Reduce memory usage

model/foldermodel.cpp

@@ -53,6 +53,7 @@
 #include <QProcess>
 #include <QSettings>
 #include <QDesktopServices>
+#include <QPixmapCache>
 
 // Qt Quick
 #include <QQuickItem>
@@ -1199,6 +1200,11 @@ void FolderModel::keyboardSearch(const QString &text)
     }
 }
 
+void FolderModel::clearPixmapCache()
+{
+    QPixmapCache::clear();
+}
+
 void FolderModel::restoreFromTrash()
 {
     if (!m_selectionModel->hasSelection())

model/foldermodel.h

@@ -209,6 +209,8 @@ public:
     Q_INVOKABLE void updateSelectedItemsSize();
     Q_INVOKABLE void keyboardSearch(const QString &text);
 
+    Q_INVOKABLE void clearPixmapCache();
+
     void restoreFromTrash();
 
     bool isDesktop() const;

qml/Desktop/Wallpaper.qml

@@ -41,6 +41,9 @@ Item {
             clip: true
             cache: false
 
+            // Clear cache
+            onSourceChanged: dirModel.clearPixmapCache()
+
             ColorOverlay {
                 id: dimsWallpaper
                 anchors.fill: parent

window.cpp

@@ -21,6 +21,7 @@
 #include <QEvent>
 #include <QDebug>
 #include <QQuickWindow>
+#include <QPixmapCache>
 
 Window::Window(QObject *parent)
     : QQmlApplicationEngine(parent)
@@ -40,6 +41,7 @@ void Window::load(const QUrl &url)
 bool Window::eventFilter(QObject *obj, QEvent *e)
 {
     if (e->type() == QEvent::Close) {
+        QPixmapCache::clear();
         clearComponentCache();
         deleteLater();
         e->accept();