styleconstants.java

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   * 
   * @return The left indentation.
   * 
   * @see #setLeftIndent(MutableAttributeSet, float)
   */    
  public static float getLeftIndent(AttributeSet a)
  {
    Float f = (Float) a.getAttribute(LeftIndent);
    if (f != null)
      return f.floatValue();
    else
      return 0.0f;
  } 

  /**
   * Returns the line spacing specified in the given attributes, or 
   * <code>0.0f</code> if no line spacing is specified.
   * 
   * @param a  the attribute set (<code>null</code> not permitted).
   * 
   * @return The line spacing.
   * 
   * @see #setLineSpacing(MutableAttributeSet, float)
   */    
  public static float getLineSpacing(AttributeSet a)
  {
    Float f = (Float) a.getAttribute(LineSpacing);
    if (f != null)
      return f.floatValue();
    else
      return 0.0f;
  } 

  /**
   * Returns the right indentation specified in the given attributes, or 
   * <code>0.0f</code> if no right indentation is specified.
   * 
   * @param a  the attribute set (<code>null</code> not permitted).
   * 
   * @return The right indentation.
   * 
   * @see #setRightIndent(MutableAttributeSet, float)
   */    
  public static float getRightIndent(AttributeSet a)
  {
    Float f = (Float) a.getAttribute(RightIndent);
    if (f != null)
      return f.floatValue();
    else
      return 0.0f;
  } 

  /**
   * Returns the 'space above' specified in the given attributes, or 
   * <code>0.0f</code> if no 'space above' is specified.
   * 
   * @param a  the attribute set (<code>null</code> not permitted).
   * 
   * @return The 'space above'.
   * 
   * @see #setSpaceAbove(MutableAttributeSet, float)
   */    
  public static float getSpaceAbove(AttributeSet a)
  {
    Float f = (Float) a.getAttribute(SpaceAbove);
    if (f != null)
      return f.floatValue();
    else 
      return 0.0f;
  } 

  /**
   * Returns the 'space below' specified in the given attributes, or 
   * <code>0.0f</code> if no 'space below' is specified.
   * 
   * @param a  the attribute set (<code>null</code> not permitted).
   * 
   * @return The 'space below'.
   * 
   * @see #setSpaceBelow(MutableAttributeSet, float)
   */    
  public static float getSpaceBelow(AttributeSet a)
  {
    Float f = (Float) a.getAttribute(SpaceBelow);
    if (f != null)
      return f.floatValue();
    else
      return 0.0f;
  } 

  /**
   * Returns the tab set specified in the given attributes, or 
   * <code>null</code> if no tab set is specified.
   * 
   * @param a  the attribute set (<code>null</code> not permitted).
   * 
   * @return The tab set.
   * 
   * @see #setTabSet(MutableAttributeSet, javax.swing.text.TabSet)
   */    
  public static javax.swing.text.TabSet getTabSet(AttributeSet a)
  {
    // I'm guessing that the fully qualified class name is to differentiate
    // between the TabSet class and the TabSet (attribute) instance on some
    // compiler...
    return (javax.swing.text.TabSet) a.getAttribute(StyleConstants.TabSet);
  } 

  /**
   * Returns the value of the bold flag in the given attributes, or 
   * <code>false</code> if no bold flag is specified.
   * 
   * @param a  the attribute set (<code>null</code> not permitted).
   * 
   * @return The bold flag.
   * 
   * @see #setBold(MutableAttributeSet, boolean)
   */
  public static boolean isBold(AttributeSet a)
  {
    Boolean b = (Boolean) a.getAttribute(Bold);
    if (b != null)
      return b.booleanValue();
    else
      return false;
  } 

  /**
   * Returns the value of the italic flag in the given attributes, or 
   * <code>false</code> if no italic flag is specified.
   * 
   * @param a  the attribute set (<code>null</code> not permitted).
   * 
   * @return The italic flag.
   * 
   * @see #setItalic(MutableAttributeSet, boolean)
   */
  public static boolean isItalic(AttributeSet a)
  {
    Boolean b = (Boolean) a.getAttribute(Italic);
    if (b != null)
      return b.booleanValue();
    else
      return false;
  } 

  /**
   * Returns the value of the strike-through flag in the given attributes, or 
   * <code>false</code> if no strike-through flag is specified.
   * 
   * @param a  the attribute set (<code>null</code> not permitted).
   * 
   * @return The strike-through flag.
   * 
   * @see #setStrikeThrough(MutableAttributeSet, boolean)
   */
  public static boolean isStrikeThrough(AttributeSet a)
  {
    Boolean b = (Boolean) a.getAttribute(StrikeThrough);
    if (b != null)
      return b.booleanValue();
    else
      return false;
  } 

  /**
   * Returns the value of the subscript flag in the given attributes, or 
   * <code>false</code> if no subscript flag is specified.
   * 
   * @param a  the attribute set (<code>null</code> not permitted).
   * 
   * @return The subscript flag.
   * 
   * @see #setSubscript(MutableAttributeSet, boolean)
   */
  public static boolean isSubscript(AttributeSet a)
  {
    Boolean b = (Boolean) a.getAttribute(Subscript);
    if (b != null)
      return b.booleanValue();
    else
      return false;
  } 

