litesoft
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package org.litesoft.GWT.client.widgets.nonpublic;
import java.util.*;
import com.google.gwt.user.client.*;
import com.google.gwt.user.client.ui.*;
import org.litesoft.core.util.*;
public abstract class AbstractSizeableComplexPanel extends AbstractSizeablePanel
{
private WidgetCollection mChildren = new WidgetCollection( this );
/**
* Gets the list of children contained in this panel.
*
* @return a collection of child widgets
*/
protected WidgetCollection getChildren()
{
return mChildren;
}
protected Widget getWidget( int index )
{
return getChildren().get( index );
}
protected int getWidgetCount()
{
return getChildren().size();
}
protected int getWidgetIndex( Widget child )
{
return getChildren().indexOf( child );
}
public boolean anyChildren()
{
return (mChildren.size() != 0);
}
public Iterator iterator()
{
return mChildren.iterator();
}
public boolean remove( Widget w )
{
// Make sure this panel actually contains the child widget.
if ( !mChildren.contains( w ) )
{
return false;
}
// Disown it.
disown( w );
mChildren.remove( w );
return true;
}
/**
* Adds a new child widget to the panel.
*
* @param w the child widget to be added
* @param container the element within which the child will be contained
*/
protected void add( Widget w, Element container )
{
insert( w, container, mChildren.size() );
}
/**
* Inserts a new child widget into the panel.
*
* @param child the child widget to be added
* @param container the element within which the child will be contained
* @param beforeIndex the index before which the widget will be added
*/
protected void insert( Widget child, Element container, int beforeIndex )
{
beforeIndex = adjustIndexIfChildInteracts( beforeIndex, child );
adopt( child, container );
mChildren.insert( child, beforeIndex );
}
protected int adjustIndexIfChildInteracts( int pBeforeIndex, Widget pChild )
{
validateInsertionIndex( pBeforeIndex );
if ( (pChild.getParent() == this) && (getWidgetIndex( pChild ) < pBeforeIndex) )
{
return pBeforeIndex - 1;
}
return pBeforeIndex;
}
protected void validateReadIndex( int pIndex )
{
UtilsCommon.validateIndex( pIndex, getWidgetCount(), false );
}
protected void validateInsertionIndex( int pIndex )
{
UtilsCommon.validateIndex( pIndex, getWidgetCount(), true );
}
}
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Revision |
Author |
Commited |
Message |
2
|
GeorgeS
|
Sun 07 Feb, 2010 12:50:58 +0000 |
|