From 17e3bf7b096fc811fd763bafc5555eab9b8e7932 Mon Sep 17 00:00:00 2001
From: Paul Licameli <paul.licameli@gmail.com>
Date: Sat, 8 Aug 2015 16:35:49 -0400
Subject: [PATCH] Bug752: yellow snap lines should erase when mouse-up is not
 over a track

---
 src/TrackPanel.cpp | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/src/TrackPanel.cpp b/src/TrackPanel.cpp
index 996a6b050..671ea7131 100644
--- a/src/TrackPanel.cpp
+++ b/src/TrackPanel.cpp
@@ -2148,8 +2148,11 @@ void TrackPanel::HandleSelect(wxMouseEvent & event)
          delete mSnapManager;
          mSnapManager = NULL;
       }
-      mSnapLeft = -1;
-      mSnapRight = -1;
+      // Do not draw yellow lines
+      if (mSnapLeft != -1 || mSnapRight != -1) {
+         mSnapLeft = mSnapRight = -1;
+         Refresh(false);
+      }
 
       SetCapturedTrack( NULL );
       //Send the new selection state to the undo/redo stack:
@@ -2846,8 +2849,8 @@ void TrackPanel::StartSelection(int mouseXCoordinate, int trackLeftEdge)
       bool snappedPoint, snappedTime;
       if (mSnapManager->Snap(mCapturedTrack, mSelStart, false,
                              &s, &snappedPoint, &snappedTime)) {
-         if (snappedPoint)
-            mSnapLeft = mViewInfo->TimeToPosition(s, trackLeftEdge);
+         //if (snappedPoint)
+            //mSnapLeft = mViewInfo->TimeToPosition(s, trackLeftEdge);
       }
    }
 
@@ -3857,8 +3860,12 @@ void TrackPanel::HandleSlide(wxMouseEvent & event)
          delete mSnapManager;
          mSnapManager = NULL;
       }
-      mSnapLeft = -1;
-      mSnapRight = -1;
+
+      // Do not draw yellow lines
+      if (mSnapLeft != -1 || mSnapRight != -1) {
+         mSnapLeft = mSnapRight = -1;
+         Refresh(false);
+      }
 
       if (!mDidSlideVertically && mHSlideAmount==0)
          return;