single file cloud upload

engine/app_dialogs.cpp

@@ -133,6 +133,36 @@ void App::dialog_browse()
     }
 }
 
+void App::dialog_save_ver()
+{
+    int current = 0;
+    std::string next = doc_name + ".01";
+    std::string base = doc_name;
+
+    std::regex r(R"((.*)\.(\w{2})$)");
+    std::smatch m;
+    if (std::regex_search(doc_name, m, r))
+    {
+        base = m[1].str();
+        current = atoi(m[2].str().c_str());
+    }
+
+    for (int i = current + 1; i < 99; i++)
+    {
+        static char tmp_name[256];
+        sprintf(tmp_name, "%s.%02d", base.c_str(), i);
+        next = tmp_name;
+        if (Asset::exist(data_path + "/" + next + ".pano", false))
+            continue;
+        break;
+    }
+
+    doc_name = next;
+    if (auto docname = layout[main_id]->find<NodeText>("txt-docname"))
+        docname->set_text(("Panodoc: " + doc_name).c_str());
+    canvas->m_canvas->project_save(data_path + "/" + next + ".pano");
+}
+
 void App::dialog_save()
 {
     if (canvas)