Avoid printing too many decimal places in some situations

2 files changed, 15 insertions, 1 deletions

diff --git a/src/ObjectModel/ObjectModel.cpp b/src/ObjectModel/ObjectModel.cpp
index a8a42ff4..d085beec 100644
--- a/src/ObjectModel/ObjectModel.cpp
+++ b/src/ObjectModel/ObjectModel.cpp
@@ -193,6 +193,20 @@ void ExpressionValue::Release() noexcept
 	}
 }
 
+// Get the format string to use assuming this is a floating point number
+const char *ExpressionValue::GetFloatFormatString() const noexcept
+{
+	float f = 1.0;
+	unsigned int digitsAfterPoint = param;
+	while (digitsAfterPoint > 1 && fVal > f)
+	{
+		f *= 10.0;
+		--digitsAfterPoint;
+	}
+
+	return ::GetFloatFormatString(digitsAfterPoint);
+}
+
 #if SUPPORT_CAN_EXPANSION
 
 // Given that this is a CanExpansionBoardDetails value, extract the part requested according to the parameter and append it to the string
diff --git a/src/ObjectModel/ObjectModel.h b/src/ObjectModel/ObjectModel.h
index 3202aa54..9ae99e80 100644
--- a/src/ObjectModel/ObjectModel.h
+++ b/src/ObjectModel/ObjectModel.h
@@ -194,7 +194,7 @@ struct ExpressionValue
 #endif
 
 	// Get the format string to use assuming this is a floating point number
-	const char *GetFloatFormatString() const noexcept { return ::GetFloatFormatString(param); }
+	const char *GetFloatFormatString() const noexcept;
 
 	// Append a string representation of this value to a string
 	void AppendAsString(const StringRef& str) const noexcept;