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package javax.swing.text;

import java.awt.Font;
import java.awt.Color;


Interface for a generic styled document.

Author: Timothy Prinzing
/**
 * Interface for a generic styled document.
 *
 * @author  Timothy Prinzing
 */
public interface StyledDocument extends Document {

    
Adds a new style into the logical style hierarchy.  Style attributes
resolve from bottom up so an attribute specified in a child
will override an attribute specified in the parent.

Params:
  • nm –   the name of the style (must be unique within the
  collection of named styles).  The name may be null if the style
  is unnamed, but the caller is responsible
  for managing the reference returned as an unnamed style can't
  be fetched by name.  An unnamed style may be useful for things
  like character attribute overrides such as found in a style
  run.
  • parent – the parent style.  This may be null if unspecified
  attributes need not be resolved in some other style.
Returns:the style
/**
     * Adds a new style into the logical style hierarchy.  Style attributes
     * resolve from bottom up so an attribute specified in a child
     * will override an attribute specified in the parent.
     *
     * @param nm   the name of the style (must be unique within the
     *   collection of named styles).  The name may be null if the style
     *   is unnamed, but the caller is responsible
     *   for managing the reference returned as an unnamed style can't
     *   be fetched by name.  An unnamed style may be useful for things
     *   like character attribute overrides such as found in a style
     *   run.
     * @param parent the parent style.  This may be null if unspecified
     *   attributes need not be resolved in some other style.
     * @return the style
     */
    public Style addStyle(String nm, Style parent);

    
Removes a named style previously added to the document.

Params:
  • nm –  the name of the style to remove
/**
     * Removes a named style previously added to the document.
     *
     * @param nm  the name of the style to remove
     */
    public void removeStyle(String nm);

    
Fetches a named style previously added.

Params:
  • nm –  the name of the style
Returns:the style
/**
     * Fetches a named style previously added.
     *
     * @param nm  the name of the style
     * @return the style
     */
    public Style getStyle(String nm);

    
Changes the content element attributes used for the given range of
existing content in the document.  All of the attributes
defined in the given Attributes argument are applied to the
given range.  This method can be used to completely remove
all content level attributes for the given range by
giving an Attributes argument that has no attributes defined
and setting replace to true.

Params:
  • offset – the start of the change >= 0
  • length – the length of the change >= 0
  • s –    the non-null attributes to change to.  Any attributes
 defined will be applied to the text for the given range.
  • replace – indicates whether or not the previous
 attributes should be cleared before the new attributes
 as set.  If true, the operation will replace the
 previous attributes entirely.  If false, the new
 attributes will be merged with the previous attributes.
/**
     * Changes the content element attributes used for the given range of
     * existing content in the document.  All of the attributes
     * defined in the given Attributes argument are applied to the
     * given range.  This method can be used to completely remove
     * all content level attributes for the given range by
     * giving an Attributes argument that has no attributes defined
     * and setting replace to true.
     *
     * @param offset the start of the change >= 0
     * @param length the length of the change >= 0
     * @param s    the non-null attributes to change to.  Any attributes
     *  defined will be applied to the text for the given range.
     * @param replace indicates whether or not the previous
     *  attributes should be cleared before the new attributes
     *  as set.  If true, the operation will replace the
     *  previous attributes entirely.  If false, the new
     *  attributes will be merged with the previous attributes.
     */
    public void setCharacterAttributes(int offset, int length, AttributeSet s, boolean replace);

    
Sets paragraph attributes.

Params:
  • offset – the start of the change >= 0
  • length – the length of the change >= 0
  • s –    the non-null attributes to change to.  Any attributes
 defined will be applied to the text for the given range.
  • replace – indicates whether or not the previous
 attributes should be cleared before the new attributes
 are set.  If true, the operation will replace the
 previous attributes entirely.  If false, the new
 attributes will be merged with the previous attributes.
/**
     * Sets paragraph attributes.
     *
     * @param offset the start of the change >= 0
     * @param length the length of the change >= 0
     * @param s    the non-null attributes to change to.  Any attributes
     *  defined will be applied to the text for the given range.
     * @param replace indicates whether or not the previous
     *  attributes should be cleared before the new attributes
     *  are set.  If true, the operation will replace the
     *  previous attributes entirely.  If false, the new
     *  attributes will be merged with the previous attributes.
     */
    public void setParagraphAttributes(int offset, int length, AttributeSet s, boolean replace);

    
Sets the logical style to use for the paragraph at the
given position.  If attributes aren't explicitly set
for character and paragraph attributes they will resolve
through the logical style assigned to the paragraph, which
in turn may resolve through some hierarchy completely
independent of the element hierarchy in the document.

Params:
  • pos – the starting position >= 0
  • s – the style to set
/**
     * Sets the logical style to use for the paragraph at the
     * given position.  If attributes aren't explicitly set
     * for character and paragraph attributes they will resolve
     * through the logical style assigned to the paragraph, which
     * in turn may resolve through some hierarchy completely
     * independent of the element hierarchy in the document.
     *
     * @param pos the starting position >= 0
     * @param s the style to set
     */
    public void setLogicalStyle(int pos, Style s);

    
Gets a logical style for a given position in a paragraph.

Params:
  • p – the position >= 0
Returns:the style
/**
     * Gets a logical style for a given position in a paragraph.
     *
     * @param p the position >= 0
     * @return the style
     */
    public Style getLogicalStyle(int p);

    
Gets the element that represents the paragraph that
encloses the given offset within the document.

Params:
  • pos – the offset >= 0
Returns:the element
/**
     * Gets the element that represents the paragraph that
     * encloses the given offset within the document.
     *
     * @param pos the offset >= 0
     * @return the element
     */
    public Element getParagraphElement(int pos);

    
Gets the element that represents the character that
is at the given offset within the document.

Params:
  • pos – the offset >= 0
Returns:the element
/**
     * Gets the element that represents the character that
     * is at the given offset within the document.
     *
     * @param pos the offset >= 0
     * @return the element
     */
    public Element getCharacterElement(int pos);


    
Takes a set of attributes and turn it into a foreground color
specification.  This might be used to specify things
like brighter, more hue, etc.

Params:
  • attr – the set of attributes
Returns:the color
/**
     * Takes a set of attributes and turn it into a foreground color
     * specification.  This might be used to specify things
     * like brighter, more hue, etc.
     *
     * @param attr the set of attributes
     * @return the color
     */
    public Color getForeground(AttributeSet attr);

    
Takes a set of attributes and turn it into a background color
specification.  This might be used to specify things
like brighter, more hue, etc.

Params:
  • attr – the set of attributes
Returns:the color
/**
     * Takes a set of attributes and turn it into a background color
     * specification.  This might be used to specify things
     * like brighter, more hue, etc.
     *
     * @param attr the set of attributes
     * @return the color
     */
    public Color getBackground(AttributeSet attr);

    
Takes a set of attributes and turn it into a font
specification.  This can be used to turn things like
family, style, size, etc into a font that is available
on the system the document is currently being used on.

Params:
  • attr – the set of attributes
Returns:the font
/**
     * Takes a set of attributes and turn it into a font
     * specification.  This can be used to turn things like
     * family, style, size, etc into a font that is available
     * on the system the document is currently being used on.
     *
     * @param attr the set of attributes
     * @return the font
     */
    public Font getFont(AttributeSet attr);

}