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Difference between hidemode 1 and hidemode 2 ??

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Jonathan Joined: Fri Sep 21, 2007 1:10 am Posts: 23	Difference between hidemode 1 and hidemode 2 ?? I can't figure out what the difference is between hidemode 1 and 2. The documentation says: 1 - The size of an invisible component will be set to 0, 0. 2 - The size of an invisible component will be set to 0, 0 and the gaps will also be set to 0 around it. I don't see any difference between these two modes. All gaps seem to be present, regardless of whether it's hidemode 1 or 2. At first, I just had three components in a row: Code: c.setLayout(new MigLayout("debug, hidemode 2")); c.add(new JLabel("Hello world")); JLabel hideme = new JLabel("HIDE ME"); hideme.setVisible(false); c.add(hideme, "gapright 50"); c.add(new JLabel("Hello 2 world"), "wrap"); Then I thought maybe it didn't work because they have to be in a split cell: Code: c.setLayout(new MigLayout("debug, hidemode 2")); c.add(new JLabel("Hello world"), "split 3"); JLabel hideme = new JLabel("HIDE ME"); hideme.setVisible(false); c.add(hideme, "gapright 50"); c.add(new JLabel("Hello 2 world"), "wrap"); Then I thought perhaps it will remove row gaps if the invisible component is on it's own row. That didn't matter either. Which gaps does hidemode 2 remove? Thanks!
Wed Nov 11, 2009 11:03 pm

MiG Support Site Admin Joined: Mon Dec 06, 2004 4:24 pm Posts: 2485 Location: Sweden	Re: Difference between hidemode 1 and hidemode 2 ?? Hmm, then it might be a bug. It is put, in the now rather long, work queue. Crazy much to do.. Cheers, Mikael
Wed Nov 11, 2009 11:11 pm

Jonathan Joined: Fri Sep 21, 2007 1:10 am Posts: 23	Re: Difference between hidemode 1 and hidemode 2 ?? Thanks, that's what I was thinking. I hear ya about the work queue
Wed Nov 11, 2009 11:31 pm

gryphius Joined: Thu Apr 23, 2009 3:33 pm Posts: 4	Re: Difference between hidemode 1 and hidemode 2 ?? Almost exactly two years later, I was about to ask the same question. In my tests there was no difference between hidemode 1 and hidemode 2. In other words: hidemode 2 does not remove any gaps around the invisible controls. I have created a small standalone example for SWT to illustrate this. Basically, it creates two columns of labels. The labels on the second column have a gapleft 10, gapright 10 and are then made invisible. The red bar you see when running the example as is, are the two gaps that - from how I would hidemode 2 expect to work - should be gone. Is this a bug, or am I doing something wrong? Code: import net.miginfocom.swt.MigLayout; import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; public class HideModeTest { public static void main(String[] args) { Display display = new Display(); Shell shell = new Shell(display); shell.setBackground(shell.getDisplay().getSystemColor(SWT.COLOR_RED)); shell.setLayout(new MigLayout("wrap, gap 0, hidemode 2, insets 0", " [] [] ")); int rows = 10; for (int i = 0; i < rows * 2; i++) { Label label = new Label(shell, SWT.BORDER); if (i % 2 > 0) { label.setLayoutData("gapleft 10, gapright 10"); } label.setText("labellabellabellabellabellabellabellabel"); } Control[] children = shell.getChildren(); for (int i = 0; i < children.length; i++) { if (i % 2 > 0) { children[i].setVisible(false); } } shell.pack(); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } display.dispose(); } }
Wed Nov 09, 2011 7:27 pm

MiG Support Site Admin Joined: Mon Dec 06, 2004 4:24 pm Posts: 2485 Location: Sweden	Re: Difference between hidemode 1 and hidemode 2 ?? Hello, It does not remove the gaps between columns, that would be ambiguous between rows. If you have two or more components in the same cell it removes the gaps between them. Cheers, Mikael
Wed Nov 09, 2011 10:12 pm

gryphius Joined: Thu Apr 23, 2009 3:33 pm Posts: 4	Re: Difference between hidemode 1 and hidemode 2 ?? Hmm, alright. I thought it works something like this: Each cell (or rather the component within it) can tell how much space it wants on each side. If that space is between two components the maximum of the left component's right gap and the right component's left gap is taken. And if one component is made invisible and hidemode is 2, then the component incl. its declared gap requirements are counted as 0. For all my use cases this seems like the natural way to do it. Oh well, maybe it's an idea to think about for future versions In any case, thank you for your effort.
Thu Nov 10, 2011 1:29 am

cowwoc Joined: Mon Aug 23, 2010 6:24 am Posts: 54	Re: Difference between hidemode 1 and hidemode 2 ?? MiG Support wrote: Hello, It does not remove the gaps between columns, that would be ambiguous between rows. If you have two or more components in the same cell it removes the gaps between them. Cheers, Mikael So now the documentation is ambiguous. It reads "The size of an invisible component will be set to 0, 0 and the gaps will also be set to 0 around it." It sounds as if you're talking about all gaps. I am expecting this behavior: If an entire column is invisible, remove the gap between it and surrounding columns. If an entire row is invisible, remove the gap between it and surrounding rows. The same applies for "split" components: if a split component is invisible, remove the gap between it and surrounding components.
Mon Jan 16, 2012 6:29 pm
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