Every time JTextPane.setText(…) is called a new content type is determined. Start the text with “<html>” and you’ve got HTML. A new document is created, in your case HTMLDocument. @mKorbel: the following creates every time HTML for the JTextPane. buildSomething.append(“<html>”); buildSomething1.append(“<html>”); for (int i = 0; i < 10; i++) { buildSomething.append(“<span style=\”color:red\”>” + myBirthday … Read more
See No Wrap Text Pane. Here’s the code included from the link. JTextPane textPane = new JTextPane(); JPanel noWrapPanel = new JPanel( new BorderLayout() ); noWrapPanel.add( textPane ); JScrollPane scrollPane = new JScrollPane( noWrapPanel );
As often there are several possibilities, depending on what you really mean by “highlight”:-) Highlight by changing any style attributes of arbitrary text parts on the document level, something like SimpleAttributeSet sas = new SimpleAttributeSet(); StyleConstants.setForeground(sas, Color.YELLOW); doc.setCharacterAttributes(start, length, sas, false); Highlight via a Highlighter on the textPane level: DefaultHighlighter.DefaultHighlightPainter highlightPainter = new DefaultHighlighter.DefaultHighlightPainter(Color.YELLOW); textPane.getHighlighter().addHighlight(startPos, … Read more
+1 to mKorbel. Use JavaFX WebView which supports HTML5 by integrating it with Swing. Here is an example: import java.awt.*; import java.awt.event.*; import java.net.MalformedURLException; import java.net.URL; import javafx.application.Platform; import javafx.beans.value.ChangeListener; import javafx.beans.value.ObservableValue; import static javafx.concurrent.Worker.State.FAILED; import javafx.embed.swing.JFXPanel; import javafx.event.EventHandler; import javafx.scene.Scene; import javafx.scene.web.WebEngine; import javafx.scene.web.WebEvent; import javafx.scene.web.WebView; import javax.swing.*; public class SimpleSwingBrowser implements Runnable { … Read more
This will print out “BLAH BLEG” in two different colors. public class Main { public static void main(String[] args) { JTextPane textPane = new JTextPane(); StyledDocument doc = textPane.getStyledDocument(); Style style = textPane.addStyle(“I’m a Style”, null); StyleConstants.setForeground(style, Color.red); try { doc.insertString(doc.getLength(), “BLAH “,style); } catch (BadLocationException e){} StyleConstants.setForeground(style, Color.blue); try { doc.insertString(doc.getLength(), “BLEH”,style); } catch … Read more
I doubt that is the recommended approach for appending text. This means every time you change some text you need to reparse the entire document. The reason people may do this is because the don’t understand how to use a JEditorPane. That includes me. I much prefer using a JTextPane and then using attributes. A … Read more
No. You are not supposed to override the paintComponent() method. Instead, you should use StyledDocument. You should also delimit the words by your self. Here is the demo, which turns “public”, “protected” and “private” to red when typing, just like a simple code editor: import javax.swing.*; import java.awt.*; import javax.swing.text.*; public class Test extends JFrame … Read more
The link about custom wrap (forced wrap and no wrap). http://java-sl.com/wrap.html The link about letter wrap http://java-sl.com/tip_html_letter_wrap.html
Also seen here, TextComponentDemo shows how to apply a number of StyleConstants, including font size, style, alignment and color. The styles may applied either directly to the Document, as shown in initAttributes(), or via the actions of StyledEditorKit, seen here. Addendum: The example below creates three related styles using SimpleAttributeSet. Note that highAlert alters the … Read more
You need to use a JTextPane and use attributes. The following should center all the text: StyledDocument doc = textPane.getStyledDocument(); SimpleAttributeSet center = new SimpleAttributeSet(); StyleConstants.setAlignment(center, StyleConstants.ALIGN_CENTER); doc.setParagraphAttributes(0, doc.getLength(), center, false); Edit: Vertical centering is not supported as far as I know. Here is some code you might find useful: Vertical Alignment of JTextPane