Example usage for javax.swing.event CaretEvent getMark

Introduction

In this page you can find the example usage for javax.swing.event CaretEvent getMark.

Prototype

public abstract int getMark();

Source Link

Document

Fetches the location of other end of a logical selection.

Usage

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    JFrame frame = new JFrame("Caret Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JTextArea textArea = new JTextArea();
    JScrollPane scrollPane = new JScrollPane(textArea);
    frame.add(scrollPane, BorderLayout.CENTER);

    CaretListener listener = new CaretListener() {
        public void caretUpdate(CaretEvent caretEvent) {
            System.out.println("dot:" + caretEvent.getDot());
            System.out.println("mark" + caretEvent.getMark());
        }//from   ww  w.java  2s.co m
    };

    textArea.addCaretListener(listener);

    frame.setSize(250, 150);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String[] argv) {
    JTextComponent textComp = new JTextArea();
    textComp.addCaretListener(new CaretListener() {
        public void caretUpdate(CaretEvent e) {

            int dot = e.getDot();
            System.out.println("dot is the caret position:" + dot);

            int mark = e.getMark();
            System.out.println("mark is the non-caret end of the selection: " + mark);
        }//from  ww  w  .  ja  v  a 2 s . co  m
    });
}

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From source file:Main.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Caret Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JTextArea textArea = new JTextArea();
    JScrollPane scrollPane = new JScrollPane(textArea);
    frame.add(scrollPane, BorderLayout.CENTER);

    CaretListener listener = new CaretListener() {
        public void caretUpdate(CaretEvent caretEvent) {
            System.out.println("Dot: " + caretEvent.getDot());
            System.out.println("Mark: " + caretEvent.getMark());
        }/*from  ww  w .  j a  v a 2s .  c o  m*/
    };

    textArea.addCaretListener(listener);

    frame.setSize(250, 150);
    frame.setVisible(true);
}

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From source file:CaretSample.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Caret Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Container content = frame.getContentPane();
    JTextArea textArea = new JTextArea();
    JScrollPane scrollPane = new JScrollPane(textArea);
    content.add(scrollPane, BorderLayout.CENTER);

    final JTextField dot = new JTextField();
    dot.setEditable(false);//from   w w  w . j  av  a2  s.  c o  m
    JPanel dotPanel = new JPanel(new BorderLayout());
    dotPanel.add(new JLabel("Dot: "), BorderLayout.WEST);
    dotPanel.add(dot, BorderLayout.CENTER);
    content.add(dotPanel, BorderLayout.NORTH);

    final JTextField mark = new JTextField();
    mark.setEditable(false);
    JPanel markPanel = new JPanel(new BorderLayout());
    markPanel.add(new JLabel("Mark: "), BorderLayout.WEST);
    markPanel.add(mark, BorderLayout.CENTER);
    content.add(markPanel, BorderLayout.SOUTH);

    CaretListener listener = new CaretListener() {
        public void caretUpdate(CaretEvent caretEvent) {
            dot.setText("" + caretEvent.getDot());
            mark.setText("" + caretEvent.getMark());
        }
    };

    textArea.addCaretListener(listener);

    frame.setSize(250, 150);
    frame.setVisible(true);
}

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From source file:net.team2xh.crt.gui.editor.EditorTextPane.java

public EditorTextPane() {

    // Initialize highlighters
    lh = new LineHighlighter(Theme.getTheme().COLOR_13);
    ll = new LineHighlighter(Theme.getTheme().COLOR_14);
    wh = new WordHighlighter(Theme.getTheme().COLOR_11);
    eh = new ErrorHighlighter(Color.RED);

    // Initialise colors
    initAttributeSets();//  w w w.j  av a2  s . c om

    setOpaque(false); // Background will be drawn later on
    setFont(font);

    doc = (DefaultStyledDocument) getDocument();

    // Replace all tabs with four spaces
    // TODO: tab to next multiple of 4 column
    // TODO: tab whole selection
    // TODO: insert matching brace
    doc.setDocumentFilter(new DocumentFilter() {
        private String process(int offset, String text) {
            return text.replaceAll("\t", "    ").replaceAll("\r", "");
        }

        @Override
        public void insertString(FilterBypass fb, int offset, String text, AttributeSet attr)
                throws BadLocationException {
            super.insertString(fb, offset, process(offset, text), attr);
        }

        @Override
        public void replace(FilterBypass fb, int offset, int length, String text, AttributeSet attr)
                throws BadLocationException {
            super.replace(fb, offset, length, process(offset, text), attr);
        }
    });

    // Highlight text when text changes
    doc.addDocumentListener(new DocumentListener() {

        @Override
        public void removeUpdate(DocumentEvent e) {
            SwingUtilities.invokeLater(() -> highlightText());
            changed = true;
        }

        @Override
        public void insertUpdate(DocumentEvent e) {
            SwingUtilities.invokeLater(() -> highlightText());
            changed = true;
        }

        @Override
        public void changedUpdate(DocumentEvent e) {
        }
    });

    addCaretListener(new CaretListener() {
        private boolean isAlphanum(char c) {
            return Character.isDigit(c) || Character.isLetter(c);
        }

        private boolean isAlphanum(String s) {
            for (char c : s.toCharArray()) // Allow dots in middle of words for floats
            {
                if (c != '.' && !isAlphanum(c)) {
                    return false;
                }
            }

            return true;
        }

        @Override
        public void caretUpdate(CaretEvent ce) {
            try {

                // Highlight current line
                highlightCurrentLine();

                // Clear previously highlighted occurrences
                for (Object o : occurrences) {
                    getHighlighter().removeHighlight(o);
                }
                repaint();
                occurrences.clear();

                // Get start and end offsets, swap them if necessary
                int s = ce.getDot();
                int e = ce.getMark();

                if (s > e) {
                    s = s + e;
                    e = s - e;
                    s = s - e;
                }

                // If there is a selection,
                if (s != e) {
                    // Check if the char on the left and on the right are not alphanums
                    char f = s == 0 ? ' ' : doc.getText(s - 1, 1).charAt(0);
                    char l = s == doc.getLength() - 1 ? ' ' : doc.getText(e, 1).charAt(0);
                    if (!isAlphanum(f) && !isAlphanum(l)) {
                        String word = doc.getText(s, e - s);
                        if (isAlphanum(word)) {
                            highlightOccurrences(word, s, e);
                        }
                    }
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    });

    setCaretColor(Theme.getTheme().COLOR_11);

    highlightText();
}

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