid { get => NodeModel.Guid; }
|
||
}
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
#endregion
|
||
|
||
/// <summary>
|
||
/// 连接控件，表示控件的连接关系
|
||
/// </summary>
|
||
public class ConnectionControl
|
||
{
|
||
|
||
private readonly Action RemoteCallback;
|
||
|
||
|
||
/// <summary>
|
||
/// 所在的画布
|
||
/// </summary>
|
||
public Canvas Canvas { get; }
|
||
|
||
/// <summary>
|
||
/// 调用方法类型，连接类型
|
||
/// </summary>
|
||
public ConnectionInvokeType InvokeType { get; }
|
||
|
||
/// <summary>
|
||
/// 获取参数类型，第几个参数
|
||
/// </summary>
|
||
public int ArgIndex { get; set; } = -1;
|
||
|
||
/// <summary>
|
||
/// 参数来源（决定了连接线的样式）
|
||
/// </summary>
|
||
public ConnectionArgSourceType ArgSourceType { get; set; }
|
||
|
||
/// <summary>
|
||
/// 起始控制点
|
||
/// </summary>
|
||
public JunctionControlBase Start { get; set; }
|
||
|
||
/// <summary>
|
||
/// 目标控制点
|
||
/// </summary>
|
||
public JunctionControlBase End { get; set; }
|
||
|
||
/// <summary>
|
||
/// 连接线
|
||
/// </summary>
|
||
private ConnectionLineShape BezierLine;
|
||
|
||
private LineType LineType;
|
||
|
||
/// <summary>
|
||
/// 关于调用
|
||
/// </summary>
|
||
/// <param name="Canvas"></param>
|
||
/// <param name="invokeType"></param>
|
||
public ConnectionControl(Canvas Canvas,
|
||
ConnectionInvokeType invokeType,
|
||
JunctionControlBase Start,
|
||
JunctionControlBase End,
|
||
Action remoteCallback)
|
||
{
|
||
this.LineType = LineType.Bezier;
|
||
this.RemoteCallback = remoteCallback;
|
||
this.Canvas = Canvas;
|
||
this.InvokeType = invokeType;
|
||
this.Start = Start;
|
||
this.End = End;
|
||
InitElementPoint();
|
||
}
|
||
|
||
/// <summary>
|
||
/// 关于入参
|
||
/// </summary>
|
||
/// <param name="Canvas"></param>
|
||
/// <param name="Type"></param>
|
||
public ConnectionControl(LineType LineType,
|
||
Canvas Canvas,
|
||
int argIndex,
|
||
ConnectionArgSourceType argSourceType,
|
||
JunctionControlBase Start,
|
||
JunctionControlBase End,
|
||
Action remoteCallback)
|
||
{
|
||
this.LineType = LineType;
|
||
this.RemoteCallback = remoteCallback;
|
||
this.Canvas = Canvas;
|
||
this.ArgIndex = ArgIndex;
|
||
this.ArgSourceType = argSourceType;
|
||
this.Start = Start;
|
||
this.End = End;
|
||
InitElementPoint();
|
||
}
|
||
|
||
/// <summary>
|
||
/// 绘制
|
||
/// </summary>
|
||
public void InitElementPoint()
|
||
{
|
||
leftCenterOfEndLocation = Start.MyCenterPoint;
|
||
rightCenterOfStartLocation = End.MyCenterPoint;
|
||
|
||
(Point startPoint, Point endPoint) = RefreshPoint(Canvas, Start, End);
|
||
var connectionType = Start.JunctionType.ToConnectyionType();
|
||
bool isDotted;
|
||
Brush brush;
|
||
if(connectionType == JunctionOfConnectionType.Invoke)
|
||
{
|
||
brush = InvokeType.ToLineColor();
|
||
isDotted = false;
|
||
}
|
||
else
|
||
{
|
||
brush = ArgSourceType.ToLineColor();
|
||
isDotted = true; // 如果为参数，则绘制虚线
|
||
}
|
||
BezierLine = new ConnectionLineShape(LineType, startPoint, endPoint, brush, isDotted);
|
||
Grid.SetZIndex(BezierLine, -9999999); // 置底
|
||
Canvas.Children.Add(BezierLine);
|
||
|
||
