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

[Sylvain Paré]

for those interested..
http://www.digikam.org/drupal/node/525

2010/6/7 Sylvain Paré <sylvain.pare at gmail.com>

> 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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