Examples of org.eclipse.swt.graphics.GC.textExtent()

org.eclipse.swt.graphics.GC.textExtent()
Returns the extent of the given string. Tab expansion and carriage return processing are performed.
The extent of a string is the width and height of the rectangular area it would cover if drawn in a particular font (in this case, the current font in the receiver).
@param string the string to measure @return a point containing the extent of the string @exception IllegalArgumentException
- ERROR_NULL_ARGUMENT - if the string is null
@exception SWTException
- ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed

  }


  private void setWidthForSampleText(Text control, String sampleText) {
    GC gc = new GC(control);
    try {
      Point sampleSize = gc.textExtent(sampleText);
      Point currentSize = control.getSize();
      sampleSize.y = currentSize.y;
      control.setSize(sampleSize);
      return;
    } finally {

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  }


  private void setWidthForSampleText(Text control, String sampleText) {
    GC gc = new GC(control);
    try {
      Point sampleSize = gc.textExtent(sampleText);
      Point currentSize = control.getSize();
      sampleSize.y = currentSize.y;
      control.setSize(sampleSize);
      return;
    } finally {

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  }


  private void setWidthForSampleText(Text control, String sampleText) {
    GC gc = new GC(control);
    try {
      Point sampleSize = gc.textExtent(sampleText);
      Point currentSize = control.getSize();
      sampleSize.y = currentSize.y;
      control.setSize(sampleSize);
      return;
    } finally {

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    if (textValue == null) {
      return null;
    }
    GC gc = new GC(control);
    int maxWidth = control.getBounds().width - 5;
    if (gc.textExtent(textValue).x < maxWidth) {
      gc.dispose();
      return textValue;
    }
    int length = textValue.length();
    int ellipsisWidth = gc.textExtent(ellipsis).x;

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    if (gc.textExtent(textValue).x < maxWidth) {
      gc.dispose();
      return textValue;
    }
    int length = textValue.length();
    int ellipsisWidth = gc.textExtent(ellipsis).x;
    // Find the second space seperator and start from there
    int secondWord = findSecondWhitespace(textValue, gc, maxWidth);
    int pivot = ((length - secondWord) / 2) + secondWord;
    int start = pivot;
    int end = pivot + 1;

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    int start = pivot;
    int end = pivot + 1;
    while (start >= secondWord && end < length) {
      String s1 = textValue.substring(0, start);
      String s2 = textValue.substring(end, length);
      int l1 = gc.textExtent(s1).x;
      int l2 = gc.textExtent(s2).x;
      if (l1 + ellipsisWidth + l2 < maxWidth) {
        gc.dispose();
        return s1 + ellipsis + s2;
      }

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    int end = pivot + 1;
    while (start >= secondWord && end < length) {
      String s1 = textValue.substring(0, start);
      String s2 = textValue.substring(end, length);
      int l1 = gc.textExtent(s1).x;
      int l2 = gc.textExtent(s2).x;
      if (l1 + ellipsisWidth + l2 < maxWidth) {
        gc.dispose();
        return s1 + ellipsis + s2;
      }
      start--;

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        // draw image
        DrawUtils.drawScaledImage(gc, image, clientArea);
        // draw size message
        {
          String message = image.getBounds().width + "x" + image.getBounds().height;
          Point extent = gc.textExtent(message);
          int x = (clientArea.width - extent.x) / 2;
          int y = clientArea.height - extent.y - 5;
          gc.drawText(message, x, y);
        }
      }

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        // same height as the awt one
        if (ensureSameSize) {
            GC tmpGC = new GC(device);
            Font tmpFont = new Font(device, fontData);
            tmpGC.setFont(tmpFont);
            if (tmpGC.textExtent(Az).x
                    > DUMMY_PANEL.getFontMetrics(font).stringWidth(Az)) {
                while (tmpGC.textExtent(Az).x
                        > DUMMY_PANEL.getFontMetrics(font).stringWidth(Az)) {
                    tmpFont.dispose();
                    height--;

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            GC tmpGC = new GC(device);
            Font tmpFont = new Font(device, fontData);
            tmpGC.setFont(tmpFont);
            if (tmpGC.textExtent(Az).x
                    > DUMMY_PANEL.getFontMetrics(font).stringWidth(Az)) {
                while (tmpGC.textExtent(Az).x
                        > DUMMY_PANEL.getFontMetrics(font).stringWidth(Az)) {
                    tmpFont.dispose();
                    height--;
                    fontData.setHeight(height);
                    tmpFont = new Font(device, fontData);

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