I converted the FancyBox BSH GUI to Netbeans code, but the compiled version did not shown scrollbars if the window was too small to show all controls.

So I added a scroll pane at the end:

// Tabbed pane
            JTabbedPane tabs = new JTabbedPane() {
                {
                    add(generalPanel, "General");
                    add(webPanel, "Web page");
                    add(indexPanel, "Index page");
                    add(linksPanel, "Links");
                    add(slidePanel, "Slide page");
                    add(mapPanel, "Map");
                    add(musicPanel, "Music");
                    add(aboutPanel, "About");
                }
            };
            
            JScrollPane scrollPane = new JScrollPane(tabs, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED) {
                {
                    scrollPane.setBorder(BorderFactory.createEmptyBorder());
                    scrollPane.setOpaque(false);
                    scrollPane.getViewport().setOpaque(false);
                    add("hfill vfill", scrollPane);
                }
            };
 
            {
                add("vtop hfill vfill", tabs);
                putClientProperty("helpPage", "https://www.andrewolff.nl/SkinsManual/");
            }
 
        };
 
// Set the UI
        window.setSkinUI(ui);
        window.pack();
    }
}

This was compiled without errors in NetBeans, but after I loaded it in the skin I get a crash:

Stack trace for jAlbum 22.0.4 using skin FancyBox 3.0.0:
 
se.datadosen.util.ScriptException: java.lang.NullPointerException in onload.bsh at line number 1
	at se.datadosen.util.ScriptException.of(ScriptException.java:59)
	at se.datadosen.jalbum.AlbumBean.processScript(AlbumBean.java:2579)
	at se.datadosen.jalbum.JAlbumFrame.executeScript(JAlbumFrame.java:1282)
	at se.datadosen.jalbum.JMainSettingsPanel$5$1.run(JMainSettingsPanel.java:313)
Caused by: javax.script.ScriptException: bsh.TargetError: Sourced file: inline evaluation of: ``new FancyBox(engine);    ;'' : Object constructor : at Line: 1 : in file: inline evaluation of: ``new FancyBox(engine);    ;'' : new FancyBox ( engine ) 
 
Target exception: java.lang.NullPointerException
 in inline evaluation of: ``new FancyBox(engine);    ;'' at line number 1
	at bsh.BshScriptEngine.evalSource(BshScriptEngine.java:90)
	at bsh.BshScriptEngine.eval(BshScriptEngine.java:57)
	at java.scripting/javax.script.AbstractScriptEngine.eval(Unknown Source)
	at se.datadosen.jalbum.AlbumBean.doProcessExpression(AlbumBean.java:2636)
	at se.datadosen.jalbum.AlbumBean.processExpression(AlbumBean.java:2621)
	at se.datadosen.jalbum.AlbumBean.processScript(AlbumBean.java:2577)
	... 2 more
Caused by: java.lang.NullPointerException
	at FancyBox$1$10.<init>(FancyBox.java:2004)
	at FancyBox$1.<init>(FancyBox.java:2002)
	at FancyBox.<init>(FancyBox.java:136)
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

Line 2003 is the line starting with JScrollPane scrollPane = new JScrollPane(

What do I wrongly?

Edit:
This was ofcourse not my own code, I did copy it from Pluto, but the Pluto code

                JScrollPane scrollPane = new JScrollPane(tabs, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
                scrollPane.setBorder(BorderFactory.createEmptyBorder());
                scrollPane.setOpaque(false);
                scrollPane.getViewport().setOpaque(false);
                add("hfill vfill", scrollPane);

showed red lines below the last 4 lines. I could remove these ony by adding brackets as you see above.

Edit2:
I solved the crash with this code:

            JScrollPane scrollPane = new JScrollPane(tabs, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED) {
                {
                    setBorder(BorderFactory.createEmptyBorder());
                    setOpaque(false);
                    getViewport().setOpaque(false);
                }              
            };
 
            {  
                add("hfill vfill", scrollPane);               
                add("vtop hfill vfill", tabs);
                putClientProperty("helpPage", "https://www.andrewolff.nl/SkinsManual/");
            }
 
        };
 
// Set the UI
        window.setSkinUI(ui);
        window.pack();
    }
}

But I see no scrollbars on small windows, also not if I interchange the last 2 add statements.

Edited by: AndreWolff on 15-Oct-2020 10:47

Edited by: AndreWolff on 15-Oct-2020 10:55

Yes, that brings up the scroll bars in small windows!

Thanks!