working on linux portability

build.gradle

@@ -73,7 +73,7 @@ dependencies {
     compile group: 'com.google.guava', name: 'guava', version: '23.3-jre'
     compile group: 'org.apache.commons', name: 'commons-io', version: '1.3.2'
 
-    // Tesseract - OCR
+    // Tesseract - ocr
     compile group: 'org.bytedeco.javacpp-presets', name: 'tesseract', version: '3.04.01-1.3'
     compile group: 'org.bytedeco.javacpp-presets', name: 'tesseract', version: '3.04.01-1.3', classifier: opencvBinaryClassifer
     compile group: 'org.bytedeco.javacpp-presets', name: 'leptonica', version: '1.73-1.3', classifier: opencvBinaryClassifer
@@ -89,11 +89,13 @@ test {
     testLogging.showStandardStreams = true
 }
 
-jfx {
+jfx{
+    verbose = true
+    appName = "VideoText Extractor"
     mainClass = 'Main'
-    vendor = 'arxa'
-    bundler = 'windows.app'
-    bundleArguments = [
-            'runtime': 'C:\\Program Files\\Java\\jdk1.8.0_144\\jre'
-    ]
+    vendor = 'Nikiforos Archakis'
+    //bundler = 'windows.app'
+//    bundleArguments = [
+//            'runtime': 'C:\\Program Files\\Java\\jdk1.8.0_144\\jre'
+//    ]
 }

src/main/java/controllers/MainController.java

@@ -2,8 +2,10 @@
 
 import entities.ApplicationPaths;
 import entities.Controllers;
-import entities.OutputFolderNames;
 import javafx.application.Platform;
+import javafx.scene.control.Button;
+import javafx.scene.control.MenuItem;
+import javafx.scene.control.TextArea;
 import processors.FileProcessor;
 import processors.Player;
 import processors.VideoProcessor;
@@ -22,12 +24,16 @@
 import javafx.scene.text.FontWeight;
 import javafx.stage.Stage;
 import org.apache.commons.io.FilenameUtils;
+
+import java.awt.*;
 import java.io.File;
 import java.io.IOException;
 import java.nio.file.Paths;
 import java.util.Timer;
 import java.util.TimerTask;
 
+import static java.awt.Desktop.getDesktop;
+
 public class MainController
 {
     public Pane videoPane;
@@ -47,7 +53,7 @@ public class MainController
     public Button decreaseFont_button;
     public MenuItem outputImagesMenuItem;
 
-    private static File currentVideoFile;
+    private static File currentVideoFile = new File("nofile");
     private static Stage mainStage;
 
     public void initialize()
@@ -60,10 +66,15 @@ public void initialize()
         processButton.setCursor(Cursor.HAND);
 
         outputImagesMenuItem.setOnAction(event -> {
-            try {
-                Runtime.getRuntime().exec("explorer.exe " + ApplicationPaths.RESOURCES_OUTPUTS);
-            } catch (IOException e) {
-                MainController.showError("Failed to open file explorer; "+e.getMessage());
+            if( Desktop.isDesktopSupported() )
+            {
+                new Thread(() -> {
+                    try {
+                        Desktop.getDesktop().open(new File(ApplicationPaths.RESOURCES_OUTPUTS));
+                    } catch (IOException e) {
+                        showException(e);
+                    }
+                }).start();
             }
         });
 
@@ -143,6 +154,8 @@ public void initialize()
         closeVideo.setOnAction(event -> {
             VideoProcessor.checkThreadStatus();
             Player.stopMediaPlayer();
+            ApplicationPaths.UNIQUE_OUTPUT_FOLDER_NAME = "";
+            setCurrentVideoFile(new File("nofile"));
             videoPane.getChildren().clear();
             videoPane.getChildren().add(videoIcon);
             videoIcon.setVisible(true);
@@ -203,7 +216,7 @@ public void run() {
     }
 
     /**
-     * Initializes FXML loaders and controllers of other Views
+     * Initializes FXML loaders and controllers of other views
      */
     public void initializeViews(){
         try {

src/main/java/controllers/SettingsController.java

@@ -46,11 +46,11 @@ public void initialize() throws IOException
 
         moreLanguagesLabel.addEventHandler(MouseEvent.MOUSE_CLICKED, event -> {
             // Showing an alert with a clickable hyperlink inside
-            Alert alert = new Alert(Alert.AlertType.INFORMATION, "Download the .traineddata language files(s) you wish to add from the following link and place the file(s) project's directory: src\\main\\resources\\OCR\\tessdata");
+            Alert alert = new Alert(Alert.AlertType.INFORMATION, "Download the .traineddata language files(s) you wish to add from the following link and place the file(s) project's directory: src\\main\\resources\\ocr\\tessdata");
             alert.setTitle("How to add more languages");
             FlowPane fp = new FlowPane();
             Label lbl = new Label("Download the .traineddata language files(s) you wish to add from the following link \n" +
-                    "and place the file(s) in the project's directory: OCR\\tessdata \n" +
+                    "and place the file(s) in the project's directory: ocr\\tessdata \n" +
                     "Restart the application and you should see the new language options in Tools->Settings");
             Hyperlink link = new Hyperlink("https://github.com/tesseract-ocr/tessdata/tree/3.04.00");
             link.addEventHandler(MouseEvent.MOUSE_CLICKED, event1 -> {
@@ -76,15 +76,15 @@ public void initialize() throws IOException
             languageMap.put(tokens[1],tokens[0]);
         }
 
