tachyon::DoubleClickTracker Struct Reference

Click-gesture tracker, owned per widget instance so instances (and tests) don't share it. More...

#include <gui_controls/gui_widget_state_types.h>

Classes
struct	Result
	Whether this click hit the same item as the previous one, and the time since it. More...

Public Member Functions
Result	Update (tachyon::ID id)
	Records a click on id and compares it with the previous click.
bool	IsDoubleClick (tachyon::ID id)
	Records a click on id: true when it is the second click of a double-click (the same item, within DoubleClickMilliseconds()).
void	Reset ()
	Forgets the previous click, so the next one never counts as a repeat.

Public Attributes
tachyon::ID	lastID = tachyon::ID::Invalid()
	item of the previous click
int64_t	lastTimeNanos = 0
	steady-clock ns; see SteadyClockNowNanos()

Detailed Description

Click-gesture tracker, owned per widget instance so instances (and tests) don't share it.

Member Function Documentation

Update()

Result tachyon::DoubleClickTracker::Update ( tachyon::ID id )

inline

Records a click on id and compares it with the previous click.

IsDoubleClick()

bool tachyon::DoubleClickTracker::IsDoubleClick ( tachyon::ID id )

inline

Records a click on id: true when it is the second click of a double-click (the same item, within DoubleClickMilliseconds()).

A double-click is forgotten, so a third click starts over.

Reset()

void tachyon::DoubleClickTracker::Reset ( )

inline

Forgets the previous click, so the next one never counts as a repeat.

Member Data Documentation

lastID

tachyon::ID tachyon::DoubleClickTracker::lastID = tachyon::ID::Invalid()

item of the previous click

lastTimeNanos

int64_t tachyon::DoubleClickTracker::lastTimeNanos = 0

steady-clock ns; see SteadyClockNowNanos()

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The documentation for this struct was generated from the following file:

• gui_controls/gui_widget_state_types.h