Jtextpane Word Wrapper

Question

I’m not finding a way to organize the lines within a Jtextpane, and I need to continue with styling but also with a Word Wrapper, there is some method or some component that does similar?

public class PanelTeste extends javax.swing.JFrame {

    public PanelTeste() {
        initComponents();
        initTeste();
    }

    public void initTeste() {

        //"panel" é o JTextPane
        scroll.setViewportView(panel);
        scroll.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
        scroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);

        StyledDocument doc = panel.getStyledDocument();

        SimpleAttributeSet keyWord = new SimpleAttributeSet();
        StyleConstants.setForeground(keyWord, Color.RED);
        StyleConstants.setBackground(keyWord, Color.YELLOW);
        StyleConstants.setBold(keyWord, true);

        try {
            doc.insertString(0, "Algo aqui", keyWord);
        } catch (Exception e) {
            System.out.println(e);
        }
    }

    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        scroll = new javax.swing.JScrollPane();
        panel = new javax.swing.JTextPane();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        scroll.setViewportView(panel);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(27, 27, 27)
                .addComponent(scroll, javax.swing.GroupLayout.PREFERRED_SIZE, 197, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(19, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(31, 31, 31)
                .addComponent(scroll, javax.swing.GroupLayout.DEFAULT_SIZE, 156, Short.MAX_VALUE)
                .addContainerGap())
        );

        pack();
    }// </editor-fold>                        

    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(PanelTeste.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(PanelTeste.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(PanelTeste.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(PanelTeste.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new PanelTeste().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify                     
    private javax.swing.JTextPane panel;
    private javax.swing.JScrollPane scroll;
    // End of variables declaration                   

}

Answer 1

I was able to find a link where some classes are created with their proper extensions and added to JTextPane.

The classes to be created are the following

class WrapEditorKit extends StyledEditorKit {
    ViewFactory defaultFactory=new WrapColumnFactory();
    public ViewFactory getViewFactory() {
        return defaultFactory;
    }

}

class WrapColumnFactory implements ViewFactory {
    public View create(Element elem) {
        String kind = elem.getName();
        if (kind != null) {
            if (kind.equals(AbstractDocument.ContentElementName)) {
                return new WrapLabelView(elem);
            } else if (kind.equals(AbstractDocument.ParagraphElementName)) {
                return new ParagraphView(elem);
            } else if (kind.equals(AbstractDocument.SectionElementName)) {
                return new BoxView(elem, View.Y_AXIS);
            } else if (kind.equals(StyleConstants.ComponentElementName)) {
                return new ComponentView(elem);
            } else if (kind.equals(StyleConstants.IconElementName)) {
                return new IconView(elem);
            }
        }

        // default to text display
        return new LabelView(elem);
    }
}

class WrapLabelView extends LabelView {
    public WrapLabelView(Element elem) {
        super(elem);
    }

    public float getMinimumSpan(int axis) {
        switch (axis) {
            case View.X_AXIS:
                return 0;
            case View.Y_AXIS:
                return super.getMinimumSpan(axis);
            default:
                throw new IllegalArgumentException("Invalid axis: " + axis);
        }
    }

}

After this, the following Jtextpane method should be used. seuJTextPanel.setEditorKit(new WrapEditorKit());

So it is possible to make that when the word is too big, it passes to the bottom line.

Reference Fix for wrap