-        // Check which traineddata files exist in the tessdata directory and make that language(s) available to the OCR languages combobox.
+        // Check which traineddata files exist in the tessdata directory and make that language(s) available to the ocr languages combobox.
         Collection files = FileUtils.listFiles(new File(ApplicationPaths.RESOURCES_OCR_TESSDATA), null, false);
         for(Object f : files){
             if (languageMap.values().contains(((File)f).getName().split("\\.")[0])){
                 ocrLanguage_combobox.getItems().add(getKeyByValue(languageMap,((File)f).getName().split("\\.")[0]));
             }
         }
 
-        // Set default OCR language selection to English
+        // Set default ocr language selection to English
         ocrLanguage_combobox.getSelectionModel().select("English");
 
         // Saves the characters that are being typed in the checkbox's list and jumps you to the matching language

src/main/java/entities/ApplicationPaths.java

@@ -17,7 +17,7 @@ public class ApplicationPaths
     public static String RESOURCES_MODELS;
     public static String RESOURCES_ICONS;
     public static String RESOURCES_CSS;
-    public static String UNIQUE_OUTPUT_FOLDER_NAME = "invalid-for-now";
+    public static String UNIQUE_OUTPUT_FOLDER_NAME = "";
 
     /***
      * Sets the application's directory paths differently whether it is a JAR file calling or an IDE

src/main/java/processors/FileProcessor.java

@@ -125,10 +125,10 @@ else if(SystemUtils.IS_OS_LINUX){
                 Controllers.getLogController().logTextArea.appendText("32-bit Linux not supported yet\n");
             }
             else if (bit == 64){
-                System.load(Paths.get(ApplicationPaths.RESOURCES_NATIVES,"opencv_320_64.so").toString());
+                System.load(Paths.get(ApplicationPaths.RESOURCES_NATIVES,"libopencv_320_64.so").toString());
                 Controllers.getLogController().logTextArea.appendText("Loaded OpenCV for Linux 64 bit\n");
 
-                System.load(Paths.get(ApplicationPaths.RESOURCES_NATIVES,"openh264-1.6.0-linux64.3.so").toString());
+                System.load(Paths.get(ApplicationPaths.RESOURCES_NATIVES,"libopenh264-1.6.0-linux64.3.so").toString());
                 Controllers.getLogController().logTextArea.appendText("Loaded OpenH264 for Linux 64 bit\n");
             }
             else {

src/main/java/processors/OcrProcessor.java

@@ -28,7 +28,7 @@ public class OcrProcessor
     public static void initializeOcr(tesseract.TessBaseAPI ocrApi) throws Exception {
         if (ocrApi.Init(ApplicationPaths.RESOURCES_OCR, SettingsController.getLanguageMap().
                 get(Controllers.getSettingsController().ocrLanguage_combobox.getSelectionModel().getSelectedItem().toString())) != 0) {
-            throw new Exception("Failed to set OCR language!");
+            throw new Exception("Failed to set ocr language!");
         }
         /*if (!Controllers.getSettingsController().includeSpecialCharacters_checkbox.isSelected()){
             ocrApi.SetVariable("tessedit_char_blacklist", "`,#[];()!£\"$%^&\\²³²£§¶¤°¦<>|€");

src/main/java/processors/VideoProcessor.java

@@ -59,7 +59,7 @@ public static void processVideoFile(File videoFile)
         {
             @Override protected Void call()
             {
-                // OCR Initialization
+                // ocr Initialization
                 uniqueWords = new ArrayList<>();
                 tesseract.TessBaseAPI ocrApi = new tesseract.TessBaseAPI();
                 try {
@@ -154,7 +154,7 @@ default value (-1, -1) means that the anchor is at the element center.
                     // Write painted frame to video
                     videoWriter.write(inputWithTextBlocks);
 
-                    // Preprocess textblocks and extract text with OCR
+                    // Preprocess textblocks and extract text with ocr
                     if (Controllers.getSettingsController().extractTextCheckBox.isSelected()){
                         for (Mat textBlock : ImageProcessor.getCroppedTextBlocks(textBlocks)){
                             File ocrImageFile = preprocessTextBlock(textBlock);
@@ -226,7 +226,7 @@ default value (-1, -1) means that the anchor is at the element center.
 
 
     /**
-     *  Preprocesses the text blocks, before proceeding to OCR, in order
+     *  Preprocesses the text blocks, before proceeding to ocr, in order
      *  to achieve better extraction results
      * @param textBlock List of image's text blocks in Rect format
      */