[gantt] add op description for vpxd and add toggle for subop details

src/formats/vmw_log.json

@@ -103,6 +103,14 @@
                         }
                     ]
                 },
+                "vpxd-invoking": {
+                    "format": [
+                        {
+                            "field": "body",
+                            "extractor": "Invoking; <<[^,]+, <[^>]+>, <[^>]+>>, [^,]+, ([^,]+),"
+                        }
+                    ]
+                },
                 "vpxd-lro": {
                     "format": [
                         {

src/gantt_source.cc

@@ -240,6 +240,10 @@ gantt_header_overlay::list_value_for_overlay(
     vis_line_t line,
     std::vector<attr_line_t>& value_out)
 {
+    if (!this->gho_show_details) {
+        return;
+    }
+
     if (lv.get_selection() != line) {
         return;
     }

src/gantt_source.hh

@@ -141,7 +141,18 @@ public:
                                 vis_line_t line,
                                 std::vector<attr_line_t>& value_out) override;
 
+    void set_show_details_in_overlay(bool val) override
+    {
+        this->gho_show_details = val;
+    }
+
+    bool get_show_details_in_overlay() const override
+    {
+        return this->gho_show_details;
+    }
+
 private:
+    bool gho_show_details{true};
     std::shared_ptr<gantt_source> gho_src;
 };