From f871591c1c8feed0fbe3ad04dc37b2771b028d1c Mon Sep 17 00:00:00 2001
From: Arnaud Gardelein <arnaud@oscopy.org>
Date: Thu, 5 Jan 2012 21:49:59 +0100
Subject: [PATCH 1/2] Handle events in RectangleSelector when mouse is out of
 axis and button still pressed

---
 lib/matplotlib/widgets.py | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/lib/matplotlib/widgets.py b/lib/matplotlib/widgets.py
index 8202e6be4677..d002231177b0 100644
--- a/lib/matplotlib/widgets.py
+++ b/lib/matplotlib/widgets.py
@@ -1242,6 +1242,21 @@ def ignore(self, event):
         if self.eventpress == None:
             return event.inaxes!= self.ax
 
+        # If a button was pressed, check if the release-button is the
+        # same. If event is out of axis, limit the data coordinates to axes
+        # boundaries.
+        if event.button == self.eventpress.button and event.inaxes != self.ax:
+            (xdata, ydata) = self.ax.transData.inverted().transform_point((event.x, event.y))
+            xlim = self.ax.get_xlim()
+            ylim = self.ax.get_ylim()
+            if xdata < xlim[0]: xdata = xlim[0]
+            if xdata > xlim[1]: xdata = xlim[1]
+            if ydata < ylim[0]: ydata = ylim[0]
+            if ydata > ylim[1]: ydata = ylim[1]
+            event.xdata = xdata
+            event.ydata = ydata
+            return False
+
         # If a button was pressed, check if the release-button is the
         # same.
         return  (event.inaxes!=self.ax or

From 4e8024085d1f7eb693cc9cccd453c42ec2ed5f50 Mon Sep 17 00:00:00 2001
From: Arnaud Gardelein <agardelein@yahoo.fr>
Date: Sun, 8 Jan 2012 16:11:03 +0100
Subject: [PATCH 2/2] Save deferencing operations, use get_[x|y]bound()

As per Eric Firing comment
---
 lib/matplotlib/widgets.py | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/lib/matplotlib/widgets.py b/lib/matplotlib/widgets.py
index d002231177b0..ebb0ceab45ba 100644
--- a/lib/matplotlib/widgets.py
+++ b/lib/matplotlib/widgets.py
@@ -1247,12 +1247,12 @@ def ignore(self, event):
         # boundaries.
         if event.button == self.eventpress.button and event.inaxes != self.ax:
             (xdata, ydata) = self.ax.transData.inverted().transform_point((event.x, event.y))
-            xlim = self.ax.get_xlim()
-            ylim = self.ax.get_ylim()
-            if xdata < xlim[0]: xdata = xlim[0]
-            if xdata > xlim[1]: xdata = xlim[1]
-            if ydata < ylim[0]: ydata = ylim[0]
-            if ydata > ylim[1]: ydata = ylim[1]
+            x0, x1 = self.ax.get_xbound()
+            y0, y1 = self.ax.get_ybound()
+            xdata = max(x0, xdata)
+            xdata = min(x1, xdata)
+            ydata = max(y0, ydata)
+            ydata = min(y1, ydata)
             event.xdata = xdata
             event.ydata = ydata
             return False