PointerEventList

Inheritance:

Methods of PointerEventList:

Methods of EventStoreValueBase:

Methods of TypedWritableReferenceCount:

Methods of TypedWritable:

Methods of TypedObject:

Methods of ReferenceCount:

addEvent
void PointerEventList::add_event(bool in_win, int xpos, int ypos, int seq, double time);

Description: Adds a new event to the end of the list. Automatically calculates the dx, dy, length, direction, and rotation for all but the first event.

clear
void PointerEventList::clear(void);

Description: Empties all the events from the list.

encircles
bool PointerEventList::encircles(int x, int y) const;

Description: Returns true if the trail loops around the specified point.

getClassType
static TypeHandle PointerEventList::get_class_type(void);

Undocumented function.

getDirection
double PointerEventList::get_direction(int n) const;

Description: Get the direction of the nth event.

getDx
int PointerEventList::get_dx(int n) const;

Description: Get the x-coordinate of the nth event.

getDy
int PointerEventList::get_dy(int n) const;

Description: Get the y-coordinate of the nth event.

getInWindow
bool PointerEventList::get_in_window(int n) const;

Description: Get the in-window flag of the nth event.

getLength
double PointerEventList::get_length(int n) const;

Description: Get the length of the nth event.

getNumEvents
int PointerEventList::get_num_events(void) const;

Description: Returns the number of events in the list.

getRotation
double PointerEventList::get_rotation(int n) const;

Description: Get the rotation of the nth event.

getSequence
int PointerEventList::get_sequence(int n) const;

Description: Get the sequence number of the nth event.

getTime
double PointerEventList::get_time(int n) const;

Description: Get the timestamp of the nth event.

getXpos
int PointerEventList::get_xpos(int n) const;

Description: Get the x-coordinate of the nth event.

getYpos
int PointerEventList::get_ypos(int n) const;

Description: Get the y-coordinate of the nth event.

matchPattern
double PointerEventList::match_pattern(string const &pattern, double rot, double seglen);

Description: This function is not implemented yet. It is a work in progress. The intent is as follows:
Returns a nonzero value if the mouse movements match the specified pattern. The higher the value, the better the match. The pattern is a sequence of compass directions (ie, "E", "NE", etc) separated by spaces. If rot is nonzero, then the pattern is rotated counterclockwise by the specified amount before testing. Seglen is the minimum length a mouse movement needs to be in order to be considered significant.

popFront
void PointerEventList::pop_front(void);

Description: Discards the first event on the list.

totalTurns
double PointerEventList::total_turns(double sec) const;

Description: returns the total angular deviation that the trail has made in the specified time period. A small number means that the trail is moving in a relatively straight line, a large number means that the trail is zig-zagging or spinning. The result is in degrees.

getClassType
static TypeHandle EventStoreValueBase::get_class_type(void);

Undocumented function.

output
virtual void EventStoreValueBase::output(ostream &out) const = 0;

Undocumented function.

getClassType
static TypeHandle TypedWritableReferenceCount::get_class_type(void);

Undocumented function.

getClassType
static TypeHandle TypedWritable::get_class_type(void);

Undocumented function.

getClassType
static TypeHandle TypedObject::get_class_type(void);

Undocumented function.

getType
virtual TypeHandle TypedObject::get_type(void) const = 0;

Derived classes should override this function to return get_class_type().

getTypeIndex
int TypedObject::get_type_index(void) const;

Description: Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. This is equivalent to get_type().get_index().

isExactType
bool TypedObject::is_exact_type(TypeHandle handle) const;

Description: Returns true if the current object is the indicated type exactly.

isOfType
bool TypedObject::is_of_type(TypeHandle handle) const;

Description: Returns true if the current object is or derives from the indicated type.

getClassType
static TypeHandle ReferenceCount::get_class_type(void);

Undocumented function.

getRefCount
int ReferenceCount::get_ref_count(void) const;

Description: Returns the current reference count.

ref
void ReferenceCount::ref(void) const;

Description: Explicitly increments the reference count. User code should avoid using ref() and unref() directly, which can result in missed reference counts. Instead, let a PointerTo object manage the reference counting automatically.
This function is const, even though it changes the object, because generally fiddling with an object's reference count isn't considered part of fiddling with the object. An object might be const in other ways, but we still need to accurately count the number of references to it.

testRefCountIntegrity
bool ReferenceCount::test_ref_count_integrity(void) const;

Description: Does some easy checks to make sure that the reference count isn't completely bogus. Returns true if ok, false otherwise.

testRefCountNonzero
bool ReferenceCount::test_ref_count_nonzero(void) const;

Description: Does some easy checks to make sure that the reference count isn't zero, or completely bogus. Returns true if ok, false otherwise.

unref
bool ReferenceCount::unref(void) const;

Description: Explicitly decrements the reference count. Note that the object will not be implicitly deleted by unref() simply because the reference count drops to zero. (Having a member function delete itself is problematic; plus, we don't have a virtual destructor anyway.) However, see the helper function unref_delete().
User code should avoid using ref() and unref() directly, which can result in missed reference counts. Instead, let a PointerTo object manage the reference counting automatically.
This function is const, even though it changes the object, because generally fiddling with an object's reference count isn't considered part of fiddling with the object. An object might be const in other ways, but we still need to accurately count the number of references to it.
The return value is true if the new reference count is nonzero, false if it is zero.