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ThumbsViewer.cpp
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/*
* Copyright (C) 2013-2014 Ofer Kashayov <oferkv@live.com>
* This file is part of Phototonic Image Viewer.
*
* Phototonic is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Phototonic is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Phototonic. If not, see <http://www.gnu.org/licenses/>.
*/
#include <QApplication>
#include <QCollator>
#include <QColorSpace>
#include <QDirIterator>
#include <QCryptographicHash>
#include <QDrag>
#include <QImageReader>
#include <QLabel>
#include <QMimeData>
#include <QMimeDatabase>
#include <QMouseEvent>
#include <QPainter>
#include <QPen>
#include <QProgressDialog>
#include <QScrollBar>
#include <QStandardItemModel>
#include <QStandardPaths>
#include <QThread>
#include <QTimer>
#include <QTreeWidget>
#include <cmath>
#include "MetadataCache.h"
#include "Settings.h"
#include "SmartCrop.h"
#include "Tags.h"
#include "ThumbsViewer.h"
#define BATCH_SIZE 10
ThumbsViewer::ThumbsViewer(QWidget *parent) : QListView(parent) {
m_busy = false;
Settings::thumbsBackgroundColor = Settings::value(Settings::optionThumbsBackgroundColor).value<QColor>();
Settings::thumbsTextColor = Settings::value(Settings::optionThumbsTextColor).value<QColor>();
setThumbColors();
Settings::thumbsPagesReadCount = Settings::value(Settings::optionThumbsPagesReadCount).toUInt();
thumbSize = Settings::value(Settings::optionThumbsZoomLevel).toInt();
setViewMode(QListView::IconMode);
setSelectionMode(QAbstractItemView::ExtendedSelection);
setResizeMode(QListView::Adjust);
setWordWrap(true);
setWrapping(true);
setDragEnabled(true);
setEditTriggers(QAbstractItemView::NoEditTriggers);
setUniformItemSizes(false);
// This is the default but set for clarity. Could make it configurable to use
// QAbstractItemView::ScrollPerPixel instead.
setVerticalScrollMode(QAbstractItemView::ScrollPerPixel);
m_model = new QStandardItemModel(this);
m_model->setSortRole(SortRole);
setModel(m_model);
m_selectionChangedTimer.setInterval(10);
m_selectionChangedTimer.setSingleShot(true);
connect(&m_selectionChangedTimer, &QTimer::timeout, this, &ThumbsViewer::onSelectionChanged);
connect(this->selectionModel(), &QItemSelectionModel::selectionChanged, this, [=]() {
if (!m_selectionChangedTimer.isActive()) {
m_selectionChangedTimer.start();
}
});
m_loadThumbTimer.setInterval(250);
m_loadThumbTimer.setSingleShot(true);
connect(&m_loadThumbTimer, &QTimer::timeout, [=](){ loadVisibleThumbs(verticalScrollBar()->value()); });
emptyImg.load(":/images/no_image.png");
}
void ThumbsViewer::setThumbColors() {
QColor background = Settings::thumbsLayout == Squares ? Qt::transparent : Settings::thumbsBackgroundColor;
QPalette pal = palette();
pal.setColor(QPalette::Base, background);
pal.setColor(QPalette::Text, Settings::thumbsTextColor);
if (!Settings::thumbsBackgroundImage.isEmpty()) {
QImage bgImg(Settings::thumbsBackgroundImage);
pal.setBrush(QPalette::Base, bgImg);
}
setPalette(pal);
}
QString ThumbsViewer::getSingleSelectionFilename() {
if (selectionModel()->selectedIndexes().size() == 1)
return m_model->item(selectionModel()->selectedIndexes().first().row())->data(FileNameRole).toString();
return ("");
}
QString ThumbsViewer::fullPathOf(int idx)
{
return m_model->item(idx)->data(FileNameRole).toString();
}
QIcon ThumbsViewer::icon(int idx)
{
QIcon icon = m_model->item(idx)->icon();
if (icon.isNull() && loadThumb(idx, true))
icon = m_model->item(idx)->icon();
return icon;
}
int ThumbsViewer::getNextRow() {
if (currentIndex().row() == m_model->rowCount() - 1) {
return -1;
}
return currentIndex().row() + 1;
}
int ThumbsViewer::getPrevRow() {
