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Diffstat (limited to 'src/quick/particles/qquickv8particledata.cpp')
| -rw-r--r-- | src/quick/particles/qquickv8particledata.cpp | 503 |
1 files changed, 503 insertions, 0 deletions
diff --git a/src/quick/particles/qquickv8particledata.cpp b/src/quick/particles/qquickv8particledata.cpp new file mode 100644 index 0000000000..80ce355cd7 --- /dev/null +++ b/src/quick/particles/qquickv8particledata.cpp @@ -0,0 +1,503 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the Declarative module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qquickv8particledata_p.h" +#include "qquickparticlesystem_p.h"//for QQuickParticleData +#include <QDebug> + +QT_BEGIN_NAMESPACE + +/*! + \qmlclass Particle + \inqmlmodule QtQuick.Particles 2 + \brief Particle elements can be manipulated in custom emitters and affectors. + + Particle elements are always managed internally by the ParticleSystem and cannot be created in QML. + However, sometimes they are exposed via signals so as to allow arbitrary changes to the particle state +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::initialX + The x coordinate of the particle at the beginning of its lifetime. + + The method of simulation prefers to have the initial values changed, rather + than determining and changing the value at a given time. Change initial + values in CustomEmitters instead of the current values. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::initialVX + The x velocity of the particle at the beginning of its lifetime. + + The method of simulation prefers to have the initial values changed, rather + than determining and changing the value at a given time. Change initial + values in CustomEmitters instead of the current values. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::initialAX + The x acceleration of the particle at the beginning of its lifetime. + + The method of simulation prefers to have the initial values changed, rather + than determining and changing the value at a given time. Change initial + values in CustomEmitters instead of the current values. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::initialY + The y coordinate of the particle at the beginning of its lifetime. + + The method of simulation prefers to have the initial values changed, rather + than determining and changing the value at a given time. Change initial + values in CustomEmitters instead of the current values. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::initialVY + The y velocity of the particle at the beginning of its lifetime. + + The method of simulation prefers to have the initial values changed, rather + than determining and changing the value at a given time. Change initial + values in CustomEmitters instead of the current values. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::initialAY + The y acceleration of the particle at the beginning of its lifetime. + + The method of simulation prefers to have the initial values changed, rather + than determining and changing the value at a given time. Change initial + values in CustomEmitters instead of the current values. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::x + The current x coordinate of the particle. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::vx + The current x velocity of the particle. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::ax + The current x acceleration of the particle. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::y + The current y coordinate of the particle. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::vy + The current y velocity of the particle. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::ay + The current y acceleration of the particle. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::t + The time, in seconds since the beginning of the simulation, that the particle was born. +*/ + + +/*! + \qmlproperty real QtQuick.Particles2::Particle::startSize + The size in pixels that the particle image is at the start + of its life. +*/ + + +/*! + \qmlproperty real QtQuick.Particles2::Particle::endSize + The size in pixels that the particle image is at the end + of its life. If this value is less than 0, then it is + disregarded and the particle will have its startSize for the + entire lifetime. