Mirrors/webamp
1
0
Fork 0
mirror of https://github.com/captbaritone/webamp.git synced 2026-07-25 11:04:00 +00:00
Code Issues Projects Releases Wiki Activity

Render visualization background

Browse source
This commit is contained in:
Jordan Eldredge 2014-12-03 16:47:58 -08:00
parent b619dacd87
commit d8347a376d
2 changed files with 24 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

21
visualizer.js
View file

@ -15,6 +15,12 @@ Visualizer = {
this.dataArray = null;
this.setStyle(this.BAR);
// Off-screen canvas for pre-rendering the background
this.bgCanvas = document.createElement('canvas');
this.bgCanvas.width = this.width;
this.bgCanvas.height = this.height;
this.bgCanvasCtx = this.bgCanvas.getContext("2d");
// Off-screen canvas for pre-rendering a single bar gradient
this.barCanvas = document.createElement('canvas');
this.barCanvas.width = 6;
@ -24,14 +30,27 @@ Visualizer = {
},
clear: function() {
this.canvasCtx.clearRect(0, 0, this.width, this.height);
this.canvasCtx.drawImage(this.bgCanvas, 0, 0);
},
setColors: function(colors) {
this.colors = colors;
this.preRenderBg();
this.preRenderBar();
},
// Pre-render the background grid
preRenderBg: function() {
this.bgCanvasCtx.fillStyle = this.colors[0];
this.bgCanvasCtx.fillRect(0,0,this.width, this.height);
this.bgCanvasCtx.fillStyle = this.colors[1];
for(x = 0; x < this.width; x += 4) {
for(y = 0; y < this.height; y += 4) {
this.bgCanvasCtx.fillRect(x,y,2,2);
}
}
},
// Pre-render the bar gradient
preRenderBar: function() {
this.barCanvasCtx.fillStyle = this.colors[23];

4
winamp.css
View file

@ -227,6 +227,10 @@ a:focus { outline: none; }
left: 24px;
}
.stop #visualizer {
display: none;
}
.text {
position: absolute;