Examples with AttributedCharacterIterator java.text.AttributedCharacterIterator used on opensource projects

Example 31 with AttributedCharacterIterator

use of java.text.AttributedCharacterIterator in project eclipse.platform.swt by eclipse.

the class DateTime method getNextField.

/**
 * Given a {@link FieldPosition} searches the next field in the format string
 *
 * @param field
 *            the Field to start from
 * @return the next {@link FieldPosition}
 */
private FieldPosition getNextField(FieldPosition field) {
    AttributedCharacterIterator iterator = dateFormat.formatToCharacterIterator(calendar.getTime());
    FieldPosition first = null;
    boolean found = false;
    while (iterator.current() != CharacterIterator.DONE) {
        FieldPosition current = getFieldPosition(iterator);
        iterator.setIndex(iterator.getRunLimit());
        if (current.getFieldAttribute() == null) {
            continue;
        }
        if (found) {
            return current;
        }
        if (first == null) {
            first = current;
        }
        if (isSameField(current, field)) {
            found = true;
        }
    }
    return first;
}

Example 32 with AttributedCharacterIterator

use of java.text.AttributedCharacterIterator in project eclipse.platform.swt by eclipse.

the class DateTime method onNumberKeyInput.

boolean onNumberKeyInput(int key) {
    if (currentField == null) {
        return false;
    }
    int fieldName = getCalendarField(currentField);
    StringBuffer prefix = new StringBuffer();
    StringBuffer current = new StringBuffer();
    StringBuffer suffix = new StringBuffer();
    AttributedCharacterIterator iterator = dateFormat.formatToCharacterIterator(calendar.getTime());
    char c = iterator.first();
    do {
        if (isSameField(currentField, getFieldPosition(iterator))) {
            current.append(c);
        } else if (current.length() == 0) {
            prefix.append(c);
        } else {
            suffix.append(c);
        }
    } while ((c = iterator.next()) != CharacterIterator.DONE);
    if (typeBufferPos < 0) {
        typeBuffer.setLength(0);
        typeBuffer.append(current);
        typeBufferPos = 0;
    }
    if (key == GDK.GDK_BackSpace) {
        if (typeBufferPos > 0 && typeBufferPos <= typeBuffer.length()) {
            typeBuffer.deleteCharAt(typeBufferPos - 1);
            typeBufferPos--;
        }
    } else if (key == GDK.GDK_Delete) {
        if (typeBufferPos >= 0 && typeBufferPos < typeBuffer.length()) {
            typeBuffer.deleteCharAt(typeBufferPos);
        }
    } else {
        char newText = keyToString(key);
        if (!Character.isAlphabetic(newText) && !Character.isDigit(newText)) {
            return false;
        }
        if (fieldName == Calendar.AM_PM) {
            if (dateFormat instanceof SimpleDateFormat) {
                String[] amPmStrings = ((SimpleDateFormat) dateFormat).getDateFormatSymbols().getAmPmStrings();
                if (amPmStrings[Calendar.AM].charAt(0) == newText) {
                    setTextField(currentField, Calendar.AM);
                    return false;
                } else if (amPmStrings[Calendar.PM].charAt(0) == newText) {
                    setTextField(currentField, Calendar.PM);
                    return false;
                }
            }
        }
        if (typeBufferPos < typeBuffer.length()) {
            typeBuffer.replace(typeBufferPos, typeBufferPos + 1, Character.toString(newText));
        } else {
            typeBuffer.append(newText);
        }
        typeBufferPos++;
    }
    StringBuffer newText = new StringBuffer(prefix);
    newText.append(typeBuffer);
    newText.append(suffix);
    setText(newText.toString());
    setSelection(prefix.length() + typeBufferPos, prefix.length() + typeBuffer.length());
    currentField.setBeginIndex(prefix.length());
    currentField.setEndIndex(prefix.length() + typeBuffer.length());
    return false;
}

Example 33 with AttributedCharacterIterator

use of java.text.AttributedCharacterIterator in project OpenNotebook by jaltekruse.