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::lifeSpan + The time in seconds that the particle will live for. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::rotation + Degrees clockwise that the particle image is rotated at + the beginning of its life. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::rotationSpeed + Degrees clockwise per second that the particle image is rotated at while alive. +*/ +/*! + \qmlproperty bool QtQuick.Particles2::Particle::autoRotate + If autoRotate is true, then the particle's rotation will be + set so that it faces the direction of travel, plus any + rotation from the rotation or rotationSpeed properties. +*/ + +/*! + \qmlproperty bool QtQuick.Particles2::Particle::update + + Inside an Affector, the changes made to the particle will only be + applied if update is set to true. +*/ +/*! + \qmlproperty real QtQuick.Particles2::Particle::xDeformationVectorX + + The x component of the deformation vector along the X axis. ImageParticle + can draw particles across non-square shapes. It will draw the texture rectangle + across the parallelogram drawn with the x and y deformation vectors. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::yDeformationVectorX + + The y component of the deformation vector along the X axis. ImageParticle + can draw particles across non-square shapes. It will draw the texture rectangle + across the parallelogram drawn with the x and y deformation vectors. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::xDeformationVectorY + + The x component of the deformation vector along the X axis. ImageParticle + can draw particles across non-square shapes. It will draw the texture rectangle + across the parallelogram drawn with the x and y deformation vectors. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::yDeformationVectorY + + The y component of the deformation vector along the Y axis. ImageParticle + can draw particles across non-square shapes. It will draw the texture rectangle + across the parallelogram drawn with the x and y deformation vectors. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::red + + ImageParticle can draw colorized particles. When it does so, red is used + as the red channel of the color applied to the source image. + + Values are from 0.0 to 1.0. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::green + + ImageParticle can draw colorized particles. When it does so, green is used + as the green channel of the color applied to the source image. + + Values are from 0.0 to 1.0. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::blue + + ImageParticle can draw colorized particles. When it does so, blue is used + as the blue channel of the color applied to the source image. + + Values are from 0.0 to 1.0. +*/ + +/*! + \qmlproperty real QtQuick.Particles2::Particle::alpha + + ImageParticle can draw colorized particles. When it does so, alpha is used + as the alpha channel of the color applied to the source image. + + Values are from 0.0 to 1.0. +*/ +/*! + \qmlmethod real QtQuick.Particles2::Particle::lifeLeft + The time in seconds that the particle has left to live at + the current point in time. +*/ +/*! + \qmlmethod real QtQuick.Particles2::Particle::currentSize + The currentSize of the particle, interpolating between startSize and endSize based on the currentTime. +*/ + + + +//### Particle data handles are not locked to within certain scopes like QQuickContext2D, but there's no way to reload either... +class QV8ParticleDataResource : public QV8ObjectResource +{ + V8_RESOURCE_TYPE(ParticleDataType) +public: + QV8ParticleDataResource(QV8Engine *e) : QV8ObjectResource(e) {} + QQuickParticleData* datum;//TODO: Guard needed? +}; + +class QV8ParticleDataDeletable : public QV8Engine::Deletable +{ +public: + QV8ParticleDataDeletable(QV8Engine *engine); + ~QV8ParticleDataDeletable(); + + v8::Persistent<v8::Function> constructor; +}; + +static v8::Handle<v8::Value> particleData_discard(const v8::Arguments &args) +{ + QV8ParticleDataResource *r = v8_resource_cast<QV8ParticleDataResource>(args.This()); + + if (!r || !r->datum) + V8THROW_ERROR("Not