kicad-developers team mailing list archive

[Nick Østergaard <oe.nick@xxxxxxxxx>]

Maybe we should just ensure that it works properly in GAL on OS X and
don't care for the legacy for this exact issue?

2015-07-22 7:47 GMT+02:00 Bernhard Stegmaier <stegmaier@xxxxxxxxxxxxx>:
>
> On 22 Jul 2015, at 05:10, Garth Corral <gcorral@xxxxxxxxx> wrote:
>
>
> On Jul 21, 2015, at 1:30 PM, Wayne Stambaugh <stambaughw@xxxxxxxxx> wrote:
>
> On 7/21/2015 4:19 PM, Bernhard Stegmaier wrote:
>
> OK, got it… the crosshair is only shown in some modes (didn’t really use
> GAL up to now).
> Yes, works also for me in GAL mode and not in default canvas.
>
>
> I'm not sure why this doesn't work in the default canvas.  Someone
> should probably take a look at it.  I'm guessing it has something to do
> with the overlays used on OSX.
>
>
> Um, perhaps it has something to do with this:
>
> #ifdef __WXMAC__
>     m_defaultCursor = m_currentCursor = wxCURSOR_CROSS;
>     m_showCrossHair = false;
> #else
>     m_defaultCursor = m_currentCursor = wxCURSOR_ARROW;
>     m_showCrossHair = true;
> #endif
>
> I’m assuming that this was done due to overlay issues as Wayne suggests.
>
>
> You don’t have a XOR-drawing mode on OS X with wxWidgets, so the usual
> redraw-to-delete doesn’t work here.
> If you want to delete something you have to completely repaint the canvas or
> revert the the last state saved in the overlay (which is faster than a
> complete redraw but still not as fast as just drawing two lines).
>
> If I haven’t tried yet, but if you just remove that ifdef I guess deletion
> of the crosshair won’t work at all (you would just fill up the canvas with
> crosshairs). Or, it could be quite slow (there is already now some
> noticeable lag when quickly moving around objects).
> However, I can give it a try on the weekend...
>
> So, the real issue is not to have a XOR draw mode on OS X, which is quite
> the base of every drawing stuff in the default canvas of pcbnew and
> eeschema. Using this overlay hack is just a workaround with many problems
> (especially causing all those redraw issues in eeschema)...
>
>
> Regards,
> Bernhard
>
>
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