Current path display improvements

- Ellipsize current path if it is too long to fit
- Show '/' instead of blank for root dir

Fix #1015

src/MainEditor/UI/ArchivePanel.cpp

@@ -385,13 +385,16 @@ ArchivePanel::ArchivePanel(wxWindow* parent, Archive* archive)
 
 
 	// Create path display
+	auto min_pad         = UI::px(UI::Size::PadMinimum);
 	sizer_path_controls_ = new wxBoxSizer(wxHORIZONTAL);
-	framesizer->Add(sizer_path_controls_, 0, wxEXPAND|wxLEFT|wxRIGHT, UI::pad());
-	framesizer->AddSpacer(UI::px(UI::Size::PadMinimum));
+	framesizer->Add(sizer_path_controls_, 0, wxEXPAND | wxLEFT | wxRIGHT, UI::pad());
+	framesizer->AddSpacer(min_pad);
 
 	// Label
-	label_path_ = new wxStaticText(this, -1, "Path:", wxDefaultPosition, wxDefaultSize, wxST_ELLIPSIZE_START);
-	sizer_path_controls_->Add(label_path_, 1, wxRIGHT|wxALIGN_CENTER_VERTICAL, UI::pad());
+	label_path_ =
+		new wxStaticText(this, -1, "/", wxDefaultPosition, wxDefaultSize, wxST_ELLIPSIZE_START | wxST_NO_AUTORESIZE);
+	sizer_path_controls_->Add(new wxStaticText(this, -1, "Path:"), 0, wxRIGHT | wxALIGN_CENTER_VERTICAL, min_pad);
+	sizer_path_controls_->Add(label_path_, 1, wxRIGHT | wxALIGN_CENTER_VERTICAL, UI::pad());
 
 	// 'Up' button
 	btn_updir_ = new SIconButton(this, Icons::ENTRY, "upfolder");
@@ -4060,15 +4063,14 @@ void ArchivePanel::onDirChanged(wxCommandEvent& e)
 	if (!dir->getParent())
 	{
 		// Root dir
-		label_path_->SetLabel("Path:");
+		label_path_->SetLabel("/");
 		btn_updir_->Enable(false);
 	}
 	else
 	{
 		// Setup path string
 		string path = dir->getPath();
 		path.Remove(0, 1);
-		path.Prepend("Path: ");
 
 		label_path_->SetLabel(path);
 		btn_updir_->Enable(true);