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| <div class="section" id="findqt4"> |
| <span id="module:FindQt4"></span><h1>FindQt4<a class="headerlink" href="#findqt4" title="Permalink to this headline">¶</a></h1> |
| <div class="section" id="finding-and-using-qt4"> |
| <h2>Finding and Using Qt4<a class="headerlink" href="#finding-and-using-qt4" title="Permalink to this headline">¶</a></h2> |
| <p>This module can be used to find Qt4. The most important issue is that |
| the Qt4 qmake is available via the system path. This qmake is then |
| used to detect basically everything else. This module defines a |
| number of <span class="target" id="index-0-prop_tgt:IMPORTED"></span><a class="reference internal" href="../prop_tgt/IMPORTED.html#prop_tgt:IMPORTED" title="IMPORTED"><code class="xref cmake cmake-prop_tgt docutils literal"><span class="pre">IMPORTED</span></code></a> targets, macros and variables.</p> |
| <p>Typical usage could be something like:</p> |
| <div class="highlight-cmake"><div class="highlight"><pre><span></span><span class="nb">set</span><span class="p">(</span><span class="s">CMAKE_AUTOMOC</span> <span class="s">ON</span><span class="p">)</span> |
| <span class="nb">set</span><span class="p">(</span><span class="s">CMAKE_INCLUDE_CURRENT_DIR</span> <span class="s">ON</span><span class="p">)</span> |
| <span class="nb">find_package</span><span class="p">(</span><span class="s">Qt4</span> <span class="s">4.4.3</span> <span class="s">REQUIRED</span> <span class="s">QtGui</span> <span class="s">QtXml</span><span class="p">)</span> |
| <span class="nb">add_executable</span><span class="p">(</span><span class="s">myexe</span> <span class="s">main.cpp</span><span class="p">)</span> |
| <span class="nb">target_link_libraries</span><span class="p">(</span><span class="s">myexe</span> <span class="s">Qt4::QtGui</span> <span class="s">Qt4::QtXml</span><span class="p">)</span> |
| </pre></div> |
| </div> |
| <div class="admonition note"> |
| <p class="first admonition-title">Note</p> |
| <p class="last">When using <span class="target" id="index-1-prop_tgt:IMPORTED"></span><a class="reference internal" href="../prop_tgt/IMPORTED.html#prop_tgt:IMPORTED" title="IMPORTED"><code class="xref cmake cmake-prop_tgt docutils literal"><span class="pre">IMPORTED</span></code></a> targets, the qtmain.lib static library is |
| automatically linked on Windows for <span class="target" id="index-0-prop_tgt:WIN32_EXECUTABLE"></span><a class="reference internal" href="../prop_tgt/WIN32_EXECUTABLE.html#prop_tgt:WIN32_EXECUTABLE" title="WIN32_EXECUTABLE"><code class="xref cmake cmake-prop_tgt docutils literal"><span class="pre">WIN32</span></code></a> |
| executables. To disable that globally, set the |
| <code class="docutils literal"><span class="pre">QT4_NO_LINK_QTMAIN</span></code> variable before finding Qt4. To disable that |
| for a particular executable, set the <code class="docutils literal"><span class="pre">QT4_NO_LINK_QTMAIN</span></code> target |
| property to <code class="docutils literal"><span class="pre">TRUE</span></code> on the executable.</p> |
| </div> |
| </div> |
| <div class="section" id="qt-build-tools"> |
| <h2>Qt Build Tools<a class="headerlink" href="#qt-build-tools" title="Permalink to this headline">¶</a></h2> |
| <p>Qt relies on some bundled tools for code generation, such as <code class="docutils literal"><span class="pre">moc</span></code> for |
| meta-object code generation,``uic`` for widget layout and population, |
| and <code class="docutils literal"><span class="pre">rcc</span></code> for virtual filesystem content generation. These tools may be |
| automatically invoked by <span class="target" id="index-0-manual:cmake(1)"></span><a class="reference internal" href="../manual/cmake.1.html#manual:cmake(1)" title="cmake(1)"><code class="xref cmake cmake-manual docutils literal"><span class="pre">cmake(1)</span></code></a> if the appropriate conditions |
| are met. See <span class="target" id="index-0-manual:cmake-qt(7)"></span><a class="reference internal" href="../manual/cmake-qt.7.html#manual:cmake-qt(7)" title="cmake-qt(7)"><code class="xref cmake cmake-manual docutils literal"><span class="pre">cmake-qt(7)</span></code></a> for more.</p> |
| </div> |
| <div class="section" id="qt-macros"> |
| <h2>Qt Macros<a class="headerlink" href="#qt-macros" title="Permalink to this headline">¶</a></h2> |
| <p>In some cases it can be necessary or useful to invoke the Qt build tools in a |
| more-manual way. Several macros are available to add targets for such uses.</p> |
| <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">macro</span> <span class="n">QT4_WRAP_CPP</span><span class="p">(</span><span class="n">outfiles</span> <span class="n">inputfile</span> <span class="o">...</span> <span class="p">[</span><span class="n">TARGET</span> <span class="n">tgt</span><span class="p">]</span> <span class="n">OPTIONS</span> <span class="o">...</span><span class="p">)</span> |
| <span class="n">create</span> <span class="n">moc</span> <span class="n">code</span> <span class="kn">from</span> <span class="nn">a</span> <span class="nb">list</span> <span class="n">of</span> <span class="n">files</span> <span class="n">containing</span> <span class="n">Qt</span> <span class="k">class</span> <span class="nc">with</span> |
