Examples of java.awt.font.FontRenderContext

java.awt.font.FontRenderContext
The FontRenderContext class is a container for the information needed to correctly measure text. The measurement of text can vary because of rules that map outlines to pixels, and rendering hints provided by an application.
One such piece of information is a transform that scales typographical points to pixels. (A point is defined to be exactly 1/72 of an inch, which is slightly different than the traditional mechanical measurement of a point.) A character that is rendered at 12pt on a 600dpi device might have a different size than the same character rendered at 12pt on a 72dpi device because of such factors as rounding to pixel boundaries and hints that the font designer may have specified.
Anti-aliasing and Fractional-metrics specified by an application can also affect the size of a character because of rounding to pixel boundaries.
Typically, instances of FontRenderContext are obtained from a {@link java.awt.Graphics2D Graphics2D} object. AFontRenderContext which is directly constructed will most likely not represent any actual graphics device, and may lead to unexpected or incorrect results.
@see java.awt.RenderingHints#KEY_TEXT_ANTIALIASING @see java.awt.RenderingHints#KEY_FRACTIONALMETRICS @see java.awt.Graphics2D#getFontRenderContext() @see java.awt.font.LineMetrics

        if(hints.get(RenderingHints.KEY_FRACTIONALMETRICS)
           == RenderingHints.VALUE_FRACTIONALMETRICS_OFF) {
            useFractionalMetrics = false;
        }


        FontRenderContext frc = new FontRenderContext(defaultTransform,
                                                      isAntialiased,
                                                      useFractionalMetrics);
        return frc;
    }

View Full Code Here

    }


    /** {@inheritDoc} */
    public void drawString(Graphics2D g2d, String text, float x, float y) throws IOException {
        java.awt.Font awtFont = g2d.getFont();
        FontRenderContext frc = g2d.getFontRenderContext();
        GlyphVector gv = awtFont.createGlyphVector(frc, text);
        Shape glyphOutline = gv.getOutline(x, y);
        g2d.fill(glyphOutline);
    }

View Full Code Here

    /**
     * Adjust the size of the TextBox so it encompasses the text inside it.
     */
    public void resizeToFitText(){
        try{
        FontRenderContext frc = new FontRenderContext(null, true, true);
        RichTextRun rt = _txtrun.getRichTextRuns()[0];
        int size = rt.getFontSize();
        int style = 0;
        if (rt.isBold()) style |= Font.BOLD;
        if (rt.isItalic()) style |= Font.ITALIC;

View Full Code Here

    public void shear(double d, double d1) {
        throw new RuntimeException("Not implemented");
    }


    public FontRenderContext getFontRenderContext() {
        return new FontRenderContext(transform, true, true);
    }

View Full Code Here

  }


  private TextLayout getTextLayout(AttributedCharacterIterator text, int committed_count) {
    AttributedString composed = new AttributedString(text, committed_count, text.getEndIndex());
    Font font = textArea.getPainter().getFont();
    FontRenderContext context = ((Graphics2D) (textArea.getPainter().getGraphics())).getFontRenderContext();
    composed.addAttribute(TextAttribute.FONT, font);
    TextLayout layout = new TextLayout(composed.getIterator(), context);
    return layout;
  }

View Full Code Here

        transform.transform(srcPts, srcOff, dstPts, dstOff, num);
    }


    public FontRenderContext getFontRenderContext() {
        //TODO review this
        return new FontRenderContext(new AffineTransform(), false, false);
    }

View Full Code Here


    public FontRenderContext getFontRenderContext() {
        //todo implement it
        //org.jnode.vm.Unsafe.debug("SurfaceGraphics2D.getFontRendererContext() not implemented\n");
        //return null;
        return new FontRenderContext(getTransform(), true, false);
    }

View Full Code Here

    private static float[] deriveTextBoundsAnchorOffsets(final Graphics2D g2,
            final String text, final TextAnchor anchor, 
            final Rectangle2D textBounds) {


        final float[] result = new float[3];
        final FontRenderContext frc = g2.getFontRenderContext();
        final Font f = g2.getFont();
        final FontMetrics fm = g2.getFontMetrics(f);
        final Rectangle2D bounds = TextUtilities.getTextBounds(text, g2, fm);
        final LineMetrics metrics = f.getLineMetrics(text, frc);
        final float ascent = metrics.getAscent();

View Full Code Here

     */
    private static float[] deriveTextBoundsAnchorOffsets(final Graphics2D g2,
            final String text, final TextAnchor anchor) {


        final float[] result = new float[2];
        final FontRenderContext frc = g2.getFontRenderContext();
        final Font f = g2.getFont();
        final FontMetrics fm = g2.getFontMetrics(f);
        final Rectangle2D bounds = TextUtilities.getTextBounds(text, g2, fm);
        final LineMetrics metrics = f.getLineMetrics(text, frc);
        final float ascent = metrics.getAscent();

View Full Code Here

     */
    private static float[] deriveRotationAnchorOffsets(final Graphics2D g2,
            final String text, final TextAnchor anchor) {


        final float[] result = new float[2];
        final FontRenderContext frc = g2.getFontRenderContext();
        final LineMetrics metrics = g2.getFont().getLineMetrics(text, frc);
        final FontMetrics fm = g2.getFontMetrics();
        final Rectangle2D bounds = TextUtilities.getTextBounds(text, g2, fm);
        final float ascent = metrics.getAscent();
        final float halfAscent = ascent / 2.0f;

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of java.awt.font.FontRenderContext

be.xtnd.commons.gui.WaitFrame

ch.sahits.game.graphic.image.impl.OpenPatricianPainter

ch.sahits.game.graphic.image.OpenPatricianPainter

com.aicontest.visualizer.js.dom.CanvasRenderingContext2d

com.alee.examples.groups.desktoppane.tetris.Tetris

com.alee.graphics.strokes.TextStroke

com.alee.utils.LafUtils

com.dotmarketing.servlets.image.TitleImage

com.dtrules.compiler.excel.util.Rules2Excel

com.itextpdf.text.pdf.PdfGraphics2D

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.