Java 类net.sf.jasperreports.engine.design.JRDesignBand 实例源码

private void addFieldHeader(GridColumnVO columnVO) {
  JRDesignBand bHeader = (JRDesignBand) jasperDesign.getColumnHeader();
  JRDesignStaticText text = new JRDesignStaticText();
  text.setText(columnVO.getTitle());
  text.setWidth(columnVO.getWidth());
  text.setHeight(bHeader.getHeight());
  text.setX(px);
  // Set syle
  text.setFontName(gridReportVO.getHeaderBandStyle().getFontName());
  text.setFontSize(new Float(gridReportVO.getHeaderBandStyle().getFontSize()));
  text.setForecolor(gridReportVO.getHeaderBandStyle().getForeColor());
  text.setBold(gridReportVO.getHeaderBandStyle().isBold());
  text.setItalic(gridReportVO.getHeaderBandStyle().isItalic());
  text.setUnderline(gridReportVO.getHeaderBandStyle().isUnderline());
  if (log4j.isDebugEnabled())
    log4j.debug("Field Header, field: " + columnVO.getTitle() + " Width: " + columnVO.getWidth()
        + " X: " + px);
  bHeader.addElement(text);
}

protected JRBand createDetailBand(List<FillColumn> fillColumns)
{
    final JRDesignBand detailBand = new JRDesignBand();
    detailBand.setSplitType(SplitTypeEnum.PREVENT);

    ReportBandInfo bandInfo = new ReportBandInfo(detailBand, BandTypeEnum.DETAIL.getName());
    int xOffset = 0;
    for (FillColumn subcolumn : fillColumns)
    {
        DetailBandCreator subVisitor = new DetailBandCreator(
                bandInfo, subcolumn, xOffset, 0, 0);
        subVisitor.visit();
        xOffset = subVisitor.xOffset;
    }

    setPdfTags(bandInfo, false);

    return detailBand;
}

protected JRDesignBand createColumnHeader(List<FillColumn> fillColumns)
{
    JRDesignBand columnHeader = new JRDesignBand();
    columnHeader.setSplitType(SplitTypeEnum.PREVENT);

    ReportBandInfo bandInfo = new ReportBandInfo(columnHeader, BandTypeEnum.COLUMN_HEADER.getName());
    int xOffset = 0;
    for (FillColumn subcolumn : fillColumns)
    {
        ColumnHeaderCreator subVisitor = new ColumnHeaderCreator(
                bandInfo, subcolumn, xOffset, 0, 0, headerHtmlBaseProperties,
                new AtomicBoolean());
        subVisitor.visit();
        xOffset = subVisitor.xOffset;
    }

    setPdfTags(bandInfo, true);

    if (columnHeader.getHeight() == 0)
    {
        columnHeader = null;
    }
    return columnHeader;
}

protected JRDesignBand createPageFooter(List<FillColumn> fillColumns)
{
    JRDesignBand pageFooter = new JRDesignBand();
    pageFooter.setSplitType(SplitTypeEnum.PREVENT);

    ReportBandInfo bandInfo = new ReportBandInfo(pageFooter, BandTypeEnum.PAGE_FOOTER.getName());
    int xOffset = 0;
    for (FillColumn subcolumn : fillColumns)
    {
        PageFooterCreator subVisitor = new PageFooterCreator(
                bandInfo, subcolumn, xOffset, 0, 0);
        subVisitor.visit();
        xOffset = subVisitor.xOffset;
    }

    setPdfTags(bandInfo, false);

    if (pageFooter.getHeight() == 0)
    {
        pageFooter = null;
    }
    return pageFooter;
}

protected JRDesignBand createTitle(List<FillColumn> fillColumns)
{
    JRDesignBand title = new JRDesignBand();
    title.setSplitType(SplitTypeEnum.PREVENT);

    ReportBandInfo bandInfo = new ReportBandInfo(title, BandTypeEnum.TITLE.getName());
    int xOffset = 0;
    for (FillColumn subcolumn : fillColumns)
    {
        TitleCreator subVisitor = new TitleCreator(
                bandInfo, subcolumn, xOffset, 0, 0);
        subVisitor.visit();
        xOffset = subVisitor.xOffset;
    }

    setPdfTags(bandInfo, false);

    if (title.getHeight() == 0) //FIXMETABLE not sure we actually need this; maybe check the section is truly empty; do the same for the other sections as well
    {
        title = null;
    }
    return title;
}

protected JRDesignBand createSummary(List<FillColumn> fillColumns)
{
    JRDesignBand summary = new JRDesignBand();
    summary.setSplitType(SplitTypeEnum.PREVENT);

