Rogue Wave Views Prototypes Package API Reference Guide |
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Watch attribute behavior. More...
#include <ilviews/protos/connacc.h>
Public Member Functions | |
IlvLoopbackAccessor (const char *name, const IlvValueTypeClass *type, const char *outacc) | |
Creates a watching behavior. More... | |
Public Member Functions inherited from IlvUserAccessor | |
IlvUserAccessor (const char *name, const IlvValueTypeClass *type, IlUInt flags=0) | |
Constructor. More... | |
virtual IlBoolean | isOutputValue (const IlSymbol *) const |
Queries if the accessor is an output accessor. More... | |
IlBoolean | isPrivate () const |
Checks the private status. More... | |
IlBoolean | isRuntime () const |
Checks the RunTime status. More... | |
void | setPrivate (IlBoolean val) |
Sets the Private flag of this accessor. More... | |
void | setRuntime (IlBoolean runTime) |
Sets the RunTime flag of this accessor. More... | |
Public Member Functions inherited from IlvAccessor | |
IlvAccessor (const char *name, IlvValueTypeClass *type) | |
Creates a new accessor of name name and type type. | |
virtual IlBoolean | changeValue (IlvAccessorHolder *object, const IlvValue &val) |
Called by the method IlvAccessible::changeValue() for each IlvAccessor attached to the IlvAccessorHolder . | |
virtual IlBoolean | changeValues (IlvAccessorHolder *object, const IlvValue *values, IlUShort count) |
Called by the method IlvAccessible::changeValues() for each IlvAccessor attached to the IlvAccessorHolder . | |
virtual void | getAccessors (const IlSymbol *const **accessors, const IlvValueTypeClass *const **types, IlUInt &count) const |
Returns the names and types of the values handled by this accessor. More... | |
const IlSymbol * | getName () const |
Returns the name of the accessor. More... | |
IlvValueTypeClass * | getType () const |
Returns the type of the accessor. More... | |
virtual IlBoolean | isOutputAccessor (IlBoolean &inputAndOutput) |
Queries if the accessor is an output accessor. More... | |
virtual IlShort | matchValues (const IlvAccessorHolder *object, const IlvValue *values, IlUShort count, IlvValue *matchingValues=0) const |
Returns the number of values that are handled by the accessor in the values array of length count. More... | |
virtual IlvValue & | queryValue (const IlvAccessorHolder *object, IlvValue &val) const |
Called by the method IlvAccessible::queryValue() for each IlvAccessor attached to the IlvAccessorHolder . | |
virtual void | queryValues (const IlvAccessorHolder *object, IlvValue *values, IlUShort count) const |
Called by the method IlvAccessible::queryValues() for each IlvAccessor attached to the IlvAccessorHolder . | |
void | setName (const IlSymbol *name) |
Sets the name of the accessor. More... | |
Protected Member Functions | |
virtual void | initialize (const IlvAccessorHolder *object) |
Attachment method to an IlvAccessorHolder . More... | |
Protected Member Functions inherited from IlvUserAccessor | |
virtual IlUInt | compareValues (const IlvAccessorHolder *object, const IlvAccessible *ref, IlvValue *values, IlUShort count, IlvValueArray &diffs) const |
Compares the values in ref and object and returns the differing values. More... | |
IlBoolean | getValue (IlvValue &val, const IlvAccessorHolder *object, IlvDisplay *display, IlvValueTypeClass *typeClass=0, IlSymbol *typeVal=0, const IlvValue *arg=0) const |
Evaluates a parameter of a user accessor. More... | |
Watch attribute behavior.
Library: ilvproto
This accessor class attaches a subscription to an observed attribute (also called output value). The attribute to which this behavior is attached will automatically be set to the value of the watched attribute when this watched attribute is modified. It is equivalent to an internal value subscription. The observed attribute must be capable of notification, that is, it must have a behavior of type 'Event', 'Callback', or 'Output'.
IlvLoopbackAccessor::IlvLoopbackAccessor | ( | const char * | name, |
const IlvValueTypeClass * | type, | ||
const char * | outacc | ||
) |
Creates a watching behavior.
name | Name of the attribute to attach the behavior to. |
type | Type of the behavior, needed only for initialization. |
outacc | Name of the notifying attribute (also called output value) that the accessor will watch. Whenever this notifying attribute is changed, the loopback accessor value is changed to the new value of the notifying attribute. This parameter should correspond to an attribute that has an attached 'notifying behavior' so that notification can occur. |
|
protectedvirtual |
Attachment method to an IlvAccessorHolder
.
This method is called when the accessor object is attached to a group. You can redefine it in subclasses of IlvUserAccessor
to perform any kind of initialization.
object | The object the accessor is attached to. |
Reimplemented from IlvUserAccessor.
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