move TouchEvent out of EventTypes to its own file

This commit is contained in:
Stephen Birarda 2014-10-27 14:37:04 -07:00
parent 3aa7c3c7dc
commit e72409bf39
5 changed files with 270 additions and 235 deletions

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@ -20,6 +20,7 @@
#include "EventTypes.h"
#include "KeyEvent.h"
#include "MouseEvent.h"
#include "TouchEvent.h"
class AbstractInputController : public QObject {
Q_OBJECT

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@ -14,209 +14,18 @@
#include "KeyEvent.h"
#include "MouseEvent.h"
#include "TouchEvent.h"
#include "EventTypes.h"
void registerEventTypes(QScriptEngine* engine) {
qScriptRegisterMetaType(engine, KeyEvent::toScriptValue, KeyEvent::fromScriptValue);
qScriptRegisterMetaType(engine, MouseEvent::toScriptValue, MouseEvent::fromScriptValue);
qScriptRegisterMetaType(engine, touchEventToScriptValue, touchEventFromScriptValue);
qScriptRegisterMetaType(engine, TouchEvent::toScriptValue, TouchEvent::fromScriptValue);
qScriptRegisterMetaType(engine, wheelEventToScriptValue, wheelEventFromScriptValue);
qScriptRegisterMetaType(engine, spatialEventToScriptValue, spatialEventFromScriptValue);
}
TouchEvent::TouchEvent() :
x(0.0f),
y(0.0f),
isPressed(false),
isMoved(false),
isStationary(false),
isReleased(false),
isShifted(false),
isControl(false),
isMeta(false),
isAlt(false),
touchPoints(0),
points(),
radius(0.0f),
isPinching(false),
isPinchOpening(false),
angles(),
angle(0.0f),
deltaAngle(0.0f),
isRotating(false),
rotating("none")
{
};
TouchEvent::TouchEvent(const QTouchEvent& event) :
// these values are not set by initWithQTouchEvent() because they only apply to comparing to other events
isPinching(false),
isPinchOpening(false),
deltaAngle(0.0f),
isRotating(false),
rotating("none")
{
initWithQTouchEvent(event);
}
TouchEvent::TouchEvent(const QTouchEvent& event, const TouchEvent& other) {
initWithQTouchEvent(event);
calculateMetaAttributes(other);
}
// returns the angle (in degrees) between two points (note: 0 degrees is 'east')
float angleBetweenPoints(const glm::vec2& a, const glm::vec2& b ) {
glm::vec2 length = b - a;
float angle = DEGREES_PER_RADIAN * std::atan2(length.y, length.x);
if (angle < 0) {
angle += 360.0f;
};
return angle;
}
void TouchEvent::initWithQTouchEvent(const QTouchEvent& event) {
// convert the touch points into an average
const QList<QTouchEvent::TouchPoint>& tPoints = event.touchPoints();
float touchAvgX = 0.0f;
float touchAvgY = 0.0f;
touchPoints = tPoints.count();
if (touchPoints > 1) {
for (int i = 0; i < touchPoints; ++i) {
touchAvgX += tPoints[i].pos().x();
touchAvgY += tPoints[i].pos().y();
// add it to our points vector
glm::vec2 thisPoint(tPoints[i].pos().x(), tPoints[i].pos().y());
points << thisPoint;
}
touchAvgX /= (float)(touchPoints);
touchAvgY /= (float)(touchPoints);
} else {
// I'm not sure this should ever happen, why would Qt send us a touch event for only one point?
// maybe this happens in the case of a multi-touch where all but the last finger is released?
touchAvgX = tPoints[0].pos().x();
touchAvgY = tPoints[0].pos().y();
}
x = touchAvgX;
y = touchAvgY;
// after calculating the center point (average touch point), determine the maximum radius
// also calculate the rotation angle for each point
float maxRadius = 0.0f;
glm::vec2 center(x,y);
for (int i = 0; i < touchPoints; ++i) {
glm::vec2 touchPoint(tPoints[i].pos().x(), tPoints[i].pos().y());
float thisRadius = glm::distance(center,touchPoint);
if (thisRadius > maxRadius) {
maxRadius = thisRadius;
}
// calculate the angle for this point
float thisAngle = angleBetweenPoints(center,touchPoint);
angles << thisAngle;
}
radius = maxRadius;
// after calculating the angles for each touch point, determine the average angle
float totalAngle = 0.0f;
for (int i = 0; i < touchPoints; ++i) {
totalAngle += angles[i];
}
angle = totalAngle/(float)touchPoints;
isPressed = event.touchPointStates().testFlag(Qt::TouchPointPressed);
isMoved = event.touchPointStates().testFlag(Qt::TouchPointMoved);
isStationary = event.touchPointStates().testFlag(Qt::TouchPointStationary);
isReleased = event.touchPointStates().testFlag(Qt::TouchPointReleased);
// keyboard modifiers
isShifted = event.modifiers().testFlag(Qt::ShiftModifier);
isMeta = event.modifiers().testFlag(Qt::MetaModifier);
isControl = event.modifiers().testFlag(Qt::ControlModifier);
isAlt = event.modifiers().testFlag(Qt::AltModifier);
}
void TouchEvent::calculateMetaAttributes(const TouchEvent& other) {
// calculate comparative event attributes...
