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Table/Tree Item SWT.MeasureItem listener [message #641623]

Fri, 26 November 2010 11:24

Stuart Ledwich

Messages: 10
Registered: November 2010

Junior Member

Currently when I add a MeasureItem listener to a SWT table or tree item I get a different result in windows and linux.

Currently linux appears to auto produce a treeitem that auto expands to the size of the content but on windows I get a consistent height of one line for the entire table.

If I then add a measureitem listener, again the effect is different. On windows I get ALL rows are resized to what appears to be the largest item. On linux it resizes exactly to the measurements given.

I have searched for this but cannot find any reason why this is happening.

Any help much appreciated.

Using SWT 3.5

Example of my listener to change the height:

		measureItemListener = new Listener() {
			public void handleEvent(Event event) {
				
				TreeItem item = (TreeItem)event.item;
				String text = item.getText(event.index);
				Point size = event.gc.textExtent(text);
				event.width = size.x + 2 * TEXT_MARGIN;
				event.height = size.y + TEXT_MARGIN;
			}
		};

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Re: Table/Tree Item SWT.MeasureItem listener [message #641957 is a reply to message #641623]

Mon, 29 November 2010 11:21

Lakshmi P Shanmugam

Messages: 279
Registered: July 2009
Location: India

Senior Member

Hi,

Are you trying to set multiline text in to your TableItem using setText()? The multiples lines aren't shown because Windows doesn't support this. You can have a look at this snippet which uses paintListener to draw multiple lines in the table item --> Snippet231

Lakshmi P Shanmugam

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