Draw String in Rectangle

[DavidG24]

hey guys,

I need to be able to create multiple Rectangles (no problems) and draw them onto a Panel (again no problem), the issue I have is that I want to be able to draw a String in each of the Rectangles and set the background colour of the Rectangle

How would I go about this?

Thanks in advance,

David

[OrangeDog]

Extend the class and override the painting method using Graphics.drawString().

Alternatively, JLabel/Label might be what you're looking for (but you'll have to switch from AWT to Swing to use JLabel.

[hardwired]

import java.awt.*;
import java.awt.font.*;
import java.awt.geom.AffineTransform;
import javax.swing.*;

public class TextRect extends JPanel {
    Rectangle[] rects = {
        new Rectangle( 60,  75, 100, 50),
        new Rectangle(100, 165, 200, 40),
        new Rectangle(165, 250, 150, 50)
    };
    String s = "hello world";

    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        Graphics2D g2 = (Graphics2D)g;
        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                            RenderingHints.VALUE_ANTIALIAS_ON);
        FontRenderContext frc = g2.getFontRenderContext();
        Font font = g2.getFont().deriveFont(16f);
        g2.setFont(font);
        float sw = (float)font.getStringBounds(s, frc).getWidth();
        LineMetrics lm = font.getLineMetrics(s, frc);
        float sh = lm.getAscent() + lm.getDescent();
        for(int i = 0; i < rects.length; i++) {
            Rectangle r = rects[i];
            g2.setPaint(Color.pink);
            g2.fill(r);
            g2.setPaint(Color.black);
            g2.draw(r);
            if(i < 2) {
                // center text in r
                float sx = r.x + (r.width - sw)/2;
                float sy = r.y + (r.height + sh)/2 - lm.getDescent();
                g2.drawString(s, sx, sy);
            } else {
                // scale text to fit and center in r
                double xScale = r.width/sw;
                double yScale = r.height/sh;
                double x = r.x + xScale*(r.width - xScale*sw)/2;
                double y = r.getMaxY() - yScale*lm.getDescent();
                AffineTransform at =
                    AffineTransform.getTranslateInstance(x, y);
                at.scale(xScale, yScale);
                g2.setFont(font.deriveFont(at));
                g2.drawString(s, 0, 0);
            }
        }
    }

    public static void main(String[] args) {
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.add(new TextRect());
        f.setSize(400,400);
        f.setLocation(100,100);
        f.setVisible(true);
    }
}

[DavidG24]

[SOLVED]
hey mate,

cheers for the code, really appreciate your help!

David