49 lines
1.0 KiB
Java
49 lines
1.0 KiB
Java
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var Util = require('../util/index');
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var Shape = require('../core/shape');
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var Circle = function Circle(cfg) {
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Circle.superclass.constructor.call(this, cfg);
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};
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Circle.ATTRS = {
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x: 0,
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y: 0,
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r: 0,
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lineWidth: 1
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};
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Util.extend(Circle, Shape);
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Util.augment(Circle, {
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canFill: true,
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canStroke: true,
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type: 'circle',
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getDefaultAttrs: function getDefaultAttrs() {
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return {
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lineWidth: 1
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};
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},
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calculateBox: function calculateBox() {
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var attrs = this._attrs;
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var cx = attrs.x;
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var cy = attrs.y;
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var r = attrs.r;
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var lineWidth = this.getHitLineWidth();
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var halfWidth = lineWidth / 2 + r;
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return {
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minX: cx - halfWidth,
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minY: cy - halfWidth,
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maxX: cx + halfWidth,
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maxY: cy + halfWidth
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};
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},
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createPath: function createPath(context) {
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var attrs = this._attrs;
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var cx = attrs.x;
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var cy = attrs.y;
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var r = attrs.r;
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context.beginPath();
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context.arc(cx, cy, r, 0, Math.PI * 2, false);
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context.closePath();
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}
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});
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module.exports = Circle;
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