Show character details on long click.

2 files changed, 103 insertions, 27 deletions

diff --git a/src/org/madore/android/unicodeMap/UnicodeCharacter.java b/src/org/madore/android/unicodeMap/UnicodeCharacter.java
index 34bab47..646c696 100644
--- a/src/org/madore/android/unicodeMap/UnicodeCharacter.java
+++ b/src/org/madore/android/unicodeMap/UnicodeCharacter.java
@@ -6,6 +6,10 @@ import java.util.Map;
 import java.util.EnumSet;
 import java.util.HashMap;
 import java.util.Formatter;
+import java.io.ByteArrayOutputStream;
+import java.io.OutputStreamWriter;
+import java.io.UnsupportedEncodingException;
+import java.io.IOException;
 
 public class UnicodeCharacter implements UnicodeDisplayable {
 
@@ -320,4 +324,32 @@ public class UnicodeCharacter implements UnicodeDisplayable {
 	return this.getLabel();
     }
 
+    static byte[] toUtf8(String s) {
+	try {
+	    ByteArrayOutputStream buf = new ByteArrayOutputStream(8);
+	    OutputStreamWriter writer = new OutputStreamWriter(buf, "UTF-8");
+	    writer.write(s, 0, s.length());
+	    writer.close();
+	    return buf.toByteArray();
+	} catch (UnsupportedEncodingException e) {
+	    throw new AssertionError("UTF-8 encoding unsupported");
+	} catch (IOException e) {
+	    throw new AssertionError("this is impossible");
+	}
+    }
+
+    static byte[] toUtf16(String s) {
+	try {
+	    ByteArrayOutputStream buf = new ByteArrayOutputStream(8);
+	    OutputStreamWriter writer = new OutputStreamWriter(buf, "UTF-16BE");
+	    writer.write(s, 0, s.length());
+	    writer.close();
+	    return buf.toByteArray();
+	} catch (UnsupportedEncodingException e) {
+	    throw new AssertionError("UTF-16BE encoding unsupported");
+	} catch (IOException e) {
+	    throw new AssertionError("this is impossible");
+	}
+    }
+
 }
diff --git a/src/org/madore/android/unicodeMap/UnicodeMapActivity.java b/src/org/madore/android/unicodeMap/UnicodeMapActivity.java
index c352b58..2d8d61b 100644
--- a/src/org/madore/android/unicodeMap/UnicodeMapActivity.java
+++ b/src/org/madore/android/unicodeMap/UnicodeMapActivity.java
@@ -3,16 +3,19 @@ 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 {
@@ -29,6 +32,8 @@ public final class UnicodeMapActivity extends ListActivity {
     protected final List<Integer> positionYStack
 	= new ArrayList<Integer>(10);
 
+    EditText textForm;
+
     protected void launchPopulation() {
 	final ProgressDialog progress = new ProgressDialog(this);
 	progress.setOwnerActivity(this);
@@ -57,6 +62,67 @@ public final class UnicodeMapActivity extends ListActivity {
 	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) {
@@ -75,10 +141,10 @@ public final class UnicodeMapActivity extends ListActivity {
 	final ClipboardManager cmgr
 	    = (ClipboardManager)getSystemService(Context.CLIPBOARD_SERVICE);
 	final Button btn = (Button) findViewById(R.id.button);
-	final EditText txt = (EditText) findViewById(R.id.edit);
+	textForm = (EditText) findViewById(R.id.edit);
 	btn.setOnClickListener(new View.OnClickListener() {
 		public void onClick(View view) {
-		    cmgr.setText(txt.getText());
+		    cmgr.setText(textForm.getText());
 		    Toast.makeText(getApplicationContext(),
 				   R.string.copied_toast,
 				   Toast.LENGTH_SHORT).show();
@@ -86,31 +152,9 @@ public final class UnicodeMapActivity extends ListActivity {
 	    });
 	final ListView lv = getListView();
 	lv.setTextFilterEnabled(true);
-	lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
-		public void onItemClick(AdapterView<?> parent, View view,
-					int position, long id) {
-		    UnicodeDisplayable it
-			= (UnicodeDisplayable)parent.getItemAtPosition(position);
-		    if ( it instanceof UnicodeCharacter )
-			txt.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");
-		}
-	    });
+	MapItemClickListener listener = new MapItemClickListener();
+	lv.setOnItemClickListener(listener);
+	lv.setOnItemLongClickListener(listener);
     }
 
     @Override