Example usage for java.awt Graphics2D getFontRenderContext

Introduction

In this page you can find the example usage for java.awt Graphics2D getFontRenderContext.

Prototype

public abstract FontRenderContext getFontRenderContext();

Source Link

Document

Get the rendering context of the Font within this Graphics2D context.

Usage

From source file:Starry.java

public void paintComponent(Graphics g) {
    super.paintComponent(g);
    setBackground(Color.white);/*  w ww .j a  v  a 2s.  c  o m*/
    w = getSize().width;
    h = getSize().height;
    Graphics2D g2;
    g2 = (Graphics2D) g;

    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

    g2.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);

    FontRenderContext frc = g2.getFontRenderContext();
    Font f = new Font("Helvetica", 1, w / 10);
    String s = new String("The Starry Night");
    TextLayout textTl = new TextLayout(s, f, frc);
    AffineTransform transform = new AffineTransform();
    Shape outline = textTl.getOutline(null);
    Rectangle r = outline.getBounds();
    transform = g2.getTransform();
    transform.translate(w / 2 - (r.width / 2), h / 2 + (r.height / 2));
    g2.transform(transform);
    g2.setColor(Color.blue);
    g2.draw(outline);
    g2.setClip(outline);
    g2.drawImage(img, r.x, r.y, r.width, r.height, this);

}

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From source file:components.SizeDisplayer.java

private Dimension getTextSize(Graphics2D g2d) {
    if (text == null) {
        textSizeD.setSize(0, 0);/*w w w . j a v  a  2  s .c  o  m*/
    } else {
        FontRenderContext frc;
        if (g2d != null) {
            frc = g2d.getFontRenderContext();
        } else {
            frc = new FontRenderContext(null, false, false);
        }
        Rectangle2D textRect = getFont().getStringBounds(text, frc);
        textSizeR.setRect(textRect);
        textSizeD.setSize(textSizeR.width, textSizeR.height);
    }

    return textSizeD;
}

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From source file:Main.java

public void paint(Graphics g) {
    Graphics2D g2 = (Graphics2D) g;

    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    Font font = new Font("Serif", Font.PLAIN, 72);
    g2.setFont(font);//ww  w.j a  v a  2s.c o  m

    String s = "this is a test";
    float x = 50, y = 150;

    // Draw the baseline.
    FontRenderContext frc = g2.getFontRenderContext();
    float width = (float) font.getStringBounds(s, frc).getWidth();
    Line2D baseline = new Line2D.Float(x, y, x + width, y);
    g2.setPaint(Color.red);
    g2.draw(baseline);

    // Draw the ascent.
    LineMetrics lm = font.getLineMetrics(s, frc);
    Line2D ascent = new Line2D.Float(x, y - lm.getAscent(), x + width, y - lm.getAscent());
    g2.draw(ascent);

    // Draw the descent.
    Line2D descent = new Line2D.Float(x, y + lm.getDescent(), x + width, y + lm.getDescent());
    g2.draw(descent);

    // Draw the leading.
    Line2D leading = new Line2D.Float(x, y + lm.getDescent() + lm.getLeading(), x + width,
            y + lm.getDescent() + lm.getLeading());
    g2.draw(leading);

    // Render the string.
    g2.setPaint(Color.black);
    g2.drawString(s, x, y);
}

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From source file:LineMetricsIllustration.java

public void paint(Graphics g) {
    Graphics2D g2 = (Graphics2D) g;

    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    Font font = new Font("Serif", Font.PLAIN, 72);
    g2.setFont(font);/*www. jav  a  2 s .  c o m*/

    String s = "Java Source and Support";
    float x = 50, y = 150;

    // Draw the baseline.
    FontRenderContext frc = g2.getFontRenderContext();
    float width = (float) font.getStringBounds(s, frc).getWidth();
    Line2D baseline = new Line2D.Float(x, y, x + width, y);
    g2.setPaint(Color.red);
    g2.draw(baseline);

    // Draw the ascent.
    LineMetrics lm = font.getLineMetrics(s, frc);
    Line2D ascent = new Line2D.Float(x, y - lm.getAscent(), x + width, y - lm.getAscent());
    g2.draw(ascent);

    // Draw the descent.
    Line2D descent = new Line2D.Float(x, y + lm.getDescent(), x + width, y + lm.getDescent());
    g2.draw(descent);

    // Draw the leading.
    Line2D leading = new Line2D.Float(x, y + lm.getDescent() + lm.getLeading(), x + width,
            y + lm.getDescent() + lm.getLeading());
    g2.draw(leading);

    // Render the string.
    g2.setPaint(Color.black);
    g2.drawString(s, x, y);
}

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From source file:BasicShapes.java

public void paint(Graphics g) {
    Graphics2D g2d = (Graphics2D) g;

    int x = 10, y = 10, start = 2, end = 4;

    AttributedString astr = new AttributedString("aString");
    astr.addAttribute(TextAttribute.FONT, new Font("", 1, 1), start, end);
    astr.addAttribute(TextAttribute.BACKGROUND, Color.red, start, end);

    // Draw mixed-style text
    TextLayout tl = new TextLayout(astr.getIterator(), g2d.getFontRenderContext());
    tl.draw(g2d, x, y);/*  w  w  w . j av a 2 s  .co  m*/

}

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From source file:CustomStrokes.java

/** Draw the example */
public void paint(Graphics g1) {
    Graphics2D g = (Graphics2D) g1;
    // Get a shape to work with. Here we'll use the letter B
    Font f = new Font("Serif", Font.BOLD, 200);
    GlyphVector gv = f.createGlyphVector(g.getFontRenderContext(), "B");
    Shape shape = gv.getOutline();

