pixel distance of gaps in scaleWidget

[KosyakOFF]

Hi every one.

My project - is multiplot widget. I choose to place them in QScrollview and separate yLeft sclale of plots to another QScrollview, which is placed left form main scrollview (it is done to cover cases then we move horizontal scrollbar and left scales will not be visible).

Right now I'm setting scaldivs and scaledraws of scalewidget from plot's scales. Sizes of separate scaleWidgets and corresponding plot's leftscale are match. But I don't know sizes of blank spaces between which are above leftscale and below. On picture below this gaps are inside of black sqares.



I don't is it a good and simple method to work with many plots. May be expert users of Qwt can suggest me better method.

Very big thanks for your answers!