Bug 560162

Summary:	GridLayout does not handle GridData.exclude correctly
Product:	[Eclipse Project] Platform	Reporter:	Patrick Tasse <patrick.tasse>
Component:	SWT	Assignee:	Platform-SWT-Inbox <platform-swt-inbox>
Status:	NEW ---	QA Contact:
Severity:	normal
Priority:	P3
Version:	4.15
Target Milestone:	---
Hardware:	PC
OS:	Linux
Whiteboard:

Description Patrick Tasse

2020-02-14 11:26:00 EST

In GridLayout.layout(), a Control[] of children is built.

Any Control that has GridData.exclude==true is removed from this array, the subsequent controls are shifted down in the array, and the count is decremented.

But later when building the Control[][] grid, this exclusion is not taken into account.

So if the first Control in row 0, column 0 is excluded, then in the grid the Control in row 0, column 1 takes its place, and this second Control's layout data is used for the purposes of layout of the column 0.

Things do not end well.