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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include <QBasicTimer>
#include <QList>
#include <QImage>
#include <QDir>
#include <QPainter>
#include <QPaintEvent>
#include <QDebug>
#include "slideshow.h"
class SlideShowPrivate
{
public:
SlideShowPrivate();
int currentSlide;
int slideInterval;
QBasicTimer interSlideTimer;
QStringList imagePaths;
void showNextSlide();
};
SlideShowPrivate::SlideShowPrivate()
{
currentSlide = 0;
slideInterval = 10000; // Default to 10 sec interval
}
void SlideShowPrivate::showNextSlide()
{
currentSlide++;
if (currentSlide >= imagePaths.size())
currentSlide = 0;
}
SlideShow::SlideShow(QWidget* parent) :
QWidget(parent)
{
d = new SlideShowPrivate;
setAttribute(Qt::WA_StaticContents, true);
setAttribute(Qt::WA_OpaquePaintEvent, true);
setAttribute(Qt::WA_NoSystemBackground, true);
setMouseTracking(true);
}
SlideShow::~SlideShow()
{
delete d;
}
void SlideShow::addImageDir(QString dirName)
{
QDir dir(dirName);
// lookup in directories
QStringList fileNames = dir.entryList(QDir::Files | QDir::Readable, QDir::Name);
for (int i=0; i<fileNames.count(); i++)
d->imagePaths << dir.absoluteFilePath(fileNames[i]);
// lookup in qrc
dir = QDir(QString(":/fluidlauncher/" + dirName));
fileNames = dir.entryList(QDir::Files | QDir::Readable, QDir::Name);
for (int i=0; i<fileNames.count(); i++)
d->imagePaths << dir.absoluteFilePath(fileNames[i]);
}
void SlideShow::addImage(QString filename)
{
d->imagePaths << filename;
}
void SlideShow::clearImages()
{
d->imagePaths.clear();
}
void SlideShow::startShow()
{
d->interSlideTimer.start(d->slideInterval, this);
d->showNextSlide();
update();
}
void SlideShow::stopShow()
{
d->interSlideTimer.stop();
}
int SlideShow::slideInterval()
{
return d->slideInterval;
}
void SlideShow::setSlideInterval(int val)
{
d->slideInterval = val;
}
void SlideShow::timerEvent(QTimerEvent* event)
{
Q_UNUSED(event);
d->showNextSlide();
update();
}
void SlideShow::paintEvent(QPaintEvent *event)
{
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing, false);
if (d->imagePaths.size() > 0) {
QPixmap slide = QPixmap(d->imagePaths[d->currentSlide]);
QSize slideSize = slide.size();
QSize scaledSize = QSize(qMin(slideSize.width(), size().width()),
qMin(slideSize.height(), size().height()));
if (slideSize != scaledSize)
slide = slide.scaled(scaledSize, Qt::KeepAspectRatio);
QRect pixmapRect(qMax( (size().width() - slide.width())/2, 0),
qMax( (size().height() - slide.height())/2, 0),
slide.width(),
slide.height());
if (pixmapRect.top() > 0) {
// Fill in top & bottom rectangles:
painter.fillRect(0, 0, size().width(), pixmapRect.top(), Qt::black);
painter.fillRect(0, pixmapRect.bottom(), size().width(), size().height(), Qt::black);
}
if (pixmapRect.left() > 0) {
// Fill in left & right rectangles:
painter.fillRect(0, 0, pixmapRect.left(), size().height(), Qt::black);
painter.fillRect(pixmapRect.right(), 0, size().width(), size().height(), Qt::black);
}
painter.drawPixmap(pixmapRect, slide);
} else
painter.fillRect(event->rect(), Qt::black);
}
void SlideShow::keyPressEvent(QKeyEvent* event)
{
Q_UNUSED(event);
emit inputReceived();
}
void SlideShow::mouseMoveEvent(QMouseEvent* event)
{
Q_UNUSED(event);
emit inputReceived();
}
void SlideShow::mousePressEvent(QMouseEvent* event)
{
Q_UNUSED(event);
emit inputReceived();
}
void SlideShow::mouseReleaseEvent(QMouseEvent* event)
{
Q_UNUSED(event);
emit inputReceived();
}
void SlideShow::showEvent(QShowEvent * event )
{
Q_UNUSED(event);
#ifndef QT_NO_CURSOR
setCursor(Qt::BlankCursor);
#endif
}
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