| <span class="n">the</span> <span class="n">Q_OBJECT</span> <span class="n">declaration</span><span class="o">.</span> <span class="n">Per</span><span class="o">-</span><span class="n">directory</span> <span class="n">preprocessor</span> <span class="n">definitions</span> |
| <span class="n">are</span> <span class="n">also</span> <span class="n">added</span><span class="o">.</span> <span class="n">If</span> <span class="n">the</span> <span class="o"><</span><span class="n">tgt</span><span class="o">></span> <span class="ow">is</span> <span class="n">specified</span><span class="p">,</span> <span class="n">the</span> |
| <span class="n">INTERFACE_INCLUDE_DIRECTORIES</span> <span class="ow">and</span> <span class="n">INTERFACE_COMPILE_DEFINITIONS</span> <span class="kn">from</span> |
| <span class="nn">the</span> <span class="o"><</span><span class="n">tgt</span><span class="o">></span> <span class="n">are</span> <span class="n">passed</span> <span class="n">to</span> <span class="n">moc</span><span class="o">.</span> <span class="n">Options</span> <span class="n">may</span> <span class="n">be</span> <span class="n">given</span> <span class="n">to</span> <span class="n">moc</span><span class="p">,</span> <span class="n">such</span> <span class="k">as</span> |
| <span class="n">those</span> <span class="n">found</span> <span class="n">when</span> <span class="n">executing</span> <span class="s2">"moc -help"</span><span class="o">.</span> |
| </pre></div> |
| </div> |
| <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">macro</span> <span class="n">QT4_WRAP_UI</span><span class="p">(</span><span class="n">outfiles</span> <span class="n">inputfile</span> <span class="o">...</span> <span class="n">OPTIONS</span> <span class="o">...</span><span class="p">)</span> |
| <span class="n">create</span> <span class="n">code</span> <span class="kn">from</span> <span class="nn">a</span> <span class="nb">list</span> <span class="n">of</span> <span class="n">Qt</span> <span class="n">designer</span> <span class="n">ui</span> <span class="n">files</span><span class="o">.</span> |
| <span class="n">Options</span> <span class="n">may</span> <span class="n">be</span> <span class="n">given</span> <span class="n">to</span> <span class="n">uic</span><span class="p">,</span> <span class="n">such</span> <span class="k">as</span> <span class="n">those</span> <span class="n">found</span> |
| <span class="n">when</span> <span class="n">executing</span> <span class="s2">"uic -help"</span> |
| </pre></div> |
| </div> |
| <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">macro</span> <span class="n">QT4_ADD_RESOURCES</span><span class="p">(</span><span class="n">outfiles</span> <span class="n">inputfile</span> <span class="o">...</span> <span class="n">OPTIONS</span> <span class="o">...</span><span class="p">)</span> |
| <span class="n">create</span> <span class="n">code</span> <span class="kn">from</span> <span class="nn">a</span> <span class="nb">list</span> <span class="n">of</span> <span class="n">Qt</span> <span class="n">resource</span> <span class="n">files</span><span class="o">.</span> |
| <span class="n">Options</span> <span class="n">may</span> <span class="n">be</span> <span class="n">given</span> <span class="n">to</span> <span class="n">rcc</span><span class="p">,</span> <span class="n">such</span> <span class="k">as</span> <span class="n">those</span> <span class="n">found</span> |
| <span class="n">when</span> <span class="n">executing</span> <span class="s2">"rcc -help"</span> |
| </pre></div> |
| </div> |
| <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">macro</span> <span class="n">QT4_GENERATE_MOC</span><span class="p">(</span><span class="n">inputfile</span> <span class="n">outputfile</span> <span class="p">[</span><span class="n">TARGET</span> <span class="n">tgt</span><span class="p">])</span> |
| <span class="n">creates</span> <span class="n">a</span> <span class="n">rule</span> <span class="n">to</span> <span class="n">run</span> <span class="n">moc</span> <span class="n">on</span> <span class="n">infile</span> <span class="ow">and</span> <span class="n">create</span> <span class="n">outfile</span><span class="o">.</span> |
| <span class="n">Use</span> <span class="n">this</span> <span class="k">if</span> <span class="k">for</span> <span class="n">some</span> <span class="n">reason</span> <span class="n">QT4_WRAP_CPP</span><span class="p">()</span> <span class="n">isn</span><span class="s1">'t appropriate, e.g.</span> |
| <span class="n">because</span> <span class="n">you</span> <span class="n">need</span> <span class="n">a</span> <span class="n">custom</span> <span class="n">filename</span> <span class="k">for</span> <span class="n">the</span> <span class="n">moc</span> <span class="n">file</span> <span class="ow">or</span> <span class="n">something</span> |
| <span class="n">similar</span><span class="o">.</span> <span class="n">If</span> <span class="n">the</span> <span class="o"><</span><span class="n">tgt</span><span class="o">></span> <span class="ow">is</span> <span class="n">specified</span><span class="p">,</span> <span class="n">the</span> |
