void TreeViewAfterLabelEdit(object sender, NodeLabelEditEventArgs e)
{
var label = e.Label;
if (label != null && AfterLabelEdit != null)
{
// Fire the event AFTER tree node editing took place. Weired behaviour otherwise.
// See http://www.codeproject.com/KB/tree/CustomizedLabelEdit.aspx and comments
var doItLater = new DoItLater(
delegate()
{
var args = new VVVV.Core.Viewer.LabelEditEventArgs(e.Node.Tag, label);
AfterLabelEdit(this, args);
if (args.CancelEdit)
{
e.Node.BeginEdit();
}
else
{
FTreeView.SelectedNode = e.Node;
}
});
FTreeView.BeginInvoke(doItLater);
}
e.CancelEdit = true;
}
void FTreeViewMouseMove(object sender, MouseEventArgs e)
{
if (!ShowTooltip)
{
return;
}
var treeNode = FTreeView.GetNodeAt(e.Location) as MapperTreeNode;
if (treeNode != FLastTooltipNode)
{
InvalidateTreeNode(FLastTooltipNode);
FLastTooltipNode = treeNode;
InvalidateTreeNode(FLastTooltipNode);
if (treeNode != null)
{
var mapper = treeNode.Mapper;
if (mapper.CanMap <IDescripted>())
{
string tip = mapper.Map <IDescripted>().Description;
if (!string.IsNullOrEmpty(tip))
{
FToolTip.Show(tip, FTreeView, e.X + 15, treeNode.Bounds.Y + 30);
return;
}
}
}
HideToolTip();
}
}
public override void Reload()
{
FTreeView.BeginUpdate();
if (FRootMapper != null)
{
FRootMapper.Dispose();
}
FRootMapper = new ModelMapper(Input, Registry);
if (ShowRoot)
{
var rootNode = new MapperTreeNode(FRootMapper);
rootNode.Expand();
FTreeView.Nodes.Add(rootNode);
}
else
{
var items = FRootMapper.Map <IParent>();
if (FSynchronizer != null)
{
FSynchronizer.Dispose();
}
FSynchronizer = FTreeView.Nodes.SyncWith(items.Childs, item => new MapperTreeNode(FRootMapper.CreateChildMapper(item)));
}
FTreeView.EndUpdate();
}
void FTreeViewAfterSelect(object sender, TreeViewEventArgs e)
{
SelectedNode = e.Node;
var doItLater = new DoItLater(() => OnSelectionChanged(CurrentSelection));
FTreeView.BeginInvoke(doItLater);
}
void InvalidateTreeNode(TreeNode treeNode)
{
if (treeNode != null)
{
var bounds = new Rectangle(0, treeNode.Bounds.Y, FTreeView.Width, treeNode.Bounds.Height);
FTreeView.Invalidate(bounds);
}
}
void TreeViewItemDrag(object sender, ItemDragEventArgs e)
{
var treeNode = e.Item as MapperTreeNode;
var mapper = treeNode.Mapper;
if (mapper.CanMap <IDraggable>())
{
var dragable = mapper.Map <IDraggable>();
// check if this item allows being dragged
if (dragable.AllowDrag())
{
// start the dragdrop operation
FTreeView.DoDragDrop(dragable.ItemToDrag(), DragDropEffects.All);
}
}
}
void FTreeViewMouseDown(object sender, MouseEventArgs e)
{
HideToolTip();
var treeNode = FTreeView.GetNodeAt(e.X, e.Y) as MapperTreeNode;
if (treeNode != null)
{
var mapper = treeNode.Mapper;
//middle mousebutton is not handled in TreeViewNode_MouseClick, so do it here
//as it is also obviously not handled in TreeView_MouseClick
if (e.Button == MouseButtons.Middle)
{
OnClick(mapper, e);
}
else
{
OnMouseDown(mapper, e);
}
}
}
