On Fri, Jul 6, 2012 at 5:44 PM, Till Oliver Knoll <till.oliver.kn...@gmail.com> wrote: > Sivan, it seems to me that you're stumbling over the most basic steps in > developing a Qt application, all of which could've been resolved by reading > the docs and spending a fine day or so with the tutorials. > So, as stated before, I somewhat believed that Qt can be used even when when you just know parts of it and do not master all of its mechanics and internals . I now realize that the MOC mandates this understanding. QML and the Qt creator made me think I could actually drop that file download snippet "as is" and use as I do in Perl, C, Python- I now realize this is an unreal expectation.
> And it takes off course a decent education in programming, plus if you bring > along experience in other frameworks you should be able to apply that > knowledge to Qt in no time! I have been programming since I was about 6 yo, going from Basic to assembly to Pascal to C/GTK then even C++ for around 2 years, and since 2004 I have been developing both professionally and as a hobby in Python. I think I have decent education in programming (how would that be defined anyways?) and I know my way quite thoroughly in the realms of object oriented methodology and design and the processes around it. Given that, I mistakenly thought I could apply this over 12 years of knowledge (including the creation of a soft float toolchain and debian based OS for MIPSel from scratch) when implementing this very simple file download. I was wrong and I apologize for the noise. > > > I am just saying that because you made the impression to me that you're > expecting a given toolkit to quickly make you a wizard - when you're not. > Do you imply that in order to achieve what should otherwise be a dead simple task (again, I want to concentrate on the "business logic" and not have to care of the HTTP RFC) using Qt I must become a wizard first? Then I'm really on the wrong mailing list...:/ > > So you've asked how to download a file in a single line (or so I remember). > I'll give you a few more: > > QNetworkAccessManager *manager = new QNetworkAccessManager(this); > > connect(manager, SIGNAL(finished(QNetworkReply*)), > this, SLOT(replyFinished(QNetworkReply*))); > > manager->get(QNetworkRequest(QUrl("http://qt.nokia.com"))); > > And yes, that's taken straight from the Qt docs! > I am aware of those docs, in fact I used them here: http://projects.developer.nokia.com/qactus/browser/Qactus/mainwindow.cpp > Off courses it doesn't deal with error conditions, aborting/resuming/pausing > a download, handle the received data (hint: QFile! Just in case...)... > Right, so attaching QFile to that did not come to mind. More over, asking around more than several times some "expert qt wizards" did not yield one coherent answer showing this could be assisted by an stdlib function to handle. I'll see about connecting this with QFile, thanks for the tip. > So if you're unfamiliar with Qt signals/slots (and it seems very likely, > given your questions about moc/qmake), there's a chapter about that as well. > And while you're at it, read the chapter about qmake as well. The Qt Object > Model won't hurt either. I'll set to become a qmake expert before I attempt any further Qt development, but I am quite familiar with signal and slots as the previous code link would prove. > > After that, if you have conceptional questions or still stumble over a > particular problem, you're welcome to ask. > I kind of feel myself welcome to ask anyways :) At least we have a nice community to compensate of confusing docs and API incompleteness ;) > But don't try to convince people that "rapid prototyping" was the way to go > and every toolkit should start implementing > "doWhatIMean(iHaveNoClueWhatsoever)" methods. Because for me that had a > taste of "I don't want/am unable to learn"! Take a look at what I've done over the years so far in open source (debian / ubuntu / gnome included) . I assure you I have more clue than most of the people you'd meet randomly in an conference. It is really not about doing what I want when I do not have a clue but having API completeness. Network stack is severely low leveled and limited in Qt and I have some Nokia experts vouching for that that I won't disclose their names :) That being said, I will not expect Qt to be my compiled Python anymore. Thanks for your reply! -Sivan _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest