public bool ForEach(Func <CadObjTreeItem, int, bool> func, int level)
{
if (!func(this, level))
{
return(false);
}
if (!IsExpand)
{
return(true);
}
if (mChildren == null)
{
return(true);
}
int i;
for (i = 0; i < mChildren.Count; i++)
{
CadObjTreeItem item = mChildren[i];
if (!item.ForEach(func, level + 1))
{
return(false);
}
}
return(true);
}
protected virtual void OnCheckChanged(CadObjTreeItem item)
{
if (CheckChanged != null)
{
CheckChanged(item);
}
}
public void AttachRoot(CadObjTreeItem root)
{
mRoot = root;
mRoot.IsExpand = true;
RecalcSize();
}
public virtual void Add(CadObjTreeItem item)
{
if (mChildren == null)
{
mChildren = new List <CadObjTreeItem>();
}
item.Parent = this;
mChildren.Add(item);
}
public int GetLevel()
{
int i = 0;
CadObjTreeItem parent = Parent;
while (parent != null)
{
i++;
parent = parent.Parent;
}
return(i);
}
public void ForEachAll(Action <CadObjTreeItem> action)
{
action(this);
if (mChildren == null)
{
return;
}
int i;
for (i = 0; i < mChildren.Count; i++)
{
CadObjTreeItem item = mChildren[i];
item.ForEachAll(action);
}
}
public CadObjTreeItem GetAt(int n)
{
int i = 0;
CadObjTreeItem ret = null;
ForEach(item =>
{
if (n == i)
{
ret = item;
return(false);
}
i++;
return(true);
});
return(ret);
}
protected void CadObjectTree_MouseDown(object sender, MouseButtonEventArgs e)
{
Point p = e.GetPosition(this);
int idx = (int)(p.Y / mItemHeight);
if (!ShowRoot)
{
idx++;
}
CadObjTreeItem item = mRoot.GetAt(idx);
if (item == null)
{
return;
}
if (e.RightButton == MouseButtonState.Pressed)
{
mRoot.ForEachAll((v) => {
v.IsChecked = false;
});
item.IsChecked = true;
OnCheckChanged(item);
if (ItemCommand != null)
{
mContextMenu.Items.Clear();
List <MenuItem> list = item.GetContextMenuItems();
if (list != null)
{
foreach (MenuItem m in list)
{
SetupContextMenuItem(m);
mContextMenu.Items.Add(m);
}
}
if (mContextMenu.Items.Count > 0)
{
ContextMenu = mContextMenu;
}
else
{
ContextMenu = null;
}
base.OnMouseDown(e);
}
}
else
{
if (!CadKeyboard.IsCtrlKeyDown())
{
mRoot.ForEachAll((v) => {
v.IsChecked = false;
});
}
int level = item.GetLevel();
if (item.Children != null)
{
if (p.X > (level) * mIndentSize)
{
item.IsChecked = item.IsChecked == false;
OnCheckChanged(item);
}
else
{
item.IsExpand = item.IsExpand == false;
RecalcSize();
}
}
else
{
item.IsChecked = item.IsChecked == false;
OnCheckChanged(item);
}
}
InvalidateVisual();
}
