Declaration of plugin class
Now that we have the preliminary work done, let us get into the actual fun part - creating a class that will provide the behavior we want. While we are free to make this class do almost anything we want it to do, there are a few restrictions.
Plugin classes must inherit the ThemeEngine
class.
Plugin classes must be named according to the rule:
Theme+PluginName.
Plugin classes should provide a static
function called names
that returns a list of names by which it can be invoked.
If the plugin can be configured in the control center module, it
should provide a
ThemeEngineConfig-based class for the
configuration.
Plugin classes must override at least one of the virtual
functions slotSetText,
slotSetPixmap, slotUpdateProgress and
slotUpdateSteps to make it usable.
The constructor should take the form
ThemeEngine( QWidget *parent, const char *name, const QStringList
&args )
so that it can be used with
KGenericFactory.
The last requirement may seem complicated, but, as we will see later, by adding a single line to your source files, you can usually ignore it.
