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GanttChart horizontal scroll fixed range [message #62957]

Mon, 23 March 2009 18:06

Matt Barry

Messages: 27
Registered: July 2009

Junior Member

The latest information I can find about the
GanttChart.H_SCROLL_FIXED_RANGE suggests there were known problems with it
last July. It does not seem to work for me, adding many years before and
after my event ranges. I am passing this bit mask as the constructor
style value. I have overridden settings
allowInfiniteHorizontalScrollBar() to return false as well. Are there any
tips or examples for making this work?

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Re: GanttChart horizontal scroll fixed range [message #63031 is a reply to message #62957]

Thu, 23 April 2009 20:46

Emil Crumhorn

Messages: 169
Registered: July 2009

Senior Member

Hi Matt,

I'm currently trying to fix the "fixed range" scrollbar, but it's proving to
be extremely difficult to get right. If you're interested I've attached a
picture simplifying the math needed to calculate the correct "range", and
some remaining issues.

So, it's being worked on but I don't have a timeframe right now apart from
as soon as possible.

Regards,
Emil

"Matt Barry" <mrbcuda@mac.com> wrote in message
news:8834a34340b505e445e51f29fe15bcce$1@www.eclipse.org...
> The latest information I can find about the
> GanttChart.H_SCROLL_FIXED_RANGE suggests there were known problems with it
> last July. It does not seem to work for me, adding many years before and
> after my event ranges. I am passing this bit mask as the constructor
> style value. I have overridden settings
> allowInfiniteHorizontalScrollBar() to return false as well. Are there any
> tips or examples for making this work?
>

Attachment: scrollbar_math.gif
(Size: 27.59KB, Downloaded 331 times)

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Re: GanttChart horizontal scroll fixed range [message #63159 is a reply to message #62957]

Tue, 28 April 2009 19:54

Emil Crumhorn

Messages: 169
Registered: July 2009

Senior Member

The latest nightly version (> 20090428) of the Gantt chart now has some much
improved fixed scrollbar code for anyone who is interested. It can be found
here:

http://www.hexapixel.com/files/nightly/

That code also fixes some issues with the D-day chart (partly improvements)
and refactors some calculation code out to separate classes.

Please report any issues found with it.

Cheers,
Emil

"Matt Barry" <mrbcuda@mac.com> wrote in message
news:8834a34340b505e445e51f29fe15bcce$1@www.eclipse.org...
> The latest information I can find about the
> GanttChart.H_SCROLL_FIXED_RANGE suggests there were known problems with it
> last July. It does not seem to work for me, adding many years before and
> after my event ranges. I am passing this bit mask as the constructor
> style value. I have overridden settings
> allowInfiniteHorizontalScrollBar() to return false as well. Are there any
> tips or examples for making this work?

Report message to a moderator

Re: GanttChart horizontal scroll fixed range [message #63350 is a reply to message #63159]

Thu, 30 April 2009 09:36

Laurent Marchal

Messages: 91
Registered: July 2009

Member

It's Working very well now !
+1 level in your math skills

Laurent.

Emil Crumhorn wrote:
> The latest nightly version (> 20090428) of the Gantt chart now has some much
> improved fixed scrollbar code for anyone who is interested. It can be found
> here:
>
> http://www.hexapixel.com/files/nightly/
>
> That code also fixes some issues with the D-day chart (partly improvements)
> and refactors some calculation code out to separate classes.
>
> Please report any issues found with it.
>
> Cheers,
> Emil
>
>
> "Matt Barry" <mrbcuda@mac.com> wrote in message
> news:8834a34340b505e445e51f29fe15bcce$1@www.eclipse.org...
>> The latest information I can find about the
>> GanttChart.H_SCROLL_FIXED_RANGE suggests there were known problems with it
>> last July. It does not seem to work for me, adding many years before and
>> after my event ranges. I am passing this bit mask as the constructor
>> style value. I have overridden settings
>> allowInfiniteHorizontalScrollBar() to return false as well. Are there any
>> tips or examples for making this work?
>
>
>

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