| <span class="n">INTERFACE_INCLUDE_DIRECTORIES</span> <span class="ow">and</span> <span class="n">INTERFACE_COMPILE_DEFINITIONS</span> <span class="kn">from</span> |
| <span class="nn">the</span> <span class="o"><</span><span class="n">tgt</span><span class="o">></span> <span class="n">are</span> <span class="n">passed</span> <span class="n">to</span> <span class="n">moc</span><span class="o">.</span> |
| </pre></div> |
| </div> |
| <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">macro</span> <span class="n">QT4_ADD_DBUS_INTERFACE</span><span class="p">(</span><span class="n">outfiles</span> <span class="n">interface</span> <span class="n">basename</span><span class="p">)</span> |
| <span class="n">Create</span> <span class="n">the</span> <span class="n">interface</span> <span class="n">header</span> <span class="ow">and</span> <span class="n">implementation</span> <span class="n">files</span> <span class="k">with</span> <span class="n">the</span> |
| <span class="n">given</span> <span class="n">basename</span> <span class="kn">from</span> <span class="nn">the</span> <span class="n">given</span> <span class="n">interface</span> <span class="n">xml</span> <span class="n">file</span> <span class="ow">and</span> <span class="n">add</span> <span class="n">it</span> <span class="n">to</span> |
| <span class="n">the</span> <span class="nb">list</span> <span class="n">of</span> <span class="n">sources</span><span class="o">.</span> |
| |
| <span class="n">You</span> <span class="n">can</span> <span class="k">pass</span> <span class="n">additional</span> <span class="n">parameters</span> <span class="n">to</span> <span class="n">the</span> <span class="n">qdbusxml2cpp</span> <span class="n">call</span> <span class="n">by</span> <span class="n">setting</span> |
| <span class="n">properties</span> <span class="n">on</span> <span class="n">the</span> <span class="nb">input</span> <span class="n">file</span><span class="p">:</span> |
| |
| <span class="n">INCLUDE</span> <span class="n">the</span> <span class="n">given</span> <span class="n">file</span> <span class="n">will</span> <span class="n">be</span> <span class="n">included</span> <span class="ow">in</span> <span class="n">the</span> <span class="n">generate</span> <span class="n">interface</span> <span class="n">header</span> |
| |
| <span class="n">CLASSNAME</span> <span class="n">the</span> <span class="n">generated</span> <span class="k">class</span> <span class="nc">is</span> <span class="n">named</span> <span class="n">accordingly</span> |
| |
| <span class="n">NO_NAMESPACE</span> <span class="n">the</span> <span class="n">generated</span> <span class="k">class</span> <span class="nc">is</span> <span class="ow">not</span> <span class="n">wrapped</span> <span class="ow">in</span> <span class="n">a</span> <span class="n">namespace</span> |
| </pre></div> |
| </div> |
| <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">macro</span> <span class="n">QT4_ADD_DBUS_INTERFACES</span><span class="p">(</span><span class="n">outfiles</span> <span class="n">inputfile</span> <span class="o">...</span> <span class="p">)</span> |
| <span class="n">Create</span> <span class="n">the</span> <span class="n">interface</span> <span class="n">header</span> <span class="ow">and</span> <span class="n">implementation</span> <span class="n">files</span> |
| <span class="k">for</span> <span class="nb">all</span> <span class="n">listed</span> <span class="n">interface</span> <span class="n">xml</span> <span class="n">files</span><span class="o">.</span> |
| <span class="n">The</span> <span class="n">basename</span> <span class="n">will</span> <span class="n">be</span> <span class="n">automatically</span> <span class="n">determined</span> <span class="kn">from</span> <span class="nn">the</span> <span class="n">name</span> |
| <span class="n">of</span> <span class="n">the</span> <span class="n">xml</span> <span class="n">file</span><span class="o">.</span> |
| |
| <span class="n">The</span> <span class="n">source</span> <span class="n">file</span> <span class="n">properties</span> <span class="n">described</span> <span class="k">for</span> |
| <span class="n">QT4_ADD_DBUS_INTERFACE</span> <span class="n">also</span> <span class="n">apply</span> <span class="n">here</span><span class="o">.</span> |
| </pre></div> |
| </div> |
| <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">macro</span> <span class="n">QT4_ADD_DBUS_ADAPTOR</span><span class="p">(</span><span class="n">outfiles</span> <span class="n">xmlfile</span> <span class="n">parentheader</span> <span class="n">parentclassname</span> |
| <span class="p">[</span><span class="n">basename</span><span class="p">]</span> <span class="p">[</span><span class="n">classname</span><span class="p">])</span> |
| <span class="n">create</span> <span class="n">a</span> <span class="n">dbus</span> <span class="n">adaptor</span> <span class="p">(</span><span class="n">header</span> <span class="ow">and</span> <span class="n">implementation</span> <span class="n">file</span><span class="p">)</span> <span class="kn">from</span> <span class="nn">the</span> <span class="n">xml</span> <span class="n">file</span> |