if (currentIndex().row() == 0) {
return -1;
}
return currentIndex().row() - 1;
}
bool ThumbsViewer::setCurrentIndex(const QString &fileName) {
if (!m_model->rowCount()) {
m_desiredThumbPath = fileName;
return true;
}
QModelIndexList indexList = m_model->match(m_model->index(0, 0), FileNameRole, fileName);
if (indexList.size()) {
setCurrentIndex(indexList.at(0));
return true;
}
return false;
}
bool ThumbsViewer::setCurrentIndex(int row) {
QModelIndex idx = m_model->indexFromItem(m_model->item(row));
if (idx.isValid()) {
setCurrentIndex(idx);
return true;
}
return false;
}
void ThumbsViewer::currentChanged(const QModelIndex ¤t, const QModelIndex &previous) {
QListView::currentChanged(current, previous);
emit currentIndexChanged(current);
}
void ThumbsViewer::onSelectionChanged() {
if (Settings::setWindowIcon) {
window()->setWindowIcon(QApplication::windowIcon());
}
QModelIndexList indexesList = selectionModel()->selectedIndexes();
int selectedThumbs = indexesList.size();
if (selectedThumbs > 0) {
int currentRow = indexesList.first().row();
QString thumbFullPath = m_model->item(currentRow)->data(FileNameRole).toString();
if (Settings::setWindowIcon) {
window()->setWindowIcon(m_model->item(currentRow)->icon().pixmap(WINDOW_ICON_SIZE));
}
}
if (imageTags->isVisible() && imageTags->currentDisplayMode == SelectionTagsDisplay) {
imageTags->showSelectedImagesTags();
}
if (selectedThumbs >= 1) {
emit status(tr("Selected %1 of %n image(s)", "", m_model->rowCount()).arg(QString::number(selectedThumbs)));
} else if (!selectedThumbs) {
updateThumbsCount();
}
}
QStringList ThumbsViewer::getSelectedThumbsList() {
QModelIndexList indexesList = selectionModel()->selectedIndexes();
QStringList SelectedThumbsPaths;
for (int tn = indexesList.size() - 1; tn >= 0; --tn) {
SelectedThumbsPaths << m_model->item(indexesList[tn].row())->data(FileNameRole).toString();
}
return SelectedThumbsPaths;
}
void ThumbsViewer::startDrag(Qt::DropActions) {
QModelIndexList indexesList = selectionModel()->selectedIndexes();
if (indexesList.isEmpty()) {
return;
}
QDrag *drag = new QDrag(this);
QMimeData *mimeData = new QMimeData;
QList<QUrl> urls;
for (QModelIndexList::const_iterator it = indexesList.constBegin(),
end = indexesList.constEnd(); it != end; ++it) {
urls << QUrl::fromLocalFile(m_model->item(it->row())->data(FileNameRole).toString());
}
mimeData->setUrls(urls);
drag->setMimeData(mimeData);
QPixmap pix;
if (indexesList.count() > 1) {
pix = QPixmap(128, 112);
pix.fill(Qt::transparent);
QPainter painter(&pix);
painter.setBrush(Qt::NoBrush);
painter.setPen(QPen(Qt::white, 2));
int x = 0, y = 0, xMax = 0, yMax = 0;
for (int i = 0; i < qMin(5, indexesList.count()); ++i) {
QPixmap pix = m_model->item(indexesList.at(i).row())->icon().pixmap(72);
if (i == 4) {
x = (xMax - pix.width()) / 2;
y = (yMax - pix.height()) / 2;
}
painter.drawPixmap(x, y, pix);
xMax = qMax(xMax, qMin(128, x + pix.width()));
yMax = qMax(yMax, qMin(112, y + pix.height()));
painter.drawRect(x + 1, y + 1, qMin(126, pix.width() - 2), qMin(110, pix.height() - 2));
x = !(x == y) * 56;
y = !y * 40;
}
painter.end();
pix = pix.copy(0, 0, xMax, yMax);
drag->setPixmap(pix);
} else {
pix = m_model->item(indexesList.at(0).row())->icon().pixmap(128);
drag->setPixmap(pix);
}
drag->setHotSpot(QPoint(pix.width() / 2, pix.height() / 2));
drag->exec(Qt::CopyAction | Qt::MoveAction | Qt::LinkAction, Qt::IgnoreAction);
}
void ThumbsViewer::abort(bool permanent) {
if (!m_busy)
return;
isAbortThumbsLoading = true;
if (!isClosing && permanent) {
isClosing = true;
}
}
void ThumbsViewer::loadVisibleThumbs(int scrollBarValue) {
// Hack:
// when a paint even is requested Qt first calls updateGeometry() on
// everything.
// qscrollbar emits valueChanged() in its updateGeometry(), leading to us
// possibly recursing when calling processEvents.
static bool processing = false;
if (processing) {
return;
}
processing = true;
static int lastScrollBarValue = 0;
if (scrollBarValue >= 0) {
scrolledForward = (scrollBarValue >= lastScrollBarValue);
lastScrollBarValue = scrollBarValue;
} else {
loadThumbsRange();
processing = false;
return;
}
for (;;) {
int firstVisible = firstVisibleThumb();
int lastVisible = lastVisibleThumb();
if (isAbortThumbsLoading || firstVisible < 0 || lastVisible < 0) {
processing = false;
return;
}
if (scrolledForward) {
lastVisible += ((lastVisible - firstVisible) * (Settings::thumbsPagesReadCount + 1));
if (lastVisible >= m_model->rowCount()) {
lastVisible = m_model->rowCount() - 1;
}
} else {
firstVisible -= (lastVisible - firstVisible) * (Settings::thumbsPagesReadCount + 1);
if (firstVisible < 0) {
firstVisible = 0;
}
lastVisible += 10;
if (lastVisible >= m_model->rowCount()) {
lastVisible = m_model->rowCount() - 1;
}
}
if (thumbsRangeFirst == firstVisible && thumbsRangeLast == lastVisible) {
processing = false;
return;
}
thumbsRangeFirst = firstVisible;
thumbsRangeLast = lastVisible;
loadThumbsRange();
if (isAbortThumbsLoading) {
processing = false;
break;
}
}
processing = false;
}
int ThumbsViewer::firstVisibleThumb() {
for (int currThumb = 0; currThumb < m_model->rowCount(); ++currThumb) {
const QModelIndex idx = m_model->indexFromItem(m_model->item(currThumb));
if (viewport()->rect().contains(QPoint(0, visualRect(idx).bottom() + 1))) {
return idx.row();
}
}
return -1;
}
int ThumbsViewer::lastVisibleThumb() {
for (int currThumb = m_model->rowCount() - 1; currThumb >= 0; --currThumb) {
const QModelIndex idx = m_model->indexFromItem(m_model->item(currThumb));
if (viewport()->rect().contains(QPoint(0, visualRect(idx).y() + 1))) {
return idx.row();
}
}
return -1;
}
void ThumbsViewer::loadFileList() {
for (int i = 0; i < Settings::filesList.size(); i++) {
addThumb(Settings::filesList.at(i));
}
updateThumbsCount();
if (imageTags->isVisible())
QTimer::singleShot(500, this, [=]() { if (imageTags->isVisible()) imageTags->populateTagsTree(); });
if (!m_desiredThumbPath.isEmpty()) {
setCurrentIndex(m_desiredThumbPath);
m_desiredThumbPath.clear();
scrollTo(currentIndex());
} else if (thumbFileInfoList.size() && selectionModel()->selectedIndexes().size() == 0) {
setCurrentIndex(0);
}
}
void ThumbsViewer::reLoad() {
if (m_busy) {
abort();
QTimer::singleShot(50, this, [=]() { reLoad(); });
return;
}
static QTimer *scrollDelay = nullptr;
if (!scrollDelay) {
scrollDelay = new QTimer(this);
scrollDelay->setInterval(150);
scrollDelay->setSingleShot(true);
connect(scrollDelay, &QTimer::timeout, [=]() { loadVisibleThumbs(verticalScrollBar()->value()); });
}
scrollDelay->stop();
disconnect(verticalScrollBar(), SIGNAL(valueChanged(int)), scrollDelay, SLOT(start()));
m_busy = true;
histFiles.clear(); // these can grow out of control and currently sort O(n^2)
histograms.clear();
m_histSorted = false;
loadPrepare();
if (Settings::isFileListLoaded) {
loadFileList();
m_busy = false;
return;
}
applyFilter();
initThumbs();
updateThumbsCount();
loadVisibleThumbs();
if (Settings::includeSubDirectories) {
loadSubDirectories();
}
m_busy = false;
connect(verticalScrollBar(), SIGNAL(valueChanged(int)), scrollDelay, SLOT(start()));
}
void ThumbsViewer::loadSubDirectories() {
QDirIterator dirIterator(Settings::currentDirectory, QDirIterator::Subdirectories);
