guix/gnu/packages/patches/pdfpc-build-with-vala-0.56.patch

From 18beaecbbcc066e0d4c889b3aa3ecaa7351f7768 Mon Sep 17 00:00:00 2001
Message-ID: <18beaecbbcc066e0d4c889b3aa3ecaa7351f7768.1711183363.git.vivien@planete-kraus.eu>
From: Evgeny Stambulchik <fnevgeny@gmail.com>
Date: Tue, 25 Apr 2023 16:11:25 +0300
Subject: [PATCH] Create Lists of nullable types

---
This is the pull request for issue 686, merged in master, not released
yet.

 src/classes/drawings/drawing_commands.vala | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/classes/drawings/drawing_commands.vala b/src/classes/drawings/drawing_commands.vala
index 77e56e6..c305a8c 100644
--- a/src/classes/drawings/drawing_commands.vala
+++ b/src/classes/drawings/drawing_commands.vala
@@ -54,8 +54,8 @@ namespace pdfpc {
         }
 
         public void clear() {
-            this.drawing_commands = new List<DrawingCommand>();
-            this.redo_commands = new List<DrawingCommand>();
+            this.drawing_commands = new List<DrawingCommand?>();
+            this.redo_commands = new List<DrawingCommand?>();
         }
 
         public void add_line(bool is_eraser,
@@ -70,7 +70,7 @@ namespace pdfpc {
 
             // After adding a new line you can no longer redo the old
             // path.
-            this.redo_commands = new List<DrawingCommand>(); // clear
+            this.redo_commands = new List<DrawingCommand?>(); // clear
 
             bool new_path = true;
             double epsilon = 1e-4; // Less than 0.1 pixel for a 1000x1000 img
-- 
2.41.0