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Re: Custom editor development [message #389888]

Thu, 09 December 2004 09:25

Eclipse User

Originally posted by: emmerich.salt.ac.za

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From a previous posting entitled "Custom editor development" by Sugato
Bagchi on 2004/04/19 19:34 
[Sugato]
<blockquote cite="midc612af$rv1$2@eclipse.org" type="cite">
<pre wrap="">Is there an example that shows how the EMF generated editor could be
customized? For example, I would like to create a tree editor page that has
a different tree representation than the one deduced from the UML
containment structure.
</pre>
</blockquote>
[Roy] 
A little bit of background. Let me explain what I'm trying to do. I'm
writing an astronomical application for the Southern African Large
Telescope <a class="moz-txt-link-rfc2396E" href="http://www.salt.ac.za"><http://www.salt.ac.za></a> which will basically edit an
RTML file (Remote Telescope
Markup Language <<a class="moz-txt-link-abbreviated"
href="http://www.rtml.de">http://www.rtml.de</a>>). So I have a
well defined schema. According to the RTML schema a valid XML document
could look something like this (simplified): 
 
<RTML version="3.0f"> 
  <History> 
  </History> 
  <Project> 
  </Project> 
  <Target name="abc"> 
  </Target> 
  <Target name="xyz"> 
  </Target> 
</RTML> 
 
How I want this to be depicted in my tree viewer is like this: 
 
Proposal  (representing the <RTML> tag. Will show <History> & <Project>
tags combined in custom property page) 
 
'-- Targets  (a phantom object) 
         |-- abc  (1:1
mapping with a target) 
         '-- xyz  (1:1
mapping with a target) 
 
The phantom object idea I got from the "Providing content
for an EMF model" section of the EMF.Edit Framework Overview 
<a class="moz-txt-link-rfc2396E"
href=" http://download.eclipse.org/tools/emf/scripts/docs.php?doc=r eferences/overview/EMF.Edit.html "> <http://download.eclipse.org/tools/emf/scripts/docs.p hp?doc=references/overview/EMF.Edit.html> </a> 
 
From a previous posting entitled "[newbie] Supressing one level of
objects in a tree view" by Paul Trevithick on 2004/09/10 04:15 I've
managed to figure out how to suppress the <History>
& <Project> tags in the tree
view. 
 
My questions: 
1. How do I insert the phantom Targets
item programatically into the treeviewer upon opening an existing RTML
file or upon the creation of a new one? 
2. What form must this phantom object take? Should I manually create a TargetsItemProvider? From the EMF.Edit
Framework Overview it claims that it can be any java Object. I'm assuming it must at least implement
ITreeItemContentProvider to be visible in
the treeviewer? Suggestions? 
3. When a user right clicks on the Targets
item in the treeviewer I need it to display to the user that they can
create a new target as a child of Targets. I
assume that to add this behaviour I need to be delving into the ActionBarContributer in the .editor code? Any
other tips (I admit I haven't done much trawling on this subject but I
assume if there isn't much about phantom objects there won't be much
about this) 
 
Many thanks for your time. It's a great newsgroup and a fantastic
framework! 
 
Roy 
<pre class="moz-signature" cols="72">--
Roy Emmerich
Software Engineer
SALT - Southern African Large Telescope
emmerich(at)salt.ac.za (email)
<a class="moz-txt-link-abbreviated" href="http://www.salt.ac.za">www.salt.ac.za</a> (web)
</pre>
</body>
</html>

Re: Custom editor development [message #389890 is a reply to message #389888]

Thu, 09 December 2004 11:02

Eclipse User

Hi Roy,

I may be able to help a little bit here. If you have a copy of the book
"eclipse modeling framework", then section "14.2.3 Adding Non-Model
Intermediary View Objects" will be of great benefit. It describes the
necessary modifications to the generated item providers.

One approach that I have used whenever I need a content structure that has
significant changes from the structure implied by the model is to write a
custom-crafted content provider, while keeping the default (EMF generated)
label provider. This has the quickest turnaround time and allows very
complex customization with ease. The downside is that you don't get the
drag-and-drop, add child, and add sibling functionality out of the box.

-amin

Roy Emmerich wrote:

> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
> <html>
> <head>
> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
> <title></title>
> </head>
> <body bgcolor="#ffffff" text="#000000">
> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
> <title></title>
> From a previous posting entitled "Custom editor development" by Sugato
> Bagchi on 2004/04/19 19:34 
> [Sugato]
> <blockquote cite="midc612af$rv1$2@eclipse.org" type="cite">
> <pre wrap="">Is there an example that shows how the EMF generated editor
could be
> customized? For example, I would like to create a tree editor page that has
> a different tree representation than the one deduced from the UML
> containment structure.
> </pre>
> </blockquote>
> [Roy] 
> A little bit of background. Let me explain what I'm trying to do. I'm
> writing an astronomical application for the Southern African Large
> Telescope <a class="moz-txt-link-rfc2396E"
href="http://www.salt.ac.za"><http://www.salt.ac.za></a> which will basically
edit an
> RTML file (Remote Telescope
> Markup Language <<a class="moz-txt-link-abbreviated"
> href="http://www.rtml.de">http://www.rtml.de</a>>). So I have a
> well defined schema. According to the RTML schema a valid XML document
> could look something like this (simplified): 
> 
> <RTML version="3.0f"> 
> <History> 
> </History> 
> <Project> 
> </Project> 
> <Target name="abc"> 
> </Target> 
> <Target name="xyz"> 
> </Target> 
> </RTML> 
> 
> How I want this to be depicted in my tree viewer is like this: 
> 
> Proposal (representing the color="#ff0000"><RTML> tag. Will show color="#9999ff"><History> & <Project>
> tags combined in custom property page) 
>
> '-- Targets (a phantom object) 
> |-- abc (1:1
> mapping with a target) 
> '-- xyz color="#3333ff">(1:1
> mapping with a target) 
> 
> The phantom object idea I got from the "Providing content
> for an EMF model" section of the EMF.Edit Framework Overview 
> <a class="moz-txt-link-rfc2396E"
>
href=" http://download.eclipse.org/tools/emf/scripts/docs.php?doc=r eferences/overview/EMF.Edit.html ">< http://download.eclipse.org/tools/emf/scripts/docs.php?doc=r eferences/overview/EMF.Edit.html ></a> 
> 
> From a previous posting entitled "[newbie] Supressing one level of
> objects in a tree view" by Paul Trevithick on 2004/09/10 04:15 I've
> managed to figure out how to suppress the <History>
> & <Project> tags in the tree
> view. 
> 
> My questions: 
> 1. How do I insert the phantom Targets
> item programatically into the treeviewer upon opening an existing RTML
> file or upon the creation of a new one? 
> 2. What form must this phantom object take? Should I manually create a color="#cc0000">TargetsItemProvider? From the EMF.Edit
> Framework Overview it claims that it can be any java color="#cc0000">Object. I'm assuming it must at least implement
> ITreeItemContentProvider to be visible in
> the treeviewer? Suggestions? 
> 3. When a user right clicks on the color="#000000">Targets
> item in the treeviewer I need it to display to the user that they can
> create a new target as a child of color="#000000">Targets. I
> assume that to add this behaviour I need to be delving into the color="#cc0000">ActionBarContributer in the .editor code? Any
> other tips (I admit I haven't done much trawling on this subject but I
> assume if there isn't much about phantom objects there won't be much
> about this) 
> 
> Many thanks for your time. It's a great newsgroup and a fantastic
> framework! 
> 
> Roy 
> <pre class="moz-signature" cols="72">--
> Roy Emmerich
> Software Engineer
> SALT - Southern African Large Telescope
> emmerich(at)salt.ac.za (email)
> <a class="moz-txt-link-abbreviated"
href="http://www.salt.ac.za">www.salt.ac.za</a> (web)
> </pre>
> </body>
> </html>

Re: Custom editor development [message #389908 is a reply to message #389888]

Fri, 10 December 2004 09:48

Eclipse User

This is a multi-part message in MIME format.
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Roy,

As Amin explains, the book has good details on this. The basic idea is
to use a derived version of the ProposalItemProvider to represent the
hand written TargetsItemProvider. It can already show Targets children
just how you want, and you only need to change the label and suppress
some of the things you don't want.

Roy Emmerich wrote:

> From a previous posting entitled "Custom editor development" by Sugato
> Bagchi on 2004/04/19 19:34
> [Sugato]
>
>>Is there an example that shows how the EMF generated editor could be
>>customized? For example, I would like to create a tree editor page that has
>>a different tree representation than the one deduced from the UML
>>containment structure.
>>
>>
> [Roy]
> A little bit of background. Let me explain what I'm trying to do. I'm
> writing an astronomical application for the Southern African Large
> Telescope <http://www.salt.ac.za> which will basically edit an RTML
> file (Remote Telescope Markup Language <http://www.rtml.de>). So I
> have a well defined schema. According to the RTML schema a valid XML
> document could look something like this (simplified):
>
> <RTML version="3.0f">
> <History>
> </History>
> <Project>
> </Project>
> <Target name="abc">
> </Target>
> <Target name="xyz">
> </Target>
> </RTML>
>
> How I want this to be depicted in my tree viewer is like this:
>
> Proposal (representing the <RTML> tag. Will show <History> &
> <Project> tags combined in custom property page)
> '-- Targets (a phantom object)
> |-- abc (1:1 mapping with a target)
> '-- xyz (1:1 mapping with a target)
>
> The phantom object idea I got from the "Providing content for an EMF
> model" section of the EMF.Edit Framework Overview
> < http://download.eclipse.org/tools/emf/scripts/docs.php?doc=r eferences/overview/EMF.Edit.html >
>
> From a previous posting entitled "[newbie] Supressing one level of
> objects in a tree view" by Paul Trevithick on 2004/09/10 04:15 I've
> managed to figure out how to suppress the <History> & <Project> tags
> in the tree view.
>
> My questions:
> 1. How do I insert the phantom Targets item programatically into the
> treeviewer upon opening an existing RTML file or upon the creation of
> a new one?
> 2. What form must this phantom object take? Should I manually create a
> TargetsItemProvider? From the EMF.Edit Framework Overview it claims
> that it can be any java Object. I'm assuming it must at least
> implement ITreeItemContentProvider to be visible in the treeviewer?
> Suggestions?
> 3. When a user right clicks on the Targets item in the treeviewer I
> need it to display to the user that they can create a new target as a
> child of Targets. I assume that to add this behaviour I need to be
> delving into the ActionBarContributer in the .editor code? Any other
> tips (I admit I haven't done much trawling on this subject but I
> assume if there isn't much about phantom objects there won't be much
> about this)
>
> Many thanks for your time. It's a great newsgroup and a fantastic
> framework!
>
> Roy
>
>--
>Roy Emmerich
>Software Engineer
>SALT - Southern African Large Telescope
>emmerich(at)salt.ac.za (email)
>www.salt.ac.za (web)
>
>

