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From: Ulrich Eckhardt on 21 Jan 2010 17:11 Mathias Gaunard wrote: > On 21 jan, 10:43, Maciej Sobczak <see.my.homep...(a)gmail.com> wrote: >> It just happens that some company that is involved in the Java >> business provides the platform implementation that has a GUI library >> (and battery) included. >> Interestingly, this is also true for C++. ;-) > > What company exactly is involved in C++ and provides a platform- > independent GUI library? He didn't say independent! ;) With that, it's clear that this is a reference to an OS vendor that also supplies C++ compilers which in turn come with a GUI library, i.e. Microsoft, VC++ and MFC. Uli -- Sator Laser GmbH Geschäftsführer: Thorsten Föcking, Amtsgericht Hamburg HR B62 932 [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ]
From: Thomas Richter on 22 Jan 2010 08:50 Maciej Sobczak wrote: > On 22 Sty, 03:06, Mathias Gaunard <loufo...(a)gmail.com> wrote: > >>> It just happens that some company that is involved in the Java >>> business provides the platform implementation that has a GUI library >>> (and battery) included. >>> Interestingly, this is also true for C++. ;-) >> What company exactly is involved in C++ and provides a platform- >> independent GUI library? > > http://qt.nokia.com/ > http://www.ultimatepp.org/ > > I'm sure there are others, but for the sake of argument these two > should suffice. Oh, definitely. However, these aren't part of the C++ standard in the same sense swing is part of the Java standard. Of course, the latter is to my knowledge not an ISO standard as C++ is, but for a user that matters little. C++ *does* IMHO have an acceptance problem for writing easily portable GUIs for this reason. So long, Thomas -- [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ]
From: Martin B. on 22 Jan 2010 08:46 Alex Strickland wrote: > (...) > To all/any > > In a related vein, I have a lot of old Borland code to upgrade/rewrite. > I have > recently started trying to use the standard library much more, and I > sure am > happy to swap all those "new []" for "vector". Hand in hand I would like > to use > std::string more. > > So there is tons of code using AnsiString which seems quite different to > std::string. If I upgrade to the latest version there will be tons of > code which > should probably change to UnicodeString which seems similarly unrelated to > std::wstring. > > I thought I'd look at qt, and what do I find, QString! An even quicker > look at > U++ and I find String. > > What is the problem with std::string (or std::wstring) and GUI libraries? > The real question is: "What is the problem with std::string (or std::wstring)"? Somehow it seems that std::wstring is lacking certain features (be it actual features, be it usability). Rather than add a few utility functions to use std::wstring, deveolpers seems to prefer writing their own string class. Add to it that GUI libraries often have a certain Object Hierarchy it certainly helps to have a string class that fits into that. If it's halfway decent I'm pretty sure you will be happier with UnicodeString that with std::string my002, Martin -- [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ]
From: Edward Diener on 22 Jan 2010 22:34 Thomas Richter wrote: > Maciej Sobczak wrote: >> On 22 Sty, 03:06, Mathias Gaunard <loufo...(a)gmail.com> wrote: >> >>>> It just happens that some company that is involved in the Java >>>> business provides the platform implementation that has a GUI library >>>> (and battery) included. >>>> Interestingly, this is also true for C++. ;-) >>> What company exactly is involved in C++ and provides a platform- >>> independent GUI library? >> >> http://qt.nokia.com/ >> http://www.ultimatepp.org/ >> >> I'm sure there are others, but for the sake of argument these two >> should suffice. > > Oh, definitely. However, these aren't part of the C++ standard in the > same sense swing is part of the Java standard. Of course, the latter is > to my knowledge not an ISO standard as C++ is, but for a user that > matters little. C++ *does* IMHO have an acceptance problem for writing > easily portable GUIs for this reason. Java also has SWT, so Swing is not its only popular GUI library. A language implementation can offer a GUI library as part of what it considers its standard library, and it can also be supported by popular 3rd party libraries. C++ has a number of 3rd party GUI libraries but none which is considered to be part of the standard library. Python really has no GUI library either although it ships with TK/TCL, but there are a number of other 3rd party GUI libraries it supports. C# ( and C++/CLI ) has its own GUI library, which is part of the .Net Framework classes. There are advantages and disadvantages to promoting a single GUI library. The most obvious advantage is that everyone programs to just one GUI standard. The most obvious disadvantage is that with a single GUI library it may be very difficult to cover the different GUIs of the most popular OSs ( generally Windows, Linux, Mac ). In general I have found that no single GUI library in any language is really excellent covering even the major diffwerent GUIs which exist in the popular OSs for which one might want to write a cross-platform application. -- [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ]
From: Robert Hairgrove on 23 Jan 2010 04:53
Edward Diener wrote: > In general I have found that no single GUI library in any language is really excellent covering even the major diffwerent GUIs which exist in the popular OSs for which one might want to write a cross-platform application. > When was the last time you looked at the Qt libs? -- [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] |