int processed = 0;
while (dirIterator.hasNext()) {
dirIterator.next();
if (dirIterator.fileInfo().isDir() && dirIterator.fileName() != "." && dirIterator.fileName() != "..") {
thumbsDir.setPath(dirIterator.filePath());
initThumbs();
updateThumbsCount();
loadVisibleThumbs();
if (isAbortThumbsLoading) {
return;
}
}
if (++processed > BATCH_SIZE) {
QApplication::processEvents();
processed = 0;
}
}
onSelectionChanged();
}
bool ThumbsViewer::setFilter(const QString &filter, QString *error) {
QStringList tokens = filter.split('/');
m_filter = tokens.first().trimmed();
m_constraints.clear();
bool sane = true;
for (int i = 1; i < tokens.size(); ++i) {
m_constraints.append(Constraint());
QStringList subtokens = tokens.at(i).split(' ', Qt::SkipEmptyParts);
char side = 0;
for (QString t : subtokens) {
if (t.startsWith("<")) {
side = side ? -1 : 1; t.remove(0,1);
} else if (t.startsWith("=")) {
side = side ? -1 : 3; t.remove(0,1);
} else if (t.startsWith(">")) {
side = side ? -1 : 2; t.remove(0,1);
}
if (side < 0) {
sane = false;
if (error)
*error += "Invalid sequence: " + tokens.at(i) + "\n";
break;
}
if (side == 0)
side = 3;
if (t.isEmpty())
continue;
auto setSizeConstraint = [=](int multiplier) {
bool ok;
qint64 v = t.chopped(2).toFloat(&ok) * multiplier;
if (!ok) { if (error) *error += "Invalid value: " + t + "\n"; return false; }
if (side & 1) m_constraints.last().smaller = v;
if (side & 2) m_constraints.last().bigger = v;
if ((side & 3) == 3) {
m_constraints.last().smaller = v * 101 / 100;
m_constraints.last().bigger = v * 99 / 100;
}
return true;
};
auto setAgeConstraint = [=](int multiplier) {
bool ok;
qint64 v = t.chopped(1).toFloat(&ok) * multiplier;
if (!ok) { if (error) *error += "Invalid value: " + t + "\n"; return false; }
if (side & 1) m_constraints.last().younger = v;
if (side & 2) m_constraints.last().older = v;
if ((side & 3) == 3) {
m_constraints.last().younger = v * 101 / 100;
m_constraints.last().older = v * 99 / 100;
}
return true;
};
if (t.endsWith("kb", Qt::CaseInsensitive)) {
if (!setSizeConstraint(1024)) { sane = false; break; }
} else if (t.endsWith("mb", Qt::CaseInsensitive)) {
if (!setSizeConstraint(1024*1024)) { sane = false; break; }
} else if (t.endsWith("gb", Qt::CaseInsensitive)) {
if (!setSizeConstraint(1024*1024*1024)) { sane = false; break; }
} else if (t.endsWith("m", Qt::CaseSensitive)) {
if (!setAgeConstraint(60)) { sane = false; break; }
} else if (t.endsWith("h", Qt::CaseInsensitive)) {
if (!setAgeConstraint(60*60)) { sane = false; break; }
} else if (t.endsWith("d", Qt::CaseInsensitive)) {
if (!setAgeConstraint(24*60*60)) { sane = false; break; }
} else if (t.endsWith("w", Qt::CaseInsensitive)) {
if (!setAgeConstraint(7*24*60*60)) { sane = false; break; }
} else if (t.endsWith("M", Qt::CaseInsensitive)) {
if (!setAgeConstraint(30*24*60*60)) { sane = false; break; }
} else if (t.endsWith("y", Qt::CaseInsensitive)) {
if (!setAgeConstraint(365*24*60*60)) { sane = false; break; }
} else if (t.endsWith("mp", Qt::CaseInsensitive)) {
bool ok;
qint64 v = t.chopped(2).toFloat(&ok) * 1000*1000;
if (!ok) {
if (error) { *error += "Invalid value: " + t + "\n"; } sane = false; break;
}
if (side & 1) m_constraints.last().maxPix = v;
if (side & 2) m_constraints.last().minPix = v;
if ((side & 3) == 3) {
m_constraints.last().maxPix = v * 101 / 100;
m_constraints.last().minPix = v * 99 / 100;
}
} else if (t.contains("x", Qt::CaseInsensitive)) {
