Example usage for java.text AttributedCharacterIterator first

Introduction

In this page you can find the example usage for java.text AttributedCharacterIterator first.

Prototype

public char first();

Source Link

Document

Sets the position to getBeginIndex() and returns the character at that position.

Usage

From source file:AttributedStringUtilities.java

/**
 * Tests two attributed strings for equality.
 * // w w w.  j  a v a  2 s.c  o  m
 * @param s1
 *          string 1 (<code>null</code> permitted).
 * @param s2
 *          string 2 (<code>null</code> permitted).
 * 
 * @return <code>true</code> if <code>s1</code> and <code>s2</code> are
 *         equal or both <code>null</code>, and <code>false</code>
 *         otherwise.
 */
public static boolean equal(AttributedString s1, AttributedString s2) {
    if (s1 == null) {
        return (s2 == null);
    }
    if (s2 == null) {
        return false;
    }
    AttributedCharacterIterator it1 = s1.getIterator();
    AttributedCharacterIterator it2 = s2.getIterator();
    char c1 = it1.first();
    char c2 = it2.first();
    int start = 0;
    while (c1 != CharacterIterator.DONE) {
        int limit1 = it1.getRunLimit();
        int limit2 = it2.getRunLimit();
        if (limit1 != limit2) {
            return false;
        }
        // if maps aren't equivalent, return false
        Map m1 = it1.getAttributes();
        Map m2 = it2.getAttributes();
        if (!m1.equals(m2)) {
            return false;
        }
        // now check characters in the run are the same
        for (int i = start; i < limit1; i++) {
            if (c1 != c2) {
                return false;
            }
            c1 = it1.next();
            c2 = it2.next();
        }
        start = limit1;
    }
    return c2 == CharacterIterator.DONE;
}

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From source file:Main.java

/**
 * Serialises an <code>AttributedString</code> object.
 *
 * @param as  the attributed string object (<code>null</code> permitted).
 * @param stream  the output stream (<code>null</code> not permitted).
 *
 * @throws IOException if there is an I/O error.
 *//*from www. j  a  v  a 2 s .c om*/
public static void writeAttributedString(AttributedString as, ObjectOutputStream stream) throws IOException {

    if (stream == null) {
        throw new IllegalArgumentException("Null 'stream' argument.");
    }
    if (as != null) {
        stream.writeBoolean(false);
        AttributedCharacterIterator aci = as.getIterator();
        // build a plain string from aci
        // then write the string
        StringBuffer plainStr = new StringBuffer();
        char current = aci.first();
        while (current != CharacterIterator.DONE) {
            plainStr = plainStr.append(current);
            current = aci.next();
        }
        stream.writeObject(plainStr.toString());

        // then write the attributes and limits for each run
        current = aci.first();
        int begin = aci.getBeginIndex();
        while (current != CharacterIterator.DONE) {
            // write the current character - when the reader sees that this
            // is not CharacterIterator.DONE, it will know to read the
            // run limits and attributes
            stream.writeChar(current);

            // now write the limit, adjusted as if beginIndex is zero
            int limit = aci.getRunLimit();
            stream.writeInt(limit - begin);

            // now write the attribute set
            Map atts = new HashMap(aci.getAttributes());
            stream.writeObject(atts);
            current = aci.setIndex(limit);
        }
        // write a character that signals to the reader that all runs
        // are done...
        stream.writeChar(CharacterIterator.DONE);
    } else {
        // write a flag that indicates a null
        stream.writeBoolean(true);
    }

}

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From source file:forge.view.arcane.util.OutlinedLabel.java

/** {@inheritDoc} */
@Override//from   w ww  .  j a va2 s.c  om
public final void paint(final Graphics g) {
    if (getText().length() == 0) {
        return;
    }

    Dimension size = getSize();
    //
    //        if( size.width < 50 ) {
    //            g.setColor(Color.cyan);
    //            g.drawRect(0, 0, size.width-1, size.height-1);
    //        }

