4 files changed, 60 insertions, 9 deletions
diff --git a/src/filetreeitem.cpp b/src/filetreeitem.cpp
index 3b18cf54..cfcf891a 100644
--- a/src/filetreeitem.cpp
+++ b/src/filetreeitem.cpp
@@ -99,6 +99,16 @@ QFont FileTreeItem::font() const
   return f;
 }
 
+const FileTreeItem::Meta& FileTreeItem::meta() const
+{
+  if (!m_meta) {
+    QFile f(m_realPath);
+    m_meta = {static_cast<uint64_t>(f.size())};
+  }
+
+  return *m_meta;
+}
+
 QFileIconProvider::IconType FileTreeItem::icon() const
 {
   if (m_flags & Directory) {
diff --git a/src/filetreeitem.h b/src/filetreeitem.h
index 2677d590..445b1ea8 100644
--- a/src/filetreeitem.h
+++ b/src/filetreeitem.h
@@ -17,6 +17,12 @@ public:
     Conflicted  = 0x04
   };
 
+  struct Meta
+  {
+    uint64_t size;
+  };
+
+
   Q_DECLARE_FLAGS(Flags, Flag);
 
   FileTreeItem(
@@ -124,6 +130,8 @@ public:
 
   QFont font() const;
 
+  const Meta& meta() const;
+
   const QString& realPath() const
   {
     return m_realPath;
@@ -210,6 +218,7 @@ private:
   const MOShared::DirectoryEntry::FileKey m_key;
   const QString m_file;
   const QString m_mod;
+  mutable std::optional<Meta> m_meta;
 
   bool m_loaded;
   bool m_expanded;
diff --git a/src/filetreemodel.cpp b/src/filetreemodel.cpp
index 5b513ce2..351e0d2f 100644
--- a/src/filetreemodel.cpp
+++ b/src/filetreemodel.cpp
@@ -196,7 +196,7 @@ int FileTreeModel::rowCount(const QModelIndex& parent) const
 
 int FileTreeModel::columnCount(const QModelIndex&) const
 {
-  return 2;
+  return ColumnCount;
 }
 
 bool FileTreeModel::hasChildren(const QModelIndex& parent) const
@@ -246,10 +246,31 @@ QVariant FileTreeModel::data(const QModelIndex& index, int role) const
     case Qt::DisplayRole:
     {
       if (auto* item=itemFromIndex(index)) {
-        if (index.column() == 0) {
-          return item->filename();
-        } else if (index.column() == 1) {
-          return item->mod();
+        switch (index.column())
+        {
+          case Filename:
+          {
+            return item->filename();
+          }
+
+          case ModName:
+          {
+            return item->mod();
+          }
+
+          case FileSize:
+          {
+            if (item->isDirectory()) {
+              return {};
+            } else {
+              return localizedByteSize(item->meta().size);
+            }
+          }
+
+          default:
+          {
+            break;
+          }
         }
       }
 
@@ -304,11 +325,13 @@ QVariant FileTreeModel::data(const QModelIndex& index, int role) const
 
 QVariant FileTreeModel::headerData(int i, Qt::Orientation ori, int role) const
 {
+  static const std::array<QString, ColumnCount> names = {
+    tr("File"), tr("Mod"), tr("Size")
+  };
+
   if (role == Qt::DisplayRole) {
-    if (i == 0) {
-      return tr("File");
-    } else if (i == 1) {
-      return tr("Mod");
+    if (i > 0 && i < static_cast<int>(names.size())) {
+      return names[static_cast<std::size_t>(i)];
     }
   }
 
diff --git a/src/filetreemodel.h b/src/filetreemodel.h
index 305aba2a..7de6830d 100644
--- a/src/filetreemodel.h
+++ b/src/filetreemodel.h
@@ -20,6 +20,15 @@ public:
     Archives  = 0x02
   };
 
+  enum Columns
+  {
+    Filename = 0,
+    ModName,
+    FileSize,
+
+    ColumnCount
+  };
+
   Q_DECLARE_FLAGS(Flags, Flag);
 
   FileTreeModel(OrganizerCore& core, QObject* parent=nullptr);