NAME

SoMFEngine — multiple-value field containing any number of pointers to engines

INHERITS FROM

SoField > SoMField > SoMFEngine

SYNOPSIS

#include <Inventor/fields/SoMFEngine.h>

Methods from class SoMFEngine:

static SoType getClassTypeId()

virtual void getTypeId() const

SoEngine * operator [](int i) const

const SoEngine * * getValues(int start) const

int find(SoEngine * targetValue, SbBool addIfNotFound = FALSE)

void setValues(int start, int num, const SoEngine * *newValues)

void set1Value(int index, SoEngine * newValue)

SoEngine * operator =(SoEngine * newValue)

void setValue(SoEngine * newValue)

int operator ==(const SoMFEngine &f) const

int operator !=(const SoMFEngine &f) const

SoEngine * * startEditing()

void finishEditing()

Methods from class SoMField:

int getNum() const

void setNum(int num)

virtual void deleteValues(int start, int num = -1)

virtual void insertSpace(int start, int num)

SbBool set1(int index, const char *valueString)

void get1(int index, SbString &valueString)

Methods from class SoField:

void setIgnored(SbBool ignore)

SbBool isIgnored() const

SbBool isDefault() const

virtual SbBool isOfType(SoType type) const

SbBool set(const char *valueString)

void get(SbString &valueString)

void touch()

SbBool connectFrom(SoField *fromField)

SbBool connectFrom(SoEngineOutput *fromEngine)

void disconnect()

SbBool isConnected() const

SbBool isConnectedFromField() const

SbBool getConnectedField(SoField *&writingField) const

SbBool isConnectedFromEngine() const

SbBool getConnectedEngine(SoEngineOutput *&engineOutput) const

void enableConnection(SbBool flag)

SbBool isConnectionEnabled() const

int getForwardConnections(SoFieldList &list) const

SoFieldContainer * getContainer() const

DESCRIPTION

This field maintains a set of pointers to SoEngine instances, correctly maintaining their reference counts.

SoMFEngines are written to file as one or more engines. When more than one value is present, all of the values are enclosed in square brackets and separated by commas; for example:

[ ElapsedTime { }, OneShot { duration 2.0 }, USE myCalculator ]

METHODS

static SoType getClassTypeId()

virtual void getTypeId() const

Returns the type for this class or a particular object of this class.

SoEngine * operator [](int i) const

Returns the i'th value of the field. Indexing past the end of the field (passing in i greater than getNum()) will return garbage.

const SoEngine * * getValues(int start) const

Returns a pointer into the array of values in the field, starting at index start. The values are read-only; see the startEditing()/finishEditing() methods for a way of modifying values in place.

int find(SoEngine * targetValue, SbBool addIfNotFound = FALSE)

Finds the given value in the array and returns the index of that value in the array. If the value is not found, -1 is returned. If addIfNotFound is set, then targetValue is added to the end of the array (but -1 is still returned).

void setValues(int start, int num, const SoEngine * *newValues)

Sets num values starting at index start to the values in newValues. The array will be automatically be made larger to accomodate the new values, if necessary.

void set1Value(int index, SoEngine * newValue)

Sets the index'th value in the array to newValue. The array will be automatically expanded, if necessary.

SoEngine * operator =(SoEngine * newValue)

void setValue(SoEngine * newValue)

Sets the first value in the array to newValue, and deletes the second and subsequent values.

int operator ==(const SoMFEngine &f) const

int operator !=(const SoMFEngine &f) const

Returns TRUE if all of the values of this field equal (do not equal) those of the given field. If the fields are different types FALSE will always be returned (even if one field is an SoMFFloat with one value of 1.0 and the other is an SoMFInt with a value of 1, for example).

SoEngine * * startEditing()

void finishEditing()

startEditing() returns a pointer to the internally-maintained array that can be modified. The values in the array may be changed, but values cannot be added or removed. It is illegal to call any other editing methods between startEditing() and finishEditing() (e.g. set1Value(), setValue(), etc).

Fields, engines or sensors connected to this field and sensors are not notified that this field has changed until finishEditing() is called. Calling finishEditing() always sets the isDefault() flag to FALSE and informs engines and sensors that the field changed, even if none of the values actually were changed.