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scrollbars don't scroll in Composite [message #1779800]

Fri, 12 January 2018 20:22

Beth Arnold

Messages: 3
Registered: January 2018

Junior Member

I'm sure this has been answered before, but I just can't find it.
Eclipse Helios RCP code
Java 1.6

Now that everyone has finished laughing ...
I added a Composite inside another composite and I run through a loop, adding an unknown number of buttons to the second Composite. I did try using a ScrolledComposite, but can't get the buttons to appear in it, so I'm using a vanilla Composite. The scrollbars appear, but don't do anything.

Code speaks louder than words. I've left stuff out, but this is the gist. I'm sure there's something simple I've left out, like enabling scrolling or reciting the Pledge of Allegiance.

Composite wComp1 = new Composite(wComp, SWT.V_SCROLL|SWT.H_SCROLL);
wComp1.setBackground(null);

setControl(wComp1);
wComp1.setLayout(new FormLayout());

wData = new FormData();
wData.top = new FormAttachment(wLastControl, 20);
wData.left = new FormAttachment(0, 10);
wData.right = new FormAttachment(100, -10);
wData.bottom = new FormAttachment(100, -10);
wComp1.setLayoutData(wData);

try {
//get the data
pCodes[] = ...... (omitted)

for (int i = 0; i < pCodes.length; i++) {
if (pCodes[i].getPayerBypassCode() != BigInteger.ZERO) {
Button wButton = new Button(wComp1, SWT.CHECK);
wButton.setBackground(null);
wData = new FormData();
wData.left = new FormAttachment(0, 25);
wData.top = new FormAttachment(wLastControl, 5);
wButton.setLayoutData(wData);
addPayerBypassButton(wButton, pCodes[i]);
wButton.addSelectionListener(new SelectionListener() {
---------------------------------------------------------------------------------------------------------------

Appreciate any help!

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Re: scrollbars don't scroll in Composite [message #1779815 is a reply to message #1779800]

Sat, 13 January 2018 08:03

Ed Merks

Messages: 33140
Registered: July 2009

Senior Member

I'm not sure the answer, but perhaps the SWT Snippets contain an example https://www.eclipse.org/swt/snippets/ if you search for the word "scroll" on that page.

Ed Merks
Professional Support: https://www.macromodeling.com/

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