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update file manager class #5

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54 changes: 48 additions & 6 deletions src/editor/FileManager.java
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Original file line number Diff line number Diff line change
@@ -1,29 +1,71 @@
package editor;

import javax.swing.*;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.PrintStream;
import java.util.Scanner;

public class FileManager {
public static void openFile(TextEditor textEditor, JTextArea textArea) {
private static int number = 10000;

public static void openFile(TextEditor textEditor, JTextArea textArea){
textArea.setText("");
JFileChooser fileChooser = new JFileChooser();
if (fileChooser.showOpenDialog(textEditor) == JFileChooser.APPROVE_OPTION) {
//File file = fileChooser.getSelectedFile();
//TODO
File file = fileChooser.getSelectedFile();
textEditor.currentFile = file;
try {
Scanner scanner = new Scanner(textEditor.currentFile);
String line;
while ((line = scanner.nextLine()) != null){
textArea.append(line + "\n");
}
scanner.close();
} catch (FileNotFoundException e) {
e.getStackTrace();
}
}
}

public static void saveFile(TextEditor textEditor, JTextArea textArea) {
if (textEditor.currentFile == null){
JFileChooser fileChooser = new JFileChooser();
if (fileChooser.showSaveDialog(textEditor) == JFileChooser.APPROVE_OPTION) {
//TODO
try {
PrintStream printStream = new PrintStream(fileChooser.getSelectedFile());
printStream.print(textArea.getText());
printStream.close();
} catch (FileNotFoundException e) {
e.getStackTrace();
}
}
}
else{
//TODO
try {
PrintStream printStream = new PrintStream(textEditor.currentFile);
printStream.print(textArea.getText());
printStream.close();
} catch (FileNotFoundException e) {
e.getStackTrace();
}
}
}

public static void newFile(TextEditor textEditor, JTextArea textArea) {
//TODO
File file = new File("newfile" + number + ".txt");
number++;
try {
if(file.createNewFile()){
textEditor.currentFile = file;
System.out.println("file created: " + file.getName());
textArea.setText("");
}else{
System.out.println("file already exists.");
}
} catch (IOException e) {
e.getStackTrace();
}
}
}