    Graphics2D g2d = (Graphics2D) g;

    g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);

    int textX = outlineSize, textY = 0;
    int wrapWidth = Math.max(0, wrap ? size.width - outlineSize * 2 : Integer.MAX_VALUE);

    final String text = getText();
    AttributedString attributedString = new AttributedString(text);
    if (!StringUtils.isEmpty(text)) {
        attributedString.addAttribute(TextAttribute.FONT, getFont());
    }
    AttributedCharacterIterator charIterator = attributedString.getIterator();
    FontRenderContext fontContext = g2d.getFontRenderContext();

    LineBreakMeasurer measurer = new LineBreakMeasurer(charIterator,
            BreakIterator.getWordInstance(Locale.ENGLISH), fontContext);
    int lineCount = 0;
    while (measurer.getPosition() < charIterator.getEndIndex()) {
        measurer.nextLayout(wrapWidth);
        lineCount++;
        if (lineCount > 2) {
            break;
        }
    }
    charIterator.first();
    // Use char wrap if word wrap would cause more than two lines of text.
    if (lineCount > 2) {
        measurer = new LineBreakMeasurer(charIterator, BreakIterator.getCharacterInstance(Locale.ENGLISH),
                fontContext);
    } else {
        measurer.setPosition(0);
    }
    while (measurer.getPosition() < charIterator.getEndIndex()) {
        TextLayout textLayout = measurer.nextLayout(wrapWidth);
        float ascent = textLayout.getAscent();
        textY += ascent; // Move down to baseline.

        g2d.setColor(outlineColor);
        g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.8f));

        textLayout.draw(g2d, textX + outlineSize, textY - outlineSize);
        textLayout.draw(g2d, textX + outlineSize, textY + outlineSize);
        textLayout.draw(g2d, textX - outlineSize, textY - outlineSize);
        textLayout.draw(g2d, textX - outlineSize, textY + outlineSize);

        g2d.setColor(getForeground());
        g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 1.0f));
        textLayout.draw(g2d, textX, textY);

        // Move down to top of next line.
        textY += textLayout.getDescent() + textLayout.getLeading();
    }
}

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From source file:org.jfree.experimental.swt.SWTGraphics2D.java

/**
 * Draws a string at the specified position.
 *
 * @param iterator  the string./*from www  .ja va 2s  .c  om*/
 * @param x  the x-coordinate.
 * @param y  the y-coordinate.
 */
public void drawString(AttributedCharacterIterator iterator, int x, int y) {
    // for now we simply want to extract the chars from the iterator
    // and call an unstyled text renderer
    StringBuffer sb = new StringBuffer();
    int numChars = iterator.getEndIndex() - iterator.getBeginIndex();
    char c = iterator.first();
    for (int i = 0; i < numChars; i++) {
        sb.append(c);
        c = iterator.next();
    }
    drawString(new String(sb), x, y);
}

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From source file:org.apache.fop.svg.AbstractFOPTextPainter.java

/**
 * Paint a single text run on the Graphics2D at a given location.
 * @param run the text run to paint// w  w  w  . j a v a2  s  .  c  o m
 * @param g2d the Graphics2D to paint to
 * @param loc the current location of the "cursor"
 * @return the new location of the "cursor" after painting the text run
 */
protected Point2D paintTextRun(StrokingTextPainter.TextRun run, Graphics2D g2d, Point2D loc) {
    AttributedCharacterIterator aci = run.getACI();
    aci.first();

    updateLocationFromACI(aci, loc);
    AffineTransform at = g2d.getTransform();
    loc = at.transform(loc, null);

    // font
    Font font = getFont(aci);
    if (font != null) {
        nativeTextHandler.setOverrideFont(font);
    }

    // color
    TextPaintInfo tpi = (TextPaintInfo) aci
            .getAttribute(GVTAttributedCharacterIterator.TextAttribute.PAINT_INFO);
    if (tpi == null) {
        return loc;
    }
    Paint foreground = tpi.fillPaint;
    if (foreground instanceof Color) {
        Color col = (Color) foreground;
        g2d.setColor(col);
    }
    g2d.setPaint(foreground);

    // text anchor
    TextNode.Anchor anchor = (TextNode.Anchor) aci
            .getAttribute(GVTAttributedCharacterIterator.TextAttribute.ANCHOR_TYPE);

