Esempio n. 1
0
        protected override void OnDrop(DragEventArgs e)
        {
            base.OnDrop(e);
            DragObject dragObject = e.Data.GetData(typeof(DragObject)) as DragObject;

            if (dragObject != null && !String.IsNullOrEmpty(dragObject.Xaml))
            {
                //子流程的新建
                if (dragObject.Xaml.Contains("子流程"))
                {
                    FlowChar flowChar       = new FlowChar();
                    string   str1           = Directory.GetCurrentDirectory();
                    string   Enclosure_Path = str1 + "\\FlowChar";
                    if (!Directory.Exists(Enclosure_Path))         // 返回bool类型,存在返回true,不存在返回false
                    {
                        Directory.CreateDirectory(Enclosure_Path); //不存在则创建路径
                    }
                    var filepath = Enclosure_Path + $"\\{DateTime.Now.ToString("yyyyMMddhhmmssMM")}" + ".xml";
                    flowChar.FlowcharPath = filepath;
                    flowChar.Flowname     = "子流程1";
                    flowChar.IcoImage     = "/WpfApp3;component/Image/flowchild.png";
                    flowChar.Flowtype     = 1;
                    XElement root = new XElement("Root");
                    try
                    {
                        root.Save(filepath);
                        RememberClass rememberClass = this.Tag as RememberClass;
                        rememberClass.AddRemember(flowChar, false);
                        if (flowChar != null)
                        {
                            Grid grid = new Grid();
                            grid.Width  = 80;
                            grid.Height = 70;
                            RowDefinition row1 = new RowDefinition();
                            RowDefinition row2 = new RowDefinition();
                            row2.Height = GridLength.Auto;
                            grid.RowDefinitions.Add(row1);
                            grid.RowDefinitions.Add(row2);
                            Image image = new Image();
                            image.Source = new BitmapImage(new Uri(flowChar.IcoImage, UriKind.RelativeOrAbsolute));
                            Button button = new Button();
                            button.Content = "编辑";
                            button.Margin  = new Thickness(5, 2, 5, 2);
                            button.Tag     = flowChar;
                            button.Click  += OpenFlowChar;
                            grid.Children.Add(image);
                            grid.Children.Add(button);
                            Grid.SetRow(image, 0);
                            Grid.SetRow(button, 1);
                            DesignerItem newItem = null;
                            // Object content = XamlReader.Load(XmlReader.Create(new StringReader(dragObject.Xaml)));
                            newItem         = new DesignerItem();
                            newItem.Content = grid;
                            Point position = e.GetPosition(this);
                            // Size desiredSize = dragObject.DesiredSize.Value;
                            newItem.Width  = grid.Width;
                            newItem.Height = grid.Height;
                            DesignerCanvas.SetLeft(newItem, Math.Max(0, position.X - newItem.Width / 2));
                            DesignerCanvas.SetTop(newItem, Math.Max(0, position.Y - newItem.Height / 2));
                            //else
                            //{
                            //    DesignerCanvas.SetLeft(newItem, Math.Max(0, position.X));
                            //    DesignerCanvas.SetTop(newItem, Math.Max(0, position.Y));
                            //}
                            Canvas.SetZIndex(newItem, this.Children.Count);
                            this.Children.Add(newItem);
                            SetConnectorDecoratorTemplate(newItem);
                            //update selection
                            this.SelectionService.SelectItem(newItem);
                            newItem.Focus();
                            rememberClass.LoadFlowMD();
                            e.Handled = true;
                        }
                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show(ex.StackTrace, ex.Message, MessageBoxButton.OK, MessageBoxImage.Error);
                    }
                }
                //基本流程
                else
                {
                    DesignerItem newItem = null;
                    Object       content = XamlReader.Load(XmlReader.Create(new StringReader(dragObject.Xaml)));

                    if (content != null)
                    {
                        newItem         = new DesignerItem();
                        newItem.Content = content;

                        Point position = e.GetPosition(this);

                        if (dragObject.DesiredSize.HasValue)
                        {
                            Size desiredSize = dragObject.DesiredSize.Value;
                            newItem.Width  = desiredSize.Width;
                            newItem.Height = desiredSize.Height;

                            DesignerCanvas.SetLeft(newItem, Math.Max(0, position.X - newItem.Width / 2));
                            DesignerCanvas.SetTop(newItem, Math.Max(0, position.Y - newItem.Height / 2));
                        }
                        else
                        {
                            DesignerCanvas.SetLeft(newItem, Math.Max(0, position.X));
                            DesignerCanvas.SetTop(newItem, Math.Max(0, position.Y));
                        }

                        Canvas.SetZIndex(newItem, this.Children.Count);
                        this.Children.Add(newItem);
                        SetConnectorDecoratorTemplate(newItem);

                        //update selection
                        this.SelectionService.SelectItem(newItem);
                        newItem.Focus();
                    }

                    e.Handled = true;
                }
            }
            else
            {
                FlowChar flowChar = e.Data.GetData(typeof(FlowChar)) as FlowChar;
                if (flowChar != null)
                {
                    Grid grid = new Grid();
                    grid.Width  = 80;
                    grid.Height = 70;
                    RowDefinition row1 = new RowDefinition();
                    RowDefinition row2 = new RowDefinition();
                    row2.Height = GridLength.Auto;
                    grid.RowDefinitions.Add(row1);
                    grid.RowDefinitions.Add(row2);
                    Image image = new Image();
                    image.Source = new BitmapImage(new Uri(flowChar.IcoImage, UriKind.RelativeOrAbsolute));
                    Button button = new Button();
                    button.Content = "编辑";
                    button.Margin  = new Thickness(5, 2, 5, 2);
                    button.Tag     = flowChar;
                    button.Click  += OpenFlowChar;
                    grid.Children.Add(image);
                    grid.Children.Add(button);
                    Grid.SetRow(image, 0);
                    Grid.SetRow(button, 1);
                    DesignerItem newItem = null;
                    // Object content = XamlReader.Load(XmlReader.Create(new StringReader(dragObject.Xaml)));


                    newItem         = new DesignerItem();
                    newItem.Content = grid;

                    Point position = e.GetPosition(this);


                    // Size desiredSize = dragObject.DesiredSize.Value;
                    newItem.Width  = grid.Width;
                    newItem.Height = grid.Height;

                    DesignerCanvas.SetLeft(newItem, Math.Max(0, position.X - newItem.Width / 2));
                    DesignerCanvas.SetTop(newItem, Math.Max(0, position.Y - newItem.Height / 2));

                    //else
                    //{
                    //    DesignerCanvas.SetLeft(newItem, Math.Max(0, position.X));
                    //    DesignerCanvas.SetTop(newItem, Math.Max(0, position.Y));
                    //}

                    Canvas.SetZIndex(newItem, this.Children.Count);
                    this.Children.Add(newItem);
                    SetConnectorDecoratorTemplate(newItem);

                    //update selection
                    this.SelectionService.SelectItem(newItem);
                    newItem.Focus();


                    e.Handled = true;
                }
            }
        }