org.opencms.gwt.client.ui.input.CmsMultiSelectCell Maven / Gradle / Ivy
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/*
* This library is part of OpenCms -
* the Open Source Content Management System
*
* Copyright (c) Alkacon Software GmbH (http://www.alkacon.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* For further information about Alkacon Software, please see the
* company website: http://www.alkacon.com
*
* For further information about OpenCms, please see the
* project website: http://www.opencms.org
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.opencms.gwt.client.ui.input;
import org.opencms.util.CmsPair;
import org.opencms.util.CmsStringUtil;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import com.google.gwt.user.client.ui.Grid;
/**
* Implements a select cell that can contain multiple entries.
* And its value is a list of all selected entry values.
* The {@link #getValue()} returns the parsed String
* representation of the selected values, using a pipe
* '|' as separator.
*
* @since 8.5.0
*/
public class CmsMultiSelectCell extends A_CmsSelectCell {
/** The list of checkboxes. */
private List m_checkboxes = new ArrayList();
/** The Grid panel. */
private Grid m_checkboxWrapper = new Grid();
/** The select options of the multi check box. */
private Map m_items = new LinkedHashMap();
/** The value of the selection text. */
private String m_openerText;
/**
* Creates a CmsMultiSelectCell.
*
* @param optins the values witch should be shown
*/
@SuppressWarnings("boxing")
public CmsMultiSelectCell(Map> optins) {
int count = optins.size();
int i = 0, y = 0;
Map items = new LinkedHashMap();
m_checkboxWrapper = getGridLayout(count);
int modolo = m_checkboxWrapper.getColumnCount();
for (Map.Entry> entry : optins.entrySet()) {
String value = entry.getKey();
items.put(value, entry.getValue().getFirst());
CmsCheckBox checkbox = new CmsCheckBox(value);
// wrap the check boxes in FlowPanels to arrange them vertically
m_checkboxWrapper.setWidget(y, i % modolo, checkbox);
i++;
if ((i % modolo) == 0) {
y++;
}
checkbox.setChecked(Boolean.valueOf(entry.getValue().getSecond()));
m_checkboxes.add(checkbox);
}
m_items = new LinkedHashMap(items);
initWidget(m_checkboxWrapper);
}
/**
* Returns the selected CmsCheckBox.
*
* @param i the value of the selected CmsCheckBox
* @return CmsCheckBox Returns the selected CmsCheckBox
*/
public CmsCheckBox get(int i) {
return m_checkboxes.get(i);
}
/**
* Returns all CmsSelectBoxes.
*
* @return a list of CmsCheckBox
*/
public List getCheckbox() {
return m_checkboxes;
}
/**
* Returns the opener text.
*
* @return the opener text
*/
public String getOpenerText() {
return m_openerText;
}
/**
* Returns the set of values of the selected checkboxes.
*
* @return a set of strings
*/
public Set getSelected() {
Set result = new HashSet();
int i = 0;
for (Map.Entry entry : m_items.entrySet()) {
String key = entry.getKey();
CmsCheckBox checkBox = m_checkboxes.get(i);
if (checkBox.isChecked()) {
result.add(key);
}
i += 1;
}
return result;
}
/**
* @see org.opencms.gwt.client.ui.input.A_CmsSelectCell#getValue()
*/
@Override
public String getValue() {
List selected = new ArrayList(getSelected());
return CmsStringUtil.listAsString(selected, "|");
}
/**
* Sets the opener text.
*
* @param openerText the new opener text
*/
public void setOpenerText(String openerText) {
if (openerText != null) {
m_openerText = openerText;
}
}
/**
* Helper function to generate the grid layout.
* @param count
*
*@return the new grid
* */
private Grid getGridLayout(int count) {
Grid grid = new Grid();
int x, y, z, modolo = 0;
x = count % 3;
y = count % 5;
z = count % 7;
if ((z <= y) && (z <= x)) {
modolo = 7;
} else if ((y <= z) && (y <= x)) {
modolo = 5;
} else if ((x <= z) && (x <= y)) {
modolo = 3;
}
if (count < modolo) {
grid = new Grid(count, 1);
} else if ((count % modolo) == 0) {
grid = new Grid(count / modolo, modolo);
} else {
grid = new Grid((count / modolo) + 1, modolo);
}
return grid;
}
}