public void Drop(IDropInfo dropInfo)
{
if (dropInfo.Data is OverlayBlockDefinitionItemModel dropItem)
{
if (dropInfo.TargetItem is OverlayLinkModel overlayLink && dropInfo.DropTargetAdorner == DropTargetAdorners.Highlight)
{
// change the link definition of an existing text link item
overlayLink.LinkedBlock = dropItem;
}
else
{
var item = new OverlayLinkModel(Container.Items)
{
LinkedBlock = dropItem
};
Container.Items.Insert(dropInfo.UnfilteredInsertIndex, item);
}
}
public void Drop(IDropInfo dropInfo)
{
if (dropInfo.Data is TextBlockDefinitionItemModel textDef)
{
// Dropping the definition into a blockcontainer
if (dropInfo.TargetCollection is IdeCollection <IdeBaseItem> collection && collection.Parent is BlockContainer container)
{
var link = new TextLinkModel(container.Items)
{
LinkedBlock = textDef
};
container.Items.Insert(dropInfo.UnfilteredInsertIndex, link);
}
// change the link definition of an existing text link item
else if (dropInfo.TargetItem is TextLinkModel textLink)
{
textLink.LinkedBlock = textDef;
}
// Dropping the definition into a conditional case
else if (dropInfo.TargetItem is IBaseConditionalCase conditionalCase)
{
var link = new TextLinkModel(conditionalCase.BlockContainer.Items)
{
LinkedBlock = textDef
};
conditionalCase.BlockContainer.Items.Add(link);
}
return;
}
if (dropInfo.Data is OverlayBlockDefinitionItemModel overlayDef)
{
// Dropping the definition into a blockcontainer
if (dropInfo.TargetCollection is IdeCollection <IdeBaseItem> collection && collection.Parent is BlockContainer container)
{
var link = new OverlayLinkModel(container.Items)
{
LinkedBlock = overlayDef
};
container.AddLink(link, dropInfo.UnfilteredInsertIndex);
}
// Dropping the definition into a conditional case
else if (dropInfo.TargetItem is IBaseConditionalCase conditionalCase)
{
var link = new OverlayLinkModel(conditionalCase.BlockContainer.Items)
{
LinkedBlock = overlayDef,
};
conditionalCase.BlockContainer.AddLink(link, conditionalCase.BlockContainer.Items.Count);
}
return;
}
if (dropInfo.Data is OverlayLinkModel overlayLink)
{
if (IsOverlayHandler == false)
{
return;
}
if (dropInfo.TargetItem is IBaseConditionalCase conditionalCase)
{
overlayLink.RemoveItem();
conditionalCase.BlockContainer.AddLink(overlayLink, conditionalCase.BlockContainer.Items.Count);
}
else if (dropInfo.TargetItem is IBaseBlock block)
{
overlayLink.RemoveItem();
int insertIndex = dropInfo.UnfilteredInsertIndex;
(block.Source.Parent as BlockContainer).AddLink(overlayLink, insertIndex);
}
}
else
{
DragDrop.DefaultDropHandler.Drop(dropInfo);
}
}
