On Sep 17, 2009, at 2:59 AM, Annick Fron wrote:
> Using cairo is not straightforward since it is not an object
> framework.
> For instance if you translate a graphicsContext and then open a
> cairoContext on it using:
> newCairoContextWhile: the new context is not translated (inherits no
> state).
Interesting.
It *should* reflect the same translation and clip. The code found in
ScreenGraphicsContext>>newCairoContextWhile: reads
cr translate: self translation.
self clippingRectangleOrNil
ifNotNil:
[:rect |
cr
rectangle: rect;
clip]
If it's not working, the following snippet shouldn't show the correct
thing:
win := ApplicationWindow new.
win component: CompositePart new.
vb := VisualBlock block:
[:gc :box |
gc newCairoContextWhile:
[:cr |
cr
source: ColorValue royalBlue;
paint]].
win component add: vb in: (100 @ 200 extent: 50 @ 80).
win openWithExtent: 300 @ 300
Does it show correctly for you? Is there a more involved case you have
were translation appears to not work?
--
Travis Griggs
Objologist
Time and Countertops. They both get used up way too fast.
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