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<title>Qt 4.1: QStyleOptionTabV2 Class Reference</title>
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<title>Qt 4.2: QStyleOptionTabV2 Class Reference</title>
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<td width="1"> </td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a> · <a href="classes.html"><font color="#004faf">All Classes</font></a> · <a href="mainclasses.html"><font color="#004faf">Main Classes</font></a> · <a href="groups.html"><font color="#004faf">Grouped Classes</font></a> · <a href="modules.html"><font color="#004faf">Modules</font></a> · <a href="functions.html"><font color="#004faf">Functions</font></a></td>
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<td align="right" valign="top" width="230"><img src="images/trolltech-logo.png" align="right" width="203" height="32" border="0" /></td></tr></table><h1 align="center">QStyleOptionTabV2 Class Reference<br /><sup><sup>[<a href="qtgui.html">QtGui</a> module]</sup></sup></h1>
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<td align="right" valign="top" width="230"><a href="http://www.trolltech.com"><img src="images/trolltech-logo.png" align="right" width="203" height="32" border="0" /></a></td></tr></table><h1 align="center">QStyleOptionTabV2 Class Reference<br /><sup><sup>[<a href="qtgui.html">QtGui</a> module]</sup></sup></h1>
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<p>The QStyleOptionTabV2 class is used to describe the parameters necessary for drawing a tabs in Qt 4.1 or above. <a href="#details">More...</a></p>
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<pre>#include <QStyleOptionTabV2></pre><p>Inherits <a href="qstyleoptiontab.html">QStyleOptionTab</a>.</p>
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<pre> #include <QStyleOptionTabV2></pre><p>Inherits <a href="qstyleoptiontab.html">QStyleOptionTab</a>.</p>
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<p>This class was introduced in Qt 4.1.</p>
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<li><a href="qstyleoptiontabv2-members.html">List of all members, including inherited members</a></li>
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<a name="public-types"></a>
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<li><div class="fn"/>enum <b><a href="qstyleoptiontabv2.html#StyleOptionVersion-enum">StyleOptionVersion</a></b> { Version }</li>
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<a name="public-functions"></a>
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<h3>Public Functions</h3>
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<li><div class="fn"/>7 public variables inherited from <a href="qstyleoptiontab.html#public-variables">QStyleOptionTab</a></li>
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<li><div class="fn"/>7 public variables inherited from <a href="qstyleoption.html#public-variables">QStyleOption</a></li>
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<h3>Additional Inherited Members</h3>
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<li><div class="fn"/>2 static public members inherited from <a href="qstyleoptiontab.html#static-public-members">QStyleOptionTab</a></li>
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<li><div class="fn"/>2 static public members inherited from <a href="qstyleoption.html#static-public-members">QStyleOption</a></li>
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<a name="details"></a>
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<h2>Detailed Description</h2>
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<p>The QStyleOptionTabV2 class is used to describe the parameters necessary for drawing a tabs in Qt 4.1 or above.</p>
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<p>An instance of the QStyleOptionTabV2 class has type <a href="qstyleoption.html#OptionType-enum">SO_Tab</a> and <a href="qstyleoption.html#version-varx">version</a> 2. The type is used internally by <a href="qstyleoption.html">QStyleOption</a>, its subclasses, and <a href="qstyleoption.html#qstyleoption_cast">qstyleoption_cast</a>() to determine the type of style option. In general you do not need to worry about this unless you want to create your own <a href="qstyleoption.html">QStyleOption</a> subclass and your own styles. The version is used by <a href="qstyleoption.html">QStyleOption</a> subclasses to implement extensions without breaking compatibility. If you use <a href="qstyleoption.html#qstyleoption_cast">qstyleoption_cast</a>(), you normally don't need to check it.</p>
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<p>An instance of the QStyleOptionTabV2 class has type <a href="qstyleoption.html#OptionType-enum">SO_Tab</a> and <a href="qstyleoption.html#version-var">version</a> 2. The type is used internally by <a href="qstyleoption.html">QStyleOption</a>, its subclasses, and <a href="qstyleoption.html#qstyleoption_cast">qstyleoption_cast</a>() to determine the type of style option. In general you do not need to worry about this unless you want to create your own <a href="qstyleoption.html">QStyleOption</a> subclass and your own styles. The version is used by <a href="qstyleoption.html">QStyleOption</a> subclasses to implement extensions without breaking compatibility. If you use <a href="qstyleoption.html#qstyleoption_cast">qstyleoption_cast</a>(), you normally don't need to check it.</p>
