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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_TEXT_ANIMATION_H
#define _LUMINA_DESKTOP_SCREEN_SAVER_TEXT_ANIMATION_H
#include "global-includes.h"
#include "BaseAnimGroup.h"
#include <QParallelAnimationGroup>
#include <QtMath>
#include <unistd.h>
class Text: public QParallelAnimationGroup{
Q_OBJECT
private:
QLabel *text;
QPropertyAnimation *movement;
QSize range;
QPoint v;
bool bounce;
private slots:
void LoopChanged(){
movement->setStartValue(movement->endValue());
QPoint currLoc = movement->startValue().toPoint();
bounce = !(currLoc.y() < 100 or currLoc.y() > range.height()-100 or currLoc.x() > range.width()-100 or currLoc.x() < 100);
if((currLoc.y() < 10 or currLoc.y() > range.height()-40) and !bounce) {
v.setY((v.y() * -1) + (qrand() % 20 - 10));
}else if((currLoc.x() > range.width()-10 or currLoc.x() < 10) and !bounce) {
v.setX((v.x() * -1) + (qrand() % 20 - 10));
}
currLoc.setX(currLoc.x() + v.x());
currLoc.setY(currLoc.y() + v.y());
movement->setEndValue(currLoc);
}
void stopped(){ qDebug() << "Text Stopped"; text->hide();}
public:
Text(QWidget *parent, QString display) : QParallelAnimationGroup(parent){
text = new QLabel(parent);
range = parent->size();
QPoint center = QRect( QPoint(0,0), parent->size()).center();
QString color = "rgba(" + QString::number(qrand() % 206 + 50) + ", " + QString::number(qrand() % 206 + 50) + ", " + QString::number(qrand() % 206 + 50);
text->setStyleSheet("QLabel {background-color: transparent; color: " + color + "); }");
text->setFont(QFont("Courier", 24, QFont::Bold));
text->setText(display);
QFontMetrics metrics(text->font());
text->setMinimumSize(QSize( metrics.horizontalAdvance(text->text())+10, metrics.height()*text->text().count("\n") +10));
movement = new QPropertyAnimation(text);
movement->setPropertyName("pos");
movement->setTargetObject(text);
this->addAnimation(movement);
text->show();
v.setX((qrand() % 100 + 50) * qPow(-1, qrand() % 2));
v.setY((qrand() % 100 + 50) * qPow(-1, qrand() % 2));
movement->setStartValue(center);
//Ensures the screensaver will not stop until the user wishes to login or it times out
this->setLoopCount(200); //number of wall bounces
movement->setDuration(200);
movement->setEndValue(QPoint(qrand() % (int)range.height(), qrand() % range.width()));
LoopChanged(); //load initial values
connect(this, SIGNAL(currentLoopChanged(int)), this, SLOT(LoopChanged()) );
connect(this, SIGNAL(finished()), this, SLOT(stopped()) );
}
~Text(){}
};
class TextAnimation : public BaseAnimGroup{
Q_OBJECT
public:
TextAnimation(QWidget *parent) : BaseAnimGroup(parent){}
~TextAnimation(){
this->stop();
}
void LoadAnimations(){
canvas->setStyleSheet("background: black;");
//Read off the text that needs to be displayed
QString textToShow = readSetting("text", "").toString();
if(textToShow.isEmpty()){
char hname[300];
gethostname(hname, 300);
textToShow = QString::fromLocal8Bit(hname);
}
// Now create the animation
Text *tmp = new Text(canvas, textToShow);
this->addAnimation(tmp);
}
};
#endif
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