import NodeBase from '../util/NodeBase' class ShapeBase extends NodeBase { constructor(options, body, labelModule) { super(options, body, labelModule) } _resizeShape(selected = this.selected, hover = this.hover, values = { size: this.options.size }) { if (this.needsRefresh(selected, hover)) { var size = 2 * values.size; this.width = size; this.height = size; this.radius = 0.5*this.width; } } _drawShape(ctx, shape, sizeMultiplier, x, y, selected, hover, values) { this._resizeShape(selected, hover, values); this.left = x - this.width / 2; this.top = y - this.height / 2; var borderWidth = values.borderWidth / this.body.view.scale; ctx.lineWidth = Math.min(this.width, borderWidth); ctx.strokeStyle = values.borderColor; ctx.fillStyle = values.color; ctx[shape](x, y, values.size); // draw shadow if enabled this.enableShadow(ctx, values); // draw the background ctx.fill(); // disable shadows for other elements. this.disableShadow(ctx, values); //draw dashed border if enabled, save and restore is required for firefox not to crash on unix. ctx.save(); // if borders are zero width, they will be drawn with width 1 by default. This prevents that if (borderWidth > 0) { this.enableBorderDashes(ctx, values); //draw the border ctx.stroke(); //disable dashed border for other elements this.disableBorderDashes(ctx, values); } ctx.restore(); if (this.options.label !== undefined) { let yLabel = y + 0.5 * this.height + 3; // the + 3 is to offset it a bit below the node. this.labelModule.draw(ctx, x, yLabel, selected, hover, 'hanging'); } this.updateBoundingBox(x,y); } updateBoundingBox(x,y) { this.boundingBox.top = y - this.options.size; this.boundingBox.left = x - this.options.size; this.boundingBox.right = x + this.options.size; this.boundingBox.bottom = y + this.options.size; if (this.options.label !== undefined && this.labelModule.size.width > 0) { this.boundingBox.left = Math.min(this.boundingBox.left, this.labelModule.size.left); this.boundingBox.right = Math.max(this.boundingBox.right, this.labelModule.size.left + this.labelModule.size.width); this.boundingBox.bottom = Math.max(this.boundingBox.bottom, this.boundingBox.bottom + this.labelModule.size.height + 3); } } } export default ShapeBase;