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Java Platform 1.2
Beta 4

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SUMMARY: INNER | FIELD | CONSTR | METHOD

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Class com.sun.java.swing.text.PasswordView

java.lang.Object
  |
  +--com.sun.java.swing.text.View
        |
        +--com.sun.java.swing.text.PlainView
              |
              +--com.sun.java.swing.text.FieldView
                    |
                    +--com.sun.java.swing.text.PasswordView

public class PasswordView

extends FieldView

Implements a View suitable for use in JPasswordField UI implementations. This is basically a field ui that renders its contents as the echo character specified in the associated component (if it can narrow the component to a JPasswordField).

See Also:

View

Fields inherited from class com.sun.java.swing.text.PlainView

metrics

Fields inherited from class com.sun.java.swing.text.View

BadBreakWeight , ExcellentBreakWeight , ForcedBreakWeight , GoodBreakWeight , X_AXIS , Y_AXIS

Constructor Summary

PasswordView(Element elem)
Constructs a new view wrapped on an element.

Method Summary

protected int	drawEchoCharacter(Graphics g, int x, int y, char c) Renders the echo character, or whatever graphic should be used to display the password characters.
protected int	drawSelectedText(Graphics g, int x, int y, int p0, int p1) Renders the given range in the model as selected text.
protected int	drawUnselectedText(Graphics g, int x, int y, int p0, int p1) Renders the given range in the model as normal unselected text.

Methods inherited from class com.sun.java.swing.text.FieldView

adjustAllocation , getFontMetrics , getPreferredSpan , getResizeWeight , insertUpdate , modelToView , paint , removeUpdate , viewToModel

Methods inherited from class com.sun.java.swing.text.PlainView

changedUpdate , drawLine , getLineBuffer , getTabSize , nextTabStop , preferenceChanged

Methods inherited from class com.sun.java.swing.text.View

breakView , createFragment , getAlignment , getAttributes , getBreakWeight , getChildAllocation , getContainer , getDocument , getElement , getEndOffset , getMaximumSpan , getMinimumSpan , getNextVisualPositionFrom , getParent , getStartOffset , getView , getViewCount , getViewFactory , modelToView , setParent , setSize , viewToModel

Methods inherited from class java.lang.Object

clone , equals , finalize , getClass , hashCode , notify , notifyAll , toString , wait , wait , wait

Constructor Detail

PasswordView

public PasswordView(Element elem)

Constructs a new view wrapped on an element.

Parameters:

elem - the element

Method Detail

drawUnselectedText

protected int drawUnselectedText(Graphics g,
                                 int x,
                                 int y,
                                 int p0,
                                 int p1)
                          throws BadLocationException

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().

Parameters:

g - the graphics context

x - the starting X coordinate >= 0

y - the starting Y coordinate >= 0

p0 - the starting offset in the model >= 0

p1 - the ending offset in the model >= p0

Throws:

BadLocationException - if p0 or p1 are out of range

Overrides:

drawUnselectedText in class PlainView

drawSelectedText

protected int drawSelectedText(Graphics g,
                               int x,
                               int y,
                               int p0,
                               int p1)
                        throws BadLocationException

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.

Parameters:

g - the graphics context

x - the starting X coordinate >= 0

y - the starting Y coordinate >= 0

p0 - the starting offset in the model >= 0

p1 - the ending offset in the model >= p0

Throws:

BadLocationException - if p0 or p1 are out of range

Overrides:

drawSelectedText in class PlainView

drawEchoCharacter

protected int drawEchoCharacter(Graphics g,
                                int x,
                                int y,
                                char 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.

Parameters:

g - the graphics context

x - the starting X coordinate >= 0

y - the starting Y coordinate >= 0

c - the echo character

Returns:

the updated X position >= 0