juce::TouchSurface::Touch Struct Reference

Structure used to describe touch properties. More...

#include <juce_TouchSurface.h>

Collaboration diagram for juce::TouchSurface::Touch:

Public Attributes
Block::UID	blockUID
	The ID of the block that generated this touch. More...
Block::Timestamp	eventTimestamp
	The timestamp of this event, in milliseconds since the device was booted. More...
int	index
	A touch index, which will stay constant for each finger as it is tracked. More...
bool	isTouchEnd
	True if this is the final event as this finger/index is lifted off. More...
bool	isTouchStart
	True if this is the first event for this finger/index. More...
float	startX
	The initial X position of the touchStart event corresponding to this finger/index. More...
float	startY
	The initial Y position of the touchStart event corresponding to this finger/index. More...
float	x
	The X position of this touch on the device, in logical units starting from 0 (left). More...
float	xVelocity
	An approximation of the velocity at which the X value is changing, measured in units/second. More...
float	y
	The Y position of this touch on the device, in logical units starting from 0 (top). More...
float	yVelocity
	An approximation of the velocity at which the Y value is changing, measured in units/second. More...
float	z
	The current pressure of this touch, in the range 0.0 (no pressure) to 1.0 (very hard). More...
float	zVelocity
	The rate at which pressure is currently changing, measured in units/second. More...

Detailed Description

Structure used to describe touch properties.

Member Data Documentation

blockUID

Block::UID juce::TouchSurface::Touch::blockUID

The ID of the block that generated this touch.

eventTimestamp

Block::Timestamp juce::TouchSurface::Touch::eventTimestamp

The timestamp of this event, in milliseconds since the device was booted.

index

int juce::TouchSurface::Touch::index

A touch index, which will stay constant for each finger as it is tracked.

isTouchEnd

bool juce::TouchSurface::Touch::isTouchEnd

True if this is the final event as this finger/index is lifted off.

Referenced by juce::TouchList< Type >::updateTouch().

isTouchStart

bool juce::TouchSurface::Touch::isTouchStart

True if this is the first event for this finger/index.

startX

float juce::TouchSurface::Touch::startX

The initial X position of the touchStart event corresponding to this finger/index.

startY

float juce::TouchSurface::Touch::startY

The initial Y position of the touchStart event corresponding to this finger/index.

x

float juce::TouchSurface::Touch::x

The X position of this touch on the device, in logical units starting from 0 (left).

See Block::getWidth() for the maximum X value on the device.

xVelocity

float juce::TouchSurface::Touch::xVelocity

An approximation of the velocity at which the X value is changing, measured in units/second.

This is intended as a useful hint to help with gesture detection, but may be 0 if the device doesn't provide this data.

y

float juce::TouchSurface::Touch::y

The Y position of this touch on the device, in logical units starting from 0 (top).

See Block::getHeight() to find the maximum Y on the device.

yVelocity

float juce::TouchSurface::Touch::yVelocity

An approximation of the velocity at which the Y value is changing, measured in units/second.

This is intended as a useful hint to help with gesture detection, but may be 0 if the device doesn't provide this data.

z

float juce::TouchSurface::Touch::z

The current pressure of this touch, in the range 0.0 (no pressure) to 1.0 (very hard).

zVelocity

float juce::TouchSurface::Touch::zVelocity

The rate at which pressure is currently changing, measured in units/second.

This is intended as a useful hint to help with gesture detection, but may be 0 if the device doesn't provide this data.

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

• juce_TouchSurface.h