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SnapToGuides.KEY_VERTICAL_GUIDE never set in >>request.getExtendedData()<< [message #166714]

Wed, 02 February 2005 22:43

Andreas Herz

Messages: 196
Registered: July 2009

Senior Member

Hi

I try to implement the snapToGuide feature in my GEF Editor.
Now I have some trouble with them and need help.

1.
==----==

I have copied the code for the SnapTo'G..' in the logic simulator GEF example.

- I see the ruler at the left and the top of my Editor
- I can insert/remove Guides.
- I can move these Guides.

BUT(!!) I don't know how to attach an edit part/model to this Guid's.
The code in the >>My_XYLayoutEditPolicy<< checks an attribute of the
request to determine a possible Guid - but the variable *(guidePos* is always null.
(see code snipet below)

I can't find the code to set the extendedData in the request.

2.
==----==

The Guid at the left draws a horizontal line and the Guide at top draws
a horizontal(!) line too!

==----==

Any idea?!!!

greetings
Andreas

============================================================ ==========================
....SNIPP.....
============================================================ ==========================

protected Command chainGuideAttachmentCommand(Request request, UIGroupElementModel part,
Command cmd, boolean horizontal)
{
Command result = cmd;
// Attach to guide, if one is given
Integer guidePos = (Integer)request.getExtendedData().get(horizontal ?
SnapToGuides.KEY_HORIZONTAL_GUIDE : SnapToGuides.KEY_VERTICAL_GUIDE);
if (guidePos != null)
{
int alignment = ((Integer)request.getExtendedData().get(horizontal ?
snapToGuides.KEY_HORIZONTAL_ANCHOR :
SnapToGuides.KEY_VERTICAL_ANCHOR)).intValue();
ChangeGuideCommand cgm = new ChangeGuideCommand(part, horizontal);
cgm.setNewGuide(findGuideAt(guidePos.intValue(), horizontal), alignment);
result = result.chain(cgm);
}
return result;
}
============================================================ ==========================
....SNAPP.....
============================================================ ==========================

Report message to a moderator

Re: SnapToGuides.KEY_VERTICAL_GUIDE never set in >>request.getExtendedData()<< [message #166738 is a reply to message #166714]

Thu, 03 February 2005 00:43

Pratik Shah

Messages: 1077
Registered: July 2009

Senior Member

1. Does your DiagramEditPart return a SnapToGuides helper in its
getAdapter() method? Look at LogicDiagramEditPart#getAdapter().

2. Not sure what would be causing this. The guide still appears on the top
ruler, right? Just the guide line that is added to the main graphical
viewer is horizontal? Try stepping through the code.

"FreeGroup" <a.herz@FreeGroup.de> wrote in message
news:ctrl5r$orf$1@www.eclipse.org...
> Hi
>
> I try to implement the snapToGuide feature in my GEF Editor.
> Now I have some trouble with them and need help.
>
> 1.
> ==----==
>
> I have copied the code for the SnapTo'G..' in the logic simulator GEF
example.
>
> - I see the ruler at the left and the top of my Editor
> - I can insert/remove Guides.
> - I can move these Guides.
>
> BUT(!!) I don't know how to attach an edit part/model to this Guid's.
> The code in the >>My_XYLayoutEditPolicy<< checks an attribute of the
> request to determine a possible Guid - but the variable *(guidePos* is
always null.
> (see code snipet below)
>
> I can't find the code to set the extendedData in the request.
>
> 2.
> ==----==
>
> The Guid at the left draws a horizontal line and the Guide at top draws
> a horizontal(!) line too!
>
> ==----==
>
>
> Any idea?!!!
>
>
> greetings
> Andreas
>
>
============================================================ ================
==========
> ....SNIPP.....
>
============================================================ ================
==========
>
> protected Command chainGuideAttachmentCommand(Request request,
UIGroupElementModel part,
> Command cmd, boolean
horizontal)
> {
> Command result = cmd;
> // Attach to guide, if one is given
> Integer guidePos = (Integer)request.getExtendedData().get(horizontal ?
> SnapToGuides.KEY_HORIZONTAL_GUIDE :
SnapToGuides.KEY_VERTICAL_GUIDE);
> if (guidePos != null)
> {
> int alignment = ((Integer)request.getExtendedData().get(horizontal ?
> snapToGuides.KEY_HORIZONTAL_ANCHOR :
> SnapToGuides.KEY_VERTICAL_ANCHOR)).intValue();
> ChangeGuideCommand cgm = new ChangeGuideCommand(part, horizontal);
> cgm.setNewGuide(findGuideAt(guidePos.intValue(), horizontal),
alignment);
> result = result.chain(cgm);
> }
> return result;
> }
>
============================================================ ================
==========
> ....SNAPP.....
>
============================================================ ================
==========

