made thumbnailicon computation at the end of the slide optional

java/ttt/Experimental.java

+package ttt;
+
+
+import java.awt.BorderLayout;
+import java.awt.Dimension;
+import java.awt.Toolkit;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.prefs.BackingStoreException;
+import java.util.prefs.Preferences;
+
+import javax.swing.BoxLayout;
+import javax.swing.JButton;
+import javax.swing.JFrame;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+import javax.swing.JTextField;
+
+public class Experimental {
+	static Preferences experimentalRoot = TTT.userPrefs.node("experimental");
+	
+	public static enum Code {
+		MICTHRESHOLD("micthreshold","0.00000001"),
+		THUMBNAILATSTART("thumbnail at start","true");
+		
+		public String key;
+		public String def;
+		Code(String key,String def){
+			this.key=key;
+			this.def=def;
+		}
+		public String get() {
+			return experimentalRoot.get(key, def);
+		}
+		public void set(String val) {
+			experimentalRoot.put(key,val);
+		}
+	}
+	public static void main(String[] args) throws BackingStoreException, IllegalArgumentException, IllegalAccessException{
+		for (String s : experimentalRoot.childrenNames())
+			System.out.println(s);
+		
+		final JFrame frame = new JFrame("TTT Experimental Options");
+		JPanel pane = new JPanel();
+		pane.setLayout(new BoxLayout(pane, BoxLayout.PAGE_AXIS));
+		final Map<String,JTextField> map = new HashMap<>();
+		ActionListener action = new ActionListener() {
+			
+			@Override
+			public void actionPerformed(ActionEvent arg0) {
+				String newval = map.get(arg0.getActionCommand()).getText();
+				experimentalRoot.put(arg0.getActionCommand(), newval);
+				try {
+					experimentalRoot.flush();
+				} catch (BackingStoreException e) {
+					// TODO Auto-generated catch block
+					e.printStackTrace();
+				}
+			}
+		};
+
+		for (Code c: Code.values()) {
+			JPanel panel = new JPanel();
+			JLabel label = new JLabel(c.name());
+			panel.add(label);
+			JTextField text = new JTextField(experimentalRoot.get(c.key,c.def.toString()));
+			panel.add(text);
+			map.put(c.key,text);
+			JButton butt =new JButton("Save");
+			butt.setActionCommand(c.key);
+
+			butt.addActionListener(action);
+			panel.add(butt);
+			pane.add(panel);
+		}
+		
+		JPanel globpanel = new JPanel(new BorderLayout());
+		globpanel.add(pane,BorderLayout.CENTER);
+		JButton close=new JButton("Close");
+		close.addActionListener(new ActionListener() {
+			
+			@Override
+			public void actionPerformed(ActionEvent arg0) {
+				frame.dispose();
+				
+			}
+		});
+		globpanel.add(close,BorderLayout.SOUTH);
+		frame.add(globpanel);
+		frame.pack();
+		frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
+		
+		
+		Dimension dim = Toolkit.getDefaultToolkit().getScreenSize();
+		frame.setLocation(dim.width/2-frame.getSize().width/2, dim.height/2-frame.getSize().height/2);
+		frame.setVisible(true);
+		
+	}
+}

java/ttt/gui/Index.java

@@ -789,8 +789,11 @@ public class Index {
                 	if (i+1<index.size()){
                 		timestamp += (index.get(i+1).getTimestamp()-timestamp)*.95;
                 	}
-               
-                recording.setTime(timestamp,false);
+            	boolean beginofslide = Boolean.parseBoolean(ttt.Experimental.Code.THUMBNAILATSTART.get());
+            	if (beginofslide)
+            		recording.setTime(indexEntry.getTimestamp());
+            	else
+            		recording.setTime(timestamp,false);
 
                 // create screenshot
                 Image screenshot = recording.graphicsContext.getScreenshotWithoutAnnotations();