Examples with StandardGlyphVector sun.font.StandardGlyphVector used on opensource projects

Example 1 with StandardGlyphVector

use of sun.font.StandardGlyphVector in project jdk8u_jdk by JetBrains.

the class Font method layoutGlyphVector.

/**
     * Returns a new <code>GlyphVector</code> object, performing full
     * layout of the text if possible.  Full layout is required for
     * complex text, such as Arabic or Hindi.  Support for different
     * scripts depends on the font and implementation.
     * <p>
     * Layout requires bidi analysis, as performed by
     * <code>Bidi</code>, and should only be performed on text that
     * has a uniform direction.  The direction is indicated in the
     * flags parameter,by using LAYOUT_RIGHT_TO_LEFT to indicate a
     * right-to-left (Arabic and Hebrew) run direction, or
     * LAYOUT_LEFT_TO_RIGHT to indicate a left-to-right (English)
     * run direction.
     * <p>
     * In addition, some operations, such as Arabic shaping, require
     * context, so that the characters at the start and limit can have
     * the proper shapes.  Sometimes the data in the buffer outside
     * the provided range does not have valid data.  The values
     * LAYOUT_NO_START_CONTEXT and LAYOUT_NO_LIMIT_CONTEXT can be
     * added to the flags parameter to indicate that the text before
     * start, or after limit, respectively, should not be examined
     * for context.
     * <p>
     * All other values for the flags parameter are reserved.
     *
     * @param frc the specified <code>FontRenderContext</code>
     * @param text the text to layout
     * @param start the start of the text to use for the <code>GlyphVector</code>
     * @param limit the limit of the text to use for the <code>GlyphVector</code>
     * @param flags control flags as described above
     * @return a new <code>GlyphVector</code> representing the text between
     * start and limit, with glyphs chosen and positioned so as to best represent
     * the text
     * @throws ArrayIndexOutOfBoundsException if start or limit is
     * out of bounds
     * @see java.text.Bidi
     * @see #LAYOUT_LEFT_TO_RIGHT
     * @see #LAYOUT_RIGHT_TO_LEFT
     * @see #LAYOUT_NO_START_CONTEXT
     * @see #LAYOUT_NO_LIMIT_CONTEXT
     * @since 1.4
     */
public GlyphVector layoutGlyphVector(FontRenderContext frc, char[] text, int start, int limit, int flags) {
    // !!! no custom layout engines
    GlyphLayout gl = GlyphLayout.get(null);
    StandardGlyphVector gv = gl.layout(this, frc, text, start, limit - start, flags, null);
    GlyphLayout.done(gl);
    return gv;
}

Example 2 with StandardGlyphVector

use of sun.font.StandardGlyphVector in project jdk8u_jdk by JetBrains.

the class Font method getStringBounds.

/**
     * Returns the logical bounds of the specified array of characters
     * in the specified <code>FontRenderContext</code>.  The logical
     * bounds contains the origin, ascent, advance, and height, which
     * includes the leading.  The logical bounds does not always enclose
     * all the text.  For example, in some languages and in some fonts,
     * accent marks can be positioned above the ascent or below the
     * descent.  To obtain a visual bounding box, which encloses all the
     * text, use the {@link TextLayout#getBounds() getBounds} method of
     * <code>TextLayout</code>.
     * <p>Note: The returned bounds is in baseline-relative coordinates
     * (see {@link java.awt.Font class notes}).
     * @param chars an array of characters
     * @param beginIndex the initial offset in the array of
     * characters
     * @param limit the end offset in the array of characters
     * @param frc the specified <code>FontRenderContext</code>
     * @return a <code>Rectangle2D</code> that is the bounding box of the
     * specified array of characters in the specified
     * <code>FontRenderContext</code>.
     * @throws IndexOutOfBoundsException if <code>beginIndex</code> is
     *         less than zero, or <code>limit</code> is greater than the
     *         length of <code>chars</code>, or <code>beginIndex</code>
     *         is greater than <code>limit</code>.
     * @see FontRenderContext
     * @see Font#createGlyphVector
     * @since 1.2
     */
public Rectangle2D getStringBounds(char[] chars, int beginIndex, int limit, FontRenderContext frc) {
    if (beginIndex < 0) {
        throw new IndexOutOfBoundsException("beginIndex: " + beginIndex);
    }
    if (limit > chars.length) {
        throw new IndexOutOfBoundsException("limit: " + limit);
    }
    if (beginIndex > limit) {
        throw new IndexOutOfBoundsException("range length: " + (limit - beginIndex));
    }
    // this code should be in textlayout
    // quick check for simple text, assume GV ok to use if simple
    boolean simple = values == null || (values.getKerning() == 0 && values.getLigatures() == 0 && values.getBaselineTransform() == null);
    if (simple) {
        simple = !FontUtilities.isComplexText(chars, beginIndex, limit);
    }
    if (simple) {
        GlyphVector gv = new StandardGlyphVector(this, chars, beginIndex, limit - beginIndex, frc);
        return gv.getLogicalBounds();
    } else {
        // need char array constructor on textlayout
        String str = new String(chars, beginIndex, limit - beginIndex);
        TextLayout tl = new TextLayout(str, this, frc);
        return new Rectangle2D.Float(0, -tl.getAscent(), tl.getAdvance(), tl.getAscent() + tl.getDescent() + tl.getLeading());
    }
}