Re: Improved Layout by Code module for Python
- From: Alex Hall <mehgcap@xxxxxxxxx>
- To: programmingblind@xxxxxxxxxxxxx
- Date: Fri, 17 Jun 2011 10:16:17 -0400
Interesting... When set to 10010, the fruitbasket program works
normally, but when set to 10008, it does not work (except for the
prompt on exiting). In either case, the test program in the zip file
exits when I press enter on the first button, or tab to move to
another button, with no traceback being printed - it just closes. More
intriguing, my mother has 32-bit Vista and I just installed python27,
pywin, and wx on her laptop. When we ran the program I am writing
(which also works on my 64-bit system with 10010 but not 10008), it
did not work. She has to leave, but I strongly suspect that if I
changed the value to 10008 instead of 10010 on her computer, it would
function normally. Unfortunately, I cannot test this for a few hours
until she gets back, but it makes me wonder if the 32 vs 64 bit thing
is throwing off the codes somehow. Oh, my version of Python is 32-bit
on 64-bit Windows (I heard that I might have trouble with 64-bit
Python, so I have so far stayed away from it).
On 6/17/11, Jamal Mazrui <empower@xxxxxxxxx> wrote:
> Thanks. Do you have a 64-bit version of Python associated with .py
> files? If so, then that could explain my different results, because
> lbc_fruit.exe is a 32-bit executable.
>
> With that code change, can you confirm that running test_lbc.py seems to
> work properly?
>
> Jamal
>
>
> On 6/17/2011 7:56 AM, Alex Hall wrote:
>> The only change is in the IsClickEvent function; either change 10008
>> to 10010, or add 10010 to the if statement:
>> def IsClickEvent(event):
>> iID = event.GetId()
>> iType = event.GetEventType()
>> if iType == 10010: return True
>> else: return False
>> That works for me. It may also work to say
>> if iType==10010 or iType==10008:...
>> but I have not tried that. This is python 2.7, if that matters.
>>
>>
>> On 6/17/11, Jamal Mazrui<empower@xxxxxxxxx> wrote:
>>> I just tried running lbc_fruit.py from the zip archive (I unzipped the
>>> archive from the web site into a new directory rather than using my
>>> development directory). The program ran as expected (I was able to add
>>> or delete fruit.etc.). This is puzzling, especially since you say the
>>> lbc_fruit.exe version works, which was built from the same code.
>>>
>>> Perhaps 64-bit has something to do with our different results, or the
>>> fact that I am using Python 2.5. Not sure. Can you post a code snippet
>>> that changes lbc.py in a way that resolves the problem?
>>>
>>> Jamal
>>>
>>>
>>> On 6/17/2011 7:33 AM, Alex Hall wrote:
>>>> It was; I was using IsClickEvent(). Again, though, the fruit basket
>>>> python file failed to run with the new lbc. It opened, but the buttons
>>>> were inoperative, and I had not changed anything in that file. I am
>>>> not sure why this is so, but as soon as I changed the trigger to 10010
>>>> in lbc.py, things worked as expected. See if the fruit basket python
>>>> file (not the executable) runs on your computer from the zip file you
>>>> posted; it may be something to do with 64-bit vs 32-bit, or some other
>>>> oddity.
>>>>
>>>> On 6/17/11, Jamal Mazrui<empower@xxxxxxxxx> wrote:
>>>>> The new Layout by Code automatically passes more events to the default
>>>>> event handler, which processes them before the custom event handler
>>>>> that
>>>>> you define. The focus event is one of those passed, so yu have to make
>>>>> sure your code is reacting specifically to the click event, not just to
>>>>> an event on the control of interest.
>>>>>
>>>>> If a problem remains, please post or send me a sample script, and I
>>>>> will
>>>>> try to resolve this.
>>>>>
>>>>> Jamal
>>>>>
>>>>> On 6/17/2011 6:36 AM, Alex Hall wrote:
>>>>>> Okay, more pressing problem! I tried to use your "IsClickEvent" method
>>>>>> since the alert dialog I have set to trigger on a button was happening
>>>>>> when I tabbed to the button, not when I activated it. However, the
>>>>>> dialog will not appear. Your method returns true if the
>>>>>> EventType==10008. However, when I printed out the EventType in my
>>>>>> event handler, I saw that I got 10010 when I pressed space or enter on
>>>>>> the button. I am tempted to just change the condition for returning in
>>>>>> your function, but I am not sure if that will cause problems later on.