    // text
    String txt = getText(aci);
    float advance = getStringWidth(txt, font);
    float tx = 0;
    if (anchor != null) {
        switch (anchor.getType()) {
        case TextNode.Anchor.ANCHOR_MIDDLE:
            tx = -advance / 2;
            break;
        case TextNode.Anchor.ANCHOR_END:
            tx = -advance;
            break;
        default: //nop
        }
    }

    // draw string
    double x = loc.getX();
    double y = loc.getY();
    try {
        try {
            nativeTextHandler.drawString(g2d, txt, (float) x + tx, (float) y);
        } catch (IOException ioe) {
            if (g2d instanceof AFPGraphics2D) {
                ((AFPGraphics2D) g2d).handleIOException(ioe);
            }
        }
    } finally {
        nativeTextHandler.setOverrideFont(null);
    }
    loc.setLocation(loc.getX() + advance, loc.getY());
    return loc;
}

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From source file:org.apache.fop.svg.AbstractFOPTextPainter.java

/**
 * Extract the raw text from an ACI./*w  ww  .  j  av  a 2  s  .co m*/
 * @param aci ACI to inspect
 * @return the extracted text
 */
protected String getText(AttributedCharacterIterator aci) {
    StringBuffer sb = new StringBuffer(aci.getEndIndex() - aci.getBeginIndex());
    for (char c = aci.first(); c != CharacterIterator.DONE; c = aci.next()) {
        sb.append(c);
    }
    return sb.toString();
}

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From source file:org.apache.fop.svg.ACIUtils.java

/**
 * Dumps the contents of an ACI to System.out. Used for debugging only.
 * @param aci the ACI to dump//from ww  w . ja v  a 2  s  .co m
 */
public static void dumpAttrs(AttributedCharacterIterator aci) {
    aci.first();
    Set<Entry<Attribute, Object>> entries = aci.getAttributes().entrySet();
    for (Map.Entry<Attribute, Object> entry : entries) {
        if (entry.getValue() != null) {
            System.out.println(entry.getKey() + ": " + entry.getValue());
        }
    }
    int start = aci.getBeginIndex();
    System.out.print("AttrRuns: ");
    while (aci.current() != CharacterIterator.DONE) {
        int end = aci.getRunLimit();
        System.out.print("" + (end - start) + ", ");
        aci.setIndex(end);
        if (start == end) {
            break;
        }
        start = end;
    }
    System.out.println("");
}

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From source file:org.apache.fop.svg.NativeTextPainter.java

/**
 * Collects all characters from an {@link AttributedCharacterIterator}.
 * @param runaci the character iterator/*from   w  w  w .j ava 2 s  .c  o  m*/
 * @return the characters
 */
protected CharSequence collectCharacters(AttributedCharacterIterator runaci) {
    StringBuffer chars = new StringBuffer();
    for (runaci.first(); runaci.getIndex() < runaci.getEndIndex();) {
        chars.append(runaci.current());
        runaci.next();
    }
    return chars;
}

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From source file:org.pentaho.reporting.engine.classic.core.modules.output.pageable.pdf.internal.PdfGraphics2D.java

/**
 * @see Graphics2D#drawString(AttributedCharacterIterator, float, float)
 *///from   w  w w  .j  a  v  a 2s  .com
@Override
public void drawString(final AttributedCharacterIterator iter, float x, final float y) {
    /*
     * StringBuffer sb = new StringBuffer(); for(char c = iter.first(); c != AttributedCharacterIterator.DONE; c =
     * iter.next()) { sb.append(c); } drawString(sb.toString(),x,y);
     */
    final StringBuilder stringbuffer = new StringBuilder(iter.getEndIndex());
    for (char c = iter.first(); c != AttributedCharacterIterator.DONE; c = iter.next()) {
        if (iter.getIndex() == iter.getRunStart()) {
            if (stringbuffer.length() > 0) {
                drawString(stringbuffer.toString(), x, y);
                final FontMetrics fontmetrics = getFontMetrics();
                x = (float) (x + fontmetrics.getStringBounds(stringbuffer.toString(), this).getWidth());
                stringbuffer.delete(0, stringbuffer.length());
            }
            doAttributes(iter);
        }
        stringbuffer.append(c);
    }

    drawString(stringbuffer.toString(), x, y);
    underline = false;
}

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