textattribute.java

JAVA基本类源代码,大家可以学习学习!

     * </TABLE>
     */
    public static final TextAttribute BACKGROUND = new TextAttribute("background");

    /**
     * Attribute key for underline adornments.
     *
     * <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="1" 
     *     SUMMARY="Key, Value, Constants, Default, Description, 
     *     and Fallback for TextAttribute UNDERLINE">
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Key</TH>
     * <TD VALIGN="TOP">UNDERLINE</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Value</TH>
     * <TD VALIGN="TOP">Integer</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Constants</TH>
     * <TD VALIGN="TOP">UNDERLINE_ON = 0</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Default</TH>
     * <TD VALIGN="TOP">none</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Description</TH>
     * <TD VALIGN="TOP">An embellishment added to the glyphs rendered by a 
     * font.</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Fallback</TH>
     * <TD VALIGN="TOP"></TD></TR>
     * </TABLE>
     */
    public static final TextAttribute UNDERLINE = new TextAttribute("underline");

    /**
     * Standard underline at the roman baseline for roman text, and below
     * the decenders for other text.
     *
     * @see #UNDERLINE
     */
    public static final Integer UNDERLINE_ON = new Integer((byte)0);

    /**
     * Attribute key for the strikethrough adornment.
     *
     * <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="1"
     *     SUMMARY="Key, Value, Constants, Default, and Description
     *     for TextAttribute STRIKETHROUGH">
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Key</TH>
     * <TD VALIGN="TOP">STRIKETHROUGH</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Value</TH>
     * <TD VALIGN="TOP">Boolean</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Constants</TH>
     * <TD VALIGN="TOP">true = on, false = off</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Default</TH>
     * <TD VALIGN="TOP">off</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Description</TH>
     * <TD VALIGN="TOP">An embellishment added to the glyphs rendered by a 
     * font.</TD></TR>
     * </TABLE>
     */
    public static final TextAttribute STRIKETHROUGH = new TextAttribute("strikethrough");

    /**
     * A single strikethrough.
     *
     * @see #STRIKETHROUGH
     */
    public static final Boolean STRIKETHROUGH_ON = new Boolean(true);

    //
    // Attributes use to control layout of text on a line.
    //

    /**
     * Attribute key for the run direction of the line.
     *
     * <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="1"
     *     SUMMARY="Key, Value, Constants, Default, and Description 
     *     of TextAttribute RUN_DIRECTION">
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Key</TH>
     * <TD VALIGN="TOP">RUN_DIRECTION</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Value</TH>
     * <TD VALIGN="TOP">Boolean</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Constants</TH>
     * <TD VALIGN="TOP">RUN_DIRECTION_LTR = true, RUN_DIRECTION_RTL = false
     * </TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Default</TH>
     * <TD VALIGN="TOP">Use the default Unicode base direction from the BIDI 
     * algorithm.</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Description</TH>
     * <TD VALIGN="TOP"><P>Specifies which base run direction to use when 
     * positioning mixed directional runs within a paragraph. If this value is
     * RUN_DIRECTION_DEFAULT, <code>TextLayout</code> uses the default Unicode
     * base direction from the BIDI algorithm.</P>
     * <P><I>This attribute should have the same value over the whole 
     * paragraph.</I></TD></TR>
     * </TABLE>
     */
    public static final TextAttribute RUN_DIRECTION = new TextAttribute("run_direction");

    /**
     * Left-to-right run direction.
     * @see #RUN_DIRECTION
     */
    public static final Boolean RUN_DIRECTION_LTR = new Boolean(false);

    /**
     * Right-to-left run direction.
     * @see #RUN_DIRECTION
     */
    public static final Boolean RUN_DIRECTION_RTL = new Boolean(true);

    /**
     * Attribute key for the embedding level for nested bidirectional runs.
     *
     * <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="1"
     *     SUMMARY="Key, Value, Limits, Default, and Description 
     *     of TextAttribute BIDI_EMBEDDING">
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Key</TH>
     * <TD VALIGN="TOP">BIDI_EMBEDDING</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Value</TH>
     * <TD VALIGN="TOP">Integer</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Limits</TH>
     * <TD VALIGN="TOP">Positive values 1 through 61 are <I>embedding</I>
     * levels, negative values<BR> through -61 are <I>override</I> levels
     * </TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Default</TH>
     * <TD VALIGN="TOP">Use standard BIDI to compute levels from formatting
     * characters in the text.</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Description</TH>
     * <TD VALIGN="TOP">Specifies the bidi embedding level of the character.
     * When this attribute is present anywhere in a paragraph, then the 
     * Unicode characters RLO, LRO, RLE, LRE, PDF are disregarded in the BIDI 
     * analysis of that paragraph. 
     * See the Unicode Standard v. 2.0, section 3-11.
     * </TD></TR>
     * </TABLE>
     */
    public static final TextAttribute BIDI_EMBEDDING = new TextAttribute("bidi_embedding");

