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

Example 46 with FontRenderContext

use of java.awt.font.FontRenderContext in project smile by haifengl.

the class Graphics method drawTextBaseRatio.

/**
     * Draw a string with given reference point and rotation angle. (0.5, 0.5)
     * is center, (0, 0) is lower left, (1, 0) is upper left, etc.
     * The angle of rotation is in radians. The logical  are proportional to
     * the base coordinates.
     */
public void drawTextBaseRatio(String label, double horizontalReference, double verticalReference, double rotation, double[] coord) {
    int[] sc = projection.screenProjectionBaseRatio(coord);
    int x = sc[0];
    int y = sc[1];
    AffineTransform transform = g2d.getTransform();
    // Corner offset adjustment : Text Offset is used Here
    FontRenderContext frc = g2d.getFontRenderContext();
    Font font = g2d.getFont();
    double w = font.getStringBounds(label, frc).getWidth();
    double h = font.getSize2D();
    if (rotation != 0) {
        g2d.rotate(rotation, x, y);
    }
    x -= (int) (w * horizontalReference);
    y += (int) (h * verticalReference);
    g2d.drawString(label, x, y);
    g2d.setTransform(transform);
}

Example 47 with FontRenderContext

use of java.awt.font.FontRenderContext 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 48 with FontRenderContext

use of java.awt.font.FontRenderContext in project processing by processing.

the class CompositionTextManager method getTextLayout.

private TextLayout getTextLayout(AttributedCharacterIterator text, int committedCount) {
    boolean antialias = Preferences.getBoolean("editor.smooth");
    TextAreaPainter painter = textArea.getPainter();
    // create attributed string with font info.
    AttributedString composed = new AttributedString(text, committedCount, text.getEndIndex());
    Font font = painter.getFontMetrics().getFont();
    composed.addAttribute(TextAttribute.FONT, font);
    // set hint of antialiasing to render target.
    Graphics2D g2d = (Graphics2D) painter.getGraphics();
    g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, antialias ? RenderingHints.VALUE_TEXT_ANTIALIAS_ON : RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
    FontRenderContext frc = g2d.getFontRenderContext();
    Messages.log("debug: FontRenderContext is Antialiased = " + frc.getAntiAliasingHint());
    return new TextLayout(composed.getIterator(), frc);
}

Example 49 with FontRenderContext

use of java.awt.font.FontRenderContext in project processing by processing.

the class InputMethodSupport method getTextLayout.

private TextLayout getTextLayout(AttributedCharacterIterator text, int committedCount) {
    boolean antialias = Preferences.getBoolean("editor.smooth");
    TextAreaPainter painter = textArea.getPainter();
    // create attributed string with font info.
    if (text.getEndIndex() - (text.getBeginIndex() + committedCount) > 0) {
        composedTextString = new AttributedString(text, committedCount, text.getEndIndex(), CUSTOM_IM_ATTRIBUTES);
        Font font = painter.getFontMetrics().getFont();
        TextAreaDefaults defaults = textArea.getDefaults();
        Color bgColor = defaults.lineHighlight ? defaults.lineHighlightColor : defaults.bgcolor;
        composedTextString.addAttribute(TextAttribute.FONT, font);
        composedTextString.addAttribute(TextAttribute.FOREGROUND, defaults.fgcolor);
        composedTextString.addAttribute(TextAttribute.BACKGROUND, bgColor);
    } else {
        composedTextString = new AttributedString("");
        return null;
    }
    // set hint of antialiasing to render target.
    Graphics2D g2d = (Graphics2D) painter.getGraphics();
    g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, antialias ? RenderingHints.VALUE_TEXT_ANTIALIAS_ON : RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
    FontRenderContext frc = g2d.getFontRenderContext();
    if (Base.DEBUG) {
        Messages.log("debug: FontRenderContext is Antialiased = " + frc.getAntiAliasingHint());
    }
    return new TextLayout(composedTextString.getIterator(), frc);
}

Example 50 with FontRenderContext

use of java.awt.font.FontRenderContext 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;
}