protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (e.Button == MouseButtons.Right)
{
return;
}
ToolBoxItem item = GetToolboxItemByPoint(e.Location);
if (item != null)
{
if (!(item is ToolBoxCategory))
{
Console.WriteLine(DateTime.Now.Second.ToString() + ":" + e.Button.ToString());
if (e.Button == MouseButtons.Left)
{
if (null != ItemDragStart)
{
ItemDragStart(this, item);
}
return;
}
_mouseHoverItem = item;
Invalidate();
}
else
{
_mouseHoverItem = null;
Invalidate();
}
}
}
protected override void OnMouseDown(MouseEventArgs e)
{
base.OnMouseDown(e);
ToolBoxItem item = GetToolboxItemByPoint(e.Location);
if (item != null)
{
if (item is ToolBoxCategory)
{
ToolBoxCategory tbc = item as ToolBoxCategory;
tbc.IsOpen = !tbc.IsOpen;
RefreshScrollBar();
Invalidate();
}
else
{
_selectedItem = item;
if (null != SelectedItemChanged)
{
SelectedItemChanged(this, _selectedItem);
}
if (2 == e.Clicks && null != ItemDoubleClicked)
{
ItemDoubleClicked(this, _selectedItem);
}
Invalidate();
}
}
Focus();
}
private ToolBoxItem GetToolboxItemByPoint(Point pi)
{
ToolBoxItem result = null;
Int32 top = _itemSpace;
if (vScrollBar1.Visible)
{
top -= vScrollBar1.Value;
}
foreach (ToolBoxCategory tbc in _categories)
{
Rectangle rectCategory = new Rectangle(0, top, this.Width, _categoryHeight);
if (rectCategory.Contains(pi))
{
result = tbc;
break;
}
else
{
if (tbc.IsOpen)
{
top += _categoryHeight + _itemSpace;
Boolean find = false;
foreach (ToolBoxItem tbi in tbc.Items)
{
Rectangle rectItem = new Rectangle(0, top, this.Width, _itemHeight);
if (rectItem.Contains(pi))
{
tbi.Parent = tbc;
result = tbi;
find = true;
break;
}
else
{
top += _itemHeight + _itemSpace;
}
}
if (find)
{
break;
}
}
else
{
top += _categoryHeight + _itemSpace;
}
}
}
return(result);
}
public void ResetSelection()
{
_selectedItem = null;
Invalidate();
}
protected override void OnMouseLeave(EventArgs e)
{
base.OnMouseLeave(e);
_mouseHoverItem = null;
Invalidate();
}