    /**
     * Attribute key for the justification of a paragraph.
     *
     * <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="1"
     *     SUMMARY="Key, Value, Limits, Default, and Description
     *     of TextAttribute JUSTIFICATION">
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Key</TH>
     * <TD VALIGN="TOP">JUSTIFICATION</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Value</TH>
     * <TD VALIGN="TOP">Float</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Limits</TH>
     * <TD VALIGN="TOP">0.0 through1.0</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Default</TH>
     * <TD VALIGN="TOP">1.0</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Description</TH>
     * <TD VALIGN="TOP"><P>Specifies which fraction of the extra space to use 
     * when justification is requested. For example, if the line is 50 points
     * wide and the margins are 70 points apart, a value of 0.5 means that the
     * line is padded to reach a width of 60 points.</P>
     * <P><I>This attribute should have the same value over the whole
     * paragraph.</I></TD></TR>
     * </TABLE>
     */
    public static final TextAttribute JUSTIFICATION = new TextAttribute("justification");

    /**
     * Justify the line to the full requested width.
     * @see #JUSTIFICATION
     */
    public static final Float JUSTIFICATION_FULL = new Float(1.0f);

    /**
     * Do not allow the line to be justified.
     * @see #JUSTIFICATION
     */
    public static final Float JUSTIFICATION_NONE = new Float(0.0f);

    //
    // For use by input method.
    //

    /**
     * Attribute key for input method highlight styles.
     * <p>Values are instances of 
     * {@link java.awt.im.InputMethodHighlight InputMethodHighlight}.
     * These instances should be wrapped in 
     * {@link java.text.Annotation Annotation} instances
     * if segments need to be highlighted separately.
     * <p>
     * Input method highlights are used while text is being composed
     * using an input method. Text editing components should retain them
     * even if they generally only deal with unstyled text, and make them
     * available to the drawing routines.
     * @see java.awt.im.InputMethodHighlight
     */
    public static final TextAttribute INPUT_METHOD_HIGHLIGHT = new TextAttribute("input method highlight");

    /**
     * Attribute key for input method underline adornments.
     *
     * <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="1"
     *     SUMMARY="Key, Value, Limits, Default and Description
     *     of TextAttribute INPUT_METHOD_UNDERLINE">
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Key</TH>
     * <TD VALIGN="TOP">INPUT_METHOD_UNDERLINE</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Value</TH>
     * <TD VALIGN="TOP">Integer</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Constants</TH>
     * <TD VALIGN="TOP">UNDERLINE_LOW_ONE_PIXEL, UNDERLINE_LOW_TWO_PIXEL,
     *     UNDERLINE_LOW_DOTTED, UNDERLINE_LOW_GRAY, UNDERLINE_LOW_DASHED</TD></TR>
     * <TR>
     * <TH VALIGN="TOP" ALIGN="RIGHT"><P ALIGN=RIGHT>Default</TH>
     * <TD VALIGN="TOP">no underline</TD></TR>
     * </TABLE>
     * @since 1.3
     */
    public static final TextAttribute INPUT_METHOD_UNDERLINE
                 = new TextAttribute("input method underline");

    /**
     * Single pixel solid low underline.
     * @see #INPUT_METHOD_UNDERLINE
     * @since 1.3
     */
    public static final Integer UNDERLINE_LOW_ONE_PIXEL = new Integer(1);

    /**
     * Double pixel solid low underline.
     * @see #INPUT_METHOD_UNDERLINE
     * @since 1.3
     */
    public static final Integer UNDERLINE_LOW_TWO_PIXEL = new Integer(2);

    /**
     * Single pixel dotted low underline.
     * @see #INPUT_METHOD_UNDERLINE
     * @since 1.3
     */
    public static final Integer UNDERLINE_LOW_DOTTED = new Integer(3);

    /**
     * Double pixel gray low underline.
     * @see #INPUT_METHOD_UNDERLINE
     * @since 1.3
     */
    public static final Integer UNDERLINE_LOW_GRAY = new Integer(4);

    /**
     * Single pixel dashed low underline.
     * @see #INPUT_METHOD_UNDERLINE
     * @since 1.3
     */
    public static final Integer UNDERLINE_LOW_DASHED = new Integer(5);

    /**
     * Attribute key for swapping foreground and background Paints (or Colors).
     *
     * <p>Values are instances of <code>Boolean</code>.
     * The default is not to swap the foreground and background.
     * If the foreground and background attributes are both defined,
     * this causes them to be swapped when rendering text.  If either is
     * defaulted, the exact effect is undefined--generally it will produce
     * an 'inverted' appearance.
     */
    public static final TextAttribute SWAP_COLORS = new TextAttribute("swap_colors");

    /** Swap foreground and background. */
    public static final Boolean SWAP_COLORS_ON = new Boolean(true);

    /**
     * Attribute key for converting ASCII decimal digits to other decimal ranges.
     *
     * <p>Values are instances of <code>NumericShaping</code>.
     * The default is not to perform numeric shaping.
     */
    public static final TextAttribute NUMERIC_SHAPING = new TextAttribute("numeric_shaping");
}