/sandbox/cheney/Sketch/src/java/javax/microedition/lcdui/List.java

package javax.microedition.lcdui;



import j2ab.android.lcdui.Toolkit;



import java.util.ArrayList;

import java.util.HashMap;

import java.util.Map;



import javax.microedition.midlet.MIDlet;



import android.view.KeyEvent;

import android.view.View;

import android.view.View.OnKeyListener;

import android.widget.ListAdapter;

import android.widget.ListView;

import android.widget.SimpleAdapter;



public class List extends Screen implements OnKeyListener {



	public static final int EXCLUSIVE = 0;

	public static final int IMPLICIT = 1;

	public static final int MULTIPLE = 2;

	public static final int POPUP = 3;

	

	private static final String KEY_IMAGE = "image";

	private static final String KEY_TEXT = "text";

	

	private String title;

	private int listType;

	private int selectedIndex;

	

	private ListView view;

	private ArrayList<Map<String,?>> data;

	

	private MIDlet midlet;

	

	private Command selectCommand;

	

	public List( String title, int listType ) {

		this.title = title;

		this.listType = listType;

		this.data = new ArrayList<Map<String,?>>();

	}

	

	

	public void disposeDisplayable() {

		this.view = null;

		this.data = null;

	}



	

	public View getView() {

		return this.view;

	}



	

	public void initDisplayable(MIDlet midlet) {

        this.midlet = midlet;

    	

        // TODO : use appearance mode to choose item

        Toolkit toolkit = midlet.getToolkit();

        this.view = (ListView)toolkit.inflate( 

        		toolkit.getResourceId( "layout.midplist" )

        );	

        this.view.setOnKeyListener( this );

        

        // set up the model

        ListAdapter model = new SimpleAdapter( 

        		midlet.getActivity(), 

        		this.data, 

        		toolkit.getResourceId( "layout.midplistitem" ),

        		new String[] { KEY_IMAGE, KEY_TEXT }, 

        		new int[]{ 

        			toolkit.getResourceId( "id.midplistitem_image" ), 

        			toolkit.getResourceId( "id.midplistitem_text" ) 

        		} 

        );

        this.view.setAdapter( model );

        this.view.setSelection( this.selectedIndex );

	}



	public int append( String stringPart, Image imagePart ) {

		HashMap<String, Object> row = new HashMap<String, Object>( 2 );

		// TODO : this isn't quite right, would be better to translate the Bitmap using 

		// some kind of renderer

		if( imagePart != null ) {

			row.put( KEY_IMAGE, imagePart.getBitmap() );

		}

		row.put( KEY_TEXT, stringPart );

		this.data.add( row );

		return this.data.size();

	}



	public Command getSelectCommand() {

		return selectCommand;

	}



	public void setSelectCommand(Command selectCommand) {

		this.selectCommand = selectCommand;

	}



	public int getSelectedIndex() {

		if( this.view != null ) {

			return this.view.getSelectedItemPosition();			

		} else {

			return this.selectedIndex;

		}

	}

	

	public String getString( int index ) {

		Map<String, ?> row = this.data.get( index );

		return (String)row.get( KEY_TEXT );

	}

	

	public void setSelectedIndex( int index, boolean value ) {

		this.selectedIndex = index;

		if( this.view != null ) {

			this.view.setItemChecked( index, value );

		}

	}



	

	public boolean onKey( View source, int key, KeyEvent event ) {

		boolean handled;

		if( event.getKeyCode() == KeyEvent.KEYCODE_ENTER && this.commandListener != null && this.selectCommand != null ) {

			handled = true;

			this.commandListener.commandAction( this.selectCommand, this );

		} else{

			handled = false;

		}

		return handled;

	}

	

}