QStringList st = t.split('x', Qt::KeepEmptyParts, Qt::CaseInsensitive);
if (st.size() != 2) {
if (error) { *error += "Invalid value: " + t + "\n"; } sane = false; break;
}
QSize sz(0,0); bool ok; int v;
v = st.at(0).toInt(&ok);
if (ok) sz.setWidth(v);
v = st.at(1).toInt(&ok);
if (ok) sz.setHeight(v);
if (sz.isNull()) {
if (error) { *error += "Invalid value: " + t + "\n"; } sane = false; break;
}
if (side & 1) m_constraints.last().maxRes = sz;
if (side & 2) m_constraints.last().minRes = sz;
} else {
QDateTime date = QDateTime::fromString(t, "yyyy-MM-dd");
if (!date.isValid()) {
if (error) { *error += "Invalid value: " + t + "\n"; } sane = false; break;
}
qint64 secs = date.secsTo(QDateTime::currentDateTime());
if (secs < 0) {
qWarning() << "warning, issued future date constraint";
secs = 0;
}
if (side & 1) m_constraints.last().younger = secs;
if (side & 2) m_constraints.last().older = secs;
if ((side & 3) == 3) {
m_constraints.last().younger += 24*60*60;
m_constraints.last().older -= 24*60*60;
}
}
side = 0;
}
side = 0;
}
return sane;
}
void ThumbsViewer::applyFilter() {
// Get all patterns supported by QImageReader
static QStringList imageTypeGlobs;
// Not threadsafe, but whatever
if (imageTypeGlobs.isEmpty()) {
QMimeDatabase db;
for (const QByteArray &type : QImageReader::supportedMimeTypes()) {
imageTypeGlobs.append(db.mimeTypeForName(type).globPatterns());
}
}
QStringList fileFilters;
QStringList tokens = m_filter.split(" ", Qt::SkipEmptyParts);
if (tokens.isEmpty())
tokens.append(QString()); // basic filetype glob
for (const QString &t : tokens) {
if (imageTypeGlobs.contains(t))
fileFilters.append(t);
else {
for (const QString &glob : imageTypeGlobs) {
fileFilters.append("*" + t + glob);
}
}
}
thumbsDir.setNameFilters(fileFilters);
thumbsDir.setFilter(QDir::Files);
if (Settings::showHiddenFiles) {
thumbsDir.setFilter(thumbsDir.filter() | QDir::Hidden);
}
thumbsDir.setPath(Settings::currentDirectory);
QDir::SortFlags tempThumbsSortFlags = thumbsSortFlags;
if (tempThumbsSortFlags & QDir::Size || tempThumbsSortFlags & QDir::Time) {
tempThumbsSortFlags ^= QDir::Reversed;
}
if (thumbsSortFlags & QDir::Time || thumbsSortFlags & QDir::Size || thumbsSortFlags & QDir::Type) {
thumbsDir.setSorting(tempThumbsSortFlags);
} else { // by name
thumbsDir.setSorting(QDir::NoSort);
}
}
static int gs_fontHeight = 0;
QSize ThumbsViewer::itemSizeHint() const
{
switch(Settings::thumbsLayout) {
case Squares:
return QSize(thumbSize, thumbSize);
case Compact:
return QSize(thumbSize, thumbSize + int(2.5*gs_fontHeight));
case Classic:
return QSize(thumbSize, thumbSize + int(1.5*gs_fontHeight));
default:
qWarning() << "Invalid thumbs layout" << Settings::thumbsLayout;
return QSize(thumbSize, thumbSize);
}
}
void ThumbsViewer::loadPrepare() {
m_model->clear();
gs_fontHeight = QFontMetrics(font()).height();
setIconSize(QSize(thumbSize, thumbSize));
setViewportMargins(0, gs_fontHeight, 0, 0);
if (Settings::thumbsLayout == Squares) {
setSpacing(0);
setUniformItemSizes(true);
setGridSize(itemSizeHint());
} else if (Settings::thumbsLayout == Compact) {
setSpacing(0);
setUniformItemSizes(false);
setGridSize(itemSizeHint());
} else {
setUniformItemSizes(false);
setGridSize(QSize(dynamicGridWidth(), itemSizeHint().height() + gs_fontHeight));
}
if (isNeedToScroll) {
scrollToTop();
}
if (!isClosing) {
isAbortThumbsLoading = false;
}
thumbsRangeFirst = -1;
thumbsRangeLast = -1;
/// @todo why does this get reset whenever the thumbview updates?
