summaryrefslogtreecommitdiffstats
path: root/doc/html/qnpwidget.html
blob: 22fb216d03962a00e44a72551db60335f6273db6 (plain)
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
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/extensions/nsplugin/src/qnp.cpp:750 -->
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>QNPWidget Class</title>
<style type="text/css"><!--
fn { margin-left: 1cm; text-indent: -1cm; }
a:link { color: #004faf; text-decoration: none }
a:visited { color: #672967; text-decoration: none }
body { background: #ffffff; color: black; }
--></style>
</head>
<body>

<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr bgcolor="#E5E5E5">
<td valign=center>
 <a href="index.html">
<font color="#004faf">Home</font></a>
 | <a href="classes.html">
<font color="#004faf">All&nbsp;Classes</font></a>
 | <a href="mainclasses.html">
<font color="#004faf">Main&nbsp;Classes</font></a>
 | <a href="annotated.html">
<font color="#004faf">Annotated</font></a>
 | <a href="groups.html">
<font color="#004faf">Grouped&nbsp;Classes</font></a>
 | <a href="functions.html">
<font color="#004faf">Functions</font></a>
</td>
<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QNPWidget Class Reference</h1>

<p>The QNPWidget class provides a QWidget that is a web browser plugin window.
<a href="#details">More...</a>
<p>This class is part of the <b>Qt Netscape Extension</b>.
<p><tt>#include &lt;<a href="qnp-h.html">qnp.h</a>&gt;</tt>
<p>Inherits <a href="qwidget.html">QWidget</a>.
<p><a href="qnpwidget-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li class=fn><a href="#QNPWidget"><b>QNPWidget</b></a> ()</li>
<li class=fn><a href="#~QNPWidget"><b>~QNPWidget</b></a> ()</li>
<li class=fn>virtual void <a href="#enterInstance"><b>enterInstance</b></a> ()</li>
<li class=fn>virtual void <a href="#leaveInstance"><b>leaveInstance</b></a> ()</li>
<li class=fn>QNPInstance * <a href="#instance"><b>instance</b></a> ()</li>
</ul>
<hr><a name="details"></a><h2>Detailed Description</h2>
<p> This class is defined in the <b>Qt <a href="netscape-plugin.html#Netscape">Netscape</a> Extension</b>, which can be found in the <tt>qt/extensions</tt> directory. It is not included in the main Qt API.
<p>

The QNPWidget class provides a <a href="qwidget.html">QWidget</a> that is a web browser plugin window.
<p> 
<p> Derive from QNPWidget to create a widget that can be used as a
web browser plugin window, or create one and add child widgets.
Instances of QNPWidget may only be created when
<a href="qnpinstance.html#newWindow">QNPInstance::newWindow</a>() is called by the browser.
<p> A common way to develop a plugin widget is to develop it as a
stand-alone application window, then make it a <em>child</em> of a
plugin widget to use it as a browser plugin. The technique is:
<p> <pre>
class MyPluginWindow : public QNPWidget
{
    <a href="qwidget.html">QWidget</a>* child;
public:
    MyPluginWindow()
    {
        // Some widget that is normally used as a top-level widget
        child = new MyIndependentlyDevelopedWidget();

        // Use the background color of the web page
        child-&gt;<a href="qwidget.html#setBackgroundColor">setBackgroundColor</a>( <a href="qwidget.html#backgroundColor">backgroundColor</a>() );

        // Fill the plugin widget
        child-&gt;<a href="qwidget.html#setGeometry">setGeometry</a>( 0, 0, width(), height() );
    }

    void resizeEvent(QResizeEvent*)
    {
        // Fill the plugin widget
        child-&gt;<a href="qwidget.html#resize">resize</a>(<a href="qwidget.html#size">size</a>());
    }
};
</pre>
 
<p> The default implementation is an empty window.

<hr><h2>Member Function Documentation</h2>
<h3 class=fn><a name="QNPWidget"></a>QNPWidget::QNPWidget ()
</h3>
Creates a QNPWidget.

<h3 class=fn><a name="~QNPWidget"></a>QNPWidget::~QNPWidget ()
</h3>
Destroys the window. This will be called by the plugin binding
code when the window is no longer required. The web browser will
delete windows when they leave the page. The bindings will change
the <a href="qwidget.html#winId">QWidget::winId</a>() of the window when the window is resized, but
this should not affect normal widget behavior.

<h3 class=fn>void <a name="enterInstance"></a>QNPWidget::enterInstance ()<tt> [virtual]</tt>
</h3>
Called when the mouse enters the plugin window. Does nothing by
default.

<p>Example: <a href="grapher-nsplugin-example.html#x2753">grapher/grapher.cpp</a>.
<h3 class=fn><a href="qnpinstance.html">QNPInstance</a>&nbsp;* <a name="instance"></a>QNPWidget::instance ()
</h3>
Returns the instance for which this widget is the plugin window.

<h3 class=fn>void <a name="leaveInstance"></a>QNPWidget::leaveInstance ()<tt> [virtual]</tt>
</h3>
Called when the mouse leaves the plugin window. Does nothing by
default.

<p>Example: <a href="grapher-nsplugin-example.html#x2754">grapher/grapher.cpp</a>.
<!-- eof -->
<hr><p>
This file is part of the <a href="index.html">Qt toolkit</a>.
Copyright &copy; 1995-2007
<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
<table width=100% cellspacing=0 border=0><tr>
<td>Copyright &copy; 2007
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
<td align=right><div align=right>Qt 3.3.8</div>
</table></div></address></body>
</html>