    ReportBandInfo bandInfo = new ReportBandInfo(summary, BandTypeEnum.SUMMARY.getName());
    int xOffset = 0;
    for (FillColumn subcolumn : fillColumns)
    {
        SummaryCreator subVisitor = new SummaryCreator(
                bandInfo, subcolumn, xOffset, 0, 0);
        subVisitor.visit();
        xOffset = subVisitor.xOffset;
    }

    setPdfTags(bandInfo, false);

    if (summary.getHeight() == 0)
    {
        summary = null;
    }
    return summary;
}

protected JRBand createGroupHeader(String groupName, List<FillColumn> fillColumns)
{
    JRDesignBand header = new JRDesignBand();
    header.setSplitType(SplitTypeEnum.PREVENT);

    ReportBandInfo bandInfo = new ReportBandInfo(header, BandTypeEnum.GROUP_HEADER + "-" + groupName);
    int xOffset = 0;
    for (FillColumn subcolumn : fillColumns)
    {
        GroupHeaderCreator subVisitor = new GroupHeaderCreator(groupName,
                bandInfo, subcolumn, xOffset, 0, 0);
        subVisitor.visit();
        xOffset = subVisitor.xOffset;
    }

    setPdfTags(bandInfo, false);

    if (header.getHeight() == 0)
    {
        header = null;
    }
    return header;
}

protected JRBand createGroupFooter(String groupName, List<FillColumn> fillColumns)
{
    JRDesignBand footer = new JRDesignBand();
    footer.setSplitType(SplitTypeEnum.PREVENT);

    ReportBandInfo bandInfo = new ReportBandInfo(footer, BandTypeEnum.GROUP_FOOTER + "-" + groupName);
    int xOffset = 0;
    for (FillColumn subcolumn : fillColumns)
    {
        GroupFooterCreator subVisitor = new GroupFooterCreator(groupName,
                bandInfo, subcolumn, xOffset, 0, 0);
        subVisitor.visit();
        xOffset = subVisitor.xOffset;
    }

    setPdfTags(bandInfo, false);

    if (footer.getHeight() == 0)
    {
        footer = null;
    }
    return footer;
}

/**
 * Gets the band4 point.
 * 
 * @param jd
 *          the jd
 * @param point
 *          the point
 * @return the band4 point
 */
public static MBand getBand4Point(INode jd, Point point) {
    INode res = jd;
    INode rNode = jd; // root node from drag&drop operation
    int xband = jd.getJasperDesign().getTopMargin();
    // iterate IGraphicElements, and look at their position
    // find the top level container for this element
    for (INode n : rNode.getChildren()) {
        if (n instanceof IGraphicElement) {
            Object de = n.getValue();
            if (de instanceof JRDesignBand) {
                JRDesignBand deband = (JRDesignBand) de;
                res = (ANode) n;
                if (point.y >= xband && point.y < xband + deband.getHeight()) {
                    // go to children, we have the band allready
                    break;
                }
                xband += deband.getHeight();
            }
        }
    }
    if (res instanceof MBand)
        return (MBand) res;
    return null;
}

/**
 * Gets the band location.
 * 
 * @param b
 *          the b
 * @param jd
 *          the jd
 * @return the band location
 */
public static int getBandLocation(JRBand b, JasperDesign jd) {

    int yLocation = jd.getTopMargin();
    List<JRBand> bands = ModelUtils.getBands(jd);

    for (JRBand tmpBand : bands) {
        // Detached background...
        if (tmpBand instanceof JRDesignBand) {
            if (((JRDesignBand) tmpBand).getOrigin().getBandTypeValue().equals(BandTypeEnum.BACKGROUND)) {
                // if (IReportManager.getInstance().isBackgroundSeparated())
                // {
                // yLocation += jd.getTopMargin();
                // yLocation += jd.getBottomMargin();
                // yLocation += 40;
                // }
            }
        }
        if (tmpBand == b)
            return yLocation;
        yLocation += tmpBand.getHeight();
    }

    return yLocation;
}

public String getDisplayText() {
    JRDesignBand value = (JRDesignBand) getValue();

