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gcu::Object Class Reference

#include <gcu/object.h>

Inheritance diagram for gcu::Object:

gcu::Atom gcu::Bond gcu::Document gcu::CrystalAtom List of all members.

Public Member Functions

 Object (TypeId Id=OtherType)
virtual ~Object ()
TypeId GetType ()
void SetId (gchar *Id)
const gchar * GetId ()
void AddChild (Object *object)
ObjectGetMolecule ()
ObjectGetReaction ()
ObjectGetGroup ()
DocumentGetDocument ()
ObjectGetParentOfType (TypeId Id)
ObjectGetChild (const gchar *Id)
ObjectGetFirstChild (map< string, Object * >::iterator &i)
ObjectGetNextChild (map< string, Object * >::iterator &i)
ObjectGetDescendant (const gchar *Id)
ObjectGetParent ()
void SetParent (Object *Parent)
virtual xmlNodePtr Save (xmlDocPtr xml)
virtual bool Load (xmlNodePtr node)
virtual void Move (double x, double y, double z=0.)
virtual void Transform2D (Matrix2D &m, double x, double y)
bool SaveChildren (xmlDocPtr xml, xmlNodePtr node)
void SaveId (xmlNodePtr node)
xmlNodePtr GetNodeByProp (xmlNodePtr node, char *Property, char *Id)
xmlNodePtr GetNextNodeByProp (xmlNodePtr node, char *Property, char *Id)
xmlNodePtr GetNodeByName (xmlNodePtr node, char *Name)
xmlNodePtr GetNextNodeByName (xmlNodePtr node, char *Name)
virtual void Add (GtkWidget *w)
virtual void Print (GnomePrintContext *pc)
virtual void Update (GtkWidget *w)
virtual void SetSelected (GtkWidget *w, int state)
bool HasChildren ()
unsigned GetChildrenNumber ()
virtual ObjectGetAtomAt (double x, double y, double z=0.)
virtual bool Build (list< Object * > &Children) throw (invalid_argument)
virtual double GetYAlign ()
virtual bool BuildContextualMenu (GtkUIManager *UIManager, Object *object)
void EmitSignal (SignalId Signal)
virtual bool OnSignal (SignalId Signal, Object *Child)
void Lock (bool state=true)
bool IsLocked ()
ObjectGetFirstLink (set< Object * >::iterator &i)
ObjectGetNextLink (set< Object * >::iterator &i)
void Unlink (Object *object)
virtual void OnUnlink (Object *object)
void GetPossibleAncestorTypes (set< TypeId > &types)

Static Public Member Functions

static TypeId AddType (string TypeName, Object *(*CreateFunc)(), TypeId id=OtherType)
static ObjectCreateObject (const string &TypeName, Object *parent=NULL)
static TypeId GetTypeId (const string &Name)
static string GetTypeName (TypeId Id)
static void AddRule (TypeId type1, RuleId rule, TypeId type2)
static void AddRule (const string &type1, RuleId rule, const string &type2)
static const set< TypeId > & GetRules (TypeId type, RuleId rule)
static const set< TypeId > & GetRules (const string &type, RuleId rule)
static void SetCreationLabel (TypeId Id, string Label)
static const string & GetCreationLabel (TypeId Id)
static const string & GetCreationLabel (const string &TypeName)
static SignalId CreateNewSignalId ()

Detailed Description

This is the base class for most other objects in the gcu namespace.

Definition at line 121 of file object.h.


Constructor & Destructor Documentation

gcu::Object::Object TypeId  Id = OtherType  ) 
 

Used to create an object of type Id. Shold only be called from the constructor of a derived class.

virtual gcu::Object::~Object  )  [virtual]
 

The standard destructor of Object instances. Automatically called when the object is destroyed.


