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56 lines
1.5 KiB
56 lines
1.5 KiB
'use strict';
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import CircleImageBase from '../util/CircleImageBase'
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class Circle extends CircleImageBase {
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constructor(options, body, labelModule) {
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super(options, body, labelModule)
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}
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resize(ctx, selected) {
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if (this.width === undefined) {
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var margin = 5;
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var textSize = this.labelModule.getTextSize(ctx, selected);
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var diameter = Math.max(textSize.width, textSize.height) + 2 * margin;
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this.options.size = diameter / 2;
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this.width = diameter;
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this.height = diameter;
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this.radius = 0.5*this.width;
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}
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}
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draw(ctx, x, y, selected, hover) {
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this.resize(ctx, selected);
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this.left = x - this.width / 2;
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this.top = y - this.height / 2;
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this._drawRawCircle(ctx, x, y, selected, hover, this.options.size);
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this.boundingBox.top = y - this.options.size;
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this.boundingBox.left = x - this.options.size;
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this.boundingBox.right = x + this.options.size;
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this.boundingBox.bottom = y + this.options.size;
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this.updateBoundingBox(x,y);
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this.labelModule.draw(ctx, x, y, selected);
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}
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updateBoundingBox(x,y) {
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this.boundingBox.top = y - this.options.size;
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this.boundingBox.left = x - this.options.size;
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this.boundingBox.right = x + this.options.size;
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this.boundingBox.bottom = y + this.options.size;
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}
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distanceToBorder(ctx, angle) {
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this.resize(ctx);
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var a = this.width / 2;
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var b = this.height / 2;
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var w = (Math.sin(angle) * a);
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var h = (Math.cos(angle) * b);
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return a * b / Math.sqrt(w * w + h * h);
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}
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}
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export default Circle;
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