elementfactory.java

Java的Web报表库

   *
   * @throws SAXException if there is a SAX problem.
   */
  protected void startImageRef(final Attributes atts) throws SAXException
  {
    final String elementName = getNameGenerator().generateName(atts.getValue("name"));
    final String elementSource = atts.getValue("src");
    // Log.debug("Loading: " + getContentBase() + " " + elementSource + " as image");
    try
    {
      final boolean elementScale = ParserUtil.parseBoolean(atts.getValue("scale"), true);
      final boolean elementARatio = ParserUtil.parseBoolean(atts.getValue("keepAspectRatio"), true);
      final ImageElement element = ItemFactory.createImageElement(
          elementName,
          ParserUtil.getElementPosition(atts),
          Color.white,
          new URL(getContentBase(), elementSource),
          elementScale,
          elementARatio);
      final boolean elementDynamic = ParserUtil.parseBoolean(atts.getValue("dynamic"), false);
      element.getStyle().setBooleanStyleProperty
          (ElementStyleSheet.DYNAMIC_HEIGHT, elementDynamic);

      getCurrentBand().addElement(element);
    }
    catch (IOException mfule)
    {
      throw new ParseException("Unable to create/load image", mfule, getLocator());
    }

  }

  /**
   * Create a ImageElement with an static ImageDataSource. The ImageData is read from
   * the supplied URL (attribute "src") in conjunction with the contentbase defined in the
   * ReportDefintionContentHandler
   *
   * @param atts  the attributes.
   *
   * @throws SAXException if there is a SAX problem.
   */
  protected void startImageField(final Attributes atts) throws SAXException
  {
    final String elementName = getNameGenerator().generateName(atts.getValue(NAME_ATT));
    final String elementSource = atts.getValue(FIELDNAME_ATT);

    final boolean elementScale = ParserUtil.parseBoolean(atts.getValue("scale"), true);
    final boolean elementARatio = ParserUtil.parseBoolean(atts.getValue("keepAspectRatio"), true);
    final ImageElement element = ItemFactory.createImageDataRowElement(
        elementName,
        ParserUtil.getElementPosition(atts),
        Color.white,
        elementSource,
        elementScale,
        elementARatio);

    final boolean elementDynamic = ParserUtil.parseBoolean(atts.getValue("dynamic"), false);
    element.getStyle().setBooleanStyleProperty
        (ElementStyleSheet.DYNAMIC_HEIGHT, elementDynamic);

    getCurrentBand().addElement(element);

  }

  /**
   * Starts a drawable field.
   *
   * @param atts  the attributes.
   *
   * @throws SAXException if there is a SAX error.
   */
  protected void startDrawableField(final Attributes atts) throws SAXException
  {
    final String elementName = getNameGenerator().generateName(atts.getValue(NAME_ATT));
    final String elementSource = atts.getValue(FIELDNAME_ATT);

    final DrawableElement element = new DrawableElement();
    element.setName(elementName);
    ItemFactory.setElementBounds(element, ParserUtil.getElementPosition(atts));

    final DataRowDataSource drds = new DataRowDataSource(elementSource);
    final DrawableFilter filter = new DrawableFilter();
    filter.setDataSource(drds);
    element.setDataSource(filter);
    getCurrentBand().addElement(element);

  }

  /**
   * Create a ImageElement with an static ImageDataSource. The ImageData is read from
   * the supplied URL (attribute "src") in conjunction with the contentbase defined in the
   * ReportDefintionContentHandler
   *
   * @param atts  the attributes.
   *
   * @throws SAXException if there is a SAX problem.
   */
  protected void startImageURLField(final Attributes atts) throws SAXException
  {
    final String elementName = getNameGenerator().generateName(atts.getValue(NAME_ATT));
    final String elementSource = atts.getValue(FIELDNAME_ATT);

    final boolean elementScale = ParserUtil.parseBoolean(atts.getValue("scale"), true);
    final boolean elementARatio = ParserUtil.parseBoolean(atts.getValue("keepAspectRatio"), true);
    final ImageElement element = ItemFactory.createImageURLElement(
        elementName,
        ParserUtil.getElementPosition(atts),
        Color.white,
        elementSource,
        elementScale,
        elementARatio);
    final boolean elementDynamic = ParserUtil.parseBoolean(atts.getValue("dynamic"), false);
    element.getStyle().setBooleanStyleProperty
        (ElementStyleSheet.DYNAMIC_HEIGHT, elementDynamic);

    getCurrentBand().addElement(element);
  }

  /**
   * Create a ImageElement with an static ImageDataSource. The ImageData is read from
   * the supplied URL (attribute "src") in conjunction with the contentbase defined in the
   * ReportDefintionContentHandler
   *
   * @param atts  the attributes.
   *
   * @throws SAXException if there is a SAX problem.
   */
  protected void startImageFunction(final Attributes atts) throws SAXException
  {
    final String elementName = getNameGenerator().generateName(atts.getValue(NAME_ATT));
    final String elementSource = atts.getValue(FUNCTIONNAME_ATT);

