X-Git-Url: http://git.rot13.org/?p=zxing.git;a=blobdiff_plain;f=android%2Fsrc%2Fcom%2Fgoogle%2Fzxing%2Fclient%2Fandroid%2Fencode%2FQRCodeEncoder.java;h=ab2e421533069bcaf2b59a459cc81f9835308441;hp=de54e605c41c92072b7b5e887ec10418b2256a02;hb=cce6f2a796765554458e0db234b44056323a10de;hpb=39ad0a4d87d592f3de98101bb05855348c78494e

diff --git a/android/src/com/google/zxing/client/android/encode/QRCodeEncoder.java b/android/src/com/google/zxing/client/android/encode/QRCodeEncoder.java
index de54e605..ab2e4215 100755
--- a/android/src/com/google/zxing/client/android/encode/QRCodeEncoder.java
+++ b/android/src/com/google/zxing/client/android/encode/QRCodeEncoder.java
@@ -17,6 +17,7 @@
 package com.google.zxing.client.android.encode;
 
 import com.google.zxing.BarcodeFormat;
+import com.google.zxing.EncodeHintType;
 import com.google.zxing.MultiFormatWriter;
 import com.google.zxing.Result;
 import com.google.zxing.WriterException;
@@ -34,14 +35,13 @@ import android.graphics.Bitmap;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.Handler;
-import android.os.Message;
 import android.provider.Contacts;
 import android.telephony.PhoneNumberUtils;
 import android.util.Log;
 
-import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.Hashtable;
 
 /**
  * This class does the work of decoding the user's request and extracting all the data
@@ -51,9 +51,10 @@ import java.io.InputStream;
  */
 final class QRCodeEncoder {
 
-  private static final String TAG = "QRCodeEncoder";
+  private static final String TAG = QRCodeEncoder.class.getSimpleName();
 
   private static final int WHITE = 0xFFFFFFFF;
+  private static final int BLACK = 0xFF000000;
 
   private final Activity activity;
   private String contents;
@@ -105,9 +106,15 @@ final class QRCodeEncoder {
   // but we use platform specific code like PhoneNumberUtils, so it can't.
   private boolean encodeContentsFromZXingIntent(Intent intent) {
      // Default to QR_CODE if no format given.
-    String format = intent.getStringExtra(Intents.Encode.FORMAT);
-    if (format == null || format.length() == 0 ||
-        format.equals(Contents.Format.QR_CODE)) {
+    String formatString = intent.getStringExtra(Intents.Encode.FORMAT);
+    try {
+      format = BarcodeFormat.valueOf(formatString);
+    } catch (IllegalArgumentException iae) {
+      // Ignore it then
+      format = null;
+      formatString = null;
+    }
+    if (format == null || BarcodeFormat.QR_CODE.equals(format)) {
       String type = intent.getStringExtra(Intents.Encode.TYPE);
       if (type == null || type.length() == 0) {
         return false;
@@ -120,19 +127,6 @@ final class QRCodeEncoder {
         contents = data;
         displayContents = data;
         title = activity.getString(R.string.contents_text);
-        if (format.equals(Contents.Format.CODE_128)) {
-          this.format = BarcodeFormat.CODE_128;
-        } else if (format.equals(Contents.Format.CODE_39)) {
-          this.format = BarcodeFormat.CODE_39;
-        } else if (format.equals(Contents.Format.EAN_8)) {
-          this.format = BarcodeFormat.EAN_8;
-        } else if (format.equals(Contents.Format.EAN_13)) {
-          this.format = BarcodeFormat.EAN_13;
-        } else if (format.equals(Contents.Format.UPC_A)) {
-          this.format = BarcodeFormat.UPC_A;
-        } else if (format.equals(Contents.Format.UPC_E)) {
-          this.format = BarcodeFormat.UPC_E;
-        }
       }
     }
     return contents != null && contents.length() > 0;
@@ -145,23 +139,34 @@ final class QRCodeEncoder {
       Uri uri = (Uri)intent.getExtras().getParcelable(Intent.EXTRA_STREAM);
       InputStream stream = activity.getContentResolver().openInputStream(uri);
       int length = stream.available();
+      if (length <= 0) {
+        Log.w(TAG, "Content stream is empty");
+        return false;
+      }
       byte[] vcard = new byte[length];
-      stream.read(vcard, 0, length);
-      String vcardString = new String(vcard, "UTF-8");
-      Log.d(TAG, "Encoding share intent content: " + vcardString);
+      int bytesRead = stream.read(vcard, 0, length);
+      if (bytesRead < length) {
+        Log.w(TAG, "Unable to fully read available bytes from content stream");
+        return false;
+      }
+      String vcardString = new String(vcard, 0, bytesRead, "UTF-8");
+      Log.d(TAG, "Encoding share intent content:");
+      Log.d(TAG, vcardString);
       Result result = new Result(vcardString, vcard, null, BarcodeFormat.QR_CODE);
       ParsedResult parsedResult = ResultParser.parseResult(result);
       if (!(parsedResult instanceof AddressBookParsedResult)) {
+        Log.d(TAG, "Result was not an address");
         return false;
       }
       if (!encodeQRCodeContents((AddressBookParsedResult) parsedResult)) {
+        Log.d(TAG, "Unable to encode contents");
         return false;
       }
-    } catch (FileNotFoundException e) {
-      return false;
     } catch (IOException e) {
+      Log.w(TAG, e);
       return false;
     } catch (NullPointerException e) {
+      Log.w(TAG, e);
       // In case the uri was not found in the Intent.
       return false;
     }
@@ -264,17 +269,16 @@ final class QRCodeEncoder {
     }
     String[] addresses = contact.getAddresses();
     if (addresses != null) {
-      for (int x = 0; x < addresses.length; x++) {
-        if (addresses[x] != null && addresses[x].length() > 0) {
-          newContents.append("ADR:").append(addresses[x]).append(';');
-          newDisplayContents.append('\n').append(addresses[x]);
+      for (String address : addresses) {
+        if (address != null && address.length() > 0) {
+          newContents.append("ADR:").append(address).append(';');
+          newDisplayContents.append('\n').append(address);
         }
       }
     }
     String[] phoneNumbers = contact.getPhoneNumbers();
     if (phoneNumbers != null) {
-      for (int x = 0; x < phoneNumbers.length; x++) {
-        String phone = phoneNumbers[x];
+      for (String phone : phoneNumbers) {
         if (phone != null && phone.length() > 0) {
           newContents.append("TEL:").append(phone).append(';');
           newDisplayContents.append('\n').append(PhoneNumberUtils.formatNumber(phone));
@@ -283,8 +287,7 @@ final class QRCodeEncoder {
     }
     String[] emails = contact.getEmails();
     if (emails != null) {
-      for (int x = 0; x < emails.length; x++) {
-        String email = emails[x];
+      for (String email : emails) {
         if (email != null && email.length() > 0) {
           newContents.append("EMAIL:").append(email).append(';');
           newDisplayContents.append('\n').append(email);
@@ -310,54 +313,41 @@ final class QRCodeEncoder {
     }
   }
 
