Fix shortcut images being too large.

We were hitting the transaction limit size. This change scales down
shortcut icons to be at most 300x300, which comes out to ~360kb, which
should be safely under the limit of 1mb.

Fixes #8139

src/org/thoughtcrime/securesms/ConversationActivity.java

@@ -26,6 +26,7 @@ import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.res.Configuration;
 import android.content.res.TypedArray;
+import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.graphics.Color;
 import android.graphics.PorterDuff.Mode;
@@ -156,6 +157,7 @@ import org.thoughtcrime.securesms.sms.MessageSender;
 import org.thoughtcrime.securesms.sms.OutgoingEncryptedMessage;
 import org.thoughtcrime.securesms.sms.OutgoingEndSessionMessage;
 import org.thoughtcrime.securesms.sms.OutgoingTextMessage;
+import org.thoughtcrime.securesms.util.BitmapUtil;
 import org.thoughtcrime.securesms.util.CharacterCalculator.CharacterState;
 import org.thoughtcrime.securesms.util.CommunicationActions;
 import org.thoughtcrime.securesms.util.Dialogs;
@@ -796,7 +798,9 @@ public class ConversationActivity extends PassphraseRequiredActionBarActivity
 
         if (recipient.getContactPhoto() != null) {
           try {
-            icon = IconCompat.createWithAdaptiveBitmap(BitmapFactory.decodeStream(recipient.getContactPhoto().openInputStream(context)));
+            Bitmap bitmap = BitmapFactory.decodeStream(recipient.getContactPhoto().openInputStream(context));
+            bitmap = BitmapUtil.createScaledBitmap(bitmap, 300, 300);
+            icon   = IconCompat.createWithAdaptiveBitmap(bitmap);
           } catch (IOException e) {
             Log.w(TAG, "Failed to decode contact photo during shortcut creation. Falling back to generic icon.", e);
           }

src/org/thoughtcrime/securesms/util/BitmapUtil.java

@@ -130,6 +130,31 @@ public class BitmapUtil {
     }
   }
 
+  @WorkerThread
+  public static Bitmap createScaledBitmap(Bitmap bitmap, int maxWidth, int maxHeight) {
+    if (bitmap.getWidth() <= maxWidth && bitmap.getHeight() <= maxHeight) {
+      return bitmap;
+    }
+
+    if (maxWidth <= 0 || maxHeight <= 0) {
+      return bitmap;
+    }
+
+    int newWidth  = maxWidth;
+    int newHeight = maxHeight;
+
+    float widthRatio  = bitmap.getWidth()  / (float) maxWidth;
+    float heightRatio = bitmap.getHeight() / (float) maxHeight;
+
+    if (widthRatio > heightRatio) {
+      newHeight = (int) (bitmap.getHeight() / widthRatio);
+    } else {
+      newWidth = (int) (bitmap.getWidth() / heightRatio);
+    }
+
+    return Bitmap.createScaledBitmap(bitmap, newWidth, newHeight, true);
+  }
+
   private static BitmapFactory.Options getImageDimensions(InputStream inputStream)
       throws BitmapDecodingException
   {