[cairo] Clipping and on-demand redraw

Enrico Weigelt, metux IT consult enrico.weigelt at gr13.net
Sat Jan 9 20:07:09 PST 2016

On 09.01.2016 23:37, Lawrence D'Oliveiro wrote:
> On Sat, 9 Jan 2016 23:11:44 +0100, Enrico Weigelt, metux IT consult
> wrote:
>> But I dont know yet, how to do that also w/ rotation.
> You can convert the bounding rectangle of the widget to a clip path, and
> do path intersection/subtraction etc.
> Or you could simplify it, and compute a bigger axis-aligned bounding
> rectangle for a rotated widget. Then you only need to do operations
> on axis-aligned rectangles.

hmm, could you perhaps give me some example ?


Enrico Weigelt,
metux IT consulting

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