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   6         <title>eVaf Tutorial - 08 - Building Storage Module</title>
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  15
  16         <h1>eVaf Tutorial</h1>
  17
  18         <h2>08 - Buiding Storage Module</h2>
  19
  20         <h3>CMakeLists.txt</h3>
  21
  22         <p>Copy an existing <tt>CMakeLists.txt</tt> file from the <tt>Generator</tt> module:</p>
  23
  24         <pre>evaf/src/apps/PswGen/Storage $ <code>cp ../Generator/CMakeLists.txt .</code></pre>
  25
  26         <p>We only need to modify the <tt>TARGET</tt> variable and set <tt>QT_USE_QTSQL</tt> to <tt>TRUE</tt>:</p>
  27
  28         <pre class="hl"><span class="hl com"># Name of the target</span>
  29 <span class="hl kwa">set</span><span class="hl opt">(</span>TARGET PswStorage<span class="hl opt">)</span>
  30
  31 <span class="hl com"># Qt modules</span>
  32 <span class="hl kwa">set</span><span class="hl opt">(</span>QT_USE_QTSQL TRUE<span class="hl opt">)</span></pre>
  33
  34         <p>Here is the final <tt>CMakeLists.txt</tt> file:</p>
  35
  36 <pre class="hl"><span class="hl com"># src/apps/PswGen/Storage/CMakeLists.txt</span>
  37
  38 <span class="hl com"># Name of the target</span>
  39 <span class="hl kwa">set</span><span class="hl opt">(</span>TARGET PswStorage<span class="hl opt">)</span>
  40
  41 <span class="hl com"># Qt modules</span>
  42 <span class="hl kwa">set</span><span class="hl opt">(</span>QT_USE_QTSQL TRUE<span class="hl opt">)</span>
  43 <span class="hl kwa">set</span><span class="hl opt">(</span>QT_DONT_USE_QTGUI TRUE<span class="hl opt">)</span>
  44 <span class="hl kwa">include</span><span class="hl opt">(</span><span class="hl kwd">${QT_USE_FILE}</span><span class="hl opt">)</span>
  45
  46 <span class="hl com"># Include directories</span>
  47 <span class="hl kwa">include_directories</span><span class="hl opt">(</span><span class="hl kwd">${eVaf_INCLUDE}<span class="hl opt">)</span>
  48
  49 <span class="hl com"># Required eVaf libraries</span>
  50 <span class="hl kwa">set</span><span class="hl opt">(</span>eVaf_LIBRARIES CommonLib PluginsLib<span class="hl opt">)</span>
  51
  52 <span class="hl com"># Source files</span>
  53 <span class="hl kwa">set</span><span class="hl opt">(</span>SRCS
  54     module.cpp
  55 <span class="hl opt">)</span>
  56
  57 <span class="hl com"># Header files for the Qt meta-object compiler</span>
  58 <span class="hl kwa">set</span><span class="hl opt">(</span>MOC_HDRS
  59     module.h
  60 <span class="hl opt">)</span>
  61
  62 <span class="hl com"># Version info resource file for Windows builds</span>
  63 <span class="hl kwa">if</span><span class="hl opt">(</span><span class="hl kwb">WIN32</span><span class="hl opt">)</span>
  64     <span class="hl kwa">set</span><span class="hl opt">(</span>SRCS <span class="hl kwd">${SRCS}</span> version.rc<span class="hl opt">)</span>
  65 <span class="hl kwa">endif</span><span class="hl opt">(</span><span class="hl kwb">WIN32</span><span class="hl opt">)</span>
  66
  67 <span class="hl com"># Run the Qt meta-object compiler</span>
  68 <span class="hl kwd">qt4_wrap_cpp</span><span class="hl opt">(</span>MOC_SRCS <span class="hl kwd">${MOC_HDRS}</span><span class="hl opt">)</span>
  69
  70 <span class="hl com"># Compile the module</span>
  71 <span class="hl kwa">add_library</span><span class="hl opt">(</span><span class="hl kwd">${TARGET}</span> <span class="hl kwb">SHARED</span> <span class="hl kwd">${SRCS} ${MOC_SRCS}</span><span class="hl opt">)</span>
  72
  73 <span class="hl com"># Link the module</span>
  74 <span class="hl kwa">target_link_libraries</span><span class="hl opt">(</span><span class="hl kwd">${TARGET} ${QT_LIBRARIES} ${eVaf_LIBRARIES}</span><span class="hl opt">)</span></pre>
  75
  76         <p>Open the <tt>CMakeLists.txt</tt> file in the parent directory and add the command to include the <tt>Storage</tt>
  77         sub-directory:</p>
  78
  79         <pre class="hl"><span class="hl com"># src/apps/PswGen/CMakeLists.txt</span>
  80 <span class="hl com"># ...</span>
  81 <span class="hl kwa">add_subdirectory</span><span class="hl opt">(</span>Storage<span class="hl opt">)</span></pre>
  82
  83         <h3>Building the module</h3>
  84
  85         <p>Go to the previously made <tt>build</tt> directory and build the module:</p>
  86
  87         <pre>evaf $ <code>cd build</code>
  88 evaf/build $ <code>make PswStorage</code></pre>
  89
  90         <p>Check the <tt>bin</tt> directory, which should now contain a new library:</p>
  91
  92         <pre>evaf/build $ <code>ls bin</code>
  93 libCommonLib.so*  libPluginsLib.so*  libPswGen.so*  <b>libPswStorage.so*</b>
  94 evaf/build $</pre>
  95
  96         <p>In the next section <a href="pswgen09.html">09 - GUI Module</a> we write the Graphical User Interface Module.</p>
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