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Java-Swing: customize highlighted text color with HTML

I am having problems determining how to set the color of selected JList text using HTML.

Using Java Swing and HTML I managed to process specific sections of each line in a JList, my example looks like this:

enter image description here

This is ideal as I can set as many different colors as I want for each record!

However, when text is selected, only black text becomes white by default! The html-color text retains its color, but does not turn white, which leads to some rather difficult to read text for some colors:

enter image description here

How do I set the color of the text when choosing?

I tried using the JList setSelectionForeground (Color.WHITE) method in the JList, but it did not affect the text in the HTML text (although it did affect the text without HTML text)

Oracle HTML--Swing ( HTML), .

:

import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.UIManager;
import java.awt.Color;

public class JListSelectionColorTest extends JFrame {

    private String[] exampleText = {"Some example text without any color changes",
        "Some more example text without color changes",
        "Even more plain text!", 
        "<html>Uncolored Text! <font color=orange>Now some example Text with color!</font> more Uncolored Text!</html>", 
        "<html>Uncolored Text! <font color=green>And some more example text with color! Text, Text, Text!</font> more Uncolored Text!</html>",
        "<html>Uncolored Text! <font color=red>A string with red color, Text Text Text!</font> more Uncolored Text!</html>",
        "<html>Uncolored Text! <font color=blue>And finally a string with blue color, Text Text Text!</font> more Uncolored Text!</html>",
        "<html>Uncolored Text! <font color=purple><selection color=white>Testing if some html can turn the selection color white!</selection></font> more Uncolored Text!</html>"};

    public JListSelectionColorTest() {
        super("JList Selection Color Test");

        // Set the Look and Feel of the window to the Native System Look and Feel
        // (When using the default Look and Feel the problem still persists!)
        try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        } catch (Exception e) {
            e.printStackTrace();
        }

        // Create a JList of Strings containing the exampleText String array
        JList<String> exampleJList = new JList<String>(exampleText);

        // Set the JList text selection color to white
        exampleJList.setSelectionForeground(Color.WHITE); // This doesn't seem to affect the html-colored text selection foreground

        // Add the JList to the JFrame
        add(exampleJList);

        pack();
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLocationRelativeTo(null);
        setVisible(true);
    }
    public static void main(String[] args) {
        new JListSelectionColorTest();
    }
}
+4
1

ListCellRenderer, replaceAll (...), HTML . , HTML, , String , HTML, < >.

import javax.swing.DefaultListCellRenderer;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.UIManager;

import java.awt.Color;
import java.awt.Component;

public class JListSelectionColorTest extends JFrame {

   private String[] exampleText = {
         "Some example text without any color changes",
         "Some more example text without color changes",
         "Even more plain text!",
         "<html>Uncolored Text! <font color=orange>Now some example Text with color!</font> more Uncolored Text!</html>",
         "<html>Uncolored Text! <font color=green>And some more example text with color! Text, Text, Text!</font> more Uncolored Text!</html>",
         "<html>Uncolored Text! <font color=red>A string with red color, Text Text Text!</font> more Uncolored Text!</html>",
         "<html>Uncolored Text! <font color=blue>And finally a string with blue color, Text Text Text!</font> more Uncolored Text!</html>",
         "<html>Uncolored Text! <font color=purple><selection color=white>Testing if some html can turn the selection color white!</selection></font> more Uncolored Text!</html>" };

   public JListSelectionColorTest() {
      super("JList Selection Color Test");

      try {
         UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
      } catch (Exception e) {
         e.printStackTrace();
      }
      JList<String> exampleJList = new JList<String>(exampleText);

      exampleJList.setCellRenderer(new MyCellRenderer());
      exampleJList.setSelectionForeground(Color.WHITE); 
      add(exampleJList);

      pack();
      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      setLocationRelativeTo(null);
      setVisible(true);
   }

   public static void main(String[] args) {
      new JListSelectionColorTest();
   }

   private static class MyCellRenderer extends DefaultListCellRenderer {
      // create a non-greedy regex to capture anything between angle brackets.
      private String regex = "\\<.*?\\>";

      @Override
      public Component getListCellRendererComponent(JList<?> list,
            Object value, int index, boolean isSelected, boolean cellHasFocus) {
         if (value == null) {
            return super.getListCellRendererComponent(list, value, index,
                  isSelected, cellHasFocus);
         }

         // only interested in selected Strings
         if (isSelected) {
            String valueStr = value.toString(); // get the String
            valueStr = valueStr.replaceAll(regex, "");  // extract the HTML
            value = valueStr;  // put back into value Object variable
         }
         return super.getListCellRendererComponent(list, value, index,
               isSelected, cellHasFocus);
      }
   }
}

: JSoup, HTML.
, HTML -HTML-, List .

+5

Source: https://habr.com/ru/post/1533805/

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