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From 738eabcd49a3a66ad750833da5c0348137447c13 Mon Sep 17 00:00:00 2001
From: Philippe Masset 
Date: Tue, 9 Apr 2013 16:05:55 +0200
Subject: [PATCH 25/83] Prevent errors in browsers that don't support canvases.

Added feature detection to prevent the plugin from executing if the
browser doesn't support canvases.
Added the `error` hook, triggered if the browser doesn't support
canvases.
---
 js/jquery.knob.js | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/js/jquery.knob.js b/js/jquery.knob.js
index 32caa3d..ef3ab5f 100644
--- a/js/jquery.knob.js
+++ b/js/jquery.knob.js
@@ -106,7 +106,8 @@
                     draw : null, // function () {}
                     change : null, // function (value) {}
                     cancel : null, // function () {}
-                    release : null // function (value) {}
+                    release : null, // function (value) {}
+                    error : null // function () {}
                 }, this.o
             );
 
@@ -151,7 +152,13 @@
             this.$c = $('');
-            this.c = this.$c[0].getContext("2d");
+            
+            this.c = this.$c[0].getContext? this.$c[0].getContext('2d') : null;
+			
+            if (!this.c) {
+                this.o.error && this.o.error();
+                return;
+            }
 
             this.$
                 .wrap($('

Date: Thu, 27 Jun 2013 23:16:02 +0200
Subject: [PATCH 28/83] Support for HiDPI screens #99 #93 #61

---
 js/jquery.knob.js | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/js/jquery.knob.js b/js/jquery.knob.js
index ef3ab5f..ae36b6b 100644
--- a/js/jquery.knob.js
+++ b/js/jquery.knob.js
@@ -63,6 +63,7 @@
         this.cH = null; // change hook
         this.eH = null; // cancel hook
         this.rH = null; // release hook
+        this.scale = 1; // scale factor
 
         this.run = function () {
             var cf = function (e, conf) {
@@ -166,6 +167,21 @@
                         this.o.height + 'px;">
'))
                 .before(this.$c);
 
+            this.scale = (window.devicePixelRatio || 1) /
+                        (
+                            this.c.webkitBackingStorePixelRatio ||
+                            this.c.mozBackingStorePixelRatio ||
+                            this.c.msBackingStorePixelRatio ||
+                            this.c.oBackingStorePixelRatio ||
+                            this.c.backingStorePixelRatio || 1
+                        );
+            if (this.scale !== 1) {
+                this.$c[0].width = this.$c[0].width * this.scale;
+                this.$c[0].height = this.$c[0].height * this.scale;
+                this.$c.width(this.o.width);
+                this.$c.height(this.o.height);
+            }
+
             if (this.v instanceof Object) {
                 this.cv = {};
                 this.copy(this.v, this.cv);
@@ -196,8 +212,9 @@
             var d = true,
                 c = document.createElement('canvas');
 
-            c.width = s.o.width;
-            c.height = s.o.height;
+            c.width = s.o.width * s.scale;
+            c.height = s.o.height * s.scale;
+
             s.g = c.getContext('2d');
 
             s.clear();
@@ -551,7 +568,7 @@
             this.$.val(this.v);
             this.w2 = this.o.width / 2;
             this.cursorExt = this.o.cursor / 100;
-            this.xy = this.w2;
+            this.xy = this.w2 * this.scale;
             this.lineWidth = this.xy * this.o.thickness;
             this.lineCap = this.o.lineCap;
             this.radius = this.xy - this.lineWidth / 2;

From bc468f9540e507e6ba557bc754e1355d9d7f4f9d Mon Sep 17 00:00:00 2001
From: fadomire 
Date: Tue, 27 Aug 2013 09:54:13 +0200
Subject: [PATCH 29/83] excanvas support for IE7/8 compatibility

added excanvas support code from @buradleix https://github.com/buradleix/jQuery-Knob/
---
 js/jquery.knob.js | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/js/jquery.knob.js b/js/jquery.knob.js
index ae36b6b..a0b4729 100644
--- a/js/jquery.knob.js
+++ b/js/jquery.knob.js
@@ -150,10 +150,15 @@
 
             (!this.o.displayInput) && this.$.hide();
 
-            this.$c = $('');
+            this.$c = $(document.createElement('canvas')).attr({
+              width: this.o.width,
+              height: this.o.height
+            });
             
+            if (typeof G_vmlCanvasManager !== 'undefined') {
+              G_vmlCanvasManager.initElement(this.$c[0]);
+            }
+
             this.c = this.$c[0].getContext? this.$c[0].getContext('2d') : null;
 			
             if (!this.c) {
@@ -209,13 +214,9 @@
         this._draw = function () {
 
             // canvas pre-rendering
-            var d = true,
-                c = document.createElement('canvas');
-
-            c.width = s.o.width * s.scale;
-            c.height = s.o.height * s.scale;
+            var d = true;
 
