AWT drawString doesn't work on Linux

[dishab]

Hi *,
I have a little program which lets me make an image from a string and write it in a file. It works well on my XP but on my Linux server only the background pink is generated but no text (see attachment) . I also tried to set the Font but it didn't help. Any Ideas?
Hier is the code:
public static void textToImage4() throws IOException {
int width = 200, height = 135;
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics g = image.getGraphics();

g.setColor(Color.pink);
g.fillRect(0, 0, width, height);

// Font font = new Font("SERIF", Font.BOLD, 18);
// g2.setFont(font);

g.setColor(Color.black);
g.drawString("test", 46 , 54);

g.dispose();

ImageIO.write(image, "jpg", new File("test.jpg"));
}
I run the program with: java -Djava.awt.headless=true ...

thanks,
dishab

[CaptainMorgan]

Welcome to the Java Forums!

Hmm... seems like an environment or local issue.. I run linux and it outputs this:

[CaptainMorgan]

What's your code look like? Here's what I did:

Code:

public class Test {
  public static void textToImage4() throws IOException {
    int width = 200, height = 135;
    BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    Graphics g = image.getGraphics();

    g.setColor(Color.pink);
    g.fillRect(0, 0, width, height);

    // Font font = new Font("SERIF", Font.BOLD, 18);
    // g2.setFont(font);

    g.setColor(Color.black);
    g.drawString("test", 46 , 54);

    g.dispose();

    ImageIO.write(image, "jpg", new File("test.jpg"));
  }
 
  public static void main(String[] args) {
    Test t = new Test();
    try { 
      t.textToImage4();
    } catch (IOException ioE) {
      ioE.printStackTrace();
    }
  }
}

[dishab]

At the moemnt there is only this piece of code:

public class PicTest {
public static void main(String[] args) throws IOException {
textToImage4();
}

public static void textToImage4() throws IOException {
// ... as already posted
}
}

When it works, I want to use it for creating captchas.
I tested it also on a solaris machine and it works as expected. Only not on my Linux Red hat!

[CaptainMorgan]

This doesn't appear to be a Java issue... but I've been wrong before.

[dishab]

I tried some more things but had still no success:

java -Dawt.toolkit=sun.awt.X11.XToolkit -Djava.awt.headless=true -cp . PicTest
java -Dawt.toolkit=sun.awt.motif.MToolkit -Djava.awt.headless=true -cp . PicTest

I also downloaded PJA and executed PJADemo. This program generated 3 images. Two of them are including different shapes and looking good. The third one, which should contain text, is only a white rectangle.

I have no fonts under /usr/X11R6/lib/X11/fonts/TrueTypes. Can this be the problem?
Thanks, Dishab

[dishab]

For those who may have a similar problem: I could solve the problem. The reason was,that I had no ttf fonts an my machine and the default jdk fonts had no glyps in them (I dont know if it was a installation failur or it is the default behavior of jdk_1.4).
So I cpoied a ttf file say xyz.ttf to my machine und loaded it dynamically:

Code:

   Font font = createFont(Font.TrueType, new InputStream(new File("xyz.ttf")));
   font = font.deriveFont(Font.BOLD, 14);
   g.setFont(font);

and got waht I wanted.