[vlc] Re: GUI development based on wxwidgets

Mon Nov 6 05:19:59 CET 2006

Hi Liu,

i would advice you to create a class derived from wxDialog, that would
get all the needed parameters (vlc structures).
This class would handle any event on OK/Cancel button. It would use the
vlc structures to get the info you need.
It would be much easier. See the wxDialog sample in wxwidgets directory
for more information.

On the question about how to dispatch the dialog, well it's kind of easy
as you just need to instanciate your inherited class wxDialog anytime
you think it's needed and show it.

You can also call it from the Main wxApp event handler (generate and
event, post an event, handle the event). If i recall, aMule (coded in
wxWidgets), does use a nice way to handle events. You should check the code.

Good luck

Sid

Liu Andy a ¨¦crit :
>
> To give you more details, I wrote a function "abc()" similar to
> Interface::OnAbout(...) in .../modules/gui/wxwidgets/interface.cpp,
> then call it from .../modules/demux/livedotcom.cpp,
>
> compile is OK, but problem came in linking stage, it shows "undefined
> reference to abc()"
>
> Then what should I do to let "livedotcom" find approriate object
> containing "abc()" ??
>
> Thanks a lot !!
>
>
>> From: "Liu Andy" <liuzhihua_2003 at hotmail.com>
>> Reply-To: vlc at videolan.org
>> To: vlc at videolan.org
>> CC: vlc-devel at videolan.org, videolan-announce at videolan.org
>> Subject: [vlc] Re: GUI development based on wxwidgets
>> Date: Sun, 05 Nov 2006 19:03:15 +0800
>>
>> Hi,
>>
>> Could anybody show any idea about questions below, thanks !!
>>
>>
>> "
>> Hi All,
>>
>> Sorry to bother you guys again.
>>
>> What I'm trying to do is as following: 1. When some inernal event
>> happens, e.g. incoming control message says that current network
>> bandwidth available is very limited, then VLC media player shall
>> popup a window or message box alerting user about the situation. Note
>> that this popup shall NOT block anything else. 2. After user hits
>> some buttong, e.g. "OK" or "Cancel", VLC media player shall be able
>> to do some further operation, e.g. stop playing video automatically.
>> 3. items above are based on WxWidgets. 4. VLC0.8.5 + FC4
>>
>> Normally, GUI seems to be triggered by end user, e.g. clicking
>> operations, but it's not the case here, instead it's some internal
>> event which triggers window shown. Meanwhile, GUI shall still be able
>> to capture user's clicking on "OK" button of the window.
>>
>> .../wxwidgets/interface.cpp, "void Interface::OnAbout(
>> wxCommandEvent& WXUNUSED(event) )" This seems to be the event handler
>> of "About" item in menu, which just uses wxMessageBox() to show the
>> box, is this a useful reference for me ??
>>
>> I also checked development tool for WxWidgets under Fedora, but my
>> requirement seems too simple for those tools... I still have to
>> integrate code into VLC code base after GUI object is ready.
>>
>> Please show me some hints and a quick solution if you are familiar
>> with VLC + WxWidgets, thanks a lot.
>> "
>>
>>> From: "Liu Andy" <liuzhihua_2003 at hotmail.com>
>>> Reply-To: vlc at videolan.org
>>> To: vlc at videolan.org
>>> CC: vlc-devel at videolan.org, videolan-announce at videolan.org
>>> Subject: [vlc] Re: GUI development based on wxwidgets
>>> Date: Thu, 02 Nov 2006 22:33:36 +0800
>>>
>>> Hi All,
>>>
>>> Sorry to bother you guys again.
>>>
>>> What I'm trying to do is as following:
>>> 1. When some inernal event happens, e.g. incoming control message
>>> says that current network bandwidth available is very limited, then
>>> VLC media player shall popup a window or message box alerting user
>>> about the situation. Note that this popup shall NOT block anything
>>> else.
>>> 2. After user hits some buttong, e.g. "OK" or "Cancel", VLC media
>>> player shall be able to do some further operation, e.g. stop playing
>>> video automatically.
>>> 3. items above are based on WxWidgets.
>>> 4. VLC0.8.5 + FC4
>>>
>>> Normally, GUI seems to be triggered by end user, e.g. clicking
>>> operations, but it's not the case here, instead it's some internal
>>> event which triggers window shown. Meanwhile, GUI shall still be
>>> able to capture user's clicking on "OK" button of the window.
>>>
>>> .../wxwidgets/interface.cpp, "void Interface::OnAbout(
>>> wxCommandEvent& WXUNUSED(event) )"
>>> This seems to be the event handler of "About" item in menu, which
>>> just uses wxMessageBox() to show the box, is this a useful reference
>>> for me ??
>>>
>>> I also checked development tool for WxWidgets under Fedora, but my
>>> requirement seems too simple for those tools... I still have to
>>> integrate code into VLC code base after GUI object is ready.
>>>
>>> Please show me some hints and a quick solution if you are familiar
>>> with VLC + WxWidgets, thanks a lot.
>>>
>>>
>>>
>>>> From: RafaÃ«l CarrÃ© <funman at videolan.org>
>>>> Reply-To: vlc at videolan.org
>>>> To: "Liu Andy" <liuzhihua_2003 at hotmail.com>
>>>> CC: vlc at videolan.org,
>>> vlc-devel at videolan.org,videolan-announce at videolan.org
>>>> Subject: [vlc] Re: GUI development based on wxwidgets
>>>> Date: Mon, 30 Oct 2006 15:45:30 +0100
>>>>
>>>> Le Mon, 30 Oct 2006 22:05:25 +0800,
>>>> "Liu Andy" <liuzhihua_2003 at hotmail.com> a Ã©crit :
>>>>
>>>> > Currently I use 0.8.5, does it also support "QT4-based interface"
>>>> ? I
>>>> > can only see wxwidgets and Skins2...
>>>>
>>>> No, 0.8.5 and 0.8.6 use only wxwidgets and skins2
>>>>
>>>> the development version use QT too, but it is not finished, and
>>>> quite unstable.
>>>>
>>>> > AND, if I use some QT designer
>>>> > (e.g. KDevelop) to get my components well prepared, how can I merge
>>>> > it into current framework, how much effort does that need ?
>>>> >
>>>>
>>>> I think that should be easy if you edit existing dialogs.
>>>>
>>>> If you want to create new, you could do it from scratch
>>>>
>>>> But once these dialogs are made, you have to integrate code that use
>>>> it, and you'll have to modify the source.
>>>>
>>>> > I can see from code that "About" dialog is created using wxwidgets,
>>>> > right ? I've thought that it may be a good reference for me, hehe.
>>>> > But I just don't know if it's feasible to simulate it within code...
>>>>
>>>> Well you have the choice, I'm sure good GUI editors exist for
>>>> WxWidgets
>>>> too but I don't know any.
>>>>
>>>> -- 
>>>> RafaÃ«l CarrÃ©
>>>
>>>
>>>> << signature.asc >>
>>>
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