Example usage for javax.swing.text JTextComponent getDocument

Introduction

In this page you can find the example usage for javax.swing.text JTextComponent getDocument.

Prototype

public Document getDocument() 

Source Link

Document

Fetches the model associated with the editor.

Usage

From source file:Main.java

public static void main(String[] argv) {

    JTextComponent textComp1 = new JTextArea();
    JTextComponent textComp2 = new JTextArea();

    textComp2.setDocument(textComp1.getDocument());

}

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From source file:Main.java

public static void main(String[] argv) throws Exception {
    JTextComponent textcomp = new JTextPane();
    textcomp.setText("Initial Text");
    textcomp.getDocument().addDocumentListener(new DocumentListener() {
        public void insertUpdate(DocumentEvent evt) {
            int off = evt.getOffset();
            System.out.println("off:" + off);
            int len = evt.getLength();
            System.out.println("len:" + len);
            try {
                String str = evt.getDocument().getText(off, len);
                System.out.println(str);
            } catch (BadLocationException e) {
            }//from  w w  w  .ja  v  a 2s  .com
        }

        public void removeUpdate(DocumentEvent evt) {
            int off = evt.getOffset();
            System.out.println("off:" + off);
            int len = evt.getLength();
            System.out.println("len:" + len);
        }

        public void changedUpdate(DocumentEvent evt) {
            int off = evt.getOffset();
            System.out.println("off:" + off);
            int len = evt.getLength();
            System.out.println("len:" + len);
        }
    });
}

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From source file:Main.java

public static void main(String[] argv) {
    JTextComponent textcomp = new JTextArea();
    final UndoManager undo = new UndoManager();
    Document doc = textcomp.getDocument();

    doc.addUndoableEditListener(new UndoableEditListener() {
        public void undoableEditHappened(UndoableEditEvent evt) {
            undo.addEdit(evt.getEdit());
        }//from   www .  ja  v a 2s. c  om
    });

    textcomp.getActionMap().put("Undo", new AbstractAction("Undo") {
        public void actionPerformed(ActionEvent evt) {
            try {
                if (undo.canUndo()) {
                    undo.undo();
                }
            } catch (CannotUndoException e) {
            }
        }
    });

    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.add(new JScrollPane(textcomp));
    frame.setSize(380, 320);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String[] argv) {

    JTextComponent textcomp = new JTextArea();
    final UndoManager undo = new UndoManager();
    Document doc = textcomp.getDocument();

    doc.addUndoableEditListener(new UndoableEditListener() {
        public void undoableEditHappened(UndoableEditEvent evt) {
            undo.addEdit(evt.getEdit());
        }//w w  w.j  ava  2 s.  c  o  m
    });

    textcomp.getActionMap().put("Undo", new AbstractAction("Undo") {
        public void actionPerformed(ActionEvent evt) {
            try {
                if (undo.canUndo()) {
                    undo.undo();
                }
            } catch (CannotUndoException e) {
            }
        }
    });

    textcomp.getInputMap().put(KeyStroke.getKeyStroke("control Z"), "Undo");

    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.add(new JScrollPane(textcomp));
    frame.setSize(380, 320);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);
}

---

From source file:Main.java

public static void main(String[] argv) throws Exception {
    JTextComponent textcomp = new JTextArea();
    final UndoManager undo = new UndoManager();
    Document doc = textcomp.getDocument();

    doc.addUndoableEditListener(new UndoableEditListener() {
        public void undoableEditHappened(UndoableEditEvent evt) {
            undo.addEdit(evt.getEdit());
        }//from  ww  w  .  j  av  a 2s . c  om
    });
    textcomp.getActionMap().put("Undo", new AbstractAction("Undo") {
        public void actionPerformed(ActionEvent evt) {
            try {
                if (undo.canUndo()) {
                    undo.undo();
                }
            } catch (CannotUndoException e) {
            }
        }
    });
    textcomp.getInputMap().put(KeyStroke.getKeyStroke("control Z"), "Undo");
    textcomp.getActionMap().put("Redo", new AbstractAction("Redo") {
        public void actionPerformed(ActionEvent evt) {
            try {
                if (undo.canRedo()) {
                    undo.redo();
                }
            } catch (CannotRedoException e) {
            }
        }
    });
    textcomp.getInputMap().put(KeyStroke.getKeyStroke("control Y"), "Redo");
}

