[squeak-dev] [BUG] MouseWheel click and drag SketchMorph
karlramberg at gmail.com
Fri Mar 1 10:33:54 UTC 2019
On Fri, Mar 1, 2019 at 6:54 AM K K Subbu <kksubbu.ml at gmail.com> wrote:
> On 28/02/19 7:44 PM, karl ramberg wrote:
> > Hi,
> > When I click and drag a SketchMorph with the mouse wheel, the
> > SketchMorph jump to the top left corner of the screen, and then follows
> > the mouse.
> > I have the same issue on both Windows and Linux
> I am unable to reproduce this on Squeak 5.2 #18231 (64b Ubuntu 16.04).
> Could you please list the precise sequence?
> BTW, I noticed that creating sketches from lasso or rubberband no longer
> works. Only rectangle snip works :-(.
> World-Menu -> new morph -> grab rectangle from screen
> draw rectangle in the balloon - drag a sketch.
> World-Menu -> new morph -> grab lasso from screen
> draw lasso in the balloon - no sketch
> ditto for grab rubber band from screen.
It's a bug in BitBlt in 32 bit screen depth. It works when screen is set to
Combination rule Form erase1bitShape returns a transparent form in 32 bit
> Regards .. Subbu
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