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EditPart resize on children setVisible [message #897259]

Mon, 23 July 2012 08:40

ModelGeek Mising name is currently offline

ModelGeek Mising name
Messages: 351
Registered: June 2011

Senior Member

Hi,

I have a editpart with multiple children. When i hide children using setVisible method the editpart does not resize. I want it to decrease size when children are hidden and increase size when chidren are visible.

I have tried repaint and revalidate method but it does not change size.

Any idea?

Cheers,

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Re: EditPart resize on children setVisible [message #897317 is a reply to message #897259]

Mon, 23 July 2012 11:02

Jan Krakora
Messages: 402
Registered: December 2009
Location: Prague

Senior Member

Hi, could you post some code here?

Changing the size is about the validation and setVisible on a Figure kicks the validation process for you.

So basically there are two options

You have a layout manager on the parent and you're doing something wrong with its constraints
You don't have any layout manager on the parent and you have to set the bounds manually

[Updated on: Mon, 23 July 2012 11:03]

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Re: EditPart resize on children setVisible [message #897499 is a reply to message #897317]

Tue, 24 July 2012 06:07

ModelGeek Mising name
Messages: 351
Registered: June 2011

Senior Member

Here is code snippt from figure's constructor

ToolbarLayout layout = new ToolbarLayout();
layout.setSpacing(2);
setLayoutManager(layout);
labelName.setForegroundColor(ColorConstants.darkGray);
labelName.setFont(new Font(PlatformUI.getWorkbench

className.setForegroundColor(ColorConstants.darkGray);
className.setFont(new Font(PlatformUI.getWorkbench

add(labelName, ToolbarLayout.ALIGN_CENTER);
add(className, ToolbarLayout.ALIGN_CENTER);

setBorder(new LineBorder(1));
setOpaque(true);

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Re: EditPart resize on children setVisible [message #897523 is a reply to message #897499]

Tue, 24 July 2012 08:02

Jan Krakora
Messages: 402
Registered: December 2009
Location: Prague

Senior Member

What is this figure? It's the parent figure?
How do you get the visible state and where and how do you set it?

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Re: EditPart resize on children setVisible [message #897526 is a reply to message #897523]

Tue, 24 July 2012 08:11

ModelGeek Mising name
Messages: 351
Registered: June 2011

Senior Member

This was parent figure.

Child figure which is being hidden is

FlowLayout layout = new FlowLayout();
layout.setMinorAlignment(FlowLayout.ALIGN_LEFTTOP);
layout.setHorizontal(false);
setLayoutManager(layout);
labelName.setForegroundColor(ColorConstants.darkGray);
add(labelName, ToolbarLayout.ALIGN_CENTER);
setForegroundColor(ColorConstants.darkGray);

I have a hashtable which contains the references to all editparts and have one method in editpart to show/hide contains following statement.

getFigure().setVisible(visible);

thanks for assistance

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Re: EditPart resize on children setVisible [message #897567 is a reply to message #897526]

Tue, 24 July 2012 10:10

Jan Krakora
Messages: 402
Registered: December 2009
Location: Prague

Senior Member

And the figure being invisible is getting invisible, but the parent has the same size, so there is a "hole", right?

Well, I think the parent figure's layout manager (ToolBarLayout) asks the child figure's layout manager (FlowLayout) for the child figure's preferred size.
And since it doesn't take the visible state into account, it returns the same size as if the figure was visible.

Could you remove/add the figure from the parent figure instead of setting it invisible?

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