/usr/share/qt5/doc/qtgraphicaleffects/qml-qtgraphicaleffects-conicalgradient.html is in qtgraphicaleffects5-doc-html 5.2.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 | <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en_US" lang="en_US">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- ConicalGradient.qml -->
<title>ConicalGradient | QtGraphicalEffects 5.2</title>
<link rel="stylesheet" type="text/css" href="style/offline.css" />
</head>
<body>
<div class="header" id="qtdocheader">
<div class="main">
<div class="main-rounded">
<div class="navigationbar">
<ul>
<li>Qt 5.2</li>
<li><a href="qtgraphicaleffects-index.html">Qt Graphical Effects</a></li>
<li><a href="graphicaleffects.html">QML Types</a></li>
<li>ConicalGradient</li>
<li id="buildversion">
Qt 5.2.1 Reference Documentation</li>
</ul>
</div>
</div>
<div class="content">
<div class="line">
<div class="content mainContent">
<div class="toc">
<h3><a name="toc">Contents</a></h3>
<ul>
<li class="level1"><a href="#properties">Properties</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
<li class="level2"><a href="#example">Example</a></li>
</ul>
</div>
<h1 class="title">ConicalGradient</h1>
<span class="subtitle"></span>
<!-- $$$ConicalGradient-brief -->
<p>Draws a conical gradient. <a href="#details">More...</a></p>
<!-- @@@ConicalGradient -->
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> Import Statement:</td><td class="memItemRight bottomAlign"> </b><tt>import QtGraphicalEffects 1.0</tt></td></tr><tr><td class="memItemLeft rightAlign topAlign"> Since:</td><td class="memItemRight bottomAlign"> QtGraphicalEffects 1.0</td></tr></table><ul>
<li><a href="qml-qtgraphicaleffects-conicalgradient-members.html">List of all members, including inherited members</a></li>
</ul>
<a name="properties"></a>
<h2>Properties</h2>
<ul>
<li class="fn"><b><b><a href="qml-qtgraphicaleffects-conicalgradient.html#angle-prop">angle</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-qtgraphicaleffects-conicalgradient.html#cached-prop">cached</a></b></b> : bool</li>
<li class="fn"><b><b><a href="qml-qtgraphicaleffects-conicalgradient.html#gradient-prop">gradient</a></b></b> : Gradient</li>
<li class="fn"><b><b><a href="qml-qtgraphicaleffects-conicalgradient.html#horizontalOffset-prop">horizontalOffset</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-qtgraphicaleffects-conicalgradient.html#source-prop">source</a></b></b> : variant</li>
<li class="fn"><b><b><a href="qml-qtgraphicaleffects-conicalgradient.html#verticalOffset-prop">verticalOffset</a></b></b> : real</li>
</ul>
<!-- $$$ConicalGradient-description -->
<a name="details"></a>
<h2>Detailed Description</h2>
<p>A gradient is defined by two or more colors, which are blended seamlessly. The colors start from the specified angle and end at 360 degrees larger angle value.</p>
<table class="generic">
<thead><tr class="qt-style"><th >Effect applied</th></tr></thead>
<tr valign="top" class="odd"><td ><p class="centerAlign"><img src="images/ConicalGradient.png" alt="" /></p></td></tr>
</table>
<a name="example"></a>
<h2>Example</h2>
<p>The following example shows how to apply the effect.</p>
<pre class="qml">import QtQuick 2.0
import QtGraphicalEffects 1.0
<span class="type">Item</span> {
<span class="name">width</span>: <span class="number">300</span>
<span class="name">height</span>: <span class="number">300</span>
<span class="type">ConicalGradient</span> {
<span class="name">anchors</span>.fill: <span class="name">parent</span>
<span class="name">angle</span>: <span class="number">0.0</span>
<span class="name">gradient</span>: <span class="name">Gradient</span> {
<span class="type">GradientStop</span> { <span class="name">position</span>: <span class="number">0.0</span>; <span class="name">color</span>: <span class="string">"white"</span> }
<span class="type">GradientStop</span> { <span class="name">position</span>: <span class="number">1.0</span>; <span class="name">color</span>: <span class="string">"black"</span> }
}
}
}</pre>
<!-- @@@ConicalGradient -->
<h2>Property Documentation</h2>
