从集合中删除文件 [英] Removing files from a set

问题描述

我有一个目录包含属于一个组成一个Qt项目的文件，而其他文件没有。也就是说，文件A.cxx，ADriver.cxx和A.ui都属于需要使用Qt选项编译的集合。然后我有一个文件B.cxx是非qt。然后C.cxx，CDriver和C.ui是另一个Qt集。有几十个，所以我想使用globs而不是手动写每个add_executable。我正在想像做

  for（所有ui文件）
从ui创建一个可执行文件， .cxx和* Driver.cxx
 end 
  

（不在上面的循环中使用）是非Qt，需要自己编译我的问题是如何减文件从一个集合。也就是说，使用上面描述的方法，有一个所有的cxx文件的集合，并删除那些在.ui文件循环中使用这是可能的。有更好的方法来做这样的事情吗？

 文件（GLOB ALL_SRCS * ）
  

然后选择ui文件并为它们创建Qt目标，从 ALL_SRCS 列表：

 文件（GLOB UIS * .ui）
 
 foreach（ui $ {UIS}）
 get_filename_component（f $ {ui} NAME_WE）
 
＃Do Qt stuff 
 qt4_wrap_ui（$ {f} uis $ {ui}）
 qt4_wrap_cpp（$ {f} srcs $ {f} .cpp $ {f} Driver.cpp）
 add_executable（$ {f} $ {f} uis $ {f} srcs） 
 
 list（REMOVE_ITEM ALL_SRCS $ {ui} $ {f} .cpp $ {f} Driver.cpp）
 endforeach（）
  pre> 
 
 
之后，您将拥有 ALL_SRCS 中的所有非qt源。
 
I have a directory with files that either belong to a set that makes up a Qt project, and other files that do not. That is, files A.cxx, ADriver.cxx and A.ui all belong to a set that needs to be compiled with Qt options. I then have a file B.cxx that is non-qt. Then C.cxx, CDriver, and C.ui are another Qt set. There are tens of these, so I want to use globs rather than write each add_executable manually. I was thinking of doing something like 
for(all ui files) 
  create an executable from the ui and its matching .cxx and *Driver.cxx"
end
Then all cxx files that "remain" (not used in the above loop) are non-Qt, and need to be compiled by themselves. My question is how to "subtract" files from a "set". That is, to use the method described above I'd have to have a set of all cxx files, and remove the ones that get used in the .ui file loop. Is this possible? Is there a better way to do something like this?
解决方案
First, gather all files with a glob:
file(GLOB ALL_SRCS *)
Then select ui files and create Qt targets for them, substracting them from the ALL_SRCS list at the same time:
file(GLOB UIS *.ui)

foreach(ui ${UIS})
get_filename_component(f ${ui} NAME_WE)

# Do Qt stuff
qt4_wrap_ui( ${f}uis ${ui} )
qt4_wrap_cpp( ${f}srcs ${f}.cpp ${f}Driver.cpp )
add_executable( ${f} ${f}uis ${f}srcs )

list(REMOVE_ITEM ALL_SRCS ${ui} ${f}.cpp ${f}Driver.cpp)
endforeach()
After this you'll have all non-qt sources in ALL_SRCS.

                        
这篇关于从集合中删除文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！