Module java.desktop

Class PasswordView

All Implemented Interfaces:
SwingConstants, TabExpander

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
  • Constructor Details

    • PasswordView

      public PasswordView​(Element elem)
      Constructs a new view wrapped on an element.
      Parameters:
      elem - the element
  • Method Details

    • drawUnselectedText

      @Deprecated(since="9") 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().
      Overrides:
      drawUnselectedText in class PlainView
      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
      Returns:
      the X location of the end of the range >= 0
      Throws:
      BadLocationException - if p0 or p1 are out of range
    • drawSelectedText

      @Deprecated(since="9") 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.
      Overrides:
      drawSelectedText in class PlainView
      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
      Returns:
      the X location of the end of the range >= 0
      Throws:
      BadLocationException - if p0 or p1 are out of range
    • drawEchoCharacter

      @Deprecated(since="9") 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
    • drawEchoCharacter

      protected float drawEchoCharacter​(Graphics2D g, float x, float 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
      Since:
      9
    • modelToView

      public Shape modelToView​(int pos, Shape a, Position.Bias b) throws BadLocationException
      Provides a mapping from the document model coordinate space to the coordinate space of the view mapped to it.
      Overrides:
      modelToView in class FieldView
      Parameters:
      pos - the position to convert >= 0
      a - the allocated region to render into
      b - the bias toward the previous character or the next character represented by the offset, in case the position is a boundary of two views; b will have one of these values:
      • Position.Bias.Forward
      • Position.Bias.Backward
      Returns:
      the bounding box of the given position
      Throws:
      BadLocationException - if the given position does not represent a valid location in the associated document
      See Also:
      View.modelToView(int, java.awt.Shape, javax.swing.text.Position.Bias)
    • viewToModel

      public int viewToModel​(float fx, float fy, Shape a, Position.Bias[] bias)
      Provides a mapping from the view coordinate space to the logical coordinate space of the model.
      Overrides:
      viewToModel in class FieldView
      Parameters:
      fx - the X coordinate >= 0.0f
      fy - the Y coordinate >= 0.0f
      a - the allocated region to render into
      bias - the returned bias
      Returns:
      the location within the model that best represents the given point in the view
      See Also:
      View.viewToModel(float, float, java.awt.Shape, javax.swing.text.Position.Bias[])
    • getPreferredSpan

      public float getPreferredSpan​(int axis)
      Determines the preferred span for this view along an axis.
      Overrides:
      getPreferredSpan in class FieldView
      Parameters:
      axis - may be either View.X_AXIS or View.Y_AXIS
      Returns:
      the span the view would like to be rendered into >= 0. Typically the view is told to render into the span that is returned, although there is no guarantee. The parent may choose to resize or break the view.