>>>>>> Your fruit basket executable works as expected, so I am not sure how
>>>>>> that works and this does not. Interestingly, the fruit basket python
>>>>>> file does not work, I suspect due to the same problem I am having. It
>>>>>> confirms exiting with the y/n dialog, but clicking any button does
>>>>>> nothing.
>>>>>>
>>>>>> On 6/17/11, Alex Hall<mehgcap@xxxxxxxxx> wrote:
>>>>>>> Thanks for the update, I am going to try it to see if I can get
>>>>>>> things
>>>>>>> working better. My only question for now is about the ini file. In
>>>>>>> the
>>>>>>> sample, you have a [Fruit Basket] section. How did you decide on that
>>>>>>> section name? Does it have to match the title of the dialog with
>>>>>>> which
>>>>>>> it is associated?
>>>>>>>
>>>>>>> On 6/16/11, Jamal Mazrui<empower@xxxxxxxxx> wrote:
>>>>>>>> From the archive at
>>>>>>>> http://EmpowermentZone.com/pyLbc.zip
>>>>>>>>
>>>>>>>> Layout by Code for Python
>>>>>>>> Version 1.3
>>>>>>>> June 16, 2011
>>>>>>>> Copyright 2009 - 2011 by Jamal Mazrui
>>>>>>>> GNU Lesser General Public License (LGPL)
>>>>>>>>
>>>>>>>> I have updated a Python module called Layout by Code (lbc), which
>>>>>>>> simplifies design of dialogs with the WxWidgets GUI library. It is
>>>>>>>> another implementation of the Layout by Code approach that I
>>>>>>>> originally
>>>>>>>> developed for the AutoIt language, available at
>>>>>>>> http://EmpowermentZone.com/lbc.zip
>>>>>>>>
>>>>>>>> I also developed a version for .NET languages, such as C# and Visual
>>>>>>>> Basic, which is distributed as part of HomerApp, the Homer
>>>>>>>> Application
>>>>>>>> Framework, available at
>>>>>>>> http://EmpowermentZone.com/appsetup.exe
>>>>>>>>
>>>>>>>> Although the Python version is not as flexible, it is still intended
>>>>>>>> to
>>>>>>>> support most dialogs one might need (based on years of experience
>>>>>>>> with
>>>>>>>> various applications and languages). It should work with Python
>>>>>>>> versions 2.4 through 2.7. It depends on the following 3rd-party
>>>>>>>> Python
>>>>>>>> modules:
>>>>>>>>
>>>>>>>> wxPython
>>>>>>>> http://wxpython.org
>>>>>>>>
>>>>>>>> py2exe
>>>>>>>> http://py2exe.org
>>>>>>>>
>>>>>>>> Python for Windows extensions
>>>>>>>> http://sourceforge.net/projects/pywin32/
>>>>>>>>
>>>>>>>> odict -- an ordered dictionary
>>>>>>>> http://www.voidspace.org.uk/python/odict.html
>>>>>>>>
>>>>>>>> The py2exe module is only needed if one wants to create a Windows
>>>>>>>> executable like lbc_fruit.exe. The batch file
>>>>>>>> run_setup_lbc_fruit.bat
>>>>>>>> does this, using setup_lbc_fruit.py to specify how the executable is
>>>>>>>> built.
>>>>>>>>
>>>>>>>> After instantiating an lbc dialog object, any of the following
>>>>>>>> controls
>>>>>>>> may be added with a line of code: Button, CheckBox, ListBox,
>>>>>>>> RadioButton, RichEdit, StaticText, or TextCtrl. The control is
>>>>>>>> added
>>>>>>>> to
>>>>>>>> a horizontal band of controls, with layout automatically managed by
>>>>>>>> wxSizer containers. Adding a new band is analagous to pressing
>>>>>>>> carriage
>>>>>>>> return at the end of a line.
>>>>>>>>
>>>>>>>> The lbc Complete method adds a band of buttons at the bottom of the
>>>>>>>> dialog before invoking it. The method returns the ID of the button
>>>>>>>> that
>>>>>>>> ended the dialog. At that point, the dialog object has an ordered
>>>>>>>> dictionary attribute called Controls, containing the names of
>>>>>>>> controls
>>>>>>>> that were added to the dialog before it was invoked. A control name
>>>>>>>> is
>>>>>>>> its class and label, if any, seperated by an underscore, e.g.,
>>>>>>>> Button_OK. The dialog also has a dictionary attribute called
>>>>>>>> Results,
>>>>>>>> containing the control names and values when the dialog ended.
