insets.setLeft(dblPoints);
insets.setRight(dblPoints);
    public void handleEvent(Event event)    {        double dblCurrent = -1;        double dblPoints = -1;        if (event.widget.equals(txtTop))        {            try            {                dblCurrent = Double.parseDouble(txtTop.getText());                dblPoints = serviceprovider.getConvertedValue(dblCurrent, sUnits, "Points"); //$NON-NLS-1$                insets.setTop(dblPoints);            }            catch (NumberFormatException e1 )            {                dblPoints = insets.getTop();                dblCurrent = serviceprovider.getConvertedValue(dblPoints, "Points", sUnits); //$NON-NLS-1$                txtTop.setText(new Double(dblCurrent).toString());            }        }        else if (event.widget.equals(txtLeft))        {            try            {                dblCurrent = Double.parseDouble(txtLeft.getText());                dblPoints = serviceprovider.getConvertedValue(dblCurrent, sUnits, "Points"); //$NON-NLS-1$                insets.setLeft(dblPoints);            }            catch (NumberFormatException e1 )            {                dblPoints = insets.getLeft();                dblCurrent = serviceprovider.getConvertedValue(dblPoints, "Points", sUnits); //$NON-NLS-1$                txtLeft.setText(new Double(dblCurrent).toString());            }        }        else if (event.widget.equals(txtBottom))        {            try            {                dblCurrent = Double.parseDouble(txtBottom.getText());                dblPoints = serviceprovider.getConvertedValue(dblCurrent, sUnits, "Points"); //$NON-NLS-1$                insets.setLeft(dblPoints);            }            catch (NumberFormatException e1 )            {                dblPoints = insets.getBottom();                dblCurrent = serviceprovider.getConvertedValue(dblPoints, "Points", sUnits); //$NON-NLS-1$                txtBottom.setText(new Double(dblCurrent).toString());            }        }        else if (event.widget.equals(txtRight))        {            try            {                dblCurrent = Double.parseDouble(txtRight.getText());                dblPoints = serviceprovider.getConvertedValue(dblCurrent, sUnits, "Points"); //$NON-NLS-1$                insets.setLeft(dblPoints);            }            catch (NumberFormatException e1 )            {                dblPoints = insets.getRight();                dblCurrent = serviceprovider.getConvertedValue(dblPoints, "Points", sUnits); //$NON-NLS-1$                txtRight.setText(new Double(dblCurrent).toString());            }        }    }