private void ToolButtonClick(ToolEntry toolEntry)
        {
            if (string.IsNullOrEmpty(toolEntry.cmd))
            {
                //TODO TabIndex => To Enum
                OpenSettings(2);
                return;
            }

            if (CurrentLogWindow != null)
            {
                ILogLine     line = CurrentLogWindow.GetCurrentLine();
                ILogFileInfo info = CurrentLogWindow.GetCurrentFileInfo();
                if (line != null && info != null)
                {
                    ArgParser parser  = new ArgParser(toolEntry.args);
                    string    argLine = parser.BuildArgs(line, CurrentLogWindow.GetRealLineNum() + 1, info, this);
                    if (argLine != null)
                    {
                        StartTool(toolEntry.cmd, argLine, toolEntry.sysout, toolEntry.columnizerName,
                                  toolEntry.workingDir);
                    }
                }
            }
        }