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Tomosa Sarkar
2025-07-28 13:56:49 +05:30
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hrmsEjb/net/sf/jasperreports/engine/fill/JRFillBand.java Normal file
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package net.sf.jasperreports.engine.fill;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import net.sf.jasperreports.engine.JRBand;
import net.sf.jasperreports.engine.JRElementGroup;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRExpression;
import net.sf.jasperreports.engine.JRGroup;
import net.sf.jasperreports.engine.JROrigin;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
public class JRFillBand extends JRFillElementContainer implements JRBand {
private static final Log log = LogFactory.getLog(JRFillBand.class);
private JRBand parent = null;
private boolean isPrintWhenTrue = true;
private boolean isNewPageColumn = false;
private boolean isFirstWholeOnPageColumn = false;
private Map isNewGroupMap = new HashMap();
private Set nowEvaluationTimes;
private Map savedVariableValues = new HashMap();
protected JROrigin origin = null;
protected JRFillBand(JRBaseFiller filler, JRBand band, JRFillObjectFactory factory) {
super(filler, (JRElementGroup)band, factory);
this.parent = band;
if (this.deepElements.length > 0)
for (int i = 0; i < this.deepElements.length; i++)
this.deepElements[i].setBand(this);
initElements();
initConditionalStyles();
this.nowEvaluationTimes = new HashSet();
}
protected JROrigin getOrigin() {
return this.origin;
}
protected void setOrigin(JROrigin origin) {
this.origin = origin;
this.filler.getJasperPrint().addOrigin(origin);
}
protected void setNewPageColumn(boolean isNew) {
this.isNewPageColumn = isNew;
}
protected boolean isNewPageColumn() {
return this.isNewPageColumn;
}
protected boolean isFirstWholeOnPageColumn() {
return this.isFirstWholeOnPageColumn;
}
protected void setNewGroup(JRGroup group, boolean isNew) {
this.isNewGroupMap.put(group, isNew ? Boolean.TRUE : Boolean.FALSE);
}
protected boolean isNewGroup(JRGroup group) {
Boolean value = (Boolean)this.isNewGroupMap.get(group);
if (value == null)
value = Boolean.FALSE;
return value.booleanValue();
}
public int getHeight() {
return (this.parent != null) ? this.parent.getHeight() : 0;
}
public boolean isSplitAllowed() {
return this.parent.isSplitAllowed();
}
public void setSplitAllowed(boolean isSplitAllowed) {}
public JRExpression getPrintWhenExpression() {
return (this.parent != null) ? this.parent.getPrintWhenExpression() : null;
}
protected boolean isPrintWhenExpressionNull() {
return (getPrintWhenExpression() == null);
}
protected boolean isPrintWhenTrue() {
return this.isPrintWhenTrue;
}
protected void setPrintWhenTrue(boolean isPrintWhenTrue) {
this.isPrintWhenTrue = isPrintWhenTrue;
}
protected boolean isToPrint() {
return (isPrintWhenExpressionNull() || (!isPrintWhenExpressionNull() && isPrintWhenTrue()));
}
protected void evaluatePrintWhenExpression(byte evaluation) throws JRException {
boolean isPrintTrue = false;
JRExpression expression = getPrintWhenExpression();
if (expression != null) {
Boolean printWhenExpressionValue = (Boolean)this.filler.evaluateExpression(expression, evaluation);
if (printWhenExpressionValue == null) {
isPrintTrue = false;
} else {
isPrintTrue = printWhenExpressionValue.booleanValue();
}
}
setPrintWhenTrue(isPrintTrue);
}
protected JRPrintBand refill(int availableStretchHeight) throws JRException {
rewind();
restoreSavedVariables();
return fill(availableStretchHeight);
}
protected JRPrintBand fill() throws JRException {
return fill(0, false);
}
protected JRPrintBand fill(int availableStretchHeight) throws JRException {
return fill(availableStretchHeight, true);
}
protected JRPrintBand fill(int availableStretchHeight, boolean isOverflowAllowed) throws JRException {
this.filler.fillContext.ensureMasterPageAvailable();
if (Thread.currentThread().isInterrupted() || this.filler.isInterrupted()) {
if (log.isDebugEnabled())
log.debug("Fill " + this.filler.fillerId + ": interrupted");
this.filler.setInterrupted(true);
throw new JRFillInterruptedException();
}
this.filler.setBandOverFlowAllowed(isOverflowAllowed);
initFill();
if (this.isNewPageColumn && !this.isOverflow)
this.isFirstWholeOnPageColumn = true;
resetElements();
prepareElements(availableStretchHeight, isOverflowAllowed);
stretchElements();
moveBandBottomElements();
removeBlankElements();
this.isFirstWholeOnPageColumn = (this.isNewPageColumn && this.isOverflow);
this.isNewPageColumn = false;
this.isNewGroupMap = new HashMap();
JRPrintBand printBand = new JRPrintBand();
fillElements(printBand);
return printBand;
}
protected int getContainerHeight() {
return getHeight();
}
protected boolean isVariableUsedInSubreportReturns(String variableName) {
boolean used = false;
if (this.deepElements != null)
for (int i = 0; i < this.deepElements.length; i++) {
JRFillElement element = this.deepElements[i];
if (element instanceof JRFillSubreport) {
JRFillSubreport subreport = (JRFillSubreport)element;
if (subreport.usesForReturnValue(variableName)) {
used = true;
break;
}
}
}
return used;
}
protected void addNowEvaluationTime(JREvaluationTime evaluationTime) {
this.nowEvaluationTimes.add(evaluationTime);
}
protected void addNowEvaluationTimes(JREvaluationTime[] evaluationTimes) {
for (int i = 0; i < evaluationTimes.length; i++)
this.nowEvaluationTimes.add(evaluationTimes[i]);
}
protected boolean isNowEvaluationTime(JREvaluationTime evaluationTime) {
return this.nowEvaluationTimes.contains(evaluationTime);
}
protected int getId() {
return System.identityHashCode(this);
}
protected void evaluate(byte evaluation) throws JRException {
resetSavedVariables();
evaluateConditionalStyles(evaluation);
super.evaluate(evaluation);
}
protected void resetSavedVariables() {
this.savedVariableValues.clear();
}
protected void saveVariable(String variableName) {
if (!this.savedVariableValues.containsKey(variableName)) {
Object value = this.filler.getVariableValue(variableName);
this.savedVariableValues.put(variableName, value);
}
}
protected void restoreSavedVariables() {
for (Iterator it = this.savedVariableValues.entrySet().iterator(); it.hasNext(); ) {
Map.Entry entry = it.next();
String variableName = (String)entry.getKey();
Object value = entry.getValue();
JRFillVariable variable = this.filler.getVariable(variableName);
variable.setOldValue(value);
variable.setValue(value);
variable.setIncrementedValue(value);
}
}
protected boolean isEmpty() {
return (this == this.filler.missingFillBand || (getHeight() == 0 && (getElements() == null || (getElements()).length == 0) && getPrintWhenExpression() == null));
}
}