From 49a63f04ef790d22fa7c44fbc8ad818ca1e046ab Mon Sep 17 00:00:00 2001
From: "Adam D. Ruppe" <destructionator@gmail.com>
Date: Wed, 10 Nov 2021 08:47:19 -0500
Subject: [PATCH] asserts to prevent things from overflowing

---
 minigui.d | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/minigui.d b/minigui.d
index 330cb80..4e90c45 100644
--- a/minigui.d
+++ b/minigui.d
@@ -7607,7 +7607,9 @@ class TableView : Widget {
 		if(remaining < 0)
 			remaining = 0;
 
+		int percentTotal;
 		foreach(i, ref column; columns) {
+			percentTotal += column.widthPercent;
 			auto c = column.width + (remaining * column.widthPercent) / 100;
 			column.calculatedWidth = c;
 			version(win32_widgets)
@@ -7615,6 +7617,10 @@ class TableView : Widget {
 				SendMessage(hwnd, LVM_SETCOLUMNWIDTH, i, c); // LVSCW_AUTOSIZE or LVSCW_AUTOSIZE_USEHEADER are amazing omg
 		}
 
+		assert(percentTotal >= 0, "The total percents in your column definitions were negative. They must add up to something between 0 and 100.");
+		assert(percentTotal <= 100, "The total percents in your column definitions exceeded 100. They must add up to no more than 100 (can be less though).");
+			
+
 	}
 
 	override void registerMovement() {