Base object template list class for list item classes derived from BaseItem. More...

#include <mlListBase.h>

Inheritance diagram for ml::BaseListTemplate< T >:

Public Member Functions
BaseListTemplate< T > &	operator= (const BaseListTemplate &other)=default
	explicitly create default assignment operator

BaseItem *	getItemAt (MLssize_t index) override
	This virtual function is reimplemented from ListBase, where it returns 0 in any case (also in ListTemplate<T>, because the items are not necessarily BaseItems there).

const BaseItem *	getConstItemAt (MLssize_t index) const override
	Same as getItemAt(MLssize_t index) for constant access.

void	insertItemAt (MLssize_t index, const BaseItem *item) override
	This virtual function is reimplemented from ListBase, where it does nothing at all.

void	modifyItemAt (MLssize_t index, const BaseItem *item) override
	This virtual function is reimplemented from ListBase, where it does nothing at all.

void	deleteItemAt (MLssize_t index) override
	This virtual function is reimplemented from ListBase, where it does nothing at all.

void	selectItemAt (MLssize_t index) override
	This virtual function is reimplemented from ListBase, where it does nothing at all.

const RuntimeType *	getItemTypeId () const override
	This virtual function is reimplemented from ListBase, where it returns 0 in any case (also in ListTemplate<T>, because the items are not necessarily BaseItems there).

void	clearList () override
	Clear complete list.

Constructors
	BaseListTemplate ()
	Standard constructor, disables persistence.

	BaseListTemplate (bool persistance)
	Special constructor to explicitly enable/disable persistence.

	BaseListTemplate (const BaseListTemplate &other)

Next-id support
virtual MLssize_t	newId ()
	Get new unused id.

virtual void	usedId (MLssize_t id)
	Notify list that id is used.

virtual void	resetId ()
	Reset next id.

List modification methods
These methods combine list modifications (via the STL vector interface) with the corresponding updates of the last action properties. They are provided for convenience when only a single modification is performed and the field to which the list might be connected is touched directly after this modification. Do not use these methods if several modifications are performed before the list field is touched.
virtual void	doDeleteItem (MLssize_t index)
	Delete single item at position index and set the corresponding ActDelete action.

virtual void	doInsertItem (MLssize_t index, const T &item)
	Insert item at position index, assign a new id value to the inserted item and set the corresponding ActInsert action.

virtual void	doModifyItem (MLssize_t index, const T &item)
	Store item at position index and set the corresponding ActModify action.

virtual void	doSelectItem (MLssize_t index)
	Select item at position index, or deselect if item == -1, and set the corresponding ActSelect action.

virtual void	appendItem (const T &item)
	Appends an item to the list.

void	addStateToTree (TreeNode *parent) const override
	Attaches the object state as children of the given parent node.

	ML_SET_ADDSTATE_VERSION (1)
	Set addState version number.

void	readStateFromTree (TreeNode *parent) override
	Reads the object state from the children of the given parent node.

Public Member Functions inherited from ml::ListTemplate< T >
	ListTemplate ()
	Standard constructor, disables persistence.

	ListTemplate (bool persistance)
	Special constructor to explicitly enable/disable persistence.

	ListTemplate (const ListTemplate &other)

size_t	getSize () const override
	Get number of list elements.

void	clearList () override
	Clear complete list.

ListTemplate< T > &	operator= (const ListTemplate< T > &list)
	Assignment operator.

ListTemplate< T > *	clone () const override
	Create a copy of (*this) using the ML runtime system and the '='-operator.

ListTemplate< T > *	deepCopy () const override
	Create a deep copy of the list.

std::string	persistentState () const override
	Returns a string describing the object's internal state.

void	setPersistentState (const std::string &state) override
	Initialize the list object from the string state.

void	addStateToTree (TreeNode *parent) const override
	Attaches the state as children of the given parent node.

	ML_SET_ADDSTATE_VERSION (2)
	Set addState version number, version 2 indicates data saved by a 64 bit version.

void	readStateFromTree (TreeNode *parent) override
	Reads the object state from the children of the given parent node.

Public Member Functions inherited from ml::ListBase
	ListBase (bool persistance)
	Constructor. Derived class should indicate whether persistence is implemented.

	ListBase (const ListBase &other)

virtual void	setAction (ActionClass actionClass, MLssize_t id, MLssize_t index)
	Set actionClass, affected item id and index.

virtual void	setAction (ActionClass actionClass)
	Set actionClass for actions affecting the whole list.

virtual void	getAction (ActionClass &actionClass, MLssize_t &id, MLssize_t &index) const
	Get actionClass, affected item id and index.

virtual ActionClass	getActionClass () const
	Get actionClass of last action.

virtual MLssize_t	getActionId () const
	Get id of item affected by last action.

virtual MLssize_t	getActionIndex () const
	Get index of item affected by last action.

virtual MLssize_t	getCurrentIndex () const
	Get index of currently selected item, or -1 if no item selected.

virtual bool	isModified () const
	Tests, if the last action has been an action that has modified the content of the list.

virtual bool	hasPersistance () const
	Test if persistence is available and enabled.

virtual void	setPersistance (bool persistance)
	Enable/disable persistence functionality.

	ML_SET_ADDSTATE_VERSION (0)
	Set addState version number.

Public Member Functions inherited from ml::Base
	Base ()
	Constructor.

virtual	~Base ()
	Destructor.

bool	isOfAllowedType (const std::vector< const RuntimeType * > &types) const
	Check if this object's type is equal to or derived from one of the types given in the argument.

virtual bool	isRefCountedBase () const
	Returns if the instance is derived from RefCountedBase.

virtual std::string	detailString () const
	Return a string describing this object.

virtual bool	implementsPersistence (PersistenceInterface) const
	Override this method to declare which persistence interfaces are implemented by your derived class.

virtual void	writeTo (AbstractPersistenceOutputStream *) const
	Write the objects state to the data stream object.

virtual void	readFrom (AbstractPersistenceInputStream *, int)
	Read the objects state from the data stream object.

List item persistence
List persistence is directly based on the persistence methods of the list item class. Hence, the following methods are mapped to the item class persistence methods. Return a string representation of the item object.
std::string	itemState (typename ListTemplate< T >::const_iterator it) const override
	Return a string representation of the item object.

void	setItemState (typename ListTemplate< T >::iterator it, const std::string &state) override
	Initialize the item object from the string state.

Additional Inherited Members
Public Types inherited from ml::ListTemplate< T >
typedef T	itemType
	Declare type name for item type (this allows declarations like: ObjectList::itemType obj)

Public Types inherited from ml::ListBase
enum	ActionClass { ActNone = 0 , ActUnknown , ActNew , ActSelect , ActModify , ActDelete , ActInsert , ActInsertOvw , ActNumActions }
	Constants to describe the type of action most recently performed. More...

Public Types inherited from ml::Base
enum	PersistenceInterface { PersistenceByString , PersistenceByTreeNode , PersistenceByStream }
	This enum describes the different persistence interfaces available. More...

Static Public Attributes inherited from ml::ListBase
static const char *const	ActionClassNames [ActNumActions]
	Action class name constants.

List item persistence
To implement persistence, overload getItemState() and setItemState(). Make sure that the string returned by getItemState() can be disposed by clearItemState(), or otherwise overload clearItemState() appropriately. The item's string representation may contain any character, including those used in the list string syntax: [],". The list persistence methods take care of quoting the item strings if necessary.
Protected Member Functions inherited from ml::ListBase
char *	newString (const std::string &str) const
	Convenience method to create a copy of the string str allocated on the heap.

void	deleteString (char *str) const
	Dispose a string allocated with newString()

ListBase &	operator= (const ListBase &list)
	Assignment operator, used in derived list classes.

Detailed Description

template<class T>
class ml::BaseListTemplate< T >

Base object template list class for list item classes derived from BaseItem.

List class template (derived from ListTemplate) for list item classes derived from BaseItem. Persistence of the list is based on the corresponding methods of the list class. The list maintains a 'next id' feature to support unique item id's.

To implement an instance of BaseListTemplate with a given type T (where T must be a subclass of BaseItem), the following steps are necessary:

Derive a subclass from the template instance class BaseListTemplate<T>
Use the ML_CLASS_HEADER and ML_CLASS_SOURCE macros to implement the runtime type system for this class. In the ML_CLASS_SOURCE macro, use ListBase in the base class argument.
If persistence is desired for the new class, make sure to initialize the base class with BaseListTemplate<T>(true) in the constructor of the new class. This requires that the persistence methods are properly defined for the item class T.
IMPORTANT: Make sure that the item class T has proper copy constructor and assignment operator (these are used by the STL).

Definition at line 653 of file mlListBase.h.

Constructor & Destructor Documentation

◆ BaseListTemplate() [1/3]

template<class T >

ml::BaseListTemplate< T >::BaseListTemplate ( )

inline

Standard constructor, disables persistence.

Definition at line 661 of file mlListBase.h.

◆ BaseListTemplate() [2/3]

template<class T >

ml::BaseListTemplate< T >::BaseListTemplate ( bool persistance )

inline

Special constructor to explicitly enable/disable persistence.

