fxruby-users — General-purpose discussion list for FXRuby

Re: [Fxruby-users] connect oddity?

[Joel V. <vj...@PA...>]

Fredrik Jagenheim wrote:
> Hi,
> 
> I tried using connect like this:
> 
> 8<
> 
> j = 0
> 3.times { |i|
>   FXButton.new(self, "Button#{j}").connect(SEL_COMMAND) { 
>     puts "#{j} pressed"
>   }
>   j += 1
> }
> 
> 
>>8
> 
> 
> This doesn't work as intended, but if I use the 'i' variable, it does.
> I figured it had to do with global/local scope, but I don't grok it
> fully.

As you guessed, it's not particularly an effect of #connect. It has to 
do with the way ruby associates bindings with code blocks. Your code 
generates three closures (closure=code+binding) of the block

   {
     puts "#{j} pressed"
   }

and all three of them refer to the same j variable. The string isn't 
interpolated until you execute the code. By the time the code executes 
(when you press a button), the value of j is 3. So a "3" gets 
interpolated in all three strings.

I didn't run the code (so I may be completely wrong ;) ), but I've been 
bitten by this before.

Using just "i" instead of "j" is one way around, as you noticed. Another 
way is to assign the value of j to a new local variable ("k", say) 
inside the #times block, and use that in the string interpolation.

HTH.

Re: [Fxruby-users] How can I tell if there is no display available?

[Evaldo G. <ev...@ga...>]

Hi!
Traditionally, on *nix systems, Display Availability is defined by a
target and authentication. the default target display you can get from
variable DISPLAY. if its not set, you are probably out of a GUI
environment. Another issue is checking authentication, which I will not
cover here, but you can read the manpage for Xsecurity(7) :)
Cya
Evaldo Gardenali - UdontKnow

Em Dom, 2004-06-13 =E0s 23:25, Ashley Reed escreveu:
> Hi all,
>=20
> I'm writing an application using Ruby that has both a text interface and
> a GUI (using FXRuby).  Can anyone tell me how to know at runtime if
> there is no display to use.  It seems that when I call FXApp.new(),
> control never returns to my code.  An error message is printed to the
> console, and the program exits.
>=20
> Here's the error message.  It's not even an exception.
> FXRbApp::openDisplay: unable to open display :10
>=20
> If there is no display available, I want to switch to my text interface.
>=20
> Thanks,
> Ashley

[Fxruby-users] connect oddity?

[Fredrik J. <fr...@po...>]

Hi,

I tried using connect like this:

8<

j = 0
3.times { |i|
  FXButton.new(self, "Button#{j}").connect(SEL_COMMAND) { 
    puts "#{j} pressed"
  }
  j += 1
}

>8

This doesn't work as intended, but if I use the 'i' variable, it does.
I figured it had to do with global/local scope, but I don't grok it
fully.

It's not really a problem, as a I have a workaround for it; but if
someone could please explain the behavour to me, I'd appreciate it.


Br,
//F

[Fxruby-users] How can I tell if there is no display available?

[Ashley R. <Ash...@co...>]

Hi all,

I'm writing an application using Ruby that has both a text interface and
a GUI (using FXRuby).  Can anyone tell me how to know at runtime if
there is no display to use.  It seems that when I call FXApp.new(),
control never returns to my code.  An error message is printed to the
console, and the program exits.

Here's the error message.  It's not even an exception.
FXRbApp::openDisplay: unable to open display :10

If there is no display available, I want to switch to my text interface.

Thanks,
Ashley

[Fxruby-users] [ANN] EZExerb 2.0

[Rich <ri...@li...>]

http://raa.ruby-lang.org/project/ezexerb/

<snippet from the RAA entry>

After Exerb (3.2.0) is installed this tool makes the creation of EXE files
easier.

Support for referencing a Ruby install directory other than the default.

EXR and MAK files deleted automatically.

User can define a 32x32 4 bit icon to use as the application icon.

Nullsoft NSIS packaged installer/uninstaller.

Tested on: 98, NT, 2000, and XP

2.0.0 - Release date: 10.06.04
1.1.0 - Release date: 14.05.04
1.0.0 - Release date: 18.02.04
0.9.0 - Release date: 15.02.04

-Richard

Re: [Fxruby-users] Simple TreeList example reordering TreeItems ....

[Hal F. <ha...@hy...>]

Jordan, Tom wrote:
> Hi All:
> 
> Does anyone have a reference for an example on how to do
> a simple reordering of TreeItems within a TreeList using the
> mouse.
> 
> I really don't need to DND between applications, just
> with in a tree itself.


