Measure waveform capture has missing area due to palette redraw

[quozl]

There is a small rectangle of screen that is missing from the waveform capture. This is where the palette for the button was.

Measure-30, XO-1 os301, XO-1.5 os206.

[quozl]

whistle capture on XO-1 showing missing rectangle below capture button

[walter]

From the attached picture, it seems that the toolbar is not refreshing properly from the tooltip of the capture button. I am guessing it is a problem with either the Sugar toolbar or gdk. It doesn't seem to be a problem with Sugar 0.88 toolbars and it doesn't seem to show up when running Sugar 0.84 in the emulator. Not sure I can do anything about this.

[quozl]

It will eventually happen with Sugar 0.88 given sufficiently slow hardware, and is not a problem with the toolbar implementation, but rather due to taking a screenshot by reading the root window without first ensuring the display is quiescent. The attached fix has been tested on XO-1 and XO-1.5 and fixes the symptom.

[walter]

Sorry. I had misread the original ticket. I thought it was a problem with the display, which I couldn't reproduce, not the screenshot. I'll look at your patch. Thanks.

[quozl]

Tested Measure git hash 74d81ce, the symptom is solved.

[walter]

fixed in v31

[quozl]

Tested Measure-31, is fixed.