// imageTags->resetTagsState();
}
void ThumbsViewer::refreshThumbs() {
for (int row = 0; row < m_model->rowCount(); ++row)
m_model->setData(m_model->index(row, 0), false, LoadedRole);
setIconSize(QSize(thumbSize, thumbSize));
if (Settings::thumbsLayout == Squares) {
setGridSize(itemSizeHint());
} else if (Settings::thumbsLayout == Compact) {
setGridSize(itemSizeHint());
} else {
setGridSize(QSize(dynamicGridWidth(), itemSizeHint().height() + gs_fontHeight));
}
thumbsRangeFirst = -1;
thumbsRangeLast = -1;
loadVisibleThumbs();
}
void ThumbsViewer::loadDuplicates()
{
if (m_busy) {
abort();
QTimer::singleShot(50, this, [=]() { loadDuplicates(); });
return;
}
m_busy = true;
loadPrepare();
emit status(tr("Searching duplicate images..."));
findDupes(true);
m_model->setSortRole(SortRole);
if (Settings::includeSubDirectories) {
QDirIterator iterator(Settings::currentDirectory, QDirIterator::Subdirectories);
while (iterator.hasNext()) {
iterator.next();
if (iterator.fileInfo().isDir() && iterator.fileName() != "." && iterator.fileName() != "..") {
thumbsDir.setPath(iterator.filePath());
findDupes(false);
if (isAbortThumbsLoading) {
goto finish;
}
}
}
}
finish:
m_model->sort(0);
m_busy = false;
return;
}
void ThumbsViewer::initThumbs() {
thumbFileInfoList = thumbsDir.entryInfoList();
if (!(thumbsSortFlags & QDir::Time) && !(thumbsSortFlags & QDir::Size) && !(thumbsSortFlags & QDir::Type)) {
QCollator collator;
if (thumbsSortFlags & QDir::IgnoreCase) {
collator.setCaseSensitivity(Qt::CaseInsensitive);
}
collator.setNumericMode(true);
if (thumbsSortFlags & QDir::Reversed) {
std::sort(thumbFileInfoList.begin(), thumbFileInfoList.end(), [&](const QFileInfo &a, const QFileInfo &b) {
return collator.compare(a.fileName(), b.fileName()) > 0;
});
} else {
std::sort(thumbFileInfoList.begin(), thumbFileInfoList.end(), [&](const QFileInfo &a, const QFileInfo &b) {
return collator.compare(a.fileName(), b.fileName()) < 0;
});
}
}
QSize hintSize = itemSizeHint();
QElapsedTimer timer;
timer.start();
// int totalTime = 0;
for (int fileIndex = 0; fileIndex < thumbFileInfoList.size(); ++fileIndex) {
thumbFileInfo = thumbFileInfoList.at(fileIndex);
Metadata::cache(thumbFileInfo.filePath());
if (imageTags->dirFilteringActive && imageTags->isImageFilteredOut(thumbFileInfo.filePath())) {
continue;
}
bool constrained = false;
for (const Constraint &c : m_constraints) {
constrained = false;
if ((constrained = (c.smaller && thumbFileInfo.size() > c.smaller))) continue;
if ((constrained = (c.bigger && thumbFileInfo.size() < c.bigger ))) continue;
qint64 age = thumbFileInfo.lastModified().secsTo(QDateTime::currentDateTime());
if ((constrained = (c.older && age < c.older ))) continue;
if ((constrained = (c.younger && age > c.younger))) continue;
if (!(c.minPix || c.maxPix || c.minRes.isValid() || c.maxRes.isValid()))
break;
// we gotta inspect the image for this
QSize res = QImageReader(thumbFileInfo.filePath()).size();
if (!res.isValid())
break; // if we can't check the image we give it a pass
if ((constrained = (c.minPix && res.width()*res.height() < c.minPix))) continue;
if ((constrained = (c.maxPix && res.width()*res.height() > c.maxPix))) continue;
if ((constrained = (c.minRes.width() > 0 && res.width() < c.minRes.width()))) continue;
if ((constrained = (c.minRes.height() > 0 && res.height() < c.minRes.height()))) continue;
if ((constrained = (c.maxRes.width() > 0 && res.width() > c.maxRes.width()))) continue;
