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collection support for XTI

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@22807 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Stefan Csomor
2003-08-13 16:59:46 +00:00
parent 8143581bdc
commit ab6e491366
4 changed files with 601 additions and 245 deletions
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137
include/wx/xtistrm.h
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@@ -35,23 +35,43 @@ const int wxNullObjectID = -1 ;
Main interfaces for streaming out objects.
*/
// ----------------------------------------------------------------------------
// wxPersister
//
// This class will be asked during the streaming-out process about every single
// property or object instance. It can veto streaming out by returning false
// or modify the value before it is streamed-out.
// ----------------------------------------------------------------------------
class wxWriter ;
class wxReader ;
class wxPersister
{
public :
// will be called before a toplevel object is written, may veto even that (eg for objects that cannot be supported) by returning false
virtual bool BeforeWriteObject( const wxObject *WXUNUSED(object) , const wxClassInfo *WXUNUSED(classInfo) , const wxString &WXUNUSED(name)) { return true ; }
// will be called before an object is written, may veto by returning false
virtual bool BeforeWriteObject( wxWriter *WXUNUSED(writer) , const wxObject *WXUNUSED(object) , const wxClassInfo *WXUNUSED(classInfo) ) { return true ; }
// will be called after this object has been written, may be needed for adjusting stacks
virtual void AfterWriteObject( wxWriter *WXUNUSED(writer) , const wxObject *WXUNUSED(object) , const wxClassInfo *WXUNUSED(classInfo) ) {}
// will be called before a property gets written, may change the value , eg replace a concrete wxSize by wxSize( -1 , -1 ) or veto
// writing that property at all by returning false
virtual bool BeforeWriteProperty( const wxObject *WXUNUSED(object) , const wxClassInfo *WXUNUSED(classInfo) , const wxPropertyInfo *WXUNUSED(propInfo) , wxxVariant &WXUNUSED(value) ) { return true ; }
virtual bool BeforeWriteProperty( wxWriter *WXUNUSED(writer) , const wxPropertyInfo *WXUNUSED(propInfo) , wxxVariant &WXUNUSED(value) ) { return true ; }
// will be called before a property with an object value gets written, may change the value , eg replace the instance, void it or veto
// will be called before a property gets written, may change the value , eg replace a concrete wxSize by wxSize( -1 , -1 ) or veto
// writing that property at all by returning false
virtual bool BeforeWritePropertyAsObject( const wxObject *WXUNUSED(object) , const wxClassInfo *WXUNUSED(classInfo) , const wxPropertyInfo *WXUNUSED(propInfo) , wxxVariant &WXUNUSED(value) ) { return true ; }
virtual bool BeforeWriteProperty( wxWriter *WXUNUSED(writer) , const wxPropertyInfo *WXUNUSED(propInfo) , wxxVariantArray &WXUNUSED(value) ) { return true ; }
// will be called before a delegate property gets written, you may change all informations about the event sink
virtual bool BeforeWriteDelegate( const wxObject *WXUNUSED(object), const wxClassInfo* WXUNUSED(classInfo) , const wxPropertyInfo *WXUNUSED(propInfo) ,
const wxObject *&WXUNUSED(eventSink) , const wxHandlerInfo* &WXUNUSED(handlerInfo) ) { return true ; }
// will be called after a property has been written out, may be needed for adjusting stacks
virtual void AfterWriteProperty( wxWriter *WXUNUSED(writer) , const wxPropertyInfo *WXUNUSED(propInfo) ) {}
// will be called before this delegate gets written
virtual bool BeforeWriteDelegate( wxWriter *WXUNUSED(writer) , const wxObject *WXUNUSED(object), const wxClassInfo* WXUNUSED(classInfo) , const wxPropertyInfo *WXUNUSED(propInfo) ,
const wxObject *&WXUNUSED(eventSink) , const wxHandlerInfo* &WXUNUSED(handlerInfo) ) { return true ; }
virtual void AfterWriteDelegate( wxWriter *WXUNUSED(writer) , const wxObject *WXUNUSED(object), const wxClassInfo* WXUNUSED(classInfo) , const wxPropertyInfo *WXUNUSED(propInfo) ,
const wxObject *&WXUNUSED(eventSink) , const wxHandlerInfo* &WXUNUSED(handlerInfo) ) { }
} ;
class wxWriter : public wxObject