Member Function Documentation

virtual void gcu::Object::Add GtkWidget *  w  )  [virtual]
 

Parameters:
w: the GtkWidget inside which the Object will be displayed.
Used to add a representation of the Object in the widget. This method might be overrided for displayable Object classes unless the application uses another mechanism.

void gcu::Object::AddChild Object object  ) 
 

Parameters:
object*: the Object instance to add as a child.
Each Object instance maintains a list of its children. If object has already a parent, it will be removed from its parent children list. The new parent Object must have a Document ancestor to ensure that Ids are unique.

static void gcu::Object::AddRule const string &  type1,
RuleId  rule,
const string &  type2
[static]
 

Parameters:
type1: the name of the first class in the rule
rule: the new rule value
type2: the name of the second class in the rule
Adds a rule.

static void gcu::Object::AddRule TypeId  type1,
RuleId  rule,
TypeId  type2
[static]
 

Parameters:
type1: the TypeId of the first class in the rule
rule: the new rule value
type2: the TypeId of the second class in the rule
Adds a rule.

static TypeId gcu::Object::AddType string  TypeName,
Object *(*)()  CreateFunc,
TypeId  id = OtherType
[static]
 

Parameters:
TypeName: the name of the new type.
CreateFunc: a pointer to a function returning a pointer to a new object of the new type.
id: the Id of the type to create if a standard one or OtherType for a new type. In this last case, this parameter can be omitted.
This method is used to register a new type derived from Object.
Returns:
the Id of the new type.

virtual bool gcu::Object::Build list< Object * > &  Children  )  throw (invalid_argument) [virtual]
 

Parameters:
Children: the list of objects used as children to build the object
This method is called to build a parent object from its children. The object must already exist.
Returns:
true in case of success and false if failed.

virtual bool gcu::Object::BuildContextualMenu GtkUIManager *  UIManager,
Object object
[virtual]
 

Parameters:
UIManager: the GtkUI%anager to populate.
object: the Object on which occured the mouse click.
This method is called to build a contextual menu for the object. It is called by Object::ShowContextualMenu, so it should not be necessary to call it directly. It should be overrided by derived classes when a contextual menu is needed. Typically, each class adds a submenu and calls the same method for its parent. Default implementation just calls the parent's method.
Returns:
true if something is added to the UIManager, false otherwise.

static SignalId gcu::Object::CreateNewSignalId  )  [static]
 

Returns:
a new SignalId.

static Object* gcu::Object::CreateObject const string &  TypeName,
Object parent = NULL
[static]
 

Parameters:
TypeName: the name of the new type.
parent: the parent of the newly created object or NULL. if NULL, the parameter can be omitted.
Used to create an object of type name TypeName. The Object::AddType method must have been called with the same TypeName parameter. if parent is given and not NULL, the new Object will be a child of parent. It will also be given a default Id.

Returns:
a pointer to the newly created Object or NULL if the Object could not be created.

void gcu::Object::EmitSignal SignalId  Signal  ) 
 

Parameters:
Signal: the appropriate SignalId
Sends a signal to the object parent. The signal may be propagated to the ancestors (see Object::OnSignal ()).

virtual Object* gcu::Object::GetAtomAt double  x,
double  y,
double  z = 0.
[virtual]
 

Parameters:
x: the x coordinate
y: the y coordinate
z: the z coordinate
Returns:
a pointer to a child of type Atomtype at or near position defined by the coordinates passed as parameters. Default implementation returns NULL.

Object* gcu::Object::GetChild const gchar *  Id  ) 
 

Parameters:
Id: the Id of the child searched.
To search the Object in lower shells of the tree, use the Object::GetDescendant method.
Returns:
the Object instance of type Id if found in the children list or NULL if not found.

unsigned gcu::Object::GetChildrenNumber  )  [inline]
 

Returns:
the children number of the Object.

Definition at line 370 of file object.h.

static const string& gcu::Object::GetCreationLabel const string &  TypeName  )  [static]
 

Parameters:
TypeName: the name of a class
Returns:
the string defined by SetCreationLabel.

static const string& gcu::Object::GetCreationLabel TypeId  Id  )  [static]
 

Parameters:
Id: the TypeId of a class
Returns:
the string defined by SetCreationLabel.