    String hiddenText = new String();
    if (!isVisible()){
        hiddenText = Messages.MBand_hiddenLabel;
    }

    if (bandType.equals(BandTypeEnum.DETAIL)) {
        String index = ""; //$NON-NLS-1$
        if (bandIndex != -1)
            index = " " + String.valueOf(bandIndex); //$NON-NLS-1$
        if (value != null)
            return Messages.MBand_detail + index + " [" + value.getHeight() + "px]"+hiddenText;// + value.hashCode(); //$NON-NLS-1$ //$NON-NLS-2$
        return Messages.MBand_detail + index + " "; //$NON-NLS-1$
    }
    if (value == null)
        return MessagesByKeys.getString(bandType.getName());
    return MessagesByKeys.getString(value.getOrigin().getBandTypeValue().getName()+hiddenText);
}

public Object getPropertyValue(Object id) {
    JRDesignBand jrband = (JRDesignBand) getValue();
    if (jrband != null) {
        if (id.equals(JRDesignBand.PROPERTY_HEIGHT))
            return new Integer(jrband.getHeight());
        if (id.equals(JRDesignBand.PROPERTY_SPLIT_TYPE))
            return splitStyleD.getEnumValue(jrband.getSplitTypeValue());
        if (id.equals(JRDesignBand.PROPERTY_PRINT_WHEN_EXPRESSION)) {
            return ExprUtil.getExpression(jrband.getPrintWhenExpression());
        }
        if (id.equals(MGraphicElement.PROPERTY_MAP)) {
            // to avoid duplication I remove it first
            return jrband.getPropertiesMap().cloneProperties();
        }
    }
    return null;
}

public void setPropertyValue(Object id, Object value) {
    JRDesignBand jrband = (JRDesignBand) getValue();
    if (jrband != null) {
        if (id.equals(JRDesignBand.PROPERTY_HEIGHT)) {
            jrband.setHeight(Math.max(0, (Integer) Misc.nvl(value, Integer.valueOf(0))));
        } else if (id.equals(JRDesignBand.PROPERTY_SPLIT_TYPE))
            jrband.setSplitType((SplitTypeEnum) splitStyleD.getEnumValue(value));
        else if (id.equals(JRDesignBand.PROPERTY_PRINT_WHEN_EXPRESSION))
            jrband.setPrintWhenExpression(ExprUtil.setValues(jrband.getPrintWhenExpression(), value, null));
        else if (id.equals(MGraphicElement.PROPERTY_MAP)) {
            JRPropertiesMap v = (JRPropertiesMap) value;
            String[] names = jrband.getPropertiesMap().getPropertyNames();
            for (int i = 0; i < names.length; i++) {
                jrband.getPropertiesMap().removeProperty(names[i]);
            }
            names = v.getPropertyNames();
            for (int i = 0; i < names.length; i++)
                jrband.getPropertiesMap().setProperty(names[i], v.getProperty(names[i]));
            this.getPropertyChangeSupport().firePropertyChange(MGraphicElement.PROPERTY_MAP, false, true);
        }
    }
}

public Rectangle getBounds() {
    INode parent = getParent();
    Rectangle parentBounds = ((IGraphicElement) parent).getBounds();
    Rectangle bounds = new Rectangle(parentBounds);
    if (getValue() == null) {
        return parentBounds;
    } else {
        bounds.setSize(parentBounds.width, ((JRDesignBand) getValue()).getHeight());
        int h = 0;
        for (INode b : parent.getChildren()) {
            if (b == this)
                break;
            if (b instanceof MBand) {
                if (b.getValue() != null)
                    h += ((JRDesignBand) b.getValue()).getHeight() + BAND_GAP;
            }
        }
        bounds.setLocation(parentBounds.x, h + getJasperDesign().getTopMargin());
    }
    return bounds;
}

/**
 * Handle band changed.
 * 
 * @param evt
 *          the evt
 */
private void handleBandChanged(PropertyChangeEvent evt) {
    for (Iterator<?> it = getChildren().iterator(); it.hasNext();) {
        ANode node = (ANode) it.next();
        if (node instanceof MBand) {
            MBand mBand = (MBand) node;
            if (evt.getPropertyName().equals(mBand.getBandType().getName())) {
                mBand.setValue(evt.getNewValue());
                if (evt.getNewValue() != null)
                    ReportFactory.createElementsForBand(mBand, ((JRDesignBand) evt.getNewValue()).getChildren());
                else
                    mBand.removeChildren();
                mBand.propertyChange(new PropertyChangeEvent(mBand, "VALUE", evt.getOldValue(), evt.getNewValue())); //$NON-NLS-1$
                break;
            }
        }
    }
}

