/// <summary>
/// Handles the key pressed by the user
/// </summary>
/// <param name="e"></param>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
var shouldRefresh = false;
// cache list of tools (it can change during execute of OnKeyDown)
var toolsList = tools.ToList();
foreach (var tool in toolsList)
{
if (e.KeyCode == Keys.Escape)
{
// if the user presses the escape key first cancel an operation in progress
if (tool.IsBusy)
{
tool.Cancel();
shouldRefresh = true;
}
continue;
}
tool.OnKeyDown(e);
}
if ((!toolsList.Any(t => t.IsBusy)) && (e.KeyCode == Keys.Escape) && (!SelectTool.IsActive))
{
// if the user presses the escape key and there was no operation in progress switch to select.
ActivateTool(SelectTool);
shouldRefresh = true;
}
if (shouldRefresh)
{
Refresh();
}
}