-  private static final class EncodeThread extends Thread {
-    private static final String TAG = "EncodeThread";
-
-    private final String contents;
-    private final Handler handler;
-    private final int pixelResolution;
-    private final BarcodeFormat format;
-
-    EncodeThread(String contents, Handler handler, int pixelResolution,
-        BarcodeFormat format) {
-      this.contents = contents;
-      this.handler = handler;
-      this.pixelResolution = pixelResolution;
-      this.format = format;
+  static Bitmap encodeAsBitmap(String contents,
+                               BarcodeFormat format,
+                               int desiredWidth,
+                               int desiredHeight) throws WriterException {
+    Hashtable hints = null;
+    String encoding = guessAppropriateEncoding(contents);
+    if (encoding != null) {
+      hints = new Hashtable(2);
+      hints.put(EncodeHintType.CHARACTER_SET, encoding);
+    }
+    MultiFormatWriter writer = new MultiFormatWriter();    
+    BitMatrix result = writer.encode(contents, format, desiredWidth, desiredHeight, hints);
+    int width = result.getWidth();
+    int height = result.getHeight();
+    int[] pixels = new int[width * height];
+    // All are 0, or black, by default
+    for (int y = 0; y < height; y++) {
+      int offset = y * width;
+      for (int x = 0; x < width; x++) {
+        pixels[offset + x] = result.get(x, y) ? BLACK : WHITE;
+      }
     }
 
-    @Override
-    public void run() {
-      try {
-        BitMatrix result = new MultiFormatWriter().encode(contents, format,
-            pixelResolution, pixelResolution);
-        int width = result.getWidth();
-        int height = result.getHeight();
-        int[] pixels = new int[width * height];
-        // All are 0, or black, by default
-        for (int y = 0; y < height; y++) {
-          int offset = y * width;
-          for (int x = 0; x < width; x++) {
-            if (!result.get(x, y)) {
-              pixels[offset + x] = WHITE;
-            }
-          }
-        }
+    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
+    bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
+    return bitmap;
+  }
 
-        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
-        bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
-        Message message = Message.obtain(handler, R.id.encode_succeeded);
-        message.obj = bitmap;
-        message.sendToTarget();
-      } catch (WriterException e) {
-        Log.e(TAG, e.toString());
-        Message message = Message.obtain(handler, R.id.encode_failed);
-        message.sendToTarget();
-      } catch (IllegalArgumentException e) {
-        Log.e(TAG, e.toString());
-        Message message = Message.obtain(handler, R.id.encode_failed);
-        message.sendToTarget();
+  private static String guessAppropriateEncoding(CharSequence contents) {
+    // Very crude at the moment
+    for (int i = 0; i < contents.length(); i++) {
+      if (contents.charAt(i) > 0xFF) {
+        return "UTF-8";
       }
     }
+    return null;
   }
 }