/**
 * Create a very minimal jasperdesign where the static text is placed. It is cached
 * since we don't need to create it everytime
 */
private static void createDesign()
 {
      jasperDesign = new JasperDesign();
      JRDesignBand jrBand = new JRDesignBand();
         jasperDesign.setTitle(jrBand);
      textElement = new JRDesignStaticText();
      jasperDesign.setLeftMargin(0);
      jasperDesign.setRightMargin(0);
      jasperDesign.setTopMargin(0);
      jasperDesign.setBottomMargin(0);
      jrBand.addElement(textElement);
      jrBand.setSplitType(SplitTypeEnum.STRETCH);
      textElement.setStretchType(StretchTypeEnum.NO_STRETCH);
      textElement.setPrintRepeatedValues(false);
      textElement.setPrintWhenDetailOverflows(true);
  }

public ResizeCommand(int alignement, MGraphicElement m) {
    super();
    this.alignement = alignement;
    jrElement = (JRDesignElement) m.getValue();
    INode n = m.getParent();
    //Get the real parent of the element if it's inside a subeditor
    if (n instanceof MPage){
        MPage page = (MPage)n;
        n = page.getRealParent();
    }
    if (n instanceof IContainer) {
        if (n instanceof MBand) {
            // height of band, width of Report - margins
            JRDesignBand band = (JRDesignBand) ((MBand) n).getValue();
            int h = band.getHeight();
            JasperDesign jasperDesign = m.getJasperDesign();
            int w = jasperDesign.getPageWidth() - jasperDesign.getLeftMargin() - jasperDesign.getRightMargin();
            parent = new Dimension(w, h);
        } else if (n instanceof IGraphicElementContainer)
            parent = ((IGraphicElementContainer) n).getSize();
    }
}

public AlignCommand(int alignement, MGraphicElement m){
    super();
    this.alignement = alignement;
    jrElement = (JRDesignElement) m.getValue();

    INode n = m.getParent();
    if (n instanceof IContainer) {
        if (n instanceof MBand) {
            // height of band, width of Report - margins
            int h = ((JRDesignBand) ((MBand) n).getValue()).getHeight();
            JasperDesign jasperDesign = m.getJasperDesign();
            int w = jasperDesign.getPageWidth() - jasperDesign.getLeftMargin() - jasperDesign.getRightMargin();
            parent = new Dimension(w, h);
        } else if (n instanceof IGraphicElementContainer)
            parent = ((IGraphicElementContainer) n).getSize();
    }
}

protected IFigure createFigure() {
    JRDesignBand jrBand = getBand();
    BandTypeEnum bandTypeValue = jrBand.getOrigin().getBandTypeValue();
    boolean drawColumns = bandTypeValue.equals(BandTypeEnum.COLUMN_FOOTER)
            || bandTypeValue.equals(BandTypeEnum.COLUMN_HEADER) || bandTypeValue.equals(BandTypeEnum.GROUP_FOOTER)
            || bandTypeValue.equals(BandTypeEnum.GROUP_HEADER) || bandTypeValue.equals(BandTypeEnum.COLUMN_HEADER)
            || bandTypeValue.equals(BandTypeEnum.DETAIL);

    BandFigure rect = new BandFigure(drawColumns, getModel());
    rect.setForegroundColor(ColorConstants.blue);
    setupBandFigure(rect);

    figure = rect;
    setBandNameShowing(rect);
    setMarginColor();
    return rect;
}

private static void addBands(List<ColumnFieldTO> columnFields, JasperDesign jasperDesign, boolean isGrid, Locale locale) {
    JRDesignBand band;
    // Title
    if (!isGrid) {
        band = buildTitleBand(jasperDesign);
        jasperDesign.setTitle(band);
    }
    // Page header
    band = buildPageHeaderBand(columnFields, jasperDesign, isGrid);
    jasperDesign.setPageHeader(band);
    // Column header
    // Detail
    band = buildDetailBand(columnFields, jasperDesign, isGrid, locale);
    ((JRDesignSection) jasperDesign.getDetailSection()).addBand(band);
    // Column footer
    // Page footer
    if (!isGrid) {
        band = buildPageFooterBand();
        jasperDesign.setPageFooter(band);
    }
    // Summary
}

public void dropFieldElementAt(Scene theScene, JasperDesign jasperDesign, JRDesignComponentElement element, Point location)
{
    if (theScene instanceof ReportObjectScene)
    {
        Point p = theScene.convertViewToScene( location );

