//=========================================== // Lumina-DE source code // Copyright (c) 2015, Ken Moore // Available under the 3-clause BSD license // See the LICENSE file for full details //=========================================== // This class is the sample plugin for a ScreenSaver animation //=========================================== #ifndef _LUMINA_DESKTOP_SCREEN_SAVER_FIREFLIES_ANIMATION_H #define _LUMINA_DESKTOP_SCREEN_SAVER_FIREFLIES_ANIMATION_H #include "global-includes.h" #include "BaseAnimGroup.h" #include <QSequentialAnimationGroup> class Firefly : public QSequentialAnimationGroup{ Q_OBJECT private: QWidget *fly; QPropertyAnimation *movement, *flash; int maxX, maxY; //maximum jitter in X/Y directions QSize range; private slots: void LoopChanged(){ //Adjust the movement animation a bit movement->setStartValue(movement->endValue()); //start at the previous end point QPoint pt = movement->startValue().toPoint(); QPoint diff( (qrand()% maxX) - (maxX/2), (qrand()% maxY) - (maxY/2) ); //Need to ensure it stays in the current box if( (pt.x()+diff.x()) < 0 || (pt.x()+diff.x())>range.width()){ pt.setX(pt.x() - diff.x()); } //reverse the direction - otherwise will go out of bounds else{ pt.setX( pt.x() + diff.x() ); } if( (pt.y()+diff.y()) < 0 || (pt.y()+diff.y())>range.height()){ pt.setY(pt.y() - diff.y()); } //reverse the direction - otherwise will go out of bounds else{ pt.setY( pt.y() + diff.y() ); } movement->setEndValue(pt); movement->setDuration( qrand() %500 + 1000); //between 1000->1500 ms animations for movements //Adjust the flash duration/size a bit flash->setDuration(qrand() %300 + 700); //700-1000 ms int sz = qrand()%4 + 6; //6-10 pixel square flash->setKeyValueAt(0.5, QSize(sz,sz)); //half-way point for the flash fly->show(); } void stopped(){ fly->hide(); } public: Firefly(QWidget *parent) : QSequentialAnimationGroup(parent){ fly = new QWidget(parent); range = parent->size(); maxX = range.width()/4; maxY = range.height()/4; fly->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(fly); movement->setTargetObject(fly); movement->setPropertyName("pos"); movement->setEndValue( QPoint( qrand() % range.width(), qrand()%range.height()) ); //on anim start, this will become the starting point //setup the flashing animation flash = new QPropertyAnimation(fly); flash->setTargetObject(fly); flash->setPropertyName("size"); flash->setStartValue(QSize(2,2)); flash->setEndValue(flash->startValue()); //now setup the order of the animations this->setLoopCount(100); //do this 100 times this->addAnimation(movement); this->addAnimation(flash); //Start up this firefly LoopChanged(); //load initial values fly->setGeometry( QRect(movement->startValue().toPoint(), flash->startValue().toSize()) ); connect(this, SIGNAL(currentLoopChanged(int)), this, SLOT(LoopChanged()) ); connect(this, SIGNAL(finished()), this, SLOT(stopped()) ); } ~Firefly(){} }; class FirefliesAnimation : public BaseAnimGroup{ Q_OBJECT private: QList<Firefly*> fireflies; public: FirefliesAnimation(QWidget *parent, QSettings *set) : BaseAnimGroup(parent, set){} ~FirefliesAnimation(){ this->stop(); //while(fireflies.length()>0){ fireflies.takeAt(0)->deleteLater(); } } void LoadAnimations(){ while(fireflies.length()>0){ fireflies.takeAt(0)->deleteLater(); } canvas->setStyleSheet("background: black;"); int number = settings->value("fireflies/number",100).toInt(); for(int i=0; i<number; i++){ if(fireflies.length()>number){ continue; } Firefly *tmp = new Firefly(canvas); this->addAnimation(tmp); fireflies << tmp; } while( fireflies.length()>number){ fireflies.takeAt(number)->deleteLater(); } } }; #endif