Quality of Life changes to the viewer

changed:
/ SwingIFrame ; Some new methodes for setting bg color, and fullscreen, keybinds are "F11" and "B"
/ WebcamCaptureLoop.java ; Safety is key!

---
rattatwinko

src/main/java/io/swtc/SwingIFrame.java

@@ -10,6 +10,7 @@ import javax.swing.*;
 import javax.swing.border.EmptyBorder;
 import javax.swing.border.TitledBorder;
 import java.awt.*;
+import java.awt.event.ActionEvent;
 import java.awt.image.BufferedImage;
 import java.io.File;
 import java.text.SimpleDateFormat;
@@ -24,14 +25,28 @@ import java.util.Date;
 public class SwingIFrame {
     private final JFrame mainFrame;
     private final JDesktopPane desktopPane;
+    private boolean fullscreen = false;
+    private Rectangle windowedBounds;
+    private boolean blackbg = false;
+    private final Color defDesktopBg;
+    private final Color bgcolor;
 
     public SwingIFrame() {
         mainFrame = new JFrame("viewer");
         mainFrame.setSize(1280,720);
         mainFrame.setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE);
+
+        // this is good on the eyes for long periods of times,
+        // i would have used #4B9EA0, which is also easy on the eyes
+        bgcolor = Color.decode("#1e1e1e");
+
         desktopPane = new JDesktopPane();
         desktopPane.setBackground(Color.WHITE);
+        defDesktopBg = desktopPane.getBackground();
         mainFrame.add(desktopPane, BorderLayout.CENTER);
+
+        setupFullscreenToggle();
+        setupBlackBg();
     }
 
     public void addCameraInternalFrame(Webcam webcam) {
@@ -73,6 +88,79 @@ public class SwingIFrame {
         captureLoop.start();
     }
 
+    private void setupBlackBg() {
+        JRootPane root = mainFrame.getRootPane();
+
+        root.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW)
+                .put(KeyStroke.getKeyStroke("B"), "toggleBlackBg");
+
+        root.getActionMap().put("toggleBlackBg", new AbstractAction() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                setbgblack();
+            }
+        });
+    }
+    /* Setup F11 for Fullscreen */
+    private void setupFullscreenToggle() {
+        JRootPane root = mainFrame.getRootPane();
+
+        root.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW)
+                .put(KeyStroke.getKeyStroke("F11"), "toggleFullscreen");
+
+        root.getActionMap().put("toggleFullscreen", new AbstractAction() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                toggleFullscreen();
+            }
+        });
+    }
+
+    private void setbgblack() {
+        if (!blackbg) {
+            // easy stuff here, just setting the bg to the private color
+            desktopPane.setBackground(bgcolor);
+            updateInternalFrameBg(bgcolor);
+        } else {
+            desktopPane.setBackground(defDesktopBg);
+            updateInternalFrameBg(null);
+        }
+        blackbg = !blackbg;
+    }
+
+    private void updateInternalFrameBg(Color bg) {
+        for (JInternalFrame frame : desktopPane.getAllFrames()) {
+            Container content = frame.getContentPane();
+            if (bg != null) {
+                content.setBackground(bg);
+            } else content.setBackground(null); // restore default
+            content.repaint();
+        }
+    }
+
+    private void toggleFullscreen() {
+        if (!fullscreen) {
+            // We set the window to borderless windowed mode, so it doesnt
+            // lag like shit when we drag windows around, which is annoying
+            windowedBounds = mainFrame.getBounds();
+            mainFrame.dispose();
+            mainFrame.setUndecorated(true);
+            mainFrame.setExtendedState(JFrame.MAXIMIZED_BOTH);
+            mainFrame.setVisible(true);
+        } else {
+            // do the opposite
+            mainFrame.dispose();
+            mainFrame.setUndecorated(false);
+            mainFrame.setExtendedState(JFrame.NORMAL);
+            mainFrame.setBounds(windowedBounds);
+            mainFrame.setVisible(true);
+        }
+
+        fullscreen = !fullscreen;
+    }
+
+
+
     private JPanel createCapturePanel(CameraPanel cameraPanel, Webcam webcam) {
         JPanel panel = new JPanel(new BorderLayout(10, 10));
         panel.setBorder(new EmptyBorder(15, 15, 15, 15));

src/main/java/io/swtc/proccessing/WebcamCaptureLoop.java

@@ -5,13 +5,15 @@ import com.github.sarxos.webcam.WebcamException;
 
 import java.awt.Dimension;
 import java.awt.image.BufferedImage;
+import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.function.Consumer;
-import javax.swing.JOptionPane;
+import javax.swing.*;
 
 public class WebcamCaptureLoop {
     private final Webcam webcam;
     private final Consumer<BufferedImage> onFrameCaptured;
     private volatile boolean running = false;
+    private final AtomicBoolean cleanedUp = new AtomicBoolean(false);
 
     public WebcamCaptureLoop(Webcam webcam, Consumer<BufferedImage> onFrameCaptured) {
         this.webcam = webcam;
@@ -64,22 +66,40 @@ public class WebcamCaptureLoop {
         captureThread.start();
     }
 
-    // method for cleaning up
+    /**
+     * Safely release webcam
+     */
     private synchronized void cleanup() {
+        if (!cleanedUp.compareAndSet(false, true)) {
+            return;
+        }
+
+        boolean success = false;
+
         try {
-            // if the camera is open try to cloes it!
-            webcam.close();
+            if (webcam.isOpen())
+                webcam.close();
+
+            success = true;
+
         } catch (WebcamException exception) {
+            SwingUtilities.invokeLater(() ->
             JOptionPane.showMessageDialog(
                     null,
                     "Cleanup failed \nWebCamException@"+exception.getMessage(),
                     "WebCamException",
-                    JOptionPane.ERROR_MESSAGE
-            );
+                    JOptionPane.WARNING_MESSAGE // changed to warning, its better tbh
+            ));
+        } finally {
+            if (!success)
+                cleanedUp.set(false);
         }
-
     }
 
+    /**
+     * Arguments: null (or just none)
+     * What does this method do? : Sets CameraThreads running flag to false and calls cleanup();
+     */
     public void stop() {
         running = false;
         cleanup();