ConfigureLineContextMenu(); //配置右键菜单
|
||
}
|
||
|
||
|
||
/// <summary>
|
||
/// 配置连接曲线的右键菜单
|
||
/// </summary>
|
||
private void ConfigureLineContextMenu()
|
||
{
|
||
var contextMenu = new ContextMenu();
|
||
contextMenu.Items.Add(MainWindow.CreateMenuItem("删除连线", (s, e) => this.DeleteConnection()));
|
||
BezierLine.ContextMenu = contextMenu;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 删除该连线
|
||
/// </summary>
|
||
/// <param name="line"></param>
|
||
public void DeleteConnection()
|
||
{
|
||
RemoteCallback?.Invoke();
|
||
}
|
||
/// <summary>
|
||
/// 删除该连线
|
||
/// </summary>
|
||
public void Remote()
|
||
{
|
||
Canvas.Children.Remove(BezierLine);
|
||
}
|
||
|
||
/// <summary>
|
||
/// 重新绘制
|
||
/// </summary>
|
||
public void RefreshLine()
|
||
{
|
||
(Point startPoint, Point endPoint) = RefreshPoint(Canvas, Start, End);
|
||
BezierLine.UpdatePoints(startPoint, endPoint);
|
||
}
|
||
|
||
private Point rightCenterOfStartLocation; // 目标节点选择左侧边缘中心
|
||
private Point leftCenterOfEndLocation; // 起始节点选择右侧边缘中心
|
||
|
||
#region 工具方法
|
||
private (Point startPoint,Point endPoint) RefreshPoint(Canvas canvas, FrameworkElement startElement, FrameworkElement endElement)
|
||
{
|
||
var startPoint = startElement.TranslatePoint(rightCenterOfStartLocation, canvas); // 获取起始节点的中心位置
|
||
var endPoint = endElement.TranslatePoint(leftCenterOfEndLocation, canvas); // 计算终点位置
|
||
return (startPoint, endPoint);
|
||
}
|
||
|
||
|
||
|
||
|
||
#endregion
|
||
}
|
||
|
||
|
||
|
||
|
||
|
||
/*
|
||
/// <summary>
|
||
/// 连接控件，表示控件的连接关系
|
||
/// </summary>
|
||
public class ConnectionControl : Shape
|
||
{
|
||
private readonly Action RemoteCallback;
|
||
|
||
/// <summary>
|
||
/// 关于调用
|
||
/// </summary>
|
||
/// <param name="Canvas"></param>
|
||
/// <param name="Type"></param>
|
||
public ConnectionControl(Canvas Canvas,
|
||
ConnectionInvokeType Type,
|
||
JunctionControlBase Start,
|
||
JunctionControlBase End,
|
||
Action remoteCallback)
|
||
{
|
||
this.RemoteCallback = remoteCallback;
|
||
this.Canvas = Canvas;
|
||
this.Type = Type;
|
||
this.Start = Start;
|
||
this.End = End;
|
||
this.Start.Background = GetLineColor(Type); // 线条颜色
|
||
this.End.Background = GetLineColor(Type); // 线条颜色
|
||
InitElementPoint();
|
||
}
|
||
|
||
/// <summary>
|
||
/// 关于入参
|
||
/// </summary>
|
||
/// <param name="Canvas"></param>
|
||
/// <param name="Type"></param>
|
||
public ConnectionControl(Canvas Canvas,
|
||
int argIndex,
|
||
ConnectionArgSourceType connectionArgSourceType,
|
||
JunctionControlBase Start,
|
||
JunctionControlBase End,
|
||
Action remoteCallback)
|
||
{
|
||
this.RemoteCallback = remoteCallback;
|
||
this.Canvas = Canvas;
|
||
this.ArgIndex = ArgIndex;
|
||
this.ConnectionArgSourceType = connectionArgSourceType;
|
||
this.Start = Start;
|
||
this.End = End;
|
||
this.Start.Background = GetLineColor(Type); // 线条颜色
|
||
this.End.Background = GetLineColor(Type); // 线条颜色
|
||
InitElementPoint();
|
||
}
|
||
|
||
/// <summary>
|
||
/// 所在的画布
|
||
/// </summary>
|
||
public Canvas Canvas { get; }
|
||
|
||
/// <summary>
