Physical printers: Delete selected printer

+ Added context menu for the cog-button near the printer presets

src/libslic3r/Preset.cpp

@@ -1489,17 +1489,32 @@ void PhysicalPrinterCollection::save_printer(const PhysicalPrinter& edited_print
 bool PhysicalPrinterCollection::delete_printer(const std::string& name)
 {
     auto it = this->find_printer_internal(name);
+    if (it == m_printers.end())
+        return false;
 
     const PhysicalPrinter& printer = *it;
-    if (it == m_printers.end())
-    return false;
-    
     // Erase the preset file.
     boost::nowide::remove(printer.file.c_str());
     m_printers.erase(it);
     return true;
 }
 
+bool PhysicalPrinterCollection::delete_selected_printer()
+{
+    if (!has_selection())
+        return false;
+    const PhysicalPrinter& printer = this->get_selected_printer();
+
+    // Erase the preset file.
+    boost::nowide::remove(printer.file.c_str());
+    // Remove the preset from the list.
+    m_printers.erase(m_printers.begin() + m_idx_selected);
+    // unselect all printers
+    unselect_printer();
+
+    return true;
+}
+
 PhysicalPrinter& PhysicalPrinterCollection::select_printer_by_name(const std::string& name)
 {
     auto it = this->find_printer_internal(name);

src/libslic3r/Preset.hpp

@@ -612,6 +612,9 @@ public:
     // Delete the current preset, activate the first visible preset.
     // returns true if the preset was deleted successfully.
     bool            delete_printer(const std::string& name);
+    // Delete the selected preset
+    // returns true if the preset was deleted successfully.
+    bool            delete_selected_printer();
 
     // Return the selected preset, without the user modifications applied.
     PhysicalPrinter& get_selected_printer() { return m_printers[m_idx_selected]; }