From e50107d0339000c48a955caab8b56d0d4fc56e84 Mon Sep 17 00:00:00 2001
From: Star Rauchenberger <fefferburbia@gmail.com>
Date: Sun, 19 May 2024 11:26:24 -0400
Subject: Higher quality while still fast

---
 src/subway_map.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/subway_map.cpp b/src/subway_map.cpp
index 51f17c5..47ebfdf 100644
--- a/src/subway_map.cpp
+++ b/src/subway_map.cpp
@@ -1,6 +1,7 @@
 #include "subway_map.h"
 
 #include <wx/dcbuffer.h>
+#include <wx/dcgraph.h>
 
 #include <sstream>
 
@@ -185,8 +186,10 @@ void SubwayMap::OnPaint(wxPaintEvent &event) {
           GetSize().GetHeight() * map_image_.GetWidth() / render_width_ / zoom_;
     }
 
-    dc.StretchBlit(dst_x, dst_y, dst_w, dst_h, &rendered_dc, src_x, src_y,
-                   src_w, src_h);
+    wxGCDC gcdc(dc);
+    gcdc.GetGraphicsContext()->SetInterpolationQuality(wxINTERPOLATION_GOOD);
+    gcdc.StretchBlit(dst_x, dst_y, dst_w, dst_h, &rendered_dc, src_x, src_y,
+                     src_w, src_h);
   }
 
   if (hovered_item_) {
-- 
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