Definition at line 664 of file mlListBase.h.

◆ BaseListTemplate() [3/3]

template<class T >

ml::BaseListTemplate< T >::BaseListTemplate ( const BaseListTemplate< T > & other )

inline

Definition at line 666 of file mlListBase.h.

Member Function Documentation

◆ addStateToTree()

template<class T >

void ml::BaseListTemplate< T >::addStateToTree ( TreeNode * parent ) const

overridevirtual

Attaches the object state as children of the given parent node.

BE SURE TO INCREASE THE VERSION NUMBER IN THE DECLARATION AND ADAPT readStateFromTree() TO THE NEW VERSION WHILE KEEPING IT DOWNWARD- COMPATIBLE!

Reimplemented from ml::Base.

Definition at line 921 of file mlListBase.h.

References ml::TreeNode::addChild(), ML_ADDSTATE_SUPER, ML_ADDSTATE_VERSION, and mlrange_cast().

◆ appendItem()

template<class T >

void ml::BaseListTemplate< T >::appendItem ( const T & item )

virtual

Appends an item to the list.

Equivalent to list.doInsertItem(list->getSize(), item);

Definition at line 878 of file mlListBase.h.

References mlrange_cast().

◆ clearList()

template<class T >

void ml::BaseListTemplate< T >::clearList ( )

inlineoverridevirtual

Clear complete list.

Reimplemented from ml::ListBase.

Definition at line 758 of file mlListBase.h.

◆ deleteItemAt()

template<class T >

void ml::BaseListTemplate< T >::deleteItemAt ( MLssize_t index )

inlineoverridevirtual

This virtual function is reimplemented from ListBase, where it does nothing at all.

(also in ListTemplate<T>, because the items are not necessarily BaseItems there).

Here, the index is simply relayed to doDeleteItem.

Reimplemented from ml::ListBase.

Definition at line 712 of file mlListBase.h.

◆ doDeleteItem()

template<class T >

void ml::BaseListTemplate< T >::doDeleteItem ( MLssize_t index )

virtual

Delete single item at position index and set the corresponding ActDelete action.

Definition at line 849 of file mlListBase.h.

References mlrange_cast().

◆ doInsertItem()

template<class T >

void ml::BaseListTemplate< T >::doInsertItem	(	MLssize_t	index,
		const T &	item )

virtual

Insert item at position index, assign a new id value to the inserted item and set the corresponding ActInsert action.

Definition at line 862 of file mlListBase.h.

References mlrange_cast().

◆ doModifyItem()

template<class T >

void ml::BaseListTemplate< T >::doModifyItem	(	MLssize_t	index,
		const T &	item )

virtual

Store item at position index and set the corresponding ActModify action.

The id value of the modified item is left unchanged.

Definition at line 887 of file mlListBase.h.

References mlrange_cast().

◆ doSelectItem()

template<class T >

void ml::BaseListTemplate< T >::doSelectItem ( MLssize_t index )

virtual

Select item at position index, or deselect if item == -1, and set the corresponding ActSelect action.

Select item at position index, or deselect if index == -1, and set the corresponding ActSelect action.

Definition at line 903 of file mlListBase.h.

References mlrange_cast().

◆ getConstItemAt()

template<class T >

const BaseItem * ml::BaseListTemplate< T >::getConstItemAt ( MLssize_t index ) const

inlineoverridevirtual

Same as getItemAt(MLssize_t index) for constant access.

Reimplemented from ml::ListBase.

Definition at line 683 of file mlListBase.h.

References mlrange_cast().

◆ getItemAt()

template<class T >

BaseItem * ml::BaseListTemplate< T >::getItemAt ( MLssize_t index )

inlineoverridevirtual

This virtual function is reimplemented from ListBase, where it returns 0 in any case (also in ListTemplate<T>, because the items are not necessarily BaseItems there).

Here, the item at the given index is returned. Note that no range checking is done for performance reasons.

Reimplemented from ml::ListBase.

Definition at line 678 of file mlListBase.h.

References mlrange_cast().

◆ getItemTypeId()

template<class T >

const RuntimeType * ml::BaseListTemplate< T >::getItemTypeId ( ) const

inlineoverridevirtual

This virtual function is reimplemented from ListBase, where it returns 0 in any case (also in ListTemplate<T>, because the items are not necessarily BaseItems there).

Reimplemented from ml::ListBase.

Definition at line 727 of file mlListBase.h.

