Examples of java.awt.font.LineMetrics

java.awt.font.LineMetrics
The LineMetrics class allows access to the metrics needed to layout characters along a line and to layout of a set of lines. A LineMetrics object encapsulates the measurement information associated with a run of text.
Fonts can have different metrics for different ranges of characters. The getLineMetrics methods of {@link java.awt.Font Font} take some text as an argumentand return a LineMetrics object describing the metrics of the initial number of characters in that text, as returned by {@link #getNumChars}.

    }


    @Override
    public int getBaseline(int width, int height) {
        FontRenderContext fontRenderContext = Platform.getFontRenderContext();
        LineMetrics lm = font.getLineMetrics("", fontRenderContext);
        float ascent = lm.getAscent();
        float textHeight = lm.getHeight();


        int baseline = Math.round((height - textHeight) / 2 + ascent);


        return baseline;
    }

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        graphics.setColor(bevelColorLocal);
        GraphicsUtilities.drawLine(graphics, 0, 0, width, Orientation.HORIZONTAL);


        // Paint the content
        FontRenderContext fontRenderContext = Platform.getFontRenderContext();
        LineMetrics lm = font.getLineMetrics("", fontRenderContext);
        float ascent = lm.getAscent();
        float textHeight = lm.getHeight();


        String prompt = textInput.getPrompt();


        Color caretColor;

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        if ((transform.getType() & TRANSFORM_MASK) == 0) {
            int width = 0;
            for (int i = start; i < end; i++) {
                width += peer.charWidth(chars[i]);
            }
            LineMetrics nlm = peer.getLineMetrics();
            bounds = transform.createTransformedShape(
                    new Rectangle2D.Float(0, -nlm.getAscent(), width, nlm
                            .getHeight())).getBounds2D();
        } else {
            int len = end - start;
            char[] subChars = new char[len];
            System.arraycopy(chars, start, subChars, 0, len);

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            // set the font's default horizontal advance to be the same as
            // the missing glyph
            fontDef.setAttributeNS(null, SVG_HORIZ_ADV_X_ATTRIBUTE,  "" + gm.getAdvance());


            // set the ascent and descent attributes
            LineMetrics lm = commonSizeFont.getLineMetrics("By", frc);
            fontFace.setAttributeNS(null, SVG_ASCENT_ATTRIBUTE, "" + lm.getAscent());
            fontFace.setAttributeNS(null, SVG_DESCENT_ATTRIBUTE, "" + lm.getDescent());


            //
            // Font ID
            //
            fontDef.setAttributeNS(null, ATTR_ID,

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      } else {
        label = labelGenerator.generateLabel(dataset, cat, 0);
      }


      Rectangle2D labelBounds = getLabelFont().getStringBounds(label, frc);
      LineMetrics lm = getLabelFont().getLineMetrics(label, frc);
      double ascent = lm.getAscent();


      Point2D labelLocation = calculateLabelLocation(labelBounds, ascent,
          plotArea, startAngle);


      Composite saveComposite = g2.getComposite();

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        String heading = separator.getHeading();


        if (heading != null
            && heading.length() > 0) {
            FontRenderContext fontRenderContext = Platform.getFontRenderContext();
            LineMetrics lm = font.getLineMetrics(heading, fontRenderContext);
            preferredHeight = Math.max((int)Math.ceil(lm.getAscent() + lm.getDescent()
                + lm.getLeading()), preferredHeight);
        }


        preferredHeight += (padding.top + padding.bottom);


        return preferredHeight;

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        if (heading != null
            && heading.length() > 0) {
            FontRenderContext fontRenderContext = Platform.getFontRenderContext();
            Rectangle2D headingBounds = font.getStringBounds(heading, fontRenderContext);
            LineMetrics lm = font.getLineMetrics(heading, fontRenderContext);
            preferredWidth = (int)Math.ceil(headingBounds.getWidth());
            preferredHeight = Math.max((int)Math.ceil(lm.getAscent() + lm.getDescent()
                + lm.getLeading()), preferredHeight);
        }


        preferredHeight += (padding.top + padding.bottom);
        preferredWidth += (padding.left + padding.right);

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        String heading = separator.getHeading();


        if (heading != null
            && heading.length() > 0) {
            FontRenderContext fontRenderContext = Platform.getFontRenderContext();
            LineMetrics lm = font.getLineMetrics(heading, fontRenderContext);


            graphics.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
                fontRenderContext.getAntiAliasingHint());
            graphics.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
                fontRenderContext.getFractionalMetricsHint());


            graphics.setFont(font);
            graphics.setPaint(headingColor);
            graphics.drawString(heading, padding.left, lm.getAscent() + padding.top);


            Rectangle2D headingBounds = font.getStringBounds(heading, fontRenderContext);


            Area titleClip = new Area(graphics.getClip());
            titleClip.subtract(new Area(new Rectangle2D.Double(padding.left, padding.top,
                headingBounds.getWidth() + padding.right, headingBounds.getHeight())));
            graphics.clip(titleClip);


            separatorY += (lm.getAscent() + lm.getDescent()) / 2 + 1;
        }


        graphics.setStroke(new BasicStroke(thickness));
        graphics.setColor(color);
        graphics.drawLine(0, separatorY, width, separatorY);

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        // calculate paragraph width and adjust for alignment
        layouter.end(paragraph, rows);


        // Recalculate terminator bounds
        FontRenderContext fontRenderContext = Platform.getFontRenderContext();
        LineMetrics lm = getTextPaneSkin().getFont().getLineMetrics("", 0, 0, fontRenderContext);
        int terminatorHeight = (int)Math.ceil(lm.getHeight());


        int terminatorY;
        if (getCharacterCount() == 1) {
            // The terminator is the only character in this paragraph
            terminatorY = 0;

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        // calculate paragraph width and adjust for alignment
        layouter.end(paragraph, rowsLocal);


        // Recalculate terminator bounds
        FontRenderContext fontRenderContext = Platform.getFontRenderContext();
        LineMetrics lm = getTextPaneSkin().getFont().getLineMetrics("", 0, 0, fontRenderContext);
        int terminatorHeight = (int)Math.ceil(lm.getHeight());


        int terminatorY;
        if (getCharacterCount() == 1) {
            // The terminator is the only character in this paragraph
            terminatorY = 0;

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