Moved version from Label to LabelCollection

app/src/main/java/om/sstvencoder/TextOverlay/Label.java

@@ -20,7 +20,6 @@ import android.graphics.Color;
 import java.io.Serializable;
 
 public class Label implements Serializable {
-    private final static int mVersion = 1;
     private String mText;
     private float mTextSize;
     private String mFamilyName;
@@ -37,10 +36,6 @@ public class Label implements Serializable {
         mBackColor = Color.TRANSPARENT;
     }
 
-    public int getVersion() {
-        return mVersion;
-    }
-
     public String getText() {
         return mText;
     }

app/src/main/java/om/sstvencoder/TextOverlay/LabelCollection.java

@@ -41,6 +41,7 @@ public class LabelCollection {
         }
     }
 
+    private final int mVersion;
     private final List<LabelContainer> mLabels;
     private Size mScreenSize;
     private float mTextSizeFactor;
@@ -48,6 +49,7 @@ public class LabelCollection {
     private float mPreviousX, mPreviousY;
 
     public LabelCollection() {
+        mVersion = 1;
         mLabels = new LinkedList<>();
         mPreviousX = 0f;
         mPreviousY = 0f;
@@ -145,6 +147,7 @@ public class LabelCollection {
     public void write(@NonNull IWriter writer) throws IOException {
         writer.beginRootObject();
         {
+            writer.write("version", mVersion);
             writer.write("width", mScreenSize.width());
             writer.write("height", mScreenSize.height());
             writer.write("factor", mTextSizeFactor);
@@ -158,9 +161,12 @@ public class LabelCollection {
         writer.endObject();
     }
 
-    public void read(@NonNull IReader reader) throws IOException {
+    public boolean read(@NonNull IReader reader) throws IOException {
         reader.beginRootObject();
         {
+            if (reader.readInt() != mVersion)
+                return false;
+
             float w = reader.readFloat();
             float h = reader.readFloat();
             float textSizeFactor = reader.readFloat();
@@ -176,5 +182,6 @@ public class LabelCollection {
             update(w, h, textSizeFactor);
         }
         reader.endObject();
+        return true;
     }
 }

app/src/main/java/om/sstvencoder/TextOverlay/LabelContainer.java

@@ -97,7 +97,6 @@ class LabelContainer {
     }
 
     private void writeLabel(IWriter writer, Label label) throws IOException {
-        writer.write("version", label.getVersion());
         writer.write("text", label.getText());
         writer.write("text_size", label.getTextSize());
         writer.write("family_name", label.getFamilyName());
@@ -108,7 +107,6 @@ class LabelContainer {
     }
 
     private void readLabel(IReader reader, Label label) throws IOException {
-        reader.readInt();
         label.setText(reader.readString());
         label.setTextSize(reader.readFloat());
         label.setFamilyName(reader.readString());

app/src/main/java/om/sstvencoder/TextOverlayTemplate.java

@@ -163,8 +163,7 @@ class TextOverlayTemplate {
         try {
             InputStream in = new FileInputStream(file);
             jsonReader = new JsonReader(new InputStreamReader(in, "UTF-8"));
-            labels.read(new LabelCollectionReader(jsonReader));
-            loaded = true;
+            loaded = labels.read(new LabelCollectionReader(jsonReader));
         } catch (Exception ignore) {
         } finally {
             if (jsonReader != null) {