Specifying attachments properties fails

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Specifying attachments properties fails

ipstools.project
Hi all,

The text below is from documentation. The only difference is that the method #createText: is replaced by #createScrolledText: . After this change debugger popups saying he does not understand the  "leftAttachment".

At the same time description of this method states that "This resource is valid only when the receiver's parent is a CwForm." which is OK in my case.
Can somebody explain why this doesn`t work and propose the working example for scroled text? And thank you in advance.

| shell form drawing text |
 
shell := CwTopLevelShell
   createApplicationShell: 'shell'
   argBlock: [:w | w title: 'Form Example'].
 
form := shell
   createForm: 'form'
   argBlock: nil.
form manageChild.
 
drawing := form
   createDrawingArea: 'drawing'
   argBlock: [:w |
      w
         borderWidth: 1;
         width: 200;
         height: 200;
         leftAttachment: XmATTACHFORM;
         leftOffset: 2;
         rightAttachment: XmATTACHPOSITION;
         rightPosition: 67;
         topAttachment: XmATTACHFORM;
         topOffset: 2;
         bottomAttachment: XmATTACHFORM;
         bottomOffset: 2].
drawing manageChild.
 
text := form
   createScrolledText
: 'text'
   argBlock: [:w |
      w
         leftAttachment: XmATTACHWIDGET;
         leftWidget: drawing;
         leftOffset: 2;
         rightAttachment: XmATTACHFORM;
         rightOffset: 2;
         topAttachment: XmATTACHFORM;
         topOffset: 2;
         bottomAttachment: XmATTACHFORM;
         bottomOffset: 2].
text manageChild.
shell realizeWidget.

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Re: Specifying attachments properties fails

Seth Berman
Hello,

I think this concept comes from the original Motif specification, but a ScrolledText is really a ScrolledWindow composite which manages/decorates a Text.  It is the scrolled window that has the attachments to the form...not the text. 
Therefore in your modified example, the 'w' is a CwText...for attachment manipulation you want it's parent, the CwScrolledWindow, since that is the thing attached to the form.

Change '[:w | w leftAttachment.......'  to   '[:w | w parent leftAttachment........'

-- Seth  

On Wednesday, February 8, 2017 at 5:35:07 PM UTC-5, [hidden email] wrote:
Hi all,

The text below is from documentation. The only difference is that the method #createText: is replaced by #createScrolledText: . After this change debugger popups saying he does not understand the  "leftAttachment".

At the same time description of this method states that "This resource is valid only when the receiver's parent is a CwForm." which is OK in my case.
Can somebody explain why this doesn`t work and propose the working example for scroled text? And thank you in advance.

| shell form drawing text |
 
shell := CwTopLevelShell
   createApplicationShell: 'shell'
   argBlock: [:w | w title: 'Form Example'].
 
form := shell
   createForm: 'form'
   argBlock: nil.
form manageChild.
 
drawing := form
   createDrawingArea: 'drawing'
   argBlock: [:w |
      w
         borderWidth: 1;
         width: 200;
         height: 200;
         leftAttachment: XmATTACHFORM;
         leftOffset: 2;
         rightAttachment: XmATTACHPOSITION;
         rightPosition: 67;
         topAttachment: XmATTACHFORM;
         topOffset: 2;
         bottomAttachment: XmATTACHFORM;
         bottomOffset: 2].
drawing manageChild.
 
text := form
   createScrolledText
: 'text'
   argBlock: [:w |
      w
         leftAttachment: XmATTACHWIDGET;
         leftWidget: drawing;
         leftOffset: 2;
         rightAttachment: XmATTACHFORM;
         rightOffset: 2;
         topAttachment: XmATTACHFORM;
         topOffset: 2;
         bottomAttachment: XmATTACHFORM;
         bottomOffset: 2].
text manageChild.
shell realizeWidget.

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Re: Specifying attachments properties fails

ipstools.project

Hi Seth,

this worked for me perfectly and the explanation is very clean.
Thank you very much.

Sergei.

четверг, 9 февраля 2017 г., 2:36:52 UTC+3 пользователь Seth Berman написал:
Hello,

I think this concept comes from the original Motif specification, but a ScrolledText is really a ScrolledWindow composite which manages/decorates a Text.  It is the scrolled window that has the attachments to the form...not the text. 
Therefore in your modified example, the 'w' is a CwText...for attachment manipulation you want it's parent, the CwScrolledWindow, since that is the thing attached to the form.

Change '[:w | w leftAttachment.......'  to   '[:w | w parent leftAttachment........'

-- Seth  

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Re: Specifying attachments properties fails

Seth Berman
My pleasure to help Sergei, glad it worked.

On Thursday, February 9, 2017 at 6:43:24 AM UTC-5, [hidden email] wrote:

Hi Seth,

this worked for me perfectly and the explanation is very clean.
Thank you very much.

Sergei.

четверг, 9 февраля 2017 г., 2:36:52 UTC+3 пользователь Seth Berman написал:
Hello,

I think this concept comes from the original Motif specification, but a ScrolledText is really a ScrolledWindow composite which manages/decorates a Text.  It is the scrolled window that has the attachments to the form...not the text. 
Therefore in your modified example, the 'w' is a CwText...for attachment manipulation you want it's parent, the CwScrolledWindow, since that is the thing attached to the form.

Change '[:w | w leftAttachment.......'  to   '[:w | w parent leftAttachment........'

-- Seth  

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