Object* gcu::Object::GetDescendant const gchar *  Id  ) 
 

Parameters:
Id: the Id of the descendant searched.
This method searches the Object in its children and if not found calls the GetDescendant method for its children.
Returns:
the Object instance of type Id if found in the decendants or NULL if not found.

Document* gcu::Object::GetDocument  ) 
 

Used to get the Document in the Object instances ancestors.

Returns:
the first Object of type DocumentType encountered when exploring the Objects tree (only one should be found) or NULL if none is found.

Object* gcu::Object::GetFirstChild map< string, Object * >::iterator &  i  ) 
 

Parameters:
i: a C++ std::map iterator.
Use this function to retrieve the first child of the object and initialize the iterator.
Returns:
the first child of the object or NULL.

Object* gcu::Object::GetFirstLink set< Object * >::iterator &  i  ) 
 

Parameters:
i: a C++ std::set<Object*> iterator.
Use this function to retrieve the first object linked to the object and initialize the iterator. Links can be used when the relation between the objects is not a parent to child one.
Returns:
the first object linked to the object or NULL.

Object* gcu::Object::GetGroup  ) 
 

Used to get the highest ancestor just before the document in the Object instances ancestors.

Returns:
the last Object of type ReactionType encountered before the document when exploring the Objects tree or NULL if the object's parent is the document itself.

const gchar* gcu::Object::GetId  )  [inline]
 

Returns:
the Id of the Object instance.

Definition at line 147 of file object.h.

Object* gcu::Object::GetMolecule  ) 
 

Used to get the Molecule in the Object instances ancestors.

Returns:
the first Object of type MoleculeType encountered when exploring the Objects tree or NULL if none is found.

Object* gcu::Object::GetNextChild map< string, Object * >::iterator &  i  ) 
 

Parameters:
i: a C++ std::map iterator initialized by Object::GetFirstChild.
Use this method to iterate through the list of the Object children.
Returns:
the next child of the object or NULL.

Object* gcu::Object::GetNextLink set< Object * >::iterator &  i  ) 
 

Parameters:
i: a C++ std::set<Object*> iterator initialized by Object::GetFirstLink.
Use this method to iterate through the list of Object instances linked to the object.
Returns:
the next object linked to the object or NULL.

xmlNodePtr gcu::Object::GetNextNodeByName xmlNodePtr  node,
char *  Name
 

Parameters:
node: the xmlNodePtr returned by Object::GetNodeByName or the last call to Object::GetNextNodeByName.
Name: the name of the xmlNode searched.
Helper method used to iterate through a list of xmlNodePtr searching for nodes whose name is Name. Generally, the iteration is initialized by a call to Object::GetNodeByName.
Returns:
the next matching node.

xmlNodePtr gcu::Object::GetNextNodeByProp xmlNodePtr  node,
char *  Property,
char *  Id
 

Parameters:
node: the xmlNodePtr returned by Object::GetNodeByProp or the last call to Object::GetNextNodeByProp.
Property: the name of the property used in the search.
Id: the value to match to the property.
Helper method used to iterate through a list of xmlNodePtr searching for a special value of a property. Generally, the iteration is initialized by a call to Object::GetNodeByProp.
Returns:
the next matching node.

xmlNodePtr gcu::Object::GetNodeByName xmlNodePtr  node,
char *  Name
 

Parameters:
node: the node where the search is to be done.
Name: the name of the xmlNode searched.
Helper method used in conjunction with Object::GetNextNodeByProp to search xmlNode instances of name Name in the children of node.

Returns:
the node corresponding to the first match. This value is to be passed to Object::GetNextNodeByName to iterate in the list.

xmlNodePtr gcu::Object::GetNodeByProp xmlNodePtr  node,
char *  Property,
char *  Id
 

Parameters:
node: the node where the search is to be done.
Property: the name of the property used in the search.
Id: the value to match to the property.
Helper method used in conjunction with Object::GetNextNodeByProp to search xmlNode instances having a property Property whose value is Id in the children of node.