|
||
/// 调用方法类型，连接类型
|
||
/// </summary>
|
||
public ConnectionInvokeType Type { get; }
|
||
|
||
/// <summary>
|
||
/// 获取参数类型，第几个参数
|
||
/// </summary>
|
||
public int ArgIndex { get; set; } = -1;
|
||
|
||
/// <summary>
|
||
/// 参数来源（决定了连接线的样式）
|
||
/// </summary>
|
||
public ConnectionArgSourceType ConnectionArgSourceType { get; set; }
|
||
|
||
/// <summary>
|
||
/// 起始控制点
|
||
/// </summary>
|
||
public JunctionControlBase Start { get; set; }
|
||
|
||
/// <summary>
|
||
/// 目标控制点
|
||
/// </summary>
|
||
public JunctionControlBase End { get; set; }
|
||
|
||
|
||
/// <summary>
|
||
/// 配置连接曲线的右键菜单
|
||
/// </summary>
|
||
/// <param name="line"></param>
|
||
private void ConfigureLineContextMenu(ConnectionControl connection)
|
||
{
|
||
var contextMenu = new ContextMenu();
|
||
contextMenu.Items.Add(MainWindow.CreateMenuItem("删除连线", (s, e) => DeleteConnection(connection)));
|
||
connection.ContextMenu = contextMenu;
|
||
|
||
}
|
||
|
||
/// <summary>
|
||
/// 删除该连线
|
||
/// </summary>
|
||
/// <param name="line"></param>
|
||
private void DeleteConnection(ConnectionControl connection)
|
||
{
|
||
var connectionToRemove = connection;
|
||
if (connectionToRemove is null)
|
||
{
|
||
return;
|
||
}
|
||
if(this.Start is JunctionControlBase startJunctionControlBase)
|
||
{
|
||
startJunctionControlBase.Background = Brushes.Transparent;
|
||
}
|
||
if (this.End is JunctionControlBase endJunctionControlBase)
|
||
{
|
||
endJunctionControlBase.Background = Brushes.Transparent;
|
||
}
|
||
this.Canvas.g
|
||
RemoteCallback?.Invoke();
|
||
}
|
||
|
||
/// <summary>
|
||
/// 移除
|
||
/// </summary>
|
||
public void RemoveFromCanvas()
|
||
{
|
||
Canvas.Children.Remove(this); // 移除线
|
||
}
|
||
|
||
/// <summary>
|
||
/// 重新绘制
|
||
/// </summary>
|
||
public void AddOrRefreshLine()
|
||
{
|
||
this.InvalidateVisual();
|
||
}
|
||
|
||
public void InitElementPoint()
|
||
{
|
||
leftCenterOfEndLocation = new Point(0, End.ActualHeight / 2); // 目标节点选择左侧边缘中心
|
||
rightCenterOfStartLocation = new Point(Start.ActualWidth, Start.ActualHeight / 2); // 起始节点选择右侧边缘中心
|
||
brush = GetLineColor(Type); // 线条颜色
|
||
hitVisiblePen = new Pen(Brushes.Transparent, 1.0); // 初始化碰撞检测线
|
||
hitVisiblePen.Freeze(); // Freeze以提高性能
|
||
visualPen = new Pen(brush, 2.0); // 默认可视化Pen
|
||
visualPen.Freeze(); // Freeze以提高性能
|
||
ConfigureLineContextMenu(this); // 设置连接右键事件
|
||
linkSize = 4; // 整线条粗细
|
||
Canvas.Children.Add(this); // 添加线
|
||
Grid.SetZIndex(this, -9999999); // 置底
|
||
}
|
||
|
||
/// <summary>
|
||
/// 控件重绘事件
|
||
/// </summary>
|
||
/// <param name="drawingContext"></param>
|
||
protected override void OnRender(DrawingContext drawingContext)
|
||
{
|
||
RefreshPoint(Canvas, this.Start, this.End); // 刷新坐标
|
||
DrawBezierCurve(drawingContext, startPoint, endPoint, linkSize, brush); // 刷新线条显示位置
|
||
}
|
||
|
||
private readonly StreamGeometry streamGeometry = new StreamGeometry();
|
||
private Point rightCenterOfStartLocation; // 目标节点选择左侧边缘中心
|
||
private Point leftCenterOfEndLocation; // 起始节点选择右侧边缘中心
|
||
private Pen hitVisiblePen; // 初始化碰撞检测线
