From a8bc9f5af423f960d5725f26cbcd2dd63e4adcba Mon Sep 17 00:00:00 2001
From: Neil Hodgson <nyamatongwe@gmail.com>
Date: Sat, 22 Aug 2015 08:20:53 +1000
Subject: Potential fix for bug [#1751]. Save and restore graphics state in
 case deleted context was causing a crash.

---
 cocoa/ScintillaCocoa.mm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/cocoa/ScintillaCocoa.mm b/cocoa/ScintillaCocoa.mm
index b70975c28..e4117eb15 100644
--- a/cocoa/ScintillaCocoa.mm
+++ b/cocoa/ScintillaCocoa.mm
@@ -1426,6 +1426,7 @@ void ScintillaCocoa::StartDrag()
       CGContextRef gcsw = sw->GetContext();
       NSGraphicsContext *nsgc = [NSGraphicsContext graphicsContextWithGraphicsPort: gcsw
                                                                            flipped: YES];
+      [NSGraphicsContext saveGraphicsState];
       [NSGraphicsContext setCurrentContext:nsgc];
       CGContextTranslateCTM(gcsw, -client.left, -client.top);
       Paint(sw, client);
@@ -1444,6 +1445,8 @@ void ScintillaCocoa::StartDrag()
       // XXX TODO: overwrite any part of the image that is not part of the
       //           selection to make it transparent.  right now we just use
       //           the full rectangle which may include non-selected text.
+
+      [NSGraphicsContext restoreGraphicsState];
     }
     sw->Release();
     delete sw;
-- 
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