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126 lines
3.9 KiB
126 lines
3.9 KiB
14 years ago
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/extensions/nsplugin/examples/trivial/trivial.doc:1 -->
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>Trivial Example</title>
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<style type="text/css"><!--
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fn { margin-left: 1cm; text-indent: -1cm; }
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a:link { color: #004faf; text-decoration: none }
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a:visited { color: #672967; text-decoration: none }
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body { background: #ffffff; color: black; }
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--></style>
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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 bgcolor="#E5E5E5">
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<td valign=center>
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<a href="index.html">
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<font color="#004faf">Home</font></a>
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| <a href="classes.html">
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<font color="#004faf">All Classes</font></a>
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| <a href="mainclasses.html">
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<font color="#004faf">Main Classes</font></a>
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<font color="#004faf">Annotated</font></a>
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<font color="#004faf">Grouped Classes</font></a>
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<font color="#004faf">Functions</font></a>
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</td>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>Trivial Example</h1>
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<p> This example is trivial, and thus useful for
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investigating problems you might have installing the
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extension.
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<p> To build the example, you must first build the
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<a href="netscape-plugin.html">Qt Netscape Plugin Extension</a> library.
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Then type <tt>make</tt> in <tt>extensions/nsplugin/examples/trivial/</tt>
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and copy the resulting <tt>trivial.so</tt> or <tt>nptrivial.dll</tt>
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to the Plugins directory of your WWW browser.
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<p> <EMBED TYPE=trivial/very WIDTH=100 HEIGHT=100>
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<p> <hr>
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Implementation:
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<p> <pre>// Qt stuff
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#include "qnp.h"
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#include <<a href="qpainter-h.html">qpainter.h</a>>
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#include <<a href="qmessagebox-h.html">qmessagebox.h</a>>
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class Trivial : public <a href="qnpwidget.html">QNPWidget</a> {
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<a href="metaobjects.html#Q_OBJECT">Q_OBJECT</a>
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public:
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void mouseReleaseEvent(QMouseEvent* event)
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{
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<a name="x2736"></a> QMessageBox::<a href="qmessagebox.html#aboutQt">aboutQt</a>(this);
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}
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void paintEvent(QPaintEvent* event)
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{
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<a href="qpainter.html">QPainter</a> p(this);
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<a name="x2739"></a> p.<a href="qpainter.html#setClipRect">setClipRect</a>(event->rect());
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int w = width();
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<a name="x2737"></a> p.<a href="qpainter.html#drawRect">drawRect</a>(rect());
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<a name="x2738"></a> p.<a href="qpainter.html#drawText">drawText</a>(w/8, 0, w-w/4, height(), AlignCenter|WordBreak, "Trivial!");
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}
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};
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class TrivialInstance : public <a href="qnpinstance.html">QNPInstance</a> {
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Q_OBJECT
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public:
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<a href="qnpwidget.html">QNPWidget</a>* newWindow()
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{
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return new Trivial;
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}
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void print(QPainter* p)
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{
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p-><a href="qpainter.html#drawText">drawText</a>(0,0,"Hello");
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}
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};
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class TrivialPlugin : public <a href="qnplugin.html">QNPlugin</a> {
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public:
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<a href="qnpinstance.html">QNPInstance</a>* newInstance()
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{
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return new TrivialInstance;
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}
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const char* getMIMEDescription() const
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{
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return "trivial/very:xxx:Trivial and useless";
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}
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const char * getPluginNameString() const
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{
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return "Trivial Qt-based Plugin";
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}
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const char * getPluginDescriptionString() const
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{
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return "A Qt-based LiveConnected plug-in that does nothing";
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}
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};
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QNPlugin* QNPlugin::create()
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{
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return new TrivialPlugin;
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}
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#include "trivial.moc"
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</pre>
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<p>See also <a href="nsplugin-examples.html">Netscape Plugin Examples</a>.
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<!-- eof -->
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<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>Qt 3.3.8</div>
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</table></div></address></body>
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</html>
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