[CMake] QT3 and embedding images

[Tim Schooley]

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Hi again,

I've managed to get it working, with the help of post
http://www.cmake.org/pipermail/cmake/2005-July/007009.html

Here's the macro:

- ----
#
# QT3 Macro for embedding image files into source
#
# EMBED_TARGET  = binary to link to, i.e. sbvd_manager
# EMBED_SOURCE_OUTPUT = outputted .cpp file
# SOURCE_IMAGES = list of images to embed
#
Macro(QT_EMBED_IMAGES EMBED_TARGET EMBED_SOURCE_OUTPUT SOURCE_IMAGES)
    Add_Custom_Command( OUTPUT ${EMBED_SOURCE_OUTPUT}
                        COMMAND ${QT_UIC_EXECUTABLE}
                                -embed ${EMBED_TARGET}
                                ${${SOURCE_IMAGES}}
                                -o ${EMBED_SOURCE_OUTPUT} )
EndMacro(QT_EMBED_IMAGES EMBED_TARGET EMBED_SOURCE_OUTPUT SOURCE_IMAGES)
- ----

And here's how I'm calling it:

- ----
Set (GUI_IMAGE_SOURCE ${PROJECT_BINARY_DIR}/embed_src.cpp)
Set (GUI_IMAGES ${PROJECT_SOURCE_DIR}/images/image1.png ....)
QT_EMBED_IMAGES(program ${GUI_IMAGE_SOURCE} GUI_IMAGES)

Add_Executable(program ${src} ${GUI_IMAGE_SOURCE})
- ----

Hope this helps someone! Thanks again for the help.

/Tim

Alexander Neundorf wrote:
> On Friday 24 August 2007 07:41, Tim Schooley wrote:
>> Hi folks,
>>
>> I've recently ported my project to CMake from standard Makefiles, but
>> missed a vital point (only just noticed by running the damn thing!).
>>
>> I've looked around, but can't find the answer: How to I embed images
>> into QT3 apps with CMake ? The Makefile generated from qmake was
>> something like:
>>
>> ----
>>
>> .obj/qmake_image_collection.o: .ui/qmake_image_collection.cpp
>>     $(CXX) -c $(CXXFLAGS) $(INCPATH) -o .obj/qmake_image_collection.o
>> .ui/qmake_image_collection.cpp
>>
>> .ui/qmake_image_collection.cpp: images/gtk-about.png
>> 	$(UIC)  -embed program images/gtk-about.png ... -o
>> .ui/qmake_image_collection.cpp
>>
>> ----
>>
>> Should I make custom targets for all this, or is there something simpler?
> 
> Is this just for one image ?
> 
> Yes, you need add_custom_command(), if it's for more than one image you should 
> put it in a macro, something like this:
> 
> macro(embed_images src img)
>   add_custom_command(OUTPUT ${src}
>                      COMMAND ${QT_UIC...} ...
>                      DEPENDS ${img} )
> endmacro(embed_images src img)
> 
> 
> embed_images("${CMAKE_CURRENT_BINARY_DIR}/image.cpp"  about.png)
> add_executable(foo file1.cpp ... "${CMAKE_CURRENT_BINARY_DIR}/image.cpp")
> 
> If it's more than one image you can also put this in a foreach() loop inside 
> the macro.
> 
> If you have that working, it would be nice if you could post the script here.
> 
> Bye
> Alex
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> 
> 
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