ResultIterator can't return choices with custom level (closes #119)

ChoicesIterator always return only list of alternatives of symbol, it doesn't let us specify different PageIteratorLevel here. So this commit removes the method parameter and renames the whole method to make more sense.

tess-two-test/src/com/googlecode/tesseract/android/test/TessBaseAPITest.java

@@ -112,7 +112,7 @@ public void testChoiceIterator() {
         List<Pair<String, Double>> choicesAndConfidences;
         iterator.begin();
         do {
-            choicesAndConfidences = iterator.getChoicesAndConfidence(PageIteratorLevel.RIL_SYMBOL);
+            choicesAndConfidences = iterator.getSymbolChoicesAndConfidence();
             assertNotNull("Invalid result.", choicesAndConfidences);
 
             for (Pair<String, Double> choiceAndConfidence : choicesAndConfidences) {

tess-two/jni/com_googlecode_tesseract_android/resultiterator.cpp

@@ -48,21 +48,20 @@ jfloat Java_com_googlecode_tesseract_android_ResultIterator_nativeConfidence(JNI
   return (jfloat) resultIterator->Confidence(enumLevel);
 }
 
-jobjectArray Java_com_googlecode_tesseract_android_ResultIterator_nativeGetChoices(JNIEnv *env,
-    jobject thiz, jlong nativeResultIterator, jint level) {
+jobjectArray Java_com_googlecode_tesseract_android_ResultIterator_nativeGetSymbolChoices(JNIEnv *env,
+    jobject thiz, jlong nativeResultIterator) {
 
-  // Get the actual result iterator and level (as C objects)
-  PageIteratorLevel enumLevel = (PageIteratorLevel) level;
+  // Get the actual result iterator (as C object)
   ResultIterator *resultIterator = (ResultIterator *) nativeResultIterator;
 
-  // Create a choice iterator to determine to the number of alternatives
+  // Create a choice iterator to determine the number of alternatives
   tesseract::ChoiceIterator ci(*resultIterator);
   int numberOfAlternatives = 0;
   do {
     numberOfAlternatives++;
   } while (ci.Next());
 
-  // Create a string array to hold the results
+  // Create a string array to hold the choices
   jobjectArray ret = (jobjectArray) env->NewObjectArray(numberOfAlternatives, env->FindClass("java/lang/String"), env->NewStringUTF(""));
 
   // Save each result to the output array

tess-two/src/com/googlecode/tesseract/android/ResultIterator.java

@@ -76,12 +76,11 @@ public float confidence(int level) {
      * The default matching text is blank (""). 
      * The default confidence level is zero (0.0) 
      *
-     * @param level the page iterator level. See {@link PageIteratorLevel}.
-     * @return A list of pairs with the UTF string and the confidence
+     * @return A list of pairs with the UTF symbol and the confidence
      */
-    public List<Pair<String, Double>> getChoicesAndConfidence(int level) {
+    public List<Pair<String, Double>> getSymbolChoicesAndConfidence() {
         // Get the native choices
-        String[] nativeChoices = nativeGetChoices(mNativeResultIterator, level);
+        String[] nativeChoices = nativeGetSymbolChoices(mNativeResultIterator);
 
         // Create the output list
         ArrayList<Pair<String, Double>> pairedResults = new ArrayList<Pair<String, Double>>();
@@ -121,7 +120,7 @@ public void delete() {
         nativeDelete(mNativeResultIterator);
     }
 
-    private static native String[] nativeGetChoices(long nativeResultIterator, int level);
+    private static native String[] nativeGetSymbolChoices(long nativeResultIterator);
 
     private static native String nativeGetUTF8Text(long nativeResultIterator, int level);
     private static native float nativeConfidence(long nativeResultIterator, int level);