On 21 Dec 2007, at 19:16, Jonathan del Strother wrote:
On Dec 21, 2007 1:07 PM, Jonathan del Strother
<[EMAIL PROTECTED]> wrote:
Heya,
I have a patch that generates an image, using a
QCPlugInOutputImageProvider object. I'd like to specify (via an
input
port) the size of the image in quartz dimensions. How can I then
calculate the imageBounds method for the QCPlugInOutputImageProvider?
It requires pixel dimensions, but as far as I can tell, there's no
way
of getting the viewport size.
It's clearly possible at some level - for instance, Image With String
allows you to specify the image dimensions in quartz coords - but I
can't seem to find any public method of figuring it out.
Just a quick followup, for what it's worth :
You *can* get the viewport dimensions in the plugin via [[[self
patch] renderingContext] frame]. Which actually seems to work fine,
but it is going though 3 private methods with two private classes,
which seems a tad fragile..
you can just use the "tool -> rendering destination dimensions" built
in patch, this gives
you both qc and pixel dimensions and then feed that into the custom
patch
roger
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