    // Set drawing attributes and starting position
    g.setColor(Color.black);/* ww  w.j  a v  a 2s .c o m*/
    g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    g.translate(10, 175);

    // Draw the shape once with each stroke
    for (int i = 0; i < strokes.length; i++) {
        g.setStroke(strokes[i]); // set the stroke
        g.draw(shape); // draw the shape
        g.translate(140, 0); // move to the right
    }
}

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From source file:FontShow.java

public void paint(Graphics g) {
    Graphics2D g2 = (Graphics2D) g;
    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

    Font font = new Font("Dialog", Font.PLAIN, 96);
    g2.setFont(font);//from  w w  w .ja v  a  2 s.com
    int width = getSize().width;
    int height = getSize().height;

    String message = "Java2s";

    FontRenderContext frc = g2.getFontRenderContext();
    LineMetrics metrics = font.getLineMetrics(message, frc);
    float messageWidth = (float) font.getStringBounds(message, frc).getWidth();

    // center text
    float ascent = metrics.getAscent();
    float descent = metrics.getDescent();
    float x = (width - messageWidth) / 2;
    float y = (height + metrics.getHeight()) / 2 - descent;

    int PAD = 25;
    g2.setPaint(getBackground());
    g2.fillRect(0, 0, width, height);

    g2.setPaint(getForeground());
    g2.drawString(message, x, y);

    g2.setPaint(Color.white); // Base lines
    drawLine(g2, x - PAD, y, x + messageWidth + PAD, y);
    drawLine(g2, x, y + PAD, x, y - ascent - PAD);
    g2.setPaint(Color.green); // Ascent line
    drawLine(g2, x - PAD, y - ascent, x + messageWidth + PAD, y - ascent);
    g2.setPaint(Color.red); // Descent line
    drawLine(g2, x - PAD, y + descent, x + messageWidth + PAD, y + descent);
}

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From source file:TextLayoutLineBreakerMeasurer.java

public void paint(Graphics g) {
    Graphics2D graphics2D = (Graphics2D) g;
    GraphicsEnvironment.getLocalGraphicsEnvironment();
    Font font = new Font("LucidaSans", Font.PLAIN, 14);
    AttributedString messageAS = new AttributedString(m);
    messageAS.addAttribute(TextAttribute.FONT, font);
    AttributedCharacterIterator messageIterator = messageAS.getIterator();
    FontRenderContext messageFRC = graphics2D.getFontRenderContext();
    LineBreakMeasurer messageLBM = new LineBreakMeasurer(messageIterator, messageFRC);

    Insets insets = getInsets();/*from   w  ww .  j  a  v  a 2s .c o  m*/
    float wrappingWidth = getSize().width - insets.left - insets.right;
    float x = insets.left;
    float y = 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 = insets.left;
    }
}

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From source file:TextLayoutDemo.java

public void paint(Graphics g) {
    Graphics2D graphics2D = (Graphics2D) g;
    GraphicsEnvironment.getLocalGraphicsEnvironment();
    Font font = new Font("LucidaSans", Font.PLAIN, 14);
    AttributedString messageAS = new AttributedString(textMessage);
    messageAS.addAttribute(TextAttribute.FONT, font);
    AttributedCharacterIterator messageIterator = messageAS.getIterator();
    FontRenderContext messageFRC = graphics2D.getFontRenderContext();
    LineBreakMeasurer messageLBM = new LineBreakMeasurer(messageIterator, messageFRC);

    Insets insets = getInsets();/*from w  w  w .ja  v a2 s  . c  o  m*/
    float wrappingWidth = getSize().width - insets.left - insets.right;
    float x = insets.left;
    float y = 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 = insets.left;
    }
}

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From source file:com.neophob.sematrix.core.generator.Textwriter.java

/**
 * create image.//from  w w w .  j ava2  s . c o  m
 *
 * @param text the text
 */
public void createTextImage(String text) {
    //only load if needed
    if (StringUtils.equals(text, this.text)) {
        return;
    }

    this.text = text;

    BufferedImage img = new BufferedImage(TEXT_BUFFER_X_SIZE, internalBufferYSize, BufferedImage.TYPE_INT_RGB);

    Graphics2D g2 = img.createGraphics();
    FontRenderContext frc = g2.getFontRenderContext();
    TextLayout layout = new TextLayout(text, font, frc);
    Rectangle2D rect = layout.getBounds();

    int h = (int) (0.5f + rect.getHeight());
    //head and tailing space
    maxXPos = (int) (0.5f + rect.getWidth()) + 2 * internalBufferXSize;
    int ypos = internalBufferYSize - (internalBufferYSize - h) / 2;

    img = new BufferedImage(maxXPos, internalBufferYSize, BufferedImage.TYPE_BYTE_GRAY);
    g2 = img.createGraphics();

    g2.setColor(new Color(128));
    g2.setFont(font);
    g2.setClip(0, 0, maxXPos, internalBufferYSize);

    g2.drawString(text, internalBufferXSize, ypos);
    DataBufferByte dbi = (DataBufferByte) img.getRaster().getDataBuffer();
    byte[] textBuffer = dbi.getData();
    g2.dispose();

    xofs = 0;

    textAsImage = new int[maxXPos * internalBufferYSize];
    for (int i = 0; i < textAsImage.length; i++) {
        if (textBuffer[i] > 10) {
            textAsImage[i] = 127;
        } else {
            textAsImage[i] = 0;
        }
    }

    //clear internalbuffer
    Arrays.fill(this.internalBuffer, 0);
}

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