fxruby users - Apr 2010 - Problem detecting keypresses in FXTable

I''m using an RXTable in my application and I would like to be able to
select a row and then press the Delete key to delete the selected row.
This does not seem to work, however, as apparently keypresses are not
initially recognized.  In my FXTable derived class I have:

   connect(SEL_KEYRELEASE) do |sender, selector, event|
      puts "code = #{''%X'' % event.code}"
      case event.code
         when KEY_Delete, KEY_KP_Delete
            puts "Delete key hit"
            # process...
         # ...
      end
   end

When I left-click on a row header, the row gets properly selected and
highlighted, but hitting any key does not result in being recognized
(i.e., the messages above do not appear).  If I then click on a table
cell, then subsequent keypresses cause the connected code to fire, and
things work as expected.  Do I have to do something to receive key
events initially?

-- 
Will

Shouldn''t it be FXTable.connect(Fox::SEL_KEYRELEASE) do |sender,
selector, event|

I use foxGUIb so if i am wrong i stand corrected to others who know better.

rgds,

Dave





________________________________
From: Will Parsons <wbparsons at cshore.com>
To: fxruby-users at rubyforge.org
Sent: Sat, 10 April, 2010 8:59:14 AM
Subject: [fxruby-users] Problem detecting keypresses in FXTable

I''m using an RXTable in my application and I would like to be able to
select a row and then press the Delete key to delete the selected row.
This does not seem to work, however, as apparently keypresses are not
initially recognized.  In my FXTable derived class I have:

   connect(SEL_KEYRELEASE) do |sender, selector, event|
      puts "code = #{''%X'' % event.code}"
      case event.code
         when KEY_Delete, KEY_KP_Delete
            puts "Delete key hit"
            # process...
         # ...
      end
   end

When I left-click on a row header, the row gets properly selected and
highlighted, but hitting any key does not result in being recognized
(i.e., the messages above do not appear).  If I then click on a table
cell, then subsequent keypresses cause the connected code to fire, and
things work as expected.  Do I have to do something to receive key
events initially?

-- 
Will
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http://rubyforge.org/mailman/listinfo/fxruby-users



      
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On Fri, 9 Apr 2010 18:25:00 -0700 (PDT)
dave L <dglnz at yahoo.com> wrote:
> Shouldn''t it be FXTable.connect(Fox::SEL_KEYRELEASE) do |sender,
selector, event|
> 
> I use foxGUIb so if i am wrong i stand corrected to others who know better.
No, I think the syntax is correct - after all, it does work as expected after a
mouse
click on a table cell.  Here''s a small test program to illustrate the
problem:

---------------------------------------------------------------------------------------
#!/usr/bin/env ruby
require ''fox16''
include Fox

class TopLevelWindow < FXMainWindow
   def initialize(app)
      super(app, ''Test'', :width => 420, :height => 150)

      frame = FXVerticalFrame.new(self, :opts => FRAME_SUNKEN|LAYOUT_FILL)
      table = FXTable.new(frame, :opts => LAYOUT_FILL)
      table.setTableSize(5, 3)
      table.connect(SEL_SELECTED) do |sender, selector, data|
         if data.col == 0
            puts "row #{data.row} selected"
         end
      end
      table.connect(SEL_KEYPRESS) do |sender, selector, event|
         puts "code = #{''%X'' % event.code}"
      end
   end

   def create
      super
      show(PLACEMENT_SCREEN)
   end
end

app = FXApp.new(ARGV[0])
TopLevelWindow.new(app)

# kick off application
app.create
app.run

---------------------------------------------------------------------------------------

After selecting a row initially, keypresses (or releases) are not dectected
until there
is a mouse click within a cell, after which key presses/releases are detected.

What I want to do - select a row and then press to Del/Delete key to delete it -
I would
think would a fairly common thing to want to do when dealing with tables. 
Haven''t other
people come across this issue?

___________________________
> From: Will Parsons <wbparsons at cshore.com>
> To: fxruby-users at rubyforge.org
> Sent: Sat, 10 April, 2010 8:59:14 AM
> Subject: [fxruby-users] Problem detecting keypresses in FXTable
> 
> I''m using an RXTable in my application and I would like to be able
to
> select a row and then press the Delete key to delete the selected row.
> This does not seem to work, however, as apparently keypresses are not
> initially recognized.  In my FXTable derived class I have:
> 
>    connect(SEL_KEYRELEASE) do |sender, selector, event|
>       puts "code = #{''%X'' % event.code}"
>       case event.code
>          when KEY_Delete, KEY_KP_Delete
>             puts "Delete key hit"
>             # process...
>          # ...
>       end
>    end
> 
> When I left-click on a row header, the row gets properly selected and
> highlighted, but hitting any key does not result in being recognized
> (i.e., the messages above do not appear).  If I then click on a table
> cell, then subsequent keypresses cause the connected code to fire, and
> things work as expected.  Do I have to do something to receive key
> events initially?
-- 
William B. Parsons <wbparsons at cshore.com>