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TreeViewer - setGrayed method [message #501176]

Tue, 01 December 2009 07:38

Eclipse User

Hi All,
Method TreeItem#setGrayed() doesn't correct work in rap 1.3. Item doesn't change it background color to gray. In rap 1.2 all was ok.

Re: TreeViewer - setGrayed method [message #501407 is a reply to message #501176]

Wed, 02 December 2009 03:52

Eclipse User

Hi Andrew,

the TreeItem#setGrayed() is not intended to change the item background color to gray. According to JavaDoc:
"Sets the grayed state of the checkbox for this item. This state change only applies if the Tree was created with the SWT.CHECK style."
It's working as expected in 1.3 and there is no change in comparison to 1.2.

Best,
Ivan

Re: TreeViewer - setGrayed method [message #501449 is a reply to message #501407]

Wed, 02 December 2009 07:03

Eclipse User

Sorry, i made a mistake. TableItem doesn't change it background color if table was created with SWT.CHECK style.
You can see different behavior of it in demo of rap 1.2 release and rap 1.3 M3 on TableTab by pressing "Change grayed for selection" button.

Re: TreeViewer - setGrayed method [message #501454 is a reply to message #501449]

Wed, 02 December 2009 07:32

Eclipse User

Andrew,
the correct behavior of Table/TreeItem#setGrayed( boolean ) is the one in 1.3. The grayed state of the checkbox is applied only for checked checkboxes. For unchecked checkboxes there is no visual difference. This is the same in SWT too.
Best,
Ivan

Re: TreeViewer - setGrayed method [message #501623 is a reply to message #501454]

Thu, 03 December 2009 02:58

Eclipse User

Ok, thx. Is it possible to change bg color of tableItem for unchecked checkboxes without patching src ? (I'd like to have tableItem's with SWT.CHECK style which has not white bg color in unchecked state).

Re: TreeViewer - setGrayed method [message #501630 is a reply to message #501623]

Thu, 03 December 2009 03:14

Eclipse User

Andrew,
you need to create a custom theme (see [1] and [2]) and specify the grayed image for Table-Checkbox like:
Table-Checkbox:grayed {
background-image: url( ... );
}
Table-Checkbox:checked:grayed {
background-image: url( ... );
}

[1] http://help.eclipse.org/galileo/topic/org.eclipse.rap.help/h elp/html/advanced/theming.html
[2] http://help.eclipse.org/galileo/topic/org.eclipse.rap.help/h elp/html/advanced/branding.html

HTH,
Ivan

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