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GanttChart bug in Y calcul for Events in some configuration [message #830144]

Tue, 27 March 2012 08:51

Maxime Romand

Messages: 4
Registered: March 2012

Junior Member

Hello.

I'm a recent user of the GanttChart tool and I'd like to describe a bug I found.
I had a problem when I tried to display many events in GanttGroup and many GanttGroup in GanttSection.

GanttEvents were not displayed with the correct Y coordinate when the function setTopItem() was called. (

After some research, I found the (possible) cause of it.

GanttCompoisite.java :
in the method calculateAllScopes(final Rectangle bounds, final GanttSection gs).
lines 3356 and 3408

yDrawPos = groupLocations.get(ge.getGanttGroup()).intValue();

I don't know if the following patch is the good one but it solved my problem.

patch proposed :
yDrawPos = groupLocations.get(ge.getGanttGroup()).intValue() - _vScrollPos;

Best regards,

Maxime Romand

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Re: GanttChart bug in Y calcul for Events in some configuration [message #831345 is a reply to message #830144]

Wed, 28 March 2012 19:51

Wim Jongman

Messages: 493
Registered: July 2009

Senior Member

Hi Maxime,

thanks for reporting this. Please file a bug by clicking on this link [1]. Please also provide a snippet or a test case that exposes the bug.

Best regards,

Wim Jongman

[1] https://bugs.eclipse.org/bugs/enter_bug.cgi?product=Nebula&component=GanttChart

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