readme.md

How to draw text on image using Graphics with text alignment.

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You may go further at : https://docs.aspose.com/imaging/java/drawing-images-using-graphics/#drawing-text-on-images-using-graphics

draw-text-using-graphics.java

import com.aspose.imaging.*;
import com.aspose.imaging.brushes.SolidBrush;
import com.aspose.imaging.imageoptions.PngOptions;
import com.aspose.imaging.sources.FileCreateSource;

String templatesFolder = "c:\\Users\\USER\\Downloads\\";

System.out.println("Running example PixelPerfectTextAlignment");

String[] alignments = {"Left", "Center", "Right"};
for (String alignment : alignments)
{
	drawString(templatesFolder, alignment);
}

System.out.println("Finished example PixelPerfectTextAlignment");

private static void drawString(String baseFolder, String align)
{
	String fileName = "output_" + align + ".png";
	String outputFileName = baseFolder + fileName;
	String[] fontNames =
			{
					"Arial", "Times New Roman",
					"Bookman Old Style", "Calibri", "Comic Sans MS",
					"Courier New", "Microsoft Sans Serif", "Tahoma",
					"Verdana", "Proxima Nova Rg"
			};

	float[] fontSizes = { 10f, 22f, 50f, 100f };
	int width = 3000;
	int height = 3500;

	//Create an instance of PngOptions and set its various properties
	try (PngOptions pngOptions = new PngOptions())
	{
		//Set the Source for PngOptions
		pngOptions.setSource(new FileCreateSource(outputFileName));

		//Create an instance of Image
		try (Image image = Image.create(pngOptions, width, height))
		{
			//Create and initialize an instance of Graphics class
			Graphics graphics = new Graphics(image);
			graphics.beginUpdate();

			//Clear Graphics surface
			graphics.clear(Color.getWhite());

			//Create a SolidBrush object and set its various properties
			SolidBrush brush = new SolidBrush();
			brush.setColor(Color.getBlack());
			float x = 10;
			int lineX;
			float y = 10;
			float w = width - 20;
			Pen pen = new Pen(Color.getRed(), 1);

			int alignment;
			switch (align)
			{
				case "Left":
					alignment = StringAlignment.Near;
					lineX = Math.round(x);
					break;

				case "Center":
					alignment = StringAlignment.Center;
					lineX = Math.round(x + w / 2f);
					break;

				case "Right":
					alignment = StringAlignment.Far;
					lineX = (int) (x + w);
					break;

				default:
					throw new IllegalArgumentException("Unknown alignment: " + align);
			}

			StringFormat stringFormat = new StringFormat(StringFormatFlags.ExactAlignment);
			stringFormat.setAlignment(alignment);
			for (String fontName : fontNames)
			{
				for (float fontSize : fontSizes)
				{
					Font font = new Font(fontName, fontSize);
					String text = String.format("This is font: %s, size:%d", fontName, (int) fontSize);
					SizeF s = graphics.measureString(text, font, SizeF.getEmpty(), null);
					graphics.drawString(text, font, brush, new RectangleF(x, y, w, s.getHeight()), stringFormat);

					y += s.getHeight();
				}

				graphics.drawLine(pen, new Point((int) (x), (int) y), new Point((int) (x + w), (int) y));
			}

			graphics.drawLine(pen, new Point(lineX, 0), new Point(lineX, (int) y));

			// save all changes.
			image.save();
		}
	}
}