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RingMenuItem.java
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134 lines (118 loc) · 3.12 KB
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package org.lcdproc.lcdjava;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
/**
* RingMenuItem.
* <p>Item to display a text and a status indicator.
* The status can be one of the strings specified for the item.
* @author StefanKrupop
*/
public class RingMenuItem extends AbstractMenuItem
{
private int _value;
private List<String> _items;
/**
* Constructor.
* @param id the of the action.
* @param menu the Submenu that knows about this MenuItem.
*/
protected RingMenuItem(String id, Submenu menu)
{
super(id, menu);
_items = new ArrayList<String>();
_value = 0;
}
/**
* Get the menu item type.
* @return the menu item type.
*/
public String getType()
{
return MENUITEM_RING;
}
public void setItems(List<String> items) {
_items = items;
_value = 0;
update();
}
/**
* Sets current value of the ring
* @param value current value
*/
public void setValue(String value) {
for (int i = 0; i < _items.size(); ++i) {
if (value.equals(_items.get(i))) {
_value = i;
}
}
update();
}
/**
* Sets current value of the ring but does not send the change to LCDd
* @param value current value
*/
public void setValueNoUpdate(int value) {
if (value >= 0 && value < _items.size()) {
_value = value;
}
}
/**
* Gets the current value of the ring
* @return value of the ring
*/
public String getValue() {
return _items.get(_value);
}
@Override
public String getData() {
StringBuilder strb = new StringBuilder();
strb.append(super.getData());
strb.append(" -value ");
strb.append(_value);
strb.append(" -strings \"");
boolean first = true;
for (String item : _items) {
if (!first) {
strb.append('\t');
}
strb.append(item);
first = false;
}
strb.append('"');
return strb.toString();
}
/**
* Construct a new RingMenuItem.
* @param menu the Submenu that owns the menu item.
* @param text the menu text.
* @param items the items in the ring
* @return a new RingMenuItem.
*/
public static RingMenuItem construct(Submenu menu, String text, String... items)
{
return construct(menu, text, Arrays.asList(items));
}
/**
* Construct a new RingMenuItem.
* @param menu the Submenu that owns the menu item.
* @param text the menu text.
* @param items the items in the ring
* @return a new RingMenuItem.
*/
public static RingMenuItem construct(Submenu menu, String text, List<String> items)
{
RingMenuItem menuItem = null;
try
{
menuItem = (RingMenuItem)menu.constructMenuItem(MENUITEM_RING);
menuItem.setItems(items);
menuItem.setText(text);
}
catch (LCDException e) //NOPMD
{
// Supress, would only get one if we asked for an invalid menu item.
}
return menuItem;
}
}