/**
* Triggers the visible state of the specified itemband element. If the named element was visible
* at the last call, it gets now invisible and vice versa. This creates the effect, that an
* element is printed every other line.
*
* @param event the current report event.
*/
private void triggerVisibleState(final ReportEvent event) {
// avoid divide by zero exception
if (numberOfElements == 0) {
return;
}
if ((count % numberOfElements) == 0) {
trigger = (!trigger);
}
count += 1;
final ItemBand itemBand = event.getReport().getItemBand();
if (itemBand == null) {
return;
}
if (element == null) {
if (trigger) {
itemBand.getStyle().setStyleProperty(ElementStyleKeys.BACKGROUND_COLOR, visibleBackground);
} else {
itemBand
.getStyle()
.setStyleProperty(ElementStyleKeys.BACKGROUND_COLOR, invisibleBackground);
}
} else {
final Element[] e = FunctionUtilities.findAllElements(itemBand, getElement());
if (e.length > 0) {
for (int i = 0; i < e.length; i++) {
if (trigger) {
e[i].getStyle().setStyleProperty(ElementStyleKeys.BACKGROUND_COLOR, visibleBackground);
} else {
e[i].getStyle()
.setStyleProperty(ElementStyleKeys.BACKGROUND_COLOR, invisibleBackground);
}
}
} else {
if (warned == false) {
RowBandingFunction.logger.warn(
"The Band does not contain an element named " + getElement());
warned = true;
}
}
}
}
/**
* Triggers the visible state of the specified itemband element. If the named element was visible
* at the last call, it gets now invisible and vice versa. This creates the effect, that an
* element is printed every other line.
*
* @param event the current report event.
*/
private void triggerVisibleStateCrosstab(final ReportEvent event) {
if ((count % numberOfElements) == 0) {
trigger = (!trigger);
}
count += 1;
final CrosstabCellBody cellBody = event.getReport().getCrosstabCellBody();
if (cellBody == null) {
return;
}
if (element == null) {
final int elementCount = cellBody.getElementCount();
for (int i = 1; i < elementCount; i += 1) {
final Element cell = cellBody.getElement(i);
if (trigger) {
cell.getStyle().setStyleProperty(ElementStyleKeys.BACKGROUND_COLOR, visibleBackground);
} else {
cell.getStyle().setStyleProperty(ElementStyleKeys.BACKGROUND_COLOR, invisibleBackground);
}
}
} else {
final Element[] e = FunctionUtilities.findAllElements(cellBody, getElement());
if (e.length > 0) {
for (int i = 0; i < e.length; i++) {
if (trigger) {
e[i].getStyle().setStyleProperty(ElementStyleKeys.BACKGROUND_COLOR, visibleBackground);
} else {
e[i].getStyle()
.setStyleProperty(ElementStyleKeys.BACKGROUND_COLOR, invisibleBackground);
}
}
} else {
if (warned == false) {
RowBandingFunction.logger.warn(
"The cell-body does not contain an element named " + getElement());
warned = true;
}
}
}
}