From fed3f87604768ba795803a56dd34295b028974bd Mon Sep 17 00:00:00 2001
From: Brian Frank <briansfrank@gmail.com>
Date: Mon, 30 Dec 2024 11:00:58 -0500
Subject: [PATCH] dom: Win.devicePixelRatio

---
 src/doc/docIntro/doc/ChangeLog.fandoc | 3 +++
 src/dom/es/CanvasGraphics.js          | 5 +++--
 src/dom/es/WinPeer.js                 | 8 +++++++-
 src/dom/fan/Win.fan                   | 6 +++++-
 src/dom/js/WinPeer.js                 | 8 +++++++-
 5 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/src/doc/docIntro/doc/ChangeLog.fandoc b/src/doc/docIntro/doc/ChangeLog.fandoc
index 26c6d0745..7c460b8a4 100644
--- a/src/doc/docIntro/doc/ChangeLog.fandoc
+++ b/src/doc/docIntro/doc/ChangeLog.fandoc
@@ -6,6 +6,9 @@
 ** license:    Licensed under the Academic Free License version 3.0
 **************************************************************************
 
+*Build 1.0.82 (working)*
+- Win.devicePixelRatio
+
 *Build 1.0.81 (6 Dec 2024)*
 - New markdown pod
 - New util::Console API
diff --git a/src/dom/es/CanvasGraphics.js b/src/dom/es/CanvasGraphics.js
index 7884315b4..eb4e43f4d 100644
--- a/src/dom/es/CanvasGraphics.js
+++ b/src/dom/es/CanvasGraphics.js
@@ -172,7 +172,7 @@ class CanvasGraphics extends sys.Obj {
   }
 
   // This drawEllipse(Float x, Float y, Float w, Float h)
-  drawEllipsefunction(x, y, w, h)
+  drawEllipse(x, y, w, h)
   {
     this.pathEllipse(x, y, w, h);
     this.cx.stroke();
@@ -273,4 +273,5 @@ class CanvasGraphics extends sys.Obj {
   // state for fields in push/pop
   #stack = new Array();
 
-}
\ No newline at end of file
+}
+
diff --git a/src/dom/es/WinPeer.js b/src/dom/es/WinPeer.js
index a921d2524..47430b1ca 100644
--- a/src/dom/es/WinPeer.js
+++ b/src/dom/es/WinPeer.js
@@ -137,6 +137,11 @@ class WinPeer extends sys.Obj {
     return this.#screenSize;
   }
 
+  devicePixelRatio(self)
+  {
+    return sys.Float.make(this.win.devicePixelRatio);
+  }
+
   #parent;
   parent(self)
   {
@@ -457,4 +462,5 @@ class WinPeer extends sys.Obj {
 
     return map;
   }
-}
\ No newline at end of file
+}
+
diff --git a/src/dom/fan/Win.fan b/src/dom/fan/Win.fan
index 6c4407337..f00a67402 100644
--- a/src/dom/fan/Win.fan
+++ b/src/dom/fan/Win.fan
@@ -79,6 +79,9 @@ class Win
   ** Return the size of the screen in pixels.
   native Size screenSize()
 
+  ** Ratio of physical pixels to the resolution in CSS pixels
+  native Float devicePixelRatio()
+
   ** Returns a reference to the parent of the current window
   ** or subframe, or null if this is the top-most window.
   native Win? parent()
@@ -255,4 +258,5 @@ class Win
   ** Poll for a browser dependent map of diagnostics name/value pairs
   ** for current state of JsVM and DOM.
   @NoDoc native Str:Obj diagnostics()
-}
\ No newline at end of file
+}
+
diff --git a/src/dom/js/WinPeer.js b/src/dom/js/WinPeer.js
index 2fbe295a9..5393dccf5 100644
--- a/src/dom/js/WinPeer.js
+++ b/src/dom/js/WinPeer.js
@@ -128,6 +128,11 @@ fan.dom.WinPeer.prototype.screenSize = function(self)
   return this.$screenSize;
 }
 
+fan.dom.WinPeer.prototype.devicePixelRatio = function(self)
+{
+  return fan.sys.Float.make(this.win.devicePixelRatio);
+}
+
 fan.dom.WinPeer.prototype.parent = function(self)
 {
   if (this.win == this.win.parent) return null;
@@ -452,4 +457,5 @@ fan.dom.WinPeer.prototype.diagnostics = function(self)
   map.set("perf.timing.load",           dur(t.loadEventStart,        t.loadEventEnd));
 
   return map;
-}
\ No newline at end of file
+}
+