Debug resource system

[pablow]

Hi everyone

I have a problem using the resource system. I am not able
to display images linked into the resource system.

My project contains a resource.qrc and plugin.pro as follows:

<!DOCTYPE RCC><RCC version="1.0">
 <qresource prefix="/img">
	    <file alias="explore">resources/eye.png</file>    
	    <file alias="export">resources/note_go.png</file>    
	    <file alias="open">resources/delete.png</file>  
	    <file alias="close">resources/add.png</file>  
	    <file alias="options">resources/cog-edit-icon.png</file>  
	    <file alias="reset">resources/arrow_undo.png</file>
 </qresource>
 </RCC>

<!DOCTYPE RCC><RCC version="1.0">
 <qresource prefix="/img">
	    <file alias="explore">resources/eye.png</file>    
	    <file alias="export">resources/note_go.png</file>    
	    <file alias="open">resources/delete.png</file>  
	    <file alias="close">resources/add.png</file>  
	    <file alias="options">resources/cog-edit-icon.png</file>  
	    <file alias="reset">resources/arrow_undo.png</file>
 </qresource>
 </RCC>

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ROOTDIR = $$_PRO_FILE_PWD_
SRCDIR = $$ROOTDIR/src
DESTDIR         = lib
CUBE_H          = $(CUBE_HEADERS)
CUBE_INC= $$CUBE_H/cube \
         $$CUBE_H/cubew \
         $$CUBE_H/gui
 
QCUSTOMPLOTDIR = $$ROOTDIR/3rd-party/qcustomplot 
 
INCLUDEPATH    += . .. $$CUBE_INC $$QCUSTOMPLOTDIR $$SRCDIR $$SRCDIR/widgets $$SRCDIR/backend
LIBS           += 
 
QMAKE_CXXFLAGS += -std=c++11
QT += widgets printsupport
 
TEMPLATE        = lib
CONFIG         += plugin silent
 
RESOURCES     = $$ROOTDIR/resources.qrc
 
HEADERS         = $$files($$SRCDIR/*.h) \
				  $$files($$SRCDIR/widgets/*.h) \
				  $$files($$SRCDIR/backend/*.h) \
			      $$files($$QCUSTOMPLOTDIR/*.h) 
 
SOURCES         = $$files($$SRCDIR/*.cpp) \
				  $$files($$SRCDIR/widgets/*.cpp) \
				  $$files($$SRCDIR/backend/*.cpp) \
                  $$files($$QCUSTOMPLOTDIR/*.cpp) 
 
target.path = $$PREFIX
target.CONFIG += no_check_exist
 
INSTALLS += target
                  
TARGET          = $$qtLibraryTarget(ExplorationPlugin)
OBJECTS_DIR = ./obj
MOC_DIR = ./moc
RCC_DIR = ./obj

ROOTDIR = $$_PRO_FILE_PWD_
SRCDIR = $$ROOTDIR/src
DESTDIR         = lib
CUBE_H          = $(CUBE_HEADERS)
CUBE_INC= $$CUBE_H/cube \
         $$CUBE_H/cubew \
         $$CUBE_H/gui
         
QCUSTOMPLOTDIR = $$ROOTDIR/3rd-party/qcustomplot 

INCLUDEPATH    += . .. $$CUBE_INC $$QCUSTOMPLOTDIR $$SRCDIR $$SRCDIR/widgets $$SRCDIR/backend
LIBS           += 

QMAKE_CXXFLAGS += -std=c++11
QT += widgets printsupport

TEMPLATE        = lib
CONFIG         += plugin silent

RESOURCES     = $$ROOTDIR/resources.qrc

HEADERS         = $$files($$SRCDIR/*.h) \
				  $$files($$SRCDIR/widgets/*.h) \
				  $$files($$SRCDIR/backend/*.h) \
			      $$files($$QCUSTOMPLOTDIR/*.h) 
			      
SOURCES         = $$files($$SRCDIR/*.cpp) \
				  $$files($$SRCDIR/widgets/*.cpp) \
				  $$files($$SRCDIR/backend/*.cpp) \
                  $$files($$QCUSTOMPLOTDIR/*.cpp) 

target.path = $$PREFIX
target.CONFIG += no_check_exist

INSTALLS += target
                  
TARGET          = $$qtLibraryTarget(ExplorationPlugin)
OBJECTS_DIR = ./obj
MOC_DIR = ./moc
RCC_DIR = ./obj

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I try to display images in a QIcon but it won't be displayed:

return QIcon( ":/img/explore" );

return QIcon( ":/img/explore" );

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As you can see I am building a library as target.
I get no warnings/errors during the build. I also
compared the file size of the resulting library if I
include different sized images into the resource.qrc.
And - as expected - the size of the resulting library changes.
Therefore, I assume linking the resources into the library is fine.

Do you have any ideas what can be wrong?
Is there an option to show all available resource strings available
in the resource system?

Thanks in advance

[anda_skoa]

Is there an option to show all available resource strings available
in the resource system?

QDir can operate on the resource directory tree just like on the actual filesystem.
I.e.

QDir dir(":/");

QDir dir(":/");

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would be the equivalent of the root directory.

Cheers,
_

[pablow]

Ok, thank you.
In fact, my resources are not included in the resource tree at all.
I only see the resources of the parent qt application using my library.

My library is a dynamic library. Therefore, there should be no need to
use Q_INIT_RESOURCE(), right?

[pablow]

Solved:

The problem was that both the main application and my library were using
"resources.qrc" as file name for the resource file. Apparently, that did not work.
I renamed the resource file in my library project and now it works.