Beispiel #1
0
        void print_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
        {
            isMove     = false;
            IsActivity = false;
            //e.Handled = false;
            FrameworkElement element = sender as FrameworkElement;

            element.ReleaseMouseCapture();
            if (_newLine == null)
            {
                return;
            }
            Point p = e.GetPosition(print);

            if (p == _newLine.StartPoint)
            {
                RemoveArrowLine(_newLine);
            }
            else
            {
                //-->如果当前的箭头,所连接的控件,与移动进去的控件不是同一控件的话。
                foreach (var v in DictControls)
                {
                    IActivity iact = v.Value as IActivity;
                    if (null == iact)
                    {
                        continue;
                    }
                    //-->获取当前控件的
                    double top  = Canvas.GetTop(v.Value);
                    double left = Canvas.GetLeft(v.Value);
                    //-->判断当前的箭头进入Activity控件区域
                    if ((p.X >= left && p.X <= (left + v.Value.Width)) && (p.Y >= top && p.Y <= (top + v.Value.Height)))
                    {
                        //-->判断当前的箭头是否可以连接到Activity控件上去。
                        if (!iact.IsConnection())
                        {
                            MessageBox.Show("不能连接");
                            RemoveArrowLine(_newLine);
                            continue;
                        }
                        //-->当前线的尾部控件与当前进入的控件相同,不进行操作
                        if (null != _newLine.ArrowFootControl && _newLine.ArrowFootControl.Equals(v.Value))
                        {
                            continue;
                        }
                        IActivity arrowFoot = _newLine.ArrowFootControl as IActivity;
                        if (arrowFoot != null && arrowFoot.CheckedArrowIsExists(iact))
                        {
                            MessageBox.Show("已经存在相同的线了");
                            RemoveArrowLine(_newLine);
                            continue;
                        }
                        string _point = string.Format("X_{0}_Y_{1}", _newLine.StartPoint.X, _newLine.StartPoint.Y);
                        if (!iact.DictArrowFootPoint.ContainsKey(_newLine.Name))
                        {
                            iact.DictArrowCapPoint.Add(_newLine.Name, _newLine);
                            _newLine.ArrowCapControl = v.Value;
                        }
                        break;
                    }
                }
            }
            _newLine = null;
        }