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50 lines
3.4 KiB
HTML
50 lines
3.4 KiB
HTML
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<?xml version="1.0" encoding="iso-8859-1"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
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<!-- canvas_variant.qdoc -->
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<head>
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<title>Variant Based Canvas Example</title>
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<link href="classic.css" rel="stylesheet" type="text/css" />
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</head>
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<body>
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<table border="0" cellpadding="0" cellspacing="0" width="100%">
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<tr>
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<td align="left" valign="top" width="32"><img src="images/qt-logo.png" align="left" width="57" height="67" border="0" /></td>
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<td width="1"> </td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a></td>
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</tr></table><h1 class="title">Variant Based Canvas Example<br /><span class="subtitle"></span>
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</h1>
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<p>This example demonstrates how to use the <a href="qtvariantpropertymanager.html">QtVariantPropertyManager</a> convenience class for all property types. In this approach only one instance of the property manager class is used, and the developer interfaces with a dynamic API based on <a href="http://qt.nokia.com/doc/4.6/qvariant.html">QVariant</a>.</p>
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<p align="center"><img src="images/canvas_variant.png" /></p><p>The example presents a canvas filled up with items of different types, and a tree property browser which displays the currently selected item's properties.</p>
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<p>All item types has a few common properties like "Position X", "Position Y" or "Position Z", but each type also adds its own type-specific properties (e.g. the text items provide "Text" and "Font" properties, and the line items provide a "Vector" property).</p>
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<p>The source files can be found in examples/canvas_variant directory of the package.</p>
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<a name="third-party-copyright-notice"></a>
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<h2>Third party copyright notice</h2>
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<p>The canvas class used in this example contains third party code with the following copyright notice:</p>
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<div style="padding: 0.5em; background: #e0e0e0; color: black"><pre> Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the name of Digital not be
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used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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SOFTWARE.</pre>
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</div><p /><address><hr /><div align="center">
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<table width="100%" cellspacing="0" border="0"><tr class="address">
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<td width="30%" align="left">Copyright © 2010 Nokia Corporation and/or its subsidiary(-ies)</td>
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<td width="40%" align="center"><a href="http://qt.nokia.com/doc/trademarks.html">Trademarks</a></td>
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<td width="30%" align="right"><div align="right">Qt Solutions</div></td>
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</tr></table></div></address></body>
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</html>
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