Records a set of pointer events that happened recently. This class is usually used only in the data graph, to transmit the recent pointer presses, but it may be used anywhere a list of PointerEvents is desired.
__init__() → None¶
getNumEvents() → size_t¶
Returns the number of events in the list.
- Return type
getInWindow(n: size_t) → bool¶
Get the in-window flag of the nth event.
getXpos(n: size_t) → int¶
Get the x-coordinate of the nth event.
getYpos(n: size_t) → int¶
Get the y-coordinate of the nth event.
getDx(n: size_t) → float¶
Get the x-delta of the nth event.
getDy(n: size_t) → float¶
Get the y-delta of the nth event.
getSequence(n: size_t) → int¶
Get the sequence number of the nth event.
getLength(n: size_t) → float¶
Get the length of the nth event.
getDirection(n: size_t) → float¶
Get the direction of the nth event.
getRotation(n: size_t) → float¶
Get the rotation of the nth event.
getTime(n: size_t) → float¶
Get the timestamp of the nth event.
clear() → None¶
Empties all the events from the list.
popFront() → None¶
Discards the first event on the list.
addEvent(data: PointerData, seq: int, time: float) → None¶
Adds a new event from the given PointerData object.
addEvent(in_win: bool, xpos: int, ypos: int, xdelta: float, ydelta: float, seq: int, time: float) → None
Adds a new event to the end of the list based on the given mouse movement.
addEvent(in_win: bool, xpos: int, ypos: int, seq: int, time: float) → None
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.
encircles(x: int, y: int) → bool¶
Returns true if the trail loops around the specified point.
totalTurns(sec: float) → float¶
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.
matchPattern(pattern: str, rot: float, seglen: float) → float¶
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.