#72 Redraw logic bug

[Reiner H. W. Friedel]

The convention was hit draw once and only those panels that have changed get redrawn, hit draw twice and it forces a redraw - and there's a right-click option next to a panel that can "force redraw this panel".

The logic is borken - it seems to by somewhat unpredictable but often always redraws everything - and then it "overdraws" without erasing things first.

We may want to think about having a "draw action" analogous to the Slice Action, Mous Action functionality - that sets up how the draw button behaves. Possible options could be

redraw changed panels only
redraw all panels
redraw changed panels, clear data cashes (for the changed panels only)
redraw all panels, clear all data cashes

The double draw click logic would then go away.

[Jeremy Faden]

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A nice way to look for this bug would be to set up four papco_text panels with the template "%{timestamp}" However, things appear to work nicely with this test. I wonder if it's associated with the panel type.

In the panel list, I'll add an asterisk (*) next to the names of the panels that have been modified. This would be nice feedback anyway...

[Jeremy Faden]

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papco_panellist.pro now marks with an asterisk the panels that will be redrawn by calling papco_check_plotInfos.