From: Jean-Philippe Bruyère <jp_bruyere@hotmail.com>
Date: Wed, 14 Mar 2018 13:00:47 +0000 (+0100)
Subject: slider small increment accuracy
X-Git-Tag: 0.7.3~4^2~8
X-Git-Url: https://git.osiis.dedyn.io/?a=commitdiff_plain;h=3afeacbe13680d45b3bd041378bc5366c99e5758;p=jp%2Fcrow.git

slider small increment accuracy
---

diff --git a/src/GraphicObjects/Slider.cs b/src/GraphicObjects/Slider.cs
index 59eb99ec..4492c406 100644
--- a/src/GraphicObjects/Slider.cs
+++ b/src/GraphicObjects/Slider.cs
@@ -215,11 +215,27 @@ namespace Crow
 		}
 		public override void onMouseMove (object sender, MouseMoveEventArgs e)
 		{
-			if (holdCursor) {
-				if (_orientation == Orientation.Horizontal)
-					Value += (double)e.XDelta / unity;
-				else
-					Value += (double)e.YDelta / unity;
+			if (holdCursor) {				
+				Point m = ScreenPointToLocal (e.Position);
+				Rectangle r = ClientRectangle;
+
+				if (_orientation == Orientation.Horizontal) {
+					if (r.Width - _cursorSize == 0)
+						return;					
+					double unit = (Maximum - Minimum) / (double)(r.Width - _cursorSize);
+					double tmp = (double)m.X * unit;
+					tmp -= tmp % SmallIncrement;
+					Value = tmp;
+				} else {
+					if (r.Height - _cursorSize == 0)
+						return;					
+					double unit = (Maximum - Minimum) / (double)(r.Height - _cursorSize);
+					double tmp = (double)m.Y * unit;
+					tmp -= tmp % SmallIncrement;
+					Value = tmp;
+				}
+
+
 			}
 			
 			base.onMouseMove (sender, e);