    final boolean elementScale = ParserUtil.parseBoolean(atts.getValue("scale"), true);
    final boolean elementARatio = ParserUtil.parseBoolean(atts.getValue("keepAspectRatio"), true);
    final ImageElement element = ItemFactory.createImageDataRowElement(
        elementName,
        ParserUtil.getElementPosition(atts),
        Color.white,
        elementSource,
        elementScale,
        elementARatio);
    final boolean elementDynamic = ParserUtil.parseBoolean(atts.getValue("dynamic"), false);
    element.getStyle().setBooleanStyleProperty
        (ElementStyleSheet.DYNAMIC_HEIGHT, elementDynamic);

    getCurrentBand().addElement(element);
  }


  /**
   * Create a ImageElement with an static ImageDataSource. The ImageData is read from
   * the supplied URL (attribute "src") in conjunction with the contentbase defined in the
   * ReportDefintionContentHandler
   *
   * @param atts  the attributes.
   *
   * @throws SAXException if there is a SAX problem.
   */
  protected void startImageURLFunction(final Attributes atts) throws SAXException
  {
    final String elementName = getNameGenerator().generateName(atts.getValue(NAME_ATT));
    final String elementSource = atts.getValue(FUNCTIONNAME_ATT);

    final boolean elementScale = ParserUtil.parseBoolean(atts.getValue("scale"), true);
    final boolean elementARatio = ParserUtil.parseBoolean(atts.getValue("keepAspectRatio"), true);
    final ImageElement element = ItemFactory.createImageURLElement(
        elementName,
        ParserUtil.getElementPosition(atts),
        Color.white,
        elementSource,
        elementScale,
        elementARatio);
    final boolean elementDynamic = ParserUtil.parseBoolean(atts.getValue("dynamic"), false);
    element.getStyle().setBooleanStyleProperty
        (ElementStyleSheet.DYNAMIC_HEIGHT, elementDynamic);

    getCurrentBand().addElement(element);
  }

  /**
   * Creates a LineShapeElement.
   *
   * @param atts  the attributes.
   *
   * @throws SAXException if there is a SAX problem.
   */
  protected void startLine(final Attributes atts) throws SAXException
  {
    final String name = getNameGenerator().generateName(atts.getValue(NAME_ATT));
    final Color c = ParserUtil.parseColor(atts.getValue(COLOR_ATT));
    final float x1 = ParserUtil.parseFloat(atts.getValue("x1"), "Element x1 not specified");
    final float y1 = ParserUtil.parseFloat(atts.getValue("y1"), "Element y1 not specified");
    final float x2 = ParserUtil.parseFloat(atts.getValue("x2"), "Element x2 not specified");
    final float y2 = ParserUtil.parseFloat(atts.getValue("y2"), "Element y2 not specified");

    final Line2D line = new Line2D.Float(x1, y1, x2, y2);
    final ShapeElement element = ItemFactory.createLineShapeElement(
        name,
        c,
        ParserUtil.parseStroke(atts.getValue("weight")),
        line);
    getCurrentBand().addElement(element);
  }

  /**
   * Creates a RectangleShapeElement.
   *
   * @param atts  the attributes.
   *
   * @throws SAXException if there is a SAX problem.
   */
  protected void startRectangle(final Attributes atts) throws SAXException
  {
    final String name = getNameGenerator().generateName(atts.getValue(NAME_ATT));
    final Color c = ParserUtil.parseColor(atts.getValue(COLOR_ATT));
    final Rectangle2D bounds = ParserUtil.getElementPosition(atts);
    final boolean shouldDraw = ParserUtil.parseBoolean(atts.getValue("draw"), false);
    final boolean shouldFill = ParserUtil.parseBoolean(atts.getValue("fill"), true);

    final ShapeElement element = ItemFactory.createRectangleShapeElement(
        name,
        c,
        ParserUtil.parseStroke(atts.getValue("weight")),
        bounds, shouldDraw, shouldFill);
    getCurrentBand().addElement(element);
  }

