library/js/literallycanvas/js/tools/Pencil.js

   1 var Pencil, ToolWithStroke, createShape,
   2   extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
   3   hasProp = {}.hasOwnProperty;
   4
   5 ToolWithStroke = require('./base').ToolWithStroke;
   6
   7 createShape = require('../core/shapes').createShape;
   8
   9 module.exports = Pencil = (function(superClass) {
  10   extend(Pencil, superClass);
  11
  12   function Pencil() {
  13     return Pencil.__super__.constructor.apply(this, arguments);
  14   }
  15
  16   Pencil.prototype.name = 'Pencil';
  17
  18   Pencil.prototype.iconName = 'pencil';
  19
  20   Pencil.prototype.eventTimeThreshold = 10;
  21
  22   Pencil.prototype.begin = function(x, y, lc) {
  23     this.color = lc.getColor('primary');
  24     this.currentShape = this.makeShape();
  25     this.currentShape.addPoint(this.makePoint(x, y, lc));
  26     return this.lastEventTime = Date.now();
  27   };
  28
  29   Pencil.prototype["continue"] = function(x, y, lc) {
  30     var timeDiff;
  31     timeDiff = Date.now() - this.lastEventTime;
  32     if (timeDiff > this.eventTimeThreshold) {
  33       this.lastEventTime += timeDiff;
  34       this.currentShape.addPoint(this.makePoint(x, y, lc));
  35       return lc.drawShapeInProgress(this.currentShape);
  36     }
  37   };
  38
  39   Pencil.prototype.end = function(x, y, lc) {
  40     lc.saveShape(this.currentShape);
  41     return this.currentShape = void 0;
  42   };
  43
  44   Pencil.prototype.makePoint = function(x, y, lc) {
  45     return createShape('Point', {
  46       x: x,
  47       y: y,
  48       size: this.strokeWidth,
  49       color: this.color
  50     });
  51   };
  52
  53   Pencil.prototype.makeShape = function() {
  54     return createShape('LinePath');
  55   };
  56
  57   return Pencil;
  58
  59 })(ToolWithStroke);