Report message to a moderator

ha!!! perfect :-) *jubel* [message #166791 is a reply to message #166738]

Thu, 03 February 2005 09:17

Andreas Herz

Messages: 196
Registered: July 2009

Senior Member

Pratik Shah wrote:
> 1. Does your DiagramEditPart return a SnapToGuides helper in its
> getAdapter() method? Look at LogicDiagramEditPart#getAdapter().
>
> 2. Not sure what would be causing this. The guide still appears on the top
> ruler, right? Just the guide line that is added to the main graphical
> viewer is horizontal? Try stepping through the code.
>
> "FreeGroup" <a.herz@FreeGroup.de> wrote in message
> news:ctrl5r$orf$1@www.eclipse.org...
>
>>Hi
>>
>>I try to implement the snapToGuide feature in my GEF Editor.
>>Now I have some trouble with them and need help.
>>
>>1.
>>==----==
>>
>>I have copied the code for the SnapTo'G..' in the logic simulator GEF
>
> example.
>
>> - I see the ruler at the left and the top of my Editor
>> - I can insert/remove Guides.
>> - I can move these Guides.
>>
>>BUT(!!) I don't know how to attach an edit part/model to this Guid's.
>>The code in the >>My_XYLayoutEditPolicy<< checks an attribute of the
>>request to determine a possible Guid - but the variable *(guidePos* is
>
> always null.
>
>>(see code snipet below)
>>
>>I can't find the code to set the extendedData in the request.
>>
>>2.
>>==----==
>>
>>The Guid at the left draws a horizontal line and the Guide at top draws
>>a horizontal(!) line too!
>>
>>==----==
>>
>>
>>Any idea?!!!
>>
>>
>>greetings
>> Andreas
>>
>>
>
> ============================================================ ================
> ==========
>
>> ....SNIPP.....
>>
>
> ============================================================ ================
> ==========
>
>>protected Command chainGuideAttachmentCommand(Request request,
>
> UIGroupElementModel part,
>
>> Command cmd, boolean
>
> horizontal)
>
>>{
>> Command result = cmd;
>> // Attach to guide, if one is given
>> Integer guidePos = (Integer)request.getExtendedData().get(horizontal ?
>> SnapToGuides.KEY_HORIZONTAL_GUIDE :
>
> SnapToGuides.KEY_VERTICAL_GUIDE);
>
>> if (guidePos != null)
>> {
>> int alignment = ((Integer)request.getExtendedData().get(horizontal ?
>> snapToGuides.KEY_HORIZONTAL_ANCHOR :
>> SnapToGuides.KEY_VERTICAL_ANCHOR)).intValue();
>> ChangeGuideCommand cgm = new ChangeGuideCommand(part, horizontal);
>> cgm.setNewGuide(findGuideAt(guidePos.intValue(), horizontal),
>
> alignment);
>
>> result = result.chain(cgm);
>> }
>> return result;
>>}
>>
>
> ============================================================ ================
> ==========
>
>> ....SNAPP.....
>>
>
> ============================================================ ================
> ==========
>
>

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