diff options
Diffstat (limited to 'plugin/src/Caelestia/Internal/cachingimagemanager.cpp')
| -rw-r--r-- | plugin/src/Caelestia/Internal/cachingimagemanager.cpp | 223 |
1 files changed, 0 insertions, 223 deletions
diff --git a/plugin/src/Caelestia/Internal/cachingimagemanager.cpp b/plugin/src/Caelestia/Internal/cachingimagemanager.cpp deleted file mode 100644 index 1c15cd2..0000000 --- a/plugin/src/Caelestia/Internal/cachingimagemanager.cpp +++ /dev/null @@ -1,223 +0,0 @@ -#include "cachingimagemanager.hpp" - -#include <QtQuick/qquickwindow.h> -#include <qcryptographichash.h> -#include <qdir.h> -#include <qfileinfo.h> -#include <qfuturewatcher.h> -#include <qimagereader.h> -#include <qpainter.h> -#include <qtconcurrentrun.h> - -namespace caelestia::internal { - -qreal CachingImageManager::effectiveScale() const { - if (m_item && m_item->window()) { - return m_item->window()->devicePixelRatio(); - } - - return 1.0; -} - -QSize CachingImageManager::effectiveSize() const { - if (!m_item) { - return QSize(); - } - - const qreal scale = effectiveScale(); - const QSize size = QSizeF(m_item->width() * scale, m_item->height() * scale).toSize(); - m_item->setProperty("sourceSize", size); - return size; -} - -QQuickItem* CachingImageManager::item() const { - return m_item; -} - -void CachingImageManager::setItem(QQuickItem* item) { - if (m_item == item) { - return; - } - - if (m_widthConn) { - disconnect(m_widthConn); - } - if (m_heightConn) { - disconnect(m_heightConn); - } - - m_item = item; - emit itemChanged(); - - if (item) { - m_widthConn = connect(item, &QQuickItem::widthChanged, this, [this]() { - updateSource(); - }); - m_heightConn = connect(item, &QQuickItem::heightChanged, this, [this]() { - updateSource(); - }); - updateSource(); - } -} - -QUrl CachingImageManager::cacheDir() const { - return m_cacheDir; -} - -void CachingImageManager::setCacheDir(const QUrl& cacheDir) { - if (m_cacheDir == cacheDir) { - return; - } - - m_cacheDir = cacheDir; - if (!m_cacheDir.path().endsWith("/")) { - m_cacheDir.setPath(m_cacheDir.path() + "/"); - } - emit cacheDirChanged(); -} - -QString CachingImageManager::path() const { - return m_path; -} - -void CachingImageManager::setPath(const QString& path) { - if (m_path == path) { - return; - } - - m_path = path; - emit pathChanged(); - - if (!path.isEmpty()) { - updateSource(path); - } -} - -void CachingImageManager::updateSource() { - updateSource(m_path); -} - -void CachingImageManager::updateSource(const QString& path) { - if (path.isEmpty() || path == m_shaPath) { - // Path is empty or already calculating sha for path - return; - } - - m_shaPath = path; - - const auto future = QtConcurrent::run(&CachingImageManager::sha256sum, path); - - const auto watcher = new QFutureWatcher<QString>(this); - - connect(watcher, &QFutureWatcher<QString>::finished, this, [watcher, path, this]() { - if (m_path != path) { - // Object is destroyed or path has changed, ignore - watcher->deleteLater(); - return; - } - - const QSize size = effectiveSize(); - - if (!m_item || !size.width() || !size.height()) { - watcher->deleteLater(); - return; - } - - const QString fillMode = m_item->property("fillMode").toString(); - // clang-format off - const QString filename = QString("%1@%2x%3-%4.png") - .arg(watcher->result()).arg(size.width()).arg(size.height()) - .arg(fillMode == "PreserveAspectCrop" ? "crop" : fillMode == "PreserveAspectFit" ? "fit" : "stretch"); - // clang-format on - - const QUrl cache = m_cacheDir.resolved(QUrl(filename)); - if (m_cachePath == cache) { - watcher->deleteLater(); - return; - } - - m_cachePath = cache; - emit cachePathChanged(); - - if (!cache.isLocalFile()) { - qWarning() << "CachingImageManager::updateSource: cachePath" << cache << "is not a local file"; - watcher->deleteLater(); - return; - } - - const QImageReader reader(cache.toLocalFile()); - if (reader.canRead()) { - m_item->setProperty("source", cache); - } else { - m_item->setProperty("source", QUrl::fromLocalFile(path)); - createCache(path, cache.toLocalFile(), fillMode, size); - } - - // Clear current running sha if same - if (m_shaPath == path) { - m_shaPath = QString(); - } - - watcher->deleteLater(); - }); - - watcher->setFuture(future); -} - -QUrl CachingImageManager::cachePath() const { - return m_cachePath; -} - -void CachingImageManager::createCache( - const QString& path, const QString& cache, const QString& fillMode, const QSize& size) const { - QThreadPool::globalInstance()->start([path, cache, fillMode, size] { - QImage image(path); - - if (image.isNull()) { - qWarning() << "CachingImageManager::createCache: failed to read" << path; - return; - } - - image.convertTo(QImage::Format_ARGB32); - - if (fillMode == "PreserveAspectCrop") { - image = image.scaled(size, Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation); - } else if (fillMode == "PreserveAspectFit") { - image = image.scaled(size, Qt::KeepAspectRatio, Qt::SmoothTransformation); - } else { - image = image.scaled(size, Qt::IgnoreAspectRatio, Qt::SmoothTransformation); - } - - if (fillMode == "PreserveAspectCrop" || fillMode == "PreserveAspectFit") { - QImage canvas(size, QImage::Format_ARGB32); - canvas.fill(Qt::transparent); - - QPainter painter(&canvas); - painter.drawImage((size.width() - image.width()) / 2, (size.height() - image.height()) / 2, image); - painter.end(); - - image = canvas; - } - - const QString parent = QFileInfo(cache).absolutePath(); - if (!QDir().mkpath(parent) || !image.save(cache)) { - qWarning() << "CachingImageManager::createCache: failed to save to" << cache; - } - }); -} - -QString CachingImageManager::sha256sum(const QString& path) { - QFile file(path); - if (!file.open(QIODevice::ReadOnly)) { - qWarning() << "CachingImageManager::sha256sum: failed to open" << path; - return ""; - } - - QCryptographicHash hash(QCryptographicHash::Sha256); - hash.addData(&file); - file.close(); - - return hash.result().toHex(); -} - -} // namespace caelestia::internal |