Tom,

Sorry replying so late.

I can't help with this, but I'm also interested in a solution.

My uneducated guess is that it could (only) be done currently
by handcoding it, and it would require good knowledge of both
the TreeList and fxruby's DND.

My impression is that f(ox|xruby) doesn't know that intra-app
DND is a simpler special case. I think it's all one paradigm.

It seems to me it should be possible to design a drop-in
replacement for the tree list that enabled the manual moving
of items.

In fact (waves checkbook), I'd donate $100 to anyone who could
do that for me.

Ha, this is in the spirit of rentacoder.com, ever seen that site?
:)


Thanks,
Hal

[Fxruby-users] Re: Elementary FXDialogBox query

[Nigel W. <ni...@wa...>]

Thanks everyone

Nigel

[Fxruby-users] (no subject)

[TOGoS <chu...@ya...>]

Hi all.

I'm trying to use Fox to make a chat program. I want
to have a list that displayes messages as they come
in. Unfortunately, I'm having trouble getting the
FXList to scroll down. Using makeItemVisible doesn't
seem to do the trick, and neither does anything else
I've tried (setCurrentItem, updateItem, etc). The
following script shows the problem by periodically
inserting data into a FXText and a FXList, and
attempting to scroll to the bottom of each. Works for
the text, but not the list. Can anyone help me out?


#~/usr/bin/ruby

require 'fox'

app = Fox::FXApp.new()
mainwin = Fox::FXMainWindow.new( app,
  "FoxTest", NIL,NIL,
  Fox::DECOR_ALL,128,128,128,64 )
frame = Fox::FXHorizontalFrame.new( mainwin,
                              Fox::LAYOUT_FILL_X|
                              Fox::LAYOUT_FILL_Y )
list = Fox::FXList.new( frame, 0, NIL, 0,
                  Fox::LIST_NORMAL|
                  Fox::LAYOUT_FILL_X|
                  Fox::LAYOUT_FILL_Y,
                  0,0,64,64 )
textbox = Fox::FXText.new( frame, NIL, 0,
                     Fox::TEXT_READONLY|
                     Fox::LAYOUT_FILL_X|
                     Fox::LAYOUT_FILL_Y )

app.create()
mainwin.show()
Thread.abort_on_exception = TRUE
Thread.new do
  listendpos = 0
  textendpos = 0
  while TRUE
    listendpos = list.appendItem(
       "foonly #{listendpos}" )
    list.makeItemVisible( listendpos )

    textbox.appendText( "foonly #{textendpos}\n" )
    textendpos = textbox.lineEnd(
      textbox.getBottomLine() )
    textbox.makePositionVisible( textendpos )

    sleep(1)
  end
end
app.run()



	
		
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[Fxruby-users] Re: Elementary FXDialogBox query

[Lyle J. <ly...@kn...>]

On Jun 6, 2004, at 6:47 AM, Nigel Wilkinson wrote:

> Thanks, I've now got it working. Out of curiosity what class does 
> theDialog.textField return as I have had to use 
> theDialog.textField.to_s to use it as a string.

When you define an attr_accessor for a Ruby class, e.g.

	class MyClass
		attr_accessor :foo
	end

it creates a new instance method named "foo" that will allow clients to 
get or set the value of that instance variable, e.g.

	anObject = MyClass.new
	anObject.foo = Bar.new
	x = anObject.foo

So for the dialog box class from your previous example, we had an 
attr_accessor named "textField", and in the class' initialize method we 
assigned an FXTextField object to it:

	@textField = FXTextField.new(...)

So when you call:

	anAddItemDialog.textField

it returns a reference to the FXTextField object. To find out about 
what methods you can call on an FXTextField (or any other FXRuby 
class), you can consult the on-line documentation at 
http://www.fxruby.org. For example, here's a direct link to the 
FXTextField class docs:

	http://www.fxruby.org/doc/api/classes/Fox/FXTextField.html

As shown in the "Attributes" section, the "text" method returns a 
String containing the FXTextField's text. Because FXTextField is so 
smart, it also does this when you call the text field's to_s() method. 
;)

Hope this helps,

Lyle

[Fxruby-users] Re: Elementary FXDialogBox query

[Nigel W. <ni...@wa...>]

--On Sunday, June 06, 2004 03:51:52 +0900 Lyle Johnson <ly...@kn...> 
wrote:

