mirror of
https://gitee.com/langsisi_admin/serein-flow
synced 2026-03-03 00:00:49 +08:00
406 lines
13 KiB
C#
406 lines
13 KiB
C#
using Serein.Library;
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using Serein.Library.Utils;
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using System;
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using System.Net;
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using System.Reflection;
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using System.Windows;
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using Serein.Workbench.Extension;
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using System.Windows.Controls;
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using System.Windows.Input;
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using System.Windows.Media;
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using System.Windows.Shapes;
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using System.Windows.Media.Media3D;
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using System.Windows.Documents;
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using System.Threading;
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using Serein.Workbench.Services;
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using Serein.Workbench.Tool;
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using System.ComponentModel;
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namespace Serein.Workbench.Node.View
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{
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/// <summary>
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/// 控制带的拓展方法
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/// </summary>
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internal static class MyUIFunc
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{
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public static Pen CreateAndFreezePen()
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{
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// 创建Pen
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Pen pen = new Pen(Brushes.Black, 1);
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// 冻结Pen
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if (pen.CanFreeze)
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{
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pen.Freeze();
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}
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return pen;
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}
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}
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/// <summary>
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/// 入参控件
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/// </summary>
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public class ParamsArgControl: Shape
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{
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public ParamsArgControl()
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{
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this.MouseDown += ParamsArg_OnMouseDown; // 增加或删除
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this.MouseMove += ParamsArgControl_MouseMove;
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this.MouseLeave += ParamsArgControl_MouseLeave;
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AddOrRemoveParamsTask = AddAsync;
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}
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protected readonly StreamGeometry StreamGeometry = new StreamGeometry();
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protected override Geometry DefiningGeometry => StreamGeometry;
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#region 控件属性，所在的节点
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public static readonly DependencyProperty NodeProperty =
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DependencyProperty.Register(nameof(MyNode), typeof(NodeModelBase), typeof(ParamsArgControl), new PropertyMetadata(default(NodeModelBase)));
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//public NodeModelBase NodeModel;
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/// <summary>
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/// 所在的节点
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/// </summary>
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public NodeModelBase MyNode
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{
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get { return (NodeModelBase)GetValue(NodeProperty); }
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set { SetValue(NodeProperty, value); }
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}
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#endregion
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#region 控件属性，连接器类型
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public static readonly DependencyProperty ArgIndexProperty =
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DependencyProperty.Register(nameof(ArgIndex), typeof(int), typeof(ParamsArgControl), new PropertyMetadata(default(int)));
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/// <summary>
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/// 参数的索引
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/// </summary>
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public int ArgIndex
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{
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get { return (int)GetValue(ArgIndexProperty); }
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set { SetValue(ArgIndexProperty, value.ToString()); }
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}
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#endregion
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/// <summary>
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/// 控件重绘事件
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/// </summary>
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/// <param name="drawingContext"></param>
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protected override void OnRender(DrawingContext drawingContext)
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{
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Brush brush = isMouseOver ? Brushes.Red : Brushes.Green;
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double height = ActualHeight;
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// 定义圆形的大小和位置
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double connectorSize = 10; // 连接器的大小
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double circleCenterX = 8; // 圆心 X 坐标
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double circleCenterY = height / 2; // 圆心 Y 坐标
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var circlePoint = new Point(circleCenterX, circleCenterY);
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// 圆形部分
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var ellipse = new EllipseGeometry(circlePoint, connectorSize / 2, connectorSize / 2);
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drawingContext.DrawGeometry(brush, MyUIFunc.CreateAndFreezePen(), ellipse);
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}
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private bool isMouseOver; // 鼠标悬停状态
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private Func<Task> AddOrRemoveParamsTask; // 增加或删除参数
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public async void ParamsArg_OnMouseDown(object sender, MouseButtonEventArgs e)
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{
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await AddOrRemoveParamsTask.Invoke();
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}
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private void ParamsArgControl_MouseMove(object sender, MouseEventArgs e)
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{
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isMouseOver = true;
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if (cancellationTokenSource.IsCancellationRequested) {
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cancellationTokenSource = new CancellationTokenSource();
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Task.Run(async () =>
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{
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await Task.Delay(380);
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}, cancellationTokenSource.Token).ContinueWith((t) =>
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{
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// 如果焦点仍在控件上时，则改变点击事件
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if (isMouseOver)
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{
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AddOrRemoveParamsTask = RemoveAsync;
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this.Dispatcher.Invoke(InvalidateVisual);// 触发一次重绘
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}
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});
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}
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}
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private CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();
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private void ParamsArgControl_MouseLeave(object sender, MouseEventArgs e)
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{
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isMouseOver = false;
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AddOrRemoveParamsTask = AddAsync; // 鼠标焦点离开时恢复点击事件
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cancellationTokenSource?.Cancel();
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this.Dispatcher.Invoke(InvalidateVisual);// 触发一次重绘
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}
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private async Task AddAsync()
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{
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await this.MyNode.Env.ChangeParameter(MyNode.Guid, true, ArgIndex);
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}
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private async Task RemoveAsync()
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{
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await this.MyNode.Env.ChangeParameter(MyNode.Guid, false, ArgIndex);
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}
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}
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public abstract class JunctionControlBase : Shape
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{
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private readonly FlowNodeService flowNodeService;
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protected JunctionControlBase()
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{
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this.Width = 25;
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this.Height = 20;
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this.MouseDown += JunctionControlBase_MouseDown;
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this.MouseMove += JunctionControlBase_MouseMove;
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this.MouseLeave += JunctionControlBase_MouseLeave;
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#if DEBUG
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if (DesignerProperties.GetIsInDesignMode(new DependencyObject()))
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return;
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#endif
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flowNodeService = App.GetService<FlowNodeService>();
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}
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#region 控件属性，所在的节点
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public static readonly DependencyProperty NodeProperty =
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DependencyProperty.Register(nameof(MyNode), typeof(NodeModelBase), typeof(JunctionControlBase), new PropertyMetadata(default(NodeModelBase)));
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//public NodeModelBase NodeModel;
