From 891eb6c94bfb2222610daabac33ebd993272ba01 Mon Sep 17 00:00:00 2001
From: Nicolas Cornu <nicolas.cornu@epfl.ch>
Date: Fri, 6 Oct 2023 11:41:27 +0200
Subject: [PATCH] One more CopyString

---
 src/ivoc/graph.cpp | 20 ++++++--------------
 src/ivoc/graph.h   |  2 +-
 2 files changed, 7 insertions(+), 15 deletions(-)

diff --git a/src/ivoc/graph.cpp b/src/ivoc/graph.cpp
index 140b3753379..08468a17d29 100644
--- a/src/ivoc/graph.cpp
+++ b/src/ivoc/graph.cpp
@@ -1369,7 +1369,6 @@ Graph::Graph(bool b)
     loc_ = 0;
     x_expr_ = NULL;
     x_pval_ = {};
-    var_name_ = NULL;
     rvp_ = NULL;
     cross_action_ = NULL;
     vector_copy_ = false;
@@ -1463,20 +1462,13 @@ Graph::~Graph() {
     Resource::unref(sc_);
     Resource::unref(current_polyline_);
     Resource::unref(family_label_);
-    if (var_name_) {
-        delete var_name_;
-    }
     if (cross_action_) {
         delete cross_action_;
     }
 }
 
 void Graph::name(char* s) {
-    if (var_name_) {
-        *var_name_ = s;
-    } else {
-        var_name_ = new CopyString(s);
-    }
+    var_name_ = s;
 }
 
 void Graph::help() {
@@ -2363,14 +2355,14 @@ void Graph::save_phase2(std::ostream& o) {
         Sprintf(buf, "save_window_.family(\"%s\")", family_label_->text());
         o << buf << std::endl;
     }
-    if (var_name_) {
-        if ((var_name_->string())[var_name_->length() - 1] == '.') {
-            Sprintf(buf, "%sappend(save_window_)", var_name_->string());
+    if (!var_name_.empty()) {
+        if (var_name_.back() == '.') {
+            Sprintf(buf, "%sappend(save_window_)", var_name_.c_str());
         } else {
-            Sprintf(buf, "%s = save_window_", var_name_->string());
+            Sprintf(buf, "%s = save_window_", var_name_.c_str());
         }
         o << buf << std::endl;
-        Sprintf(buf, "save_window_.save_name(\"%s\")", var_name_->string());
+        Sprintf(buf, "save_window_.save_name(\"%s\")", var_name_.c_str());
         o << buf << std::endl;
     }
     if (x_expr_) {
diff --git a/src/ivoc/graph.h b/src/ivoc/graph.h
index 69b2b7b48ff..a6d7d7840ff 100644
--- a/src/ivoc/graph.h
+++ b/src/ivoc/graph.h
@@ -170,7 +170,7 @@ class Graph: public Scene {  // Scene of GraphLines labels and polylines
     bool extension_flushed_;
     SymChooser* sc_;
     static SymChooser* fsc_;
-    CopyString* var_name_;
+    std::string var_name_;
     GPolyLine* current_polyline_;
 
     const Color* color_;