Examples of FontMetrics

ae.java.awt.FontMetrics
The FontMetrics class defines a font metrics object, which encapsulates information about the rendering of a particular font on a particular screen.
Note to subclassers: Since many of these methods form closed, mutually recursive loops, you must take care that you implement at least one of the methods in each such loop to prevent infinite recursion when your subclass is used. In particular, the following is the minimal suggested set of methods to override in order to ensure correctness and prevent infinite recursion (though other subsets are equally feasible):
- {@link #getAscent()}
- {@link #getLeading()}
- {@link #getMaxAdvance()}
- {@link #charWidth(char)}
- {@link #charsWidth(char[],int,int)}
Note that the implementations of these methods are inefficient, so they are usually overridden with more efficient toolkit-specific implementations.
When an application asks to place a character at the position (x, y), the character is placed so that its reference point (shown as the dot in the accompanying image) is put at that position. The reference point specifies a horizontal line called the baseline of the character. In normal printing, the baselines of characters should align.
In addition, every character in a font has an ascent, a descent, and an advance width. The ascent is the amount by which the character ascends above the baseline. The descent is the amount by which the character descends below the baseline. The advance width indicates the position at which AWT should place the next character.
An array of characters or a string can also have an ascent, a descent, and an advance width. The ascent of the array is the maximum ascent of any character in the array. The descent is the maximum descent of any character in the array. The advance width is the sum of the advance widths of each of the characters in the character array. The advance of a String is the distance along the baseline of the String. This distance is the width that should be used for centering or right-aligning the String.
Note that the advance of a String is not necessarily the sum of the advances of its characters measured in isolation because the width of a character can vary depending on its context. For example, in Arabic text, the shape of a character can change in order to connect to other characters. Also, in some scripts, certain character sequences can be represented by a single shape, called a ligature. Measuring characters individually does not account for these transformations.
Font metrics are baseline-relative, meaning that they are generally independent of the rotation applied to the font (modulo possible grid hinting effects). See {@link ae.java.awt.Font Font}. @author Jim Graham @see ae.java.awt.Font @since JDK1.0
com.google.code.appengine.awt.FontMetrics
com.jgraph.gaeawt.java.awt.FontMetrics
java.awt.FontMetrics
org.apache.fontbox.afm.FontMetrics
org.apache.fop.fonts.FontMetrics
Main interface for access to font metrics.
org.eclipse.swt.graphics.FontMetrics
se.org/swt/">Sample code and further information
org.gwt.mosaic.core.client.FontMetrics
The {@code FontMetrics} class defines a font metrics object, whichencapsulates information about the rendering of a particular font. @author georgopoulos.georgios(at)gmail.com
org.jfree.fonts.registry.FontMetrics
Font-metrics are computed for a certain font-size and style. There are no general metrics, which are assumed to be globally available.
The use of these font metrics is application dependent. As building these metrics usually is memory and CPU intensive, this must be done in an application specific context. You certainly want to cache the font data. @author Thomas Morgner
org.pentaho.reporting.libraries.fonts.registry.FontMetrics
Font-metrics are computed for a certain font-size and style. There are no general metrics, which are assumed to be globally available.
The use of these font metrics is application dependent. As building these metrics usually is memory and CPU intensive, this must be done in an application specific context. You certainly want to cache the font data. @author Thomas Morgner

Examples of java.awt.FontMetrics

        model_ = new BinaryModel();
        updateUI();
    }


    public Dimension getPreferredSize() {
        FontMetrics fm = getFontMetrics(getFont());
        return new Dimension(
            fm.charWidth('0')*68,
            fm.getHeight()*(model_.getLength()+15)/16
        );
    }

View Full Code Here

Examples of java.awt.FontMetrics

        return model_;
    }


    public void paintComponent(Graphics g) {
        Rectangle clipRect = g.getClipBounds();
        FontMetrics fm = getFontMetrics(getFont());


        g.setColor(getBackground());
        g.fillRect(clipRect.x, clipRect.y, clipRect.width, clipRect.height);
        g.setColor(getForeground());


        int startLine = clipRect.y / fm.getHeight();
        int endLine = Math.min(
            (clipRect.y + clipRect.height) / fm.getHeight() + 1,
            (model_.getLength()+15) / 16
        );
        byte[] bytes = new byte[16];
        char[] chars = new char[69];


        // for each visible line
        for ( ; startLine < endLine; startLine++) {
            Arrays.fill(chars, ' ');


            int offset = 1;


            // write the line address
            int address = startLine*16;
            for (int i=0; i < 8; i++) {
                chars[offset++] = HEX[address >>> 28];
                address <<= 4;
            }
            offset += 2;
            chars[9] = '>';


            int len = model_.getBytes(startLine*16,16,bytes);
            for(int i=0; i<len; i++) {
                // write the data as hexadecimal digits
                chars[offset++] = HEX[ (bytes[i] >>> 4) & 0x0f];
                chars[offset++] = HEX[bytes[i] & 0x0f];


                // write the data as characters
                char ch = (char) (bytes[i] & 0xff);
                chars[i + 48 + i / 4] = Character.isISOControl(ch) ? '.' : ch;


                if (i % 4 == 3) {
                    offset++;
                }


            }


            g.drawString(
                new String(chars),
                0,
                startLine*fm.getHeight()+fm.getAscent()
            );
        }
    }

