From c13d8a3e8a23dcedfcd3d7cea800e7c29aa47e80 Mon Sep 17 00:00:00 2001
From: tassaron
Date: Mon, 2 May 2022 18:27:26 -0400
Subject: log QThread IDs

---
 src/gui/preview_thread.py | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/gui/preview_thread.py')

diff --git a/src/gui/preview_thread.py b/src/gui/preview_thread.py
index 137864b..8ec5d28 100644
--- a/src/gui/preview_thread.py
+++ b/src/gui/preview_thread.py
@@ -38,6 +38,7 @@ class Worker(QtCore.QObject):
           "components": components,
         }
         self.queue.put(dic)
+        log.debug('Preview thread id: {}'.format(int(QtCore.QThread.currentThreadId())))
 
     @pyqtSlot()
     def process(self):
-- 
cgit v1.2.3


From fdbaf844230b01ff96f20863b762cc83fad34c38 Mon Sep 17 00:00:00 2001
From: tassaron
Date: Mon, 2 May 2022 19:37:02 -0400
Subject: add useful comment about why this reference exists

---
 src/gui/preview_thread.py | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/gui/preview_thread.py')

diff --git a/src/gui/preview_thread.py b/src/gui/preview_thread.py
index 8ec5d28..3943a5c 100644
--- a/src/gui/preview_thread.py
+++ b/src/gui/preview_thread.py
@@ -80,6 +80,8 @@ class Worker(QtCore.QObject):
                 except RuntimeError as e:
                     log.error(str(e))
             else:
+                # We must store a reference to this QImage
+                # or else Qt will garbage-collect it on the C++ side
                 self.frame = ImageQt(frame)
                 self.imageCreated.emit(QtGui.QImage(self.frame))
 
-- 
cgit v1.2.3