◆ insertItemAt()

template<class T >

void ml::BaseListTemplate< T >::insertItemAt	(	MLssize_t	index,
		const BaseItem *	item )

inlineoverridevirtual

This virtual function is reimplemented from ListBase, where it does nothing at all.

(also in ListTemplate<T>, because the items are not necessarily BaseItems there).

Here, the item is inserted at the given index, as long as it is of type T.

Reimplemented from ml::ListBase.

Definition at line 691 of file mlListBase.h.

References mlrange_cast(), and T.

◆ itemState()

template<class T >

std::string ml::BaseListTemplate< T >::itemState ( typename ListTemplate< T >::const_iterator it ) const

inlineoverrideprotectedvirtual

Return a string representation of the item object.

The string is allocated on the heap and is later disposed by clearItemState().

Reimplemented from ml::ListTemplate< T >.

Definition at line 821 of file mlListBase.h.

References mlrange_cast().

◆ ML_SET_ADDSTATE_VERSION()

template<class T >

ml::BaseListTemplate< T >::ML_SET_ADDSTATE_VERSION ( 1 )

Set addState version number.

Version History: 0 : adding size and items only 1 : also adding ListBase members (hasPersistence, currentItem);

◆ modifyItemAt()

template<class T >

void ml::BaseListTemplate< T >::modifyItemAt	(	MLssize_t	index,
		const BaseItem *	item )

inlineoverridevirtual

This virtual function is reimplemented from ListBase, where it does nothing at all.

(also in ListTemplate<T>, because the items are not necessarily BaseItems there).

Here, the item is inserted at the given index, as long as it is of type T.

Reimplemented from ml::ListBase.

Definition at line 702 of file mlListBase.h.

References mlrange_cast(), and T.

◆ newId()

template<class T >

virtual MLssize_t ml::BaseListTemplate< T >::newId ( )

inlinevirtual

Get new unused id.

Definition at line 736 of file mlListBase.h.

◆ operator=()

template<class T >

BaseListTemplate< T > & ml::BaseListTemplate< T >::operator= ( const BaseListTemplate< T > & other )

default

explicitly create default assignment operator

◆ readStateFromTree()

template<class T >

void ml::BaseListTemplate< T >::readStateFromTree ( TreeNode * parent )

overridevirtual

Reads the object state from the children of the given parent node.

Reimplemented from ml::Base.

Definition at line 946 of file mlListBase.h.

References ML_READCHILD_OPTIONAL, ML_READSTATE_SUPER, mlrange_cast(), T, and ml::TNE_UnsupportedClassVersion.

◆ resetId()

template<class T >

virtual void ml::BaseListTemplate< T >::resetId ( )

inlinevirtual

Reset next id.

Definition at line 747 of file mlListBase.h.

References mlrange_cast().

◆ selectItemAt()

template<class T >

void ml::BaseListTemplate< T >::selectItemAt ( MLssize_t index )

inlineoverridevirtual

This virtual function is reimplemented from ListBase, where it does nothing at all.

(also in ListTemplate<T>, because the items are not necessarily BaseItems there).

Here, the index is simply relayed to doSelectItem.

Reimplemented from ml::ListBase.

Definition at line 720 of file mlListBase.h.

◆ setItemState()

template<class T >

void ml::BaseListTemplate< T >::setItemState	(	typename ListTemplate< T >::iterator	it,
		const std::string &	state )

inlineoverrideprotectedvirtual

Initialize the item object from the string state.

Reimplemented from ml::ListTemplate< T >.

Definition at line 827 of file mlListBase.h.

References mlrange_cast().

◆ usedId()

template<class T >

virtual void ml::BaseListTemplate< T >::usedId ( MLssize_t id )

inlinevirtual

Notify list that id is used.

Definition at line 739 of file mlListBase.h.

The documentation for this class was generated from the following file:

MeVisLab/Standard/Sources/ML/MLBase/mlListBase.h

Public Member Functions

List item persistence

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ BaseListTemplate() [1/3]

◆ BaseListTemplate() [2/3]

◆ BaseListTemplate() [3/3]

Member Function Documentation

◆ addStateToTree()

◆ appendItem()

◆ clearList()

◆ deleteItemAt()

◆ doDeleteItem()

◆ doInsertItem()

◆ doModifyItem()

◆ doSelectItem()

◆ getConstItemAt()

◆ getItemAt()

◆ getItemTypeId()

◆ insertItemAt()

◆ itemState()

◆ ML_SET_ADDSTATE_VERSION()

◆ modifyItemAt()

◆ newId()

◆ operator=()

◆ readStateFromTree()

◆ resetId()

◆ selectItemAt()

◆ setItemState()

◆ usedId()