Java Tutorial/Swing/JEditorPane

Change mouse cursor during mouse-over action on hyperlinks

import java.io.FileNotFoundException;
import javax.swing.JEditorPane;
import javax.swing.event.HyperlinkEvent;
import javax.swing.event.HyperlinkListener;
import javax.swing.text.html.HTMLDocument;
import javax.swing.text.html.HTMLFrameHyperlinkEvent;
public class Main implements HyperlinkListener {
  private JEditorPane pane;
  public Main(JEditorPane jep) {
    pane = jep;
  }
  public void hyperlinkUpdate(HyperlinkEvent he) {
    HyperlinkEvent.EventType type = he.getEventType();
    if (type == HyperlinkEvent.EventType.ENTERED) {
        System.out.println(he.getURL().toString());
    } else if (type == HyperlinkEvent.EventType.EXITED) {
      System.out.println("Exited");
    } else if (type == HyperlinkEvent.EventType.ACTIVATED) {
      if (he instanceof HTMLFrameHyperlinkEvent) {
        HTMLFrameHyperlinkEvent evt = (HTMLFrameHyperlinkEvent) he;
        HTMLDocument doc = (HTMLDocument) pane.getDocument();
        doc.processHTMLFrameHyperlinkEvent(evt);
      } else {
        try {
          pane.setPage(he.getURL());
          System.out.println(he.getURL().toString());
        } catch (FileNotFoundException fnfe) {
          pane.setText("Could not open file: <tt>" + he.getURL() + "</tt>.<hr>");
        } catch (Exception e) {
          e.printStackTrace();
        }
      }
    }
  }
}

How to change mouse cursor during mouse-over action on hyperlinks

import javax.swing.JEditorPane;
import javax.swing.event.HyperlinkEvent;
import javax.swing.event.HyperlinkListener;
import javax.swing.text.html.HTMLDocument;
import javax.swing.text.html.HTMLFrameHyperlinkEvent;
public class Main implements HyperlinkListener {
  private JEditorPane pane;
  public Main(JEditorPane jep) {
    pane = jep;
  }
  public void hyperlinkUpdate(HyperlinkEvent he) {
    HyperlinkEvent.EventType type = he.getEventType();
    if (type == HyperlinkEvent.EventType.ENTERED) {
      System.out.println(he.getURL().toString());
    } else if (type == HyperlinkEvent.EventType.EXITED) {
      System.out.println("exit");
    } else if (type == HyperlinkEvent.EventType.ACTIVATED) {
      if (he instanceof HTMLFrameHyperlinkEvent) {
        HTMLFrameHyperlinkEvent evt = (HTMLFrameHyperlinkEvent) he;
        HTMLDocument doc = (HTMLDocument) pane.getDocument();
        doc.processHTMLFrameHyperlinkEvent(evt);
      } else {
        try {
          pane.setPage(he.getURL());
          System.out.println(he.getURL().toString());
        } catch (Exception e) {
          e.printStackTrace();
        }
      }
    }
  }
}

JEditorPane Look and Feel

Property StringObject TypeEditorPane.actionMapActionMapEditorPane.backgroundColorEditorPane.borderBorderEditorPane.caretAspectRatioNumberEditorPane.caretBlinkRateIntegerEditorPane.caretForegroundColorEditorPane.focusInputMapInputMapEditorPane.fontFontEditorPane.foregroundColorEditorPane.inactiveForegroundColorEditorPane.keyBindingsKeyBinding[ ]EditorPane.marginInsetsEditorPane.selectionBackgroundColorEditorPane.selectionForegroundColorEditorPaneUIString

Loading HTML Documents as a StyledDocument into a JEditorPane

The JEditorPane class provides the ability to display and edit multiple-attributed text.

import java.awt.BorderLayout;
import java.io.FileReader;
import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.text.html.HTMLEditorKit;
public class LoadingHTMLDocuments {
  public static void main(String args[])throws Exception {
    JFrame frame = new JFrame("Tab Attributes");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JEditorPane editorPane = new JEditorPane();
    editorPane.setEditorKit(new HTMLEditorKit());
    
    String filename = "yourFile.htm";
    
    FileReader reader = new FileReader(filename);
    editorPane.read(reader, filename);
    JScrollPane scrollPane = new JScrollPane(editorPane);
    frame.add(scrollPane, BorderLayout.CENTER);
    frame.setSize(300, 150);
    frame.setVisible(true);
  }
}

Loading Web Page To JEditorPane

import java.net.URL;
import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
public class LoadingWebPageToJEditorPane {
  public static void main(String[] a)throws Exception {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JEditorPane editorPane = new JEditorPane();
    editorPane.setPage(new URL("http://www.jexp.ru"));
    frame.add(new JScrollPane(editorPane));
    frame.setSize(300, 200);
    frame.setVisible(true);
  }
}

Show html

import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
public class Main {
  public static void main(String[] args) throws Exception {
    JEditorPane editor = new JEditorPane("text/html",
        "<H1>A!</H1><P><FONT COLOR=blue>blue</FONT></P>");
    editor.setEditable(false);
    JScrollPane pane = new JScrollPane(editor);
    JFrame f = new JFrame("HTML Demo");
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.getContentPane().add(pane);
    f.setSize(800, 600);
    f.setVisible(true);
  }
}

