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<p>QPainter subclass used internally.  
 <a href="classQCPPainter.html#details">More...</a></p>

<p>Inherits QPainter.</p>
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Public Types</h2></td></tr>
<tr class="memitem:a156cf16444ff5e0d81a73c615fdb156d"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPPainter.html#a156cf16444ff5e0d81a73c615fdb156d">PainterMode</a> </td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Functions</h2></td></tr>
<tr class="memitem:a3c52cb0f43f34573d29bea487da28fe8"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPPainter.html#a3c52cb0f43f34573d29bea487da28fe8">QCPPainter</a> ()</td></tr>
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<tr class="memitem:ae58dbb1795ddc4351ab324dc9898aa22"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPPainter.html#ae58dbb1795ddc4351ab324dc9898aa22">QCPPainter</a> (QPaintDevice *device)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>antialiasing</b> () const </td></tr>
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PainterModes&#160;</td><td class="memItemRight" valign="bottom"><b>modes</b> () const </td></tr>
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<tr class="memitem:aaba1deb9188244d9ea65b035112b4d05"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPPainter.html#aaba1deb9188244d9ea65b035112b4d05">setAntialiasing</a> (bool enabled)</td></tr>
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<tr class="memitem:af6b1f7d2bbc548b10aa55d8b6ad49577"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPPainter.html#af6b1f7d2bbc548b10aa55d8b6ad49577">setMode</a> (<a class="el" href="classQCPPainter.html#a156cf16444ff5e0d81a73c615fdb156d">PainterMode</a> mode, bool enabled=true)</td></tr>
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<tr class="memitem:a5fac93adc29c7c4dea9f3e171e9e635e"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPPainter.html#a5fac93adc29c7c4dea9f3e171e9e635e">setModes</a> (PainterModes modes)</td></tr>
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<tr class="memitem:a0a41146ccd619dceab6e25ec7b46b044"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPPainter.html#a0a41146ccd619dceab6e25ec7b46b044">begin</a> (QPaintDevice *device)</td></tr>
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<tr class="memitem:af9c7a4cd1791403901f8c5b82a150195"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPPainter.html#af9c7a4cd1791403901f8c5b82a150195">setPen</a> (const QPen &amp;pen)</td></tr>
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<tr class="memitem:a5c4d88f21564e156e88ef807f7cf0003"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPPainter.html#a5c4d88f21564e156e88ef807f7cf0003">setPen</a> (const QColor &amp;color)</td></tr>
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<tr class="memitem:a0b4b1b9bd495e182c731774dc800e6e0"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPPainter.html#a0b4b1b9bd495e182c731774dc800e6e0">drawLine</a> (const QLineF &amp;line)</td></tr>
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void&#160;</td><td class="memItemRight" valign="bottom"><b>drawLine</b> (const QPointF &amp;p1, const QPointF &amp;p2)</td></tr>
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<tr class="memitem:a64908e6298d5bbd83457dc987cc3a022"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPPainter.html#a64908e6298d5bbd83457dc987cc3a022">restore</a> ()</td></tr>
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<tr class="memitem:a7e63fbcf47e35c6f2ecd11b8fef7c7d8"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPPainter.html#a7e63fbcf47e35c6f2ecd11b8fef7c7d8">makeNonCosmetic</a> ()</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>QPainter subclass used internally. </p>
<p>This QPainter subclass is used to provide some extended functionality e.g. for tweaking position consistency between antialiased and non-antialiased painting. Further it provides workarounds for QPainter quirks.</p>
<dl class="section warning"><dt>Warning</dt><dd>This class intentionally hides non-virtual functions of QPainter, e.g. setPen, save and restore. So while it is possible to pass a <a class="el" href="classQCPPainter.html" title="QPainter subclass used internally. ">QCPPainter</a> instance to a function that expects a QPainter pointer, some of the workarounds and tweaks will be unavailable to the function (because it will call the base class implementations of the functions actually hidden by <a class="el" href="classQCPPainter.html" title="QPainter subclass used internally. ">QCPPainter</a>). </dd></dl>
</div><h2 class="groupheader">Member Enumeration Documentation</h2>
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          <td class="memname">enum <a class="el" href="classQCPPainter.html#a156cf16444ff5e0d81a73c615fdb156d">QCPPainter::PainterMode</a></td>
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<p>Defines special modes the painter can operate in. They disable or enable certain subsets of features/fixes/workarounds, depending on whether they are wanted on the respective output device. </p>
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><em><a class="anchor" id="a156cf16444ff5e0d81a73c615fdb156da3bac5e87e3d58553b297befb4eee2a45"></a>pmDefault</em>&#160;</td><td class="fielddoc">
<p><code>0x00</code> Default mode for painting on screen devices </p>
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<p><code>0x01</code> Mode for vectorized painting (e.g. PDF export). For example, this prevents some antialiasing fixes. </p>
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<p><code>0x02</code> Mode for all sorts of exports (e.g. PNG, PDF,...). For example, this prevents using cached pixmap labels </p>
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<tr><td class="fieldname"><em><a class="anchor" id="a156cf16444ff5e0d81a73c615fdb156dac1e481bfaf408f2bd2eaad3ec341f36b"></a>pmNonCosmetic</em>&#160;</td><td class="fielddoc">
<p><code>0x04</code> Turns pen widths 0 to 1, i.e. disables cosmetic pens. (A cosmetic pen is always drawn with width 1 pixel in the vector image/pdf viewer, independent of zoom.) </p>
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<h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
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<p>Creates a new <a class="el" href="classQCPPainter.html" title="QPainter subclass used internally. ">QCPPainter</a> instance and sets default values </p>

