#include <kgenericfactory.h>
Public Member Functions | |
KGenericFactory (const char *instanceName=0) | |
KGenericFactory (const TDEAboutData *data) | |
Public Member Functions inherited from KLibFactory | |
KLibFactory (TQObject *parent=0, const char *name=0) | |
TQObject * | create (TQObject *parent=0, const char *name=0, const char *classname="TQObject", const TQStringList &args=TQStringList()) |
Protected Member Functions | |
virtual TQObject * | createObject (TQObject *parent, const char *name, const char *className, const TQStringList &args) |
Protected Member Functions inherited from KLibFactory | |
virtual void | virtual_hook (int id, void *data) |
Additional Inherited Members | |
Signals inherited from KLibFactory | |
void | objectCreated (TQObject *obj) |
Detailed Description
template<class Product, class ProductListTail>
class KGenericFactory< KTypeList< Product, ProductListTail >, TQObject >
This template provides a generic implementation of a KLibFactory , for use with shared library components.
It implements the pure virtual createObject method of KLibFactory and instantiates objects of the specified classes in the given typelist template argument when the class name argument of createObject matches a class names in the given hierarchy of classes.
Note that each class in the specified in the typelist template argument needs to provide a certain constructor:
-
If the class is derived from TQObject then it needs to have a constructor like:
MyClass( TQObject *parent, const char *name, const TQStringList &args );
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If the class is derived from TQWidget then it needs to have a constructor like:
MyWidget( TQWidget *parent, const char *name, const TQStringList &args);
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If the class is derived from KParts::Part then it needs to have a constructor like:
MyPart( TQWidget *parentWidget, const char *widgetName, TQObject *parent, const char *name, const TQStringList &args );
The args TQStringList passed to the constructor is the args string list that the caller passed to KLibFactory's create method.
In addition upon instantiation this template provides a central TDEInstance object for your component, accessible through the static instance() method. The instanceName argument of the KGenericFactory constructor is passed to the TDEInstance object.
The creation of the TDEInstance object can be customized by inheriting from this template class and re-implementing the virtual createInstance method. For example it could look like this:
Example of usage of the whole template:
Definition at line 266 of file kgenericfactory.h.
Constructor & Destructor Documentation
◆ KGenericFactory()
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inline |
- Since
- 3.3
Definition at line 278 of file kgenericfactory.h.
Member Function Documentation
◆ createObject()
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inlineprotectedvirtual |
Creates a new object.
The returned object has to be derived from the requested classname.
It is valid behavior to create different kinds of objects depending on the requested className
. For example a koffice library may usually return a pointer to KoDocument. But if asked for a "TQWidget", it could create a wrapper widget, that encapsulates the Koffice specific features.
This function is called by create()
- Parameters
-
parent the parent of the TQObject, 0 for no parent name the name of the TQObject, 0 for no name className the name of the class args a list of arguments
Implements KLibFactory.
Definition at line 284 of file kgenericfactory.h.
The documentation for this class was generated from the following file: