package org.madore.android.unicodeMap;

import java.util.Arrays;
import java.util.List;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.widget.*;
import android.app.ListActivity;
import android.app.ProgressDialog;

public final class UnicodeMapActivity extends ListActivity {

    protected static enum UnicodeRange {
	BASIC_LATIN(0x0000, 0x0080, "Basic Latin"),
	LATIN_1_SUPPLEMENT(0x0080, 0x0100, "Latin-1 Supplement"),
	LATIN_EXTENDED_A(0x0100, 0x0180, "Latin Extended-A"),
	LATIN_EXTENDED_B(0x0180, 0x0250, "Latin Extended-B"),
	IPA_EXTENSIONS(0x0250, 0x02b0, "IPA Extensions");
	protected final int from;  protected final int to;
	protected final String descr;
	UnicodeRange(int from, int to, String descr) {
	    this.from = from;
	    this.to = to;
	    this.descr = descr;
	}
	public String toString() { return this.descr; }
	public int getFrom() { return this.from; }
	public int getTo() { return this.to; }
    }

    protected final List<UnicodeRange> list
	= Arrays.asList(UnicodeRange.values());

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
	final ProgressDialog progress = new ProgressDialog(this);
	progress.setOwnerActivity(this);
	progress.setTitle("Loading Unicode database");
	progress.setMessage("Please wait");
	progress.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
	progress.show();
	final Handler handler = new Handler() {
		public void handleMessage(Message msg) {
		    int done = msg.getData().getInt("done");
		    int total = msg.getData().getInt("total");
		    progress.setProgress(done*10000/total);
		    if ( done >= total )
			progress.dismiss();
		}
	    };
	final Thread thr = new Thread() {
		public void run() {
		    UnicodeDatabase db
			= new UnicodeDatabase(UnicodeMapActivity.this);
		    db.populate(handler);
		}
	    };
	thr.start();
	setListAdapter(new ArrayAdapter<UnicodeRange>(this, R.layout.list_item, list));
	ListView lv = getListView();
	lv.setTextFilterEnabled(true);
	lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
		public void onItemClick(AdapterView<?> parent, View view,
					int position, long id) {
		    UnicodeRange it = (UnicodeRange)parent.getItemAtPosition(position);
		    Intent intent = new Intent(UnicodeMapActivity.this,
					       UnicodeListActivity.class);
		    intent.putExtra(UnicodeListActivity.EXTRA_FROM, it.getFrom());
		    intent.putExtra(UnicodeListActivity.EXTRA_TO, it.getTo());
		    startActivity(intent);
		}
	    });

    }

}