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85 lines
2.6 KiB
85 lines
2.6 KiB
import NodeBase from '../util/NodeBase'
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/**
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* Base class for constructing Node/Cluster Shapes.
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*
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* @extends NodeBase
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*/
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class ShapeBase 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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}
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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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* @param {Object} [values={size: this.options.size}]
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*/
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resize(ctx, selected = this.selected, hover = this.hover, values = { size: this.options.size }) {
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if (this.needsRefresh(selected, hover)) {
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this.labelModule.getTextSize(ctx, selected, hover);
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var size = 2 * values.size;
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this.width = size;
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this.height = size;
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this.radius = 0.5*this.width;
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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 {string} shape
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* @param {number} sizeMultiplier - Unused! TODO: Remove next major release
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* @param {number} x
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* @param {number} y
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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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* @private
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*/
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_drawShape(ctx, shape, sizeMultiplier, x, y, selected, hover, values) {
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this.resize(ctx, selected, hover, values);
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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[shape](x, y, values.size);
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this.performFill(ctx, values);
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if (this.options.label !== undefined) {
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// Need to call following here in order to ensure value for `this.labelModule.size.height`
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this.labelModule.calculateLabelSize(ctx, selected, hover, x, y, 'hanging')
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let yLabel = y + 0.5 * this.height + 0.5 * this.labelModule.size.height;
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this.labelModule.draw(ctx, x, yLabel, selected, hover, 'hanging');
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}
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this.updateBoundingBox(x,y);
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}
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/**
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*
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* @param {number} x
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* @param {number} y
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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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if (this.options.label !== undefined && this.labelModule.size.width > 0) {
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this.boundingBox.left = Math.min(this.boundingBox.left, this.labelModule.size.left);
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this.boundingBox.right = Math.max(this.boundingBox.right, this.labelModule.size.left + this.labelModule.size.width);
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this.boundingBox.bottom = Math.max(this.boundingBox.bottom, this.boundingBox.bottom + this.labelModule.size.height);
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}
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}
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}
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export default ShapeBase;
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