From 29b0367dfb58cab4fb0c40d6b0c3c035f10b75ae Mon Sep 17 00:00:00 2001
From: Zithia Satazaki <qmanxt@gmail.com>
Date: Tue, 29 Mar 2022 14:54:41 -0400
Subject: [PATCH] value negation

---
 notes                                   | 3 ++-
 xybrid/ui/patterneditoritemdelegate.cpp | 4 ++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/notes b/notes
index 195fb61..864fe1a 100644
--- a/notes
+++ b/notes
@@ -44,7 +44,8 @@ TODO {
     - make space preview on port column
     - fix strut not working except to overwrite another param
     
-    add negate function to param columns
+    - add negate function to param columns
+    multi select negate
     
     revert-to-saved menu action
     
diff --git a/xybrid/ui/patterneditoritemdelegate.cpp b/xybrid/ui/patterneditoritemdelegate.cpp
index 4a4a3a2..ab12269 100644
--- a/xybrid/ui/patterneditoritemdelegate.cpp
+++ b/xybrid/ui/patterneditoritemdelegate.cpp
@@ -323,6 +323,10 @@ bool PatternEditorItemDelegate::editorEvent(QEvent *event, QAbstractItemModel *m
                         view->setCurrentIndex(index.siblingAtColumn(index.column()+1));
                         return dc->commit();
                     } else {
+                        if (k == Qt::Key_Minus) { // negate current value
+                            row.param(par)[1] *= -1;
+                            return dc->commit();
+                        }
                         if (k == Qt::Key_Comma) { // convenience; allow inserting an extend from number column
                             if (row.numParams() >= PatternEditorModel::paramSoftCap) return dc->cancel();
                             row.insertParam(par+1, ',');