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/*
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 * File created by Jimmy
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 * at 2003-sep-07 11:26:29
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 */
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package Macbeth.Modules.modRemoteControl;
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import java.util.LinkedList;
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import java.util.Iterator;
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/**
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 * Keeps track of all modules that have requested a
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 * specific button.
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 * @author Jimmy
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 */
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public class ButtonRequests {
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    private LinkedList modules;
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    /**
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     * Creates a new instance of ButtonRequests.
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     * @param modulenames A list of modules that have requested
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     * this button.
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     */
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    public ButtonRequests(String[] modulenames) {
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        modules = new LinkedList();
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        if (modulenames!=null) {
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            for (int i=0; i<modulenames.length; i++) {
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                addRequest(modulenames[i]);
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            }
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        }
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    }
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    /**
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     * Creates a new instance of ButtonRequests.
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     */
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    public ButtonRequests() {
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        this(null);
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    }
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    /**
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     * Adds a request for this button.
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     * @param module The location of the module that requests this button.
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     */
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    public void addRequest(String module) {
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        //if this module hasn't already requested this button
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        if (!modules.contains(module)) {
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            //add a request
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            modules.add(module);
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        }
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    }
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    /**
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     * Returns a list of the names of all modules that have
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     * requested this button.
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     * @return A String array with all module names.
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     */
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    public String[] getModuleNames() {
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        String[] names = new String[modules.size()];
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        Iterator it = modules.iterator();
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        int i=0;
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        while (it.hasNext()) {
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            names[i++] = (String)it.next();
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        }
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        return names;
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    }
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}