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<p>Creates a new <a class="el" href="classQCPPainter.html" title="QPainter subclass used internally. ">QCPPainter</a> instance on the specified paint <em>device</em> and sets default values. Just like the analogous QPainter constructor, begins painting on <em>device</em> immediately.</p>
<p>Like <a class="el" href="classQCPPainter.html#a0a41146ccd619dceab6e25ec7b46b044">begin</a>, this method sets QPainter::NonCosmeticDefaultPen in Qt versions before Qt5. </p>

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<h2 class="groupheader">Member Function Documentation</h2>
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<p>Sets whether painting uses antialiasing or not. Use this method instead of using setRenderHint with QPainter::Antialiasing directly, as it allows <a class="el" href="classQCPPainter.html" title="QPainter subclass used internally. ">QCPPainter</a> to regain pixel exactness between antialiased and non-antialiased painting (Since Qt &lt; 5.0 uses slightly different coordinate systems for AA/Non-AA painting). </p>

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          <td class="paramtype"><a class="el" href="classQCPPainter.html#a156cf16444ff5e0d81a73c615fdb156d">QCPPainter::PainterMode</a>&#160;</td>
          <td class="paramname"><em>mode</em>, </td>
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<p>This is an overloaded function.</p>
<p>Sets the mode of the painter. This controls whether the painter shall adjust its fixes/workarounds optimized for certain output devices. </p>

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          <td class="paramname"><em>modes</em></td><td>)</td>
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<p>Sets the mode of the painter. This controls whether the painter shall adjust its fixes/workarounds optimized for certain output devices. </p>

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<p>Sets the QPainter::NonCosmeticDefaultPen in Qt versions before Qt5 after beginning painting on <em>device</em>. This is necessary to get cosmetic pen consistency across Qt versions, because since Qt5, all pens are non-cosmetic by default, and in Qt4 this render hint must be set to get that behaviour.</p>
<p>The Constructor <a class="el" href="classQCPPainter.html#ae58dbb1795ddc4351ab324dc9898aa22">QCPPainter(QPaintDevice *device)</a> which directly starts painting also sets the render hint as appropriate.</p>
<dl class="section note"><dt>Note</dt><dd>this function hides the non-virtual base class implementation. </dd></dl>

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<p>Sets the pen of the painter and applies certain fixes to it, depending on the mode of this <a class="el" href="classQCPPainter.html" title="QPainter subclass used internally. ">QCPPainter</a>.</p>
<dl class="section note"><dt>Note</dt><dd>this function hides the non-virtual base class implementation. </dd></dl>

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<p>This is an overloaded function.</p>
<p>Sets the pen (by color) of the painter and applies certain fixes to it, depending on the mode of this <a class="el" href="classQCPPainter.html" title="QPainter subclass used internally. ">QCPPainter</a>.</p>
<dl class="section note"><dt>Note</dt><dd>this function hides the non-virtual base class implementation. </dd></dl>

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<p>This is an overloaded function.</p>
<p>Sets the pen (by style) of the painter and applies certain fixes to it, depending on the mode of this <a class="el" href="classQCPPainter.html" title="QPainter subclass used internally. ">QCPPainter</a>.</p>
<dl class="section note"><dt>Note</dt><dd>this function hides the non-virtual base class implementation. </dd></dl>

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<p>This is an overloaded function.</p>
<p>Works around a Qt bug introduced with Qt 4.8 which makes drawing QLineF unpredictable when antialiasing is disabled. Thus when antialiasing is disabled, it rounds the <em>line</em> to integer coordinates and then passes it to the original drawLine.</p>
<dl class="section note"><dt>Note</dt><dd>this function hides the non-virtual base class implementation. </dd></dl>

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<p>Saves the painter (see QPainter::save). Since <a class="el" href="classQCPPainter.html" title="QPainter subclass used internally. ">QCPPainter</a> adds some new internal state to QPainter, the save/restore functions are reimplemented to also save/restore those members.</p>
<dl class="section note"><dt>Note</dt><dd>this function hides the non-virtual base class implementation.</dd></dl>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classQCPPainter.html#a64908e6298d5bbd83457dc987cc3a022">restore</a> </dd></dl>

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<p>Restores the painter (see QPainter::restore). Since <a class="el" href="classQCPPainter.html" title="QPainter subclass used internally. ">QCPPainter</a> adds some new internal state to QPainter, the save/restore functions are reimplemented to also save/restore those members.</p>
<dl class="section note"><dt>Note</dt><dd>this function hides the non-virtual base class implementation.</dd></dl>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classQCPPainter.html#a8fd6821ee6fecbfa04444c9062912abd">save</a> </dd></dl>

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          <td class="memname">void QCPPainter::makeNonCosmetic </td>
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<p>Changes the pen width to 1 if it currently is 0. This function is called in the <a class="el" href="classQCPPainter.html#af9c7a4cd1791403901f8c5b82a150195">setPen</a> overrides when the <a class="el" href="classQCPPainter.html#a156cf16444ff5e0d81a73c615fdb156dac1e481bfaf408f2bd2eaad3ec341f36b">pmNonCosmetic</a> mode is set. </p>

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<hr/>The documentation for this class was generated from the following files:<ul>
<li>src/painter.h</li>
<li>src/painter.cpp</li>
</ul>
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