vis.js is a dynamic, browser-based visualization library
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'use strict';
import NodeBase from '../util/NodeBase'
class Text extends NodeBase {
constructor(options, body, labelModule) {
super(options, body, labelModule);
this._setMargins();
}
resize(ctx, selected) {
if (this.width === undefined) {
this.textSize = this.labelModule.getTextSize(ctx,selected);
this.width = this.textSize.width + this.margin.right + this.margin.left;
this.height = this.textSize.height + this.margin.top + this.margin.bottom;
this.radius = 0.5*this.width;
}
}
draw(ctx, x, y, selected, hover) {
this.resize(ctx, selected || hover);
this.left = x - this.width / 2;
this.top = y - this.height / 2;
// draw shadow if enabled
this.enableShadow(ctx);
this.labelModule.draw(ctx, this.left + this.textSize.width / 2 + this.margin.left,
this.top + this.textSize.height / 2 + this.margin.top, selected || hover);
// disable shadows for other elements.
this.disableShadow(ctx);
this.updateBoundingBox(x, y, ctx, selected);
}
updateBoundingBox(x, y, ctx, selected) {
this.resize(ctx, selected);
this.left = x - this.width / 2;
this.top = y - this.height / 2;
this.boundingBox.top = this.top;
this.boundingBox.left = this.left;
this.boundingBox.right = this.left + this.width;
this.boundingBox.bottom = this.top + this.height;
}
distanceToBorder(ctx, angle) {
return this._distanceToBorder(ctx,angle);
}
}
export default Text;