private void FocusNextItem(LinkItem linkItem, bool upNotDown)
{
if (upNotDown == false)
{
int index = _items.IndexOf(linkItem);
if (index < _items.Count - 1)
{
_items[index + 1].Controls[1].Focus();
}
else
{
_items[0].Controls[1].Focus();
}
}
else
{
int index = _items.IndexOf(linkItem);
if (index > 0)
{
_items[index - 1].Controls[0].Focus();
}
else
{
_items[_items.Count - 1].Controls[0].Focus();
}
}
scrollbarList.ThumbPosition = panelList.VerticalScroll.Value;
}
private void RepositionItems(LinkItem linkItem, int difference)
{
int index = _items.IndexOf(linkItem);
for (int i = index + 1; i < _items.Count; i++)
{
_items[i].Location = new System.Drawing.Point(_items[i].Location.X, _items[i].Location.Y + difference);
}
UpdateScrollBar();
}
public void SetLinkItemInfo(LinkItem linkItem, System.Drawing.Point location)
{
linkItem.Location = location;
linkItem.Width = this.Width - SystemInformation.VerticalScrollBarWidth;
linkItem.MouseWheel += scrollbarList.AdvancedScrollbar_MouseWheel;
linkItem.Controls[0].MouseWheel += scrollbarList.AdvancedScrollbar_MouseWheel;
linkItem.Controls[1].MouseWheel += scrollbarList.AdvancedScrollbar_MouseWheel;
linkItem.OnLinkItemResizedVertically += RepositionItems;
linkItem.OnLinkItemSelected += SetLastSelectedLinkItem;
linkItem.OnTabPressed += FocusNextItem;
linkItem.OnDeleteKeyDown += Remove;
}
internal void Populate(List <LinkData> list)
{
LinkItem linkItem;
for (int i = list.Count - 1; i >= 0; i--)
{
linkItem = new LinkItem();
linkItem.Controls[0].Text = list[i].Description;
linkItem.Controls[1].Text = list[i].Address;
Add(linkItem);
}
}
private void SwapWithNextFromIndex(int index)
{
LinkItem item = _items[index];
panelList.Controls.Remove(item);
_items.RemoveAt(index);
_items[index].Location = new System.Drawing.Point(_items[index].Location.X, item.Location.Y);
item.Location = new System.Drawing.Point(item.Location.X, item.Location.Y + _items[index].Height);
_items.Insert(index + 1, item);
panelList.Controls.Add(item);
}
public void Add(LinkItem linkItem)
{
scrollbarList.ThumbPosition = 0;
if (_items.Count == 0)
{
SetLinkItemInfo(linkItem, new System.Drawing.Point(0, 0));
}
else
{
SetLinkItemInfo(linkItem, new System.Drawing.Point(0, _items[0].Location.Y));
}
foreach (LinkItem item in _items)
{
item.Location = new System.Drawing.Point(item.Location.X, item.Location.Y + linkItem.Height);
}
_items.Insert(0, linkItem);
if (_undo == false)
{
_undoHistory.Insert(0, new Tuple <string, int, LinkItem>("insert", 0, linkItem));
if (_redo == false)
{
if (_redoHistory.Count != 0)
{
_redoHistory.Clear();
OnDisableRedo?.Invoke();
}
}
}
panelList.Controls.Add(_items[0]);
if (_items.Count == 0)
{
OnDisableUndo?.Invoke();
}
else
{
OnEnableUndo?.Invoke();
}
UpdateScrollBar();
}
public void Remove(LinkItem linkItem)
{
LastSelectedLinkItem = null;
if (linkItem != null)
{
int index = -1;
for (int i = 0; i < _items.Count; i++)
{
if (_items[i] == linkItem)
{
index = i;
break;
}
}
if (index != -1)
{
RemoveAt(index);
}
}
}
public void MoveUp(LinkItem linkItem)
{
if (linkItem != null)
{
int index = _items.IndexOf(linkItem);
if (index > 0)
{
SwapWithNextFromIndex(index - 1);
if (_undo == false)
{
_undoHistory.Add(new Tuple <string, int, LinkItem>("moveUp", index, linkItem));
if (_redo == false)
{
if (_redoHistory.Count != 0)
{
_redoHistory.Clear();
OnDisableRedo?.Invoke();
}
}
}
}
linkItem.Controls[0].Focus();
}
}
public void Insert(int index, LinkItem linkItem)
{
scrollbarList.ThumbPosition = 0;
if (_items.Count == 0)
{
SetLinkItemInfo(linkItem, new System.Drawing.Point(0, 0));
}
else
{
if (_items.Count == index)
{
SetLinkItemInfo(linkItem, new System.Drawing.Point(0, _items[index - 1].Location.Y + _items[index - 1].Height));
}
else
{
SetLinkItemInfo(linkItem, new System.Drawing.Point(0, _items[index].Location.Y));
}
}
for (int i = index; i < _items.Count; i++)
{
_items[i].Location = new System.Drawing.Point(_items[i].Location.X, _items[i].Location.Y + linkItem.Height);
}
panelList.Controls.Add(linkItem);
if (_items.Count == 0)
{
_items.Add(linkItem);
}
else
{
if (_items.Count == index)
{
_items.Add(linkItem);
}
else
{
_items.Insert(index, linkItem);
}
}
if (_undo == false)
{
_undoHistory.Add(new Tuple <string, int, LinkItem>("insert", index, linkItem));
if (_redo == false)
{
if (_redoHistory.Count != 0)
{
_redoHistory.Clear();
OnDisableRedo?.Invoke();
}
}
}
if (_items.Count == 0)
{
OnDisableUndo?.Invoke();
}
else
{
OnEnableUndo?.Invoke();
}
UpdateScrollBar();
}
private void SetLastSelectedLinkItem(LinkItem linkItem)
{
LastSelectedLinkItem = linkItem;
}