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/// <summary>
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/// 所在的节点
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/// </summary>
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public NodeModelBase MyNode
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{
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get { return (NodeModelBase)GetValue(NodeProperty); }
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set { SetValue(NodeProperty, value); }
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}
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#endregion
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#region 控件属性，连接器类型
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public static readonly DependencyProperty JunctionTypeProperty =
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DependencyProperty.Register(nameof(JunctionType), typeof(string), typeof(JunctionControlBase), new PropertyMetadata(default(string)));
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/// <summary>
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/// 控制点类型
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/// </summary>
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public JunctionType JunctionType
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{
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get { return EnumHelper.ConvertEnum<JunctionType>(GetValue(JunctionTypeProperty).ToString()); }
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set { SetValue(JunctionTypeProperty, value.ToString()); }
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}
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#endregion
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protected readonly StreamGeometry StreamGeometry = new StreamGeometry();
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protected override Geometry DefiningGeometry => StreamGeometry;
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/// <summary>
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/// 重绘方法
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/// </summary>
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/// <param name="drawingContext"></param>
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public abstract void Render(DrawingContext drawingContext);
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/// <summary>
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/// 中心点
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/// </summary>
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public abstract Point MyCenterPoint { get; }
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/// <summary>
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/// 禁止连接
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/// </summary>
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private bool IsConnectionDisable;
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/// <summary>
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/// 处理鼠标悬停状态
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/// </summary>
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private bool _isMouseOver;
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public bool IsMouseOver
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{
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get => _isMouseOver;
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set
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{
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if(_isMouseOver != value)
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{
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if(flowNodeService is not null)
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{
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flowNodeService.ConnectingData.CurrentJunction = this;
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}
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_isMouseOver = value;
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InvalidateVisual();
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}
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}
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}
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/// <summary>
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/// 控件重绘事件
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/// </summary>
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/// <param name="drawingContext"></param>
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protected override void OnRender(DrawingContext drawingContext)
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{
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Render(drawingContext);
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}
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/// <summary>
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/// 获取背景颜色
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/// </summary>
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/// <returns></returns>
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protected Brush GetBackgrounp()
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{
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if(flowNodeService is null)
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{
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return Brushes.Transparent;
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}
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var cd = flowNodeService.ConnectingData;
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if(!cd.IsCreateing)
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{
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return Brushes.Transparent;
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}
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if (IsMouseOver)
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{
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if (cd.IsCanConnected)
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{
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if (cd.Type == JunctionOfConnectionType.Invoke)
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{
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return cd.ConnectionInvokeType.ToLineColor();
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}
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else
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{
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return cd.ConnectionArgSourceType.ToLineColor();
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}
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}
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else
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{
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return Brushes.Red;
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}
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}
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else
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{
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return Brushes.Transparent;
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}
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}
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private object lockObj = new object();
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/// <summary>
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/// 控件获得鼠标焦点事件
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void JunctionControlBase_MouseMove(object sender, MouseEventArgs e)
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{
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//if (!GlobalJunctionData.MyGlobalConnectingData.IsCreateing) return;
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//if (IsMouseOver) return;
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IsMouseOver = true;
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//this.InvalidateVisual();
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}
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/// <summary>
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/// 控件失去鼠标焦点事件
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void JunctionControlBase_MouseLeave(object sender, MouseEventArgs e)
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{
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IsMouseOver = false;
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e.Handled = true;
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}
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/// <summary>
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/// 在碰撞点上按下鼠标控件开始进行移动
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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protected void JunctionControlBase_MouseDown(object sender, MouseButtonEventArgs e)
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{
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if (e.LeftButton == MouseButtonState.Pressed)
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{
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var canvas = WpfFuncTool.GetParentOfType<Canvas>(this);
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if (canvas != null)
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{
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var cd = flowNodeService.ConnectingData;
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cd.Reset();
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cd.IsCreateing = true; // 表示开始连接
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cd.StartJunction = this;
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cd.CurrentJunction = this;
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cd.StartPoint = this.TranslatePoint(new Point(this.Width / 2, this.Height / 2), canvas);
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var junctionOfConnectionType = this.JunctionType.ToConnectyionType();
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ConnectionLineShape bezierLine; // 类别
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Brush brushColor; // 临时线的颜色
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if (junctionOfConnectionType == JunctionOfConnectionType.Invoke)
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{
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brushColor = ConnectionInvokeType.IsSucceed.ToLineColor();
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}
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else if(junctionOfConnectionType == JunctionOfConnectionType.Arg)
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{
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brushColor = ConnectionArgSourceType.GetOtherNodeData.ToLineColor();
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}
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else
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{
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return;
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}
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bezierLine = new ConnectionLineShape(LineType.Bezier,
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cd.StartPoint,
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cd.StartPoint,
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brushColor,
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isTop: true); // 绘制临时的线
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Mouse.OverrideCursor = Cursors.Cross; // 设置鼠标为正在创建连线
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cd.MyLine = new MyLine(canvas, bezierLine);
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}
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}
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e.Handled = true;
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}
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private Point GetStartPoint()
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{
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return new Point(this.ActualWidth / 2, this.ActualHeight / 2); // 起始节点选择右侧边缘中心
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}
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}
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}
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