/*
* SelectWidget.java
*
* Copyright (C) 2009-12 by RStudio, Inc.
*
* Unless you have received this program directly from RStudio pursuant
* to the terms of a commercial license agreement with RStudio, then
* this program is licensed to you under the terms of version 3 of the
* GNU Affero General Public License. This program is distributed WITHOUT
* ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING THOSE OF NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Please refer to the
* AGPL (http://www.gnu.org/licenses/agpl-3.0.txt) for more details.
*
*/
package org.rstudio.core.client.widget;
import org.rstudio.core.client.theme.res.ThemeResources;
import com.google.gwt.event.dom.client.ChangeHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.HasVerticalAlignment;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.ListBox;
import com.google.gwt.user.client.ui.Panel;
import com.google.gwt.user.client.ui.Widget;
public class SelectWidget extends Composite
{
public SelectWidget(String label, String[] options)
{
this(label, options, false);
}
public SelectWidget(String label, String[] options, boolean listOnLeft)
{
this(label, options, null, false, true, listOnLeft);
}
public SelectWidget(String label,
String[] options,
String[] values,
boolean isMultipleSelect)
{
this(label, options, values, isMultipleSelect, false, false);
}
public SelectWidget(String label,
String[] options,
String[] values,
boolean isMultipleSelect,
boolean horizontalLayout,
boolean listOnLeft)
{
if (values == null)
values = options;
listBox_ = new ListBox(isMultipleSelect);
for (int i = 0; i < options.length; i++)
listBox_.addItem(options[i], values[i]);
Panel panel = null;
if (horizontalLayout)
{
horizontalPanel_ = new HorizontalPanel();
Label labelWidget = new Label(label);
if (listOnLeft)
{
horizontalPanel_.add(listBox_);
horizontalPanel_.add(labelWidget);
}
else
{
horizontalPanel_.add(labelWidget);
horizontalPanel_.add(listBox_);
}
horizontalPanel_.setCellVerticalAlignment(
labelWidget,
HasVerticalAlignment.ALIGN_MIDDLE);
panel = horizontalPanel_;
}
else
{
flowPanel_ = new FlowPanel();
flowPanel_.add(new Label(label, true));
panel = flowPanel_;
panel.add(listBox_);
}
initWidget(panel);
addStyleName(ThemeResources.INSTANCE.themeStyles().selectWidget());
}
public HandlerRegistration addChangeHandler(ChangeHandler handler)
{
return listBox_.addChangeHandler(handler);
}
public ListBox getListBox()
{
return listBox_;
}
public void setChoices(String[] options)
{
setChoices(options, options);
}
public void setChoices(String[] options, String[] values)
{
listBox_.clear();
for (int i = 0; i < options.length; i++)
addChoice(options[i], values[i]);
if (listBox_.getItemCount() > 0)
listBox_.setSelectedIndex(0);
}
public void addChoice(String option, String value)
{
listBox_.addItem(option, value);
}
public void setEnabled(boolean enabled)
{
listBox_.setEnabled(enabled);
}
public boolean isEnabled()
{
return listBox_.isEnabled();
}
public boolean setValue(String value)
{
for (int i = 0; i < listBox_.getItemCount(); i++)
if (value.equals(listBox_.getValue(i)))
{
listBox_.setSelectedIndex(i);
return true;
}
return false;
}
public String getValue()
{
if (listBox_.getSelectedIndex() < 0)
return null;
return listBox_.getValue(listBox_.getSelectedIndex());
}
public void addWidget(Widget widget)
{
if (horizontalPanel_ != null)
{
horizontalPanel_.add(widget);
horizontalPanel_.setCellVerticalAlignment(
widget,
HasVerticalAlignment.ALIGN_MIDDLE);
}
else
{
flowPanel_.add(widget);
}
}
public void insertValue(int index, String label, String value)
{
listBox_.insertItem(label, value, index);
}
private HorizontalPanel horizontalPanel_ = null;
private FlowPanel flowPanel_ = null;
private final ListBox listBox_;
}