public void Remove(ToolBase uiElement)
{
ToolInstance instance = null;
if (this.toolInstances.TryGetValue(uiElement.Key, out instance))
{
instance.DecrementCount();
if (instance.Count == 0)
{
this.toolInstances.Remove(uiElement.Key);
}
}
}
public ToolBase Add(ToolBase uiElement, int newToolIndex)
{
ToolInstance instance;
if (this.toolInstances.TryGetValue(uiElement.Key, out instance))
{
instance.IncrementCount();
}
else
{
ToolBase tool;
if (this.Manager.Tools.Exists(uiElement.Key) == false)
{
// create a root tool instance
this.Manager.Tools.Add(uiElement);
}
// see if there is an instance of the tool in the collection
int index = this.Tools.IndexOf(uiElement.Key);
if (index < 0)
{
// now create an instance of the tool
index = newToolIndex;
this.Tools.Insert(index, uiElement);
}
// get the tool
tool = this.Tools[index];
// then create a toolinstance to manage the count
instance = new ToolInstance(tool);
this.toolInstances.Add(uiElement.Key, instance);
}
return(instance.Tool);
}
