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package org.madore.android.unicodeMap;
import java.util.Arrays;
import java.util.List;
import java.util.ArrayList;
import java.util.Formatter;
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.view.Window;
import android.view.KeyEvent;
import android.widget.*;
import android.text.ClipboardManager;
import android.app.ListActivity;
import android.app.Dialog;
import android.app.ProgressDialog;
public final class UnicodeMapActivity extends ListActivity {
protected UnicodeDatabase db;
protected final List<UnicodeDisplayable> rootList
= new ArrayList<UnicodeDisplayable>(200);
protected final List<UnicodeArrayAdapter> stack
= new ArrayList<UnicodeArrayAdapter>(10);
protected final List<Integer> positionStack
= new ArrayList<Integer>(10);
protected final List<Integer> positionYStack
= new ArrayList<Integer>(10);
EditText textForm;
protected void launchPopulation() {
final ProgressDialog progress = new ProgressDialog(this);
progress.setOwnerActivity(this);
progress.setTitle(R.string.loading_database_title);
progress.setMessage(getResources().getText(R.string.loading_database_msg));
progress.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progress.setCancelable(false);
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.setMax(total);
progress.setProgress(done);
if ( done >= total )
progress.dismiss();
}
};
final Thread thr = new Thread() {
public void run() {
final UnicodeDatabase writeDb
= new UnicodeDatabase(UnicodeMapActivity.this);
writeDb.populate(handler);
}
};
thr.start();
}
protected class MapItemClickListener
implements AdapterView.OnItemClickListener,
AdapterView.OnItemLongClickListener {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
UnicodeDisplayable it
= (UnicodeDisplayable)parent.getItemAtPosition(position);
if ( it instanceof UnicodeCharacter )
textForm.append(((UnicodeCharacter)it).getChar());
else if ( it instanceof UnicodeCharacter.Range ) {
int from = ((UnicodeCharacter.Range)it).getFrom();
int to = ((UnicodeCharacter.Range)it).getTo();
List<UnicodeDisplayable> list
= new ArrayList<UnicodeDisplayable>(db.countRange(from,to));
for ( UnicodeCharacter ch : db.getRange(from,to) )
list.add(ch);
UnicodeArrayAdapter adapter
= new UnicodeArrayAdapter(UnicodeMapActivity.this,
list);
stack.add(adapter);
positionStack.add(position);
positionYStack.add(view.getTop());
setListAdapter(adapter);
} else
throw new AssertionError("unknown UnicodeDisplayable");
}
public boolean onItemLongClick(AdapterView<?> parent, View view,
int position, long id) {
UnicodeDisplayable it
= (UnicodeDisplayable)parent.getItemAtPosition(position);
if ( it instanceof UnicodeCharacter ) {
UnicodeCharacter itch = (UnicodeCharacter)it;
Dialog dialog = new Dialog(UnicodeMapActivity.this);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
dialog.setContentView(R.layout.char_details);
dialog.setCancelable(true);
TextView text;
text = (TextView) dialog.findViewById(R.id.detailsLabel);
text.setText(itch.getLabel());
text = (TextView) dialog.findViewById(R.id.utf8Label);
StringBuilder s = new StringBuilder();
Formatter fmt = new Formatter(s);
fmt.format("UTF-8:");
byte[] bytes;
bytes = UnicodeCharacter.toUtf8(itch.getChar());
for ( int i=0 ; i<bytes.length ; i++ )
fmt.format(" 0x%02x", bytes[i]);
fmt.format("\nUTF-16BE:");
bytes = UnicodeCharacter.toUtf16(itch.getChar());
for ( int i=0 ; i<bytes.length ; i++ )
fmt.format(" 0x%02x", bytes[i]);
text.setText(new String(s));
dialog.show();
return true;
} else if ( it instanceof UnicodeCharacter.Range ) {
return false;
} else
throw new AssertionError("unknown UnicodeDisplayable");
}
}
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_layout);
db = new UnicodeDatabase(this);
final boolean needPopulate = db.needPopulate();
if ( needPopulate )
launchPopulation();
for ( UnicodeCharacter.Range rng : UnicodeCharacter.Range.values() )
rootList.add(rng);
UnicodeArrayAdapter rootAdapter
= new UnicodeArrayAdapter(this, rootList);
stack.add(rootAdapter);
setListAdapter(rootAdapter);
final ClipboardManager cmgr
= (ClipboardManager)getSystemService(Context.CLIPBOARD_SERVICE);
final Button btn = (Button) findViewById(R.id.button);
textForm = (EditText) findViewById(R.id.edit);
btn.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
cmgr.setText(textForm.getText());
Toast.makeText(getApplicationContext(),
R.string.copied_toast,
Toast.LENGTH_SHORT).show();
}
});
final ListView lv = getListView();
lv.setTextFilterEnabled(true);
MapItemClickListener listener = new MapItemClickListener();
lv.setOnItemClickListener(listener);
lv.setOnItemLongClickListener(listener);
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ( ( keyCode == KeyEvent.KEYCODE_BACK) && stack.size() > 1 ) {
final ListView lv = getListView();
stack.remove(stack.size()-1);
setListAdapter(stack.get(stack.size()-1));
lv.setSelectionFromTop(positionStack.remove(positionStack.size()-1),
positionYStack.remove(positionYStack.size()-1));
return true;
}
return super.onKeyDown(keyCode, event);
}
}
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