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SWT 3.1.1 Tree TreeItem background color columns treetable [message #462107]

Thu, 06 October 2005 13:55

James Cornett

Messages: 3
Registered: July 2009

Junior Member

I am building a tree table using the new Tree functionality. When setting
the background on a TreeItem using SWT 3.1.1, only the item background color
in the Tree is set. The rest of the columns are not. In SWT 3.1.0, the
entire row background color was set.

The reason I need this to work is I have a recursive routine that alternates
row color, much like the behaviour of tables in GTK when showGrid is true.
I am using Windows, which of course shows a grid instead of alternating
colors. I call the routine after the tree is populated and when items are
expanded or collapsed.

Any answers to this problem are appretiated.

If anyone is interested, here is a snippet from my custom viewer:

int ri;

public void stripeRows(final TreeItem[] items)
{
ri = 0;
Display.getDefault().asyncExec(new Runnable() {

public void run()
{
traverseAndColor(items);
}

});
}

private void traverseAndColor(TreeItem[] items)
{
for (int i = 0; i < items.length; i++) {
TreeItem item = items[i];
if (ri % 2 == 0) {
item.setBackground(evenColor);
setControlsBackground(item, evenColor);
}
else {
item.setBackground(oddColor);
setControlsBackground(item, oddColor);
}
ri++;
if (item.getExpanded())
traverseAndColor(item.getItems());
}
}

private void setControlsBackground(TreeItem item, Color color)
{
if (item.getData() != null && item.getData() instanceof Control[]) {
Control[] controls = (Control[]) item.getData();
for (Control control : controls)
if (control != null) {
control.setBackground(color);
}
}
}

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Re: SWT 3.1.1 Tree TreeItem background color columns treetable [message #462122 is a reply to message #462107]

Thu, 06 October 2005 19:54

Billy Biggs

Messages: 94
Registered: July 2009

Member

James Cornett wrote:
> I am building a tree table using the new Tree functionality. When setting
> the background on a TreeItem using SWT 3.1.1, only the item background color
> in the Tree is set. The rest of the columns are not. In SWT 3.1.0, the
> entire row background color was set.

Sorry this became broken, I have filed this bug and the problem will
be fixed in the next maintenance release:

https://bugs.eclipse.org/bugs/show_bug.cgi?id=111836

-Billy

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