From 6fee0fbcfe4bd2e81be7babc2257992918cddba5 Mon Sep 17 00:00:00 2001
From: Tony S Yu <tsyu80@gmail.com>
Date: Thu, 13 Dec 2012 14:30:02 -0500
Subject: [PATCH] BUG: Fix line visibility

Line gets cleared when "enter" key is pressed. Make sure it's visible on a mouse press.
---
 skimage/viewer/canvastools/linetool.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/skimage/viewer/canvastools/linetool.py b/skimage/viewer/canvastools/linetool.py
index 9395e513..91ca2bb2 100644
--- a/skimage/viewer/canvastools/linetool.py
+++ b/skimage/viewer/canvastools/linetool.py
@@ -62,6 +62,7 @@ class LineTool(CanvasToolBase):
     def on_mouse_press(self, event):
         if event.button != 1 and event.inaxes == None:
             return
+        self.set_visible(True)
         idx, px_dist = self._handles.closest(event.x, event.y)
         if px_dist < self.maxdist:
             self._active_pt = idx