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91 lines
2.4 KiB
91 lines
2.4 KiB
'use strict';
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import NodeBase from '../util/NodeBase'
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/**
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* A Box Node/Cluster shape.
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*
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* @extends NodeBase
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*/
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class Box extends NodeBase {
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/**
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* @param {Object} options
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* @param {Object} body
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* @param {Label} labelModule
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*/
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constructor (options, body, labelModule) {
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super(options,body,labelModule);
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this._setMargins(labelModule);
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}
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/**
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*
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* @param {CanvasRenderingContext2D} ctx
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* @param {boolean} [selected]
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* @param {boolean} [hover]
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*/
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resize(ctx, selected = this.selected, hover = this.hover) {
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if (this.needsRefresh(selected, hover)) {
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var dimensions = this.getDimensionsFromLabel(ctx, selected, hover);
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this.width = dimensions.width + this.margin.right + this.margin.left;
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this.height = dimensions.height + this.margin.top + this.margin.bottom;
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this.radius = this.width / 2;
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}
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}
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/**
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*
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* @param {CanvasRenderingContext2D} ctx
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* @param {number} x width
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* @param {number} y height
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* @param {boolean} selected
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* @param {boolean} hover
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* @param {ArrowOptions} values
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*/
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draw(ctx, x, y, selected, hover, values) {
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this.resize(ctx, selected, hover);
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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.initContextForDraw(ctx, values);
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ctx.roundRect(this.left, this.top, this.width, this.height, values.borderRadius);
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this.performFill(ctx, values);
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this.updateBoundingBox(x, y, ctx, selected, hover);
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this.labelModule.draw(ctx, this.left + this.textSize.width / 2 + this.margin.left,
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this.top + this.textSize.height / 2 + this.margin.top, selected, hover);
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}
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/**
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*
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* @param {number} x width
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* @param {number} y height
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* @param {CanvasRenderingContext2D} ctx
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* @param {boolean} selected
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* @param {boolean} hover
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*/
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updateBoundingBox(x, y, ctx, selected, hover) {
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this._updateBoundingBox(x, y, ctx, selected, hover);
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let borderRadius = this.options.shapeProperties.borderRadius; // only effective for box
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this._addBoundingBoxMargin(borderRadius);
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}
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/**
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*
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* @param {CanvasRenderingContext2D} ctx
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* @param {number} angle
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* @returns {number}
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*/
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distanceToBorder(ctx, angle) {
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this.resize(ctx);
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let borderWidth = this.options.borderWidth;
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return Math.min(
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Math.abs((this.width) / 2 / Math.cos(angle)),
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Math.abs((this.height) / 2 / Math.sin(angle))) + borderWidth;
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}
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}
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export default Box;
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