refactors

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

@@ -1,9 +1,12 @@
 package io.swtc;
 
 import com.github.sarxos.webcam.Webcam;
-import io.swtc.proccessing.ui.iframe.*;
+import io.swtc.proccessing.ui.iframe.*; // Your custom frames
 import javax.swing.*;
 import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -12,14 +15,28 @@ public class SwingIFrame {
     private final DesktopPane desktopPane;
     private final Map<JInternalFrame, EffectsPanelFrame> cameraToEffects = new HashMap<>();
 
+    private boolean fullscreen = false;
+    private Rectangle windowedBounds;
+    private boolean blackbg = false;
+    private final Color bgcolor = Color.decode("#336B6A");
+    private final Color defDesktopBg = Color.WHITE;
+
+    private final JPopupMenu popupMenu = new JPopupMenu();
+
     public SwingIFrame() {
         mainFrame = new JFrame("Viewer");
         mainFrame.setSize(1280, 720);
         mainFrame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
 
         desktopPane = new DesktopPane(cameraToEffects);
-        desktopPane.setBackground(Color.WHITE);
+        desktopPane.setBackground(defDesktopBg);
         mainFrame.add(desktopPane, BorderLayout.CENTER);
+
+        setupFullscreenToggle();
+        setupBlackBg();
+        initPopupMenu();
+
+        desktopPane.addMouseListener(popupListener());
     }
 
     public void addCameraInternalFrame(Webcam webcam) {
@@ -43,11 +60,20 @@ public class SwingIFrame {
                 EffectsPanelFrame ef = cameraToEffects.remove(cameraFrame);
                 if (ef != null) ef.dispose();
                 desktopPane.forgetFrame(cameraFrame);
+                cameraFrame.dispose();
             }
         });
 
         desktopPane.add(cameraFrame);
         desktopPane.add(effectsFrame);
+
+        // Attach popup menu to frames and content
+        MouseAdapter popup = popupListener();
+        cameraFrame.addMouseListener(popup);
+        cameraFrame.getContentPane().addMouseListener(popup);
+        effectsFrame.addMouseListener(popup);
+        effectsFrame.getContentPane().addMouseListener(popup);
+
         cameraFrame.setVisible(true);
     }
 
@@ -58,12 +84,92 @@ public class SwingIFrame {
             try {
                 effectsFrame.setSelected(true);
                 effectsFrame.toFront();
-            } catch (java.beans.PropertyVetoException ex) { JOptionPane.showMessageDialog(null,"Exception" + ex.getMessage() , "Exception", JOptionPane.ERROR_MESSAGE); }
+            } catch (java.beans.PropertyVetoException ex) {
+                JOptionPane.showMessageDialog(null, "Focus Error: " + ex.getMessage(), "Error", JOptionPane.ERROR_MESSAGE);
+            }
         }
     }
 
+    private MouseAdapter popupListener() {
+        return new MouseAdapter() {
+            private void showPopup(MouseEvent e) {
+                if (e.isPopupTrigger()) { // cross-platform trigger
+                    popupMenu.show(e.getComponent(), e.getX(), e.getY());
+                }
+            }
+            @Override public void mousePressed(MouseEvent e) { showPopup(e); }
+            @Override public void mouseReleased(MouseEvent e) { showPopup(e); }
+        };
+    }
+
+    private void initPopupMenu() {
+        popupMenu.removeAll(); // clean slate
+
+        JCheckBoxMenuItem fullscreenItem = new JCheckBoxMenuItem("Fullscreen");
+        fullscreenItem.addActionListener(e -> toggleFullscreen());
+
+        popupMenu.addPopupMenuListener(new javax.swing.event.PopupMenuListener() {
+            @Override
+            public void popupMenuWillBecomeVisible(javax.swing.event.PopupMenuEvent e) {
+                fullscreenItem.setState(fullscreen);
+            }
+            @Override public void popupMenuWillBecomeInvisible(javax.swing.event.PopupMenuEvent e) {}
+            @Override public void popupMenuCanceled(javax.swing.event.PopupMenuEvent e) {}
+        });
+
+        popupMenu.add(fullscreenItem);
+    }
+
+    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) {
+                toggleBackground();
+            }
+        });
+    }
+
+    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 toggleBackground() {
+        desktopPane.setBackground(blackbg ? defDesktopBg : bgcolor);
+        blackbg = !blackbg;
+        desktopPane.repaint();
+    }
+
+    /** Toggle fullscreen mode */
+    private void toggleFullscreen() {
+        if (!fullscreen) {
+            windowedBounds = mainFrame.getBounds();
+            mainFrame.dispose();
+            mainFrame.setUndecorated(true);
+            mainFrame.setExtendedState(JFrame.MAXIMIZED_BOTH);
+            mainFrame.setVisible(true);
+        } else {
+            mainFrame.dispose();
+            mainFrame.setUndecorated(false);
+            mainFrame.setExtendedState(JFrame.NORMAL);
+            mainFrame.setBounds(windowedBounds);
+            mainFrame.setVisible(true);
+        }
+        fullscreen = !fullscreen;
+    }
+
     public void show() {
         mainFrame.setLocationRelativeTo(null);
         mainFrame.setVisible(true);
     }
-}
+}

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

@@ -43,8 +43,6 @@ public class WebcamCaptureLoop {
                         "WebcamException",
                         JOptionPane.ERROR_MESSAGE
                 );
-            } finally {
-                webcam.open();
             }
 
             while (running) {

src/main/java/io/swtc/proccessing/ui/iframe/DesktopPane.java

@@ -56,11 +56,11 @@ public class DesktopPane extends JDesktopPane {
         int ctrlOffset = Math.min(Math.abs(x2 - x1) / 2, 150);
         CubicCurve2D curve = new CubicCurve2D.Double(x1, y1, x1 + ctrlOffset, y1, x2 - ctrlOffset, y2, x2, y2);
 
-        g2d.setStroke(new BasicStroke(3f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));
-        g2d.draw(curve);
+        //g2d.setStroke(new BasicStroke(3f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));
+        //g2d.draw(curve);
 
         // Terminals
-        g2d.fillOval(x1 - 5, y1 - 5, 10, 10);
-        g2d.fillOval(x2 - 5, y2 - 5, 10, 10);
+        //g2d.fillOval(x1 - 5, y1 - 5, 10, 10);
+        //g2d.fillOval(x2 - 5, y2 - 5, 10, 10);
     }
 }