Implemented FR #7850 - G-Code Substitutions: move [X Delete all] button or ask for confirmation

+ MsgDialog:
* Added processing if the wxNO_DEFAULT and wxCANCEL_DEFAULT flags
* Next improvements of get_wraped_wxString() function

src/slic3r/GUI/MsgDialog.cpp

@@ -94,9 +94,9 @@ wxButton* MsgDialog::get_button(wxWindowID btn_id){
 void MsgDialog::apply_style(long style)
 {
     if (style & wxOK)       add_button(wxID_OK, true);
-    if (style & wxYES)      add_button(wxID_YES, true);
+    if (style & wxYES)      add_button(wxID_YES,   !(style & wxNO_DEFAULT));
-    if (style & wxNO)       add_button(wxID_NO);
+    if (style & wxNO)       add_button(wxID_NO,     (style & wxNO_DEFAULT));
-    if (style & wxCANCEL)   add_button(wxID_CANCEL);
+    if (style & wxCANCEL)   add_button(wxID_CANCEL, (style & wxCANCEL_DEFAULT));
 
     logo->SetBitmap( create_scaled_bitmap(style & wxICON_WARNING        ? "exclamation" :
                                           style & wxICON_INFORMATION    ? "info"        :
@@ -298,25 +298,12 @@ wxString get_wraped_wxString(const wxString& in, size_t line_len /*=80*/)
     for (size_t i = 0; i < in.size();) {
         // Overwrite the character (space or newline) starting at ibreak?
         bool   overwrite = false;
-#if wxUSE_UNICODE_WCHAR
-        // On Windows, most likely the internal representation of wxString is wide char.
-        size_t end       = std::min(in.size(), i + line_len);
-        size_t ibreak    = end;
-        for (size_t j = i; j < end; ++ j) {
-            if (bool newline = in[j] == '\n'; in[j] == ' ' || in[j] == '\t' || newline) {
-                ibreak = j;
-                overwrite = true;
-                if (newline)
-                    break;
-            } else if (in[j] == '/' || in[j] == '\\')
-                ibreak = j + 1;
-        }
-#else 
         // UTF8 representation of wxString.
         // Where to break the line, index of character at the start of a UTF-8 sequence.
         size_t ibreak    = size_t(-1);
         // Overwrite the character at ibreak (it is a whitespace) or not?
-        for (size_t cnt = 0, j = i; j < in.size();) {
+        size_t j = i;
+        for (size_t cnt = 0; j < in.size();) {
             if (bool newline = in[j] == '\n'; in[j] == ' ' || in[j] == '\t' || newline) {
                 // Overwrite the whitespace.
                 ibreak    = j ++;
@@ -326,15 +313,22 @@ wxString get_wraped_wxString(const wxString& in, size_t line_len /*=80*/)
             } else if (in[j] == '/') {
                 // Insert after the slash.
                 ibreak    = ++ j;
+                overwrite = false;
             } else
                 j += get_utf8_sequence_length(in.c_str() + j, in.size() - j);
             if (++ cnt == line_len) {
-                if (ibreak == size_t(-1))
+                if (ibreak == size_t(-1)) {
                     ibreak    = j;
+                    overwrite = false;
+                }
                 break;
             }
         }
-#endif
+        if (j == in.size()) {
+            out.append(in.begin() + i, in.end());
+            break;
+        }
+        assert(ibreak != size_t(-1));
         out.append(in.begin() + i, in.begin() + ibreak);
         out.append('\n');
         i = ibreak;

src/slic3r/GUI/Tab.cpp

@@ -4139,7 +4139,10 @@ wxSizer* TabPrint::create_manage_substitution_widget(wxWindow* parent)
     });
 
     create_btn(&m_del_all_substitutions_btn, _L("Delete all"), "cross");
-    m_del_all_substitutions_btn->Bind(wxEVT_BUTTON, [this](wxCommandEvent e) {
+    m_del_all_substitutions_btn->Bind(wxEVT_BUTTON, [this, parent](wxCommandEvent e) {
+        if (MessageDialog(parent, _L("Are you sure you want to delete all substitutions?"), SLIC3R_APP_NAME, wxYES_NO | wxICON_QUESTION).
+            ShowModal() != wxID_YES)
+            return;
         m_subst_manager.delete_all();
         m_del_all_substitutions_btn->Hide();
     });