Examples with LineBreakMeasurer java.awt.font.LineBreakMeasurer used on opensource projects

Example 26 with LineBreakMeasurer

use of java.awt.font.LineBreakMeasurer in project frostwire by frostwire.

the class SkinMultilineToolTipUI method calculatePreferredSize.

private Dimension calculatePreferredSize(JComponent c) {
    Dimension dimension;
    try {
        String textAreaText = textArea.getText();
        if (textAreaText == null || textAreaText.isEmpty()) {
            dimension = new Dimension(0, 0);
        } else {
            AttributedString text = new AttributedString(textAreaText);
            Font font = c.getFont();
            FontMetrics fm = c.getFontMetrics(font);
            FontRenderContext frc = fm.getFontRenderContext();
            AttributedCharacterIterator charIt = text.getIterator();
            LineBreakMeasurer lineMeasurer = new LineBreakMeasurer(charIt, frc);
            float formatWidth = (float) (TOOLTIP_WIDTH - 48);
            lineMeasurer.setPosition(charIt.getBeginIndex());
            int noLines = 0;
            while (lineMeasurer.getPosition() < charIt.getEndIndex()) {
                lineMeasurer.nextLayout(formatWidth);
                noLines++;
            }
            if (lineMeasurer.getPosition() < textAreaText.length()) {
                noLines++;
            }
            int width = TOOLTIP_WIDTH;
            int height = fm.getHeight() * noLines + 10;
            dimension = new Dimension(width, height);
        }
    } catch (Throwable e) {
        // in case there is a problem with swing
        dimension = new Dimension(0, 0);
    }
    return dimension;
}

Example 27 with LineBreakMeasurer

use of java.awt.font.LineBreakMeasurer in project hid-serial by rayshobby.

the class StyledString method getLines.

/**
 * Get the text layouts for display if the string has changed since last call
 * to this method regenerate them.
 *
 * @param g2d Graphics2D display context
 * @return a list of text layouts for rendering
 */
public LinkedList<TextLayoutInfo> getLines(Graphics2D g2d) {
    if (font != g2d.getFont()) {
        setFont(g2d.getFont());
        invalidText = true;
    }
    if (invalidText) {
        styledText = new AttributedString(plainText);
        styledText = insertParagraphMarkers(plainText, styledText);
        applyAttributes();
        invalidText = false;
        invalidLayout = true;
    }
    if (invalidLayout) {
        linesInfo.clear();
        if (plainText.length() > 0) {
            textHeight = 0;
            maxLineLength = 0;
            maxLineHeight = 0;
            nbrLines = 0;
            AttributedCharacterIterator paragraph = styledText.getIterator(null, 0, plainText.length());
            FontRenderContext frc = g2d.getFontRenderContext();
            lineMeasurer = new LineBreakMeasurer(paragraph, frc);
            float yposinpara = 0;
            int charssofar = 0;
            while (lineMeasurer.getPosition() < plainText.length()) {
                TextLayout layout = lineMeasurer.nextLayout(wrapWidth);
                float advance = layout.getVisibleAdvance();
                if (justify) {
                    if (justify && advance > justifyRatio * wrapWidth) {
                        // System.out.println(layout.getVisibleAdvance() + "  " + breakWidth + "  "+ layout.get);
                        // If advance > breakWidth then we have a line break
                        float jw = (advance > wrapWidth) ? advance - wrapWidth : wrapWidth;
                        layout = layout.getJustifiedLayout(jw);
                    }
                }
                // Remember the longest and tallest value for a layout so far.
                float lh = getHeight(layout);
                if (lh > maxLineHeight)
                    maxLineHeight = lh;
                textHeight += lh;
                if (advance <= wrapWidth && advance > maxLineLength)
                    maxLineLength = advance;
                // Store layout and line info
                linesInfo.add(new TextLayoutInfo(nbrLines, layout, charssofar, layout.getCharacterCount(), yposinpara));
                charssofar += layout.getCharacterCount();
                yposinpara += lh;
                nbrLines++;
            }
        }
        invalidLayout = false;
    }
    return linesInfo;
}

Example 28 with LineBreakMeasurer

use of java.awt.font.LineBreakMeasurer 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 29 with LineBreakMeasurer

use of java.awt.font.LineBreakMeasurer in project java-swing-tips by aterai.

the class WrappedLabel method paintComponent.

@Override
protected void paintComponent(Graphics g) {
    Graphics2D g2 = (Graphics2D) g.create();
    g2.setPaint(getForeground());
    Rectangle r = SwingUtilities.calculateInnerArea(this, null);
    float x = r.x;
    float y = r.y;
    int w = r.width;
    AttributedString as = new AttributedString(getText());
    as.addAttribute(TextAttribute.FONT, getFont());
    AttributedCharacterIterator aci = as.getIterator();
    FontRenderContext frc = g2.getFontRenderContext();
    LineBreakMeasurer lbm = new LineBreakMeasurer(aci, frc);
    while (lbm.getPosition() < aci.getEndIndex()) {
        TextLayout tl = lbm.nextLayout(w);
        tl.draw(g2, x, y + tl.getAscent());
        y += tl.getDescent() + tl.getLeading() + tl.getAscent();
    }
    g2.dispose();
}