Initial commit

MDM-LCAG-JavaFunctions/src/main/java/application/FileActions.java

@@ -0,0 +1,101 @@
+package application;
+
+import java.awt.Desktop;
+import java.awt.GridLayout;
+import java.io.File;
+import java.io.IOException;
+
+import javax.swing.JButton;
+import javax.swing.JFileChooser;
+import javax.swing.JFrame;
+import javax.swing.JLabel;
+import javax.swing.JMenu;
+import javax.swing.JMenuBar;
+import javax.swing.JMenuItem;
+import javax.swing.JOptionPane;
+import javax.swing.SwingUtilities;
+import javax.swing.filechooser.FileNameExtensionFilter;
+
+public class FileActions extends JFrame {
+	private JLabel file1Label, file2Label;
+	private JButton selectFile1, selectFile2;
+	private File file1, file2;
+	private JMenuBar menuBar;
+	private JMenu actionsMenu;
+	private JMenuItem openInExcelItem;
+
+	public FileActions() {
+		setTitle("Datei-Auswahl und Aktionen");
+		setSize(400, 200);
+		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		setLayout(new GridLayout(3, 2));
+
+		file1Label = new JLabel("Datei 1: Keine ausgew<65>hlt");
+		file2Label = new JLabel("Datei 2: Keine ausgew<65>hlt");
+		selectFile1 = new JButton("Datei 1 ausw<73>hlen");
+		selectFile2 = new JButton("Datei 2 ausw<73>hlen");
+
+		// File Chooser f<>r Datei 1 (nur Excel-Dateien)
+		selectFile1.addActionListener(e -> {
+			JFileChooser fileChooser = new JFileChooser();
+			FileNameExtensionFilter filter = new FileNameExtensionFilter("Excel-Dateien", "xls", "xlsx");
+			fileChooser.setFileFilter(filter);
+			if (fileChooser.showOpenDialog(this) == JFileChooser.APPROVE_OPTION) {
+				file1 = fileChooser.getSelectedFile();
+				file1Label.setText("Datei 1: " + file1.getName());
+				selectFile2.setEnabled(true);
+			}
+		});
+
+		// File Chooser f<>r Datei 2 (im selben Verzeichnis wie Datei 1, nur
+		// Excel-Dateien)
+		selectFile2.setEnabled(false);
+		selectFile2.addActionListener(e -> {
+			if (file1 != null) {
+				JFileChooser fileChooser = new JFileChooser(file1.getParentFile());
+				FileNameExtensionFilter filter = new FileNameExtensionFilter("Excel-Dateien", "xls", "xlsx");
+				fileChooser.setFileFilter(filter);
+				if (fileChooser.showOpenDialog(this) == JFileChooser.APPROVE_OPTION) {
+					file2 = fileChooser.getSelectedFile();
+					file2Label.setText("Datei 2: " + file2.getName());
+				}
+			}
+		});
+
+		add(selectFile1);
+		add(file1Label);
+		add(selectFile2);
+		add(file2Label);
+
+		// Men<65> erstellen
+		menuBar = new JMenuBar();
+		actionsMenu = new JMenu("Aktionen");
+		openInExcelItem = new JMenuItem("Erste Datei in Excel <20>ffnen");
+
+		actionsMenu.add(openInExcelItem);
+		menuBar.add(actionsMenu);
+		setJMenuBar(menuBar);
+
+		// Aktion: Erste Datei in Excel <20>ffnen
+		openInExcelItem.addActionListener(e -> {
+			if (file1 != null) {
+				try {
+					Desktop.getDesktop().open(file1);
+				} catch (IOException ex) {
+					JOptionPane.showMessageDialog(this, "Fehler beim <20>ffnen der Datei in Excel.", "Fehler",
+							JOptionPane.ERROR_MESSAGE);
+				}
+			} else {
+				JOptionPane.showMessageDialog(this, "Bitte w<>hle zuerst eine Datei aus!", "Fehler",
+						JOptionPane.ERROR_MESSAGE);
+			}
+		});
+	}
+
+	public static void main(String[] args) {
+		SwingUtilities.invokeLater(() -> {
+			FileActions gui = new FileActions();
+			gui.setVisible(true);
+		});
+	}
+}