From ae7c2b3a9151ddfbc04d54a2d90de596813d0525 Mon Sep 17 00:00:00 2001
From: Christopher Kleine <chris@suletuxe.de>
Date: Wed, 19 May 2021 11:18:06 +0200
Subject: Changed scale behaviour

The scale was behaving weird.
It went from 100 -> 110 -> 121 -> 109 -> 98
One had to use ctrl+0 get it back to 100

This is fixed in this commit.
It uses an indicator to change the scale.
---
 plugins/scale.lua | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

(limited to 'plugins/scale.lua')

diff --git a/plugins/scale.lua b/plugins/scale.lua
index e93c3c0..658cb98 100644
--- a/plugins/scale.lua
+++ b/plugins/scale.lua
@@ -11,6 +11,8 @@ local CommandView = require "core.commandview"
 config.scale_mode = "code"
 config.scale_use_mousewheel = true
 
+local scale_level = 0
+local scale_steps = 0.1
 local font_cache = setmetatable({}, { __mode = "k" })
 
 -- the following should be kept in sync with core.style's default font settings
@@ -94,11 +96,26 @@ function RootView:on_mouse_wheel(d, ...)
   end
 end
 
+local function res_scale()
+    scale_level = 0
+    set_scale(default)
+end
+
+local function inc_scale()
+    scale_level = scale_level + 1
+    set_scale(default + scale_level * scale_steps)
+end
+
+local function dec_scale()
+    scale_level = scale_level - 1
+    set_scale(default + scale_level * scale_steps)
+end
+
 
 command.add(nil, {
-  ["scale:reset"   ] = function() set_scale(default)             end,
-  ["scale:decrease"] = function() set_scale(current_scale * 0.9) end,
-  ["scale:increase"] = function() set_scale(current_scale * 1.1) end,
+  ["scale:reset"   ] = function() res_scale() end,
+  ["scale:decrease"] = function() dec_scale() end,
+  ["scale:increase"] = function() inc_scale() end,
 })
 
 keymap.add {
-- 
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