        // find the band...
        JRDesignBand b = ModelUtils.getBandAt(jasperDesign, p);
        int yLocation = ModelUtils.getBandLocation(b, jasperDesign);
        Point pLocationInBand = new Point(p.x - jasperDesign.getLeftMargin(),
                                          p.y - yLocation);
        if (b != null)
        {

            // if the band is not a detail, propose to aggregate the value...
            if (b.getOrigin().getBandTypeValue() == BandTypeEnum.TITLE)
            {
                ((StandardMapComponent)(element.getComponent())).setEvaluationTime(EvaluationTimeEnum.REPORT);
            }
        }
   }

    super.dropElementAt(theScene, jasperDesign, element, location);
}

public void dropFieldElementAt(Scene theScene, JasperDesign jasperDesign, JRDesignComponentElement element, Point location)
{
    if (theScene instanceof ReportObjectScene)
    {
        Point p = theScene.convertViewToScene( location );

        // find the band...
        JRDesignBand b = ModelUtils.getBandAt(jasperDesign, p);
        int yLocation = ModelUtils.getBandLocation(b, jasperDesign);
        Point pLocationInBand = new Point(p.x - jasperDesign.getLeftMargin(),
                                          p.y - yLocation);
        if (b != null)
        {

            // if the band is not a detail, propose to aggregate the value...
            if (b.getOrigin().getBandTypeValue() == BandTypeEnum.TITLE)
            {
                ((SpiderChartComponent)(element.getComponent())).setEvaluationTime(EvaluationTimeEnum.REPORT);
            }
        }
   }

    super.dropElementAt(theScene, jasperDesign, element, location);
}

public void dropFieldElementAt(Scene theScene, JasperDesign jasperDesign, JRDesignComponentElement element, Point location)
{
    if (theScene instanceof ReportObjectScene)
    {
        Point p = theScene.convertViewToScene( location );

        // find the band...
        JRDesignBand b = ModelUtils.getBandAt(jasperDesign, p);
        int yLocation = ModelUtils.getBandLocation(b, jasperDesign);
        Point pLocationInBand = new Point(p.x - jasperDesign.getLeftMargin(),
                                          p.y - yLocation);
        if (b != null)
        {

            // if the band is not a detail, propose to aggregate the value...
            if (b.getOrigin().getBandTypeValue() == BandTypeEnum.TITLE)
            {
                ((SortComponent)(element.getComponent())).setEvaluationTime(EvaluationTimeEnum.REPORT);
            }
        }
   }

    super.dropElementAt(theScene, jasperDesign, element, location);
}

public void dropFieldElementAt(Scene theScene, JasperDesign jasperDesign, JRDesignComponentElement element, Point location)
{
    if (theScene instanceof ReportObjectScene)
    {
        Point p = theScene.convertViewToScene( location );

        // find the band...
        JRDesignBand b = ModelUtils.getBandAt(jasperDesign, p);
        int yLocation = ModelUtils.getBandLocation(b, jasperDesign);
        Point pLocationInBand = new Point(p.x - jasperDesign.getLeftMargin(),
                                          p.y - yLocation);
        if (b != null)
        {

            // if the band is not a detail, propose to aggregate the value...
            if (b.getOrigin().getBandTypeValue() == BandTypeEnum.TITLE)
            {
                ((HtmlComponent)(element.getComponent())).setEvaluationTime(EvaluationTimeEnum.REPORT);
            }
        }
   }

    super.dropElementAt(theScene, jasperDesign, element, location);
}

public static int getBandLocation(JRBand b, JasperDesign jd)
{
    int yLocation = jd.getTopMargin();
    List<JRBand> bands = ModelUtils.getBands(jd);

    for (JRBand tmpBand : bands)
    {
        // Detached background...
        if (tmpBand instanceof JRDesignBand)
        {
            if (((JRDesignBand)tmpBand).getOrigin().getBandTypeValue() == BandTypeEnum.BACKGROUND)
            {
                if (IReportManager.getInstance().isBackgroundSeparated())
                {
                    yLocation += jd.getTopMargin();
                    yLocation += jd.getBottomMargin();
                    yLocation += 40;
                }
            }
        }
        if (tmpBand == b) return yLocation;
        yLocation += tmpBand.getHeight();
    }

    return yLocation;
}

public void propertyChange(PropertyChangeEvent evt) {

    Runnable r = null;

