From 67721a5832f32134a4f63bb84d771b4bb218d649 Mon Sep 17 00:00:00 2001
From: Tyler Goodlet <jgbt@protonmail.com>
Date: Fri, 23 Jul 2021 12:19:07 -0400
Subject: [PATCH] Add dpi font scale getter

---
 piker/ui/_style.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/piker/ui/_style.py b/piker/ui/_style.py
index 90f8a898..2b73b0df 100644
--- a/piker/ui/_style.py
+++ b/piker/ui/_style.py
@@ -56,7 +56,6 @@ class DpiAwareFont:
         self._qfont = QtGui.QFont(name)
         self._font_size: str = font_size
         self._qfm = QtGui.QFontMetrics(self._qfont)
-        self._physical_dpi = None
         self._font_inches: float = None
         self._screen = None
 
@@ -82,6 +81,10 @@ class DpiAwareFont:
     def font(self):
         return self._qfont
 
+    def scale(self) -> float:
+        screen = self.screen
+        return screen.logicalDotsPerInch() / screen.physicalDotsPerInch()
+
     @property
     def px_size(self) -> int:
         return self._qfont.pixelSize()
@@ -114,7 +117,7 @@ class DpiAwareFont:
         # dpi is likely somewhat scaled down so use slightly larger font size
         if scale > 1 and self._font_size:
             # TODO: this denominator should probably be determined from
-            # relative aspect rations or something?
+            # relative aspect ratios or something?
             inches = inches * (1 / scale) * (1 + 6/16)
             dpi = mx_dpi