if ((constrained = (c.maxRes.height() > 0 && res.height() > c.maxRes.height()))) continue;
break; // this constraint is sufficient
}
if (constrained)
continue;
QStandardItem *thumbItem = new QStandardItem();
thumbItem->setData(false, LoadedRole);
thumbItem->setData(fileIndex, SortRole);
thumbItem->setData(thumbFileInfo.size(), SizeRole);
thumbItem->setData(thumbFileInfo.suffix(), TypeRole);
thumbItem->setData(thumbFileInfo.lastModified(), TimeRole);
thumbItem->setData(thumbFileInfo.filePath(), FileNameRole);
thumbItem->setSizeHint(hintSize);
if (Settings::thumbsLayout != Squares) {
thumbItem->setTextAlignment(Qt::AlignTop | Qt::AlignHCenter);
thumbItem->setText(thumbFileInfo.fileName());
}
m_model->appendRow(thumbItem);
if (timer.elapsed() > 30) {
QApplication::processEvents();
/** @todo: nice idea, but doesn't work
totalTime += timer.elapsed();
if (totalTime > 500) { // if this takes too long
loadVisibleThumbs(); // make it look fast
totalTime = INT_MIN; // so don't time out again.
}
*/
timer.restart();
}
}
if (imageTags->isVisible())
QTimer::singleShot(500, this, [=]() { if (imageTags->isVisible()) imageTags->populateTagsTree(); });
if (!m_desiredThumbPath.isEmpty()) {
setCurrentIndex(m_desiredThumbPath);
m_desiredThumbPath.clear();
scrollTo(currentIndex());
} else if (thumbFileInfoList.size() && selectionModel()->selectedIndexes().size() == 0) {
setCurrentIndex(0);
}
}
void ThumbsViewer::updateThumbsCount() {
emit status(m_model->rowCount() > 0 ? tr("%n image(s)", "", m_model->rowCount()) : tr("No images"));
thumbsDir.setPath(Settings::currentDirectory);
}
struct DuplicateImage
{
QString filePath;
unsigned int duplicates;
unsigned int id = 0;
};
void ThumbsViewer::findDupes(bool resetCounters)
{
thumbFileInfoList = thumbsDir.entryInfoList();
static unsigned int duplicateFiles, scannedFiles, totalFiles;
static QHash<QBitArray, DuplicateImage> imageHashes;
if (resetCounters) {
imageHashes.clear();
duplicateFiles = scannedFiles = totalFiles = 0;
}
totalFiles += thumbsDir.entryInfoList().size();
QElapsedTimer timer;
timer.start();
for (int currThumb = 0; currThumb < thumbFileInfoList.size(); ++currThumb) {
if (timer.elapsed() > 30) {
emit progress(scannedFiles, totalFiles);
emit status(tr("Found %n duplicate(s) among %1 files", "", duplicateFiles).arg(totalFiles));
m_model->sort(0);
QApplication::processEvents();
timer.restart();
}
thumbFileInfo = thumbFileInfoList.at(currThumb);
QImageReader imageReader;
QString imageFileName = thumbFileInfo.absoluteFilePath();
QImage image;
imageReader.setFileName(imageFileName);
imageReader.setQuality(50); // 50 is the threshold where Qt does fast decoding, but still good scaling
const QSize targetSize = imageReader.size();
QSize realSize;
QString thumbnailPath = locateThumbnail(imageFileName);
if (!thumbnailPath.isEmpty() && QImageReader(thumbnailPath).canRead()) {
imageReader.setFileName(thumbnailPath);
imageReader.read(&image);
realSize = QSize(image.text("Thumb::Image::Width").toInt(), image.text("Thumb::Image::Height").toInt());
}
if (targetSize != realSize) {
imageReader.setFileName(imageFileName);
imageReader.read(&image);
}
++scannedFiles;
if (image.isNull()) {
qWarning() << "invalid image" << thumbFileInfo.fileName();
continue;
}
QBitArray imageHash(64);
image = image.convertToFormat(QImage::Format_Grayscale8).scaled(9, 9, Qt::KeepAspectRatioByExpanding /*, Qt::SmoothTransformation*/);
for (int y=0; y<8; ++y) {
const uchar *line = image.scanLine(y);
//const uchar *nextLine = image.scanLine(y+1);
for (int x=0; x<8; ++x) {
