private void MenuItem_Click(object sender, RoutedEventArgs e)
{
var ele = sender as FrameworkElement;
if (ele == null || ele.Tag == null)
{
return;
}
if (ele.Tag.Equals("del"))
{
if (SelectedNodeBorder != null && SelectedNodeBorder.IsSelected == true)
{
RemoveNode(SelectedNodeBorder);
SelectedNodeBorder = null;
}
else if (SelectedRunLine != null && SelectedRunLine.IsSelected == true)
{
RemoveLine(SelectedRunLine);
SelectedRunLine = null;
}
}
else if (ele.Tag.Equals("test"))
{
for (int i = 0; i < 10; i++)
{
StartTest();
}
}
}
private UCLine MakeLine(RunLineModel mode)
{
var line = new UCLine();
line.Height = 15;
line.Cursor = Cursors.Hand;
line.Background = Brushes.Gray;
line.MouseLeftButtonUp += Line_MouseLeftButtonUp;
return(line);
}
/// <summary>
/// 自动优化线的连接位置
/// </summary>
/// <param name="line"></param>
private void AutoOptimizeLine(UCLine line)
{
var startNode = nodeDic.FirstOrDefault(a => a.Value.Name.Equals(GetRunLine(line).StartNode.Name)).Key;
var endNode = nodeDic.FirstOrDefault(a => GetRunLine(line).EndNode != null && a.Value.Name.Equals(GetRunLine(line).EndNode.Name)).Key;
if (startNode == null || endNode == null)
{
return;
}
line.StartPoint = GetConnectPoint(startNode, endNode.CircleCenterPoint);
line.EndPoint = GetConnectPoint(endNode, startNode.CircleCenterPoint);
}
private bool RemoveLine(UCLine line)
{
if (line != null)
{
if (MessageBox.Show("确认删除该行驶路线？", "确认", MessageBoxButton.OKCancel) != MessageBoxResult.OK)
{
return(false);
}
canvasPanel.Children.Remove(line);
runLineDic.Remove(line);
}
return(true);
}
/// <summary>
/// 添加节点与节点间的连线
/// </summary>
/// <param name="sourceNode"></param>
/// <param name="objNode"></param>
private void AddLine(UCNode sourceNode, UCNode objNode)
{
var lineMode = new RunLineModel();
var line = new UCLine();
var x = sourceNode.X * canvasPanel.ActualWidth - sourceNode.Width / 2;
var y = sourceNode.Y * canvasPanel.ActualHeight - sourceNode.Height / 2;
line.StartPoint = new Point(x, y);
if (objNode != null)
{
x = objNode.X * canvasPanel.ActualWidth - objNode.Width / 2;
y = objNode.Y * canvasPanel.ActualHeight - objNode.Height / 2;
line.EndPoint = new Point(x, y);
}
canvasPanel.Children.Add(line);
runLineDic.Add(line, lineMode);
}
private void Line_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
var line = sender as UCLine;
if (line == null)
{
return;
}
if (SelectedRunLine != null && SelectedRunLine.IsSelected == false)
{
//防止更改线的节点后，选择了节点而SelectedRunLine没有重置的问题
SelectedRunLine = null;
SelectedRunLine = line;
_operateStatus = OperateStatus.SelectedLine;
}
else if (line != SelectedRunLine &&
_operateStatus != OperateStatus.MoveSourceNode &&
_operateStatus != OperateStatus.MoveObjNode
)
{
//变更选择的行驶路线
line.IsSelected = true;
if (SelectedRunLine != null)
{
SelectedRunLine.IsSelected = false;
}
SelectedRunLine = line;
_operateStatus = OperateStatus.SelectedLine;
}
else if (_operateStatus == OperateStatus.SelectedLine)
{
var point = e.GetPosition(canvasPanel);
//若首尾x坐标相差很大(>30)则使用x区分首尾，否则使用y区分
if (Math.Abs(SelectedRunLine.EndPoint.X - SelectedRunLine.StartPoint.X) > 30)
{
if (Math.Abs(point.X - SelectedRunLine.StartPoint.X) < Math.Abs(point.X - SelectedRunLine.EndPoint.X))
{
_operateStatus = OperateStatus.MoveSourceNode;
}
else
{
_operateStatus = OperateStatus.MoveObjNode;
}
}
else
{
if (Math.Abs(point.Y - SelectedRunLine.StartPoint.Y) < Math.Abs(point.Y - SelectedRunLine.EndPoint.Y))
{
_operateStatus = OperateStatus.MoveSourceNode;
}
else
{
_operateStatus = OperateStatus.MoveObjNode;
}
}
if (SelectedNodeBorder != null)
{
SelectedNodeBorder.IsSelected = false;
SelectedNodeBorder = null;
}
}
}
private RunLineModel GetRunLine(UCLine line)
{
return(runLineDic[line]);
}
public TestCircle()
{
InitializeComponent();
var centerPoint = new Point(20, 20);
var e = new Ellipse();
e.Width = 100;
e.Height = 100;
e.SetValue(Canvas.LeftProperty, centerPoint.X - e.Width / 2);
e.SetValue(Canvas.TopProperty, centerPoint.Y - e.Height / 2);
e.Stroke = Brushes.Black;
e.StrokeThickness = 1;
canvas.Children.Add(e);
var point = new Point(150, 150);
//double angle = Math.Atan2((point.Y - 50), (point.X - 50));// * 180 / Math.PI;
//Debug.WriteLine(angle);
//var x = 50 + 50 * Math.Cos(angle);
//var y = 50 + 50 * Math.Sin(angle);
//var line = new Line();
//line.X1 = 50;
//line.Y1 = 50;
//line.X2 = x;
//line.Y2 = y;
//line.Stroke = Brushes.Red;
//canvas.Children.Add(line);
var line = new Line();
line.X1 = centerPoint.X;
line.Y1 = centerPoint.Y;
line.X2 = point.X;
line.Y2 = point.Y;
line.Stroke = Brushes.Blue;
canvas.Children.Add(line);
var angle = -137.23117460803127;
var border = new Border();
border.SetValue(Canvas.LeftProperty, centerPoint.X);
border.SetValue(Canvas.TopProperty, centerPoint.Y - 5);
border.Height = 10;
border.Width = 100;
border.Background = Brushes.Blue;
border.Opacity = 0.2;
var f = new RotateTransform(angle);
f.CenterX = 0; //centerPoint.X;
f.CenterY = 5; //centerPoint.Y;
border.RenderTransform = f;
canvas.Children.Add(border);
//border.SetValue(Canvas.LeftProperty, centerPoint.X - 2.5);
//border.SetValue(Canvas.TopProperty, centerPoint.Y + 5);
var runLine = new UCLine();
runLine.Height = 15;
runLine.StartPoint = new Point(centerPoint.X, centerPoint.Y - runLine.Height / 2);
runLine.EndPoint = point;
runLine.Cursor = Cursors.Hand;
canvas.Children.Add(runLine);
}