From ee289159b6089b46126250fbd933062913fc255c Mon Sep 17 00:00:00 2001
From: Stephen White <pi1541contact@gmail.com>
Date: Tue, 12 Jun 2018 19:03:29 +1000
Subject: [PATCH] Added the ability to have floating point values in the
 options.txt file.

---
 src/options.cpp | 17 +++++++++++++++++
 src/options.h   |  1 +
 2 files changed, 18 insertions(+)

diff --git a/src/options.cpp b/src/options.cpp
index bb980da..26c3b31 100644
--- a/src/options.cpp
+++ b/src/options.cpp
@@ -17,6 +17,8 @@
 // along with Pi1541. If not, see <http://www.gnu.org/licenses/>.
 
 #include "options.h"
+#include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include <strings.h>
 #include <ctype.h>
@@ -158,6 +160,13 @@ Options::Options(void)
 		if ((nValue = GetDecimal(pValue)) != INVALID_VALUE) \
 			Name = nValue; \
 	}
+#define ELSE_CHECK_FLOAT_OPTION(Name) \
+	else if (strcasecmp(pOption, #Name) == 0) \
+	{ \
+		unsigned nValue = 0; \
+		if ((nValue = GetFloat(pValue)) != INVALID_VALUE) \
+			Name = nValue; \
+	}
 
 void Options::Process(char* buffer)
 {
@@ -267,6 +276,14 @@ unsigned Options::GetDecimal(char* pString)
 	return nResult;
 }
 
+float Options::GetFloat(char* pString)
+{
+	if (pString == 0 || *pString == '\0')
+		return 0;
+
+	return atof(pString);
+}
+
 const char* Options::GetRomName(int index) const
 {
 	switch (index)
diff --git a/src/options.h b/src/options.h
index 2cd6d37..aa80a2b 100644
--- a/src/options.h
+++ b/src/options.h
@@ -76,6 +76,7 @@ public:
 	const char* GetLCDName() const { return LCDName; }
 
 	static unsigned GetDecimal(char* pString);
+	static float GetFloat(char* pString);
 
 private:
 	unsigned int deviceID;