if (other.radius > radius) {
isPinching = true;
isPinchOpening = false;
} else if (other.radius < radius) {
isPinchOpening = true;
isPinching = false;
} else {
isPinching = other.isPinching;
isPinchOpening = other.isPinchOpening;
}
// determine if the points are rotating...
// note: if the number of touch points change between events, then we don't consider ourselves to be rotating
if (touchPoints == other.touchPoints) {
deltaAngle = angle - other.angle;
if (other.angle < angle) {
isRotating = true;
rotating = "clockwise";
} else if (other.angle > angle) {
isRotating = true;
rotating = "counterClockwise";
} else {
isRotating = false;
rotating = "none";
}
} else {
deltaAngle = 0.0f;
isRotating = false;
rotating = "none";
}
}
QScriptValue touchEventToScriptValue(QScriptEngine* engine, const TouchEvent& event) {
QScriptValue obj = engine->newObject();
obj.setProperty("x", event.x);
obj.setProperty("y", event.y);
obj.setProperty("isPressed", event.isPressed);
obj.setProperty("isMoved", event.isMoved);
obj.setProperty("isStationary", event.isStationary);
obj.setProperty("isReleased", event.isReleased);
obj.setProperty("isShifted", event.isShifted);
obj.setProperty("isMeta", event.isMeta);
obj.setProperty("isControl", event.isControl);
obj.setProperty("isAlt", event.isAlt);
obj.setProperty("touchPoints", event.touchPoints);
QScriptValue pointsObj = engine->newArray();
int index = 0;
foreach (glm::vec2 point, event.points) {
QScriptValue thisPoint = vec2toScriptValue(engine, point);
pointsObj.setProperty(index, thisPoint);
index++;
}
obj.setProperty("points", pointsObj);
obj.setProperty("radius", event.radius);
obj.setProperty("isPinching", event.isPinching);
obj.setProperty("isPinchOpening", event.isPinchOpening);
obj.setProperty("angle", event.angle);
obj.setProperty("deltaAngle", event.deltaAngle);
QScriptValue anglesObj = engine->newArray();
index = 0;
foreach (float angle, event.angles) {
anglesObj.setProperty(index, angle);
index++;
}
obj.setProperty("angles", anglesObj);
obj.setProperty("isRotating", event.isRotating);
obj.setProperty("rotating", event.rotating);
return obj;
}
void touchEventFromScriptValue(const QScriptValue& object, TouchEvent& event) {
// nothing for now...
}
WheelEvent::WheelEvent() :
x(0.0f),
y(0.0f),

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@ -12,50 +12,12 @@
#ifndef hifi_EventTypes_h
#define hifi_EventTypes_h
#include <glm/glm.hpp>
#include <glm/gtc/quaternion.hpp>
#include <QtScript/QScriptEngine>
#include <QMouseEvent>
#include <QTouchEvent>
#include <QWheelEvent>
class TouchEvent {
public:
TouchEvent();
TouchEvent(const QTouchEvent& event);
TouchEvent(const QTouchEvent& event, const TouchEvent& other);
float x;
float y;
bool isPressed;
bool isMoved;
bool isStationary;
bool isReleased;
bool isShifted;
bool isControl;
bool isMeta;
bool isAlt;
int touchPoints;
QVector<glm::vec2> points;
float radius;
bool isPinching;
bool isPinchOpening;
// angles are in degrees
QVector<float> angles; // angle from center to each point
float angle; // the average of the angles
float deltaAngle; // the change in average angle from last event
bool isRotating;
QString rotating;
private:
void initWithQTouchEvent(const QTouchEvent& event);
void calculateMetaAttributes(const TouchEvent& other);
};
class WheelEvent {
public:
WheelEvent();
@ -86,16 +48,12 @@ public:
private:
};
Q_DECLARE_METATYPE(TouchEvent)
Q_DECLARE_METATYPE(WheelEvent)
Q_DECLARE_METATYPE(SpatialEvent)
void registerEventTypes(QScriptEngine* engine);
QScriptValue touchEventToScriptValue(QScriptEngine* engine, const TouchEvent& event);
void touchEventFromScriptValue(const QScriptValue& object, TouchEvent& event);
QScriptValue wheelEventToScriptValue(QScriptEngine* engine, const WheelEvent& event);
void wheelEventFromScriptValue(const QScriptValue& object, WheelEvent& event);

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@ -0,0 +1,211 @@
//
// TouchEvent.cpp
// script-engine/src
//
// Created by Stephen Birarda on 2014-10-27.
