From f13026b544551bf45cb093cccfd04075d57a377c Mon Sep 17 00:00:00 2001
From: Uwe Rathmann <Uwe.Rathmann@tigertal.de>
Date: Thu, 22 Dec 2022 20:27:49 +0100
Subject: [PATCH] conic gradients fixed

---
 src/nodes/QskGradientMaterial.cpp | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/src/nodes/QskGradientMaterial.cpp b/src/nodes/QskGradientMaterial.cpp
index 8ecc7375..2e3cf819 100644
--- a/src/nodes/QskGradientMaterial.cpp
+++ b/src/nodes/QskGradientMaterial.cpp
@@ -526,18 +526,31 @@ namespace
                 rect.left() + dir.center().x() * rect.width(),
                 rect.top() + dir.center().y() * rect.height() );
 
+            if ( center != m_center )
+            {
+                m_center = center;
+                changed = true;
+            }
+
             // Angles as ratio of a rotation
 
             float start = fmod( dir.startAngle(), 360.0 ) / 360.0;
             if ( start < 0.0)
                 start += 1.0;
 
-            const float span = fmod( dir.spanAngle(), 360.0 ) / 360.0;
+            float span;
 
-            if ( center != m_center )
+            if ( dir.spanAngle() >= 360.0 )
             {
-                m_center = center;
-                changed = true;
+                span = 1.0;
+            }
+            else if ( dir.spanAngle() <= -360.0 )
+            {
+                span = -1.0;
+            }
+            else
+            {
+                span = fmod( dir.spanAngle(), 360.0 ) / 360.0;
             }
 
             if ( ( start != m_start ) || ( span != m_span ) )