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//===========================================
// Lumina-DE source code
// Copyright (c) 2015, Ken Moore
// Available under the 3-clause BSD license
// See the LICENSE file for full details
//===========================================
#ifndef _LUMINA_DESKTOP_SCREEN_SAVER_GRAV_ANIMATION_H
#define _LUMINA_DESKTOP_SCREEN_SAVER_GRAV_ANIMATION_H
#define PI 3.1416
#include "global-includes.h"
#include "BaseAnimGroup.h"
#include <QSequentialAnimationGroup>
#include <cmath>
class Grav: public QSequentialAnimationGroup{
Q_OBJECT
private:
QWidget *planet;
QPropertyAnimation *movement;
QSize range;
private slots:
void LoopChanged(){
static double time = 0;
//Adjust the movement animation a bit
movement->setStartValue(movement->endValue()); //start at the previous end point
QPoint pt = movement->startValue().toPoint();
QPoint diff((cos(pt.x()) - cos(pt.x()+time)), (sin(pt.y()) - sin(pt.y() +time)) );
pt.setX( pt.x() + diff.x() );
pt.setY( pt.y() + diff.y() );
movement->setEndValue(pt);
movement->setDuration(2);
time+=0.01;
planet->show();
}
void stopped(){planet->hide(); }
public:
Grav(QWidget *parent) : QSequentialAnimationGroup(parent){
planet = new QWidget(parent);
range = parent->size();
planet->setStyleSheet("background-color: qradialgradient(spread:pad, cx:0.5, cy:0.5, radius:0.5, fx:0.5, fy:0.5, stop:0 rgba(215, 215, 143, 255), stop:0.83871 rgba(221, 235, 64, 140), stop:1 rgba(0, 0, 0, 255));");
//setup the movement animation
movement = new QPropertyAnimation(planet);
movement->setTargetObject(planet);
movement->setPropertyName("pos");
movement->setEndValue( QPoint( qrand() % range.width(), qrand()%range.height()) ); //on anim start, this will become the starting point
this->addAnimation(movement);
LoopChanged(); //load initial values
planet->setGeometry( QRect(movement->startValue().toPoint(), QSize(15, 15)));
connect(this, SIGNAL(currentLoopChanged(int)), this, SLOT(LoopChanged()) );
connect(this, SIGNAL(finished()), this, SLOT(stopped()) );
}
~Grav(){}
};
class GravAnimation : public BaseAnimGroup{
Q_OBJECT
private:
QList<Grav*> planets;
public:
GravAnimation(QWidget *parent, QSettings *set) : BaseAnimGroup(parent, set){}
~GravAnimation(){
this->stop();
}
void LoadAnimations(){
while(planets.length()>0){ planets.takeAt(0)->deleteLater(); }
canvas->setStyleSheet("background: black;");
int number = settings->value("planets/number",10).toInt();
for(int i=0; i<number; i++){
if(planets.length()>number){ continue; }
Grav *tmp = new Grav(canvas);
this->addAnimation(tmp);
planets << tmp;
}
while(planets.length()>number){planets.takeAt(number)->deleteLater(); }
}
};
#endif
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