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import { observer } from "mobx-react";
import { observable, trace } from "mobx";
import { InkingControl } from "./InkingControl";
import React = require("react");
import { InkTool } from "../../new_fields/InkField";
import "./InkingStroke.scss";
interface StrokeProps {
offsetX: number;
offsetY: number;
id: string;
count: number;
line: Array<{ x: number, y: number }>;
color: string;
width: string;
tool: InkTool;
deleteCallback: (index: string) => void;
}
@observer
export class InkingStroke extends React.Component<StrokeProps> {
@observable private _strokeTool: InkTool = this.props.tool;
@observable private _strokeColor: string = this.props.color;
@observable private _strokeWidth: string = this.props.width;
deleteStroke = (e: React.PointerEvent): void => {
if (InkingControl.Instance.selectedTool === InkTool.Eraser && e.buttons === 1) {
this.props.deleteCallback(this.props.id);
e.stopPropagation();
e.preventDefault();
}
}
parseData = (line: Array<{ x: number, y: number }>): string => {
return !line.length ? "" : "M " + line.map(p => (p.x + this.props.offsetX) + " " + (p.y + this.props.offsetY)).join(" L ");
}
createStyle() {
switch (this._strokeTool) {
// add more tool styles here
default:
return {
fill: "none",
stroke: this._strokeColor,
strokeWidth: this._strokeWidth + "px",
};
}
}
render() {
let pathStyle = this.createStyle();
let pathData = this.parseData(this.props.line);
let pathlength = this.props.count; // bcz: this is needed to force reactions to the line's data changes
let marker = this.props.tool === InkTool.Highlighter ? "-marker" : "";
let pointerEvents: any = InkingControl.Instance.selectedTool === InkTool.Eraser ? "all" : "none";
return (
<path className={`inkingStroke${marker}`} d={pathData} style={{ ...pathStyle, pointerEvents: pointerEvents }} strokeLinejoin="round" strokeLinecap="round"
onPointerOver={this.deleteStroke} onPointerDown={this.deleteStroke} />
);
}
}
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