| <span class="n">describing</span> <span class="n">the</span> <span class="n">interface</span><span class="p">,</span> <span class="ow">and</span> <span class="n">add</span> <span class="n">it</span> <span class="n">to</span> <span class="n">the</span> <span class="nb">list</span> <span class="n">of</span> <span class="n">sources</span><span class="o">.</span> <span class="n">The</span> <span class="n">adaptor</span> |
| <span class="n">forwards</span> <span class="n">the</span> <span class="n">calls</span> <span class="n">to</span> <span class="n">a</span> <span class="n">parent</span> <span class="n">class</span><span class="p">,</span> <span class="n">defined</span> <span class="ow">in</span> <span class="n">parentheader</span> <span class="ow">and</span> <span class="n">named</span> |
| <span class="n">parentclassname</span><span class="o">.</span> <span class="n">The</span> <span class="n">name</span> <span class="n">of</span> <span class="n">the</span> <span class="n">generated</span> <span class="n">files</span> <span class="n">will</span> <span class="n">be</span> |
| <span class="o"><</span><span class="n">basename</span><span class="o">></span><span class="n">adaptor</span><span class="o">.</span><span class="p">{</span><span class="n">cpp</span><span class="p">,</span><span class="n">h</span><span class="p">}</span> <span class="n">where</span> <span class="n">basename</span> <span class="n">defaults</span> <span class="n">to</span> <span class="n">the</span> <span class="n">basename</span> <span class="n">of</span> <span class="n">the</span> |
| <span class="n">xml</span> <span class="n">file</span><span class="o">.</span> |
| <span class="n">If</span> <span class="o"><</span><span class="n">classname</span><span class="o">></span> <span class="ow">is</span> <span class="n">provided</span><span class="p">,</span> <span class="n">then</span> <span class="n">it</span> <span class="n">will</span> <span class="n">be</span> <span class="n">used</span> <span class="k">as</span> <span class="n">the</span> <span class="n">classname</span> <span class="n">of</span> <span class="n">the</span> |
| <span class="n">adaptor</span> <span class="n">itself</span><span class="o">.</span> |
| </pre></div> |
| </div> |
| <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">macro</span> <span class="n">QT4_GENERATE_DBUS_INTERFACE</span><span class="p">(</span> <span class="n">header</span> <span class="p">[</span><span class="n">interfacename</span><span class="p">]</span> <span class="n">OPTIONS</span> <span class="o">...</span><span class="p">)</span> |
| <span class="n">generate</span> <span class="n">the</span> <span class="n">xml</span> <span class="n">interface</span> <span class="n">file</span> <span class="kn">from</span> <span class="nn">the</span> <span class="n">given</span> <span class="n">header</span><span class="o">.</span> |
| <span class="n">If</span> <span class="n">the</span> <span class="n">optional</span> <span class="n">argument</span> <span class="n">interfacename</span> <span class="ow">is</span> <span class="n">omitted</span><span class="p">,</span> <span class="n">the</span> <span class="n">name</span> <span class="n">of</span> <span class="n">the</span> |
| <span class="n">interface</span> <span class="n">file</span> <span class="ow">is</span> <span class="n">constructed</span> <span class="kn">from</span> <span class="nn">the</span> <span class="n">basename</span> <span class="n">of</span> <span class="n">the</span> <span class="n">header</span> <span class="k">with</span> |
| <span class="n">the</span> <span class="n">suffix</span> <span class="o">.</span><span class="n">xml</span> <span class="n">appended</span><span class="o">.</span> |
| <span class="n">Options</span> <span class="n">may</span> <span class="n">be</span> <span class="n">given</span> <span class="n">to</span> <span class="n">qdbuscpp2xml</span><span class="p">,</span> <span class="n">such</span> <span class="k">as</span> <span class="n">those</span> <span class="n">found</span> <span class="n">when</span> |
| <span class="n">executing</span> <span class="s2">"qdbuscpp2xml --help"</span> |
| </pre></div> |
| </div> |
| <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">macro</span> <span class="n">QT4_CREATE_TRANSLATION</span><span class="p">(</span> <span class="n">qm_files</span> <span class="n">directories</span> <span class="o">...</span> <span class="n">sources</span> <span class="o">...</span> |
| <span class="n">ts_files</span> <span class="o">...</span> <span class="n">OPTIONS</span> <span class="o">...</span><span class="p">)</span> |
| <span class="n">out</span><span class="p">:</span> <span class="n">qm_files</span> |
| <span class="ow">in</span><span class="p">:</span> <span class="n">directories</span> <span class="n">sources</span> <span class="n">ts_files</span> |
| <span class="n">options</span><span class="p">:</span> <span class="n">flags</span> <span class="n">to</span> <span class="k">pass</span> <span class="n">to</span> <span class="n">lupdate</span><span class="p">,</span> <span class="n">such</span> <span class="k">as</span> <span class="o">-</span><span class="n">extensions</span> <span class="n">to</span> <span class="n">specify</span> |
