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| <div class="section" id="findwxwidgets"> |
| <span id="module:FindwxWidgets"></span><h1>FindwxWidgets<a class="headerlink" href="#findwxwidgets" title="Permalink to this headline">ΒΆ</a></h1> |
| <p>Find a wxWidgets (a.k.a., wxWindows) installation.</p> |
| <p>This module finds if wxWidgets is installed and selects a default |
| configuration to use. wxWidgets is a modular library. To specify the |
| modules that you will use, you need to name them as components to the |
| package:</p> |
| <p>find_package(wxWidgets COMPONENTS core base ...)</p> |
| <p>There are two search branches: a windows style and a unix style. For |
| windows, the following variables are searched for and set to defaults |
| in case of multiple choices. Change them if the defaults are not |
| desired (i.e., these are the only variables you should change to |
| select a configuration):</p> |
| <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">wxWidgets_ROOT_DIR</span> <span class="o">-</span> <span class="n">Base</span> <span class="n">wxWidgets</span> <span class="n">directory</span> |
| <span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">g</span><span class="o">.</span><span class="p">,</span> <span class="n">C</span><span class="p">:</span><span class="o">/</span><span class="n">wxWidgets</span><span class="o">-</span><span class="mf">2.6</span><span class="o">.</span><span class="mi">3</span><span class="p">)</span><span class="o">.</span> |
| <span class="n">wxWidgets_LIB_DIR</span> <span class="o">-</span> <span class="n">Path</span> <span class="n">to</span> <span class="n">wxWidgets</span> <span class="n">libraries</span> |
| <span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">g</span><span class="o">.</span><span class="p">,</span> <span class="n">C</span><span class="p">:</span><span class="o">/</span><span class="n">wxWidgets</span><span class="o">-</span><span class="mf">2.6</span><span class="o">.</span><span class="mi">3</span><span class="o">/</span><span class="n">lib</span><span class="o">/</span><span class="n">vc_lib</span><span class="p">)</span><span class="o">.</span> |
| <span class="n">wxWidgets_CONFIGURATION</span> <span class="o">-</span> <span class="n">Configuration</span> <span class="n">to</span> <span class="n">use</span> |
| <span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">g</span><span class="o">.</span><span class="p">,</span> <span class="n">msw</span><span class="p">,</span> <span class="n">mswd</span><span class="p">,</span> <span class="n">mswu</span><span class="p">,</span> <span class="n">mswunivud</span><span class="p">,</span> <span class="n">etc</span><span class="o">.</span><span class="p">)</span> |
| <span class="n">wxWidgets_EXCLUDE_COMMON_LIBRARIES</span> |
| <span class="o">-</span> <span class="n">Set</span> <span class="n">to</span> <span class="n">TRUE</span> <span class="n">to</span> <span class="n">exclude</span> <span class="n">linking</span> <span class="n">of</span> |
| <span class="n">commonly</span> <span class="n">required</span> <span class="n">libs</span> <span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">g</span><span class="o">.</span><span class="p">,</span> <span class="n">png</span> <span class="n">tiff</span> |
| <span class="n">jpeg</span> <span class="n">zlib</span> <span class="n">regex</span> <span class="n">expat</span><span class="p">)</span><span class="o">.</span> |
| </pre></div> |
| </div> |
| <p>For unix style it uses the wx-config utility. You can select between |
| debug/release, unicode/ansi, universal/non-universal, and |
| static/shared in the QtDialog or ccmake interfaces by turning ON/OFF |
| the following variables:</p> |
| <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">wxWidgets_USE_DEBUG</span> |
| <span class="n">wxWidgets_USE_UNICODE</span> |
| <span class="n">wxWidgets_USE_UNIVERSAL</span> |
| <span class="n">wxWidgets_USE_STATIC</span> |
| </pre></div> |
| </div> |
| <p>There is also a wxWidgets_CONFIG_OPTIONS variable for all other |
| options that need to be passed to the wx-config utility. For example, |
| to use the base toolkit found in the /usr/local path, set the variable |
| (before calling the FIND_PACKAGE command) as such:</p> |
| <div class="highlight-default"><div class="highlight"><pre><span></span><span class="nb">set</span><span class="p">(</span><span class="n">wxWidgets_CONFIG_OPTIONS</span> <span class="o">--</span><span class="n">toolkit</span><span class="o">=</span><span class="n">base</span> <span class="o">--</span><span class="n">prefix</span><span class="o">=/</span><span class="n">usr</span><span class="p">)</span> |
