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Support for apple devices with retina displays. #12

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Support for apple devices with retina displays. #12

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0a1dad8
Support for apple devices with retina displays.
russellmcc Mar 6, 2013
108fe06
oops! fix for a bug where the bars wouldn't clear correctly due to t…
russellmcc Mar 6, 2013
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21 changes: 13 additions & 8 deletions js/jquery.kontrol.js
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Original file line number Diff line number Diff line change
Expand Up @@ -56,6 +56,7 @@
this.y = 0; // canvas y position
this.mx = 0; // x value of mouse down point of the current mouse move
this.my = 0; // y value of mouse down point of the current mose move
this.r = 1; // cached devicePixelRatio
this.$c = null; // jQuery canvas element
this.c = null; // rendered canvas context
this.t = 0; // touches index
Expand Down Expand Up @@ -152,9 +153,12 @@

(!this.o.displayInput) && this.$.hide();

this.r = window.devicePixelRatio || 1;
this.$c = $('<canvas width="' +
this.o.width + 'px" height="' +
this.o.height + 'px"></canvas>');
this.o.width*this.r + 'px" height="' +
this.o.height*this.r + 'px" style="width:'+
this.o.width + 'px;height:' + this.o.height +
'px;"></canvas>');
this.c = this.$c[0].getContext("2d");

this.$
Expand Down Expand Up @@ -193,11 +197,12 @@
var d = true,
c = document.createElement('canvas');

c.width = s.o.width;
c.height = s.o.height;
c.width = s.o.width*s.r;
c.height = s.o.height*s.r;
s.g = c.getContext('2d');

s.clear();
s.g.scale(s.r, s.r);

s.dH
&& (d = s.dH());
Expand Down Expand Up @@ -988,10 +993,10 @@
if (this.col) {
// current col
this.c.clearRect(
this.col * (this.colWidth + this.o.spacing)
this.col * (this.colWidth + this.o.spacing) * this.r
, 0
, this.colWidth + this.o.spacing
, this.o.height
, (this.colWidth + this.o.spacing) * this.r
, this.o.height * this.r
);
} else {
this._clear();
Expand Down