2011/4/1 hendra kusuma <penguinroad@gmail.com>:
> Dear all
>
> Sorry to ask this, I know I can find some of answers in doc if I dig deeper
> But I'm tight on schedule, So please reply if you are willing to
>
> 1. How to change font size in label and entry widget ?

Take a look at http://ruby-gnome2.sourceforge.jp/hiki.cgi?Gtk::Label
My tests:
Gtk::Label#set_markup('<span size="x-large">toto</span>')  works
Gtk::Label#set_markup('<span size="32">toto</span>')  does not work
(Is it a bug??)

> 2. How to differentiate color in treeview row (odd grey, even white or vice
> versa) ?

http://ruby-gnome2.sourceforge.jp/hiki.cgi?tut-tre...

> 3. How to make anything typed on entry become uppercase ?

You can convert entry text to uppercase when it is activated.
Or do you really need to convert each letter when it is typed ?

> 4. How to right align column in treeview? also center-align?

http://ruby-gnome2.sourceforge.jp/hiki.cgi?Gtk::Ce...

>
>
>



--
Vincent Carmona

hendra kusuma wrote in post #990384:


> 1. How to change font size in label and entry widget ?

  it's easy enough to implement a file chooser dialog where you can
choose the font and size...
http://ruby-gnome2.sourceforge.jp/de/hiki.cgi?Gtk:...

  and a color selection dialog...
http://ruby-gnome2.sourceforge.jp/it/hiki.cgi?Gtk:...

  ...and then use them in your pango markup.... for example:

def fontSelect
  d = Gtk::FontSelectionDialog.new
  d.set_font_name(@font) if @font != nil
  response = d.run
  if response == Gtk::Dialog::RESPONSE_OK
   @font = d.font_name
#   fontdesc = Pango::FontDescription.new(@font)
#  @fontBtn.modify_font(fontdesc)  #
#  @fontBtn.set_label(@font)       # these are specific to my app
  end
  d.destroy
end  #fontSelect

def fontColorSelect
  d = Gtk::ColorSelectionDialog.new
  sel = d.colorsel
#  sel.set_previous_color(@fC)
#  sel.set_current_color(@fC)
  sel.set_has_palette(true)
  response = d.run

  if response == Gtk::Dialog::RESPONSE_OK
  @fR = sel.current_color.red
  @fG = sel.current_color.green
  @fB = sel.current_color.blue
  @fC = Gdk::Color.new(@fR, @fG, @fB)
  @fColor = @fC.to_s
  @fcsample.modify_bg(Gtk::STATE_NORMAL, @fC)
  end
  d.destroy
end  #fontColorSelect

## and then later...

info = "blargh"
@infoTxt.set_markup(%Q[<span font_desc="#{@font}"
foreground="#{@fColor}">#{info}</span>])

> 3. How to make anything typed on entry become uppercase ?

entry = Gtk::Enty.new
# do whatever you're going to do...
entry.editing_done
entrytext = entry.text.upcase


  -j

hi hendra -

>How about font size for entry? Thanks

  a quick look at "Gtk::Entry.instance_methods" shows me a #modify_font
method... not sure, but this would probably look something like

Gtk::Entry#modify_font(Gtk::STATE_NORMAL,##myfont##)

where ##myfont## is a font_description with family and size specified
(all simplified with the FontSelectionDialog...)

  as for number 3, why do you need to convert while typing? do you have
background processes running based on each letter?  you can convert it
to uppercase with a simple String#upcase immediately after entering
it...

  good luck -

  -j

Vincent Carmona wrote in post #990422:

> My tests:
> Gtk::Label#set_markup('<span size="x-large">toto</span>')  works
> Gtk::Label#set_markup('<span size="32">toto</span>')  does not work
> (Is it a bug??)
>

  pango markup for some reason specifies font size in 1024's of a point
(no clue why...)  making "32" much to small to show.  you can sidestep
that by using a partial font_description, though...  both of the
following work:

Gtk::Label#set_markup(%Q[<span size="12800">blargh</span>])

Gtk::Label#set_markup(%Q[<span font_desc="Sans Italic
12">blargh</span>])

http://ruby-gnome2.sourceforge.jp/hiki.cgi?pango-markup


  -j