FIX: fix display of long filename in preview-only hint

Change-Id: Ib365a39b262cbf03b14eeefa64e3e46d1b48306e

src/slic3r/GUI/MainFrame.cpp

@@ -979,7 +979,10 @@ bool MainFrame::preview_only_hint()
         });
         confirm_dlg.update_btn_label(_L("Yes"), _L("No"));
         auto filename = wxString((m_plater->get_preview_only_filename()).c_str(), wxConvUTF8);
-        confirm_dlg.update_text(filename + _L(" will be closed before creating a new model. Do you want to continue?"));
+        //if size of filename is beyond limit
+        auto format_filename = confirm_dlg.format_text(filename, FromDIP(240));
+
+        confirm_dlg.update_text(format_filename + _L(" will be closed before creating a new model. Do you want to continue?"));
         confirm_dlg.on_show();
         if (preview_only_to_editor) {
             m_plater->new_project();

src/slic3r/GUI/ReleaseNote.cpp

@@ -667,6 +667,25 @@ void ConfirmBeforeSendDialog::update_btn_label(wxString ok_btn_text, wxString ca
     rescale();
 }
 
+wxString ConfirmBeforeSendDialog::format_text(wxString str, int warp)
+{
+    Label st (this, str);
+    wxString out_txt      = str;
+    wxString count_txt    = "";
+    int      new_line_pos = 0;
+
+    for (int i = 0; i < str.length(); i++) {
+        auto text_size = st.GetTextExtent(count_txt);
+        if (text_size.x < warp) {
+            count_txt += str[i];
+        } else {
+            out_txt.insert(i - 1, '\n');
+            count_txt = "";
+        }
+    }
+    return out_txt;
+}
+
 ConfirmBeforeSendDialog::~ConfirmBeforeSendDialog()
 {
 

src/slic3r/GUI/ReleaseNote.hpp

@@ -138,6 +138,7 @@ public:
     void on_show();
     void on_hide();
     void update_btn_label(wxString ok_btn_text, wxString cancel_btn_text);
+    wxString format_text(wxString str, int warp);
     void rescale();
     ~ConfirmBeforeSendDialog();
     void on_dpi_changed(const wxRect& suggested_rect);