[okular] [Bug 412638] Inconsistent mechanism to draw annotations

[Simone Gaiarin]

https://bugs.kde.org/show_bug.cgi?id=412638

--- Comment #2 from Simone Gaiarin <simgunz at gmail.com> ---
> How do you imagine "click and hold" for polyline?

Actually this is a good question.

> I think polyline should be "click and click and click and right-click to
> finisch". (Btw whats polyline? I can find only polygon...)

polyline = polygon, it is just how the internal engine name.

Probably what you propose is the best. It is how Krita does and how the
free-select-tool works in gimp.
(an alternative is to have "click and hold" only for the first segment (this is
how kolourpaint does), but I prefer what you propose)
So basically it is the current behavior, with the difference that now right
click cancels the drawing instead of completing a non-closed line.

> The other annotations (straight line, shape) should allow both "click and
> click" and "click and drag".

This would be the optimum, but I see that neither Krita nor Kolourpaint allow
"click and click" (probably makes the implementation trickier). For me having
just "click and drag" is enough. It just needs to be changed for the straight
line tool.


Summary from my point of view:
- Change behavior of straight line tool to "click and drag"
- Change right click behavior of polygon from "cancel adding annotation" to
"complete curve even if not closed"

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