| </pre></div> |
| </div> |
| <p>The following are set after the configuration is done for both windows |
| and unix style:</p> |
| <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">wxWidgets_FOUND</span> <span class="o">-</span> <span class="n">Set</span> <span class="n">to</span> <span class="n">TRUE</span> <span class="k">if</span> <span class="n">wxWidgets</span> <span class="n">was</span> <span class="n">found</span><span class="o">.</span> |
| <span class="n">wxWidgets_INCLUDE_DIRS</span> <span class="o">-</span> <span class="n">Include</span> <span class="n">directories</span> <span class="k">for</span> <span class="n">WIN32</span> |
| <span class="n">i</span><span class="o">.</span><span class="n">e</span><span class="o">.</span><span class="p">,</span> <span class="n">where</span> <span class="n">to</span> <span class="n">find</span> <span class="s2">"wx/wx.h"</span> <span class="ow">and</span> |
| <span class="s2">"wx/setup.h"</span><span class="p">;</span> <span class="n">possibly</span> <span class="n">empty</span> <span class="k">for</span> <span class="n">unices</span><span class="o">.</span> |
| <span class="n">wxWidgets_LIBRARIES</span> <span class="o">-</span> <span class="n">Path</span> <span class="n">to</span> <span class="n">the</span> <span class="n">wxWidgets</span> <span class="n">libraries</span><span class="o">.</span> |
| <span class="n">wxWidgets_LIBRARY_DIRS</span> <span class="o">-</span> <span class="nb">compile</span> <span class="n">time</span> <span class="n">link</span> <span class="n">dirs</span><span class="p">,</span> <span class="n">useful</span> <span class="k">for</span> |
| <span class="n">rpath</span> <span class="n">on</span> <span class="n">UNIX</span><span class="o">.</span> <span class="n">Typically</span> <span class="n">an</span> <span class="n">empty</span> <span class="n">string</span> |
| <span class="ow">in</span> <span class="n">WIN32</span> <span class="n">environment</span><span class="o">.</span> |
| <span class="n">wxWidgets_DEFINITIONS</span> <span class="o">-</span> <span class="n">Contains</span> <span class="n">defines</span> <span class="n">required</span> <span class="n">to</span> <span class="nb">compile</span><span class="o">/</span><span class="n">link</span> |
| <span class="n">against</span> <span class="n">WX</span><span class="p">,</span> <span class="n">e</span><span class="o">.</span><span class="n">g</span><span class="o">.</span> <span class="n">WXUSINGDLL</span> |
| <span class="n">wxWidgets_DEFINITIONS_DEBUG</span><span class="o">-</span> <span class="n">Contains</span> <span class="n">defines</span> <span class="n">required</span> <span class="n">to</span> <span class="nb">compile</span><span class="o">/</span><span class="n">link</span> |
| <span class="n">against</span> <span class="n">WX</span> <span class="n">debug</span> <span class="n">builds</span><span class="p">,</span> <span class="n">e</span><span class="o">.</span><span class="n">g</span><span class="o">.</span> <span class="n">__WXDEBUG__</span> |
| <span class="n">wxWidgets_CXX_FLAGS</span> <span class="o">-</span> <span class="n">Include</span> <span class="n">dirs</span> <span class="ow">and</span> <span class="n">compiler</span> <span class="n">flags</span> <span class="k">for</span> |
| <span class="n">unices</span><span class="p">,</span> <span class="n">empty</span> <span class="n">on</span> <span class="n">WIN32</span><span class="o">.</span> <span class="n">Essentially</span> |
| <span class="s2">"`wx-config --cxxflags`"</span><span class="o">.</span> |
| <span class="n">wxWidgets_USE_FILE</span> <span class="o">-</span> <span class="n">Convenience</span> <span class="n">include</span> <span class="n">file</span><span class="o">.</span> |
| </pre></div> |
| </div> |
| <p>Sample usage:</p> |
| <div class="highlight-default"><div class="highlight"><pre><span></span># Note that for MinGW users the order of libs is important! |
| find_package(wxWidgets COMPONENTS net gl core base) |
| if(wxWidgets_FOUND) |
| include(${wxWidgets_USE_FILE}) |
| # and for each of your dependent executable/library targets: |
| target_link_libraries(<YourTarget> ${wxWidgets_LIBRARIES}) |
| endif() |
| </pre></div> |
| </div> |
| <p>If wxWidgets is required (i.e., not an optional part):</p> |
| <div class="highlight-default"><div class="highlight"><pre><span></span>find_package(wxWidgets REQUIRED net gl core base) |
| include(${wxWidgets_USE_FILE}) |
| # and for each of your dependent executable/library targets: |
| target_link_libraries(<YourTarget> ${wxWidgets_LIBRARIES}) |
| </pre></div> |
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