Improving zoom in/out.

sources/scripts/layers/grid.js

@@ -1,44 +0,0 @@
-function Grid()
-{
-  Layer.call(this);
-
-  this.el.id = "grid";
-
-  this.draw = function(size = 60, step = 5)
-  {
-    this.clear();
-    
-    var x = 1;
-    var size = size * 2;
-    while(x < this.el.width/size){
-      var y = 1;
-      while(y < (this.el.height/size)-1){
-        var is_marker = (x % step == 0 && y % step == 0)
-        this.draw_vertex(x * size,y * size,is_marker)
-        y += 1;
-      }
-      x += 1;
-    }
-  }
-
-  this.draw_vertex = function(x,y,is_marker)
-  {
-    var ctx = this.context();
-    var r = 1.5;
-    ctx.beginPath();
-    ctx.arc(x, y, 1.5, 0, 2 * Math.PI, false);
-    ctx.fillStyle = is_marker ? '#000' : '#ccc';
-    ctx.fill();
-    ctx.closePath();
-  }
-
-  this.resize_to = function(size)
-  {
-    this.el.width = size.width * 2;
-    this.el.height = size.height * 2;
-    this.el.style.width = size.width+"px";
-    this.el.style.height = size.height+"px";
-
-    this.draw();
-  }
-}

sources/scripts/layers/preview.js

@@ -1,6 +0,0 @@
-function Preview()
-{
-  Layer.call(this);
-  
-  this.el.id = "preview";
-}