From: Nuralanur@...
Date: 2006-06-05T21:58:57+09:00
Subject: FXRuby: updating a text label/positioning question

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Dear all,
 
in a GUI, I want to display some text from inside a text file in a text  
field.
When starting the application, it looks roughly like this
 
################
#  filelist window   #
################
 
contents of file:
################
# text field            #
################
 
Now, as the user chooses some file from above, its text should
appear inside the text field (which it does) and the name of the
file should appear above it, changing
contents of file:   to contents of file: my_file.txt, if  that's
the name of the file.
I've searched the archive of the mailing lists, and found
a way to add a label , to recalc everything and to create the
whole frame anew:
 
class YourWidget < FXVerticalFrame
def  addLabel(parent,text)
FXLabel.new(parent, text) do  |label|
label.create
end
self.recalc
end
end
 
So I use :
 
class Mainwindow
  def initialize
     ...
    @header='contents of file'
    @topFrame = FXVerticalFrame.new(self,  LAYOUT_FILL_X|LAYOUT_FILL_Y)
@header_line=FXLabel.new(@topFrame,  @header, nil, LAYOUT_FILL_X)
...
 end
 def loadFile
  ....
  @header=self.addLabel(@topFrame,'Contents of file ' +  @filename)
...   
 end
 
end
 
but I can't change the content of @header in its original place. How could  
that
be done ?
 
Thank you very much!
 
Best regards,
 
AXel 

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