the class AnswerBoxGUI method drawMathObject.

public void drawMathObject(AnswerBoxObject object, Graphics g, Point pageOrigin, float zoomLevel) {
    ScaledSizeAndPosition sap = getSizeAndPositionWithFontSize(object, pageOrigin, zoomLevel, object.getFontSize());
    // TODO - decide how extra whitespace should be handled, should it always be stored?
    // students may use it to format a multi-line answer
    // although useful whitespace will likely not coming at the very beginning or very end
    // of an answer
    List<? extends MathObjectAttribute> correctAnswers = object.getListWithName(AnswerBoxObject.CORRECT_ANSWERS).getValues();
    if (!object.getStudentAnswer().trim().equals("") || !correctAnswers.isEmpty()) {
        Font f = g.getFont();
        g.setColor(new Color(150, 210, 255));
        g.fillRect(sap.getxOrigin(), sap.getyOrigin(), sap.getWidth(), sap.getHeight());
        String message = object.getStudentAnswer();
        for (MathObjectAttribute mAtt : correctAnswers) {
            message += mAtt.getValue().toString() + ";";
        }
        message = message.substring(0, message.length() - 1);
        if (message.isEmpty()) {
            // cannot have an empty string in AttributedString
            message = " ";
        }
        g.setFont(f.deriveFont(sap.getFontSize()));
        g.setColor(Color.BLACK);
        Graphics2D graphics2D = (Graphics2D) g;
        GraphicsEnvironment.getLocalGraphicsEnvironment();
        AttributedString messageAS = new AttributedString(message);
        messageAS.addAttribute(TextAttribute.FONT, g.getFont());
        AttributedCharacterIterator messageIterator = messageAS.getIterator();
        FontRenderContext messageFRC = graphics2D.getFontRenderContext();
        LineBreakMeasurer messageLBM = new LineBreakMeasurer(messageIterator, messageFRC);
        Insets insets = new Insets(2, 2, 2, 2);
        float wrappingWidth = sap.getWidth() - insets.left - insets.right;
        float x = sap.getxOrigin() + insets.left;
        float y = sap.getyOrigin() + insets.top;
        while (messageLBM.getPosition() < messageIterator.getEndIndex()) {
            TextLayout textLayout = messageLBM.nextLayout(wrappingWidth);
            y += textLayout.getAscent();
            textLayout.draw(graphics2D, x, y);
            y += textLayout.getDescent() + textLayout.getLeading();
            x = sap.getxOrigin() + insets.left;
        }
        g.setFont(f);
    } else {
        g.setColor(new Color(230, 230, 230));
        g.fillRect(sap.getxOrigin(), sap.getyOrigin(), sap.getWidth(), sap.getHeight());
    }
    g.setColor(Color.BLACK);
    g.drawRect(sap.getxOrigin(), sap.getyOrigin(), sap.getWidth(), sap.getHeight());
}

Example 34 with AttributedCharacterIterator

use of java.text.AttributedCharacterIterator in project j2objc by google.

the class DecimalFormatTest method test_formatToCharacterIterator.

