Am 23.04.2016 um 11:47 schrieb Matthias Kuhn: > Hi Jörg, > > On 22/04/16 18:24, Jörg Habenicht wrote: >> Hi Matthias, >> [snip]
>> It seems to me I have to extract the code inside the loop (in >> QgsMapRenderer::render(), "while ( li.hasPrevious() )") into a separate >> method and call QtConcurrent on that. > You shouldn't have to deal directly with QtConcurrent, this code is > alredy present. > > https://qgis.org/api/classQgsMapRendererJob.html#details > > Have a look at QgsMapCanvas::refreshMap() which sets up a job and > connects the signal finished() to a local slot and continues execution. > On the server instead you probably want to use a QFutureWatcher with > waitForFinished() to wait for the painting job (with its threads) finish > before responding with the freshly painted image. Oh yes, good hint. thank you > > Matthias cu Jörg -- mWerk GmbH Dipl.-Ing. Jörg Habenicht Landwehrstr. 76 30519 Hannover (T) +49 511 9999 8033 (F) +49 511 9999 8041 (E) [email protected] Amtsgericht Hannover HRB 206522 Geschäftsführer Reiner Brachvogel Dennis Kornehl _______________________________________________ Qgis-developer mailing list [email protected] List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer
