private void _setTool(Tool tool)
{
Debug.Assert(tool != null, "Tool cannot be null.");
if (_activeTool == _nextTool)
{
return;
}
_activeTool.Disable();
_activeTool = tool;
_activeTool.Enable();
ToolChanged(this, tool);
}
private void InitTools()
{
_toolDefault = new ToolDefault(this);
_activeTool = _toolDefault;
_nextTool = _activeTool;
_activeTool.Enable();
}