fxruby users - Feb 2007 - No accelTable for an FXTabItem?

Hi,

Here is a small test application made up of an FXMainWindow, where you
can find an FXTabBook and three items inside.

I can add "keyboard accelerators" in the main window. It works just
fine.

But I''m unable to do the same in the FXTabItem class. If I call
"accelTable.addAccel" in the MyTabItem class, the error I get is:

------------------------------
test.rb:17:in `initialize'': undefined method `addAccel'' for
nil:NilClass
(NoMeth
odError)
        from test.rb:33:in `new''
        from test.rb:33:in `initialize''
        from test.rb:53:in `new''
        from test.rb:53
------------------------------

Apparently, accelTable is not initialized in the FXTabItem class.

FXTabItem is derived from FXWindow and should have an accelTable
attribute, right?

Does anyone see the problem then?

I''m using the FXRuby 1.6.6 gem under Ruby 1.8.5, under Windows XP.

Regards,

Philippe Lang



=======================================================require
''fox16''

include Fox

class MyTabItem < FXTabItem
    include Responder
    ID_SAVE = FXTabItem::ID_LAST
  
    def initialize(p, text, ic=nil, opts=TAB_TOP_NORMAL, x=0, y=0,
width=0, height=0, padLeft=DEFAULT_PAD, padRight=DEFAULT_PAD,
padTop=DEFAULT_PAD, padBottom=DEFAULT_PAD)
        super(p, text, ic, opts, x, y, width, height, padLeft, padRight,
padTop, padBottom)
        
        FXHorizontalFrame.new(p,
FRAME_RAISED|LAYOUT_FILL_X|LAYOUT_FILL_Y)
        
        FXMAPFUNC(SEL_COMMAND, MyTabItem::ID_SAVE, ''onSave'')
        
        # Bug appears if you uncomment the following line:
        #accelTable.addAccel(fxparseAccel("Ctrl-S"), self,
FXSEL(SEL_COMMAND, MyTabItem::ID_SAVE))
    end
    
    def onSave(sender, selector, data)
        puts "save in MyTabItem"
    end
end

class MyWindow < FXMainWindow
    include Responder
    ID_SAVE = FXMainWindow::ID_LAST
    
    def initialize(app)
        super(app, "Window", nil, nil, DECOR_ALL, 0, 0, 200, 100)
        
        tabbook = FXTabBook.new(self, nil, 0,
LAYOUT_FILL_X|LAYOUT_FILL_Y)
        tabitem1 = MyTabItem.new(tabbook, "tab 1")
        tabitem2 = MyTabItem.new(tabbook, "tab 2")
        tabitem3 = MyTabItem.new(tabbook, "tab 3")
        
        FXMAPFUNC(SEL_COMMAND, MyWindow::ID_SAVE, ''onSave'')
        accelTable.addAccel(fxparseAccel("Ctrl-S"), self,
FXSEL(SEL_COMMAND, MyWindow::ID_SAVE))
    end
    
    def onSave(sender, selector, data)
        puts "save in MyWindow"
    end
  
    def create
        super
        show(PLACEMENT_SCREEN)
    end
end

if __FILE__ == $0
  application = FXApp.new("Fox", "FXRuby Test")
  MyWindow.new(application)
  application.create
  application.run
end
========================================================

On Friday 16 February 2007 06:21, Philippe Lang wrote:
> Hi,
> 
> Here is a small test application made up of an FXMainWindow, where you
> can find an FXTabBook and three items inside.
> 
> I can add "keyboard accelerators" in the main window. It works
just
> fine.
> 
> But I''m unable to do the same in the FXTabItem class. If I call
> "accelTable.addAccel" in the MyTabItem class, the error I get is:
> 
> ------------------------------
> test.rb:17:in `initialize'': undefined method `addAccel''
for nil:NilClass
> (NoMeth
> odError)
>         from test.rb:33:in `new''
>         from test.rb:33:in `initialize''
>         from test.rb:53:in `new''
>         from test.rb:53
> ------------------------------
> 
> Apparently, accelTable is not initialized in the FXTabItem class.
> 
> FXTabItem is derived from FXWindow and should have an accelTable
> attribute, right?
It has a variable for accel table, but no accel table has been added
yet.  However, after you add an accel table, you should certainly
be able to add accelerator key-combinations to it then!


		- Jeroen


-- 
+----------------------------------------------------------------------------+
| Copyright (C) 07:20 02/16/2007 Jeroen van der Zijp.   All Rights Reserved. |
+----------------------------------------------------------------------------+

Jeroen van der Zijp wrote:
>> Apparently, accelTable is not initialized in the FXTabItem class.
>> 
>> FXTabItem is derived from FXWindow and should have an accelTable
>> attribute, right?
> 
> It has a variable for accel table, but no accel table has been added
> yet.  However, after you add an accel table, you should certainly be
> able to add accelerator key-combinations to it then!  
Hi,

I''ve tried initializing the accel table, the error has disappeared, but
the tab item does not react to CTRL-S at all. Something to enable maybe?

One more question: what happens if three tabs have the same hotkey
configured in their respective accel table? Do they all receive the
callback, or only the active tab? I''d like to code something similar to
the second solution, but I''m not sure how to do that...

Regards,

Philippe Lang


==========================================require ''fox16''

include Fox

class MyTabItem < FXTabItem
    include Responder
    ID_SAVE = FXTabItem::ID_LAST
  
    def initialize(p, text, ic=nil, opts=TAB_TOP_NORMAL, x=0, y=0,
width=0, height=0, padLeft=DEFAULT_PAD, padRight=DEFAULT_PAD,
padTop=DEFAULT_PAD, padBottom=DEFAULT_PAD)
        super(p, text, ic, opts, x, y, width, height, padLeft, padRight,
padTop, padBottom)
        
        FXHorizontalFrame.new(p,
FRAME_RAISED|LAYOUT_FILL_X|LAYOUT_FILL_Y)
        
        FXMAPFUNC(SEL_COMMAND, MyTabItem::ID_SAVE, ''onSave'')
        accelTable = FXAccelTable.new()
        accelTable.addAccel(fxparseAccel("Ctrl-S"), self,
FXSEL(SEL_COMMAND, MyTabItem::ID_SAVE))
    end
    
    def onSave(sender, selector, data)
        puts "save in MyTabItem"
    end
end

class MyWindow < FXMainWindow
    #include Responder
    #ID_SAVE = FXMainWindow::ID_LAST
    
    def initialize(app)
        super(app, "Window", nil, nil, DECOR_ALL, 0, 0, 200, 100)
        
        tabbook = FXTabBook.new(self, nil, 0,
LAYOUT_FILL_X|LAYOUT_FILL_Y)
        tabitem1 = MyTabItem.new(tabbook, "tab 1")
        tabitem2 = MyTabItem.new(tabbook, "tab 2")
        tabitem3 = MyTabItem.new(tabbook, "tab 3")
        
        #FXMAPFUNC(SEL_COMMAND, MyWindow::ID_SAVE, ''onSave'')
        #accelTable.addAccel(fxparseAccel("Ctrl-S"), self,
FXSEL(SEL_COMMAND, MyWindow::ID_SAVE))
    end
    
    def onSave(sender, selector, data)
        puts "save in MyWindow"
    end
  
    def create
        super
        show(PLACEMENT_SCREEN)
    end
end

if __FILE__ == $0
  application = FXApp.new("Fox", "FXRuby Test")
  MyWindow.new(application)
  application.create
  application.run
End
===========================================

fxruby-users-bounces at rubyforge.org wrote:
> Jeroen van der Zijp wrote:
> 
>>> Apparently, accelTable is not initialized in the FXTabItem class.
>>> 
>>> FXTabItem is derived from FXWindow and should have an accelTable
>>> attribute, right?
>> 
>> It has a variable for accel table, but no accel table has been added
>> yet.  However, after you add an accel table, you should certainly be
>> able to add accelerator key-combinations to it then!
> 
> Hi,
> 
> I''ve tried initializing the accel table, the error has
disappeared,
> but the tab item does not react to CTRL-S at all. Something to enable
> maybe?  
> 
> One more question: what happens if three tabs have the same hotkey
> configured in their respective accel table? Do they all receive the
> callback, or only the active tab? I''d like to code something
similar
> to the second solution, but I''m not sure how to do that...   
Hi again,