<!-- $$$angle -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="angle-prop"></a><span class="name">angle</span> : <span class="type">real</span></p></td></tr></table></div><div class="qmldoc"><p>This property defines the starting angle where the color at the gradient position of 0.0 is rendered. Colors at larger position values are rendered into larger angle values and blended seamlessly. Angle values increase clockwise.</p>
<table class="generic">
<thead><tr class="qt-style"><th >Output examples with different angle values</th><th ></th><th ></th></tr></thead>
<tr valign="top" class="odd"><td ><p class="centerAlign"><img src="images/ConicalGradient_angle1.png" alt="" /></p></td><td ><p class="centerAlign"><img src="images/ConicalGradient_angle2.png" alt="" /></p></td><td ><p class="centerAlign"><img src="images/ConicalGradient_angle3.png" alt="" /></p></td></tr>
<tr valign="top" class="even"><td ><b> angle: 0 </b></td><td ><b> angle: 45 </b></td><td ><b> angle: 185 </b></td></tr>
<tr valign="top" class="odd"><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#horizontalOffset-prop">horizontalOffset</a>: 0</td><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#horizontalOffset-prop">horizontalOffset</a>: 0</td><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#horizontalOffset-prop">horizontalOffset</a>: 0</td></tr>
<tr valign="top" class="even"><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#verticalOffset-prop">verticalOffset</a>: 0</td><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#verticalOffset-prop">verticalOffset</a>: 0</td><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#verticalOffset-prop">verticalOffset</a>: 0</td></tr>
</table>
</div></div><!-- @@@angle -->
<br/>
<!-- $$$cached -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="cached-prop"></a><span class="name">cached</span> : <span class="type">bool</span></p></td></tr></table></div><div class="qmldoc"><p>This property allows the effect output pixels to be cached in order to improve the rendering performance.</p>
<p>Every time the source or effect properties are changed, the pixels in the cache must be updated. Memory consumption is increased, because an extra buffer of memory is required for storing the effect output.</p>
<p>It is recommended to disable the cache when the source or the effect properties are animated.</p>
<p>By default, the property is set to <tt>false</tt>.</p>
</div></div><!-- @@@cached -->
<br/>
<!-- $$$gradient -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="gradient-prop"></a><span class="name">gradient</span> : <span class="type">Gradient</span></p></td></tr></table></div><div class="qmldoc"><p>A gradient is defined by two or more colors, which are blended seamlessly. The colors are specified as a set of GradientStop child items, each of which defines a position on the gradient (from 0.0 to 1.0), and a color. The position of each GradientStop is defined by the position property. The color is defined by the color property.</p>
<table class="generic">
<thead><tr class="qt-style"><th >Output examples with different gradient values</th><th ></th><th ></th></tr></thead>
<tr valign="top" class="odd"><td ><p class="centerAlign"><img src="images/ConicalGradient_gradient1.png" alt="" /></p></td><td ><p class="centerAlign"><img src="images/ConicalGradient_gradient2.png" alt="" /></p></td><td ><p class="centerAlign"><img src="images/ConicalGradient_gradient3.png" alt="" /></p></td></tr>
<tr valign="top" class="even"><td ><b>gradient:</b><pre class="cpp">Gradient {
GradientStop { position: <span class="number">0.000</span>
color: <span class="type">Qt</span><span class="operator">.</span>rgba(<span class="number">1</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span>) }
GradientStop { position: <span class="number">0.167</span>;
color: <span class="type">Qt</span><span class="operator">.</span>rgba(<span class="number">1</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span>) }
GradientStop { position: <span class="number">0.333</span>;
color: <span class="type">Qt</span><span class="operator">.</span>rgba(<span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span>) }
GradientStop { position: <span class="number">0.500</span>;
color: <span class="type">Qt</span><span class="operator">.</span>rgba(<span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span>) }
GradientStop { position: <span class="number">0.667</span>;