    if (evt.getPropertyName() == null) return;
    if (evt.getPropertyName().equals( JRDesignBand.PROPERTY_HEIGHT))
    {
        r = new Runnable(){  
             public void run()  {
                ((ReportObjectScene)getScene()).refreshDocument();
            }};
    }
    else if (evt.getPropertyName().equals( JRDesignBand.PROPERTY_CHILDREN))
    {
        r = new Runnable(){  
             public void run()  {
                //((ReportObjectScene)getScene()).refreshElementGroup( (JRDesignBand)band);
            }};
    }

    if (r != null)
    {
         ThreadUtils.invokeInAWTThread(r);
    }
}

public void dropFieldElementAt(Scene theScene, JasperDesign jasperDesign, JRDesignChart element, Point location)
{
    if (theScene instanceof ReportObjectScene)
    {
        Point p = theScene.convertViewToScene( location );

        // find the band...
        JRDesignBand b = ModelUtils.getBandAt(jasperDesign, p);
        int yLocation = ModelUtils.getBandLocation(b, jasperDesign);
        Point pLocationInBand = new Point(p.x - jasperDesign.getLeftMargin(),
                                          p.y - yLocation);
        if (b != null)
        {

            // if the band is not a detail, propose to aggregate the value...
            if (b.getOrigin().getBandTypeValue() == BandTypeEnum.TITLE)
            {
                element.setEvaluationTime( EvaluationTimeEnum.REPORT);
            }
        }

    }

    super.dropElementAt(theScene, jasperDesign, element, location);
}

@Override
public void undo() throws CannotUndoException {

    super.undo();

    if (oldBand != null && newBand != oldBand)
    {
        int y1 = ModelUtils.getBandLocation(newBand, getJasperDesign());
        int y0 = ModelUtils.getBandLocation(oldBand, getJasperDesign());

        int deltaBand = y0 - y1;
        // Update element band...
        newBand.getChildren().remove(getElement());
        //oldBand.removeElement(dew.getElement());

        // Update the element coordinates...
        getElement().setElementGroup(oldBand);
        getElement().setY(getElement().getY() - deltaBand);
        oldBand.getChildren().add(getElement());
        newBand.getEventSupport().firePropertyChange(JRDesignBand.PROPERTY_CHILDREN, null, null);
        oldBand.getEventSupport().firePropertyChange(JRDesignBand.PROPERTY_CHILDREN, null, null);
    }

}

@Override
public void redo() throws CannotRedoException {

    super.redo();

    if (newBand != null && newBand != oldBand)
    {
        int y1 = ModelUtils.getBandLocation(newBand, getJasperDesign());
        int y0 = ModelUtils.getBandLocation(oldBand, getJasperDesign());

        int deltaBand = y0 - y1;
        // Update element band...
        oldBand.getChildren().remove(getElement());
        //oldBand.removeElement(dew.getElement());

        // Update the element coordinates...
        getElement().setElementGroup(newBand);
        getElement().setY(getElement().getY() + deltaBand);
        newBand.getChildren().add(getElement());
        newBand.getEventSupport().firePropertyChange(JRDesignBand.PROPERTY_CHILDREN, null, null);
        oldBand.getEventSupport().firePropertyChange(JRDesignBand.PROPERTY_CHILDREN, null, null);
    }

}

private boolean isInDetailBand(Point location)
{
    Scene scene = OutlineTopComponent.getDefault().getCurrentJrxmlVisualView().getReportDesignerPanel().getActiveScene();
    if (scene != null && scene instanceof ReportObjectScene)
    {
        JasperDesign jd = ((ReportObjectScene)scene).getJasperDesign();
        Point p = scene.convertViewToScene(location);

        JRDesignBand band = ModelUtils.getBandAt(jd, p);

        if (band != null && band.getOrigin().getBandTypeValue().equals(BandTypeEnum.DETAIL))
        {
            return true;
        }
    }
    return false;
}

private void addElement(JRDesignElement element, JRElementGroup elementGroup) {

        if (elementGroup instanceof JRDesignElementGroup)
        {
            ((JRDesignElementGroup)elementGroup).addElement(element);
        }
        else if (elementGroup instanceof JRDesignBand)
        {
            ((JRDesignBand)elementGroup).addElement(element);
        }
        else if (elementGroup instanceof JRDesignCellContents)
        {
            ((JRDesignCellContents)elementGroup).addElement(element);
        }
        else if (elementGroup instanceof JRDesignFrame)
        {
            ((JRDesignFrame)elementGroup).addElement(element);
        }
    }

