Fix property window crash

dialogs/filepropertiesdialog.cpp

@@ -172,7 +172,7 @@ bool FilePropertiesDialog::event(QEvent *e)
 void FilePropertiesDialog::init()
 {
     engine()->rootContext()->setContextProperty("main", this);
-    engine()->addImageProvider(QStringLiteral("icontheme"), new DesktopIconProvider());
+    // engine()->addImageProvider(QStringLiteral("icontheme"), new DesktopIconProvider());
 
     setFlag(Qt::Dialog);
     setTitle(tr("Properties"));
@@ -225,9 +225,11 @@ void FilePropertiesDialog::init()
         m_isWritable = false;
         m_fileName = tr("%1 files").arg(m_items.count());
         m_location = QFileInfo(m_items.first().localPath()).dir().path();
+        m_iconName = "unknown";
 
         emit fileNameChanged();
         emit locationChanged();
+        emit iconNameChanged();
     }
 
     emit isWritableChanged();

qml/Dialogs/PropertiesDialog.qml

@@ -65,11 +65,10 @@ Item {
         RowLayout {
             spacing: FishUI.Units.largeSpacing * 2
 
-            Image {
+            FishUI.IconItem {
                 width: 64
-                height: width
-                sourceSize: Qt.size(width, height)
-                source: "image://icontheme/" + main.iconName
+                height: 64
+                source: main.iconName
             }
 
             TextField {

qml/FolderGridItem.qml

@@ -94,7 +94,7 @@ Item {
             sourceSize: Qt.size(width, height)
             source: "image://icontheme/" + model.iconName
             visible: !_image.visible
-            smooth: false
+            smooth: true
             antialiasing: true
 
             ColorOverlay {
@@ -128,7 +128,7 @@ Item {
             source: model.thumbnail ? model.thumbnail : ""
             asynchronous: true
             cache: false
-            smooth: false
+            smooth: true
             antialiasing: true
 
             // Because of the effect of OpacityMask.

qml/FolderListItem.qml

@@ -86,7 +86,6 @@ Item {
                 source: "image://icontheme/" + model.iconName
                 visible: !_image.visible
                 asynchronous: true
-                smooth: false
             }
 
             Image {
@@ -99,7 +98,6 @@ Item {
                 visible: _image.status === Image.Ready
                 fillMode: Image.PreserveAspectFit
                 asynchronous: true
-                smooth: false
                 cache: false
 
                 layer.enabled: true

thumbnailer/thumbnailcache.cpp

@@ -126,7 +126,7 @@ QString ThumbnailCache::requestThumbnail(const QString &filePath, const QSize &r
     md5.addData(QString::number(info.lastModified().toTime_t()).toStdString().c_str());
 
     QString thumbnailsName = QString::fromLatin1(md5.result().toHex()) + QLatin1String(".png");
-    QString thumbnailsPath = m_thumbnailsDir + thumbnailsName;
+    QString thumbnailsPath = m_thumbnailsDir + thumbDir + thumbnailsName;
 
     if (!QFile::exists(thumbnailsPath)) {
         return generateThumbnail(path, thumbnailsPath, requestedSize);