Java javax.swing.text Class LabelView（JDK8）

Constructor Detail

• LabelView

  public LabelView(Element elem)

  Constructs a new view wrapped on an element.

  Parameters:

  elem - the element

Method Detail

• setUnderline

  protected void setUnderline(boolean u)

  Sets whether or not the view is underlined. Note that this setter is protected and is really only meant if you need to update some additional state when set.

  Parameters:

  u - true if the view is underlined, otherwise false

  See Also:

  isUnderline()

• setStrikeThrough

  protected void setStrikeThrough(boolean s)

  Sets whether or not the view has a strike/line through it. Note that this setter is protected and is really only meant if you need to update some additional state when set.

  Parameters:

  s - true if the view has a strike/line through it, otherwise false

  See Also:

  isStrikeThrough()

• setSuperscript

  protected void setSuperscript(boolean s)

  Sets whether or not the view represents a superscript. Note that this setter is protected and is really only meant if you need to update some additional state when set.

  Parameters:

  s - true if the view represents a superscript, otherwise false

  See Also:

  isSuperscript()

• setSubscript

  protected void setSubscript(boolean s)

  Sets whether or not the view represents a subscript. Note that this setter is protected and is really only meant if you need to update some additional state when set.

  Parameters:

  s - true if the view represents a subscript, otherwise false

  See Also:

  isSubscript()

• setBackground

  protected void setBackground(Color bg)

  Sets the background color for the view. This method is typically invoked as part of configuring this View. If you need to customize the background color you should override setPropertiesFromAttributes and invoke this method. A value of null indicates no background should be rendered, so that the background of the parent View will show through.

  Parameters:

  bg - background color, or null

  Since:

  1.5

  See Also:

  setPropertiesFromAttributes()

• setPropertiesFromAttributes

  protected void setPropertiesFromAttributes()

  Sets the cached properties from the attributes.

• getFontMetrics

  @Deprecated
  protected FontMetrics getFontMetrics()

  Deprecated. FontMetrics are not used for glyph rendering when running in the JDK.
  Fetches the FontMetrics used for this view.

• getBackground

  public Color getBackground()

  Fetches the background color to use to render the glyphs. This is implemented to return a cached background color, which defaults to null.

  Overrides:

  getBackground in class GlyphView

  Returns:

  the cached background color

  Since:

  1.3

• getForeground

  public Color getForeground()

  Fetches the foreground color to use to render the glyphs. This is implemented to return a cached foreground color, which defaults to null.

  Overrides:

  getForeground in class GlyphView

  Returns:

  the cached foreground color

  Since:

  1.3

• getFont

  public Font getFont()

  Fetches the font that the glyphs should be based upon. This is implemented to return a cached font.

  Overrides:

  getFont in class GlyphView

  Returns:

  the cached font

• isUnderline

  public boolean isUnderline()

  Determines if the glyphs should be underlined. If true, an underline should be drawn through the baseline. This is implemented to return the cached underline property.

  When you request this property, LabelView re-syncs its state with the properties of the Element's AttributeSet. If Element's AttributeSet does not have this property set, it will revert to false.

  Overrides:

  isUnderline in class GlyphView

  Returns:

  the value of the cached underline property

  Since:

  1.3

• isStrikeThrough

  public boolean isStrikeThrough()

  Determines if the glyphs should have a strikethrough line. If true, a line should be drawn through the center of the glyphs. This is implemented to return the cached strikeThrough property.

  When you request this property, LabelView re-syncs its state with the properties of the Element's AttributeSet. If Element's AttributeSet does not have this property set, it will revert to false.

  Overrides:

  isStrikeThrough in class GlyphView

  Returns:

  the value of the cached strikeThrough property

  Since:

  1.3

• isSubscript

  public boolean isSubscript()

  Determines if the glyphs should be rendered as superscript.

  Overrides:

  isSubscript in class GlyphView

  Returns:

  the value of the cached subscript property

  When you request this property, LabelView re-syncs its state with the properties of the Element's AttributeSet. If Element's AttributeSet does not have this property set, it will revert to false.

  Since:

  1.3

• isSuperscript

  public boolean isSuperscript()

  Determines if the glyphs should be rendered as subscript.

  When you request this property, LabelView re-syncs its state with the properties of the Element's AttributeSet. If Element's AttributeSet does not have this property set, it will revert to false.

  Overrides:

  isSuperscript in class GlyphView

  Returns:

  the value of the cached superscript property

  Since:

  1.3

• changedUpdate

  public void changedUpdate(DocumentEvent e,
                            Shape a,
                            ViewFactory f)

  Gives notification from the document that attributes were changed in a location that this view is responsible for.

  Overrides:

  changedUpdate in class GlyphView

  Parameters:

  e - the change information from the associated document

  a - the current allocation of the view

  f - the factory to use to rebuild if the view has children

  See Also:

  View.changedUpdate(javax.swing.event.DocumentEvent, java.awt.Shape, javax.swing.text.ViewFactory)