private void addElementGroup(JRDesignElementGroup element, JRElementGroup elementGroup) {

        if (elementGroup instanceof JRDesignElementGroup)
        {
            ((JRDesignElementGroup)elementGroup).addElementGroup(element);
        }
        else if (elementGroup instanceof JRDesignBand)
        {
            ((JRDesignBand)elementGroup).addElementGroup(element);
        }
        else if (elementGroup instanceof JRDesignCellContents)
        {
            ((JRDesignCellContents)elementGroup).addElementGroup(element);
        }
        else if (elementGroup instanceof JRDesignFrame)
        {
            ((JRDesignFrame)elementGroup).addElementGroup(element);
        }
    }

private void removeElementGroup(JRDesignElementGroup element, JRElementGroup elementGroup) {

        if (elementGroup instanceof JRDesignElementGroup)
        {
            ((JRDesignElementGroup)elementGroup).removeElementGroup(element);
        }
        else if (elementGroup instanceof JRDesignBand)
        {
            ((JRDesignBand)elementGroup).removeElementGroup(element);
        }
        else if (elementGroup instanceof JRDesignCellContents)
        {
            ((JRDesignCellContents)elementGroup).removeElementGroup(element);
        }
        else if (elementGroup instanceof JRDesignFrame)
        {
            ((JRDesignFrame)elementGroup).removeElementGroup(element);
        }
    }

public void addBandSeparatorWidget(JRBand b, int yLocation)
{
    if (b == null) return;

    if (b instanceof JRDesignBand &&
        ((JRDesignBand)b).getOrigin().getBandTypeValue() == BandTypeEnum.BACKGROUND)
    {
        ((JRDesignBand)b).getEventSupport().removePropertyChangeListener(JRDesignBand.PROPERTY_HEIGHT, this);
        if (IReportManager.getInstance().isBackgroundSeparated() && b.getHeight() == 0)
        {
            ((JRDesignBand)b).getEventSupport().addPropertyChangeListener(JRDesignBand.PROPERTY_HEIGHT, this);
            return;
        }
    }

    BandSeparatorWidget bbw = new BandSeparatorWidget(this, b);
    bbw.getActions().addAction( new BandMoveAction(true, InputEvent.SHIFT_DOWN_MASK) );
    bbw.getActions().addAction( new BandMoveAction() );
    bbw.getActions().addAction( new BandDblClickResizeAction());
    bandSeparatorsLayer.addChild(bbw);
    bandLayer.addChild(new BandWidget(this, b));
}

public BandWidget(ReportObjectScene scene, JRBand band) 
    {
        super(scene, Orientation.HORIZONTAL);
        this.band = band;

        // We set a border to improve the sensible area....
//        setBorder( BorderFactory.createEmptyBorder(0, 3) );
//        setCursor( Cursor.getPredefinedCursor( Cursor.S_RESIZE_CURSOR) );
//        setForeground(ReportObjectScene.DESIGN_LINE_COLOR);

        // Add a listener to the band changes...
        if (band instanceof JRDesignBand)
        {
            ((JRDesignBand)band).getEventSupport().addPropertyChangeListener(this);
        }

        setToolTipText(ModelUtils.nameOf(band, scene.getJasperDesign()));

        updateBounds();
    }

public void propertyChange(PropertyChangeEvent evt) {

        Runnable r = null;

        if (evt.getPropertyName() == null) return;
        if (evt.getPropertyName().equals( JRDesignBand.PROPERTY_HEIGHT))
        {
            r = new Runnable(){  
                 public void run()  {
                    ((ReportObjectScene)getScene()).refreshDocument();
                }};
        }
//      The children update is performed by the band separators widget!!!!  
//        else if (evt.getPropertyName().equals( JRDesignBand.PROPERTY_CHILDREN))
//        {
//            r = new Runnable(){  
//                 public void run()  {
//                    ((ReportObjectScene)getScene()).refreshElementGroup( (JRDesignBand)band);
//                }};
//        }

        if (r != null)
        {
             ThreadUtils.invokeInAWTThread(r);
        }
    }

public BandSeparatorWidget(ReportObjectScene scene, JRBand b) {
    super(scene, Orientation.HORIZONTAL);
    this.band=b;

    // We set a border to improve the sensible area....
    setBorder( BorderFactory.createEmptyBorder(0, 3) );
    setCursor( Cursor.getPredefinedCursor( Cursor.S_RESIZE_CURSOR) );
    setForeground(ReportObjectScene.DESIGN_LINE_COLOR);

