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If composer map is set to use project CRS, update cached render

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when project CRS changes

This should prevent one of the most common confusions with
composer maps - users inserting multiple maps, with apparently
different CRS due to outdated cache renders, and getting confused
because outputs from composer look different to the composer view....
This commit is contained in:
Nyall Dawson 2017-05-08 18:41:44 +10:00
parent 5e3b903955
commit c5566e72c0
1 changed files with 10 additions and 0 deletions
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10
src/core/composer/qgscomposermap.cpp
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@ -1142,6 +1142,16 @@ void QgsComposerMap::connectUpdateSlot()
// redraws the map AFTER layers are removed
connect( project, &QgsProject::layersRemoved, this, &QgsComposerMap::renderModeUpdateCachedImage );
connect( project, &QgsProject::legendLayersAdded, this, &QgsComposerMap::renderModeUpdateCachedImage );
connect( project, &QgsProject::crsChanged, this, [ = ]
{
if ( !mCrs.isValid() )
{
//using project CRS, which just changed....
invalidateCache();
}
} );
}
connect( mComposition, &QgsComposition::refreshItemsTriggered, this, &QgsComposerMap::invalidateCache );
}