imageHash.setBit(y * 8 + x, line[x] > line[x+1]);
//imageHash.setBit(y * 8 + x + 64, line[x] > nextLine[x]);
}
}
QString currentFilePath = thumbFileInfo.filePath();
QHash<QBitArray, DuplicateImage>::iterator match = imageHashes.find(imageHash);
if (match == imageHashes.end()) {
imageHashes.insert(imageHash, {currentFilePath, 0, (unsigned int)imageHashes.count()});
} else {
++duplicateFiles;
// display sibling
if (match.value().duplicates < 1) {
if (QStandardItem *item = addThumb(match.value().filePath)) {
item->setData(match.value().id, SortRole);
}
}
// ... and this one
match.value().duplicates++;
if (QStandardItem *item = addThumb(currentFilePath)) {
item->setData(match.value().id, SortRole);
}
}
if (isAbortThumbsLoading) {
break;
}
}
emit progress(scannedFiles, totalFiles);
emit status(tr("Found %n duplicate(s) among %1 files", "", duplicateFiles).arg(totalFiles));
m_model->sort(0);
QApplication::processEvents();
}
void ThumbsViewer::selectByBrightness(qreal min, qreal max) {
scanForSort(BrightnessRole);
QItemSelection sel;
for (int row = 0; row < m_model->rowCount(); ++row) {
QModelIndex idx = m_model->index(row, 0);
QVariant brightness = m_model->data(idx, BrightnessRole);
if (brightness.isValid()) {
qreal val = brightness.toReal();
if (val >= min && val <= max)
sel.select(idx, idx);
}
}
selectionModel()->select(sel, QItemSelectionModel::ClearAndSelect);
}
static Histogram calcHist(const QImage &img)
{
Histogram hist;
if (img.isNull()) {
qWarning() << "Invalid file";
return hist;
}
const QImage image = img.scaled(256, 256).convertToFormat(QImage::Format_RGB888);
for (int y=0; y<image.height(); y++) {
const uchar *line = image.scanLine(y);
for (int x=0; x<image.width(); x++) {
const int index = x * 3;
hist.red[line[index + 0]] += 1.f;
hist.green[line[index + 1]] += 1.f;
hist.blue[line[index + 2]] += 1.f;
}
}
return hist;
}
/*
static Histogram calcHist(const QString &filePath) {
QImageReader reader(filePath);
reader.setScaledSize(QSize(256, 256));
reader.setAutoTransform(false);
QImage image = reader.read();
if (image.isNull()) {
qWarning() << "Invalid file" << filePath << reader.errorString();
return {};
}
return calcHist(image);
}
*/
void ThumbsViewer::scanForSort(UserRoles role) {
if (role != HistogramRole && role != BrightnessRole)
return;
QProgressDialog progress(tr("Loading..."), tr("Abort"), 0, thumbFileInfoList.count(), this);
QElapsedTimer timer;
timer.start();
qint64 totalTime = 0;
for (int i = 0; i < thumbFileInfoList.count(); ++i) {
QStandardItem *item = m_model->item(i);
Q_ASSERT(item);
if (!item) {
continue;
}
const QString filename = item->data(FileNameRole).toString();
if (item->data(BrightnessRole).isValid() && histFiles.contains(filename)) {
continue;
}
// try to use thumbnail (they're used when storing the histogram in ::loadThumb as well)
bool haveThumbogram = false;
QString thumbname = locateThumbnail(filename);
if (!thumbname.isEmpty()) {
QImageReader thumbReader(thumbname);
QImage image;
thumbReader.read(&image);
haveThumbogram = QImageReader(filename).size() == QSize(image.text("Thumb::Image::Width").toInt(),
image.text("Thumb::Image::Height").toInt());
if (haveThumbogram) {
histograms.append(calcHist(image));
item->setData(qGray(image.scaled(1, 1, Qt::IgnoreAspectRatio, Qt::SmoothTransformation).pixel(0, 0)) / 255.0, BrightnessRole);
}
}
if (!haveThumbogram) {
QImageReader reader(filename);
reader.setScaledSize(QSize(256, 256));
reader.setAutoTransform(false);
QImage image = reader.read();