All geek questions in one place

Java JLabel HTML display gets distorted when font conflicts with system font

UPDATED - the problem is now resolved in an ugly way - but should there be a proper way to do this?

I'm having trouble displaying text in a custom font in HTML in JLabel when the font name conflicts with the name of the font already installed on the system.

The system font is in a different format (otf vs ttf), so it is not surprising that the text is distorted.

The call to GraphicsEnvironment.getLocalGraphicsEnvironment().registerFont returns false to indicate that the font could not be registered. Therefore, I think the question is, is there a way to use this font without registering, or is there a way to rename it before registering?

Now I solved my problem by editing the ttf file and looking for the font name to make the conflict extremely unlikely, but I assume that there should be a proper way to handle this situation.

 package test; import java.awt.BorderLayout; import java.awt.Container; import java.awt.Font; import java.awt.FontFormatException; import java.awt.GraphicsEnvironment; import java.io.IOException; import java.io.InputStream; import javax.swing.JApplet; import javax.swing.JComponent; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.SwingUtilities; @SuppressWarnings("serial") class MyComponent extends JPanel { Font font; String text; public MyComponent(Font f) {font=f;} public void initSwing() { final String labelcontents = "<html><center>foo</center></html>"; System.out.println(labelcontents); JLabel text = new JLabel(labelcontents); text.setFont(font); add(text,BorderLayout.CENTER); } } @SuppressWarnings("serial") public class TestApplet extends JApplet { public void init() { Font mainFont = null; InputStream is = getClass().getResourceAsStream("fonts/Exo-Bold.ttf"); try { mainFont = Font.createFont(Font.TRUETYPE_FONT, is).deriveFont(24f); System.out.println(mainFont.getName()); boolean registered=GraphicsEnvironment.getLocalGraphicsEnvironment().registerFont(mainFont); System.out.println("registered "+registered); } catch (FontFormatException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } final Container fframe = (JComponent)(getContentPane()); final MyComponent component = new MyComponent(mainFont); Thread t = new Thread(new Runnable() { public void run() { try { SwingUtilities.invokeAndWait(new Runnable() {public void run() { fframe.add(component); component.initSwing(); fframe.revalidate(); fframe.repaint(); }}); } catch (Exception e) { e.printStackTrace(); } } }); t.start(); } }
+5
source share
2 answers

The text may contain HTML commands with encoding or one.

 String text1 = "<html><body>" + text.replace("&", "&amp;") .replace("<", "&lt;") .replace(">", "&gt;"); + "</body></html>";
+1
source

Very strange. When I run your applet app on my laptop, the output seems fine:

Excellent spelling screenshot

I used this zip file with the Exo-Bold.ttf file and am using Java 8 (version 1.8.0_65 from Oracle JDK) on Windows 8.1.

This is the adapted version of your code that I ran:

 import java.awt.*; import java.io.*; import javax.swing.*; @SuppressWarnings("serial") class MyComponent extends JPanel { Font font; String text; public MyComponent(Font f) {font=f;} public void initSwing() { final String labelcontents = "<html><center>foo</center></html>"; System.out.println(labelcontents); JLabel text = new JLabel(labelcontents); text.setFont(font); add(text,BorderLayout.CENTER); } } @SuppressWarnings("serial") public class TestApplet extends JApplet { public void init() { Font mainFont = null; try { //InputStream is = getClass().getResourceAsStream("fonts/Exo-Bold.ttf"); InputStream is = new FileInputStream("C:/Freek/[...]/Exo-Bold.ttf"); mainFont = Font.createFont(Font.TRUETYPE_FONT, is) .deriveFont(Font.BOLD, 24f); is.close(); System.out.println(mainFont.getName()); boolean result = GraphicsEnvironment.getLocalGraphicsEnvironment() .registerFont(mainFont); System.out.println("Result registerFont: " + result); } catch (FontFormatException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } final Container fframe = (JComponent)(getContentPane()); final MyComponent component = new MyComponent(mainFont); Thread t = new Thread(new Runnable() { public void run() { try { SwingUtilities.invokeAndWait(new Runnable() {public void run() { fframe.add(component); component.initSwing(); fframe.revalidate(); fframe.repaint(); }}); } catch (Exception e) { e.printStackTrace(); } } }); t.start(); } }
+1
source

Source: https://habr.com/ru/post/1236999/

More articles:


All Articles