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<title>Style Sheet Example | Qt Widgets 5.12.6</title>
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<td >Qt 5.12</td><td ><a href="qtwidgets-index.html">Qt Widgets</a></td><td ><a href="examples-widgets.html">Qt Widgets Examples</a></td><td >Style Sheet Example</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right"><a href="qtwidgets-index.html">Qt 5.12.6 Reference Documentation</a></td>
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<h3><a name="toc">Contents</a></h3>
<ul>
<li class="level1"><a href="#mainwindow-class">MainWindow Class</a></li>
<li class="level1"><a href="#stylesheeteditor-class">StyleSheetEditor Class</a></li>
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<h1 class="title">Style Sheet Example</h1>
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<p>The Style Sheet Example shows how to use style sheets.</p>
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<div class="border"><p class="centerAlign"><img src="images/stylesheet-pagefold.png" alt="" /></p></div><p class="figCaption">Screen Shot of the Pagefold style sheet</p>
<p>The Style Sheet example shows how widgets can be styled using Qt Style Sheets. You can open the style editor by selecting <b>File</b> > <b>Edit</b> Style Sheet, to select an existing style sheet or design your own style and load it.</p>
<p>The Style Sheet example consists of 2 classes:</p>
<ul>
<li><code>MainWindow</code></li>
<li><code>StyleSheetEditor</code></li>
</ul>
<a name="mainwindow-class"></a>
<h2 id="mainwindow-class">MainWindow Class</h2>
<p><code>MainWindow</code> inherits <a href="qwidget.html">QWidget</a>, and is the application's main window defined in <code>mainwindow.ui</code>. The style of <code>MainWindow</code> can be modified with <code>StyleSheetEditor</code>.</p>
<a name="stylesheeteditor-class"></a>
<h2 id="stylesheeteditor-class">StyleSheetEditor Class</h2>
<p><code>StyleSheetEditor</code> enables you to open an editor where you can load an existing style sheet. It is also possible to define a new stylesheet and load it. Its layout is defined in <code>stylesheeteditor.ui</code>.</p>
<pre class="cpp">
<span class="type">void</span> StyleSheetEditor<span class="operator">::</span>on_styleCombo_activated(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>styleName)
</pre>
<p>Sets the specified <i>styleName</i> and grays the <code>applyButton</code>.</p>
<pre class="cpp">
<span class="type">void</span> StyleSheetEditor<span class="operator">::</span>on_styleSheetCombo_activated(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>sheetName)
</pre>
<p>Loads the stylesheet from <code>styleSheetName</code>.</p>
<pre class="cpp">
<span class="type">void</span> StyleSheetEditor<span class="operator">::</span>on_styleTextEdit_textChanged()
</pre>
<p>Enables the <code>applyButton</code> when the text in the buffer has changed.</p>
<pre class="cpp">
<span class="type">void</span> StyleSheetEditor<span class="operator">::</span>on_applyButton_clicked()
</pre>
<p>Sets the stylesheet properties in <a href="qapplication.html#qApp">qApp</a> and disables the <code>applyButton</code>.</p>
<pre class="cpp">
<span class="type">void</span> StyleSheetEditor<span class="operator">::</span>loadStyleSheet(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>sheetName)
</pre>
<p>Loads the specified <i>sheetName</i>, and sets its properties in <a href="qapplication.html#qApp">qApp</a>.</p>
<p>Files:</p>
<ul>
<li><a href="qtwidgets-widgets-stylesheet-layouts-default-ui.html">widgets/stylesheet/layouts/default.ui</a></li>
<li><a href="qtwidgets-widgets-stylesheet-layouts-pagefold-ui.html">widgets/stylesheet/layouts/pagefold.ui</a></li>
<li><a href="qtwidgets-widgets-stylesheet-main-cpp.html">widgets/stylesheet/main.cpp</a></li>
<li><a href="qtwidgets-widgets-stylesheet-mainwindow-cpp.html">widgets/stylesheet/mainwindow.cpp</a></li>
<li><a href="qtwidgets-widgets-stylesheet-mainwindow-h.html">widgets/stylesheet/mainwindow.h</a></li>
<li><a href="qtwidgets-widgets-stylesheet-mainwindow-ui.html">widgets/stylesheet/mainwindow.ui</a></li>
<li><a href="qtwidgets-widgets-stylesheet-stylesheet-pro.html">widgets/stylesheet/stylesheet.pro</a></li>
<li><a href="qtwidgets-widgets-stylesheet-stylesheet-qrc.html">widgets/stylesheet/stylesheet.qrc</a></li>
<li><a href="qtwidgets-widgets-stylesheet-stylesheeteditor-cpp.html">widgets/stylesheet/stylesheeteditor.cpp</a></li>
<li><a href="qtwidgets-widgets-stylesheet-stylesheeteditor-h.html">widgets/stylesheet/stylesheeteditor.h</a></li>
<li><a href="qtwidgets-widgets-stylesheet-stylesheeteditor-ui.html">widgets/stylesheet/stylesheeteditor.ui</a></li>
</ul>
<p>Images:</p>
<ul>
<li><a href="images/used-in-examples/widgets/stylesheet/images/checkbox_checked.png">widgets/stylesheet/images/checkbox_checked.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/checkbox_checked_hover.png">widgets/stylesheet/images/checkbox_checked_hover.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/checkbox_checked_pressed.png">widgets/stylesheet/images/checkbox_checked_pressed.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/checkbox_unchecked.png">widgets/stylesheet/images/checkbox_unchecked.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/checkbox_unchecked_hover.png">widgets/stylesheet/images/checkbox_unchecked_hover.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/checkbox_unchecked_pressed.png">widgets/stylesheet/images/checkbox_unchecked_pressed.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/down_arrow.png">widgets/stylesheet/images/down_arrow.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/down_arrow_disabled.png">widgets/stylesheet/images/down_arrow_disabled.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/frame.png">widgets/stylesheet/images/frame.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/pagefold.png">widgets/stylesheet/images/pagefold.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/pushbutton.png">widgets/stylesheet/images/pushbutton.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/pushbutton_hover.png">widgets/stylesheet/images/pushbutton_hover.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/pushbutton_pressed.png">widgets/stylesheet/images/pushbutton_pressed.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/radiobutton_checked.png">widgets/stylesheet/images/radiobutton_checked.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/radiobutton_checked_hover.png">widgets/stylesheet/images/radiobutton_checked_hover.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/radiobutton_checked_pressed.png">widgets/stylesheet/images/radiobutton_checked_pressed.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/radiobutton_unchecked.png">widgets/stylesheet/images/radiobutton_unchecked.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/radiobutton_unchecked_hover.png">widgets/stylesheet/images/radiobutton_unchecked_hover.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/radiobutton_unchecked_pressed.png">widgets/stylesheet/images/radiobutton_unchecked_pressed.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/sizegrip.png">widgets/stylesheet/images/sizegrip.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/spindown.png">widgets/stylesheet/images/spindown.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/spindown_hover.png">widgets/stylesheet/images/spindown_hover.png</a></li>
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<li><a href="images/used-in-examples/widgets/stylesheet/images/spinup.png">widgets/stylesheet/images/spinup.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/spinup_hover.png">widgets/stylesheet/images/spinup_hover.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/spinup_off.png">widgets/stylesheet/images/spinup_off.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/spinup_pressed.png">widgets/stylesheet/images/spinup_pressed.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/up_arrow.png">widgets/stylesheet/images/up_arrow.png</a></li>
<li><a href="images/used-in-examples/widgets/stylesheet/images/up_arrow_disabled.png">widgets/stylesheet/images/up_arrow_disabled.png</a></li>
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