| <span class="n">extensions</span> <span class="k">for</span> <span class="n">a</span> <span class="n">directory</span> <span class="n">scan</span><span class="o">.</span> |
| <span class="n">generates</span> <span class="n">commands</span> <span class="n">to</span> <span class="n">create</span> <span class="o">.</span><span class="n">ts</span> <span class="p">(</span><span class="n">vie</span> <span class="n">lupdate</span><span class="p">)</span> <span class="ow">and</span> <span class="o">.</span><span class="n">qm</span> |
| <span class="p">(</span><span class="n">via</span> <span class="n">lrelease</span><span class="p">)</span> <span class="o">-</span> <span class="n">files</span> <span class="kn">from</span> <span class="nn">directories</span> <span class="ow">and</span><span class="o">/</span><span class="ow">or</span> <span class="n">sources</span><span class="o">.</span> <span class="n">The</span> <span class="n">ts</span> <span class="n">files</span> <span class="n">are</span> |
| <span class="n">created</span> <span class="ow">and</span><span class="o">/</span><span class="ow">or</span> <span class="n">updated</span> <span class="ow">in</span> <span class="n">the</span> <span class="n">source</span> <span class="n">tree</span> <span class="p">(</span><span class="n">unless</span> <span class="n">given</span> <span class="k">with</span> <span class="n">full</span> <span class="n">paths</span><span class="p">)</span><span class="o">.</span> |
| <span class="n">The</span> <span class="n">qm</span> <span class="n">files</span> <span class="n">are</span> <span class="n">generated</span> <span class="ow">in</span> <span class="n">the</span> <span class="n">build</span> <span class="n">tree</span><span class="o">.</span> |
| <span class="n">Updating</span> <span class="n">the</span> <span class="n">translations</span> <span class="n">can</span> <span class="n">be</span> <span class="n">done</span> <span class="n">by</span> <span class="n">adding</span> <span class="n">the</span> <span class="n">qm_files</span> |
| <span class="n">to</span> <span class="n">the</span> <span class="n">source</span> <span class="nb">list</span> <span class="n">of</span> <span class="n">your</span> <span class="n">library</span><span class="o">/</span><span class="n">executable</span><span class="p">,</span> <span class="n">so</span> <span class="n">they</span> <span class="n">are</span> |
| <span class="n">always</span> <span class="n">updated</span><span class="p">,</span> <span class="ow">or</span> <span class="n">by</span> <span class="n">adding</span> <span class="n">a</span> <span class="n">custom</span> <span class="n">target</span> <span class="n">to</span> <span class="n">control</span> <span class="n">when</span> |
| <span class="n">they</span> <span class="n">get</span> <span class="n">updated</span><span class="o">/</span><span class="n">generated</span><span class="o">.</span> |
| </pre></div> |
| </div> |
| <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">macro</span> <span class="n">QT4_ADD_TRANSLATION</span><span class="p">(</span> <span class="n">qm_files</span> <span class="n">ts_files</span> <span class="o">...</span> <span class="p">)</span> |
| <span class="n">out</span><span class="p">:</span> <span class="n">qm_files</span> |
| <span class="ow">in</span><span class="p">:</span> <span class="n">ts_files</span> |
| <span class="n">generates</span> <span class="n">commands</span> <span class="n">to</span> <span class="n">create</span> <span class="o">.</span><span class="n">qm</span> <span class="kn">from</span> <span class="nn">.ts</span> <span class="o">-</span> <span class="n">files</span><span class="o">.</span> <span class="n">The</span> <span class="n">generated</span> |
| <span class="n">filenames</span> <span class="n">can</span> <span class="n">be</span> <span class="n">found</span> <span class="ow">in</span> <span class="n">qm_files</span><span class="o">.</span> <span class="n">The</span> <span class="n">ts_files</span> |
| <span class="n">must</span> <span class="n">exist</span> <span class="ow">and</span> <span class="n">are</span> <span class="ow">not</span> <span class="n">updated</span> <span class="ow">in</span> <span class="nb">any</span> <span class="n">way</span><span class="o">.</span> |
| </pre></div> |
| </div> |
| <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">macro</span> <span class="n">QT4_AUTOMOC</span><span class="p">(</span><span class="n">sourcefile1</span> <span class="n">sourcefile2</span> <span class="o">...</span> <span class="p">[</span><span class="n">TARGET</span> <span class="n">tgt</span><span class="p">])</span> |
| <span class="n">The</span> <span class="n">qt4_automoc</span> <span class="n">macro</span> <span class="ow">is</span> <span class="n">obsolete</span><span class="o">.</span> <span class="n">Use</span> <span class="n">the</span> <span class="n">CMAKE_AUTOMOC</span> <span class="n">feature</span> <span class="n">instead</span><span class="o">.</span> |
| <span class="n">This</span> <span class="n">macro</span> <span class="ow">is</span> <span class="n">still</span> <span class="n">experimental</span><span class="o">.</span> |