color: <span class="type">Qt</span><span class="operator">.</span>rgba(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span>) }
GradientStop { position: <span class="number">0.833</span>;
color: <span class="type">Qt</span><span class="operator">.</span>rgba(<span class="number">1</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span>) }
GradientStop { position: <span class="number">1.000</span>;
color: <span class="type">Qt</span><span class="operator">.</span>rgba(<span class="number">1</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span>) }
}</pre>
</td><td ><b>gradient:</b><pre class="cpp">Gradient {
GradientStop { position: <span class="number">0.0</span>
color: <span class="string">"#F0F0F0"</span>
}
GradientStop { position: <span class="number">0.5</span>
color: <span class="string">"#000000"</span>
}
GradientStop { position: <span class="number">1.0</span>
color: <span class="string">"#F0F0F0"</span>
}
}</pre>
</td><td ><b>gradient:</b><pre class="cpp">Gradient {
GradientStop { position: <span class="number">0.0</span>
color: <span class="string">"#00000000"</span>
}
GradientStop { position: <span class="number">1.0</span>
color: <span class="string">"#FF000000"</span>
}
}</pre>
</td></tr>
<tr valign="top" class="odd"><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#angle-prop">angle</a>: 0</td><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#angle-prop">angle</a>: 0</td><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#angle-prop">angle</a>: 0</td></tr>
<tr valign="top" class="even"><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#horizontalOffset-prop">horizontalOffset</a>: 0</td><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#horizontalOffset-prop">horizontalOffset</a>: 0</td><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#horizontalOffset-prop">horizontalOffset</a>: 0</td></tr>
<tr valign="top" class="odd"><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#verticalOffset-prop">verticalOffset</a>: 0</td><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#verticalOffset-prop">verticalOffset</a>: 0</td><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#verticalOffset-prop">verticalOffset</a>: 0</td></tr>
</table>
</div></div><!-- @@@gradient -->
<br/>
<!-- $$$horizontalOffset -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="horizontalOffset-prop"></a><span class="name">horizontalOffset</span> : <span class="type">real</span></p></td></tr></table></div><div class="qmldoc"><p>The horizontalOffset and <a href="qml-qtgraphicaleffects-conicalgradient.html#verticalOffset-prop">verticalOffset</a> properties define the offset in pixels for the center point of the gradient compared to the item center.</p>
<p>The value ranges from -inf to inf. By default, the properties are set to <tt>0</tt>.</p>
<table class="generic">
<thead><tr class="qt-style"><th >Output examples with different horizontalOffset values</th><th ></th><th ></th></tr></thead>
<tr valign="top" class="odd"><td ><p class="centerAlign"><img src="images/ConicalGradient_horizontalOffset1.png" alt="" /></p></td><td ><p class="centerAlign"><img src="images/ConicalGradient_horizontalOffset2.png" alt="" /></p></td><td ><p class="centerAlign"><img src="images/ConicalGradient_horizontalOffset3.png" alt="" /></p></td></tr>
<tr valign="top" class="even"><td ><b> horizontalOffset: -50 </b></td><td ><b> horizontalOffset: 0 </b></td><td ><b> horizontalOffset: 50 </b></td></tr>
<tr valign="top" class="odd"><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#angle-prop">angle</a>: 0</td><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#angle-prop">angle</a>: 0</td><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#angle-prop">angle</a>: 0</td></tr>
<tr valign="top" class="even"><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#verticalOffset-prop">verticalOffset</a>: 0</td><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#verticalOffset-prop">verticalOffset</a>: 0</td><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#verticalOffset-prop">verticalOffset</a>: 0</td></tr>
</table>
</div></div><!-- @@@horizontalOffset -->
<br/>
