1 //=========================================== 2 // Lumina-DE source code 3 // Copyright (c) 2015, Ken Moore 4 // Available under the 3-clause BSD license 5 // See the LICENSE file for full details 6 //=========================================== 7 // This class is the sample plugin for a ScreenSaver animation 8 //=========================================== 9 #ifndef _LUMINA_DESKTOP_SCREEN_SAVER_FIREFLIES_ANIMATION_H 10 #define _LUMINA_DESKTOP_SCREEN_SAVER_FIREFLIES_ANIMATION_H 11 12 #include "global-includes.h" 13 #include "BaseAnimGroup.h" 14 #include <QSequentialAnimationGroup> 15 #include <QGraphicsOpacityEffect> 16 17 class Firefly : public QSequentialAnimationGroup{ 18 Q_OBJECT 19 private: 20 QWidget *fly; 21 QPropertyAnimation *movement, *flash; 22 int maxX, maxY; //maximum jitter in X/Y directions 23 QSize range; 24 private slots: LoopChanged()25 void LoopChanged(){ 26 //Adjust the movement animation a bit 27 movement->setStartValue(movement->endValue()); //start at the previous end point 28 QPoint pt = movement->startValue().toPoint(); 29 QPoint diff( (qrand()% maxX) - (maxX/2), (qrand()% maxY) - (maxY/2) ); 30 //Need to ensure it stays in the current box 31 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 32 else{ pt.setX( pt.x() + diff.x() ); } 33 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 34 else{ pt.setY( pt.y() + diff.y() ); } 35 movement->setEndValue(pt); 36 movement->setDuration( qrand() %500 + 1000); //between 1000->1500 ms animations for movements 37 //Adjust the flash duration/size a bit 38 flash->setDuration(qrand() %200 + 500); //500-700 ms 39 int sz = qrand()%4 + 4; //6-10 pixel square 40 //flash->setKeyValueAt(0.5, (qrand()%50) /100.0); 41 //fly->resize(sz,sz); 42 flash->setKeyValueAt(0.5, QSize(sz,sz)); //half-way point for the flash 43 44 fly->show(); 45 } stopped()46 void stopped(){ fly->hide(); } 47 48 public: Firefly(QWidget * parent)49 Firefly(QWidget *parent) : QSequentialAnimationGroup(parent){ 50 fly = new QWidget(parent); 51 range = parent->size(); 52 maxX = range.width()/4; maxY = range.height()/4; 53 QString B = QString::number(qrand()%70); 54 QString RY = QString::number(qrand()%200+50); 55 QString style = "background-color: qradialgradient(spread:pad, cx:0.5, cy:0.5, radius:0.5, fx:0.5, fy:0.5, stop:0 rgba(245, 245, 143, 200), stop:0.83871 rgba(%1, %1, %2, 140), stop:0.99 rgba(0, 0, 0, 255), stop:1 transparent);"; 56 fly->setStyleSheet(style.arg(RY, B) ); 57 //setup the movement animation 58 movement = new QPropertyAnimation(fly); 59 movement->setTargetObject(fly); 60 movement->setPropertyName("pos"); 61 movement->setEndValue( QPoint( qrand() % range.width(), qrand()%range.height()) ); //on anim start, this will become the starting point 62 //setup the flashing animation 63 /*QGraphicsOpacityEffect *eff = new QGraphicsOpacityEffect(parent); 64 fly->setGraphicsEffect(eff); 65 flash = new QPropertyAnimation(eff, "opacity");*/ 66 flash = new QPropertyAnimation(this); 67 flash->setTargetObject(fly); 68 flash->setPropertyName("size"); 69 flash->setStartValue(QSize(0,0)); 70 flash->setEndValue(flash->startValue()); 71 //fly->setProperty("opacity",0); 72 //flash->setPropertyName("opacity"); 73 //flash->setStartValue(0); 74 //flash->setEndValue(0); 75 //now setup the order of the animations 76 this->setLoopCount(100); //do this 100 times 77 //Roughly half the number of fireflies with start with movement/flash 78 if(qrand()%2 == 1){ 79 this->addAnimation(movement); 80 this->addAnimation(flash); 81 }else{ 82 this->addAnimation(flash); 83 this->addAnimation(movement); 84 } 85 //Start up this firefly 86 LoopChanged(); //load initial values 87 88 fly->setGeometry( QRect(movement->startValue().toPoint(), flash->startValue().toSize()) ); 89 connect(this, SIGNAL(currentLoopChanged(int)), this, SLOT(LoopChanged()) ); 90 connect(this, SIGNAL(finished()), this, SLOT(stopped()) ); 91 } ~Firefly()92 ~Firefly(){} 93 94 }; 95 96 class FirefliesAnimation : public BaseAnimGroup{ 97 Q_OBJECT 98 private: 99 QList<Firefly*> fireflies; 100 101 public: FirefliesAnimation(QWidget * parent)102 FirefliesAnimation(QWidget *parent) : BaseAnimGroup(parent){} ~FirefliesAnimation()103 ~FirefliesAnimation(){ 104 this->stop(); 105 //while(fireflies.length()>0){ fireflies.takeAt(0)->deleteLater(); } 106 } 107 LoadAnimations()108 void LoadAnimations(){ 109 while(fireflies.length()>0){ fireflies.takeAt(0)->deleteLater(); } 110 canvas->setStyleSheet("background: black;"); 111 int number = readSetting("number",qrand()%30 + 50).toInt(); 112 for(int i=0; i<number; i++){ 113 if(fireflies.length()>number){ continue; } 114 Firefly *tmp = new Firefly(canvas); 115 this->addAnimation(tmp); 116 fireflies << tmp; 117 } 118 119 } 120 121 }; 122 #endif 123