From b1fb68fd3c6ee3535ca066b271150a9cdd54c975 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Sun, 22 Jul 2018 18:18:10 +0200
Subject: Fix stepped logarithmic controls in generic Qt UIs

---
 src/jalv_qt.cpp | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/jalv_qt.cpp b/src/jalv_qt.cpp
index 38340b2..72f9f0a 100644
--- a/src/jalv_qt.cpp
+++ b/src/jalv_qt.cpp
@@ -14,8 +14,9 @@
   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
-#include <stdio.h>
-#include <math.h>
+#include <algorithm>
+#include <cmath>
+#include <cstdio>
 
 #include "jalv_internal.h"
 
@@ -417,7 +418,7 @@ Control::Control(PortContainer portContainer, QWidget* parent)
 
 	LilvNode* stepsNode = lilv_port_get(plugin, lilvPort, nodes->pprops_rangeSteps);
 	if (lilv_node_is_int(stepsNode)) {
-		steps = lilv_node_as_int(stepsNode);
+		steps = std::max(lilv_node_as_int(stepsNode), 2);
 	} else {
 		steps = DIAL_STEPS;
 	}
@@ -563,7 +564,7 @@ Control::getValue()
 	} else if (isInteger) {
 		return dial->value();
 	} else if (isLogarithmic) {
-		return min * pow(max / min, (float)dial->value() / steps);
+		return min * pow(max / min, (float)dial->value() / (steps - 1));
 	} else {
 		return (float)dial->value() / steps;
 	}
-- 
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