Porting some useful functions: GetBoxText, GetHOCRText, SetInputName,…

… SetOutputName, ReadConfigFile

tess-two/jni/com_googlecode_tesseract_android/pageiterator.cpp

@@ -41,6 +41,29 @@ jboolean Java_com_googlecode_tesseract_android_PageIterator_nativeNext(JNIEnv *e
   return pageIterator->Next(enumLevel) ? JNI_TRUE : JNI_FALSE;
 }
 
+jintArray Java_com_googlecode_tesseract_android_PageIterator_nativeBoundingBox(JNIEnv *env, jclass clazz,
+    jint nativePageIterator, jint level) {
+  int size = 4;
+  jintArray result = env->NewIntArray(size);
+
+  LOG_ASSERT((result != NULL), "Could not create Java confidence array!");
+
+  PageIterator *pageIterator = (PageIterator *) nativePageIterator;
+  PageIteratorLevel enumLevel = (PageIteratorLevel) level;
+  int x1, y1, x2, y2;
+  pageIterator->BoundingBox(enumLevel, &x1, &y1, &x2, &y2);
+
+  // fill a temp structure to use to populate the java int array
+  jint fill[6];
+  fill[0] = x1;
+  fill[1] = y1;
+  fill[2] = x2;
+  fill[3] = y2;
+
+  env->SetIntArrayRegion(result, 0, size, fill);
+ return result;
+}
+
 #ifdef __cplusplus
 }
 #endif  /* __cplusplus */

tess-two/jni/com_googlecode_tesseract_android/tessbaseapi.cpp

@@ -422,6 +422,60 @@ jint Java_com_googlecode_tesseract_android_TessBaseAPI_nativeGetResultIterator(J
   return (jint) nat->api.GetIterator();
 }
 
+jstring Java_com_googlecode_tesseract_android_TessBaseAPI_nativeGetHOCRText(JNIEnv *env,
+                                                                            jobject thiz, jint page) {
+
+  native_data_t *nat = get_native_data(env, thiz);
+
+  char *text = nat->api.GetHOCRText(page);
+
+  jstring result = env->NewStringUTF(text);
+
+  free(text);
+
+  return result;
+}
+
+jstring Java_com_googlecode_tesseract_android_TessBaseAPI_nativeGetBoxText(JNIEnv *env,
+                                                                            jobject thiz, jint page) {
+
+  native_data_t *nat = get_native_data(env, thiz);
+
+  char *text = nat->api.GetBoxText(page);
+
+  jstring result = env->NewStringUTF(text);
+
+  free(text);
+
+  return result;
+}
+
+void Java_com_googlecode_tesseract_android_TessBaseAPI_nativeSetInputName(JNIEnv *env,
+                                                                             jobject thiz,
+                                                                             jstring name) {  
+  native_data_t *nat = get_native_data(env, thiz);
+  const char *c_name = env->GetStringUTFChars(name, NULL);
+  nat->api.SetInputName(c_name);
+  env->ReleaseStringUTFChars(name, c_name);
+} 
+
+void Java_com_googlecode_tesseract_android_TessBaseAPI_nativeSetOutputName(JNIEnv *env,
+                                                                             jobject thiz,
+                                                                             jstring name) {
+  native_data_t *nat = get_native_data(env, thiz);
+  const char *c_name = env->GetStringUTFChars(name, NULL);
+  nat->api.SetOutputName(c_name);
+  env->ReleaseStringUTFChars(name, c_name);
+} 
+
+void Java_com_googlecode_tesseract_android_TessBaseAPI_nativeReadConfigFile(JNIEnv *env,
+                                                                             jobject thiz,
+                                                                             jstring fileName) {
+  native_data_t *nat = get_native_data(env, thiz);
+  const char *c_file_name = env->GetStringUTFChars(fileName, NULL);
+  nat->api.ReadConfigFile(c_file_name);
+  env->ReleaseStringUTFChars(fileName, c_file_name);
+} 
 #ifdef __cplusplus
 }
 #endif

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

@@ -60,6 +60,16 @@ public boolean next(int level) {
         return nativeNext(mNativePageIterator, level);
     }
 
+    /**
+     * get bounding box x,y,w,h
+     * @param level
+     * @return
+     */
+    public int[] getBoundingBox(int level){
+    	return nativeBoundingBox(mNativePageIterator, level);
+    }
+
     private static native void nativeBegin(int nativeIterator);
     private static native boolean nativeNext(int nativeIterator, int level);
+    private static native int[] nativeBoundingBox(int nativeIterator, int level);
 }

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

@@ -486,6 +486,56 @@ public ResultIterator getResultIterator() {
         return new ResultIterator(nativeResultIterator);
     }
 
+	/**
+	 * 
+	 * Make a HTML-formatted string with hOCR markup from the internal data
+	 * structures.  
+	 * GetHOCRText STL removed from original patch submission and refactored by
+	 * rays.
+	 * <b>Warning</b> make sure call {@link #setInputName} before this method
+	 * @param page is 0-based but will appear in the output as 1-based. 
+	 * @return HTML-formatted string with hOCR markup
+	 */
+    public String getHOCRText(int page){
+    	return nativeGetHOCRText(page);
+    }
+
+    /**
+     * Set the name of the input file. Needed only for training and
+     * loading a UNLV zone file.
+     *  @param name input file name
+     */
+    public void setInputName(String name){
+    	nativeSetInputName(name);
+    } 
+
+    /** Set the name of the output files. 
+     * Needed only for debugging. 
+     * @param name output file name
+     */
+    public void setOutputName(String name){
+    	nativeSetOutputName(name);
+    } 
+
+    /**
+     * Read a "config" file containing a set of parameter name, value pairs.
+     * Searches the standard places: <i>tessdata/configs, tessdata/tessconfigs</i>
+     * and also accepts a relative or absolute path name.
+     * @param filename the configuration file name, without path, should be place in <b>tessdata/configs, tessdata/tessconfigs</b>
+     */
+    public void ReadConfigFile(String filename){
+    	nativeReadConfigFile(filename);
+    }
+
+    /**
+     * The recognized text is returned which is coded
+     * as a UTF8 box file.
+     * @param page is a 0-base page index that will appear in the box file.
+     */
+    public String getBoxText(int page){
+    	return nativeGetBoxText(page);
+    }
+
     // ******************
     // * Native methods *
     // ******************
@@ -543,4 +593,14 @@ private native void nativeSetImageBytes(
     private native int nativeGetWords();
 
     private native int nativeGetResultIterator();
+
+    private native String nativeGetBoxText(int page_number);
+
+    private native String nativeGetHOCRText(int page_number);
+
+    private native void nativeSetInputName(String name);
+
+    private native void nativeSetOutputName(String name);
+
+    private native void nativeReadConfigFile(String fileName);
 }