// Copyright 2014 High Fidelity, Inc.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
#include <qscriptengine.h>
#include <qscriptvalue.h>
#include <QTouchEvent>
#include <RegisteredMetaTypes.h>
#include <SharedUtil.h>
#include "TouchEvent.h"
TouchEvent::TouchEvent() :
x(0.0f),
y(0.0f),
isPressed(false),
isMoved(false),
isStationary(false),
isReleased(false),
isShifted(false),
isControl(false),
isMeta(false),
isAlt(false),
touchPoints(0),
points(),
radius(0.0f),
isPinching(false),
isPinchOpening(false),
angles(),
angle(0.0f),
deltaAngle(0.0f),
isRotating(false),
rotating("none")
{
}
TouchEvent::TouchEvent(const QTouchEvent& event) :
// these values are not set by initWithQTouchEvent() because they only apply to comparing to other events
isPinching(false),
isPinchOpening(false),
deltaAngle(0.0f),
isRotating(false),
rotating("none")
{
initWithQTouchEvent(event);
}
TouchEvent::TouchEvent(const QTouchEvent& event, const TouchEvent& other) {
initWithQTouchEvent(event);
calculateMetaAttributes(other);
}
// returns the angle (in degrees) between two points (note: 0 degrees is 'east')
float angleBetweenPoints(const glm::vec2& a, const glm::vec2& b ) {
glm::vec2 length = b - a;
float angle = DEGREES_PER_RADIAN * std::atan2(length.y, length.x);
if (angle < 0) {
angle += 360.0f;
};
return angle;
}
void TouchEvent::initWithQTouchEvent(const QTouchEvent& event) {
// convert the touch points into an average
const QList<QTouchEvent::TouchPoint>& tPoints = event.touchPoints();
float touchAvgX = 0.0f;
float touchAvgY = 0.0f;
touchPoints = tPoints.count();
if (touchPoints > 1) {
for (int i = 0; i < touchPoints; ++i) {
touchAvgX += tPoints[i].pos().x();
touchAvgY += tPoints[i].pos().y();
// add it to our points vector
glm::vec2 thisPoint(tPoints[i].pos().x(), tPoints[i].pos().y());
points << thisPoint;
}
touchAvgX /= (float)(touchPoints);
touchAvgY /= (float)(touchPoints);
} else {
// I'm not sure this should ever happen, why would Qt send us a touch event for only one point?
// maybe this happens in the case of a multi-touch where all but the last finger is released?
touchAvgX = tPoints[0].pos().x();
touchAvgY = tPoints[0].pos().y();
}
x = touchAvgX;
y = touchAvgY;
// after calculating the center point (average touch point), determine the maximum radius
// also calculate the rotation angle for each point
float maxRadius = 0.0f;
glm::vec2 center(x,y);
for (int i = 0; i < touchPoints; ++i) {
glm::vec2 touchPoint(tPoints[i].pos().x(), tPoints[i].pos().y());
float thisRadius = glm::distance(center,touchPoint);
if (thisRadius > maxRadius) {
maxRadius = thisRadius;
}
// calculate the angle for this point
float thisAngle = angleBetweenPoints(center,touchPoint);
angles << thisAngle;
}
radius = maxRadius;
// after calculating the angles for each touch point, determine the average angle
float totalAngle = 0.0f;
for (int i = 0; i < touchPoints; ++i) {
totalAngle += angles[i];
}
angle = totalAngle/(float)touchPoints;
isPressed = event.touchPointStates().testFlag(Qt::TouchPointPressed);
isMoved = event.touchPointStates().testFlag(Qt::TouchPointMoved);
isStationary = event.touchPointStates().testFlag(Qt::TouchPointStationary);
isReleased = event.touchPointStates().testFlag(Qt::TouchPointReleased);
// keyboard modifiers
isShifted = event.modifiers().testFlag(Qt::ShiftModifier);
isMeta = event.modifiers().testFlag(Qt::MetaModifier);
isControl = event.modifiers().testFlag(Qt::ControlModifier);
isAlt = event.modifiers().testFlag(Qt::AltModifier);
}
void TouchEvent::calculateMetaAttributes(const TouchEvent& other) {
// calculate comparative event attributes...
