[Marble-devel] HOWTO (in progress) - build a libmarble application on windows with Qt Creator, MinGW, CMake

[Sylvain Paré]

Hi every one.
So I have updated this page
http://techbase.kde.org/Projects/Marble/WindowsCompiling
And I have committed this new one
http://techbase.kde.org/Projects/Marble/MarbleWindows
Let me know about some bad english skill... :) and/or lake of explanations.
And what do you think about.
For me my work is done here.
Thanks.
CU

Sylvain (aka GarthPS)


2010/5/27 Sylvain Paré <sylvain.pare at gmail.com>

> Hi Dennis,
>
> my answers in line
>
>
>  On 21.05.2010 17:48, Sylvain Paré wrote:
>>
>> So here the trick : "mingw32-make *release*" !
>> the release build does not return error when we launch it!
>>
>>  Both debug and release builds work for me, none of them too reliable
>> though. Sometimes crashing right at start, sometimes later, sometimes never.
>>
>
> I mean for my project, not for marble. I confirm again today!
> I think it come from the fact you don't use the same version of Qt
> here is my .pro file :
> ############################
> QT += network
> QT += xmlpatterns
> CONFIG += warn_on \
>           thread \
>           qt \
>           debug
> CONFIG += console
>
> TEMPLATE = app
> TARGET = EasyRun
> DESTDIR = bin
> DEPENDPATH += . \
>     src
> INCLUDEPATH += . \
>     src
> OBJECTS_DIR = temp/
> MOC_DIR = temp/
> UI_HEADERS_DIR = temp/
> UI_SOURCES_DIR = temp/
>
>
> win32 {
>     INCLUDEPATH += $$quote(C:/Program Files/marble/include/marble)
>     LIBS += $$quote(C:/Program Files/marble/libmarblewidget.dll)
> }
> unix {
>     LIBS += -L/usr/local/lib \
>     -lmarblewidget
> }
>
> # Input
> HEADERS += ...
> SOURCES += ...
> RESOURCES += ...
> FORMS += ...
> ############################
> So when I build my app with debug mode I have "Microsoft Visual C++ Runtime
> Library" "runtime error"
> which is not the case in release mode.
> (...a moment pass...)
> Ok I took a look at the differences between Makefile.Debug and
> MakeFile.Release
> and the meaning point is that in debug qmake asks to link against
> -lQtXmlPatterns*d*4 -lQtGui*d*4 -lQtNetwork*d*4 -lQtCore*d*4 and not
> -lQtXmlPatterns4 -lQtGui4 -lQtNetwork4 -lQtCore4
> So that is it! Changing those libs works!
> I am wondering if it is not Qt's guys that have build those debugging
> libraries for VS instead of mingw...
> Some Qt's guys hanging here?
>
>
>  >> The marble widget in my app is just a black rectangle where right and
>> >> left clicks work as usual ( contextual menu etc)
>> >> Like with the standalone marble application => NO map! instead of
>> >> being blue it is black...
>> >> I think it is normal as it does not work in marble itself.
>> >> So again : ANYONE having a clue??
>> >>
>> > Did you set a valid map theme on the MarbleWidget in your application?
>> >
>> Another thing: I think (correct me if I'm wrong) that in Windows plugins
>> and data directories are searched relative to the application directory.
>> If you use it in your own application, make sure to copy those two
>> directories from the marble install over: If you have C:\MyApp\foo.exe,
>> make sure to copy the data and plugins directories from the Marble
>> install directory to C:\MyApp\
>>
>
> Ok you score! I needed to copy marble\data\ to MyApp\
> ( now it is not a big black rectangle but as in marble a big blue marble )
> But tiles go to C:\Documents and Settings\Administrateur\Application
> Data\.marble\data\maps\earth
> and not to C:\Program Files\Marble (and this both for Marble 0.8.0 or
> MarbleSVN)
>
>
> To elaborate on this as well: You need a release build of Marble
>> (otherwise QtDesigner complains) and you need to copy
>> libmarblewidget.dll (the release version, not the one ending with a 'd')
>> to a path that QtDesigner will know. To be on the safe side, copy it
>> next to designer.exe in the Qt bin folder. Also copy the data and
>> plugins directories there (see above). Once that is done, QtDesigner
>> will show the three Marble plugins.
>>
>> If it still is not working, check the Help => Plugins dialog in
>> QtDesigner. For each failing plugin, it will show an error description.
>> If it complains about mixed debug and release build, correct that
>> setting in CMakeCache.txt (CMAKE_BUILD_TYPE). If it complains about a
>> missing module and doesn't tell you which one it misses, use  Dependency
>> Walker [1]: Open the Marble designer plugin in it to see which dependent
>> dlls are resolved and which not. Ignore wer.dll and ieshims.dll on
>> Windows XP. Copy the ones not resolved to the Qt bin folder. That was
>> only libmarblewidget.dll here. Adding the Marble directory to your PATH
>> variable should work as well.
>>
>
> you are right Qt Designer complains about mixing debug and release plugin.
> I set CMAKE_BUILD_TYPE to "Release" and it resolved the missing download of
> openstreetmap tiles! :p
> (a "-DCMAKE_BUILD_TYPE=Release" should be better)
> But now Qt Designer complains about unfindable plugin (in fact it is
> looking for libmarblewidget.dll )
> To solve this you can put libmarblewidget.dll and data\ directory near
> qtdesigner.exe ( or copy only data\ and add marble in your system path)
>
> Anyway step two, building a libmarblewidget application passed!
>> Here is the way (i will not put it on the techbase untill I don't see
>> openstreetmap map in my app):
>>
>> Probably none of the plugins are loaded. Check the settings menu, any
>> plugins listed there? If the qnam networking plugin is not loaded, OSM
>> downloads don't happen and the map appears just blue (tile downloading
>> always fails).
>>
>
> So, now step two, building a libmarblewidget App, is passed!
> I will sum it up on the techbase too. I still have one issue : I have tiles
> in cache so my App shows me openstreetmap in marblewidget
> but the widget don't want to download more tiles.. I had to copy plugin\
> directory near myapp.exe to enable the download.
> It is quite a PITA all those relative path (what wonderful it is to be on
> GNU/Linux..)
> So if someone knows how to solve this missing download with a proper way..
>
> Next step is making qtdesigner working.
> oups already done :p (see above)
> So we need to make an howto on the techbase too.
>
> I will let you know here when I will release those howto.
> CU
>
> Sylvain (aka GarthPS)
>
>
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