>
> On Jun 5, 2004, at 12:41 PM, Nigel Wilkinson wrote:
>
>> I'm trying to use a dialog box in FXRuby.
>
> <snip>
>
> Umm, no. You don't call execute() on the dialog box while you're still
> constructing it. Try something like this instead:
>
> 	class AddItemDialog < FXDialogBox
> 		# Add an accessor so we can get to the text field later
> 		attr_accessor :textField
>
> 		def initialize(owner)
> 			... as before, but...
> 			@textField = FXTextField.new(...)
> 		end
> 		def create
> 			... as before ...
> 		end
> 	end
>
> and then invoke it like this:
>
> 	theDialog = AddItemDialog.new(someWindow)
> 	if theDialog.execute != 0
> 		puts theDialog.textField
> 	end
>
> Hope this helps,
>
> Lyle
>

Thanks, I've now got it working. Out of curiosity what class does 
theDialog.textField return as I have had to use theDialog.textField.to_s to 
use it as a string.

Cheers
Nigel

[Fxruby-users] Re: Elementary FXDialogBox query

[Lyle J. <ly...@kn...>]

On Jun 5, 2004, at 12:41 PM, Nigel Wilkinson wrote:

> I'm trying to use a dialog box in FXRuby.

OK.

> I have a class set up as follows

<snip>

> When invoked I get the dialog that closes when either of the buttons 
> is pressed and return a 1 or a 0 depending on which button is pressed.

Yes, looks good.

> What I want to do is capture the text in the text field so i tried

<snip>

Umm, no. You don't call execute() on the dialog box while you're still 
constructing it. Try something like this instead:

	class AddItemDialog < FXDialogBox
		# Add an accessor so we can get to the text field later
		attr_accessor :textField

		def initialize(owner)
			... as before, but...
			@textField = FXTextField.new(...)
		end
		def create
			... as before ...
		end
	end

and then invoke it like this:

	theDialog = AddItemDialog.new(someWindow)
	if theDialog.execute != 0
		puts theDialog.textField
	end

Hope this helps,

Lyle

RE: [Fxruby-users] FXScrollArea

[Steve T. <STU...@MU...>]

Oops my mistake, I guess I just posted this too fast.....

> -----Original Message-----
> From: RLMuller [mailto:RLM...@Co...]
> Sent: Tuesday, June 01, 2004 9:26 PM
> To: fxr...@li...
> Subject: Re: [Fxruby-users] FXScrollArea
> 
> 
> How'd you get Steve's code to work.  I tried it and it barfed 
> on require
> "myfoxcal".
> 
> I searched Google for myfoxcal and got nothing.  I searched 
> my Ruby 1.8
> installation: again, nothing.
> 
> Regards,
> Richard
> 
> ----- Original Message ----- 
> From: "Fredrik Jagenheim" <fr...@po...>
> To: <fxr...@li...>
> Sent: Tuesday, June 01, 2004 4:52 PM
> Subject: Re: [Fxruby-users] FXScrollArea
> 
> 
> > On Tue, Jun 01, 2004 at 03:04:10PM -0500, Steve Tuckner wrote:
> > > Here is a sample of a scroll area that adds and deletes controls.
> Hope
> this
> > > helps.
> >
> > It did, without answering my question. :)
> >
> > I thought that I had to use FXScrollArea, and FXScrollWindow was for
> > toplevel windows. But after looking at your code, I realized that it
> > was FXScrollWindow I really wanted.
> >
> > Thanks,
> > //F
> >
> >
> >
> > -------------------------------------------------------
> > This SF.Net email is sponsored by the new InstallShield X.
> > From Windows to Linux, servers to mobile, InstallShield X is the one
> > installation-authoring solution that does it all. Learn more and
> > evaluate today! http://www.installshield.com/Dev2Dev/0504
> > _______________________________________________
> > Fxruby-users mailing list
> > Fxr...@li...
> > https://lists.sourceforge.net/lists/listinfo/fxruby-users
> 
> 
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Re: [Fxruby-users] FXScrollArea

[RLMuller <RLM...@Co...>]

Hi Fredrik,

> However, just remove the <require 'myfoxcal'> line and 
> the line with <MyDateTime> and it will run.
> 
> HTH,

It certainly did!  Thanks,  a lot.

Regards,
Richard


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Re: [Fxruby-users] FXScrollArea

[Fredrik J. <fr...@po...>]

On Tue, Jun 01, 2004 at 10:25:38PM -0400, RLMuller wrote:
> How'd you get Steve's code to work.  I tried it and it barfed on require
> "myfoxcal".
> 

It wasn't so much the running of the code, but seeing that he used
FXScrollWindow instead of FXScrollArea.

However, just remove the <require 'myfoxcal'> line and the line with
<MyDateTime> and it will run.

