FIX:fixed incorrect disabled state of filaments material

Change-Id: I168131d90f4b7e987d026808366a08895e1b1524

src/slic3r/GUI/SelectMachine.cpp

@@ -1735,8 +1735,11 @@ void SelectMachineDialog::prepare_mode()
         Fit();
     }
 
-    for (auto it = m_materialList.begin(); it != m_materialList.end(); it++) {
-        it->second->item->enable();
+    if (m_print_page_mode != PrintPageModePrepare) {
+        m_print_page_mode = PrintPageModePrepare;
+        for (auto it = m_materialList.begin(); it != m_materialList.end(); it++) {
+            it->second->item->enable();
+        }
     }
 }
 
@@ -1752,13 +1755,18 @@ void SelectMachineDialog::sending_mode()
         Fit();
     }
 
-    for (auto it = m_materialList.begin(); it != m_materialList.end(); it++) {
-        it->second->item->disable();
+    
+    if (m_print_page_mode != PrintPageModeSending) {
+        m_print_page_mode = PrintPageModeSending;
+        for (auto it = m_materialList.begin(); it != m_materialList.end(); it++) {
+            it->second->item->disable();
+        }
     }
 }
 
 void SelectMachineDialog::finish_mode()
 {
+    m_print_page_mode = PrintPageModeFinish;
     m_is_in_sending_mode = false;
     m_simplebook->SetSelection(2);
     Layout();

src/slic3r/GUI/SelectMachine.hpp

@@ -238,6 +238,12 @@ private:
 #define SELECT_MACHINE_DIALOG_SIMBOOK_SIZE wxSize(FromDIP(370), FromDIP(64))
 
 
+enum PrintPageMode {
+    PrintPageModePrepare = 0,
+    PrintPageModeSending,
+    PrintPageModeFinish
+};
+
 enum PrintDialogStatus {
     PrintStatusInit = 0,
     PrintStatusNoUserLogin,
@@ -287,6 +293,7 @@ private:
     bool                                m_export_3mf_cancel{ false };
     bool                                m_is_canceled{ false };
     bool                                m_is_rename_mode{ false };
+    PrintPageMode                       m_print_page_mode{PrintPageMode::PrintPageModePrepare};
     std::string                         m_print_error_msg;
     std::string                         m_print_error_extra;
     std::string                         m_printer_last_select;