public void test_formatToCharacterIterator() throws Exception {
    AttributedCharacterIterator iterator;
    int[] runStarts;
    int[] runLimits;
    String result;
    char current;
    // BigInteger.
    iterator = new DecimalFormat().formatToCharacterIterator(new BigInteger("123456789"));
    runStarts = new int[] { 0, 0, 0, 3, 4, 4, 4, 7, 8, 8, 8 };
    runLimits = new int[] { 3, 3, 3, 4, 7, 7, 7, 8, 11, 11, 11 };
    result = "123,456,789";
    current = iterator.current();
    for (int i = 0; i < runStarts.length; i++) {
        assertEquals("wrong start @" + i, runStarts[i], iterator.getRunStart());
        assertEquals("wrong limit @" + i, runLimits[i], iterator.getRunLimit());
        assertEquals("wrong char @" + i, result.charAt(i), current);
        current = iterator.next();
    }
    assertEquals(0, iterator.getBeginIndex());
    assertEquals(11, iterator.getEndIndex());
    // For BigDecimal with multiplier test.
    DecimalFormat df = new DecimalFormat();
    df.setMultiplier(10);
    iterator = df.formatToCharacterIterator(new BigDecimal("12345678901234567890"));
    result = "123,456,789,012,345,678,900";
    current = iterator.current();
    for (int i = 0; i < result.length(); i++) {
        assertEquals("wrong char @" + i, result.charAt(i), current);
        current = iterator.next();
    }
    // For BigDecimal with multiplier test.
    df = new DecimalFormat();
    df.setMultiplier(-1);
    df.setMaximumFractionDigits(20);
    iterator = df.formatToCharacterIterator(new BigDecimal("1.23456789012345678901"));
    result = "-1.23456789012345678901";
    current = iterator.current();
    for (int i = 0; i < result.length(); i++) {
        assertEquals("wrong char @" + i, result.charAt(i), current);
        current = iterator.next();
    }
    iterator = new DecimalFormat().formatToCharacterIterator(new BigDecimal("1.23456789E301"));
    runStarts = new int[] { 0, 0, 2, 3, 3, 3, 6, 7, 7, 7, 10, 11, 11, 11, 14 };
    runLimits = new int[] { 2, 2, 3, 6, 6, 6, 7, 10, 10, 10, 11, 14, 14, 14, 15 };
    // 000,000,000,000....
    result = "12,345,678,900,";
    current = iterator.current();
    for (int i = 0; i < runStarts.length; i++) {
        assertEquals("wrong start @" + i, runStarts[i], iterator.getRunStart());
        assertEquals("wrong limit @" + i, runLimits[i], iterator.getRunLimit());
        assertEquals("wrong char @" + i, result.charAt(i), current);
        current = iterator.next();
    }
    assertEquals(0, iterator.getBeginIndex());
    assertEquals(402, iterator.getEndIndex());
    iterator = new DecimalFormat().formatToCharacterIterator(new BigDecimal("1.2345678E4"));
    runStarts = new int[] { 0, 0, 2, 3, 3, 3, 6, 7, 7, 7 };
    runLimits = new int[] { 2, 2, 3, 6, 6, 6, 7, 10, 10, 10 };
    result = "12,345.678";
    current = iterator.current();
    for (int i = 0; i < runStarts.length; i++) {
        assertEquals("wrong start @" + i, runStarts[i], iterator.getRunStart());
        assertEquals("wrong limit @" + i, runLimits[i], iterator.getRunLimit());
        assertEquals("wrong char @" + i, result.charAt(i), current);
        current = iterator.next();
    }
    assertEquals(0, iterator.getBeginIndex());
    assertEquals(10, iterator.getEndIndex());
}

Example 35 with AttributedCharacterIterator

use of java.text.AttributedCharacterIterator in project j2objc by google.

the class Support_Format method findFields.

/**
   * finds attributes with regards to char index in this
   * AttributedCharacterIterator, and puts them in a vector
   *
   * @param iterator
   * @return a vector, each entry in this vector are of type FieldContainer,
   *       which stores start and end indexes and an attribute this range has
   */
protected static Vector<FieldContainer> findFields(AttributedCharacterIterator iterator) {
    Vector<FieldContainer> result = new Vector<FieldContainer>();
    while (iterator.getIndex() != iterator.getEndIndex()) {
        int start = iterator.getRunStart();
        int end = iterator.getRunLimit();
        Iterator<Attribute> it = iterator.getAttributes().keySet().iterator();
        while (it.hasNext()) {
            AttributedCharacterIterator.Attribute attribute = it.next();
            Object value = iterator.getAttribute(attribute);
            result.add(new FieldContainer(start, end, attribute, value));
        // System.out.println(start + " " + end + ": " + attribute + ",
        // " + value );
        // System.out.println("v.add(new FieldContainer(" + start +"," +
        // end +"," + attribute+ "," + value+ "));");
        }
        iterator.setIndex(end);
    }
    return result;
}