  /**
   * Creates a RectangleShapeElement.
   *
   * @param atts  the attributes.
   *
   * @throws SAXException if there is a SAX problem.
   */
  protected void startShapeField(final Attributes atts) throws SAXException
  {
    final String name = getNameGenerator().generateName(atts.getValue(NAME_ATT));
    final String elementSource = atts.getValue(FIELDNAME_ATT);
    final Color c = ParserUtil.parseColor(atts.getValue(COLOR_ATT));
    final Rectangle2D bounds = ParserUtil.getElementPosition(atts);
    final boolean shouldDraw = ParserUtil.parseBoolean(atts.getValue("draw"), false);
    final boolean shouldFill = ParserUtil.parseBoolean(atts.getValue("fill"), true);
    final boolean scale = ParserUtil.parseBoolean(atts.getValue("keepAspectRatio"), false);
    final boolean kar = ParserUtil.parseBoolean(atts.getValue("scale"), true);

    final ShapeElement element = ItemFactory.createShapeElement(
        name,
        bounds,
        c,
        ParserUtil.parseStroke(atts.getValue("weight")),
        elementSource, shouldDraw, shouldFill, scale, kar);
    getCurrentBand().addElement(element);
  }

  /**
   * Creates a label element, an text element with an static datasource attached.
   *
   * @param atts  the attributes.
   *
   * @throws SAXException if there is a SAX problem.
   */
  protected void startLabel(final Attributes atts) throws SAXException
  {
    getTextElementAttributes(atts);
    clearCurrentText();
  }

  /**
   * Creates a text element. In ancient times there was a difference between string elements
   * (single line) and multiline fields. This is resolved in the text element class which
   * handles all cases of printing text in reports.
   *
   * @param atts  the attributes.
   *
   * @throws SAXException if there is a SAX problem.
   */
  protected void startMultilineField(final Attributes atts) throws SAXException
  {
    getDataElementAttributes(atts);
  }

  /**
   * Creates a text element. In ancient times there was a difference between string elements
   * (single line) and multiline fields. This is resolved in the text element class which
   * handles all cases of printing text in reports.
   *
   * @param atts  the attributes.
   *
   * @throws SAXException if there is a SAX problem.
   */
  protected void startStringField(final Attributes atts) throws SAXException
  {
    getDataElementAttributes(atts);
  }

  /**
   * Creates a number element (a text element that displays a numerical value).
   *
   * @param atts  the attributes.
   *
   * @throws SAXException if there is a SAX problem.
   */
  protected void startNumberField(final Attributes atts) throws SAXException
  {
    getDataElementAttributes(atts);
    textElementFormatString = atts.getValue(FORMAT_ATT);
  }

  /**
   * Creates a date element (a text element that displays a date value).
   *
   * @param atts  the attributes.
   *
   * @throws SAXException if there is a SAX problem.
   */
  protected void startDateField(final Attributes atts) throws SAXException
  {
    getDataElementAttributes(atts);
    textElementFormatString = atts.getValue(FORMAT_ATT);
  }

  /**
   * Begins processing a number function element (which is a text element).
   *
   * @param atts  the attributes.
   *
   * @throws SAXException if there is a SAX problem.
   */
  protected void startNumberFunction(final Attributes atts) throws SAXException
  {
    getFunctionElementAttributes(atts);
    textElementFormatString = atts.getValue(FORMAT_ATT);
  }

  /**
   * Begins processing a date function element (which is a text element).
   *
   * @param atts  the attributes.
   *
   * @throws SAXException if there is a SAX problem.
   */
  protected void startDateFunction(final Attributes atts) throws SAXException
  {
    getFunctionElementAttributes(atts);
    textElementFormatString = atts.getValue(FORMAT_ATT);
  }

  /**
   * Begins processing a string function element (which is a text element).
   *
   * @param atts  the attributes.
   *
   * @throws SAXException if there is a SAX problem.
   */
  protected void startStringFunction(final Attributes atts) throws SAXException
  {
    getFunctionElementAttributes(atts);
  }

  /**
   * Ends a label tag, sets the static text for the label which was build during the
   * parsing. The label is added to the current band.
   *
   * @throws SAXException if there is a SAX problem.
   */
  protected void endLabel() throws SAXException
  {
    final TextElement te = ItemFactory.createLabelElement(
        textElementName,
        textElementBounds,
        textElementColor,
        textElementAlignment,
        textElementVerticalAlignment,
        null,
        getCurrentText());

    te.getStyle().setBooleanStyleProperty
        (ElementStyleSheet.DYNAMIC_HEIGHT, textElementDynamic);
    FontFactory.applyFontInformation(te.getStyle(), textElementFont);

    clearCurrentText();
    getCurrentBand().addElement(te);
  }

  /**
   * Ends the line element and adds it to the current band.
   *
   * @throws SAXException if there is a SAX problem.
   */
  protected void endLine() throws SAXException
  {
  }

  /**
   * Ends the shape element.
   *
   * @throws SAXException if there is a SAX problem.
   */
  protected void endShapeField() throws SAXException
  {
  }

  /**
   * Ends the rectangle shape element and adds it to the current band.
   *
   * @throws SAXException if there is a SAX problem.
   */
  protected void endRectangle() throws SAXException
  {
  }

  /**
   * Ends the image element and adds it to the current band.
   *
   * @throws SAXException if there is a SAX problem.
   */
  protected void endImageField() throws SAXException