Fluorine Manager: full Linux port of Mod Organizer 2

Complete native Linux port with FUSE-based virtual filesystem,
Proton/umu-run integration, and Flatpak packaging.

Key features:
- FUSE VFS replacing Windows USVFS (in-process + standalone helper for Flatpak)
- Proton/GE-Proton/umu-run launcher with env var forwarding
- Flatpak support (sandbox-aware VFS, NXM handler, umu-run)
- Wine prefix management UI
- Case-insensitive path resolution for Linux filesystems
- QSettings-safe INI handling (avoids Bethesda INI corruption)
- Portable instance support with auto-generated launcher scripts

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

1 files changed, 59 insertions, 0 deletions

diff --git a/libs/uibase/src/widgetutility.cpp b/libs/uibase/src/widgetutility.cpp
new file mode 100644
index 0000000..e3a4b06
--- /dev/null
+++ b/libs/uibase/src/widgetutility.cpp
@@ -0,0 +1,59 @@
+#include <uibase/widgetutility.h>
+#include <uibase/eventfilter.h>
+#include <QCheckBox>
+#include <QHeaderView>
+#include <QMenu>
+#include <QWidgetAction>
+
+namespace MOBase
+{
+
+void onHeaderContextMenu(QTreeView* view, const QPoint& pos)
+{
+  auto* header = view->header();
+
+  QMenu menu;
+
+  // display a list of all headers as checkboxes
+  QAbstractItemModel* model = header->model();
+
+  for (int i = 1; i < model->columnCount(); ++i) {
+    const QString columnName = model->headerData(i, Qt::Horizontal).toString();
+
+    auto* checkBox = new QCheckBox(&menu);
+    checkBox->setText(columnName);
+    checkBox->setChecked(!header->isSectionHidden(i));
+
+    // Enable the checkbox if 1) the section is visible, or 2) the
+    // EnabledColumnRole is not found, or 3) the value for the role is true.
+    auto display = model->headerData(i, Qt::Horizontal, EnabledColumnRole);
+    checkBox->setEnabled(!header->isSectionHidden(i) || !display.isValid() ||
+                         display.toBool());
+
+    auto* checkableAction = new QWidgetAction(&menu);
+    checkableAction->setDefaultWidget(checkBox);
+
+    QObject::connect(checkBox, &QCheckBox::clicked, [=] {
+      header->setSectionHidden(i, !checkBox->isChecked());
+    });
+
+    menu.addAction(checkableAction);
+  }
+
+  menu.exec(header->viewport()->mapToGlobal(pos));
+}
+
+void setCustomizableColumns(QTreeView* view)
+{
+  auto* header = view->header();
+
+  header->setSectionsMovable(true);
+  header->setContextMenuPolicy(Qt::CustomContextMenu);
+
+  QObject::connect(header, &QWidget::customContextMenuRequested, view,
+                   [view](auto&& pos) {
+                     onHeaderContextMenu(view, pos);
+                   });
+}
+
+}  // namespace MOBase