1bc346d22c
* Add `clearFocus()` to `QWidget` * Add `Alignment` param to `QBoxLayout.addWidget()` * Add `setViewportMargins()` & `viewportMargins()` to `QScrollArea` * Add `QEvent` methods to all event related subclasses * Tell C++ that our 0 is zero and not a null pointer
103 lines
3.3 KiB
TypeScript
103 lines
3.3 KiB
TypeScript
import addon from '../utils/addon';
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import { NodeWidget } from './QWidget';
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import { NativeElement } from '../core/Component';
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import { QAbstractScrollArea, QAbstractScrollAreaSignals } from './QAbstractScrollArea';
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import { AlignmentFlag } from '../QtEnums';
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import { Margins } from '../utils/Margins';
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/**
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> A `QScrollArea` provides a scrolling view onto another widget.
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* **This class is a JS wrapper around Qt's [QScrollArea class](https://doc.qt.io/qt-5/qscrollarea.html)**
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### Example
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```javascript
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const { QScrollArea } = require("@nodegui/nodegui");
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const scrollArea = new QScrollArea();
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scrollArea.setInlineStyle("flex: 1; width:'100%';");
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const imageLabel = new QLabel();
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const pixmap = new QPixmap(
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path.resolve(__dirname, "../extras/assets/kitchen.png")
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);
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imageLabel.setPixmap(pixmap);
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scrollArea.setWidget(imageLabel);
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```
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*/
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export class QScrollArea extends QAbstractScrollArea<QScrollAreaSignals> {
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native: NativeElement;
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contentWidget?: NodeWidget<any> | null;
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constructor();
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constructor(parent: NodeWidget<any>);
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constructor(parent?: NodeWidget<any>) {
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let native;
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if (parent) {
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native = new addon.QScrollArea(parent.native);
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} else {
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native = new addon.QScrollArea();
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}
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super(native);
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this.native = native;
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this.setNodeParent(parent);
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}
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setAlignment(alignment: AlignmentFlag): void {
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this.setProperty('alignment', alignment);
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}
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alignment(): AlignmentFlag {
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return this.property('alignment').toInt();
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}
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setWidgetResizable(resizable: boolean): void {
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this.setProperty('widgetResizable', resizable);
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}
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widgetResizable(): boolean {
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return this.property('widgetResizable').toBool();
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}
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ensureVisible(x: number, y: number, xmargin = 50, ymargin = 50): void {
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this.native.ensureVisible(x, y, xmargin, ymargin);
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}
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ensureWidgetVisible(childWidget: NodeWidget<any>, xmargin = 50, ymargin = 50): void {
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this.native.ensureWidgetVisible(childWidget.native, xmargin, ymargin);
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}
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setWidget(widget: NodeWidget<any>): void {
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this.contentWidget = widget;
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this.native.setWidget(widget.native);
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}
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widget(): NodeWidget<any> | null {
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if (this.contentWidget) {
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return this.contentWidget;
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}
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return null;
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}
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takeWidget(): NodeWidget<any> | null {
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// react:✓
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const contentWidget = this.contentWidget;
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this.contentWidget = null;
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if (contentWidget) {
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this.native.takeWidget();
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return contentWidget;
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}
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return null;
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}
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setViewportMargins(left: number, top: number, right: number, bottom: number): void {
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// Technically part of QAbstractScrollArea, but the C++ side has subclass specific
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// code needed, and setViewportMargins() isn't implemented yet for all of the
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// subclasses.
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this.native.setViewportMargins(left, top, right, bottom);
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}
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viewportMargins(): Margins {
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const marginsArray = this.native.viewportMargins();
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return {
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left: marginsArray[0],
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top: marginsArray[1],
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right: marginsArray[2],
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bottom: marginsArray[3],
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};
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}
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}
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export type QScrollAreaSignals = QAbstractScrollAreaSignals;
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