| <span class="n">It</span> <span class="n">can</span> <span class="n">be</span> <span class="n">used</span> <span class="n">to</span> <span class="n">have</span> <span class="n">moc</span> <span class="n">automatically</span> <span class="n">handled</span><span class="o">.</span> |
| <span class="n">So</span> <span class="k">if</span> <span class="n">you</span> <span class="n">have</span> <span class="n">the</span> <span class="n">files</span> <span class="n">foo</span><span class="o">.</span><span class="n">h</span> <span class="ow">and</span> <span class="n">foo</span><span class="o">.</span><span class="n">cpp</span><span class="p">,</span> <span class="ow">and</span> <span class="ow">in</span> <span class="n">foo</span><span class="o">.</span><span class="n">h</span> <span class="n">a</span> |
| <span class="n">a</span> <span class="k">class</span> <span class="nc">uses</span> <span class="n">the</span> <span class="n">Q_OBJECT</span> <span class="n">macro</span><span class="p">,</span> <span class="n">moc</span> <span class="n">has</span> <span class="n">to</span> <span class="n">run</span> <span class="n">on</span> <span class="n">it</span><span class="o">.</span> <span class="n">If</span> <span class="n">you</span> <span class="n">don</span><span class="s1">'t</span> |
| <span class="n">want</span> <span class="n">to</span> <span class="n">use</span> <span class="n">QT4_WRAP_CPP</span><span class="p">()</span> <span class="p">(</span><span class="n">which</span> <span class="ow">is</span> <span class="n">reliable</span> <span class="ow">and</span> <span class="n">mature</span><span class="p">),</span> <span class="n">you</span> <span class="n">can</span> <span class="n">insert</span> |
| <span class="c1">#include "foo.moc"</span> |
| <span class="ow">in</span> <span class="n">foo</span><span class="o">.</span><span class="n">cpp</span> <span class="ow">and</span> <span class="n">then</span> <span class="n">give</span> <span class="n">foo</span><span class="o">.</span><span class="n">cpp</span> <span class="k">as</span> <span class="n">argument</span> <span class="n">to</span> <span class="n">QT4_AUTOMOC</span><span class="p">()</span><span class="o">.</span> <span class="n">This</span> <span class="n">will</span> |
| <span class="n">scan</span> <span class="nb">all</span> <span class="n">listed</span> <span class="n">files</span> <span class="n">at</span> <span class="n">cmake</span><span class="o">-</span><span class="n">time</span> <span class="k">for</span> <span class="n">such</span> <span class="n">included</span> <span class="n">moc</span> <span class="n">files</span> <span class="ow">and</span> <span class="k">if</span> <span class="n">it</span> |
| <span class="n">finds</span> <span class="n">them</span> <span class="n">cause</span> <span class="n">a</span> <span class="n">rule</span> <span class="n">to</span> <span class="n">be</span> <span class="n">generated</span> <span class="n">to</span> <span class="n">run</span> <span class="n">moc</span> <span class="n">at</span> <span class="n">build</span> <span class="n">time</span> <span class="n">on</span> <span class="n">the</span> |
| <span class="n">accompanying</span> <span class="n">header</span> <span class="n">file</span> <span class="n">foo</span><span class="o">.</span><span class="n">h</span><span class="o">.</span> |
| <span class="n">If</span> <span class="n">a</span> <span class="n">source</span> <span class="n">file</span> <span class="n">has</span> <span class="n">the</span> <span class="n">SKIP_AUTOMOC</span> <span class="nb">property</span> <span class="nb">set</span> <span class="n">it</span> <span class="n">will</span> <span class="n">be</span> <span class="n">ignored</span> <span class="n">by</span> |
| <span class="n">this</span> <span class="n">macro</span><span class="o">.</span> |
| <span class="n">If</span> <span class="n">the</span> <span class="o"><</span><span class="n">tgt</span><span class="o">></span> <span class="ow">is</span> <span class="n">specified</span><span class="p">,</span> <span class="n">the</span> <span class="n">INTERFACE_INCLUDE_DIRECTORIES</span> <span class="ow">and</span> |
| <span class="n">INTERFACE_COMPILE_DEFINITIONS</span> <span class="kn">from</span> <span class="nn">the</span> <span class="o"><</span><span class="n">tgt</span><span class="o">></span> <span class="n">are</span> <span class="n">passed</span> <span class="n">to</span> <span class="n">moc</span><span class="o">.</span> |
| </pre></div> |
| </div> |
| <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">function</span> <span class="n">QT4_USE_MODULES</span><span class="p">(</span> <span class="n">target</span> <span class="p">[</span><span class="n">link_type</span><span class="p">]</span> <span class="n">modules</span><span class="o">...</span><span class="p">)</span> |
| <span class="n">This</span> <span class="n">function</span> <span class="ow">is</span> <span class="n">obsolete</span><span class="o">.</span> <span class="n">Use</span> <span class="n">target_link_libraries</span> <span class="k">with</span> <span class="n">IMPORTED</span> <span class="n">targets</span> |
| <span class="n">instead</span><span class="o">.</span> |
