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How do i initialize a ViewPart ? [message #438730]

Mon, 24 October 2005 05:40

Eclipse User

Originally posted by: gkurien.icope.com

hi,
i have variable that i want to initialize in the View PArt but since i
can only open a view PArt by calling the find(View) method how do i use a
constructor to initialize some parameters ,before the view part create's
the layout...

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Re: How do i initialize a ViewPart ? [message #438750 is a reply to message #438730]

Mon, 24 October 2005 12:47

Paul Webster

Messages: 6859
Registered: July 2009
Location: Ottawa

Senior Member

Genu George wrote:
>
>
> hi,
> i have variable that i want to initialize in the View PArt but since i
> can only open a view PArt by calling the find(View) method how do i use
> a constructor to initialize some parameters ,before the view part
> create's the layout...
>

You can do that in the no-arguments constructor or the IViewPart#init()
method ... both are called before createControl()

Later,
PW

Paul Webster
http://wiki.eclipse.org/Platform_Command_Framework
http://wiki.eclipse.org/Command_Core_Expressions
http://wiki.eclipse.org/Menu_Contributions

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Re: How do i initialize a ViewPart ? [message #438777 is a reply to message #438750]

Tue, 25 October 2005 09:36

Eclipse User

Originally posted by: gkurien.icope.com

yes i understand that... but i cant pass a parameter to it right ? i
wanted to initialize it with a value that i pass from another class...

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Re: How do i initialize a ViewPart ? [message #438778 is a reply to message #438777]

Tue, 25 October 2005 12:26

Haris Peco

Messages: 1072
Registered: July 2009

Senior Member

Genu George wrote:

> yes i understand that... but i cant pass a parameter to it right ? i
> wanted to initialize it with a value that i pass from another class...

try use multiple view property (multipel="true" in extension point) and add
parameter secondary ID when you open view

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Re: How do i initialize a ViewPart ? [message #438835 is a reply to message #438777]

Wed, 26 October 2005 13:50

Paul Webster

Messages: 6859
Registered: July 2009
Location: Ottawa

Senior Member

Oh ...

Because of the way views are created (reference counted from a view
factory) they're constructed and initialized by the time
IWorkbenchPage#showView() returns your IViewPart. I see what you mean.

You have 2 options:

1. behave similarly to the Content Outline ... allow the view to create
in a default state, and once you have the view call
myView.setContents(MyContents) and allow it to be updated then.

2. Store the initialization information for your view somewhere else ...
like in the plugin. Then in IViewPart#init() method go back to your
plugin and initialize the internal variable from the plugin.

Later,
PW

Paul Webster
http://wiki.eclipse.org/Platform_Command_Framework
http://wiki.eclipse.org/Command_Core_Expressions
http://wiki.eclipse.org/Menu_Contributions

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Re: How do i initialize a ViewPart ? [message #438890 is a reply to message #438835]

Fri, 28 October 2005 07:31

Eclipse User

Originally posted by: gkurien.icope.com

You said ---
Store the initialization information for your view somewhere else ... like
in the plugin. Then in IViewPart#init() method go back to your plugin and
initialize the internal variable from the plugin.
---

can u give me an example how to do that ?

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Re: How do i initialize a ViewPart ? [message #438944 is a reply to message #438890]

Fri, 28 October 2005 13:32

Paul Webster

Messages: 6859
Registered: July 2009
Location: Ottawa

Senior Member

Genu George wrote:
> You said ---
> Store the initialization information for your view somewhere else ...
> like in the plugin. Then in IViewPart#init() method go back to your
> plugin and initialize the internal variable from the plugin.
> ---
>
> can u give me an example how to do that ?
>

the unoptimized way is:

Say your action is opening the view:

ActionDelegate
public void run() {
Map options = TestPlugin.getOptions(MY_VIEW_ID);
options.clear();
options.put(VIEW_INFO, "SLOW_VIEW");
}

MyViewPart
public void init(IViewSite s) {
super(s);
Map options = TestPlugin.getOptions(MY_VIEW_ID);
goSlow = "SLOW_VIEW".equals(options.get(VIEW_INFO));
}

You'd have to make sure that the code is safe, but basically that's one way.

Later,
PW

Paul Webster
http://wiki.eclipse.org/Platform_Command_Framework
http://wiki.eclipse.org/Command_Core_Expressions
http://wiki.eclipse.org/Menu_Contributions

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Re: How do i initialize a ViewPart ? [message #438954 is a reply to message #438777]

Fri, 28 October 2005 14:13

Nick Edgar

Messages: 439
Registered: July 2009

Senior Member

See also
https://bugs.eclipse.org/bugs/show_bug.cgi?id=82621

Genu George wrote:
> yes i understand that... but i cant pass a parameter to it right ? i
> wanted to initialize it with a value that i pass from another class...

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Re: How do i initialize a ViewPart ? [message #899737 is a reply to message #438835]

Thu, 02 August 2012 07:33

Allan Zarsuela

Messages: 5
Registered: April 2012

Junior Member

I have the same problem. I need to pass a value to ViewPart's variable from the class that implements IIntroAction. For example the variable is transactType and the parameter value is "create"; this should signal the ViewPart to pop up a dialog. Else no dialog will show. I can't make the code run where I use my own plugin name to replace TestPlugin. Any idea about the given code?

>ActionDelegate
>public void run() {
>Map options = TestPlugin.getOptions(MY_VIEW_ID);
>options.clear();
>options.put(VIEW_INFO, "SLOW_VIEW");
>}

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