View Full Code Here

Examples of java.awt.FontMetrics

      
      Circuit circ = circuits.get(pageIndex);
      CircuitState circState = proj.getCircuitState(circ);
      Graphics g = base.create();
      Graphics2D g2 = g instanceof Graphics2D ? (Graphics2D) g : null;
      FontMetrics fm = g.getFontMetrics();
      String head = (header != null && !header.equals(""))
        ? format(header, pageIndex + 1, circuits.size(),
            circ.getName())
        : null;
      int headHeight = (head == null ? 0 : fm.getHeight());


      // Compute image size
      double imWidth = format.getImageableWidth();
      double imHeight = format.getImageableHeight();
      
      // Correct coordinate system for page, including
      // translation and possible rotation.
      Bounds bds = circ.getBounds(g).expand(4);
      double scale = Math.min(imWidth / bds.getWidth(),
          (imHeight - headHeight) / bds.getHeight());
      if (g2 != null) {
        g2.translate(format.getImageableX(), format.getImageableY());
        if (rotateToFit && scale < 1.0 / 1.1) {
          double scale2 = Math.min(imHeight / bds.getWidth(),
              (imWidth - headHeight) / bds.getHeight());
          if (scale2 >= scale * 1.1) { // will rotate
            scale = scale2;
            if (imHeight > imWidth) { // portrait -> landscape
              g2.translate(0, imHeight);
              g2.rotate(-Math.PI / 2);
            } else { // landscape -> portrait
              g2.translate(imWidth, 0);
              g2.rotate(Math.PI / 2);
            }
            double t = imHeight;
            imHeight = imWidth;
            imWidth = t;
          }
        }
      }
      
      // Draw the header line if appropriate
      if (head != null) {
        g.drawString(head,
            (int) Math.round((imWidth - fm.stringWidth(head)) / 2),
            fm.getAscent());
        if (g2 != null) {
          imHeight -= headHeight;
          g2.translate(0, headHeight);
        }
      }

View Full Code Here

Examples of java.awt.FontMetrics

      int index = -1;
      for (CreditsLine line : lines) {
        index++;
        if (index == initialLines) initialHeight = y;
        if (line.type == 0) y += 10;
        FontMetrics fm = fms[line.type];
        line.y = y + fm.getAscent();
        y += fm.getHeight();
      }
      linesHeight = y;
    }
    
    Paint[] paint = paintSteady;

View Full Code Here

Examples of java.awt.FontMetrics

      if (AppPreferences.SHOW_TICK_RATE.getBoolean()) {
        String hz = tickCounter.getTickRate();
        if (hz != null && !hz.equals("")) {
          g.setColor(TICK_RATE_COLOR);
          g.setFont(TICK_RATE_FONT);
          FontMetrics fm = g.getFontMetrics();
          int x = getWidth() - fm.stringWidth(hz) - 5;
          int y = fm.getAscent() + 5;
          g.drawString(hz, x, y);
        }
      }


      GraphicsUtil.switchToWidth(g, 1);

View Full Code Here

Examples of java.awt.FontMetrics

    }
    
    private void paintString(Graphics g, String msg) {
      Font old = g.getFont();
      g.setFont(old.deriveFont(Font.BOLD).deriveFont(18.0f));
      FontMetrics fm = g.getFontMetrics();
      int x = (getWidth() - fm.stringWidth(msg)) / 2;
      if (x < 0) x = 0;
      g.drawString(msg, x, getHeight() - 23);
      g.setFont(old);
      return;
    }

View Full Code Here

Examples of java.awt.FontMetrics

    private static int toDim(int offs) {
      return offs * 3 / 2;
    }
      
    private void drawText(Graphics g, int x, int y) {
      FontMetrics fm;
      String str;
      
      g.setColor(headerColor);
      g.setFont(headerFont);
      g.drawString("Logisim", x, y + 45);
      g.setFont(copyrightFont); fm = g.getFontMetrics();
      str = "\u00a9 " + Main.COPYRIGHT_YEAR;
      g.drawString(str, x + IMAGE_WIDTH - fm.stringWidth(str), y + 16);
      g.setFont(versionFont); fm = g.getFontMetrics();
      str = "Version " + Main.VERSION_NAME;
      g.drawString(str, x + IMAGE_WIDTH - fm.stringWidth(str), y + 75);
    }

View Full Code Here

Examples of java.awt.FontMetrics

    int w;
    int border = EditableLabelField.FIELD_BORDER;
    if (dimsKnown) {
      w = width + 1 + 2 * border;
    } else {
      FontMetrics fm = field.getFontMetrics(font);
      ascent = fm.getAscent();
      descent = fm.getDescent();
      w = 0;
    }
    
    int x0 = x;
    int y0 = getBaseY() - ascent;

View Full Code Here

Examples of java.awt.FontMetrics

  }


  public Bounds getBounds(Graphics g) {
    int x = this.x;
    int y = this.y;
    FontMetrics fm;
    if (font == null)   fm = g.getFontMetrics();
    else                fm = g.getFontMetrics(font);
    int width = fm.stringWidth(text);
    int ascent = fm.getAscent();
    int descent = fm.getDescent();
    switch (halign) {
    case TextField.H_CENTER:    x -= width / 2; break;
    case TextField.H_RIGHT:  x -= width; break;
    default:                    break;
    }

View Full Code Here

Examples of java.awt.FontMetrics

    Font old = g.getFont();
    if (font != null) g.setFont(font);


    int x = this.x;
    int y = this.y;
    FontMetrics fm = g.getFontMetrics();
    int width = fm.stringWidth(text);
    int ascent = fm.getAscent();
    int descent = fm.getDescent();
    switch (halign) {
    case TextField.H_CENTER:    x -= width / 2; break;
    case TextField.H_RIGHT:  x -= width; break;
    default:                    break;
    }

View Full Code Here

0 1 2 3 4 5

TOP

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.