Examples of ptolemy.kernel.util.StringAttribute

ptolemy.kernel.util.StringAttribute
An attribute that has a string value. Use setExpression() to define the value, as in for example
```
 attribute.setExpression("xxx"); 
```
The default value of the string contained by this attribute is the empty string.
By default, an instance of this class is fully visible in a user interface. The visibility is indicated to the user interface when the user interface calls the getVisibility() method of this class and the value Settable.FULL is returned to the userInterface.
Note that the string value within StringAttribute cannot reference other StringAttributes or Parameters, so if an actor has a public StringAttribute, then one cannot make the value of that attribute dependent on a value higher in the hierarchy. Usually, actors have public ptolemy.data.expr.Parameters instead of public StringAttributes so that the value can reference other parameters. The primary reason to use StringAttribute is if you want a string that will not be parsed and you do not want to type a leading a trailing double quote. @see Settable#FULL @author Edward A. Lee @version $Id: StringAttribute.java,v 1.57 2006/09/16 11:20:46 eal Exp $ @since Ptolemy II 1.0 @Pt.ProposedRating Green (eal) @Pt.AcceptedRating Green (cxh)


        _handle = new TypedIOPort(this, "handle", false, true);
        _handle.setTypeEquals(BaseType.LONG);


        // Put the rollback input on the bottom of the actor.
        StringAttribute rollbackCardinal = new StringAttribute(_rollback,
                "_cardinal");
        rollbackCardinal.setExpression("SOUTH");
    }

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        majorTickSpacing.setTypeEquals(BaseType.INT);
        minorTickSpacing = new Parameter(this, "minorTickSpacing",
                new IntToken(1));
        minorTickSpacing.setTypeEquals(BaseType.INT);


        title = new StringAttribute(this, "title");
        title.setExpression("");
    }

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        xScaleFactor = new Parameter(this, "xScaleFactor", new DoubleToken(
                "1.0F"));
        yScaleFactor = new Parameter(this, "yScaleFactor", new DoubleToken(
                "1.0F"));


        interpolationType = new StringAttribute(this, "interpolationType");
        interpolationType.setExpression("bilinear");
        _interpolationType = _BILINEAR;


        subSampleBits = new Parameter(this, "subSampleBits", new IntToken(8));

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     */
    public JAIDFT(CompositeEntity container, String name)
            throws IllegalActionException, NameDuplicationException {
        super(container, name);


        scalingType = new StringAttribute(this, "scalingType");
        scalingType.setExpression("none");
        _scalingType = _NONE;


        dataNature = new StringAttribute(this, "dataNature");
        dataNature.setExpression("realToComplex");
        _dataNature = _REAL_TO_COMPLEX;


        input.setTypeEquals(BaseType.OBJECT);
        output.setTypeEquals(BaseType.OBJECT);

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        leftPadding = new Parameter(this, "leftPadding", new IntToken(0));
        rightPadding = new Parameter(this, "rightPadding", new IntToken(0));
        topPadding = new Parameter(this, "topPadding", new IntToken(0));
        bottomPadding = new Parameter(this, "bottomPadding", new IntToken(0));


        borderType = new StringAttribute(this, "borderType");
        borderType.setExpression("Zero");
        _borderType = _BORDER_ZERO;


        constants = new Parameter(this, "constants", new ArrayToken(
                BaseType.DOUBLE, _initialArray));

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     *   actor with this name.
     */
    public DoubleMatrixToJAI(CompositeEntity container, String name)
            throws IllegalActionException, NameDuplicationException {
        super(container, name);
        dataFormat = new StringAttribute(this, "dataFormat");
        dataFormat.setExpression("byte");
        _dataFormat = _BYTE;


        scale = new Parameter(this, "scale");
        scale.setTypeEquals(BaseType.BOOLEAN);

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            throws IllegalActionException, NameDuplicationException {
        super(container, name);
        input.setTypeEquals(BaseType.OBJECT);
        output.setTypeEquals(BaseType.OBJECT);


        firstMask = new StringAttribute(this, "firstMask");
        firstMask.setExpression("Sobel Horizontal");
        _firstMask = _SOBEL_HORIZONTAL;


        secondMask = new StringAttribute(this, "secondMask");
        secondMask.setExpression("Sobel Vertical");
        _secondMask = _SOBEL_VERTICAL;


        userSpecifiedFirstMask = new Parameter(this, "userSpecifiedFirstMask",
                new DoubleMatrixToken(_initialMatrix));

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        super(container, name);


        xShift = new Parameter(this, "xShift", new DoubleToken("0.0F"));
        yShift = new Parameter(this, "yShift", new DoubleToken("0.0F"));


        interpolationType = new StringAttribute(this, "interpolationType");
        interpolationType.setExpression("bilinear");
        _interpolationType = _BILINEAR;


        subSampleBits = new Parameter(this, "subSampleBits", new IntToken(8));

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     */
    public JAITranspose(CompositeEntity container, String name)
            throws IllegalActionException, NameDuplicationException {
        super(container, name);


        transposeType = new StringAttribute(this, "transposeType");
        transposeType.setExpression("flip horizontal");
        _transposeType = TransposeDescriptor.FLIP_HORIZONTAL;


        input.setTypeEquals(BaseType.OBJECT);
        output.setTypeEquals(BaseType.OBJECT);

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     */
    public JAIDataConvert(CompositeEntity container, String name)
            throws NameDuplicationException, IllegalActionException {
        super(container, name);


        dataFormat = new StringAttribute(this, "dataFormat");
        dataFormat.setExpression("byte");
        _dataFormat = _BYTE;


        input.setTypeEquals(BaseType.OBJECT);
        output.setTypeEquals(BaseType.OBJECT);

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