[Qgis-developer] Patch Proposal #1974 Render caching

[Tim Sutton]

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Hi Devs

I've been working a little on implementing some render caching to make
QGIS feel more responsive and avoid unnecessary re-rendering of layers
when nothing has really changed.

I've finished writing a simple caching mechanism and would like to ask
you to a) test and b) indicate if you are happy for this to go into trunk.

The patch is here

https://trac.osgeo.org/qgis/attachment/ticket/1974/qgis_rendercachepatch_v7_23Oct2009.diff

Note that caching is disabled by default - you need to enable it in the
Options dialog, rendering tab.


Regards,

- --

Tim Sutton - QGIS Project Steering Committee Member (Release  Manager)
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