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

/**

> A QSplitter provides ability to let the user control the size between child widgets

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

### Example

```javascript
import { QSplitter, QWidget, QBoxLayout, Direction, Orientation } from "@vixen-js/core";

const rootView = new QWidget();
const rootLayout = new QBoxLayout(Direction.LeftToRight);
rootLayout.setSpacing(0);
rootView.setLayout(rootLayout);
rootView.setObjectName('myroot');

const splitterHorizontal = new QSplitter();
splitterHorizontal.setObjectName("splitterleft");
splitterHorizontal.setOrientation(Orientation.Horizontal);
const left = new QWidget();
left.setInlineStyle('background-color: red;');
const right = new QWidget();
right.setInlineStyle('background-color: yellow;');
rootView.layout!.addWidget(splitterHorizontal);
splitterHorizontal.addWidget(left);
splitterHorizontal.addWidget(right);
```

 */
export class QSplitter<
  Signals extends QSplitterSignals = QSplitterSignals
> extends QFrame<Signals> {
  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.QSplitter(parent.native);
    } else {
      native = new addon.QSplitter();
    }
    super(native);
  }
  addWidget(widget: QWidget): void {
    this.native?.addWidget(widget.native);
  }
  childrenCollapsible(): boolean {
    return this.native?.childrenCollapsible();
  }
  count(): number {
    return this.native?.count();
  }
  indexOf(widget: QWidget): number {
    return this.native?.indexOf(widget.native);
  }
  insertWidget(index: number, widget: QWidget): void {
    this.native?.insertWidget(index, widget.native);
  }
  isCollapsible(index: number): boolean {
    return this.native?.isCollapsible(index);
  }
  orientation(): Orientation {
    return this.native?.orientation();
  }
  setCollapsible(index: number, collapse: boolean): void {
    this.native?.setCollapsible(index, collapse);
  }
  setOrientation(orientation: Orientation): void {
    this.native?.setOrientation(orientation);
  }
}
wrapperCache.registerWrapper("QSplitterWrap", QSplitter);

export interface QSplitterSignals extends QFrameSignals {
  onSplitterMove: (pos: number, index: number) => void;
}