/// <summary>
///
/// </summary>
/// <param name="text"></param>
/// <returns></returns>
public UListViewItem Add(string text)
{
UListViewItemImp child = new UListViewItemImp(text);
_children.Add(child);
return(child);
}
/// <summary>
///
/// </summary>
/// <param name="item"></param>
public void Remove(UListViewItem item)
{
UListViewItemImp imp = item as UListViewItemImp;
if (_children.Contains(imp))
{
_children.Remove(imp);
}
}
/// <summary>
///
/// </summary>
private void ProcessLeftMouseButton()
{
bool selectionChanged = false;
Vector2 mousePt = Event.current.mousePosition - new Vector2(_rect.x, _rect.y) + _scrollPos;
foreach (UListViewItemImp child in _children)
{
if (child.Hit(mousePt))
{
if (Event.current.control)
{
child.selected = !child.selected;
if (child.selected)
{
_selections.Add(child);
}
else
{
_selections.Remove(child);
}
selectionChanged = true;
}
else if (Event.current.shift)
{
int selectionCount = _selections.Count;
if (_selections.Count == 0)
{
child.selected = true;
_selections.Add(child);
}
else
{
UListViewItemImp first = _selections[0];
int firstIdx = _children.IndexOf(first);
int childIdx = _children.IndexOf(child);
ClearSelectedList();
int index = Mathf.Min(firstIdx, childIdx);
int count = Mathf.Abs(firstIdx - childIdx) + 1;
for (int i = 0; i < count; i++)
{
UListViewItemImp item = _children[index + i];
item.selected = true;
_selections.Add(item);
}
}
if (_selections.Count != selectionCount)
{
selectionChanged = true;
}
}
else
{
ClearSelectedList();
child.selected = !child.selected;
if (child.selected)
{
_selections.Add(child);
}
selectionChanged = true;
}
if (selectionChanged)
{
//Debug.Log("listview selection changed");
if (OnSelectionChanged != null)
{
OnSelectionChanged(new UEventArgs(this));
}
}
//Event.current.Use();
return;
}
}
ClearSelectedList();
}
/// <summary>
///
/// </summary>
private void ProcessKeyboardEvent()
{
if (_children.Count == 0)
{
return;
}
if (Event.current.type == EventType.KeyDown)
{
if (Event.current.keyCode == KeyCode.DownArrow)
{
if (_selections.Count == 0)
{
UListViewItemImp child = _children[0];
child.selected = true;
_selections.Add(child);
}
else
{
UListViewItemImp lastItem = _selections[_selections.Count - 1];
int index = _children.IndexOf(lastItem);
if (index < _children.Count - 1)
{
ClearSelectedList();
UListViewItemImp item = _children[index + 1];
item.selected = true;
_selections.Add(item);
}
}
}
else if (Event.current.keyCode == KeyCode.UpArrow)
{
if (_selections.Count == 0)
{
UListViewItemImp child = _children[0];
child.selected = true;
_selections.Add(child);
}
else
{
UListViewItemImp firstItem = _selections[0];
int index = _children.IndexOf(firstItem);
if (index > 0)
{
ClearSelectedList();
UListViewItemImp item = _children[index - 1];
item.selected = true;
_selections.Add(item);
}
}
}
else
{
//
}
Event.current.Use();
}
}