HTH,
//F

Re: [Fxruby-users] FXScrollArea

[RLMuller <RLM...@Co...>]

How'd you get Steve's code to work.  I tried it and it barfed on require
"myfoxcal".

I searched Google for myfoxcal and got nothing.  I searched my Ruby 1.8
installation: again, nothing.

Regards,
Richard

----- Original Message ----- 
From: "Fredrik Jagenheim" <fr...@po...>
To: <fxr...@li...>
Sent: Tuesday, June 01, 2004 4:52 PM
Subject: Re: [Fxruby-users] FXScrollArea


> On Tue, Jun 01, 2004 at 03:04:10PM -0500, Steve Tuckner wrote:
> > Here is a sample of a scroll area that adds and deletes controls. Hope
this
> > helps.
>
> It did, without answering my question. :)
>
> I thought that I had to use FXScrollArea, and FXScrollWindow was for
> toplevel windows. But after looking at your code, I realized that it
> was FXScrollWindow I really wanted.
>
> Thanks,
> //F
>
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by the new InstallShield X.
> From Windows to Linux, servers to mobile, InstallShield X is the one
> installation-authoring solution that does it all. Learn more and
> evaluate today! http://www.installshield.com/Dev2Dev/0504
> _______________________________________________
> Fxruby-users mailing list
> Fxr...@li...
> https://lists.sourceforge.net/lists/listinfo/fxruby-users


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Re: [Fxruby-users] FXScrollArea

[Fredrik J. <fr...@po...>]

On Tue, Jun 01, 2004 at 03:04:10PM -0500, Steve Tuckner wrote:
> Here is a sample of a scroll area that adds and deletes controls. Hope this
> helps.

It did, without answering my question. :)

I thought that I had to use FXScrollArea, and FXScrollWindow was for
toplevel windows. But after looking at your code, I realized that it
was FXScrollWindow I really wanted.

Thanks,
//F

RE: [Fxruby-users] FXScrollArea

[Steve T. <STU...@MU...>]

Here is a sample of a scroll area that adds and deletes controls. Hope this
helps.

Steve Tuckner

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


require "fox"
require "myfoxcal"

include Fox

class FxTestWindow < FXMainWindow
	TIMER_INTERVAL = 20
	def initialize(app)
		# Invoke base class initialize first
		super(app, "FxTest", nil, nil, DECOR_ALL, 0, 0, 600, 600)

		i = 1
		@buttons = []
		outsideFrame = FXVerticalFrame.new(self, LAYOUT_FILL_X|LAYOUT_FILL_Y)
			horzFrame = FXHorizontalFrame.new(outsideFrame,
LAYOUT_FILL_X|LAYOUT_FILL_Y)
				FXButton.new(horzFrame, "Add Control").connect(SEL_COMMAND) do
					$stdout.print "button pressed\n"
					$stdout.flush

					v = FXButton.new(@contentFrame, "Button #{i}")
					v.create
					@contentFrame.recalc
					@buttons.push(v)

					$stdout.print "v = #{v}\n"
					$stdout.flush
					i += 1
					@timer = getApp().addTimeout(TIMER_INTERVAL, method(:onTimeout))
				end
				FXButton.new(horzFrame, "Remove Control").connect(SEL_COMMAND) do
					button = @buttons[0]
					@buttons = @buttons[1..@buttons.size-1]
					@contentFrame.removeChild(button)
				end

		@scrollFrame = FXScrollWindow.new(outsideFrame,
LAYOUT_FILL_X|LAYOUT_FILL_Y)
		@contentFrame = FXVerticalFrame.new(@scrollFrame,
LAYOUT_FILL_X|LAYOUT_FILL_Y)
			FXText.new(@contentFrame, nil, 0, LAYOUT_FIX_WIDTH|LAYOUT_FIX_HEIGHT, 0,
0, 200, 100)
			dtzone=MyDateTime.new(@contentFrame, 100,100);

	end

	def onTimeout(*args)
		@scrollFrame.setPosition(0,-(@scrollFrame.contentHeight))
	end

	# Start
	def create
		super
		show(PLACEMENT_SCREEN)
	end
end

def runGUI
puts "before FXApp.new"
	# Make an application
	$application = FXApp.new("Dialog", "FxWorld")

	# Open the display
	$application.init(ARGV)

	# Construct the application's main window
	FxTestWindow.new($application)

	# Create the application
	$application.create

	# Run the application
	$application.run
end

puts "before runGUI"
runGUI

> -----Original Message-----
> From: Fredrik Jagenheim [mailto:fr...@po...]
> Sent: Tuesday, June 01, 2004 1:30 PM
> To: fxruby
> Subject: [Fxruby-users] FXScrollArea
>
>
> Hi, another newbie question...
>
> How do I use FXScrollArea?
>
> I had hoped that it would be enough to add a layout manager as a child
> to the ScrollArea, but it just draws a white area. How do I add
> contents to my area?
>
> Thanks in advance,
> //F
>
>
>
> -------------------------------------------------------
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>
> Take an Oracle 10g class now, and we'll give you the exam FREE.
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> _______________________________________________
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> Fxr...@li...
> https://lists.sourceforge.net/lists/listinfo/fxruby-users

[Fxruby-users] FXScrollArea

[Fredrik J. <fr...@po...>]

Hi, another newbie question...

How do I use FXScrollArea?

I had hoped that it would be enough to add a layout manager as a child
to the ScrollArea, but it just draws a white area. How do I add
contents to my area?

Thanks in advance,
//F

Re: [Fxruby-users] fox-1.2.1 + fxruby-1.0.28

[Igor D. <idi...@ma...>]
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Re: [Fxruby-users] fox-1.2.1 + fxruby-1.0.28

[jeroen <je...@fo...>]

On Tuesday 01 June 2004 12:47 am, Igor Didkovsky wrote:
> Can I download fxruby for fox-1.2.1 ? Is fox-1.2.1 stable version?

FOX 1.2.x is the stable version, yes.

For FXRuby, you will need to use FOX 1.0 (the previous stable version), at
least until Lyle is through with the FXRuby 1.2 which should be ready
sometime this month as I understand it.


	- Jeroen


-- 
+----------------------------------------------------------------------------+
| Copyright (C) 23:50 12/11/2003 Jeroen van der Zijp.   All Rights Reserved. |
+----------------------------------------------------------------------------+

[Fxruby-users] fox-1.2.1 + fxruby-1.0.28

[Igor D. <idi...@ma...>]

Can I download fxruby for fox-1.2.1 ? Is fox-1.2.1 stable version?

-- 
Best regards,
   Igor Didkovsky
=====================================

      ICQ: 121701104
      Web: http://langos.lrn.ru

Keyserver: hkp://keyserver.kjsl.com
    KeyID: 0x833380B0

[Fxruby-users] Simple TreeList example reordering TreeItems ....

[Jordan, T. <Tom...@ca...>]

Hi All:

Does anyone have a reference for an example on how to do
a simple reordering of TreeItems within a TreeList using the
mouse.

I really don't need to DND between applications, just
with in a tree itself.

Thanks,
-- Tom.

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Re: [Fxruby-users] Deriving from FXTopWindow

[Fredrik J. <fr...@po...>]

On Fri, May 28, 2004 at 11:27:37AM +0200, Simon Strandgaard wrote:
> Fredrik Jagenheim <fr...@po...> wrote:
> > I can't figure out the correct arguments to the baseclass initialize:
> 
> What about ?
>     super(owner, "Title", nil, nil, DECOR_ALL, 0, 0, 640, 480, 0, 0, 0, 0, 0, 0) 

Worked perfectly, thanks.

//F

Re: [Fxruby-users] Deriving from FXTopWindow

[Simon S. <ne...@ad...>]

Fredrik Jagenheim <fr...@po...> wrote:
> I don't want it as a dialog, so I figured I had to use FXTopWindow
> instead. But I can't figure out the correct arguments to the baseclass
> initialize:
>    matrixWindow.rb:9:in `initialize': No matching function for overloaded
>    'new_FXTopWindow' (ArgumentError)
 

What about ?

class MyTop < FXTopWindow
  def initialize(owner)
    super(owner, "Title", nil, nil, DECOR_ALL, 0, 0, 640, 480, 0, 0, 0, 0, 0, 0) 
  end
  ...
end


-- 
Simon Strandgaard

[Fxruby-users] Deriving from FXTopWindow

[Fredrik J. <fr...@po...>]

Hi,

I'm trying to create a new window from my MainWindow; but I can't
figure out how.

I don't want it as a dialog, so I figured I had to use FXTopWindow
instead. But I can't figure out the correct arguments to the baseclass
initialize:
   matrixWindow.rb:9:in `initialize': No matching function for overloaded
   'new_FXTopWindow' (ArgumentError)

So, perhaps there is no initialize, since it's an abstract class, so I
remove the 'super' call:
   matrixWindow.rb:13:in `initialize': This FXComposite * already
   released (RuntimeError)

Obviously, calling initialize is required somehow.


Am I mistaken when trying to use FXTopWindow? Perhaps I can use
FXDialogBox without it telling my WindowManager that it's a dialog?

Tia,
//F