I have tried something else, still without success: I have overloaded
the tab frame as well, and configured its accel table. The only callback
that works for me is the one in the "MyWindow" class. 


==================================================require
''fox16''

include Fox

class MyFrame < FXHorizontalFrame
    include Responder
    ID_SAVE = FXHorizontalFrame::ID_LAST
    
    def initialize(p, opts=0, x=0, y=0, width=0, height=0,
padLeft=DEFAULT_SPACING, padRight=DEFAULT_SPACING,
padTop=DEFAULT_SPACING, padBottom=DEFAULT_SPACING,
hSpacing=DEFAULT_SPACING, vSpacing=DEFAULT_SPACING)
        super(p, opts, x, y, width, height, padLeft, padRight, padTop,
padBottom, hSpacing, vSpacing)
        
        FXMAPFUNC(SEL_COMMAND, MyFrame::ID_SAVE, ''onSave'')
        accelTable = FXAccelTable.new()
        accelTable.addAccel(fxparseAccel("Ctrl-S"), self,
FXSEL(SEL_COMMAND, MyFrame::ID_SAVE))
    end
    
    def onSave(sender, selector, data)
        puts "save in MyFrame"
    end
end

class MyTabItem < FXTabItem
    include Responder
    ID_SAVE = FXTabItem::ID_LAST
    
    def initialize(p, text, ic=nil, opts=TAB_TOP_NORMAL, x=0, y=0,
width=0, height=0, padLeft=DEFAULT_PAD, padRight=DEFAULT_PAD,
padTop=DEFAULT_PAD, padBottom=DEFAULT_PAD)
        super(p, text, ic, opts, x, y, width, height, padLeft, padRight,
padTop, padBottom)
        
        frame = MyFrame.new(p, FRAME_RAISED|LAYOUT_FILL_X|LAYOUT_FILL_Y)
        
        FXMAPFUNC(SEL_COMMAND, MyTabItem::ID_SAVE, ''onSave'')
        accelTable = FXAccelTable.new()
        accelTable.addAccel(fxparseAccel("Ctrl-S"), self,
FXSEL(SEL_COMMAND, MyTabItem::ID_SAVE))
    end
    
    def onSave(sender, selector, data)
        puts "save in MyTabItem"
    end
end

class MyWindow < FXMainWindow
    include Responder
    ID_SAVE = FXMainWindow::ID_LAST
    
    def initialize(app)
        super(app, "Window", nil, nil, DECOR_ALL, 0, 0, 200, 100)
        
        @tabbook = FXTabBook.new(self, nil, 0,
LAYOUT_FILL_X|LAYOUT_FILL_Y)
        tabitem1 = MyTabItem.new(@tabbook, "tab 1")
        tabitem2 = MyTabItem.new(@tabbook, "tab 2")
        tabitem3 = MyTabItem.new(@tabbook, "tab 3")
        
        FXMAPFUNC(SEL_COMMAND, MyWindow::ID_SAVE, ''onSave'')
        accelTable.addAccel(fxparseAccel("Ctrl-S"), self,
FXSEL(SEL_COMMAND, MyWindow::ID_SAVE))
    end
    
    def onSave(sender, selector, data)
        puts "save in MyWindow"
        puts @tabbook.current
    end
  
    def create
        super
        show(PLACEMENT_SCREEN)
    end
end

if __FILE__ == $0
  application = FXApp.new("Fox", "FXRuby Test")
  MyWindow.new(application)
  application.create
  application.run
end
===================================================