/*
* WOTable.java
* (c) Copyright 2001 Apple Computer, Inc. All rights reserved.
* This a modified version.
* Original license: http://www.opensource.apple.com/apsl/
*/
package com.webobjects.woextensions;
import com.webobjects.appserver.WOComponent;
import com.webobjects.appserver.WOContext;
import com.webobjects.appserver.WORequest;
import com.webobjects.foundation.NSArray;
public class WOTable extends WOComponent {
/**
* Do I need to update serialVersionUID?
* See section 5.6 <cite>Type Changes Affecting Serialization</cite> on page 51 of the
* <a href="http://java.sun.com/j2se/1.4/pdf/serial-spec.pdf">Java Object Serialization Spec</a>
*/
private static final long serialVersionUID = 1L;
protected NSArray _list;
protected int _maxColumns;
public int currentRow;
public int currentCol;
protected int _rowCount;
protected int _colCount;
public int currentItemIndex;
public WOTable(WOContext aContext) {
super(aContext);
_resetInternalCaches();
}
@Override
public boolean isStateless() {
return true;
}
public NSArray list() {
if (_list==null) {
_list = (NSArray)_WOJExtensionsUtil.valueForBindingOrNull("list",this);
if (_list == null) {
_list = NSArray.EmptyArray;
}
}
return _list;
}
public int maxColumns() {
if (_maxColumns == -1) {
Object maxStr = valueForBinding("maxColumns");
if (maxStr != null) {
try {
_maxColumns = Integer.parseInt(maxStr.toString());
} catch (NumberFormatException e) {
throw new IllegalStateException("WOTable - problem parsing int from maxColumns binding "+e);
}
}
if (_maxColumns <= 0)
_maxColumns=1;
}
return _maxColumns;
}
public int rowCount() {
if (_rowCount == -1) {
NSArray aList = list();
int aMaxColCount = maxColumns();
int aListCount = aList.count();
int aRemainder = 0;
if (aMaxColCount!=0) {
_rowCount = aListCount / aMaxColCount;
aRemainder = aListCount % aMaxColCount;
}
if (aRemainder!=0) {
_rowCount++;
}
}
return _rowCount;
}
public int colCount() {
if (_colCount == -1) {
int aMaxColumns = maxColumns();
NSArray aList = list();
if (currentRow < (rowCount() - 1)) {
_colCount = aMaxColumns;
} else {
if (aMaxColumns!=0)
_colCount = aList.count() % aMaxColumns;
if (_colCount == 0) {
_colCount = aMaxColumns;
}
}
}
return _colCount;
}
public void setCurrentRow(Number newValue) {
if (newValue!=null) {
currentRow=newValue.intValue();
_colCount=-1;
currentCol=-1;
}
}
public void pushItem() {
NSArray aList = list();
int index = currentCol+maxColumns()*currentRow;
Object item = index < aList.count() ? aList.objectAtIndex(index) : null;
setValueForBinding(item, "item");
if (canSetValueForBinding("row")) {
setValueForBinding(Integer.valueOf(currentRow), "row");
}
if (canSetValueForBinding("col")) {
setValueForBinding(Integer.valueOf(currentCol), "col");
}
if (canSetValueForBinding("index")) {
setValueForBinding(Integer.valueOf(index), "index");
}
currentItemIndex++;
}
public void setCurrentCol(Number newValue){
currentCol=newValue.intValue();
pushItem();
}
protected void _resetInternalCaches() {
_list=null;
_rowCount=-1;
_colCount=-1;
currentCol=-1;
currentRow=-1;
currentItemIndex = 0;
_maxColumns = -1;
}
@Override
public void takeValuesFromRequest(WORequest aRequest, WOContext aContext) {
_resetInternalCaches();
super.takeValuesFromRequest(aRequest, aContext);
}
@Override
public void reset() {
_resetInternalCaches();
}
}