@@ -63,36 +83,53 @@ public :
// with this call you start writing out a new top-level object
void WriteObject(const wxObject *object, const wxClassInfo *classInfo , wxPersister *persister , const wxString &name ) ;
int GetObjectID(const wxObject *obj) ;
bool IsObjectKnown( const wxObject *obj ) ;
//
// Managing the object identity table a.k.a context
//
// these methods make sure that no object gets written twice, because sometimes multiple calls to the WriteObject will be
// made without wanting to have duplicate objects written, the object identity table will be reset manually
virtual void ClearObjectContext() ;
// gets the object Id for a passed in object in the context
int GetObjectID(const wxObject *obj) ;
// returns true if this object has already been written in this context
bool IsObjectKnown( const wxObject *obj ) ;
//
// streaming callbacks
//
// these callbacks really write out the values in the stream format
//
// start of writing an toplevel object name param is used for unique identification within the container
virtual void DoBeginWriteObject(const wxObject *object, const wxClassInfo *classInfo, int objectID , const wxString &name ) = 0 ;
// begins writing out a new toplevel entry which has the indicated unique name
virtual void DoBeginWriteTopLevelEntry( const wxString &name ) = 0 ;
// ends writing out a new toplevel entry which has the indicated unique name
virtual void DoEndWriteTopLevelEntry( const wxString &name ) = 0 ;
// start of writing an object having the passed in ID
virtual void DoBeginWriteObject(const wxObject *object, const wxClassInfo *classInfo, int objectID ) = 0 ;
// end of writing an toplevel object name param is used for unique identification within the container
virtual void DoEndWriteObject(const wxObject *object, const wxClassInfo *classInfo, int objectID , const wxString &name ) = 0 ;
virtual void DoEndWriteObject(const wxObject *object, const wxClassInfo *classInfo, int objectID ) = 0 ;
// start of writing an object used as param
virtual void DoBeginWriteParamAsObject(const wxObject *parentObject, const wxClassInfo *parentClassInfo, const wxObject *valueObject,
const wxClassInfo *valueObjectClassInfo, int valueObjectID , const wxPropertyInfo *propInfo ) = 0 ;
// writes a simple property in the stream format
virtual void DoWriteSimpleType( wxxVariant &value ) = 0 ;
// end of writing an object used as param
virtual void DoEndWriteParamAsObject(const wxObject *parentObject, const wxClassInfo *parentClassInfo, const wxObject *valueObject,
const wxClassInfo *valueObjectClassInfo, int valueObjectID , const wxPropertyInfo *propInfo ) = 0 ;
// start of writing a complex property into the stream (
virtual void DoBeginWriteProperty( const wxPropertyInfo *propInfo ) = 0 ;
// insert an object reference to an already written object
virtual void DoWriteObjectReference(const wxObject *parentObject, const wxClassInfo *parentClassInfo, const wxObject *valueObject,
const wxClassInfo *valueObjectClassInfo, int valueObjectID , const wxPropertyInfo *propInfo ) = 0 ;
// end of writing a complex property into the stream
virtual void DoEndWriteProperty( const wxPropertyInfo *propInfo ) = 0;
// writes a property in the stream format
virtual void DoWriteProperty( const wxObject *object, const wxClassInfo* classInfo , const wxPropertyInfo *propInfo , wxxVariant &value ) = 0 ;
virtual void DoBeginWriteElement() = 0 ;
virtual void DoEndWriteElement() = 0 ;
// insert an object reference to an already written object
virtual void DoWriteRepeatedObject( int objectID ) = 0 ;
// insert a null reference
virtual void DoWriteNullObject() = 0 ;
// writes a delegate in the stream format
virtual void DoWriteDelegate( const wxObject *object, const wxClassInfo* classInfo , const wxPropertyInfo *propInfo ,
@@ -105,6 +142,8 @@ private :
struct wxWriterInternalPropertiesData ;
void WriteAllProperties( const wxObject * obj , const wxClassInfo* ci , wxPersister *persister, wxWriterInternalPropertiesData * data ) ;
void WriteObject(const wxObject *object, const wxClassInfo *classInfo , wxPersister *persister , bool isEmbedded) ;
