From: Craig Moran <craig.m.moran.ruby@...>
Date: 2005-04-30T02:58:24+09:00
Subject: Fox FXProgressBar refresh issue

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I am having a refresh issue with the FXProgressBar that I'd like to resolve=
.=20
First, I would like to state that I am not an experienced GUI programmer, s=
o=20
I'd like some guidance. I am working with Fox, trying to implement a=20
progress bar. I've stripped the code below to what I think is the simplest=
=20
base level design. If it may be done simpler, please let me know.

The issue is this. When I run this program and let it complete with no=20
interaction, it works fine. However, if I start clicking on the title bar,=
=20
it will eventually stop refreshing the application GUI. During my tests,=20
this will generally occur at 9% or shortly thereafter. When I have caused=
=20
the GUI to stop refreshing, the program still runs to completion, then=20
refreshes when the progress bar hits 100%.

Here's what I'd like to know:

   1. Am I implementing this correctly?=20
   2. Is there a better way to implement this? In the doStuff def, I=20
   would actually be performing real work.=20
   3. Am I not making the correct calls to refresh the GUI?=20

C:\>ruby -v
ruby 1.8.2 (2004-12-25) [i386-mswin32]
This is the 1.8.2-15 One-Click Installer for Windows
I am running it on Windows XP SP1. I have duplicated this behavior on=20
Windows 2000 with the same One-Click Installer. I don't think this is an=20
issue with the One-Click Installer. I think that I am doing something wrong=
.

As an aside, which other cross-platform GUIs have progress bars available? =
I=20
have used wxRuby and Tk in the past and my skill level is limited with both=
.=20
Thanks in advance for any help that is provided.
Craig

#!/usr/bin/env ruby
require 'fox12'
include Fox

TOTAL =3D 500000

class ProgressWindow < FXMainWindow
def initialize(app)
super(app, "Progress Bar", nil, nil, DECOR_ALL,
0, 0, 400, 0)
$pbar =3D FXProgressBar.new(self, nil, 0,
LAYOUT_FILL_X|FRAME_SUNKEN|
FRAME_THICK|PROGRESSBAR_PERCENTAGE)
$pbar.total =3D TOTAL
end # def initialize

def doStuff=20
TOTAL.times { |x|
$pbar.setProgress(x)
getApp.repaint
}
end # def doStuff

def create
super
show(PLACEMENT_SCREEN)
doStuff
end # def create
end # class ProgressWindow=20

def run
application =3D FXApp.new("Progress", "Test")
ProgressWindow.new(application)
application.create
application.run
end # def run

run

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I am having a refresh issue with the FXProgressBar that I'd like to
resolve.&nbsp;&nbsp;First, I would like to state that I am not an
experienced GUI programmer, so I'd like some guidance.&nbsp;&nbsp;I am
working with Fox, trying to implement a progress bar.&nbsp;&nbsp;I've
stripped the code below to what I think is the simplest base level
design.&nbsp;&nbsp;If it may be done simpler, please let me know.<br><br>Th=
e
issue is this.&nbsp;&nbsp;When I run this program and let it complete
with no interaction, it works fine.&nbsp;&nbsp;However, if I start
clicking on the title bar, it will eventually stop refreshing the
application GUI.&nbsp;&nbsp;During my tests, this will generally occur
at 9% or shortly thereafter.&nbsp;&nbsp;When I have caused the GUI to
stop refreshing, the program still runs to completion, then refreshes
when the progress bar hits 100%.<br><br>Here's what I'd like to know:<br>
<ol>
  <li>Am I implementing this correctly?</li>
  <li>Is there a better way to implement this?&nbsp; In the doStuff def, I =
would actually be performing real work.</li>
  <li>Am I not making the correct calls to refresh the GUI?</li>
</ol>
C:\&gt;ruby -v<br>
ruby 1.8.2 (2004-12-25) [i386-mswin32]<br>
This is the 1.8.2-15 One-Click Installer for Windows<br>
I am running it on Windows XP SP1.&nbsp; I have duplicated this
behavior on Windows 2000 with the same One-Click Installer.&nbsp; I
don't think this is an issue with the One-Click Installer.&nbsp; I
think that I am doing something wrong.<br>
<br>
As an aside, which other cross-platform GUIs have progress bars
available?&nbsp; I have used wxRuby and Tk in the past and my skill
level is limited with both.&nbsp; Thanks in advance for any help that
is provided.<br>
Craig<br><br>#!/usr/bin/env ruby<br>require 'fox12'<br>include Fox<br><br>T=
OTAL =3D 500000<br><br>class ProgressWindow &lt; FXMainWindow<br>&nbsp;&nbs=
p;def initialize(app)<br>&nbsp;&nbsp;&nbsp;&nbsp;super(app, &quot;Progress =
Bar&quot;, nil, nil, DECOR_ALL,
<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;0, 0, 400, 0)<br>&nbsp;&nbs=
p;&nbsp;&nbsp;$pbar =3D FXProgressBar.new(self, nil, 0,<br>&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;LAYOUT_FILL_X|FRAME_SUNKEN|<br>=09FRAME_THI=
CK|PROGRESSBAR_PERCENTAGE)<br>&nbsp;&nbsp;&nbsp;&nbsp;$pbar.total =3D TOTAL=
<br>&nbsp;&nbsp;end # def initialize<br><br>&nbsp;&nbsp;def doStuff
<br>&nbsp;&nbsp;&nbsp;&nbsp;TOTAL.times { |x|<br>&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;$pbar.setProgress(x)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;getAp=
p.repaint<br>&nbsp;&nbsp;&nbsp;&nbsp;}<br>&nbsp;&nbsp;end # def doStuff<br>=
<br>&nbsp;&nbsp;def create<br>&nbsp;&nbsp;&nbsp;&nbsp;super<br>&nbsp;&nbsp;=
&nbsp;&nbsp;show(PLACEMENT_SCREEN)<br>&nbsp;&nbsp;&nbsp;&nbsp;doStuff<br>&n=
bsp;&nbsp;end # def create<br>end # class ProgressWindow
<br><br>def run<br>&nbsp;&nbsp;application =3D FXApp.new(&quot;Progress&quo=
t;, &quot;Test&quot;)<br>&nbsp;&nbsp;ProgressWindow.new(application)<br>&nb=
sp;&nbsp;application.create<br>&nbsp;&nbsp;application.run<br>end # def run=
<br><br>run

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#!/usr/bin/env ruby
require 'fox12'
include Fox

TOTAL = 500000

class ProgressWindow < FXMainWindow
  def initialize(app)
    super(app, "Progress Bar", nil, nil, DECOR_ALL,
        0, 0, 400, 0)
    $pbar = FXProgressBar.new(self, nil, 0,
        LAYOUT_FILL_X|FRAME_SUNKEN|
	FRAME_THICK|PROGRESSBAR_PERCENTAGE)
    $pbar.total = TOTAL
  end # def initialize

  def doStuff
    TOTAL.times { |x|
      $pbar.setProgress(x)
      getApp.repaint
    }
  end # def doStuff

  def create
    super
    show(PLACEMENT_SCREEN)
    doStuff
  end # def create
end # class ProgressWindow

def run
  application = FXApp.new("Progress", "Test")
  ProgressWindow.new(application)
  application.create
  application.run
end # def run

run
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