    // Add a listener to the band changes...
    if (b instanceof JRDesignBand)
    {
        ((JRDesignBand)b).getEventSupport().addPropertyChangeListener(this);
        if (((JRDesignBand)b).getOrigin().getGroupName() != null)
        {
            String gname = ((JRDesignBand)b).getOrigin().getGroupName();
            JRDesignGroup group = (JRDesignGroup) scene.getJasperDesign().getGroupsMap().get(gname);
            if (group != null)
            {
                group.getEventSupport().addPropertyChangeListener(JRDesignGroup.PROPERTY_NAME , this );
            }
        }
    }

    updateBounds();
}

public JRBand createTitle(final ReportInfo report, final String title) throws Exception {
    final JRDesignBand retval = new JRDesignBand();
    retval.setHeight(93);

    final JRDesignTextField headerLine1 = h1("$P{report}.getInstitution()").toTextField();
    addDesignElementTo(retval, headerLine1, 0, 0, 356, 30);
    final JRDesignStaticText headerLine2 = h5(title + " for # ").toStaticText();
    addDesignElementTo(retval, headerLine2, 0, 31, 426, 24);
    final JRDesignTextField headerLine3 = h5("$P{report}.getTripId()").toTextField();
    addDesignElementTo(retval, headerLine3, 275, 31, 146, 24);
    final JRDesignStaticText headerLine4 = h5("Purpose: ").toStaticText();
    addDesignElementTo(retval, headerLine4, 0, 52, 100, 20);
    final JRDesignStaticText headerLine5 = h5("Dates: ").toStaticText();
    addDesignElementTo(retval, headerLine5, 0, 72, 100, 20);
    final JRDesignTextField headerLine4Field1 = h5("$P{report}.getPurpose()").toTextField();
    addDesignElementTo(retval, headerLine4Field1, 65, 52, 472, 20);
    final JRDesignTextField headerLine5Field1 = h5("$P{report}.getBeginDate()").toTextField(java.util.Date.class);
    addDesignElementTo(retval, headerLine5Field1, 45, 72, 75, 20);
    final JRDesignTextField headerLine5Field2 = h5("$P{report}.getEndDate()").toTextField(java.util.Date.class);
    addDesignElementTo(retval, headerLine5Field2, 150, 72, 75, 20);

    return retval;
}

/**
 * Create a detail section in a {@link JasperReport}. Checks the {@link JasperReport} fields for a
 * {@link Detail} annotation and processes that {@link Detail} field.
 */
public JRBand createDetail(final Field subReport) throws Exception {
    final JRDesignBand retval = new JRDesignBand();

    retval.setHeight(SUBREPORT_HEIGHT - 25);

    LOG.debug("Subreport Detail band has height of "+ retval.getHeight());

    // In this case, we are creating a subreport and subreports have either a crosstab or not
    LOG.debug("Checking if "+ subReport+ " is a crosstab "+ isCrosstab(subReport));
    if (isCrosstab(subReport)) {
        final JRDesignCrosstab crosstab = createCrosstab();
        LOG.debug("Got crosstab of height "+ crosstab.getHeight()+
              " and width "+ crosstab.getWidth()+
              " adding to design of height "+ retval.getHeight());

        retval.addElement(crosstab);
    }

    return retval;
}

/**
 * Create a summary section in a {@link JasperReport}. Checks the {@link JasperReport} fields for a
 * {@link Summary} annotation and processes that {@link Summary} field.
 *
 * @return subreport is the {@link SubReport} {@link Field}
 * @return {@link JRBand} of the summary that goes into a subreport
 */
public JRBand createSummary(final Field subReport) throws Exception {
    final JRDesignBand retval = new JRDesignBand();

    retval.setHeight(SUBREPORT_HEIGHT);

    LOG.debug("Summary band has height of "+ retval.getHeight());

    // In this case, we are creating a subreport and subreports have either a crosstab or not
    LOG.debug("Checking if "+ subReport+ " is a crosstab "+ isCrosstab(subReport));
    if (isCrosstab(subReport)) {
        final JRDesignCrosstab crosstab = createCrosstab();
        LOG.debug("Got crosstab of height "+ crosstab.getHeight()+ " and width "+ crosstab.getWidth()+ " adding to design of height "+ retval.getHeight());

        retval.addElement(crosstab);
    }

    return retval;
}