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Home » Eclipse Projects » Nebula » GridViewer - Getting notifed when a record gets invisible through vertical scrolling
GridViewer - Getting notifed when a record gets invisible through vertical scrolling [message #62902] Wed, 04 March 2009 13:50 Go to next message
Peter Pfeifer is currently offline Peter PfeiferFriend
Messages: 98
Registered: July 2009
Member
Hello there.

I'd like to get notified from the gridviewer when a record dissapears?
E.g my gridviewer displays 10 lines whereas the gridviewer input
consists of 20 lines. So when the user does a vertical scroll, each time
a record disappears from the visible range i'd like to get notifed.

is there a way to achieve this?

regards,

peter

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Re: GridViewer - Getting notifed when a record gets invisible through vertical scrolling [message #62904 is a reply to message #62902] Wed, 04 March 2009 15:09 Go to previous messageGo to next message
Thomas Schindl is currently offline Thomas SchindlFriend
Messages: 6651
Registered: July 2009
Senior Member
Hi Peter,

Yes there is. I'm using it to keep my image handle count down to a
minimum (I have viewer who show thounds of images). You need to use my
header_footer branch and there you'll find a class named
GridVisibleRangeSupport? It will inform you whenever the visible range
of cell has been changed.

I'm going to present those feature at EclipseCon in a short talk about
Nebula-Grid [1].

Tom

[1]http://www.eclipsecon.org/2009/sessions?id=571

Peter Pfeifer schrieb:
> Hello there.
>
> I'd like to get notified from the gridviewer when a record dissapears?
> E.g my gridviewer displays 10 lines whereas the gridviewer input
> consists of 20 lines. So when the user does a vertical scroll, each time
> a record disappears from the visible range i'd like to get notifed.
>
> is there a way to achieve this?
>
> regards,
>
> peter

Report message to a moderator

Re: GridViewer - Getting notifed when a record gets invisible through vertical scrolling [message #62906 is a reply to message #62904] Thu, 05 March 2009 10:41 Go to previous message
Peter Pfeifer is currently offline Peter PfeiferFriend
Messages: 98
Registered: July 2009
Member
thx a lot!

peter

Tom Schindl schrieb:
> Hi Peter,
>
> Yes there is. I'm using it to keep my image handle count down to a
> minimum (I have viewer who show thounds of images). You need to use my
> header_footer branch and there you'll find a class named
> GridVisibleRangeSupport? It will inform you whenever the visible range
> of cell has been changed.
>
> I'm going to present those feature at EclipseCon in a short talk about
> Nebula-Grid [1].
>
> Tom
>
> [1]http://www.eclipsecon.org/2009/sessions?id=571
>
> Peter Pfeifer schrieb:
>> Hello there.
>>
>> I'd like to get notified from the gridviewer when a record dissapears?
>> E.g my gridviewer displays 10 lines whereas the gridviewer input
>> consists of 20 lines. So when the user does a vertical scroll, each
>> time a record disappears from the visible range i'd like to get notifed.
>>
>> is there a way to achieve this?
>>
>> regards,
>>
>> peter

Report message to a moderator

Re: GridViewer - Getting notifed when a record gets invisible through vertical scrolling [message #593855 is a reply to message #62902] Wed, 04 March 2009 15:09 Go to previous message
Thomas Schindl is currently offline Thomas SchindlFriend
Messages: 6651
Registered: July 2009
Senior Member
Hi Peter,

Yes there is. I'm using it to keep my image handle count down to a
minimum (I have viewer who show thounds of images). You need to use my
header_footer branch and there you'll find a class named
GridVisibleRangeSupport? It will inform you whenever the visible range
of cell has been changed.

I'm going to present those feature at EclipseCon in a short talk about
Nebula-Grid [1].

Tom

[1]http://www.eclipsecon.org/2009/sessions?id=571

Peter Pfeifer schrieb:
> Hello there.
>
> I'd like to get notified from the gridviewer when a record dissapears?
> E.g my gridviewer displays 10 lines whereas the gridviewer input
> consists of 20 lines. So when the user does a vertical scroll, each time
> a record disappears from the visible range i'd like to get notifed.
>
> is there a way to achieve this?
>
> regards,
>
> peter

Report message to a moderator

Re: GridViewer - Getting notifed when a record gets invisible through vertical scrolling [message #593866 is a reply to message #62904] Thu, 05 March 2009 10:41 Go to previous message
Peter Pfeifer is currently offline Peter PfeiferFriend
Messages: 98
Registered: July 2009
Member
thx a lot!

peter

Tom Schindl schrieb:
> Hi Peter,
>
> Yes there is. I'm using it to keep my image handle count down to a
> minimum (I have viewer who show thounds of images). You need to use my
> header_footer branch and there you'll find a class named
> GridVisibleRangeSupport? It will inform you whenever the visible range
> of cell has been changed.
>
> I'm going to present those feature at EclipseCon in a short talk about
> Nebula-Grid [1].
>
> Tom
>
> [1]http://www.eclipsecon.org/2009/sessions?id=571
>
> Peter Pfeifer schrieb:
>> Hello there.
>>
>> I'd like to get notified from the gridviewer when a record dissapears?
>> E.g my gridviewer displays 10 lines whereas the gridviewer input
>> consists of 20 lines. So when the user does a vertical scroll, each
>> time a record disappears from the visible range i'd like to get notifed.
>>
>> is there a way to achieve this?
>>
>> regards,
>>
>> peter

Report message to a moderator

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