Java Platform 1.2
Beta 4

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

Java Platform 1.2
Beta 4

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