Using Actions with Text Components: JEditorPane

import java.util.Arrays;
import java.util.ruparator;
import javax.swing.Action;
import javax.swing.JEditorPane;
import javax.swing.text.JTextComponent;
public class ListActionsJEditorPane {
  public static void main(String args[]) {
    JTextComponent component = new JEditorPane();
    // Process action list
    Action actions[] = component.getActions();
    // Define comparator to sort actions
    Comparator<Action> comparator = new Comparator<Action>() {
      public int compare(Action a1, Action a2) {
        String firstName = (String) a1.getValue(Action.NAME);
        String secondName = (String) a2.getValue(Action.NAME);
        return firstName.rupareTo(secondName);
      }
    };
    Arrays.sort(actions, comparator);
    int count = actions.length;
    System.out.println("Count: " + count);
    for (int i = 0; i < count; i++) {
      System.out.printf("%28s : %s\n",actions[i].getValue(Action.NAME),actions[i].getClass().getName());
    }
  }
}

Count: 53
                        beep : javax.swing.text.DefaultEditorKit$BeepAction
              caret-backward : javax.swing.text.DefaultEditorKit$NextVisualPositionAction
                 caret-begin : javax.swing.text.DefaultEditorKit$BeginAction
            caret-begin-line : javax.swing.text.DefaultEditorKit$BeginLineAction
       caret-begin-paragraph : javax.swing.text.DefaultEditorKit$BeginParagraphAction
            caret-begin-word : javax.swing.text.DefaultEditorKit$BeginWordAction
                  caret-down : javax.swing.text.DefaultEditorKit$NextVisualPositionAction
                   caret-end : javax.swing.text.DefaultEditorKit$EndAction
              caret-end-line : javax.swing.text.DefaultEditorKit$EndLineAction
         caret-end-paragraph : javax.swing.text.DefaultEditorKit$EndParagraphAction
              caret-end-word : javax.swing.text.DefaultEditorKit$EndWordAction
               caret-forward : javax.swing.text.DefaultEditorKit$NextVisualPositionAction
             caret-next-word : javax.swing.text.DefaultEditorKit$NextWordAction
         caret-previous-word : javax.swing.text.DefaultEditorKit$PreviousWordAction
                    caret-up : javax.swing.text.DefaultEditorKit$NextVisualPositionAction
           copy-to-clipboard : javax.swing.text.DefaultEditorKit$CopyAction
            cut-to-clipboard : javax.swing.text.DefaultEditorKit$CutAction
               default-typed : javax.swing.text.DefaultEditorKit$DefaultKeyTypedAction
                 delete-next : javax.swing.text.DefaultEditorKit$DeleteNextCharAction
             delete-previous : javax.swing.text.DefaultEditorKit$DeletePrevCharAction
                  dump-model : javax.swing.text.DefaultEditorKit$DumpModelAction
                insert-break : javax.swing.text.DefaultEditorKit$InsertBreakAction
              insert-content : javax.swing.text.DefaultEditorKit$InsertContentAction
                  insert-tab : javax.swing.text.DefaultEditorKit$InsertTabAction
                   page-down : javax.swing.text.DefaultEditorKit$VerticalPageAction
                     page-up : javax.swing.text.DefaultEditorKit$VerticalPageAction
        paste-from-clipboard : javax.swing.text.DefaultEditorKit$PasteAction
                  select-all : javax.swing.text.DefaultEditorKit$SelectAllAction
                 select-line : javax.swing.text.DefaultEditorKit$SelectLineAction
            select-paragraph : javax.swing.text.DefaultEditorKit$SelectParagraphAction
                 select-word : javax.swing.text.DefaultEditorKit$SelectWordAction
          selection-backward : javax.swing.text.DefaultEditorKit$NextVisualPositionAction
             selection-begin : javax.swing.text.DefaultEditorKit$BeginAction
        selection-begin-line : javax.swing.text.DefaultEditorKit$BeginLineAction
   selection-begin-paragraph : javax.swing.text.DefaultEditorKit$BeginParagraphAction
        selection-begin-word : javax.swing.text.DefaultEditorKit$BeginWordAction
              selection-down : javax.swing.text.DefaultEditorKit$NextVisualPositionAction
               selection-end : javax.swing.text.DefaultEditorKit$EndAction
          selection-end-line : javax.swing.text.DefaultEditorKit$EndLineAction
     selection-end-paragraph : javax.swing.text.DefaultEditorKit$EndParagraphAction
          selection-end-word : javax.swing.text.DefaultEditorKit$EndWordAction
           selection-forward : javax.swing.text.DefaultEditorKit$NextVisualPositionAction
         selection-next-word : javax.swing.text.DefaultEditorKit$NextWordAction
         selection-page-down : javax.swing.text.DefaultEditorKit$VerticalPageAction
         selection-page-left : javax.swing.text.DefaultEditorKit$PageAction
        selection-page-right : javax.swing.text.DefaultEditorKit$PageAction
           selection-page-up : javax.swing.text.DefaultEditorKit$VerticalPageAction
     selection-previous-word : javax.swing.text.DefaultEditorKit$PreviousWordAction
                selection-up : javax.swing.text.DefaultEditorKit$NextVisualPositionAction
               set-read-only : javax.swing.text.DefaultEditorKit$ReadOnlyAction
                set-writable : javax.swing.text.DefaultEditorKit$WritableAction
 toggle-componentOrientation : javax.swing.text.DefaultEditorKit$ToggleComponentOrientationAction
                    unselect : javax.swing.text.DefaultEditorKit$UnselectAction