Returns:
the node corresponding to the first match. This value is to be passed to Object::GetNextNodeByProp to iterate in the list

Object* gcu::Object::GetParent  )  [inline]
 

Returns:
the parent of the Object.

Definition at line 225 of file object.h.

Object* gcu::Object::GetParentOfType TypeId  Id  ) 
 

Parameters:
Id: the type of the ancestor searched.
Used to get the first ancestor of type Id in the Object instances ancestors. GetDocument, GetMolecule and GetReaction are special cases of this method.

Returns:
the first Object of type Id encountered when exploring the Objects tree (only one should be found) or NULL if none is found.

void gcu::Object::GetPossibleAncestorTypes set< TypeId > &  types  ) 
 

Parameters:
types: the list of TypeId values to fill
Fills types with all valid ancestor types for the object as defined by rules created with AddRule

Object* gcu::Object::GetReaction  ) 
 

Used to get the Reaction in the Object instances ancestors.

Returns:
the first Object of type ReactionType encountered when exploring the Objects tree or NULL if none is found.

static const set<TypeId>& gcu::Object::GetRules const string &  type,
RuleId  rule
[static]
 

Parameters:
type: the name of a class
rule: a RuleId value
Returns:
the set of rules correponding to the RuleId value for this class.

static const set<TypeId>& gcu::Object::GetRules TypeId  type,
RuleId  rule
[static]
 

Parameters:
type: the TypeId of a class
rule: a RuleId value
Returns:
the set of rules correponding to the RuleId value for this class.

TypeId gcu::Object::GetType  )  [inline]
 

Returns:
the type of the object. If the type is at least equal to OtherType, it is a dynamically created type returned by the Object::AddType method.

Definition at line 137 of file object.h.

static TypeId gcu::Object::GetTypeId const string &  Name  )  [static]
 

Parameters:
Name: the name of the Object derived class
Returns:
the TypeId corresponding to Name

static string gcu::Object::GetTypeName TypeId  Id  )  [static]
 

Parameters:
Id: the TypeId of the Object derived class
Returns:
the name of the type.

virtual double gcu::Object::GetYAlign  )  [virtual]
 

Used to retreive the y coordinate for alignment. The default implementation returns 0.0 and every derived class for which alignment has a meaning should implement this method.

Returns:
y coordinate used for objects alignment.

bool gcu::Object::HasChildren  )  [inline]
 

Returns:
true if the Object has at least a child an false if it has none.

Definition at line 365 of file object.h.

bool gcu::Object::IsLocked  )  [inline]
 

Returns:
true if signals are locked, false otherwise
Since 0.4.2

Definition at line 443 of file object.h.

virtual bool gcu::Object::Load xmlNodePtr  node  )  [virtual]
 

Parameters:
node: a pointer to the xmlNode containing the serialized object.
Used to load an Object in memory. The Object must already exist.

Example:

        std::string str = (const char*)node->name;
        Object* pObject = Object::CreateObject(str, this);
        if (pObject) {
                if (!pObject->Load(node)) delete Object; 
        } else
                cerr << "Warning: unknown object: " << str << endl;

Returns:
true on succes, false otherwise.

Reimplemented in gcu::Atom, and gcu::Bond.

void gcu::Object::Lock bool  state = true  ) 
 

Parameters:
state: whether to bloc signals or not
Blocks signals if state is true and unblocks if state is false.

Since 0.4.2

virtual void gcu::Object::Move double  x,
double  y,
double  z = 0.
[virtual]
 

Parameters:
x: the x component of the transation vector.
y: the y component of the transation vector.
z: the z component of the transation vector.
Used to move an object. This virtual method should most often be overrided by Object derived classes for which it makes sense. The base Object class has no coordinates and the default method only loads its id and children.

