Files
tenmon/imageringlist.cpp
T

608 lines
14 KiB
C++

#include "imageringlist.h"
#include <functional>
#include <QThreadPool>
#include <QDir>
#include <QSettings>
#include <QTimer>
#include <QRegularExpression>
#include "loadrunable.h"
#include "rawimage.h"
#include "database.h"
using namespace std;
int DEFAULT_WIDTH = 2;
Image::Image(const QString name, int number, ImageRingList *ringList) :
m_loading(false),
m_released(true),
m_current(false),
m_number(number),
m_name(name),
m_ringList(ringList)
{
}
void Image::load(int index, QThreadPool *pool)
{
if(index != m_info.index && !m_loading)
m_rawImage.reset();
if(!m_rawImage && !m_loading)
{
m_loading = true;
m_released = false;
pool->start(new LoadRunable(m_name, this, m_ringList->analyzeLevel(), index));
}
if(!m_loading && m_rawImage)
emit pixmapLoaded(this);
}
void Image::loadThumbnail(QThreadPool *pool)
{
if(!m_thumbnail)
pool->start(new LoadRunable(m_name, this, AnalyzeLevel::None, 0, true));
else
emit thumbnailLoaded(this);
}
void Image::release()
{
m_rawImage.reset();
m_released = true;
m_loading = false;
}
QString Image::name() const
{
return m_name;
}
std::shared_ptr<RawImage> Image::rawImage()
{
return m_rawImage;
}
const RawImage *Image::thumbnail() const
{
return m_thumbnail.get();
}
ImageInfoData Image::info() const
{
return m_info;
}
bool Image::isCurrent() const
{
return !m_released;
}
int Image::number() const
{
return m_number;
}
void Image::clearThumbnail()
{
m_thumbnail.reset();
}
bool Image::isLoading() const
{
return m_loading;
}
void Image::imageLoaded(std::shared_ptr<RawImage> rawImage, ImageInfoData info)
{
m_loading = false;
if(!m_released)
{
m_rawImage = rawImage;
m_info = info;
emit pixmapLoaded(this);
}
}
void Image::thumbnailLoadFinish(std::shared_ptr<RawImage> rawImage)
{
m_thumbnail = rawImage;
if(m_thumbnail)
emit thumbnailLoaded(this);
}
ImageRingList::ImageRingList(Database *database, const QStringList &nameFilter, QObject *parent) : QAbstractItemModel(parent)
, m_liveMode(false)
, m_analyzeLevel(None)
, m_database(database)
, m_nameFilter(nameFilter)
, m_fileSuffix(nameFilter)
{
connect(&m_fileSystemWatcher, &QFileSystemWatcher::directoryChanged, this, &ImageRingList::dirChanged);
m_nameFilter.replaceInStrings(QRegularExpression("^"), "*.");
m_loadPool = new QThreadPool(this);
m_loadPool->setThreadPriority(QThread::LowPriority);
m_thumbPool = new QThreadPool(this);
m_thumbPool->setThreadPriority(QThread::LowPriority);
m_slideShowTimer = new QTimer(this);
connect(m_slideShowTimer, &QTimer::timeout, this, static_cast<void (ImageRingList::*)()>(&ImageRingList::increment));
m_dirChangeDelay = new QTimer(this);
m_dirChangeDelay->setInterval(3000);
m_dirChangeDelay->setSingleShot(true);
connect(m_dirChangeDelay, &QTimer::timeout, this, &ImageRingList::reloadDir);
}
ImageRingList::~ImageRingList()
{
m_loadPool->clear();
m_thumbPool->clear();
m_loadPool->waitForDone();
m_thumbPool->waitForDone();
}
bool ImageRingList::setDir(const QString path, const QString &currentFile, bool recursive)
{
QDir dir(path);
if(dir.exists())
{
m_currentDir = path;
QStringList scannedDirs;
QStringList absolutePaths;
std::function<void(const QString&)> scanDir = [&](const QString &path)
{
QDir dir(path);
if(scannedDirs.contains(dir.canonicalPath()))return;
scannedDirs.append(dir.canonicalPath());
QDir::SortFlags sortFlags = m_liveMode ? QDir::Time : m_sort | QDir::IgnoreCase;
if(m_reversed)sortFlags |= QDir::Reversed;
if(recursive)
{
QStringList dirs = dir.entryList(QDir::Readable | QDir::Dirs | QDir::NoDotAndDotDot, sortFlags);
for(const QString &subdir : dirs)
scanDir(dir.absoluteFilePath(subdir));
}
QStringList list = dir.entryList(m_nameFilter, QDir::Files | QDir::Readable, sortFlags);
for(const QString &file : list)
{
absolutePaths.append(dir.absoluteFilePath(file));
}
};
scanDir(path);
//qDebug() << absolutePaths.size();
setFilesPrivate(absolutePaths, m_liveMode ? absolutePaths.first() : currentFile);
if(m_fileSystemWatcher.directories().size())
m_fileSystemWatcher.removePaths(m_fileSystemWatcher.directories());
