add an entry for common file types as first one and make it configurable

Author: aumuell

config/filetypes.toml

@@ -36,3 +36,7 @@ Vrml97 = ["wrl", "wrl.gz", "wrz", "x3d", "x3dv"]
 [osg]
 # add filters for the osg_db plugins supporting any of these formats
 extensions = ["wrl", "osg", "ive", "osgb", "osgt", "osgx", "obj", "stl", "ply", "iv", "dxf", "3ds", "flt", "dae", "md2", "geo", "bvh", "fbx"]
+
+[common]
+# first entry listing all supported extensions from this list
+extensions = ["wrl", "osg", "ive", "osgb", "obj", "stl", "ply", "3ds", "bvh", "fbx", "xvf", "e57", "ptsb", "vwp"]

src/OpenCOVER/cover/coVRFileManager.cpp

@@ -1861,7 +1861,7 @@ void coVRFileManager::updateSupportedFormats()
         }
     };
 
-    std::vector<FilterList> filterLists;
+    std::deque<FilterList> filterLists;
 
     std::set<std::string> extensions;
 
@@ -1914,6 +1914,7 @@ void coVRFileManager::updateSupportedFormats()
             }
         }
     }
+
     // build filter string
     for(const auto &[plugin, exts] : popularPlugins)
     {
@@ -1926,6 +1927,9 @@ void coVRFileManager::updateSupportedFormats()
     std::sort(filterLists.begin(), filterLists.end());
     filterLists.push_back({"All Files", std::set<std::string>({""})});
 
+    auto commonExtensions = filetypes.array<std::string>("common", "extensions")->value();
+    filterLists.push_front({"Common Files", {commonExtensions.begin(), commonExtensions.end()}});
+
     m_supportedReadExtentions.clear();
     for (const auto &fl: filterLists)
     {

src/OpenCOVER/plugins/general/WindowTypeQt/QtView.cpp

@@ -443,6 +443,7 @@ QtViewElement *QtView::elementFactoryImplementation(FileBrowser *fb)
             formattedFilters.append(f);
             selectedFilter = f;
         }
+        selectedFilter = formattedFilters.first(); // default to first filter
         filters = formattedFilters.join(";;");
         QString dir = QString::fromStdString(fb->value());
         QString file = fb->forSaving()