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MainWindow.xaml.cs
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MainWindow.xaml.cs
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using DevExpress.Diagram.Core;
using DevExpress.Xpf.Diagram;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
namespace InputOutputShapes
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
InitializeStencils();
diagram.DocumentSource = @"..\..\DefaultDocument.xml";
diagram.QueryConnectionPoints += Diagram_QueryConnectionPoints;
}
void InitializeStencils()
{
DiagramStencil myStencil = new DiagramStencil("CustomStencil", "Custom Stencil");
FactoryItemTool myContainerTool = new FactoryItemTool("Decoder", () => "Decoder", d => CreateDecoderContianer());
myStencil.RegisterTool(myContainerTool);
diagram.Stencils = new DiagramStencilCollection(myStencil);
diagram.SelectedStencils = new StencilCollection(myStencil.Id);
}
private void Diagram_QueryConnectionPoints(object sender, DiagramQueryConnectionPointsEventArgs e)
{
DiagramShape shape = e.HoveredItem as DiagramShape;
if (shape != null)
{
if (string.Equals(shape.Tag, "input"))
{
e.ItemConnectionBorderState = ConnectionElementState.Hidden;
if (e.ConnectorPointType == ConnectorPointType.Begin)
e.ItemConnectionPointStates.ToList().ForEach(cp => cp.State = ConnectionElementState.Disabled);
}
else if (string.Equals(shape.Tag, "output"))
{
e.ItemConnectionBorderState = ConnectionElementState.Hidden;
if (e.ConnectorPointType == ConnectorPointType.End)
e.ItemConnectionPointStates.ToList().ForEach(cp => cp.State = ConnectionElementState.Disabled);
}
}
}
public DiagramContainer CreateDecoderContianer()
{
DiagramContainer decoderContainer = new DiagramContainer()
{
Header = "Decoder",
ItemsCanSelect = false,
ItemsCanMove = false,
DragMode = ContainerDragMode.ByAnyPoint,
ShowHeader = true,
CanAttachConnectorBeginPoint = false,
CanAttachConnectorEndPoint = false,
Width = 120,
Height = 230,
};
decoderContainer.Items.Add(CreateInputPointShape(new Point(0, 40)));
decoderContainer.Items.Add(CreateLabelShape(new Point(12, 30), "input 1", Sides.Left));
decoderContainer.Items.Add(CreateInputPointShape(new Point(0, 140)));
decoderContainer.Items.Add(CreateLabelShape(new Point(12, 130), "input 2", Sides.Left));
decoderContainer.Items.Add(CreateOutputPointShape(new Point(110, 20)));
decoderContainer.Items.Add(CreateLabelShape(new Point(60, 10), "output 1", Sides.Right));
decoderContainer.Items.Add(CreateOutputPointShape(new Point(110, 70)));
decoderContainer.Items.Add(CreateLabelShape(new Point(60, 60), "output 2", Sides.Right));
decoderContainer.Items.Add(CreateOutputPointShape(new Point(110, 120)));
decoderContainer.Items.Add(CreateLabelShape(new Point(60, 110), "output 3", Sides.Right));
decoderContainer.Items.Add(CreateOutputPointShape(new Point(110, 170)));
decoderContainer.Items.Add(CreateLabelShape(new Point(60, 160), "output 4", Sides.Right));
return decoderContainer;
}
DiagramShape CreateInputPointShape(Point position)
{
return new DiagramShape()
{
Tag = "input",
Anchors = Sides.Left,
Shape = BasicShapes.Ellipse,
Position = position,
MinWidth = 10,
MinHeight = 10,
ConnectionPoints = new DiagramPointCollection(new Point[] { new Point(0, 0.5) }),
Background = Brushes.Black
};
}
DiagramShape CreateOutputPointShape(Point position)
{
return new DiagramShape()
{
Tag = "output",
Anchors = Sides.Right,
Shape = BasicShapes.Ellipse,
Position = position,
MinWidth = 10,
MinHeight = 10,
ConnectionPoints = new DiagramPointCollection(new Point[] { new Point(1, 0.5) }),
Background = Brushes.Green
};
}
DiagramShape CreateLabelShape(Point position, string text, Sides anchors)
{
return new DiagramShape()
{
Content = text,
Position = position,
Anchors = anchors,
StrokeThickness = 0,
Foreground = Brushes.Black,
Background = Brushes.Transparent,
CanAttachConnectorBeginPoint = false,
CanAttachConnectorEndPoint = false,
Height = 30
};
}
}
}