forked from amazingfate/loongoffice
Regression to master. In long term it would be better to define ChartWindow as an OpenGL window and not creating a new window inside the chart window, becasue otherwise all events which was handled well by the chart window will be broken (catched by the OpenGL window so no effect on ChartWindow (defining the behavior of charts in general) or catched by the ChartWindow and so no effect on the OpenGLWindow (like invalidating in this case). Change-Id: I234f469f70914e01f030c8edae9cb5aacea112bf