| <span class="n">Make</span> <span class="o"><</span><span class="n">target</span><span class="o">></span> <span class="n">use</span> <span class="n">the</span> <span class="o"><</span><span class="n">modules</span><span class="o">></span> <span class="kn">from</span> <span class="nn">Qt.</span> <span class="n">Using</span> <span class="n">a</span> <span class="n">Qt</span> <span class="n">module</span> <span class="n">means</span> |
| <span class="n">to</span> <span class="n">link</span> <span class="n">to</span> <span class="n">the</span> <span class="n">library</span><span class="p">,</span> <span class="n">add</span> <span class="n">the</span> <span class="n">relevant</span> <span class="n">include</span> <span class="n">directories</span> <span class="k">for</span> <span class="n">the</span> |
| <span class="n">module</span><span class="p">,</span> <span class="ow">and</span> <span class="n">add</span> <span class="n">the</span> <span class="n">relevant</span> <span class="n">compiler</span> <span class="n">defines</span> <span class="k">for</span> <span class="n">using</span> <span class="n">the</span> <span class="n">module</span><span class="o">.</span> |
| <span class="n">Modules</span> <span class="n">are</span> <span class="n">roughly</span> <span class="n">equivalent</span> <span class="n">to</span> <span class="n">components</span> <span class="n">of</span> <span class="n">Qt4</span><span class="p">,</span> <span class="n">so</span> <span class="n">usage</span> <span class="n">would</span> <span class="n">be</span> |
| <span class="n">something</span> <span class="n">like</span><span class="p">:</span> |
| <span class="n">qt4_use_modules</span><span class="p">(</span><span class="n">myexe</span> <span class="n">Core</span> <span class="n">Gui</span> <span class="n">Declarative</span><span class="p">)</span> |
| <span class="n">to</span> <span class="n">use</span> <span class="n">QtCore</span><span class="p">,</span> <span class="n">QtGui</span> <span class="ow">and</span> <span class="n">QtDeclarative</span><span class="o">.</span> <span class="n">The</span> <span class="n">optional</span> <span class="o"><</span><span class="n">link_type</span><span class="o">></span> <span class="n">argument</span> |
| <span class="n">can</span> <span class="n">be</span> <span class="n">specified</span> <span class="k">as</span> <span class="n">either</span> <span class="n">LINK_PUBLIC</span> <span class="ow">or</span> <span class="n">LINK_PRIVATE</span> <span class="n">to</span> <span class="n">specify</span> <span class="n">the</span> |
| <span class="n">same</span> <span class="n">argument</span> <span class="n">to</span> <span class="n">the</span> <span class="n">target_link_libraries</span> <span class="n">call</span><span class="o">.</span> |
| </pre></div> |
| </div> |
| </div> |
| <div class="section" id="imported-targets"> |
| <h2>IMPORTED Targets<a class="headerlink" href="#imported-targets" title="Permalink to this headline">¶</a></h2> |
| <p>A particular Qt library may be used by using the corresponding |
| <span class="target" id="index-2-prop_tgt:IMPORTED"></span><a class="reference internal" href="../prop_tgt/IMPORTED.html#prop_tgt:IMPORTED" title="IMPORTED"><code class="xref cmake cmake-prop_tgt docutils literal"><span class="pre">IMPORTED</span></code></a> target with the <span class="target" id="index-0-command:target_link_libraries"></span><a class="reference internal" href="../command/target_link_libraries.html#command:target_link_libraries" title="target_link_libraries"><code class="xref cmake cmake-command docutils literal"><span class="pre">target_link_libraries()</span></code></a> |
| command:</p> |
| <div class="highlight-cmake"><div class="highlight"><pre><span></span><span class="nb">target_link_libraries</span><span class="p">(</span><span class="s">myexe</span> <span class="s">Qt4::QtGui</span> <span class="s">Qt4::QtXml</span><span class="p">)</span> |
| </pre></div> |
| </div> |
| <p>Using a target in this way causes :cmake(1)` to use the appropriate include |
| directories and compile definitions for the target when compiling <code class="docutils literal"><span class="pre">myexe</span></code>.</p> |
| <p>Targets are aware of their dependencies, so for example it is not necessary |
| to list <code class="docutils literal"><span class="pre">Qt4::QtCore</span></code> if another Qt library is listed, and it is not |
| necessary to list <code class="docutils literal"><span class="pre">Qt4::QtGui</span></code> if <code class="docutils literal"><span class="pre">Qt4::QtDeclarative</span></code> is listed. |
| Targets may be tested for existence in the usual way with the |
| <span class="target" id="index-0-command:if"></span><a class="reference internal" href="../command/if.html#command:if" title="if"><code class="xref cmake cmake-command docutils literal"><span class="pre">if(TARGET)</span></code></a> command.</p> |
| <p>The Qt toolkit may contain both debug and release libraries. |
| <span class="target" id="index-1-manual:cmake(1)"></span><a class="reference internal" href="../manual/cmake.1.html#manual:cmake(1)" title="cmake(1)"><code class="xref cmake cmake-manual docutils literal"><span class="pre">cmake(1)</span></code></a> will choose the appropriate version based on the build |
