[QGIS-trac] [Quantum GIS] #2461: Add Incremental rendering of features when using Symbology V2

[Quantum GIS]

#2461: Add Incremental rendering of features when using Symbology V2
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   Reporter:  jpalmer                           |              Owner:  nobody       
       Type:  patch                             |             Status:  new          
   Priority:  major: does not work as expected  |          Milestone:  Version 1.5.0
  Component:  MapCanvas                         |            Version:  HEAD         
   Keywords:                                    |   Platform_version:               
   Platform:  All                               |           Must_fix:  Yes          
Status_info:  0                                 |  
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 This patch implements version 2 incremental rendering. Note that I have
 only implemented processing of key events when symbol layer rendering is
 enabled, because there is no clear way to decide when X features have been
 drawn.

 Fixes ticket #2409.

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Ticket URL: <https://trac.osgeo.org/qgis/ticket/2461>
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