void FindConnectEntry(const wxWindow * evSource,const wxDelegateTypeInfo* dti, const wxObject* &sink , const wxHandlerInfo *&handler) ;
} ;
class wxXmlWriter : public wxWriter
@@ -120,30 +159,44 @@ public :
// these callbacks really write out the values in the stream format
//
// start of writing an toplevel object name param is used for unique identification within the container
virtual void DoBeginWriteObject(const wxObject *object, const wxClassInfo *classInfo, int objectID , const wxString &name ) ;
//
// streaming callbacks
//
// these callbacks really write out the values in the stream format
// begins writing out a new toplevel entry which has the indicated unique name
virtual void DoBeginWriteTopLevelEntry( const wxString &name ) ;
// ends writing out a new toplevel entry which has the indicated unique name
virtual void DoEndWriteTopLevelEntry( const wxString &name ) ;
// start of writing an object having the passed in ID
virtual void DoBeginWriteObject(const wxObject *object, const wxClassInfo *classInfo, int objectID ) ;
// end of writing an toplevel object name param is used for unique identification within the container
virtual void DoEndWriteObject(const wxObject *object, const wxClassInfo *classInfo, int objectID , const wxString &name ) ;
virtual void DoEndWriteObject(const wxObject *object, const wxClassInfo *classInfo, int objectID ) ;
// start of writing an object used as param
virtual void DoBeginWriteParamAsObject(const wxObject *parentObject, const wxClassInfo *parentClassInfo, const wxObject *valueObject,
const wxClassInfo *valueObjectClassInfo, int valueObjectID , const wxPropertyInfo *propInfo ) ;
// writes a simple property in the stream format
virtual void DoWriteSimpleType( wxxVariant &value ) ;
// end of writing an object used as param
virtual void DoEndWriteParamAsObject(const wxObject *parentObject, const wxClassInfo *parentClassInfo, const wxObject *valueObject,
const wxClassInfo *valueObjectClassInfo, int valueObjectID , const wxPropertyInfo *propInfo ) ;
// start of writing a complex property into the stream (
virtual void DoBeginWriteProperty( const wxPropertyInfo *propInfo ) ;
// insert an object reference to an already written object or to a null object
virtual void DoWriteObjectReference(const wxObject *parentObject, const wxClassInfo *parentClassInfo, const wxObject *valueObject,
const wxClassInfo *valueObjectClassInfo, int valueObjectID , const wxPropertyInfo *propInfo ) ;
// end of writing a complex property into the stream
virtual void DoEndWriteProperty( const wxPropertyInfo *propInfo ) ;
// writes a property in the stream format
virtual void DoWriteProperty( const wxObject *object, const wxClassInfo* classInfo , const wxPropertyInfo *propInfo , wxxVariant &value ) ;
virtual void DoBeginWriteElement() ;
virtual void DoEndWriteElement() ;
// insert an object reference to an already written object
virtual void DoWriteRepeatedObject( int objectID ) ;
// insert a null reference
virtual void DoWriteNullObject() ;
// writes a delegate in the stream format
virtual void DoWriteDelegate( const wxObject *object, const wxClassInfo* classInfo , const wxPropertyInfo *propInfo ,
const wxObject *eventSink, int sinkObjectID , const wxClassInfo* eventSinkClassInfo , const wxHandlerInfo* handlerInfo ) ;
const wxObject *eventSink , int sinkObjectID , const wxClassInfo* eventSinkClassInfo , const wxHandlerInfo* handlerIndo ) ;
private :
struct wxXmlWriterInternal ;
wxXmlWriterInternal* m_data ;
@@ -174,7 +227,7 @@ public :
// Reads the component the reader is pointed at from the underlying format.
// The return value is the root object ID, which can
// then be used to ask the depersister about that object
virtual int ReadObject( wxDepersister *depersist ) = 0 ;
virtual int ReadObject( const wxString &name , wxDepersister *depersist ) = 0 ;
private :
struct wxReaderInternal;
@@ -194,7 +247,7 @@ public:
// Reads a component from XML. The return value is the root object ID, which can
// then be used to ask the depersister about that object
int ReadObject(wxDepersister *callbacks);
virtual int ReadObject( const wxString &name , wxDepersister *depersist ) ;
private :
int ReadComponent(wxXmlNode *parent, wxDepersister *callbacks);