| configuration.</p> |
| <dl class="docutils"> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtCore</span></code></dt> |
| <dd>The QtCore target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtGui</span></code></dt> |
| <dd>The QtGui target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::Qt3Support</span></code></dt> |
| <dd>The Qt3Support target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtAssistant</span></code></dt> |
| <dd>The QtAssistant target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtAssistantClient</span></code></dt> |
| <dd>The QtAssistantClient target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QAxContainer</span></code></dt> |
| <dd>The QAxContainer target (Windows only)</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QAxServer</span></code></dt> |
| <dd>The QAxServer target (Windows only)</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtDBus</span></code></dt> |
| <dd>The QtDBus target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtDeclarative</span></code></dt> |
| <dd>The QtDeclarative target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtDesigner</span></code></dt> |
| <dd>The QtDesigner target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtDesignerComponents</span></code></dt> |
| <dd>The QtDesignerComponents target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtHelp</span></code></dt> |
| <dd>The QtHelp target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtMotif</span></code></dt> |
| <dd>The QtMotif target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtMultimedia</span></code></dt> |
| <dd>The QtMultimedia target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtNetwork</span></code></dt> |
| <dd>The QtNetwork target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtNsPLugin</span></code></dt> |
| <dd>The QtNsPLugin target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtOpenGL</span></code></dt> |
| <dd>The QtOpenGL target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtScript</span></code></dt> |
| <dd>The QtScript target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtScriptTools</span></code></dt> |
| <dd>The QtScriptTools target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtSql</span></code></dt> |
| <dd>The QtSql target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtSvg</span></code></dt> |
| <dd>The QtSvg target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtTest</span></code></dt> |
| <dd>The QtTest target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtUiTools</span></code></dt> |
| <dd>The QtUiTools target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtWebKit</span></code></dt> |
| <dd>The QtWebKit target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtXml</span></code></dt> |
| <dd>The QtXml target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::QtXmlPatterns</span></code></dt> |
| <dd>The QtXmlPatterns target</dd> |
| <dt><code class="docutils literal"><span class="pre">Qt4::phonon</span></code></dt> |
| <dd>The phonon target</dd> |
| </dl> |
| </div> |
| <div class="section" id="result-variables"> |
| <h2>Result Variables<a class="headerlink" href="#result-variables" title="Permalink to this headline">¶</a></h2> |
| <blockquote> |
| <div>Below is a detailed list of variables that FindQt4.cmake sets.</div></blockquote> |
| <dl class="docutils"> |
| <dt><code class="docutils literal"><span class="pre">Qt4_FOUND</span></code></dt> |
| <dd>If false, don’t try to use Qt 4.</dd> |
| <dt><code class="docutils literal"><span class="pre">QT_FOUND</span></code></dt> |
| <dd>If false, don’t try to use Qt. This variable is for compatibility only.</dd> |
| <dt><code class="docutils literal"><span class="pre">QT4_FOUND</span></code></dt> |
| <dd>If false, don’t try to use Qt 4. This variable is for compatibility only.</dd> |
| <dt><code class="docutils literal"><span class="pre">QT_VERSION_MAJOR</span></code></dt> |
| <dd>The major version of Qt found.</dd> |
| <dt><code class="docutils literal"><span class="pre">QT_VERSION_MINOR</span></code></dt> |
| <dd>The minor version of Qt found.</dd> |
| <dt><code class="docutils literal"><span class="pre">QT_VERSION_PATCH</span></code></dt> |
| <dd>The patch version of Qt found.</dd> |
| </dl> |
| </div> |
| </div> |
| |
| |
| </div> |
| </div> |
| </div> |
| <div class="sphinxsidebar" role="navigation" aria-label="main navigation"> |
| <div class="sphinxsidebarwrapper"> |
| <h3><a href="../index.html">Table Of Contents</a></h3> |
| <ul> |
| <li><a class="reference internal" href="#">FindQt4</a><ul> |
| <li><a class="reference internal" href="#finding-and-using-qt4">Finding and Using Qt4</a></li> |
| <li><a class="reference internal" href="#qt-build-tools">Qt Build Tools</a></li> |
| <li><a class="reference internal" href="#qt-macros">Qt Macros</a></li> |
| <li><a class="reference internal" href="#imported-targets">IMPORTED Targets</a></li> |
| <li><a class="reference internal" href="#result-variables">Result Variables</a></li> |
| </ul> |
| </li> |
| </ul> |
| |
| <h4>Previous topic</h4> |
| <p class="topless"><a href="FindQt3.html" |
| title="previous chapter">FindQt3</a></p> |
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