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Bug 377149

Summary:	Impossible to use white color as a background color in the ViewerCell of a TreeViewer
Product:	[Eclipse Project] Platform	Reporter:	Julien Gouesse <gouessej>
Component:	SWT	Assignee:	Platform-SWT-Inbox <platform-swt-inbox>
Status:	RESOLVED WORKSFORME	QA Contact:
Severity:	normal
Priority:	P3	CC:	ericwill, gouessej
Version:	3.7.1	Keywords:	triaged
Target Milestone:	---
Hardware:	PC
OS:	Linux
Whiteboard:

Description Julien Gouesse

2012-04-19 03:58:13 EDT

Build Identifier: Version: 3.7.1 Build id: M20110909-1335

It is possible to modify the background color of the cells in a TreeViewer by several ways in its label provider:
- Override StyledCellLabelProvider.update(ViewerCell) and use ViewerCell.setBackground(Color)
- Implements the interface ITableColorProvider or IColorProvider

However, when using white (255, 255, 255) returned by Display.getSystemColor(SWT.WHITE), it does not work, the background is modified only for a few cells. This bug is reproducible with TableViewer too. The only workaround I found consists in using even a slightly different color (254, 254, 254).

Reproducible: Always

Steps to Reproduce:
1. Create a TreeViewer
2. Set its label provider so that it overrides StyledCellLabelProvider.update(ViewerCell) and sets the background color of the cell to Display.getDefault().getSystemColor(SWT.WHITE)
3. Add some input into this tree viewer

Comment 1 Eric Williams

2018-04-13 15:32:22 EDT

Is this still reproducible?

Comment 2 Eric Williams

2018-05-02 14:08:49 EDT

(In reply to Eric Williams from comment #1)
> Is this still reproducible?

Closing this ticket. Please file a new bug if the issue reproduces on 4.8 and GTK3.22.