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<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
Roy, 
 
As Amin explains, the book has good details on this.  The basic idea is
to use a derived version of the ProposalItemProvider to represent the
hand written TargetsItemProvider.  It can already show Targets children
just how you want, and you only need to change the label and suppress
some of the things you don't want. 
 
 
Roy Emmerich wrote:
<blockquote cite="midcp9n9e$6na$1@www.eclipse.org" type="cite">
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
<title></title>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
<title></title>
From a previous posting entitled "Custom editor development" by Sugato
Bagchi on 2004/04/19 19:34 
[Sugato]
<blockquote cite="midc612af$rv1$2@eclipse.org" type="cite">
<pre wrap="">Is there an example that shows how the EMF generated editor could be
customized? For example, I would like to create a tree editor page that has
a different tree representation than the one deduced from the UML
containment structure.
</pre>
</blockquote>
[Roy] 
A little bit of background. Let me explain what I'm trying to do. I'm
writing an astronomical application for the Southern African Large
Telescope <a class="moz-txt-link-rfc2396E" href="http://www.salt.ac.za"><http://www.salt.ac.za></a>
which will basically edit an
RTML file (Remote Telescope
Markup Language <<a class="moz-txt-link-abbreviated"
href="http://www.rtml.de">http://www.rtml.de</a>>). So I have a
well defined schema. According to the RTML schema a valid XML document
could look something like this (simplified): 
 
<RTML version="3.0f"> 
  <History> 
  </History> 
  <Project> 
  </Project> 
  <Target name="abc"> 
  </Target> 
  <Target name="xyz"> 
  </Target> 
</RTML> 
 
How I want this to be depicted in my tree viewer is like this: 
 
Proposal  (representing the <RTML> tag. Will show <History> & <Project>
tags combined in custom property page) 
 
'-- Targets  (a phantom object) 
         |-- abc  (1:1
mapping with a target) 
         '-- xyz  (1:1
mapping with a target) 
 
The phantom object idea I got from the "Providing content
for an EMF model" section of the EMF.Edit Framework Overview 
<a class="moz-txt-link-rfc2396E"
href=" http://download.eclipse.org/tools/emf/scripts/docs.php?doc=r eferences/overview/EMF.Edit.html "> <http://download.eclipse.org/tools/emf/scripts/docs.p hp?doc=references/overview/EMF.Edit.html> </a> 
 
From a previous posting entitled "[newbie] Supressing one level of
objects in a tree view" by Paul Trevithick on 2004/09/10 04:15 I've
managed to figure out how to suppress the <History>
& <Project> tags in the tree
view. 
 
My questions: 
1. How do I insert the phantom Targets
item programatically into the treeviewer upon opening an existing RTML
file or upon the creation of a new one? 
2. What form must this phantom object take? Should I manually create a TargetsItemProvider? From the EMF.Edit
Framework Overview it claims that it can be any java Object. I'm assuming it must at least implement
ITreeItemContentProvider to be visible
in
the treeviewer? Suggestions? 
3. When a user right clicks on the Targets
item in the treeviewer I need it to display to the user that they can
create a new target as a child of Targets. I
assume that to add this behaviour I need to be delving into the ActionBarContributer in the .editor code? Any
other tips (I admit I haven't done much trawling on this subject but I
assume if there isn't much about phantom objects there won't be much
about this) 
 
Many thanks for your time. It's a great newsgroup and a fantastic
framework! 
 
Roy 
<pre class="moz-signature" cols="72">--
Roy Emmerich
Software Engineer
SALT - Southern African Large Telescope
emmerich(at)salt.ac.za (email)
<a class="moz-txt-link-abbreviated" href="http://www.salt.ac.za">www.salt.ac.za</a> (web)
</pre>
</blockquote>
 
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