Eclipse Community Forums: Graphiti » Sizing Multi-line text

Help

Home

Home » Modeling » Graphiti » Sizing Multi-line text

Show: Today's Messages :: Show Polls :: Message Navigator

Sizing Multi-line text [message #747830]

Mon, 24 October 2011 10:02

Adrian Mouat

Messages: 16
Registered: September 2011

Junior Member

One of my diagram elements takes a multi-line text input. I would like to resize the containing box to the appropriate size for the number of lines.

I thought text.getHeight() might have given the height of the of the text, but it seems to stay the same regardless of the text value.

Do I have to parse the value of the text to count the number of lines to do my resizing or is there a better way? Is there a programmatic way to get the line height?

Report message to a moderator

Re: Sizing Multi-line text [message #747868 is a reply to message #747830]

Mon, 24 October 2011 10:28

Christian B

Messages: 68
Registered: August 2011

Member

you might try GraphitiUi.getUiLayoutService().calculateTextSize(). Didn't test it, but could help Wink

Report message to a moderator

Re: Sizing Multi-line text [message #747921 is a reply to message #747868]

Mon, 24 October 2011 11:07

Adrian Mouat

Messages: 16
Registered: September 2011

Junior Member

Unfortunately, GraphitiUi.getUiLayoutService().calculateTextSize() seems to be broken. Height isn't affected by newlines, but width is!

Thanks for the pointer though.

Report message to a moderator

Re: Sizing Multi-line text [message #747968 is a reply to message #747921]

Mon, 24 October 2011 11:50

Adrian Mouat

Messages: 16
Registered: September 2011

Junior Member

It seems you can get (more or less) the correct height by:

IDimension dim = GraphitiUi.getUiLayoutService(
).calculateTextSize(
val, text.getFont());

int height = 2 + (dim.getHeight() * val.split("\n").length));

(I guess using "\n" is platform dependent and you should grab the correct value from properties though). The 2 at the start probably just represents the margin; I found the text was very slightly clipped if I didn't use it.

I'm not sure how to find the correct value for width Sad