m_fileSystemWatcher.addPath(path);
return true;
}
return false;
}
void ImageRingList::setFile(const QString &file)
{
if(!file.isEmpty())
{
QFileInfo info(file);
if(info.isDir())
setDir(file, QString(), true);
else
setDir(info.absolutePath(), file);
}
}
void ImageRingList::setFiles(QStringList files)
{
QRegularExpression reg("(" + m_fileSuffix.join("|") + ")");
files.removeIf([&reg](const QString &file){
QFileInfo info(file);
auto match = reg.match(info.suffix());
return !match.hasMatch() || !info.exists() || !info.isReadable() || !info.isFile();
});
setFilesPrivate(files);
}
ImagePtr ImageRingList::currentImage()
{
if(m_images.size())
return *m_currImage;
else
return 0;
}
QString ImageRingList::currentDir() const
{
return m_currentDir;
}
void ImageRingList::increment()
{
if(m_images.size())
{
//don't increment if current image was not loaded yet
if((*m_currImage)->isLoading())
return;
(*m_firstImage)->release();
m_firstImage = increment(m_firstImage);
m_currImage = increment(m_currImage);
(*m_currImage)->load(0, m_loadPool);
m_lastImage = increment(m_lastImage);
(*m_lastImage)->load(0, m_loadPool);
}
}
void ImageRingList::decrement()
{
if(m_images.size())
{
//don't decrement if current image was not loaded yet
if((*m_currImage)->isLoading())
return;
(*m_lastImage)->release();
m_firstImage = decrement(m_firstImage);
m_currImage = decrement(m_currImage);
(*m_currImage)->load(0, m_loadPool);
m_lastImage = decrement(m_lastImage);
(*m_firstImage)->load(0, m_loadPool);
}
}
void ImageRingList::prevSubImage()
{
if(m_images.size())
{
if((*m_currImage)->isLoading())
return;
int index = (*m_currImage)->info().index;
int num = (*m_currImage)->info().num;
if(num > 1)
(*m_currImage)->load(index == 0 ? num - 1 : index - 1, m_loadPool);
}
}
void ImageRingList::nextSubImage()
{
if(m_images.size())
{
if((*m_currImage)->isLoading())
return;
int index = (*m_currImage)->info().index;
int num = (*m_currImage)->info().num;
if(num > 1)
(*m_currImage)->load((index + 1) % num, m_loadPool);
}
}
void ImageRingList::setMarked()
{
QStringList files = m_database->getMarkedFiles();
files.removeIf([](const QString &file){
QFileInfo info(file);
return !info.exists() || !info.isReadable();
});
setFilesPrivate(files);
}
void ImageRingList::reloadImage()
{
if(*m_currImage)
{
int index = (*m_currImage)->info().index;
(*m_currImage)->release();
(*m_currImage)->load(index, m_loadPool);
}
}
void ImageRingList::setLiveMode(bool live)
{
m_liveMode = live;
}
void ImageRingList::setCalculateStats(bool stats)
{
m_analyzeLevel = stats ? Statistics : None;
}
void ImageRingList::setFindPeaks(bool findPeaks)
{
m_analyzeLevel = findPeaks ? Peaks : None;
}
void ImageRingList::setFindStars(bool findStars)
{
m_analyzeLevel = findStars ? Stars : None;
}
AnalyzeLevel ImageRingList::analyzeLevel() const
{
return m_analyzeLevel;
}
void ImageRingList::loadFile(int row)
{
if(row < m_images.size())
{
int diff = m_currImage != m_images.end() ? row - (m_currImage - m_images.begin()) : -100;
if(diff == 1)
increment();
else if(diff == -1)
decrement();
else
{
m_firstImage = m_currImage = m_lastImage = m_images.begin()+row;
if(m_images.empty())
return;
(*m_currImage)->load(0, m_loadPool);
m_width = DEFAULT_WIDTH<m_images.size()/2 ? DEFAULT_WIDTH : m_images.size()/2;
if(m_liveMode)
m_width = 0;
for(int i=0; i<m_width; i++)
{
m_firstImage = decrement(m_firstImage);
(*m_firstImage)->load(0, m_loadPool);
m_lastImage = increment(m_lastImage);
(*m_lastImage)->load(0, m_loadPool);
}
if(m_lastImage != m_firstImage)
{
QList<ImagePtr>::iterator iter = increment(m_lastImage);
while(m_firstImage != iter)
{
(*iter)->release();
iter = increment(iter);
}
}
}
}
}
void ImageRingList::loadThumbnails()
{
for(auto &img : m_images)
{
img->loadThumbnail(m_thumbPool);
}
}
void ImageRingList::stopLoading()
{
m_thumbPool->clear();
m_thumbPool->waitForDone();
}
int ImageRingList::imageCount() const
{
return m_images.size();
}
QStringList ImageRingList::imageNames() const
{
QStringList ret;
for(auto &img : m_images)
ret.push_back(img->name());
