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Handling events behavior (usually mouse or keyboard events). More...
#include <ilviews/protos/eventacc.h>
Public Member Functions | |
IlvEventAccessor (const char *name, const IlvValueTypeClass *type, const char *nodeName, IlvEventType eventType, IlUShort detail, IlUShort modifiers, IlvEventAccessorData whichData) | |
Creates an event accessor. More... | |
virtual IlBoolean | handleEvent (IlvAccessorHolder *object, IlvGraphic *g, IlvEvent &, IlvView *, IlvTransformer *t) |
Filters the events and performs the value change of the attribute (if appropriate). More... | |
Public Member Functions inherited from IlvAbstractEventAccessor | |
IlvAbstractEventAccessor (const char *name, const IlvValueTypeClass *type, const char *nodeName) | |
Creates an event accessor. More... | |
virtual void | initialize (const IlvAccessorHolder *object) |
Attachment method to an IlvAccessorHolder . 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... | |
Additional Inherited Members | |
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... | |
Handling events behavior (usually mouse or keyboard events).
Library: ilvproto
IlvEventAccessor
is a subtype of the IlvAbstractEventAccessor
class that handles events of a specified type. When an event is received, the attribute value is set to one of the data members of the event.
IlvEventAccessor::IlvEventAccessor | ( | const char * | name, |
const IlvValueTypeClass * | type, | ||
const char * | nodeName, | ||
IlvEventType | eventType, | ||
IlUShort | detail, | ||
IlUShort | modifiers, | ||
IlvEventAccessorData | whichData | ||
) |
Creates an event accessor.
name | Name of the attribute that handles events. |
type | Type of the attribute that handles events. |
nodeName | Name of the node for which events are handled. If nodeName is "[All_nodes]" , the accessor handles user events received by any node of the group to which it is attached. If nodeName is the name of a subgroup, the accessor handles events received by any node of the subgroup. |
eventType | Type of the events that must be handled (for example, IlvButtonDown ). |
detail | Code of the events. For example IlvLeftButton , the ASCII code of the character `a' , or the key code IlvReturn . |
modifiers | A mask specifying a combination of modifier keys that must be pressed, for example IlvCtrlModifier |IlvShiftModifier . Only the events with the specified modifiers will be handled. Use IlvAnyModifier to ignore the modifiers of the event. |
whichData | Specifies which data member of the event the accessor value will be set to. |
|
virtual |
Filters the events and performs the value change of the attribute (if appropriate).
Filters the events according to the eventType, detail, and modifiers parameters of the constructor. Then, it calls IlvAccessible::changeValue
to set the accessor value to the event data member specified by the whichData parameter.
Reimplemented from IlvAbstractEventAccessor.
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