  /**
   * Returns the value of the superscript flag in the given attributes, or 
   * <code>false</code> if no superscript flag is specified.
   * 
   * @param a  the attribute set (<code>null</code> not permitted).
   * 
   * @return The superscript flag.
   * 
   * @see #setSuperscript(MutableAttributeSet, boolean)
   */
  public static boolean isSuperscript(AttributeSet a)
  {
    Boolean b = (Boolean) a.getAttribute(Superscript);
    if (b != null)
      return b.booleanValue();
    else 
      return false;
  } 

  /**
   * Returns the value of the underline flag in the given attributes, or 
   * <code>false</code> if no underline flag is specified.
   * 
   * @param a  the attribute set (<code>null</code> not permitted).
   * 
   * @return The underline flag.
   * 
   * @see #setUnderline(MutableAttributeSet, boolean)
   */
  public static boolean isUnderline(AttributeSet a)
  {
    Boolean b = (Boolean) a.getAttribute(Underline);
    if (b != null)
      return b.booleanValue();
    else
      return false;
  } 

  /**
   * Adds an alignment attribute to the specified set.
   * 
   * @param a  the attribute set (<code>null</code> not permitted).
   * @param align  the alignment (typically one of 
   *               {@link StyleConstants#ALIGN_LEFT}, 
   *               {@link StyleConstants#ALIGN_RIGHT}, 
   *               {@link StyleConstants#ALIGN_CENTER} or 
   *               {@link StyleConstants#ALIGN_JUSTIFIED}).
   * 
   * @throws NullPointerException if <code>a</code> is <code>null</code>.
   * 
   * @see #getAlignment(AttributeSet)
   */
  public static void setAlignment(MutableAttributeSet a, int align)
  {
    a.addAttribute(Alignment, new Integer(align));
  } 

  /**
   * Adds a background attribute to the specified set.
   * 
   * @param a  the attribute set (<code>null</code> not permitted).
   * @param bg  the background (<code>null</code> not permitted).
   * 
   * @throws NullPointerException if either argument is <code>null</code>.
   * 
   * @see #getBackground(AttributeSet)
   */
  public static void setBackground(MutableAttributeSet a, Color bg)
  {
    a.addAttribute(Background, bg);
  } 

  /**
   * Adds a bidi-level attribute to the specified set.
   * 
   * @param a  the attribute set (<code>null</code> not permitted).
   * @param lev  the level.
   * 
   * @throws NullPointerException if <code>a</code> is <code>null</code>.
   * 
   * @see #getBidiLevel(AttributeSet)
   */
  public static void setBidiLevel(MutableAttributeSet a, int lev)
  {
    a.addAttribute(BidiLevel, new Integer(lev));
  } 

  /**
   * Adds a bold attribute to the specified set.
   * 
   * @param a  the attribute set (<code>null</code> not permitted).
   * @param b  the new value of the bold attribute.
   * 
   * @throws NullPointerException if <code>a</code> is <code>null</code>.
   * 
   * @see #isBold(AttributeSet)
   */
  public static void setBold(MutableAttributeSet a, boolean b)
  {
    a.addAttribute(Bold, Boolean.valueOf(b));
  } 
  
  /**
   * Adds a component attribute to the specified set.
   * 
   * @param a  the attribute set (<code>null</code> not permitted).
   * @param c  the component (<code>null</code> not permitted).
   * 
   * @throws NullPointerException if either argument is <code>null</code>.
   * 
   * @see #getComponent(AttributeSet)
   */
  public static void setComponent(MutableAttributeSet a, Component c)
  {
    a.addAttribute(ComponentAttribute, c);
  } 

  /**
   * Adds a first line indentation attribute to the specified set.
   * 
   * @param a  the attribute set (<code>null</code> not permitted).
   * @param i  the indentation.
   * 
   * @throws NullPointerException if <code>a</code> is <code>null</code>.
   * 
   * @see #getFirstLineIndent(AttributeSet)
   */
  public static void setFirstLineIndent(MutableAttributeSet a, float i)
  {
    a.addAttribute(FirstLineIndent, new Float(i));
  } 

  /**
   * Adds a font family attribute to the specified set.
   * 
   * @param a  the attribute set (<code>null</code> not permitted).
   * @param fam  the font family name (<code>null</code> not permitted).
   * 
   * @throws NullPointerException if either argument is <code>null</code>.
   * 
   * @see #getFontFamily(AttributeSet)
   */
  public static void setFontFamily(MutableAttributeSet a, String fam)
  {
    a.addAttribute(FontFamily, fam);
  } 

  /**
   * Adds a font size attribute to the specified set.
   * 
   * @param a  the attribute set (<code>null</code> not permitted).
   * @param s  the font size (in points).
   * 
   * @throws NullPointerException if <code>a</code> is <code>null</code>.
   * 
   * @see #getFontSize(AttributeSet)
   */
  public static void setFontSize(MutableAttributeSet a, int s)
  {
    a.addAttribute(FontSize, new Integer(s));
  } 

  /**
   * Adds a foreground color attribute to the specified set.
   * 
   * @param a  the attribute set (<code>null</code> not permitted).
   * @param fg  the foreground color (<code>null</code> not permitted).
   * 
   * @throws NullPointerException if either argument is <code>null</code>.
   * 
   * @see #getForeground(AttributeSet)
   */
  public static void setForeground(MutableAttributeSet a, Color fg)
  {