From 1d71f82033f1ec3ad51195cfa64c59fcf0cd6ccc Mon Sep 17 00:00:00 2001
From: Edward <edward88>
Date: Tue, 8 Nov 2022 14:28:44 +0100
Subject: Texture Paint: sync adding a new texture slot to the Image Editor

When changing the texture paint slot index or activating a Texture Node, the texture displayed in the Image Editor changes accordingly.
This patch syncs the Image Editor when a new texture paint slot was added, which currently is not the case.

Also deduplicates some code.
---
 source/blender/editors/space_image/image_edit.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'source/blender/editors/space_image/image_edit.c')

diff --git a/source/blender/editors/space_image/image_edit.c b/source/blender/editors/space_image/image_edit.c
index 0122e509c3b..68b1a9e4466 100644
--- a/source/blender/editors/space_image/image_edit.c
+++ b/source/blender/editors/space_image/image_edit.c
@@ -67,6 +67,30 @@ void ED_space_image_set(Main *bmain, SpaceImage *sima, Image *ima, bool automati
   WM_main_add_notifier(NC_SPACE | ND_SPACE_IMAGE, NULL);
 }
 
+void ED_space_image_sync(struct Main *bmain, struct Image *image, bool ignore_render_viewer)
+{
+  wmWindowManager *wm = (wmWindowManager *)bmain->wm.first;
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
+    const bScreen *screen = WM_window_get_active_screen(win);
+    LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+      LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
+        if (sl->spacetype != SPACE_IMAGE) {
+          continue;
+        }
+        SpaceImage *sima = (SpaceImage *)sl;
+        if (sima->pin) {
+          continue;
+        }
+        if (ignore_render_viewer && sima->image &&
+            ELEM(sima->image->type, IMA_TYPE_R_RESULT, IMA_TYPE_COMPOSITE)) {
+          continue;
+        }
+        ED_space_image_set(bmain, sima, image, true);
+      }
+    }
+  }
+}
+
 void ED_space_image_auto_set(const bContext *C, SpaceImage *sima)
 {
   if (sima->mode != SI_MODE_UV || sima->pin) {
-- 
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