From f9bee8757031e15296f459b36fe9f57c45c0ef80 Mon Sep 17 00:00:00 2001
From: Jabiertxof <jabier.arraiza@marker.es>
Date: Wed, 3 Feb 2021 20:13:54 +0100
Subject: [PATCH] Rendering in other thread

This tiny MR is just to check if rendering on other thread than main improve
speed in Mac as user Brenden Soares  tell in issue 1614

https://gitlab.com/inkscape/inkscape/-/issues/1614#note_415422794
---
 src/ui/widget/canvas.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/ui/widget/canvas.cpp b/src/ui/widget/canvas.cpp
index a9acea927e..1e5d7c4e2e 100644
--- a/src/ui/widget/canvas.cpp
+++ b/src/ui/widget/canvas.cpp
@@ -10,7 +10,7 @@
  *
  * Released under GNU GPL v2+, read the file 'COPYING' for more information.
  */
-
+#include <thread>
 #include <iostream>
 
 #include <glibmm/i18n.h>
@@ -964,10 +964,10 @@ Canvas::on_idle()
     if (!_drawing) {
         return false; // Disconnect
     }
-
-    bool done = do_update();
+    bool done = false;
+    std::thread t([&] {done = Inkscape::UI::Widget::Canvas::do_update();});
+    t.join();
     int n_rects = _clean_region->get_num_rectangles();
-
     // If we've drawn everything then we should have just one clean rectangle, covering the entire canvas.
     if (n_rects == 0) {
         std::cerr << "Canvas::on_idle: clean region is empty!" << std::endl;
-- 
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