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<p>If you create your own <a href="qstyle.html">QStyle</a> subclass, you should handle both <a href="qstyleoptiontab.html">QStyleOptionTab</a> and QStyleOptionTabV2. One way to achieve this is to use the QStyleOptionTabV2 copy constructor. For example:</p>
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<pre> if (const QStyleOptionTab *tabOption =
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qstyleoption_cast<const QStyleOptionTab *>(option)) {
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QStyleOptionTabV2 tabV2(*tabOption);
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<pre> if (const QStyleOptionTab *tabOption =
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qstyleoption_cast<const QStyleOptionTab *>(option)) {
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QStyleOptionTabV2 tabV2(*tabOption);
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// draw the tab using tabV2
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<span class="comment">// draw the tab using tabV2</span>
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<p>in the example above: If <tt>tabOption</tt>'s version is 1, the extra member (<a href="qstyleoptiontabv2.html#iconSize-var">iconSize</a>) will be set to an invalid size for <tt>tabV2</tt>. If <tt>tabOption</tt>'s version is 2, the constructor will simply copy the <tt>tab</tt>'s <a href="qstyleoptiontabv2.html#iconSize-var">iconSize</a>.</p>
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<p>In the example above: If <tt>tabOption</tt>'s version is 1, the extra member (<a href="qstyleoptiontabv2.html#iconSize-var">iconSize</a>) will be set to an invalid size for <tt>tabV2</tt>. If <tt>tabOption</tt>'s version is 2, the constructor will simply copy the <tt>tab</tt>'s <a href="qstyleoptiontabv2.html#iconSize-var">iconSize</a>.</p>
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<p>For an example demonstrating how style options can be used, see the <a href="widgets-styles.html">Styles</a> example.</p>
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<p>See also <a href="qstyleoptiontab.html">QStyleOptionTab</a> and <a href="qstyleoption.html">QStyleOption</a>.</p>
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<h2>Member Type Documentation</h2>
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<h3 class="fn"><a name="StyleOptionVersion-enum"></a>enum QStyleOptionTabV2::StyleOptionVersion</h3>
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<p>This enum is used to hold information about the version of the style option, and is defined for each <a href="qstyleoption.html">QStyleOption</a> subclass.</p>
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<p><table border="1" cellpadding="2" cellspacing="1" width="100%">
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<tr><th width="25%">Constant</th><th width="15%">Value</th><th width="60%">Description</th></tr>
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<tr><td valign="top"><tt>QStyleOptionTabV2::Version</tt></td><td align="center" valign="top"><tt>2</tt></td><td valign="top">2</td></tr>
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<p>The version is used by <a href="qstyleoption.html">QStyleOption</a> subclasses to implement extensions without breaking compatibility. If you use <a href="qstyleoption.html#qstyleoption_cast">qstyleoption_cast</a>(), you normally don't need to check it.</p>
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<p>See also <a href="qstyleoptiontab.html#StyleOptionType-enum">StyleOptionType</a>.</p>
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<h2>Member Function Documentation</h2>
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<h3 class="fn"><a name="QStyleOptionTabV2"></a>QStyleOptionTabV2::QStyleOptionTabV2 ()</h3>
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<p>Constructs a <a href="qstyleoptiontabv2.html">QStyleOptionTabV2</a>.</p>
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<h2>Member Variable Documentation</h2>
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<h3 class="fn"><a name="iconSize-var"></a><a href="qsize.html">QSize</a> QStyleOptionTabV2::iconSize</h3>
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<p>The size for the icons. If this size is invalid and you need an icon size, you can use <a href="qstyle.html#pixelMetric">QStyle::pixelMetric</a>() to find the default icon size for tab bars.</p>
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<p>See also <a href="qtabbar.html#iconSize-prop">QTabBar::iconSize</a>() and <a href="qstyle.html#pixelMetric">QStyle::pixelMetric</a>().</p>
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<p>This variable holds the size for the icons.</p>
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<p>The default value is <a href="qsize.html">QSize</a>(-1, -1), i.e. an invalid size; use <a href="qstyle.html#pixelMetric">QStyle::pixelMetric</a>() to find the default icon size for tab bars.</p>
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<p>See also <a href="qtabbar.html#iconSize-prop">QTabBar::iconSize</a>().</p>
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