Rewrite the getBaseViewLayer method

ivmartel · Oct 2, 2024 · d5ddabf · d5ddabf
1 parent 9d49bf4
commit d5ddabf
Showing 1 changed file with 13 additions and 4 deletions.
diff --git a/src/gui/layerGroup.js b/src/gui/layerGroup.js
@@ -441,11 +441,20 @@ export class LayerGroup {
    * @returns {ViewLayer|undefined} The layer.
    */
   getBaseViewLayer() {
-    let layer;
-    if (this.#layers[0] instanceof ViewLayer) {
-      layer = this.#layers[0];
+    // use first layer as base for calculating position and
+    // line sizes
+    let baseLayer;
+    for (const layer of this.#layers) {
+      if (layer instanceof ViewLayer) {
+        baseLayer = layer;
+        break;
+      }
     }
-    return layer;
+    if (typeof baseLayer === 'undefined') {
+      logger.warn('No layer found');
+      return;
+    }
+    return baseLayer;
   }
 
   /**