-            s.g = c.getContext('2d');
+            s.g = s.c;
 
             s.clear();
 
@@ -224,8 +225,6 @@
 
             (d !== false) && s.draw();
 
-            s.c.drawImage(c, 0, 0);
-            c = null;
         };
 
         this._touch = function (e) {
@@ -682,4 +681,4 @@
         ).parent();
     };
 
-})(jQuery);
\ No newline at end of file
+})(jQuery);

From 6dca8a7a79ade47c70835b06b2509ce688ecd3b9 Mon Sep 17 00:00:00 2001
From: root 
Date: Mon, 2 Sep 2013 22:13:19 +0200
Subject: [PATCH 30/83] font and fontWeight support #100 @kylestetz @asnyder

---
 README.md         |  0
 index.html        |  0
 js/jquery.knob.js | 10 ++++++----
 knob.jquery.json  |  0
 4 files changed, 6 insertions(+), 4 deletions(-)
 mode change 100644 => 100755 README.md
 mode change 100644 => 100755 index.html
 mode change 100644 => 100755 js/jquery.knob.js
 mode change 100644 => 100755 knob.jquery.json

diff --git a/README.md b/README.md
old mode 100644
new mode 100755
diff --git a/index.html b/index.html
old mode 100644
new mode 100755
diff --git a/js/jquery.knob.js b/js/jquery.knob.js
old mode 100644
new mode 100755
index a0b4729..79b4f0e
--- a/js/jquery.knob.js
+++ b/js/jquery.knob.js
@@ -48,7 +48,7 @@
         this.o = null; // array of options
         this.$ = null; // jQuery wrapped element
         this.i = null; // mixed HTMLInputElement or array of HTMLInputElement
-        this.g = null; // 2D graphics context for 'pre-rendering'
+        this.g = null; // deprecated 2D graphics context for 'pre-rendering'
         this.v = null; // value ; mixed array or integer
         this.cv = null; // change value ; not commited value
         this.x = 0; // canvas x position
@@ -100,6 +100,8 @@
                     displayPrevious : this.$.data('displayprevious'),
                     fgColor : this.$.data('fgcolor') || '#87CEEB',
                     inputColor: this.$.data('inputcolor') || this.$.data('fgcolor') || '#87CEEB',
+                    font: this.$.data('font') || 'Arial',
+                    fontWeight: this.$.data('font-weight') || 'bold',
                     inline : false,
                     step : this.$.data('step') || 1,
 
@@ -154,13 +156,13 @@
               width: this.o.width,
               height: this.o.height
             });
-            
+
             if (typeof G_vmlCanvasManager !== 'undefined') {
               G_vmlCanvasManager.initElement(this.$c[0]);
             }
 
             this.c = this.$c[0].getContext? this.$c[0].getContext('2d') : null;
-			
+
             if (!this.c) {
                 this.o.error && this.o.error();
                 return;
@@ -602,7 +604,7 @@
                         ,'margin-left' : '-' + ((this.o.width * 3 / 4 + 2) >> 0) + 'px'
                         ,'border' : 0
                         ,'background' : 'none'
-                        ,'font' : 'bold ' + ((this.o.width / s) >> 0) + 'px Arial'
+                        ,'font' : this.o.fontWeight + ' ' + ((this.o.width / s) >> 0) + 'px ' + this.o.font
                         ,'text-align' : 'center'
                         ,'color' : this.o.inputColor || this.o.fgColor
                         ,'padding' : '0px'
diff --git a/knob.jquery.json b/knob.jquery.json
old mode 100644
new mode 100755

From ac5e0b8d478b2b17ed22e40849c4801b49db7e15 Mon Sep 17 00:00:00 2001
From: root 
Date: Mon, 2 Sep 2013 22:18:03 +0200
Subject: [PATCH 31/83] font and fontWeight support #100 @kylestetz @asnyder

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index 2b33108..8c6dd33 100755
--- a/README.md
+++ b/README.md
@@ -50,6 +50,8 @@ UI :
 * displayPrevious : default=false | true=displays the previous value with transparency.
 * fgColor : foreground color.
 * inputColor : input value (number) color.
+* font : font family.
+* fontWeight : font weight.
 * bgColor : background color.
 
 Hooks

From e83f4fb9f92837caa6402eac72ccf5480fe0970a Mon Sep 17 00:00:00 2001
From: root 
Date: Fri, 13 Sep 2013 01:01:18 +0200
Subject: [PATCH 32/83] First implem of responsive support #98

---
 index.html        |  18 ++++++++
 js/jquery.knob.js | 106 ++++++++++++++++++++++++++++++++++------------
 2 files changed, 98 insertions(+), 26 deletions(-)

diff --git a/index.html b/index.html
index 67b1530..d003bb0 100755
--- a/index.html
+++ b/index.html
@@ -205,6 +205,24 @@ 
jQuery Knob