a valid ParticleData object"); + + r->datum->lifeSpan = 0; //Don't kill(), because it could still be in the middle of being created + return v8::Undefined(); +} + +static v8::Handle<v8::Value> particleData_lifeLeft(const v8::Arguments &args) +{ + QV8ParticleDataResource *r = v8_resource_cast<QV8ParticleDataResource>(args.This()); + if (!r || !r->datum) + V8THROW_ERROR("Not a valid ParticleData object"); + + return v8::Number::New(r->datum->lifeLeft()); +} + +static v8::Handle<v8::Value> particleData_curSize(const v8::Arguments &args) +{ + QV8ParticleDataResource *r = v8_resource_cast<QV8ParticleDataResource>(args.This()); + if (!r || !r->datum) + V8THROW_ERROR("Not a valid ParticleData object"); + + return v8::Number::New(r->datum->curSize()); +} +#define COLOR_GETTER_AND_SETTER(VAR, NAME) static v8::Handle<v8::Value> particleData_get_ ## NAME (v8::Local<v8::String>, const v8::AccessorInfo &info) \ +{ \ + QV8ParticleDataResource *r = v8_resource_cast<QV8ParticleDataResource>(info.This()); \ + if (!r || !r->datum) \ + V8THROW_ERROR("Not a valid ParticleData object"); \ +\ + return v8::Number::New((r->datum->color. VAR )/255.0);\ +}\ +\ +static void particleData_set_ ## NAME (v8::Local<v8::String>, v8::Local<v8::Value> value, const v8::AccessorInfo &info)\ +{\ + QV8ParticleDataResource *r = v8_resource_cast<QV8ParticleDataResource>(info.This());\ + if (!r || !r->datum)\ + V8THROW_ERROR_SETTER("Not a valid ParticleData object");\ +\ + r->datum->color. VAR = qMin(255, qMax(0, (int)floor(value->NumberValue() * 255.0)));\ +} + + +#define SEMIBOOL_GETTER_AND_SETTER(VARIABLE) static v8::Handle<v8::Value> particleData_get_ ## VARIABLE (v8::Local<v8::String>, const v8::AccessorInfo &info) \ +{ \ + QV8ParticleDataResource *r = v8_resource_cast<QV8ParticleDataResource>(info.This()); \ + if (!r || !r->datum) \ + V8THROW_ERROR("Not a valid ParticleData object"); \ +\ + return v8::Boolean::New(r->datum-> VARIABLE);\ +}\ +\ +static void particleData_set_ ## VARIABLE (v8::Local<v8::String>, v8::Local<v8::Value> value, const v8::AccessorInfo &info)\ +{\ + QV8ParticleDataResource *r = v8_resource_cast<QV8ParticleDataResource>(info.This());\ + if (!r || !r->datum)\ + V8THROW_ERROR_SETTER("Not a valid ParticleData object");\ +\ + r->datum-> VARIABLE = value->BooleanValue() ? 1.0 : 0.0;\ +} + +#define FLOAT_GETTER_AND_SETTER(VARIABLE) static v8::Handle<v8::Value> particleData_get_ ## VARIABLE (v8::Local<v8::String>, const v8::AccessorInfo &info) \ +{ \ + QV8ParticleDataResource *r = v8_resource_cast<QV8ParticleDataResource>(info.This()); \ + if (!r || !r->datum) \ + V8THROW_ERROR("Not a valid ParticleData object"); \ +\ + return v8::Number::New(r->datum-> VARIABLE);\ +}\ +\ +static void particleData_set_ ## VARIABLE (v8::Local<v8::String>, v8::Local<v8::Value> value, const v8::AccessorInfo &info)\ +{\ + QV8ParticleDataResource *r = v8_resource_cast<QV8ParticleDataResource>(info.This());\ + if (!r || !r->datum)\ + V8THROW_ERROR_SETTER("Not a valid ParticleData object");\ +\ + r->datum-> VARIABLE = value->NumberValue();\ +} + +#define FAKE_FLOAT_GETTER_AND_SETTER(VARIABLE, GETTER, SETTER) static v8::Handle<v8::Value> particleData_get_ ## VARIABLE (v8::Local<v8::String>, const v8::AccessorInfo &info) \ +{ \ + QV8ParticleDataResource *r = v8_resource_cast<QV8ParticleDataResource>(info.This()); \ + if (!r || !r->datum) \ + V8THROW_ERROR("Not a valid ParticleData object"); \ +\ + return v8::Number::New(r->datum-> GETTER ());\ +}\ +\ +static void particleData_set_ ## VARIABLE (v8::Local<v8::String>, v8::Local<v8::Value> value, const v8::AccessorInfo &info)\ +{\ + QV8ParticleDataResource *r = v8_resource_cast<QV8ParticleDataResource>(info.This());\ + if (!r || !r->datum)\ + V8THROW_ERROR_SETTER("Not a valid ParticleData object");\ +\ + r->datum-> SETTER ( value->NumberValue() );\ +} + +#define REGISTER_ACCESSOR(FT, ENGINE, VARIABLE, NAME) FT ->PrototypeTemplate()->SetAccessor( v8::String::New( #NAME ), particleData_get_ ## VARIABLE , particleData_set_ ## VARIABLE , v8::External::Wrap(ENGINE)) + +COLOR_GETTER_AND_SETTER(r, red) +COLOR_GETTER_AND_SETTER(g, green) +COLOR_GETTER_AND_SETTER(b, blue) +COLOR_GETTER_AND_SETTER(a, alpha) +SEMIBOOL_GETTER_AND_SETTER(autoRotate) +SEMIBOOL_GETTER_AND_SETTER(update) +FLOAT_GETTER_AND_SETTER(x) +FLOAT_GETTER_AND_SETTER(y) +FLOAT_GETTER_AND_SETTER(t) +FLOAT_GETTER_AND_SETTER(lifeSpan) +FLOAT_GETTER_AND_SETTER(size) +FLOAT_GETTER_AND_SETTER(endSize) +FLOAT_GETTER_AND_SETTER(vx) +FLOAT_GETTER_AND_SETTER(vy) +FLOAT_GETTER_AND_SETTER(ax) +FLOAT_GETTER_AND_SETTER(ay) +FLOAT_GETTER_AND_SETTER(xx) +FLOAT_GETTER_AND_SETTER(xy) +FLOAT_GETTER_AND_SETTER(yx) +FLOAT_GETTER_AND_SETTER(yy) +FLOAT_GETTER_AND_SETTER(rotation) +FLOAT_GETTER_AND_SETTER(rotationSpeed) +FLOAT_GETTER_AND_SETTER(animIdx) +FLOAT_GETTER_AND_SETTER(frameDuration) +FLOAT_GETTER_AND_SETTER(frameCount) +FLOAT_GETTER_AND_SETTER(animT) +FLOAT_GETTER_AND_SETTER(r) +FAKE_FLOAT_GETTER_AND_SETTER(curX, curX, setInstantaneousX) +FAKE_FLOAT_GETTER_AND_SETTER(curVX, curVX, setInstantaneousVX) +FAKE_FLOAT_GETTER_AND_SETTER(curAX, curAX, setInstantaneousAX) +FAKE_FLOAT_GETTER_AND_SETTER(curY, curY, setInstantaneousY) +FAKE_FLOAT_GETTER_AND_SETTER(curVY, curVY, setInstantaneousVY) +FAKE_FLOAT_GETTER_AND_SETTER(curAY, curAY, setInstantaneousAY) + +QV8ParticleDataDeletable::QV8ParticleDataDeletable(QV8Engine *engine) +{ + v8::HandleScope handle_scope; + v8::Context::Scope scope(engine->context()); + + v8::Local<v8::FunctionTemplate> ft = v8::FunctionTemplate::New(); + ft->InstanceTemplate()->SetHasExternalResource(true); + ft->PrototypeTemplate()->Set(v8::String::New("discard"), V8FUNCTION(particleData_discard, engine)); + ft->PrototypeTemplate()->Set(v8::String::New("lifeLeft"), V8FUNCTION(particleData_lifeLeft, engine)); + ft->PrototypeTemplate()->Set(v8::String::New("currentSize"), V8FUNCTION(particleData_curSize, engine)); + REGISTER_ACCESSOR(ft, engine, x, initialX); + REGISTER_ACCESSOR(ft, engine, y, initialY); + REGISTER_ACCESSOR(ft, engine, t, t); + REGISTER_ACCESSOR(ft, engine, lifeSpan, lifeSpan); + REGISTER_ACCESSOR(ft, engine, size, startSize); + REGISTER_ACCESSOR(ft, engine, endSize, endSize); + REGISTER_ACCESSOR(ft, engine, vx, initialVX); + REGISTER_ACCESSOR(ft, engine, vy, initialVY); + REGISTER_ACCESSOR(ft, engine, ax, initialAX); + REGISTER_ACCESSOR(ft, engine, ay, initialAY); + REGISTER_ACCESSOR(ft, engine, xx, xDeformationVectorX); + REGISTER_ACCESSOR(ft, engine, xy, xDeformationVectorY); + REGISTER_ACCESSOR(ft, engine, yx, yDeformationVectorX); + REGISTER_ACCESSOR(ft, engine, yy, yDeformationVectorY); + REGISTER_ACCESSOR(ft, engine, rotation, rotation); + REGISTER_ACCESSOR(ft, engine, rotationSpeed, rotationSpeed); + REGISTER_ACCESSOR(ft, engine, autoRotate, autoRotate); + REGISTER_ACCESSOR(ft, engine, animIdx, animationIndex); + REGISTER_ACCESSOR(ft, engine, frameDuration, frameDuration); + REGISTER_ACCESSOR(ft, engine, frameCount, frameCount); + REGISTER_ACCESSOR(ft, engine, animT, animationT); + REGISTER_ACCESSOR(ft, engine, r, r); + REGISTER_ACCESSOR(ft, engine, update, update); + REGISTER_ACCESSOR(ft, engine, curX, x); + REGISTER_ACCESSOR(ft, engine, curVX, vx); + REGISTER_ACCESSOR(ft, engine, curAX, ax); + REGISTER_ACCESSOR(ft, engine, curY, y); + REGISTER_ACCESSOR(ft, engine, curVY, vy); + REGISTER_ACCESSOR(ft, engine, curAY, ay); + REGISTER_ACCESSOR(ft, engine, red, red); + REGISTER_ACCESSOR(ft, engine, green, green); + REGISTER_ACCESSOR(ft, engine, blue, blue); + REGISTER_ACCESSOR(ft, engine, alpha, alpha); + + constructor = qPersistentNew(ft->GetFunction()); +} + +QV8ParticleDataDeletable::~QV8ParticleDataDeletable() +{ + qPersistentDispose(constructor); +} + +V8_DEFINE_EXTENSION(QV8ParticleDataDeletable, particleV8Data); + + +QQuickV8ParticleData::QQuickV8ParticleData(QV8Engine* engine, QQuickParticleData* datum) +{ + if (!engine || !datum) + return; + v8::HandleScope handle_scope; + v8::Context::Scope scope(engine->context()); + + QV8ParticleDataDeletable *d = particleV8Data(engine); + m_v8Value = qPersistentNew(d->constructor->NewInstance()); + QV8ParticleDataResource *r = new QV8ParticleDataResource(engine); + r->datum = datum; + m_v8Value->SetExternalResource(r); +} + +QQuickV8ParticleData::~QQuickV8ParticleData() +{ + qPersistentDispose(m_v8Value); +} + +QDeclarativeV8Handle QQuickV8ParticleData::v8Value() +{ + return QDeclarativeV8Handle::fromHandle(m_v8Value); +} + +QT_END_NAMESPACE |