public PasswordView(Element elem) 
{
        super(elem);
}

Constructs a new view wrapped on an element.

Parameters:

elem - the element

 protected int drawEchoCharacter(Graphics g,
    int x,
    int y,
    char c) 
{
        ONE[0] = c;
        SwingUtilities2.drawChars(Utilities.getJComponent(this),
                                  g, ONE, 0, 1, x, y);
        return x + g.getFontMetrics().charWidth(c);
}

Renders the echo character, or whatever graphic should be used to display the password characters. The color in the Graphics object is set to the appropriate foreground color for selected or unselected text.

 protected int drawSelectedText(Graphics g,
    int x,
    int y,
    int p0,
    int p1) throws BadLocationException 
{
        g.setColor(selected);
        Container c = getContainer();
        if (c instanceof JPasswordField) {
            JPasswordField f = (JPasswordField) c;
            if (! f.echoCharIsSet()) {
                return super.drawSelectedText(g, x, y, p0, p1);
            }
            char echoChar = f.getEchoChar();
            int n = p1 - p0;
            for (int i = 0; i <  n; i++) {
                x = drawEchoCharacter(g, x, y, echoChar);
            }
        }
        return x;
}

Renders the given range in the model as selected text. This is implemented to render the text in the color specified in the hosting component. It assumes the highlighter will render the selected background. Uses the result of getEchoChar() to display the characters.

 protected int drawUnselectedText(Graphics g,
    int x,
    int y,
    int p0,
    int p1) throws BadLocationException 
{
        Container c = getContainer();
        if (c instanceof JPasswordField) {
            JPasswordField f = (JPasswordField) c;
            if (! f.echoCharIsSet()) {
                return super.drawUnselectedText(g, x, y, p0, p1);
            }
            if (f.isEnabled()) {
                g.setColor(f.getForeground());
            }
            else {
                g.setColor(f.getDisabledTextColor());
            }
            char echoChar = f.getEchoChar();
            int n = p1 - p0;
            for (int i = 0; i <  n; i++) {
                x = drawEchoCharacter(g, x, y, echoChar);
            }
        }
        return x;
}

Renders the given range in the model as normal unselected text. This sets the foreground color and echos the characters using the value returned by getEchoChar().

 public float getPreferredSpan(int axis) 
{
        switch (axis) {
        case View.X_AXIS:
            Container c = getContainer();
            if (c instanceof JPasswordField) {
                JPasswordField f = (JPasswordField) c;
                if (f.echoCharIsSet()) {
                    char echoChar = f.getEchoChar();
                    FontMetrics m = f.getFontMetrics(f.getFont());
                    Document doc = getDocument();
                    return m.charWidth(echoChar) * getDocument().getLength();
                }
            }
        }
        return super.getPreferredSpan(axis);
}

Determines the preferred span for this view along an axis.

 public Shape modelToView(int pos,
    Shape a,
    Bias b) throws BadLocationException 
{
        Container c = getContainer();
        if (c instanceof JPasswordField) {
            JPasswordField f = (JPasswordField) c;
            if (! f.echoCharIsSet()) {
                return super.modelToView(pos, a, b);
            }
            char echoChar = f.getEchoChar();
            FontMetrics m = f.getFontMetrics(f.getFont());
            Rectangle alloc = adjustAllocation(a).getBounds();
            int dx = (pos - getStartOffset()) * m.charWidth(echoChar);
            alloc.x += dx;
            alloc.width = 1;
            return alloc;
        }
        return null;
}

Provides a mapping from the document model coordinate space to the coordinate space of the view mapped to it.

 public int viewToModel(float fx,
    float fy,
    Shape a,
    Bias[] bias) 
{
        bias[0] = Position.Bias.Forward;
        int n = 0;
        Container c = getContainer();
        if (c instanceof JPasswordField) {
            JPasswordField f = (JPasswordField) c;
            if (! f.echoCharIsSet()) {
                return super.viewToModel(fx, fy, a, bias);
            }
            char echoChar = f.getEchoChar();
            int charWidth = f.getFontMetrics(f.getFont()).charWidth(echoChar);
            a = adjustAllocation(a);
            Rectangle alloc = (a instanceof Rectangle) ? (Rectangle)a :
                              a.getBounds();
            n = (charWidth  > 0 ?
                 ((int)fx - alloc.x) / charWidth : Integer.MAX_VALUE);
            if (n <  0) {
                n = 0;
            }
            else if (n  > (getStartOffset() + getDocument().getLength())) {
                n = getDocument().getLength() - getStartOffset();
            }
        }
        return getStartOffset() + n;
}

Provides a mapping from the view coordinate space to the logical coordinate space of the model.