Detailed Description
This class is defined in the Qt Netscape Extension, which can be found in the qt/extensions directory. It is not included in the main Qt API.
The QNPWidget class provides a QWidget that is a Web-browser plugin window.
Derive from QNPWidget to create a widget that can be used as a
Browser plugin window, or create one and add child widgets.
Instances of QNPWidget may only be created when
QNPInstance::newWindow() is called by the browser.
A common way to develop a plugin widget is to develop it as a
stand-alone application window, then make it a child of a
plugin widget to use it as a browser plugin. The technique is:
class MyPluginWindow : public QNPWidget
{
QWidget* 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->setBackgroundColor( backgroundColor() );
// Fill the plugin widget
child->setGeometry( 0, 0, width(), height() );
}
void resizeEvent(QResizeEvent*)
{
// Fill the plugin widget
child->resize(size());
}
};
The default implementation is an empty window.
Member Function Documentation
QNPWidget::QNPWidget ()
Creates a QNPWidget.
QNPWidget::~QNPWidget ()
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 QWidget::winId() of the window when the window is resized, but
this should not affect normal widget behavior.
void QNPWidget::enterInstance () [virtual]
Called when the mouse enters the plugin window. Does nothing by
default.
Example: grapher/grapher.cpp.
QNPInstance * QNPWidget::instance ()
Returns the instance for which this widget is the window.
void QNPWidget::leaveInstance () [virtual]
Called when the mouse leaves the plugin window. Does nothing by
default.
Example: grapher/grapher.cpp.
This file is part of the Qt toolkit.
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