Support upload g-code to third-party printers (#2)

* wip

* fix cmake warning

* add UI and config options for Moonraker connection

* wip: copy whole print host UI from PS

* add more needed options

* wip 2

* fix string issue on Mac

* wip3

src/slic3r/GUI/BonjourDialog.hpp

@@ -0,0 +1,53 @@
+#ifndef slic3r_BonjourDialog_hpp_
+#define slic3r_BonjourDialog_hpp_
+
+#include <memory>
+
+#include <wx/dialog.h>
+
+#include "libslic3r/PrintConfig.hpp"
+
+class wxListView;
+class wxStaticText;
+class wxTimer;
+class wxTimerEvent;
+
+
+namespace Slic3r {
+
+class Bonjour;
+class BonjourReplyEvent;
+class ReplySet;
+
+
+class BonjourDialog: public wxDialog
+{
+public:
+	BonjourDialog(wxWindow *parent, Slic3r::PrinterTechnology);
+	BonjourDialog(BonjourDialog &&) = delete;
+	BonjourDialog(const BonjourDialog &) = delete;
+	BonjourDialog &operator=(BonjourDialog &&) = delete;
+	BonjourDialog &operator=(const BonjourDialog &) = delete;
+	~BonjourDialog();
+
+	bool show_and_lookup();
+	wxString get_selected() const;
+private:
+	wxListView *list;
+	std::unique_ptr<ReplySet> replies;
+	wxStaticText *label;
+	std::shared_ptr<Bonjour> bonjour;
+	std::unique_ptr<wxTimer> timer;
+	unsigned timer_state;
+	Slic3r::PrinterTechnology tech;
+
+	void on_reply(BonjourReplyEvent &);
+	void on_timer(wxTimerEvent &);
+    void on_timer_process();
+};
+
+
+
+}
+
+#endif