>>>>>>>>
>>>>>>>> By default, a status bar is added as the last control of a dialog.
>>>>>>>> It
>>>>>>>> may be used for help messages to the user. For example, each
>>>>>>>> control
>>>>>>>> can trigger a help message when it receives focus. These messages
>>>>>>>> may
>>>>>>>> be defined in a .ini file that accompanies the main script file
>>>>>>>> (with
>>>>>>>> the same name except for the extension). The fruit basket sample
>>>>>>>> script
>>>>>>>> illustrates this feature in the file lbc_fruit.ini. A screen reader
>>>>>>>> user can press a hotkey to read the status bar.
>>>>>>>>
>>>>>>>> Over ten convenience dialogs have been defined using lbc,
>>>>>>>> illustrated
>>>>>>>> with the program test_lbc.py. Also, a fruit basket program is in
>>>>>>>> lbc_fruit.py.
>>>>>>>>
>>>>>>>> Below is a summary of lbc functions. For convenient reference, the
>>>>>>>> code
>>>>>>>> in test_lbc.py and then lbc_fruit.py follows afterward.
>>>>>>>>
>>>>>>>> Jamal
>>>>>>>>
>>>>>>>>
>>>>>>>> ----------
>>>>>>>>
>>>>>>>> lbc convenience dialogs
>>>>>>>>
>>>>>>>> DialogBrowseForFolder(title='', value='') -- Select a folder
>>>>>>>>
>>>>>>>> DialogChoose(title='Choose', message = '', names=[]) -- Choose a
>>>>>>>> button
>>>>>>>>
>>>>>>>> DialogConfirm(title='Confirm', message='', value='Y') -- Choose from
>>>>>>>> a
>>>>>>>> Yes/No/Cancel message box
>>>>>>>>
>>>>>>>> DialogInput(title='Input', label='', value='', ) -- Input with a
>>>>>>>> single-line edit box
>>>>>>>>
>>>>>>>> DialogMemo(title='Memo', label='', value='', readonly=False) --
>>>>>>>> Input
>>>>>>>> or
>>>>>>>> read text with a multiple-line edit box
>>>>>>>>
>>>>>>>> DialogMultiInput(title='MultiInput', labels=[], values=[],
>>>>>>>> options=[])
>>>>>>>> -- Input with multiple edit boxes
>>>>>>>>
>>>>>>>> DialogMultiPick(title='Multi Pick', message='', names=[], values=[],
>>>>>>>> sort=False, index=0) -- Pick from a multiple-selection listbox
>>>>>>>>
>>>>>>>> DialogOpenFile(title='Open', value='', wildcard='All files
>>>>>>>> (*.*)|*.*')
>>>>>>>> -- Specify a file to open
>>>>>>>>
>>>>>>>> DialogPick(title='Pick', message='', names=[], values=[],
>>>>>>>> sort=False,
>>>>>>>> index=0) -- Pick from a single-selection listbox
>>>>>>>>
>>>>>>>> DialogSaveFile(title='Save', value='', wildcard='All files
>>>>>>>> (*.*)|*.*')
>>>>>>>> -- Specify a file to save
>>>>>>>>
>>>>>>>> DialogShow(title='Show', message='') -- Show a message
>>>>>>>>
>>>>>>>> ----------
>>>>>>>>
>>>>>>>> Content of test_lbc.py
>>>>>>>>
>>>>>>>> import lbc
>>>>>>>>
>>>>>>>> labels = 'Label1 Label2 Label3'.split()
>>>>>>>> names = 'Name1 Name2 Name3'.split()
>>>>>>>> values = 'Value1 Value2 Value3'.split()
>>>>>>>>
>>>>>>>> result = lbc.DialogChoose(title='Choose a Button', message='My
>>>>>>>> message',
>>>>>>>> names=['Button1', 'Button2', 'Button3'])
>>>>>>>> lbc.DialogShow(title='result', message=result)
>>>>>>>>
>>>>>>>> result = lbc.DialogConfirm(title='Confirm an Action', message='my
>>>>>>>> question', value='Y')
>>>>>>>> lbc.DialogShow(title='result', message=result)
>>>>>>>>
>>>>>>>> result=lbc.DialogInput(title='Input a Value', label='My Label',
>>>>>>>> value='My Value')
>>>>>>>> lbc.DialogShow(title='result', message=result)
>>>>>>>>
