From 1c6eb70f0640269304041982f7514df92b047776 Mon Sep 17 00:00:00 2001
From: "David A. Madore" <david+git@madore.org>
Date: Sat, 1 May 2010 23:14:07 +0200
Subject: New feature: decode Unicode character string.

---
 .../android/unicodeMap/UnicodeMapActivity.java     | 90 ++++++++++++++++++++++
 1 file changed, 90 insertions(+)

(limited to 'src/org/madore/android/unicodeMap/UnicodeMapActivity.java')

diff --git a/src/org/madore/android/unicodeMap/UnicodeMapActivity.java b/src/org/madore/android/unicodeMap/UnicodeMapActivity.java
index 8e93e36..01f5fdb 100644
--- a/src/org/madore/android/unicodeMap/UnicodeMapActivity.java
+++ b/src/org/madore/android/unicodeMap/UnicodeMapActivity.java
@@ -75,6 +75,14 @@ public final class UnicodeMapActivity extends ListActivity {
 	public int getLimit() { return this.limit; }
 	public int getSizeHint() { return this.sizeHint; }
     }
+    protected static class DecodeDisplay extends Display {
+	protected String coded;
+	public DecodeDisplay(String title, String coded) {
+	    super(title);
+	    this.coded = coded;
+	}
+	public String getCoded() { return this.coded; }
+    }
 
     protected static class DisplayAndPosition {
 	protected Display disp;
@@ -227,6 +235,42 @@ public final class UnicodeMapActivity extends ListActivity {
 			       String.format(str, limit),
 			       Toast.LENGTH_SHORT).show();
 	    }
+	} else if ( disp instanceof DecodeDisplay ) {
+	    String coded = ((DecodeDisplay)disp).getCoded();
+	    list = new ArrayList<UnicodeDisplayable>(coded.length());
+	    for ( int i=0 ; i<coded.length() ; i++ ) {
+		int codePoint = coded.codePointAt(i);
+		if ( codePoint >= 0x10000 )
+		    i++;
+		UnicodeCharacter ch = db.getSingle(codePoint);
+		if ( ch == null ) {
+		    String name;  UnicodeCharacter.Category category;
+		    if ( codePoint < 0x0020 || ( codePoint >= 0x007f
+						 && codePoint < 0x00a0 ) ) {
+			name = String.format("<control-%04X>", codePoint);
+			category = UnicodeCharacter.Category.CONTROL;
+		    } else if ( UnicodeCharacter.Range.HIGH_SURROGATES.belongs(codePoint)
+				|| UnicodeCharacter.Range.HIGH_PRIVATE_USE_SURROGATES.belongs(codePoint)
+				|| UnicodeCharacter.Range.LOW_SURROGATES.belongs(codePoint) ) {
+			name = String.format("<surrogate-%04X>", codePoint);
+			category = UnicodeCharacter.Category.SURROGATE;
+		    } else if ( UnicodeCharacter.Range.PRIVATE_USE_AREA.belongs(codePoint)
+				|| UnicodeCharacter.Range.SUPPLEMENTARY_PRIVATE_USE_AREA_A.belongs(codePoint)
+				|| UnicodeCharacter.Range.SUPPLEMENTARY_PRIVATE_USE_AREA_B.belongs(codePoint) ) {
+			name = String.format("<private-use-%04X>", codePoint);
+			category = UnicodeCharacter.Category.PRIVATE_USE;
+		    } else {
+			name = String.format("<noncharacter-%04X>", codePoint);
+			category = UnicodeCharacter.Category.UNASSIGNED;
+		    }
+		    ch = new UnicodeCharacter(codePoint, name, category,
+					      false);
+		}
+		list.add(ch);
+	    }
+	    disp.setListCache(list);
+	    adapter = new UnicodeArrayAdapter(this, list);
+	    setListAdapter(adapter);
 	} else
 	    throw new AssertionError("unknown UnicodeMapActivity.Display");
 	String title = disp.getTitle();
@@ -499,6 +543,49 @@ public final class UnicodeMapActivity extends ListActivity {
 	dialog.show();
     }
 
+    protected void doDecode(String s) {
+	Display newDisp = new DecodeDisplay(s, s);
+	saveDisplay();
+	doDisplay(newDisp, true);
+    }
+
+    protected void queryDecode() {
+	final Dialog dialog = new Dialog(UnicodeMapActivity.this);
+	// dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
+	dialog.setTitle(R.string.decode_title);
+	dialog.setOwnerActivity(this);
+	dialog.setContentView(R.layout.decode_dialog);
+	dialog.setCancelable(true);
+	dialog.getWindow().setLayout(ViewGroup.LayoutParams.FILL_PARENT,
+				     ViewGroup.LayoutParams.WRAP_CONTENT);
+	final EditText textForm
+	    = (EditText) dialog.findViewById(R.id.decodeString);
+	textForm.setOnKeyListener(new View.OnKeyListener() {
+		public boolean onKey(View view, int keyCode, KeyEvent event) {
+		    if ( ( event.getAction() == KeyEvent.ACTION_DOWN )
+			 && ( keyCode == KeyEvent.KEYCODE_ENTER ) ) {
+			String s = textForm.getText().toString();
+			if ( ! Pattern.matches("^\\s*$", s) ) {
+			    doDecode(s);
+			    dialog.dismiss();
+			}
+			return true;
+		    }
+		    return false;
+		}
+	    });
+	final Button btn = (Button) dialog.findViewById(R.id.decodeButton);
+	btn.setOnClickListener(new View.OnClickListener() {
+		public void onClick(View view) {
+		    String s = textForm.getText().toString();
+		    if ( ! Pattern.matches("^\\s*$", s) )
+			doDecode(s);
+		    dialog.dismiss();
+		}
+	    });
+	dialog.show();
+    }
+
     protected void displayAbout() {
 	final Dialog dialog = new Dialog(UnicodeMapActivity.this);
 	dialog.setTitle(R.string.about_title);
@@ -548,6 +635,9 @@ public final class UnicodeMapActivity extends ListActivity {
 	case R.id.menuSearch:
 	    querySearch();
 	    return true;
+	case R.id.menuDecode:
+	    queryDecode();
+	    return true;
 	case R.id.menuAbout:
 	    displayAbout();
 	    return true;
-- 
cgit v1.2.3