From 312349dd711ba2bb4341ec16cc1b476351d6cbb9 Mon Sep 17 00:00:00 2001
From: culler <culler>
Date: Sun, 25 Apr 2021 22:03:02 +0000
Subject: Fix the flip transform for pixmaps.  This makes bitmap buttons work
 again.

---
 macosx/tkMacOSXDraw.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/macosx/tkMacOSXDraw.c b/macosx/tkMacOSXDraw.c
index aa7523a..f642bda 100644
--- a/macosx/tkMacOSXDraw.c
+++ b/macosx/tkMacOSXDraw.c
@@ -1266,6 +1266,7 @@ TkMacOSXSetupDrawingContext(
     Bool canDraw = true;
     TKContentView *view = nil;
     TkMacOSXDrawingContext dc = {};
+    CGFloat drawingHeight;
 
 #ifdef TK_MAC_DEBUG_CG
     fprintf(stderr, "TkMacOSXSetupDrawingContext: %s\n",
@@ -1357,11 +1358,13 @@ TkMacOSXSetupDrawingContext(
      * Finish configuring the drawing context.
      */
 
+    drawingHeight = view ? [view bounds].size.height :
+	CGContextGetClipBoundingBox(dc.context).size.height;
     CGAffineTransform t = {
 	.a = 1, .b = 0,
 	.c = 0, .d = -1,
 	.tx = 0,
-	.ty = [view bounds].size.height
+	.ty = drawingHeight
     };
 
 #ifdef TK_MAC_DEBUG_CG
-- 
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