>>>>>>>> result = lbc.DialogMemo(title='Input Multiple Lines', label='',
>>>>>>>> value='line1\nline2\nline3')
>>>>>>>> lbc.DialogShow(title='result', message=result)
>>>>>>>>
>>>>>>>> result = lbc.DialogMultiInput(title='Input Multiple Values',
>>>>>>>> labels=labels, values=values)
>>>>>>>> lbc.DialogShow(title='result', message=result)
>>>>>>>>
>>>>>>>> result = lbc.DialogPick(title='Pick an Item', names=names,
>>>>>>>> values=values, sort=True)
>>>>>>>> lbc.DialogShow(title='result', message=result)
>>>>>>>>
>>>>>>>> result=lbc.DialogMultiPick(title='Pick Multiple Items', names=names,
>>>>>>>> values=values)
>>>>>>>> lbc.DialogShow(title='result', message=result)
>>>>>>>>
>>>>>>>> result = lbc.DialogOpenFile(value=r'c:\temp\test.txt')
>>>>>>>> lbc.DialogShow(title='result', message=result)
>>>>>>>>
>>>>>>>> result = lbc.DialogSaveFile(value=r'c:\temp\test.txt')
>>>>>>>> lbc.DialogShow(title='result', message=result)
>>>>>>>>
>>>>>>>> result = lbc.DialogBrowseForFolder(value=r'c:\temp')
>>>>>>>> lbc.DialogShow(title='result', message=result)
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> ----------
>>>>>>>>
>>>>>>>> Content of lbc_fruit.py
>>>>>>>>
>>>>>>>> import wx, lbc
>>>>>>>>
>>>>>>>> # Custom event handler
>>>>>>>> def OnEvent(dlg, event, name):
>>>>>>>> if lbc.IsCloseEvent(event):
>>>>>>>> if lbc.DialogConfirm(title='Confirm', message='Exit
>>>>>>>> program?',
>>>>>>>> value='Y') == 'Y': return event.Skip()
>>>>>>>> else: return event.Veto()
>>>>>>>>
>>>>>>>> txt = dlg.Controls['TextCtrl_Fruit']
>>>>>>>> lst = dlg.Controls['ListBox_Basket']
>>>>>>>> if not lbc.IsClickEvent(event): pass
>>>>>>>> elif name == 'Button_Add':
>>>>>>>> fruit = txt.GetValue()
>>>>>>>> if len(fruit) == 0: return lbc.DialogShow(title='Alert',
>>>>>>>> message='No
>>>>>>>> fruit to add!')
>>>>>>>> lst.Append(fruit)
>>>>>>>> index = lst.GetCount() - 1
>>>>>>>> lst.SetSelection(index)
>>>>>>>> txt.Clear()
>>>>>>>> elif name == 'Button_Delete':
>>>>>>>> index = lst.GetSelection()
>>>>>>>> if index == -1: return lbc.DialogShow(title='Alert',
>>>>>>>> message='No
>>>>>>>> fruit
>>>>>>>> to delete!')
>>>>>>>> lst.Delete(index)
>>>>>>>> if index == lst.GetCount(): index -= 1
>>>>>>>> if index>= 0: lst.SetSelection(index)
>>>>>>>>
>>>>>>>> # Main program
>>>>>>>> app = lbc.App()
>>>>>>>> dlg = lbc.Dialog(title='Fruit Basket')
>>>>>>>> dlg.AddTextCtrl(label='Fruit')
>>>>>>>> dlg.AddListBox(label='Basket')
>>>>>>>> dlg.Complete(buttons=['Add', 'Delete'], handler=OnEvent)
>>>>>>>> app.Exit()
>>>>>>>>
>>>>>>>> __________
>>>>>>>> View the list's information and change your settings at
>>>>>>>> //www.freelists.org/list/programmingblind
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Have a great day,
>>>>>>> Alex (msg sent from GMail website)
>>>>>>> mehgcap@xxxxxxxxx; http://www.facebook.com/mehgcap
>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>
>>>>
>>>
>>
>>
> __________
> View the list's information and change your settings at
> //www.freelists.org/list/programmingblind
>
>
--
Have a great day,
Alex (msg sent from GMail website)
mehgcap@xxxxxxxxx; http://www.facebook.com/mehgcap
__________
View the list's information and change your settings at
//www.freelists.org/list/programmingblind
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