当我的图标装饰器位于我的形状之外时，为什么在 InitializeShapeFields 中找不到它们？

Question

我创建了一个在双击时执行事件的自定义图像字段，并且我正在按照文档所述替换 InitializeShapeFields 中的图标。

当我将图标放在形状 (InnerMiddleRight) 内时，我可以双击它，但是当我将它放在外面 (OuterTopRight) 时，在 InitializeShapeFields() 中找不到装饰器，我无法双击它。当我点击它时，它会突出显示父形状和装饰器，因此它正在识别 link.

关于装饰器上的交互事件，我是否遗漏了什么？

 protected override void InitializeShapeFields(IList<ShapeField> shapeFields)
    {
        base.InitializeShapeFields(shapeFields);           

        ShapeField editCodeField = shapeFields.FirstOrDefault(f => f.Name == "EditCodeDecorator");

        if (editCodeField == null)
            return;

        shapeFields.Remove(editCodeField);

        ImageField editCodeImage = new ShowCodeImageField("EditCodeDecorator")
        {
            DefaultImage = ImageHelper.GetImage(
                PFlowDomainModel.SingletonResourceManager.GetObject("BaseShapeEditCodeDecoratorDefaultImage"))
        };
        shapeFields.Add(editCodeImage);
    }

internal class ShowCodeImageField : ImageField
{
    public static BuildCodeEvent InteractionEvents = new BuildCodeEvent();

    public ShowCodeImageField(string fieldName) : base(fieldName)
    {
    }

    public ShowCodeImageField(string fieldName, Image image) : base(fieldName, image)
    {
    }

    public override void OnDoubleClick(DiagramPointEventArgs e)
    {
        base.OnDoubleClick(e);

        BaseShape shapeHit = e.HitDiagramItem.Shape as BaseShape;

        if (shapeHit != null)
        {
            InteractionEvents.OnRegisterFileBuildEvent(shapeHit);

            e.Handled = true;
        }
    }
}

Answer 1

所以我在查看生成的代码并观察对象的一些属性后解决了我的问题。

这在生成代码中泄露了它：

/// <summary>
    /// Initialize the collection of decorators associated with this shape type.  This method also
    /// creates shape fields for outer decorators, because these are not part of the shape fields collection
    /// associated with the shape, so they must be created here rather than in InitializeShapeFields.
    /// </summary>

因此，要双击形状外的图标装饰器，您需要将 InitialiseDecorators() 中的装饰器替换为具有自定义图像字段的新装饰器，然后不要使用 hit e.HitDiagramItem.Shape.

这是我的解决方案：

protected override void InitializeDecorators(IList<ShapeField> shapeFields, IList<Decorator> decorators)
    {
        base.InitializeDecorators(shapeFields, decorators);

        var oldDecorator = decorators.FirstOrDefault(d => d.Field.Name == "EditCodeDecorator");            

        if (oldDecorator == null)
            return;

        decorators.Remove(oldDecorator);

        ImageField editCodeImageField = new ShowCodeImageField("EditCodeDecorator")
        {
            DefaultImage = ImageHelper.GetImage(
                PFlowDomainModel.SingletonResourceManager.GetObject("BaseShapeEditCodeDecoratorDefaultImage"))
        };

        var newDecorator = new ShapeDecorator(editCodeImageField, ShapeDecoratorPosition.OuterTopRight, new PointD(-0.1, -0.1));
        decorators.Add(newDecorator);
    }

public override void OnDoubleClick(DiagramPointEventArgs e)
    {
        base.OnDoubleClick(e);

        var decoratorHostShape = e.HitDiagramItem.RepresentedElements.Cast<DecoratorHostShape>().First();

        var shape = decoratorHostShape.ParentShape;         

        if (shape != null)
        {
            InteractionEvents.OnRegisterFileBuildEvent(shape);

            e.Handled = true;
        }
    }

希望这可以帮助那里的人，如果有人知道更好的方法请在下面告诉我...

当我的图标装饰器位于我的形状之外时，为什么在 InitializeShapeFields 中找不到它们？

Why are my icon decorators not being found in InitializeShapeFields when they positioned outside my shape?

c#

dsl

visual-studio-2017