From cf881ad03a06234d6e7023505df934a29e98c449 Mon Sep 17 00:00:00 2001
From: Artur Wieczorek <artwik@wp.pl>
Date: Thu, 2 Sep 2021 19:08:26 +0200
Subject: [PATCH] Fix creating CGContext from drawing context

Save initial affine transformations for just created CGContext
(like it's done in all wxMacCoreGraphicsContext ctors) to properly
manage user-defined transformations in SetTransform(),
GetTransform().
---
 src/osx/carbon/graphics.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/osx/carbon/graphics.cpp b/src/osx/carbon/graphics.cpp
index 36ccab6406..8dfcacacef 100644
--- a/src/osx/carbon/graphics.cpp
+++ b/src/osx/carbon/graphics.cpp
@@ -1814,6 +1814,7 @@ bool wxMacCoreGraphicsContext::EnsureIsValid()
                 }
             }
 #endif
+            m_initTransform = CGContextGetCTM(m_cgContext);
             CGContextConcatCTM( m_cgContext, m_windowTransform );
             CGContextSetTextMatrix( m_cgContext, CGAffineTransformIdentity );
             m_contextSynthesized = true;