From c3158d774cc02523188e4ce03b4972f1ad250e9d Mon Sep 17 00:00:00 2001
From: Amanda Graven <amanda@graven.dev>
Date: Tue, 21 May 2024 13:22:22 +0200
Subject: [PATCH] Zoom with neovide scale factor if available

---
 init.lua | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/init.lua b/init.lua
index 89d2c00..55a13f8 100644
--- a/init.lua
+++ b/init.lua
@@ -99,13 +99,9 @@ local zoom_notification = nil
 --- "Zoom" by changing gui font size
 --- @param delta integer
 function _G.zoom(delta)
-	local size = fn.substitute(o.guifont, [[^.*:h\([^:]*\).*$]], [[\1]], '')
-	size = size + delta
-	local guifont = fn.substitute(o.guifont, [[:h\([^:]*\)]], ':h' .. size, '')
-	o.guifont = guifont
 	local properties = {
-		title = 'Font size',
 		hide_from_history = true,
+		render = 'compact',
 		on_close = function()
 			zoom_notification = nil
 		end
@@ -113,7 +109,21 @@ function _G.zoom(delta)
 	if zoom_notification ~= nil then
 		properties.replace = zoom_notification.id
 	end
-	zoom_notification = vim.notify('Changing font size to ' .. size, vim.log.levels.INFO, properties)
+
+	local message
+	if vim.g.neovide_scale_factor ~= nil then
+		properties.title = 'Zoom'
+		vim.g.neovide_scale_factor = vim.g.neovide_scale_factor + (delta * 0.05)
+		message = 'Zoom set to ' .. vim.g.neovide_scale_factor * 100 .. '%'
+	else
+		properties.title = 'Font size'
+		local size = fn.substitute(o.guifont, [[^.*:h\([^:]*\).*$]], [[\1]], '')
+		size = size + delta
+		local guifont = fn.substitute(o.guifont, [[:h\([^:]*\)]], ':h' .. size, '')
+		o.guifont = guifont
+		message = 'Font size set to ' .. size
+	end
+	zoom_notification = vim.notify(message, vim.log.levels.INFO, properties)
 end
 
 local function zoom_in()