<!-- $$$source -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="source-prop"></a><span class="name">source</span> : <span class="type">variant</span></p></td></tr></table></div><div class="qmldoc"><p>This property defines the item that is going to be filled with gradient. Source item gets rendered into an intermediate pixel buffer and the alpha values from the result are used to determine the gradient's pixels visibility in the display. The default value for source is undefined and in that case whole effect area is filled with gradient.</p>
<table class="generic">
<thead><tr class="qt-style"><th >Output examples with different source values</th><th ></th></tr></thead>
<tr valign="top" class="odd"><td ><p class="centerAlign"><img src="images/ConicalGradient_maskSource1.png" alt="" /></p></td><td ><p class="centerAlign"><img src="images/ConicalGradient_maskSource2.png" alt="" /></p></td></tr>
<tr valign="top" class="even"><td ><b> source: undefined </b></td><td ><b> source: </b></td></tr>
<tr valign="top" class="odd"><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#angle-prop">angle</a>: 0</td><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#angle-prop">angle</a>: 0</td></tr>
<tr valign="top" class="even"><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#horizontalOffset-prop">horizontalOffset</a>: 0</td><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#horizontalOffset-prop">horizontalOffset</a>: 0</td></tr>
<tr valign="top" class="odd"><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#verticalOffset-prop">verticalOffset</a>: 0</td><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#verticalOffset-prop">verticalOffset</a>: 0</td></tr>
</table>
<p><b>Note: </b>It is not supported to let the effect include itself, for instance by setting source to the effect's parent.</p></div></div><!-- @@@source -->
<br/>
<!-- $$$verticalOffset -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="verticalOffset-prop"></a><span class="name">verticalOffset</span> : <span class="type">real</span></p></td></tr></table></div><div class="qmldoc"><p>The <a href="qml-qtgraphicaleffects-conicalgradient.html#horizontalOffset-prop">horizontalOffset</a> and verticalOffset properties define the offset in pixels for the center point of the gradient compared to the item center.</p>
<p>The value ranges from -inf to inf. By default, the properties are set to <tt>0</tt>.</p>
<table class="generic">
<thead><tr class="qt-style"><th >Output examples with different <a href="qml-qtgraphicaleffects-conicalgradient.html#horizontalOffset-prop">horizontalOffset</a> values</th><th ></th><th ></th></tr></thead>
<tr valign="top" class="odd"><td ><p class="centerAlign"><img src="images/ConicalGradient_horizontalOffset1.png" alt="" /></p></td><td ><p class="centerAlign"><img src="images/ConicalGradient_horizontalOffset2.png" alt="" /></p></td><td ><p class="centerAlign"><img src="images/ConicalGradient_horizontalOffset3.png" alt="" /></p></td></tr>
<tr valign="top" class="even"><td ><b> <a href="qml-qtgraphicaleffects-conicalgradient.html#horizontalOffset-prop">horizontalOffset</a>: -50 </b></td><td ><b> <a href="qml-qtgraphicaleffects-conicalgradient.html#horizontalOffset-prop">horizontalOffset</a>: 0 </b></td><td ><b> <a href="qml-qtgraphicaleffects-conicalgradient.html#horizontalOffset-prop">horizontalOffset</a>: 50 </b></td></tr>
<tr valign="top" class="odd"><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#angle-prop">angle</a>: 0</td><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#angle-prop">angle</a>: 0</td><td ><a href="qml-qtgraphicaleffects-conicalgradient.html#angle-prop">angle</a>: 0</td></tr>
<tr valign="top" class="even"><td >verticalOffset: 0</td><td >verticalOffset: 0</td><td >verticalOffset: 0</td></tr>
</table>
</div></div><!-- @@@verticalOffset -->
<br/>
</div>
</div>
</div>
</div>
</div>
<div class="footer">
<p>
<acronym title="Copyright">©</acronym> 2013 Digia Plc and/or its
subsidiaries. Documentation contributions included herein are the copyrights of
their respective owners.<br> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br> Digia, Qt and their respective logos are trademarks of Digia Plc in Finland and/or other countries worldwide. All other trademarks are property
of their respective owners. </p>
</div>
</body>
</html>
|