From d8bbb3c804e94a40f9cf3aeb911e1f218510f287 Mon Sep 17 00:00:00 2001
From: hlorus <64740362+hlorus@users.noreply.github.com>
Date: Sun, 23 Jun 2024 12:06:25 +0200
Subject: [PATCH] Measure: Resolve App::Link elements

---
 src/App/MeasureManager.cpp          | 6 ++++++
 src/Mod/Measure/App/MeasureBase.h   | 6 ++++++
 src/Mod/Measure/Gui/TaskMeasure.cpp | 9 ++++++++-
 3 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/src/App/MeasureManager.cpp b/src/App/MeasureManager.cpp
index a063a177cb..825cbc63a9 100644
--- a/src/App/MeasureManager.cpp
+++ b/src/App/MeasureManager.cpp
@@ -24,6 +24,7 @@
 #include <Base/Interpreter.h>
 #include <Base/VectorPy.h>
 #include <App/Document.h>
+#include <App/Link.h>
 
 #include "MeasureManager.h"
 
@@ -65,7 +66,12 @@ namespace App {
     MeasureHandler MeasureManager::getMeasureHandler(const App::MeasureSelectionItem& selectionItem) {
         auto objT = selectionItem.object;
 
+        // Resolve App::Link
         App::DocumentObject* sub = objT.getSubObject();
+        if (sub->isDerivedFrom<App::Link>()) {
+            auto link = static_cast<App::Link*>(sub);
+            sub = link->getLinkedObject(true);
+        }
 
         const char* className = sub->getTypeId().getName();
         std::string mod = Base::Type::getModuleName(className);
diff --git a/src/Mod/Measure/App/MeasureBase.h b/src/Mod/Measure/App/MeasureBase.h
index 74dba3cbc7..75fdc61ffc 100644
--- a/src/Mod/Measure/App/MeasureBase.h
+++ b/src/Mod/Measure/App/MeasureBase.h
@@ -34,6 +34,7 @@
 #include <App/PropertyStandard.h>
 #include <App/PropertyUnits.h>
 #include <App/FeaturePython.h>
+#include <App/Link.h>
 #include <Base/Quantity.h>
 #include <Base/Placement.h>
 #include <Base/Interpreter.h>
@@ -108,7 +109,12 @@ public:
 
     static Part::MeasureInfoPtr getMeasureInfo(App::SubObjectT& subObjT) {
 
+        // Resolve App::Link
         App::DocumentObject* sub = subObjT.getSubObject();
+        if (sub->isDerivedFrom<App::Link>()) {
+            auto link = static_cast<App::Link*>(sub);
+            sub = link->getLinkedObject(true);
+        }
 
         // Get the Geometry handler based on the module
         const char* className = sub->getTypeId().getName();
diff --git a/src/Mod/Measure/Gui/TaskMeasure.cpp b/src/Mod/Measure/Gui/TaskMeasure.cpp
index 04aeb23694..e5968c33d5 100644
--- a/src/Mod/Measure/Gui/TaskMeasure.cpp
+++ b/src/Mod/Measure/Gui/TaskMeasure.cpp
@@ -32,6 +32,7 @@
 
 #include <App/Document.h>
 #include <App/DocumentObjectGroup.h>
+#include <App/Link.h>
 #include <Gui/MainWindow.h>
 #include <Gui/Application.h>
 #include <Gui/BitmapFactory.h>
@@ -156,8 +157,14 @@ void TaskMeasure::update() {
     for(auto sel : Gui::Selection().getSelection()) {
         App::DocumentObject* ob = sel.pObject;
         App::DocumentObject* sub = ob->getSubObject(sel.SubName);
-        std::string mod = Base::Type::getModuleName(sub->getTypeId().getName());
 
+        // Resolve App::Link
+        if (sub->isDerivedFrom<App::Link>()) {
+            auto link = static_cast<App::Link*>(sub);
+            sub = link->getLinkedObject(true);
+        }
+
+        std::string mod = Base::Type::getModuleName(sub->getTypeId().getName());
         if (!App::MeasureManager::hasMeasureHandler(mod.c_str())) {
             Base::Console().Message("No measure handler available for geometry of module: %s\n", mod);
             clearSelection();