if (other.radius > radius) {
isPinching = true;
isPinchOpening = false;
} else if (other.radius < radius) {
isPinchOpening = true;
isPinching = false;
} else {
isPinching = other.isPinching;
isPinchOpening = other.isPinchOpening;
}
// determine if the points are rotating...
// note: if the number of touch points change between events, then we don't consider ourselves to be rotating
if (touchPoints == other.touchPoints) {
deltaAngle = angle - other.angle;
if (other.angle < angle) {
isRotating = true;
rotating = "clockwise";
} else if (other.angle > angle) {
isRotating = true;
rotating = "counterClockwise";
} else {
isRotating = false;
rotating = "none";
}
} else {
deltaAngle = 0.0f;
isRotating = false;
rotating = "none";
}
}
QScriptValue TouchEvent::toScriptValue(QScriptEngine* engine, const TouchEvent& event) {
QScriptValue obj = engine->newObject();
obj.setProperty("x", event.x);
obj.setProperty("y", event.y);
obj.setProperty("isPressed", event.isPressed);
obj.setProperty("isMoved", event.isMoved);
obj.setProperty("isStationary", event.isStationary);
obj.setProperty("isReleased", event.isReleased);
obj.setProperty("isShifted", event.isShifted);
obj.setProperty("isMeta", event.isMeta);
obj.setProperty("isControl", event.isControl);
obj.setProperty("isAlt", event.isAlt);
obj.setProperty("touchPoints", event.touchPoints);
QScriptValue pointsObj = engine->newArray();
int index = 0;
foreach (glm::vec2 point, event.points) {
QScriptValue thisPoint = vec2toScriptValue(engine, point);
pointsObj.setProperty(index, thisPoint);
index++;
}
obj.setProperty("points", pointsObj);
obj.setProperty("radius", event.radius);
obj.setProperty("isPinching", event.isPinching);
obj.setProperty("isPinchOpening", event.isPinchOpening);
obj.setProperty("angle", event.angle);
obj.setProperty("deltaAngle", event.deltaAngle);
QScriptValue anglesObj = engine->newArray();
index = 0;
foreach (float angle, event.angles) {
anglesObj.setProperty(index, angle);
index++;
}
obj.setProperty("angles", anglesObj);
obj.setProperty("isRotating", event.isRotating);
obj.setProperty("rotating", event.rotating);
return obj;
}
void TouchEvent::fromScriptValue(const QScriptValue& object, TouchEvent& event) {
// nothing for now...
}

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@ -0,0 +1,56 @@
//
// TouchEvent.h
// script-engine/src
//
// Created by Stephen Birarda on 2014-10-27.
// Copyright 2014 High Fidelity, Inc.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
#ifndef hifi_TouchEvent_h
#define hifi_TouchEvent_h
#include <glm/glm.hpp>
class TouchEvent {
public:
TouchEvent();
TouchEvent(const QTouchEvent& event);
TouchEvent(const QTouchEvent& event, const TouchEvent& other);
static QScriptValue toScriptValue(QScriptEngine* engine, const TouchEvent& event);
static void fromScriptValue(const QScriptValue& object, TouchEvent& event);
float x;
float y;
bool isPressed;
bool isMoved;
bool isStationary;
bool isReleased;
bool isShifted;
bool isControl;
bool isMeta;
bool isAlt;
int touchPoints;
QVector<glm::vec2> points;
float radius;
bool isPinching;
bool isPinchOpening;
// angles are in degrees
QVector<float> angles; // angle from center to each point
float angle; // the average of the angles
float deltaAngle; // the change in average angle from last event
bool isRotating;
QString rotating;
private:
void initWithQTouchEvent(const QTouchEvent& event);
void calculateMetaAttributes(const TouchEvent& other);
};
Q_DECLARE_METATYPE(TouchEvent)
#endif // hifi_TouchEvent_h