import addon from "../utils/addon";
import { QWidget, QWidgetSignals } from "./QWidget";
import { NativeElement } from "../core/Component";
import { wrapperCache } from "../core/WrapperCache";
import { checkIfNativeElement } from "../utils/helpers";

/**

> Display SVG files in a widget.

* **This class is a JS wrapper around Qt's [QSvgWidget class](https://doc.qt.io/qt-5/qsvgwidget.html)**

The `QSvgWidget` class provides a widget that is used to display the contents of Scalable Vector Graphics (SVG) files.

### Example

```javascript
import fs from "fs";
import { QSvgWidget } from "@vixen-js/core";

const svg = new QSvgWidget();
svg.load("icon.svg");
// or
fs.readFile("icon.svg", (err, buffer) => {
  if (!err) svg.load(buffer);
})

```

 */
export class QSvgWidget extends QWidget<QWidgetSignals> {
  constructor(arg?: QWidget<QWidgetSignals> | NativeElement) {
    let native: NativeElement;
    if (checkIfNativeElement(arg)) {
      native = arg as NativeElement;
    } else if (arg != null) {
      const parent = arg as QWidget;
      native = new addon.QSvgWidget(parent.native);
    } else {
      native = new addon.QSvgWidget();
    }
    super(native);
  }
  load(file: string | Buffer): void {
    if (file instanceof Buffer) {
      this.native?.load("data:image/svg+xml;base64," + file.toString("base64"));
    } else {
      this.native?.load(file);
    }
  }
}
wrapperCache.registerWrapper("QSvgWidgetWrap", QSvgWidget);