---

From source file:Main.java

public static void main(String[] argv) throws Exception {
    JTextComponent textcomp = new JTextArea();
    final UndoManager undo = new UndoManager();
    Document doc = textcomp.getDocument();

    JFrame f = new JFrame();
    f.add(new JScrollPane(textcomp));
    f.setSize(330, 300);//from  ww  w  .  j a  v  a  2s.  c o  m
    f.setVisible(true);

    doc.addUndoableEditListener(new UndoableEditListener() {
        public void undoableEditHappened(UndoableEditEvent evt) {
            undo.addEdit(evt.getEdit());
        }
    });

    textcomp.getActionMap().put("Undo", new AbstractAction("Undo") {
        public void actionPerformed(ActionEvent evt) {
            try {
                if (undo.canUndo()) {
                    undo.undo();
                }
            } catch (CannotUndoException e) {
            }
        }
    });

    textcomp.getInputMap().put(KeyStroke.getKeyStroke("control Z"), "Undo");

    textcomp.getActionMap().put("Redo", new AbstractAction("Redo") {
        public void actionPerformed(ActionEvent evt) {
            try {
                if (undo.canRedo()) {
                    undo.redo();
                }
            } catch (CannotRedoException e) {
            }
        }
    });

    textcomp.getInputMap().put(KeyStroke.getKeyStroke("control Y"), "Redo");

}

---

From source file:Main.java

public static void main(String[] argv) {
    JTextComponent textcomp = new JTextArea();
    final UndoManager undo = new UndoManager();
    Document doc = textcomp.getDocument();

    doc.addUndoableEditListener(new UndoableEditListener() {
        public void undoableEditHappened(UndoableEditEvent evt) {
            undo.addEdit(evt.getEdit());
        }/*from ww  w  .j a va  2  s  . c  o m*/
    });

    textcomp.getActionMap().put("Undo", new AbstractAction("Undo") {
        public void actionPerformed(ActionEvent evt) {
            try {
                if (undo.canUndo()) {
                    undo.undo();
                }
            } catch (CannotUndoException e) {
            }
        }
    });

    textcomp.getInputMap().put(KeyStroke.getKeyStroke("control Z"), "Undo");

    textcomp.getActionMap().put("Redo", new AbstractAction("Redo") {
        public void actionPerformed(ActionEvent evt) {
            try {
                if (undo.canRedo()) {
                    undo.redo();
                }
            } catch (CannotRedoException e) {
            }
        }
    });

    textcomp.getInputMap().put(KeyStroke.getKeyStroke("control Y"), "Redo");

    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.add(new JScrollPane(textcomp));
    frame.setSize(380, 320);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);

}

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From source file:Main.java

/**
 * Get the string from the passed in textComponent representing the text displayed by the
 * component with all the soft new lines (added in from text wrapping) added in. 
 * /*  w w w.j  ava  2 s.c o m*/
 * @param c
 * @return
 *    Returns null if comp does not have a size
 */
public static String getWrappedText(JTextComponent c) {
    int len = c.getDocument().getLength();
    int offset = 0;

    // Increase 10% for extra newlines
    StringBuffer buf = new StringBuffer((int) (len * 1.10));

    try {
        while (offset < len) {
            int end = Utilities.getRowEnd(c, offset);
            if (end < 0) {
                break;
            }

            // Include the last character on the line
            end = Math.min(end + 1, len);

            String s = c.getDocument().getText(offset, end - offset);
            buf.append(s);

            // Add a newline if s does not have one
            if (!s.endsWith("\n")) {
                buf.append('\n');
            }
            offset = end;
        }
    } catch (BadLocationException e) {
    }
    return buf.toString();
}

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From source file:TextComponentDisplay.java

public static void displayModel(JTextComponent comp, PrintStream out) {
    Document doc = comp.getDocument();
    if (doc instanceof AbstractDocument) {
        ((AbstractDocument) doc).dump(out);
    }//w  w w  .j av  a2s . c o  m

}

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From source file:Main.java

public static void highlight(JTextComponent textComp) {
    try {/*from   ww  w .j  av a2  s  .  c  o  m*/
        Highlighter hilite = textComp.getHighlighter();
        Document doc = textComp.getDocument();
        hilite.addHighlight(3, 5, new MyHighlightPainter(Color.red));
    } catch (BadLocationException e) {
        e.printStackTrace();
    }
}

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