import addon from "../utils/addon";
import { QWidget } from "./QWidget";
import { QLayout, QLayoutSignals } from "./QLayout";
import { NativeElement } from "../core/Component";
import { AlignmentFlag, Direction } from "../QtEnums";
import { checkIfNativeElement } from "../utils/helpers";
import { wrapperCache } from "../core/WrapperCache";

/**

> Lines up child widgets horizontally or vertically.

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

### Example

```javascript
// This example arranges two calendars horizontally.

const { QBoxLayout, QCalendarWidget } from "@vixen-js/core";

const centralWidget = new QWidget();
const boxLayout = new QBoxLayout(0);

boxLayout.addWidget(new QCalendarWidget());
boxLayout.addWidget(new QCalendarWidget());
centralWidget.setLayout(boxLayout);
```
 */
export class QBoxLayout extends QLayout<QBoxLayoutSignals> {
  constructor(arg: NativeElement | Direction, parent?: QWidget) {
    let native: NativeElement;
    if (checkIfNativeElement(arg)) {
      native = arg as NativeElement;
    } else if (parent) {
      native = new addon.QBoxLayout(arg as Direction, parent.native);
    } else {
      native = new addon.QBoxLayout(arg as Direction);
    }
    super(native);
  }
  addLayout(layout: QLayout, stretch = 0): void {
    this.native?.addLayout(layout.native, stretch);
  }
  addSpacing(size: number): void {
    this.native?.addSpacing(size);
  }
  addStretch(stretch = 0): void {
    this.native?.addStretch(stretch);
  }
  addStrut(size: number): void {
    this.native?.addStrut(size);
  }
  addWidget(widget: QWidget, stretch = 0, alignment: AlignmentFlag = 0): void {
    this.native?.addWidget(widget.native, stretch, alignment);
  }
  insertWidget(index: number, widget: QWidget, stretch = 0): void {
    this.native?.insertWidget(index, widget.native, stretch);
  }
  direction(): Direction {
    return this.native?.direction();
  }
  insertLayout(index: number, layout: QLayout, stretch = 0): void {
    this.native?.insertLayout(index, layout.native, stretch);
  }
  insertSpacing(index: number, size: number): void {
    this.native?.insertSpacing(index, size);
  }
  insertStretch(index: number, stretch = 0): void {
    this.native?.insertStretch(index, stretch);
  }
  removeWidget(widget: QWidget): void {
    this.native?.removeWidget(widget.native);
  }
  setDirection(dir: Direction): void {
    this.native?.setDirection(dir);
  }
  setStretch(index: number, stretch: number): void {
    this.native?.setStretch(index, stretch);
  }
  count(): number {
    return this.native?.count();
  }
}
wrapperCache.registerWrapper("QBoxLayoutWrap", QBoxLayout);

export type QBoxLayoutSignals = QLayoutSignals;