|
||
private Pen visualPen; // 默认可视化Pen
|
||
private Point startPoint; // 连接线的起始节点
|
||
private Point endPoint; // 连接线的终点
|
||
private Brush brush; // 线条颜色
|
||
double linkSize; // 根据缩放比例调整线条粗细
|
||
protected override Geometry DefiningGeometry => streamGeometry;
|
||
|
||
#region 工具方法
|
||
|
||
public void RefreshPoint(Canvas canvas, FrameworkElement startElement, FrameworkElement endElement)
|
||
{
|
||
endPoint = endElement.TranslatePoint(leftCenterOfEndLocation, canvas); // 计算终点位置
|
||
startPoint = startElement.TranslatePoint(rightCenterOfStartLocation, canvas); // 获取起始节点的中心位置
|
||
}
|
||
|
||
/// <summary>
|
||
/// 根据连接类型指定颜色
|
||
/// </summary>
|
||
/// <param name="currentConnectionType"></param>
|
||
/// <returns></returns>
|
||
/// <exception cref="Exception"></exception>
|
||
public static SolidColorBrush GetLineColor(ConnectionInvokeType currentConnectionType)
|
||
{
|
||
return currentConnectionType switch
|
||
{
|
||
ConnectionInvokeType.IsSucceed => new SolidColorBrush((Color)ColorConverter.ConvertFromString("#04FC10")),
|
||
ConnectionInvokeType.IsFail => new SolidColorBrush((Color)ColorConverter.ConvertFromString("#F18905")),
|
||
ConnectionInvokeType.IsError => new SolidColorBrush((Color)ColorConverter.ConvertFromString("#FE1343")),
|
||
ConnectionInvokeType.Upstream => new SolidColorBrush((Color)ColorConverter.ConvertFromString("#4A82E4")),
|
||
_ => throw new Exception(),
|
||
};
|
||
}
|
||
private Point c0, c1; // 用于计算贝塞尔曲线控制点逻辑
|
||
private Vector axis = new Vector(1, 0);
|
||
private Vector startToEnd;
|
||
private void DrawBezierCurve(DrawingContext drawingContext,
|
||
Point start,
|
||
Point end,
|
||
double linkSize,
|
||
Brush brush,
|
||
bool isHitTestVisible = false,
|
||
double strokeThickness = 1.0,
|
||
bool isMouseOver = false,
|
||
double dashOffset = 0.0)
|
||
{
|
||
// 控制点的计算逻辑
|
||
double power = 8 * 8; // 控制贝塞尔曲线的“拉伸”强度
|
||
|
||
// 计算轴向向量与起点到终点的向量
|
||
//var axis = new Vector(1, 0);
|
||
startToEnd = (end.ToVector() - start.ToVector()).NormalizeTo();
|
||
|
||
// 计算拉伸程度k，拉伸与水平夹角正相关
|
||
var k = 1 - Math.Pow(Math.Max(0, axis.DotProduct(startToEnd)), 10.0);
|
||
|
||
// 如果起点x大于终点x，增加额外的偏移量，避免重叠
|
||
var bias = start.X > end.X ? Math.Abs(start.X - end.X) * 0.25 : 0;
|
||
|
||
// 控制点的实际计算
|
||
c0 = new Point(+(power + bias) * k + start.X, start.Y);
|
||
c1 = new Point(-(power + bias) * k + end.X, end.Y);
|
||
|
||
// 准备StreamGeometry以用于绘制曲线
|
||
streamGeometry.Clear();
|
||
using (var context = streamGeometry.Open())
|
||
{
|
||
context.BeginFigure(start, true, false); // 曲线起点
|
||
context.BezierTo(c0, c1, end, true, false); // 画贝塞尔曲线
|
||
}
|
||
|
||
drawingContext.DrawGeometry(null, visualPen, streamGeometry);
|
||
|
||
// 绘制碰撞检测线
|
||
//if (true)
|
||
//{
|
||
// //hitVisiblePen = new Pen(Brushes.Transparent, linkSize + strokeThickness);
|
||
// //hitVisiblePen.Freeze();
|
||
// drawingContext.DrawGeometry(null, hitVisiblePen, streamGeometry);
|
||
//}
|
||
//else
|
||
//{
|
||
|
||
|
||
//}
|
||
|
||
}
|
||
#endregion
|
||
}
|
||
*/
|
||
|
||
|
||
|
||
|
||
}
|
