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/*******************************************************************************
* Copyright (c) 2006 Sybase, Inc. and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http:// www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.pagedesigner.jsf.ui.commands.jsfhtml;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jface.viewers.ISelection;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.eclipse.jst.jsf.core.internal.tld.IJSFConstants;
import org.eclipse.jst.jsf.core.internal.tld.ITLDConstants;
import org.eclipse.jst.pagedesigner.commands.DesignerCommand;
import org.eclipse.jst.pagedesigner.jsf.core.dom.JSFDOMUtil;
import org.eclipse.jst.pagedesigner.jsf.ui.elementedit.util.PanelGridUtil;
import org.eclipse.jst.pagedesigner.utils.DOMUtil;
import org.eclipse.jst.pagedesigner.utils.JSPUtil;
import org.eclipse.jst.pagedesigner.viewer.IHTMLGraphicalViewer;
/**
* @author mengbo
* @version 1.5
*/
public class PanelGridInsertColumnCommand extends DesignerCommand
{
private int _columnIndex;
private Element _panelGridEle;
/**
* construction
* @param viewer
* @param panelGrid
* @param columnIndex
*/
public PanelGridInsertColumnCommand(IHTMLGraphicalViewer viewer, Element panelGrid, int columnIndex)
{
super(CommandResources.getString("PanelGridInsertColumnCommand.Label.InsertColumn"), viewer); //$NON-NLS-1$
this._panelGridEle = panelGrid;
this._columnIndex = columnIndex;
}
/* (non-Javadoc)
* @see org.eclipse.gef.commands.Command#canExecute()
*/
public boolean canExecute()
{
if (this._columnIndex < 0)
{
return false;
}
return super.canExecute();
}
/* (non-Javadoc)
* @see org.eclipse.jst.pagedesigner.commands.DesignerCommand#doExecute()
*/
protected void doExecute()
{
int columns = DOMUtil.getIntAttributeIgnoreCase(_panelGridEle, IJSFConstants.ATTR_COLUMNS, 1);
if (columns < 1)
{
columns = 1;
}
int startPoint = 0;
if (_columnIndex > columns)
{
return;
}
else if (_columnIndex == columns)
{
startPoint = _columnIndex - 1;
}
else
{
startPoint = _columnIndex;
}
List children = JSFDOMUtil.getUIComponentChildren(_panelGridEle);
List toMove = new ArrayList();
for (int i = startPoint; i < children.size(); i += columns)
{
if (_columnIndex < columns)
{
toMove.add(children.get(i));
}
else
{
int tmp = i + 1;
if (tmp == children.size())
{
toMove.add(null);
}
else
{
toMove.add(children.get(i + 1));
}
}
}
// for (int i = 0, size = toMove.size(); i < size; i++)
int lastRowCells = (children.size() % columns == 0) ? columns : (children.size() % columns);
PanelGridUtil util = new PanelGridUtil(this._panelGridEle);
int uiRows = util.getUIRowCount();
int adds = uiRows;
if (this._columnIndex > lastRowCells)
{
adds += this._columnIndex - lastRowCells;
}
for (int i = 0, size = adds; i < size; i++)
{
Node child = createDefaultNode();
int toMoveSize = toMove.size();
Node node = null;
if (i < toMoveSize)
{
node = (Node) toMove.get(i);
}
_panelGridEle.insertBefore(child, node);
}
_panelGridEle.setAttribute(IJSFConstants.ATTR_COLUMNS, String.valueOf(columns + 1));
formatNode(_panelGridEle);
}
/* (non-Javadoc)
* @see org.eclipse.jst.pagedesigner.commands.DesignerCommand#getAfterCommandDesignerSelection()
*/
protected ISelection getAfterCommandDesignerSelection()
{
return toDesignSelection(this._panelGridEle);
}
private Node createDefaultNode()
{
String prefix = JSPUtil.getOrCreatePrefix(getModel(), ITLDConstants.URI_JSF_HTML, "h"); //$NON-NLS-1$
Element child = _panelGridEle.getOwnerDocument().createElement(IJSFConstants.TAG_OUTPUTTEXT);
child.setPrefix(prefix);
return child;
}
}
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