From c07e5fa091ddb6c17d3285ca26b51076521bddb0 Mon Sep 17 00:00:00 2001
From: Klaus Rettinghaus <klaus.rettinghaus@gmail.com>
Date: Sat, 6 Jan 2024 22:39:40 +0100
Subject: [PATCH] allow fTrem in beam

---
 src/beam.cpp      | 4 ++++
 src/iomei.cpp     | 3 +++
 src/view_beam.cpp | 8 ++++++++
 3 files changed, 15 insertions(+)

diff --git a/src/beam.cpp b/src/beam.cpp
index 335d7c536fb..775ccb9f55a 100644
--- a/src/beam.cpp
+++ b/src/beam.cpp
@@ -19,6 +19,7 @@
 #include "btrem.h"
 #include "doc.h"
 #include "editorial.h"
+#include "ftrem.h"
 #include "functor.h"
 #include "gracegrp.h"
 #include "layer.h"
@@ -1634,6 +1635,9 @@ bool Beam::IsSupportedChild(Object *child)
     else if (child->Is(CLEF)) {
         assert(dynamic_cast<Clef *>(child));
     }
+    else if (child->Is(FTREM)) {
+        assert(dynamic_cast<FTrem *>(child));
+    }
     else if (child->Is(GRACEGRP)) {
         assert(dynamic_cast<GraceGrp *>(child));
     }
diff --git a/src/iomei.cpp b/src/iomei.cpp
index 6ff5920f6c4..f349669a21e 100644
--- a/src/iomei.cpp
+++ b/src/iomei.cpp
@@ -3533,6 +3533,9 @@ bool MEIInput::IsAllowed(std::string element, Object *filterParent)
         else if (element == "clef") {
             return true;
         }
+        else if (element == "fTrem") {
+            return true;
+        }
         else if (element == "graceGrp") {
             return true;
         }
diff --git a/src/view_beam.cpp b/src/view_beam.cpp
index 1be6bdbe31c..4fbaf6582f0 100644
--- a/src/view_beam.cpp
+++ b/src/view_beam.cpp
@@ -49,6 +49,14 @@ void View::DrawBeam(DeviceContext *dc, LayerElement *element, Layer *layer, Staf
         return;
     }
 
+    if (beam->GetFirst(FTREM)) {
+        // If there is a fTrem we ignore the beam and just handle its children
+        dc->StartGraphic(element, "", element->GetID());
+        this->DrawLayerChildren(dc, beam, layer, staff, measure);
+        dc->EndGraphic(element, this);
+        return;
+    }
+
     beam->m_beamSegment.InitCoordRefs(beam->GetElementCoords());
 
     data_BEAMPLACE initialPlace = beam->GetPlace();