From 8124f0bc1893e0997989913044665fa1c5cf79d7 Mon Sep 17 00:00:00 2001
From: Szabolcs David <davidsz@inf.u-szeged.hu>
Date: Thu, 25 Oct 2018 16:36:12 +0200
Subject: Move printing operation to a new thread
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Printing operations were blocking the UI thread, so applications
were irresponsive when printing in large size or high resolution.
Introduce a new worker for the painting logic and use shared pointers
to carry the data around and avoid copying PDF data between threads.

Task-number: QTBUG-68561
Change-Id: I30633380b75acd14f1a1df87985c99540168a9f1
Reviewed-by: Michael Brüning <michael.bruning@qt.io>
---
 src/webenginewidgets/webenginewidgets.pro | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/webenginewidgets/webenginewidgets.pro')

diff --git a/src/webenginewidgets/webenginewidgets.pro b/src/webenginewidgets/webenginewidgets.pro
index e61575d3a..4669c2bce 100644
--- a/src/webenginewidgets/webenginewidgets.pro
+++ b/src/webenginewidgets/webenginewidgets.pro
@@ -49,6 +49,9 @@ HEADERS = \
 
 qtConfig(webengine-printing-and-pdf) {
     QT += printsupport
+
+    SOURCES += printer_worker.cpp
+    HEADERS += printer_worker.h
 }
 
 load(qt_module)
-- 
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