[squeak-dev] What is the task of NullEncoder?
Das.Linux at gmx.de
Sun Oct 1 10:57:03 UTC 2017
> On 01.10.2017, at 11:38, Marcel Weiher <marcel.weiher at gmail.com> wrote:
>> On Sep 29, 2017, at 19:09 , Nicolas Cellier <nicolas.cellier.aka.nice at gmail.com> wrote:
>> The canvas other than PostscriptCanvas don't use the target, they are sinks.
> That’s only technically true, and really an oversight. All canvases write their output somewhere, be it a bitmap, native display surface or other ‘DisplayMedium'. A canvas is a filter for converting morphs to this target ‘DisplayMedium’.
> And having filter-canvases would be really cool :-)
You mean like ColorMappingCanvas, AlphaBlendingCanvas, and ShadowDrawingCanvas?
(Which, by your account, should not have an own myCanvas but rather reuse target…)?
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