14.17: the Layers panel grays only for what lasts

src/Document/EditorSession.cpp

@@ -263,6 +263,13 @@ void EditorSession::endEdit()
     notify();
 }
 
+bool EditorSession::layersLookEditable() const
+{
+    return !m_selectionAmountOperation && !m_colorRange && !m_textDraft && m_document && !showsBusy() && !m_isImporting && !m_showsNewDocument
+        && !m_showsImporter && !m_renamingLayerID && !(m_transformEdit && m_transformEdit->persistent) && !m_cropRect && !m_gradientEdit && !m_hueSaturation
+        && !m_levels && !m_filterEdit && !m_adjustmentEditingID;
+}
+
 bool EditorSession::canEditLayers() const
 {
     return !m_selectionAmountOperation && !m_colorRange && !m_textDraft && m_document && !m_brushStroke && !m_warpStroke && !m_isProjectBusy && !m_isImporting

src/Document/EditorSession.h

@@ -217,6 +217,8 @@ public:
     void beginEdit(const QString &name);
     void endEdit();
     bool canEditLayers() const;
+    // The panel grays for what lasts, not for a stroke.
+    bool layersLookEditable() const;
     void addBlankLayer();
     void deleteLayer(QUuid id);
     void deleteActiveLayer();