Neville Ausgetauscht + PDF

src/lib/pdf/elements/Text.ts

@@ -0,0 +1,61 @@
+import { PDFPage, PDFFont, rgb, RGB } from 'pdf-lib';
+import { PDFElement, Size } from './PDFElement.js';
+import { Margin, Padding } from './Layout.js';
+
+export interface TextOptions {
+  font: PDFFont;
+  fontSize?: number;
+  color?: RGB;
+	margin?: Margin,
+	padding?: Padding,
+	lineHeight?: number
+}
+
+export class Text extends PDFElement {
+  private content: string;
+  private font: PDFFont;
+  private fontSize: number;
+  private color: RGB;
+	private options: TextOptions
+
+	protected _width: number;
+	protected _height: number;
+
+	public padding: Padding
+	public margin: Margin
+
+  constructor(content: string, options: TextOptions) {
+    super();
+    this.content = content;
+    this.font = options.font;
+    this.fontSize = options.fontSize ?? 12;
+    this.color = options.color ?? rgb(0, 0, 0);
+    this._width = this.font.widthOfTextAtSize(content, this.fontSize);
+    this._height = options.lineHeight || this.font.heightAtSize(this.fontSize);
+		this.options = options;
+		this.margin = this.options.margin || { top: 0, left: 0, right: 0, bottom: 0}
+		this.padding = this.options.padding || { top: 0, left: 0, right: 0, bottom: 0}
+  }
+
+	addChild(...children: PDFElement[]): void {
+		throw new Error("Cannot add child element to Text")
+	}
+
+	get height() {
+		return this._height + this.padding.top + this.padding.bottom;
+	}
+
+	get width() {
+		return this._width + this.padding.left + this.padding.right;
+	}
+
+  draw(page: PDFPage, x: number, y: number): void {
+    page.drawText(this.content, {
+      x: x + this.margin.left + this.padding.left,
+      y: y - this.height - this.margin.top - this.padding.top,
+      size: this.fontSize,
+      font: this.font,
+      color: this.color
+    });
+  }
+}