javagl · March 6, 2018 05:45 · Mar 6, 2018
diff --git a/ProperImageFrame.java b/ProperImageFrame.java
@@ -0,0 +1,103 @@
+import java.awt.BorderLayout;
+import java.awt.FlowLayout;
+import java.awt.Graphics;
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+
+import javax.imageio.ImageIO;
+import javax.swing.JButton;
+import javax.swing.JFrame;
+import javax.swing.JPanel;
+import javax.swing.SwingUtilities;
+import javax.swing.UIManager;
+import javax.swing.UIManager.LookAndFeelInfo;
+import javax.swing.UnsupportedLookAndFeelException;
+
+public class ProperImageFrame
+{
+    public static void main(String args[])
+    {
+        SwingUtilities.invokeLater(() -> createAndShowGui());
+    }
+
+    private static void createAndShowGui()
+    {
+        tryToSetLookAndFeel();
+
+        JFrame f = new JFrame();
+        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+
+        f.getContentPane().setLayout(new BorderLayout());
+
+        ImagePanel imagePanel = new ImagePanel();
+        f.getContentPane().add(imagePanel, BorderLayout.CENTER);
+
+        JButton importButton = new JButton("Import");
+        importButton.addActionListener(e -> loadAndShowImage(imagePanel));
+
+        JPanel buttonPanel = new JPanel();
+        buttonPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
+        buttonPanel.add(importButton);
+        f.getContentPane().add(buttonPanel, BorderLayout.SOUTH);
+
+        f.setSize(1000, 700);
+        f.setLocationRelativeTo(null);
+        f.setVisible(true);
+    }
+
+    private static void loadAndShowImage(ImagePanel imagePanel)
+    {
+        try
+        {
+            BufferedImage image = ImageIO.read(new File("image01.jpg"));
+            imagePanel.setImage(image);
+        } 
+        catch (IOException ex)
+        {
+            ex.printStackTrace();
+        }
+    }
+
+    private static void tryToSetLookAndFeel()
+    {
+        try
+        {
+            for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels())
+            {
+                if ("Nimbus".equals(info.getName()))
+                {
+                    UIManager.setLookAndFeel(info.getClassName());
+                    return;
+                }
+            }
+        } catch (UnsupportedLookAndFeelException | ClassNotFoundException
+            | InstantiationException | IllegalAccessException ex)
+        {
+            ex.printStackTrace();
+        }
+    }
+
+    private static class ImagePanel extends JPanel
+    {
+        private BufferedImage image;
+
+        void setImage(BufferedImage image)
+        {
+            this.image = image;
+            repaint();
+        }
+
+        @Override
+        protected void paintComponent(Graphics g)
+        {
+            super.paintComponent(g);
+            if (image != null)
+            {
+                g.drawImage(image, 0, 0, null);
+            }
+        }
+
+    }
+}
+