4 files changed, 30 insertions, 1 deletions
diff --git a/qdeduper/mingui.cpp b/qdeduper/mingui.cpp
index 3d11e36..c9ca2f8 100644
--- a/qdeduper/mingui.cpp
+++ b/qdeduper/mingui.cpp
@@ -29,12 +29,12 @@
 #include <QAction>
 #include <QSplitter>
 #include <QString>
+#include <QTimer>
 #include <QScrollArea>
 #include <QListView>
 #include <QProgressDialog>
 #include <QStandardItemModel>
 #include <QLabel>
-#include <QHBoxLayout>
 #include <QVBoxLayout>
 #include <QStatusBar>
 #include <QPixmap>
@@ -84,6 +84,7 @@ DeduperMainWindow::DeduperMainWindow()
     this->setup_menu();
     this->update_actions();
     sb = this->statusBar();
+    sb->addPermanentWidget(dbramusg = new QLabel());
     sb->addPermanentWidget(permamsg = new QLabel());
     QLabel *opm = new QLabel();
     opm->setText("placeholder status bar text");
@@ -136,12 +137,16 @@ DeduperMainWindow::DeduperMainWindow()
     lv->setFont(fnt);
     infopanel->setFont(fnt);
     pdlb->setFont(fnt);
+    rampupd = new QTimer(this);
+    rampupd->setInterval(1000);
+    QObject::connect(rampupd, &QTimer::timeout, this, &DeduperMainWindow::update_memusg);
 
     sr = new SettingsRegistry(QStandardPaths::writableLocation(QStandardPaths::StandardLocation::ConfigLocation) + QString("/qdeduperrc"));
     int generalt = sr->register_tab("General");
     sr->register_int_option(generalt, "min_image_dim", "Minimal Dimension in Image View", 16, 4096, 64);
     sr->register_int_option(generalt, "thread_count", "Number of Threads (0 = Automatic)", 0, 4096, 0);
     sr->register_bool_option(generalt, "toolbar_text", "Show Text in Toolbar Buttons", true);
+    sr->register_bool_option(generalt, "show_memory_usage", "Show Database Engine Memory Usage", false);
     int sigt = sr->register_tab("Signature");
     sr->register_double_option(sigt, "signature/threshold", "Distance Threshold", 0, 1, 0.3);
     prefdlg = new PreferenceDialog(sr, this);
@@ -770,6 +775,19 @@ void DeduperMainWindow::apply_prefs()
     id->set_min_height(sr->get_option_int("min_image_dim"));
     tb->setToolButtonStyle(sr->get_option_bool("toolbar_text") ? Qt::ToolButtonStyle::ToolButtonTextBesideIcon
                                                                : Qt::ToolButtonStyle::ToolButtonIconOnly);
+    if (sr->get_option_bool("show_memory_usage"))
+        this->rampupd->start();
+    else
+    {
+        this->rampupd->stop();
+        this->dbramusg->setText(QString());
+    }
+}
+
+void DeduperMainWindow::update_memusg()
+{
+    if (this->sdb)
+        dbramusg->setText(QString("Database memory usage: %1").arg(QLocale::system().formattedDataSize(this->sdb->db_memory_usage())));
 }
 
 void DeduperMainWindow::sort_reassign_hotkeys()
diff --git a/qdeduper/mingui.hpp b/qdeduper/mingui.hpp
index 5686c3e..d675d47 100644
--- a/qdeduper/mingui.hpp
+++ b/qdeduper/mingui.hpp
@@ -23,6 +23,7 @@ class QProgressDialog;
 class QSplitter;
 class QStandardItemModel;
 class QToolBar;
+class QTimer;
 class FileScanner;
 class ImageItemDelegate;
 class SettingsRegistry;
@@ -44,6 +45,7 @@ private:
     QSplitter *l;
     QTextEdit *infopanel;
     QLabel *permamsg;
+    QLabel *dbramusg;
     QStatusBar *sb;
     QListView *lv;
     QToolBar *tb = nullptr;
@@ -56,6 +58,7 @@ private:
     FileScanner *fsc = nullptr;
     SettingsRegistry *sr = nullptr;
     PreferenceDialog *prefdlg = nullptr;
+    QTimer *rampupd = nullptr;
     std::unordered_set<fs::path> marked;
     int sort_role;
     Qt::SortOrder sort_order;
@@ -95,6 +98,7 @@ public Q_SLOTS:
     void show_group(size_t gid);
     void show_marked();
     void apply_prefs();
+    void update_memusg();
 Q_SIGNALS:
     void next();
     void prev();
diff --git a/qdeduper/sigdb_qt.cpp b/qdeduper/sigdb_qt.cpp
index 2128f8d..aff7312 100644
--- a/qdeduper/sigdb_qt.cpp
+++ b/qdeduper/sigdb_qt.cpp
@@ -187,3 +187,8 @@ bool SignatureDB::save(const fs::path &p)
 {
     return sdb->to_db_file(p);
 }
+
+int64_t SignatureDB::db_memory_usage()
+{
+    return sdb->db_memory_usage();
+}
diff --git a/qdeduper/sigdb_qt.hpp b/qdeduper/sigdb_qt.hpp
index 39b57b7..a1203be 100644
--- a/qdeduper/sigdb_qt.hpp
+++ b/qdeduper/sigdb_qt.hpp
@@ -51,6 +51,8 @@ public:
 
     bool load(const fs::path &p);
     bool save(const fs::path &p);
+
+    int64_t db_memory_usage();
 Q_SIGNALS:
     void image_scanned(size_t n);
 };