Brainstorm

Two years ago I asked myself the same question. My solution: getting the QtCreator source code and study it. QtCreator is exactly the kind of application you descibe in your post. It is very well designed and you can learn a lot from it - especially how to make a modular, plugin based application. Another good example for such a plugin based framework is the "Generic Component Framework":http://www.vcreatelogic.com/products/gcf/. You can use this framework out of the box without the need to design your own. Another great source for learning is the "Qtilities":http://www.qtilities.org/ library.

code works if I comment call of DrawThemeTextEx It draws may be need to set clipping before call it? OMG! @typedef HRESULT (*PDrawThemeTextEx)( HTHEME hTheme, HDC hdc, int iPartId, int iStateId, LPCWSTR pszText, int iCharCount, DWORD dwFlags, LPRECT pRect, const DTTOPTS *pOptions );@ I forget typedef WINAPI Should be @HRESULT (WINAPI *PDrawThemeTextEx)( HTHEME hTheme, HDC hdc, int iPartId, int iStateId, LPCWSTR pszText, int iCharCount, DWORD dwFlags, LPRECT pRect, const DTTOPTS *pOptions );@ All works!!! Thanks all PS. never ever copy-paste function declaration from MSDN!!!

I moved this thread to the brainstorm forum, as it's only marginally Qt related.

[quote author="loladiro" date="1309941231"]Or something like this @SELECT a FROM (SELECT a, COUNT(DISTINCT b) as c a_b WHERE b IN(1,4) GROUP BY a HAVING c=2)@[/quote] Good, that's what I want.

Thanks Andre. I think I know how I'll go about and design this.

If one is trying a use a class and looks at the documentation, it is quite obvious. I also understand that Qt documentation provides a list of "obsolete classes":http://doc.qt.nokia.com/4.7/obsoleteclasses.html each version. But unless you're constantly looking to keep the code up-to-date, you might not keep track of it. I usually compile the new version.. fire up assistant and continue working on the client's requirements. Maybe, it would be good to make that page more prominent and have a more in-your-face-visibility web page for it here on devnet. But then again, i don't see too many classes on the list. Anyhoo...

Damnit, curiosity killed the cat again....

Of course. I can post a screenshot as soon as I have something interesting.

I think maintainability is more important than you avoiding an if statement. It is hard to understand what piece of data is where if you use an array to store them. That may lead to bugs in Qt in the future. So please, don't. Adding a convenience function that implements operator is fine by me, but the implementation would basically look like FrankZ's proposal. I am not sure if adding a size to a point should yield another point, but perhaps it should. That would be easy to implement. You might want to supply a merge request containing the patch and a use case and/or other argumentation why this is needed.

Take a look at QInputContext, that's the plugin API you can use for your input method.

You could use vortex http://www.aspl.es/vortex/doc.html its a BEEP Core protocol mapped into TCP/IP layer Some of its features are: Robust and well tested BEEP implementation with a threaded design (non-blocking parallel comunications), written in ANSI C. Context based API design making the library stateless. Support to run several ejecution contexts in the same process. A complete XML-RPC over BEEP RFC 3529 with a IDL/XDL protocol compiler (xml-rpc-gen). A complete TUNNEL (RFC3620) support. Complete implementation for TLS and SASL profiles. Modular design which allows to use only those components needed. Support to proxy BEEP connections through HTTP proxy servers. Support for single threaded (no async notification) programming. They even have a Javascript BEEP implementation. If you don't know what BEEP is. http://en.wikipedia.org/wiki/BEEP BEEP (Blocks Extensible Exchange Protocol) is a framework for creating network application protocols. It includes an application protocol kernel for connection-oriented asynchronous interactions, and can be used both for binary and text messages within the context of a single application user identity.[1] BEEP is intended to abstract-out the common features that have traditionally been duplicated in each protocol implementation. BEEP (formerly called BXXP) typically runs on top of TCP and allows the exchange of messages called 'frames'. Unlike HTTP (and similar protocols), either end of the connection can send a frame at any time, and 'questions' and 'replies' can be interleaved easily. BEEP also includes facilities for encryption and authentication, and is highly extensible. BEEP was designed by Marshall Rose, who also worked on the POP3, SMTP, and SNMP protocols.[2 It works on Windows, Mac, Linux

That's the whole point. You should try to avoid forbidding the user to do something just because it is convenient for you as a programmer. Instead, make actions undoable, for instance. Always keep in mind, that your user is trying to achieve something with your program. Your program is a tool, nothing more. That tool should support whatever the user is trying to do, and not hinder him in his way to do that. Popup boxes disrupt the flow of work, and of thought and focus of the user. They can also scare the user if you start giving warnings they may have trouble to comprehend. That hinders him in his task. So, rather than spending time on fancy graphics effects that are really the task of the window manager to handle anyway, I would suggest rather to spend your energy on making sure the user gets done what he want to get done without being bothered or scared by your application with such dialogs.

I am sorry, I am not deep enough into the issue to give you any advice on the actual contents on this discussion.

Looks like what is needed for OP is QTextStream::operator>>(). It reads one word from QIODevice (where words are separeted with QChar::isSpace() chars).

QMap is perfect solution in this case. I'm little late .... :) Thanks guy!

I'd been toying with this idea for a while, but the number of formats, and my (in)competence, had also put me off. One idea I had was to use Qt Plugins for the different formats, but that leads me to the following questions: Does Qt on Symbian support plugins (I assume it does), and also can plugins be bundled on the Ovi store as additions to existing apps?

[quote author="stuk" date="1305300505"]What title is this?!?!?![/quote] I modified the title a bit to make it somewhat shorter and easier to read. Edit: Also moved forum, as this is actually a bit off topic seeing that the SDK crash is more probably the result of the RAID failure than the cause of it...

Being new to Qt and having forgotten 90% of my C++ I went with the path of least resistance at the moment regarding the models :) I will probably have to change something later but for the moment it is working for me. I have just about finished reorganising the files if anyone wants to comment.

So far it seems to be working for me; I've got xcode4 installed from the app store. I did have to re-install qt creator. I think qt creator is actually using gcc still; but I can try out xcode4 and still work with qt creator and build and run things there, so I'm happy for now. I would really like to see official xcode4 support though :)