[Etoys] Sketch's graphic assignment?
scott.wallace at squeakland.org
Tue Jun 12 05:43:43 EDT 2007
This is now fixed by update 1361viewerConflicts-sw, which also fixes
five or six related glitches which all derived from similar
collisions of slot-definitions for Viewers, as specified in class-
side #addiltionsToViewerCategoryxxx methods.
The formerly conflicting slot definitions that are cleaned up by this
cursor -- conflicts among TextMorph, NCLabelMorph, PasteUpMorph,
graphic -- conflicts among SketchMorph, VideoMorph, PasteUpMorph
Thanks again for the bug report, Dan. It's good to get these
glitches sorted out.
On Jun 11, 2007, at 12:03 PM, Scott Wallace wrote:
> I tracked this down and discovered that the problem arrived with
> update 1233VideoForSq-fixes2-dgd.
> The cause is that update 1233 provides an
> #additionsToViewerCategories method containing among other things
> an override for the #graphic slot for VideoMorph, which
> (appropriately) declares the #graphic slot to be read-only.
> However -- and I believe we encountered this once before in a
> different context in recent months -- the MethodInterfaces in the
> etoy vocabulary are not bound to a particular class but rather only
> to a selector; thus, the new declaration for the #graphic slot in
> Diego' fileout clobbered the #graphic entry previously present, in
> which #graphic was a read/write slot, and replaced it with the
> entry provided for VideoMorph which declares #graphic to be read-
> So, in short, we have a problem whenever the
> #additionsToViewerCategories declarations in two different classes
> declare the same slot-name with conflicting details.
> Let's discuss what to do about this during our conference call this
> -- Scott
> On Jun 11, 2007, at 8:54 AM, Heywood, Daniel Feaster wrote:
>> Hi Scott,
>> I just recently noticed that one is not able to make an assignment
>> to a Sketch's graphic in the OLPC image; the base graphic is
>> assignable but the graphic is not. In the Plugin image a Sketch
>> does have the capability to make an assignment to its graphic--not
>> sure if this is a bug or another matter of a preference setting?
>> --Dan Heywood
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