detect apache hive directory structures and use them as prefix suggestions

plotjuggler_app/multifile_prefix.cpp

@@ -11,6 +11,7 @@
 #include <QFormLayout>
 #include <QFileInfo>
 #include <QSettings>
+#include <filesystem>
 
 DialogMultifilePrefix::DialogMultifilePrefix(QStringList filenames, QWidget* parent)
   : QDialog(parent), ui(new Ui::DialogMultifilePrefix)
@@ -31,6 +32,20 @@ DialogMultifilePrefix::DialogMultifilePrefix(QStringList filenames, QWidget* par
   int index = 0;
   for (QString filename : filenames)
   {
+    // look for = in the parent directory, if there is one the data is probably in a hive structure
+    std::filesystem::path path = filename.toStdString();
+    std::string hive_path;
+    bool found_hive = false;
+    while (path.has_parent_path() &&
+           path.parent_path().filename().string().find('=') != std::string::npos)
+    {
+      path = path.parent_path();
+      std::string path_str = path.filename().string();
+      hive_path.insert(0, path_str.erase(0, path_str.find("=") + 1));
+      hive_path.insert(0, "/");
+      found_hive = true;
+    }
+
     auto label_file = new QLabel(filename, this);
     label_file->setTextInteractionFlags(Qt::TextSelectableByMouse);
 
@@ -43,13 +58,20 @@ DialogMultifilePrefix::DialogMultifilePrefix(QStringList filenames, QWidget* par
     vlayout->insertWidget(index++, label_file);
     vlayout->insertLayout(index++, form_layout);
 
-    if (_previous_prefixes.count(filename))
+    if (found_hive)
     {
-      line_edit->setText(_previous_prefixes[filename]);
+      line_edit->setText(hive_path.c_str());
     }
     else
     {
-      line_edit->setText(QFileInfo(filename).baseName());
+      if (_previous_prefixes.count(filename))
+      {
+        line_edit->setText(_previous_prefixes[filename]);
+      }
+      else
+      {
+        line_edit->setText(QFileInfo(filename).baseName());
+      }
     }
     _prefixes[filename] = line_edit->text();
     _line_edits.insert({ filename, line_edit });