/// <summary>
/// Set the source sub item before the target one.
/// </summary>
/// <param name="targetNvd">The target node view data in the current view.</param>
/// <param name="sourceItem">The source sub item of the current node view data.</param>
/// <param name="targetItem">The target sub item of the target node view data.</param>
public bool SetSubItem(NodeViewData targetNvd, SubItemAttachment sourceItem, SubItemAttachment targetItem, bool insertPreviously, bool isCopied)
{
if (targetNvd == null ||
sourceItem == null || sourceItem.Attachment == null ||
!isCopied && targetItem == sourceItem ||
!targetNvd.Node.AcceptsAttachment(sourceItem.Attachment))
{ return false; }
if (!isCopied) {
this.Node.RemoveAttachment(sourceItem.Attachment);
this.RemoveSubItem(sourceItem);
} else {
sourceItem = sourceItem.Clone(targetNvd.Node) as SubItemAttachment;
sourceItem.Attachment.ResetId();
}
if (targetItem == null) {
targetNvd.Node.AddAttachment(sourceItem.Attachment);
} else {
Debug.Check(targetItem.Attachment != null);
for (int i = 0; i < targetNvd.Node.Attachments.Count; ++i) {
if (targetNvd.Node.Attachments[i] == targetItem.Attachment) {
targetNvd.Node.AddAttachment(sourceItem.Attachment, insertPreviously ? i : i + 1);
break;
}
}
}
if (targetItem == null) {
targetNvd.AddSubItem(sourceItem);
} else {
for (int i = 0; i < targetNvd.SubItems.Count; ++i) {
if (targetNvd.SubItems[i] == targetItem) {
targetNvd.AddSubItem(sourceItem, insertPreviously ? i : i + 1);
break;
}
}
}
bool setDirty = false;
if (!isCopied) {
sourceItem.Attachment.OnPropertyValueChanged(!setDirty);
setDirty = true;
}
for (int i = 0; i < targetNvd.SubItems.Count; ++i) {
SubItemAttachment attach = targetNvd.SubItems[i] as SubItemAttachment;
if (attach != null && attach != sourceItem) {
attach.Attachment.OnPropertyValueChanged(!setDirty);
setDirty = true;
}
}
targetNvd.SelectedSubItem = sourceItem;
return true;
}
private void DrawFSMCurve(SubItemAttachment attachment, Graphics graphics, Pen edgePen, RectangleF startBox, RectangleF endBox, bool isPointedBySelf)
{
float penHalfWidth = edgePen.Width * 0.5f;
float centerY = startBox.Top + startBox.Height * 0.5f;
PointF startPos = new PointF(startBox.Right, centerY - penHalfWidth);
PointF endPos = new PointF(endBox.Left, endBox.Top + 5.0f);
if (endBox.Right < startBox.Left) {
startPos.X = startBox.Left;
endPos.X = endBox.Right;
} else if (endBox.Left < startBox.Right) {
startPos.X = startBox.Left;
endPos.X = endBox.Left;
}
float middleX = startPos.X + (endPos.X - startPos.X) * 0.5f;
float controlStartX = middleX;
float controlEndX = middleX;
if (endBox.Right < startBox.Left) {
} else if (endBox.Left < startBox.Right) {
if (endBox.Left < startBox.Left)
{ controlEndX = endBox.Left - (middleX - endBox.Left); }
else
{ controlStartX = startBox.Left - (middleX - startBox.Left); }
}
if (isPointedBySelf) {
controlStartX -= startBox.Width * 0.5f;
}
edgePen.EndCap = System.Drawing.Drawing2D.LineCap.ArrowAnchor;
edgePen.CustomEndCap = new System.Drawing.Drawing2D.AdjustableArrowCap(edgePen.Width, edgePen.Width);
if (attachment.DrawnPath == null) {
attachment.DrawnPath = new System.Drawing.Drawing2D.GraphicsPath();
} else {
attachment.DrawnPath.Reset();
}
attachment.DrawnPath.AddBezier(startPos.X, startPos.Y,
controlStartX, startPos.Y,
controlEndX, endPos.Y,
endPos.X, endPos.Y);
graphics.DrawPath(edgePen, attachment.DrawnPath);
//bool isIn = attachment.DrawnPath.IsOutlineVisible(startPos.X + 0.01f, startPos.Y + 0.01f, edgePen);
//Debug.Check(isIn);
}
/// <summary>
/// Set the source sub item before the target one.
/// </summary>
/// <param name="targetNvd">The target node view data in the current view.</param>
/// <param name="targetItem">The target sub item of the target node view data.</param>
/// <param name="sourceItem">The source sub item of the current node view data.</param>
public bool SetSubItem(NodeViewData targetNvd, SubItemAttachment targetItem, SubItemAttachment sourceItem, bool insertPrevious)
{
if (targetNvd == null ||
targetItem == null || targetItem.Attachment == null ||
sourceItem == null || sourceItem.Attachment == null ||
targetItem == sourceItem)
return false;
this.Node.RemoveAttachment(sourceItem.Attachment);
for (int i = 0; i < targetNvd.Node.Attachments.Count; ++i)
{
if (targetNvd.Node.Attachments[i] == targetItem.Attachment)
{
targetNvd.Node.AddAttachment(sourceItem.Attachment, insertPrevious ? i : i + 1);
break;
}
}
this.RemoveSubItem(sourceItem);
for (int i = 0; i < targetNvd.SubItems.Count; ++i)
{
if (targetNvd.SubItems[i] == targetItem)
{
targetNvd.AddSubItem(sourceItem, insertPrevious ? i : i + 1);
break;
}
}
sourceItem.Attachment.OnPropertyValueChanged(true);
for (int i = 0; i < targetNvd.SubItems.Count; ++i)
{
SubItemAttachment attach = targetNvd.SubItems[i] as SubItemAttachment;
if (attach != null && attach != sourceItem)
attach.Attachment.OnPropertyValueChanged(false);
}
return true;
}