Reimplemented in gcu::Atom, and gcu::Bond.

virtual bool gcu::Object::OnSignal SignalId  Signal,
Object Child
[virtual]
 

Parameters:
Signal: the appropriate SignalId
Child: the child which emitted the signal or NULL
This function is called by the framework when a signal has been emitted for the object. It should not be called by a program; call Object::EmitSignal instead.

Returns:
true if the signal should be propagated to the parent, false otherwise.

virtual void gcu::Object::OnUnlink Object object  )  [virtual]
 

Parameters:
object: the object just unlinked by Object::Unlink.
Virtual method called when an object hs been unlinked. Programs should not call it directly, but should call Object::OnUnlink instead.

virtual void gcu::Object::Print GnomePrintContext *  pc  )  [virtual]
 

Parameters:
pc: the GnomePrintContext to which the document is printed.
This method might be used to print a document from an application using the Gnome Chemistry Utils.

virtual xmlNodePtr gcu::Object::Save xmlDocPtr  xml  )  [virtual]
 

Parameters:
xml: the xmlDoc used to save the document.
Used to save the Object to the xmlDoc. Each serializable Object should implement this virtual method.
Returns:
the xmlNode containing the serialized object. The name of the node should be the name of the corresponding type used as first parameter to the Object::AddType method. The default method just saves the id and children.

Reimplemented in gcu::Atom, and gcu::Bond.

bool gcu::Object::SaveChildren xmlDocPtr  xml,
xmlNodePtr  node
 

Parameters:
xml: the xmlDoc used to save the document.
node: the node representing the Object.
This method calls Object::Save fo each child of the Object instance and add the xmlNode returned to the children of node. It might be called from the Save method of objects having serializable children.
Returns:
true on succes, false otherwise.

void gcu::Object::SaveId xmlNodePtr  node  ) 
 

Parameters:
node: the node representing the Object.
This helper method saves the Id of the node as a property of the xmlNode.

static void gcu::Object::SetCreationLabel TypeId  Id,
string  Label
[static]
 

Parameters:
Id: the TypeId of a class
Label: the string to display in a contextual menu
Used to give a label for contextual menus used when the creation of an instance of the class seems possible.

void gcu::Object::SetId gchar *  Id  ) 
 

Parameters:
Id: the id of the Object instance.
Every object must have an Id, since searches in the document tree uses it.

void gcu::Object::SetParent Object Parent  ) 
 

Parameters:
Parent: the new parent of the Object or NULL.
When Parent is not NULL, this is equivalent to
 Parent->AddChild(this);
Otherwise, it removes the Object from the Document tree.

virtual void gcu::Object::SetSelected GtkWidget *  w,
int  state
[virtual]
 

Parameters:
w: the GtkWidget inside which the Object is displayed.
state: the selection state of the Object.
Used to set the selection state of the Object inside the widget. The values of state are application dependant and have no default value.

virtual void gcu::Object::Transform2D Matrix2D m,
double  x,
double  y
[virtual]
 

Parameters:
m: the 2D Matrix of the transformation.
x: the x component of the center of the transformation.
y: the y component of the center of the transformation.
Used to move and/or transform an object. This virtual method must be overrided by Object derived classes for which it makes sense. The base Object class has no coordinates and the default method calls the corresponding method for every child.

Reimplemented in gcu::Atom, and gcu::Bond.

void gcu::Object::Unlink Object object  ) 
 

Parameters:
object: the object to unlink.
Unlinks object and calls Object::OnUnlink.

virtual void gcu::Object::Update GtkWidget *  w  )  [virtual]
 

Parameters:
w: the GtkWidget inside which the Object is displayed.
Used to update the representation of the Object in the widget. This method might be overrided for displayable Object classes unless the application uses another mechanism.


The documentation for this class was generated from the following file:
Generated on Mon Sep 12 15:31:55 2005 for The Gnome Chemistry Utils by  doxygen 1.4.1