From 3ca08cff9a92afa4d4d56dfdf8ad708fc5744558 Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Sun, 8 Sep 2019 12:24:50 +0200
Subject: [PATCH] hook in generateCanvas

---
 pattern2.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pattern2.cpp b/pattern2.cpp
index a6a07904..20572374 100644
--- a/pattern2.cpp
+++ b/pattern2.cpp
@@ -1523,7 +1523,12 @@ EX namespace patterns {
     return ep.parse();
     }
   
+  EX hookset<int(cell*)> *hooks_generate_canvas;
+
   EX int generateCanvas(cell *c) {
+    
+    int i = callhandlers(-1, hooks_generate_canvas, c);
+    if(i != -1) return i;
     switch(whichCanvas) {
       #if CAP_CRYSTAL
       case 'K':