From be85a184e2a8a790611cbf482cc28920369d9c4e Mon Sep 17 00:00:00 2001
From: Pete <pete.bankhead@gmail.com>
Date: Wed, 6 Nov 2024 12:10:35 +0000
Subject: [PATCH] Fix threading bug when image type changes

Changes to the image type prompt changes in the UI - which need to be on the right thread.
---
 .../java/qupath/ext/instanseg/ui/InstanSegController.java    | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/main/java/qupath/ext/instanseg/ui/InstanSegController.java b/src/main/java/qupath/ext/instanseg/ui/InstanSegController.java
index 044586e..5e39c9c 100644
--- a/src/main/java/qupath/ext/instanseg/ui/InstanSegController.java
+++ b/src/main/java/qupath/ext/instanseg/ui/InstanSegController.java
@@ -1,5 +1,6 @@
 package qupath.ext.instanseg.ui;
 
+import javafx.application.Platform;
 import javafx.beans.binding.Bindings;
 import javafx.beans.binding.BooleanBinding;
 import javafx.beans.binding.ObjectBinding;
@@ -341,6 +342,10 @@ private void updateInputChannels(ImageData<BufferedImage> imageData) {
         if (imageData == null) {
             return;
         }
+        if (!Platform.isFxApplicationThread()) {
+            Platform.runLater(() -> updateInputChannels(imageData));
+            return;
+        }
         // Store the checks without changing the current value
         inputChannelCache.snapshotChecks();
         // Update the items