return ret;
}
void ImageRingList::updateMark()
{
if(m_images.size())
{
QModelIndex idx = index(m_currImage - m_images.begin(), 0);
emit dataChanged(idx, idx, {Qt::FontRole});
}
}
void ImageRingList::clearThumbnails()
{
for(auto &img : m_images)
img->clearThumbnail();
}
QModelIndex ImageRingList::index(int row, int column, const QModelIndex &parent) const
{
Q_UNUSED(parent);
return createIndex(row, column, m_images.at(row).get());
}
QModelIndex ImageRingList::parent(const QModelIndex &child) const
{
Q_UNUSED(child);
return QModelIndex();
}
int ImageRingList::rowCount(const QModelIndex &parent) const
{
if(parent == QModelIndex())
return m_images.size();
else
return 0;
}
int ImageRingList::columnCount(const QModelIndex &parent) const
{
Q_UNUSED(parent);
return 1;
}
QVariant ImageRingList::data(const QModelIndex &index, int role) const
{
switch(role)
{
case Qt::DisplayRole:
{
QFileInfo info(m_images.at(index.row())->name());
return info.fileName();
}
case Qt::FontRole:
{
bool marked = m_database->isMarked(m_images.at(index.row())->name());
QFont font;
font.setBold(marked);
return font;
}
default:
return QVariant();
}
}
QVariant ImageRingList::headerData(int section, Qt::Orientation orientation, int role) const
{
if(section==0 && orientation==Qt::Horizontal && role==Qt::DisplayRole)
{
return tr("Name");
}
return QVariant();
}
void ImageRingList::setPreload(int width)
{
DEFAULT_WIDTH = width;
if(m_images.size() == 0)return;
int newWidth = DEFAULT_WIDTH<m_images.size()/2 ? DEFAULT_WIDTH : m_images.size()/2;
if(newWidth > m_width)
{
for(int i = newWidth - m_width; i>0; i--)
{
m_firstImage = decrement(m_firstImage);
(*m_firstImage)->load(0, m_loadPool);
m_lastImage = increment(m_lastImage);
(*m_lastImage)->load(0, m_loadPool);
}
}
if(newWidth < m_width)
{
for(int i = m_width - newWidth; i>0; i--)
{
(*m_firstImage)->release();
m_firstImage = increment(m_firstImage);
(*m_lastImage)->release();
m_lastImage = decrement(m_lastImage);
}
}
m_width = newWidth;
}
void ImageRingList::setSort(QDir::SortFlag sort)
{
if(m_sort != sort)
{
m_sort = sort;
if(m_images.size())
{
QString path = (*m_currImage)->name();
setFile(path);
}
}
}
void ImageRingList::reverseSort()
{
m_reversed = !m_reversed;
if(m_images.size())
{
QString path = (*m_currImage)->name();
setFile(path);
}
}
void ImageRingList::toggleSlideshow(bool start)
{
if(start)
{
QSettings settings;
int time = settings.value("settings/slideshowtime", 1.0).toDouble() * 1000;
m_slideShowTimer->start(time);
}
else
{
m_slideShowTimer->stop();
}
}
void ImageRingList::setFilesPrivate(const QStringList files, const QString &currentFile)
{
m_loadPool->clear();
m_thumbPool->clear();
m_loadPool->waitForDone();
m_thumbPool->waitForDone();
beginResetModel();
m_images.clear();
int i = 0;
for(const QString &file : files)
{
ImagePtr ptr = make_shared<Image>(file, i++, this);
connect(ptr.get(), &Image::pixmapLoaded, this, &ImageRingList::imageLoaded);
connect(ptr.get(), &Image::thumbnailLoaded, this, &ImageRingList::thumbnailLoaded);
m_images.append(ptr);
}
int index = files.indexOf(currentFile);
if(index < 0)
index = 0;
endResetModel();
m_currImage = m_images.end();
loadFile(index);
}
QList<ImagePtr>::iterator ImageRingList::increment(QList<ImagePtr>::iterator iter)
{
iter++;
if(iter == m_images.end())
iter = m_images.begin();
return iter;
}
QList<ImagePtr>::iterator ImageRingList::decrement(QList<ImagePtr>::iterator iter)
{
if(iter == m_images.begin())
iter = m_images.end();
iter--;
return iter;
}
void ImageRingList::imageLoaded(Image *image)
{
if(image->name() == (*m_currImage)->name())
{
emit pixmapLoaded(image);
emit infoLoaded(image->info());
emit currentImageChanged(m_currImage-m_images.begin());
}
}
void ImageRingList::dirChanged(QString)
{
if(m_liveMode)
reloadDir();
else
m_dirChangeDelay->start();
}
void ImageRingList::reloadDir()
{
QString currentFile;
if(m_images.size())
currentFile = (*m_currImage)->name();
setDir(m_currentDir, currentFile);
if(m_images.size())
emit currentImageChanged(m_currImage-m_images.begin());
}