From 74040d0dc6127154db83b4c6294a9f84c0fa89b2 Mon Sep 17 00:00:00 2001
From: ZhilkinSerg <ZhilkinSerg@users.noreply.github.com>
Date: Tue, 11 Feb 2020 08:15:39 +0300
Subject: [PATCH] Don't add duplicate options to the page (#37548)

---
 src/cata_tiles.cpp | 15 +++++++++++++++
 src/cata_tiles.h   |  1 +
 src/options.cpp    | 14 ++++++++++++--
 src/sdltiles.cpp   | 21 +--------------------
 4 files changed, 29 insertions(+), 22 deletions(-)

diff --git a/src/cata_tiles.cpp b/src/cata_tiles.cpp
index dc11f3da4cf7a..a27c515e949b7 100644
--- a/src/cata_tiles.cpp
+++ b/src/cata_tiles.cpp
@@ -3618,4 +3618,19 @@ std::vector<options_manager::id_and_option> cata_tiles::build_renderer_list()
     return renderer_names.empty() ? default_renderer_names : renderer_names;
 }
 
+std::vector<options_manager::id_and_option> cata_tiles::build_display_list()
+{
+    std::vector<options_manager::id_and_option> display_names;
+    std::vector<options_manager::id_and_option> default_display_names = {
+        { "0", translate_marker( "Display 0" ) }
+    };
+
+    int numdisplays = SDL_GetNumVideoDisplays();
+    for( int i = 0 ; i < numdisplays ; i++ ) {
+        display_names.emplace_back( std::to_string( i ), std::string( SDL_GetDisplayName( i ) ) );
+    }
+
+    return display_names.empty() ? default_display_names : display_names;
+}
+
 #endif // SDL_TILES
diff --git a/src/cata_tiles.h b/src/cata_tiles.h
index 36d5c869b5e41..45ec9194ce19c 100644
--- a/src/cata_tiles.h
+++ b/src/cata_tiles.h
@@ -476,6 +476,7 @@ class cata_tiles
         void do_tile_loading_report();
         point player_to_screen( const point & ) const;
         static std::vector<options_manager::id_and_option> build_renderer_list();
+        static std::vector<options_manager::id_and_option> build_display_list();
     protected:
         template <typename maptype>
         void tile_loading_report( const maptype &tiletypemap, const std::string &label,
diff --git a/src/options.cpp b/src/options.cpp
index c57a5fc7fd5f4..a18bd1ed94b57 100644
--- a/src/options.cpp
+++ b/src/options.cpp
@@ -135,7 +135,14 @@ void options_manager::addOptionToPage( const std::string &name, const std::strin
 {
     for( Page &p : pages_ ) {
         if( p.id_ == page ) {
+            // Don't add duplicate options to the page
+            for( const cata::optional<std::string> &i : p.items_ ) {
+                if( i.has_value() && i.value() == name ) {
+                    return;
+                }
+            }
             p.items_.emplace_back( name );
+            return;
         }
     }
     // @TODO handle the case when an option has no valid page id (note: consider hidden external options as well)
@@ -1806,10 +1813,13 @@ void options_manager::add_options_graphics()
 
     add_empty_line();
 
+#if defined(TILES)
+    std::vector<options_manager::id_and_option> display_list = cata_tiles::build_display_list();
     add( "DISPLAY", "graphics", translate_marker( "Display" ),
          translate_marker( "Sets which video display will be used to show the game.  Requires restart." ),
-         0, 10000, 0, COPT_CURSES_HIDE
-       );
+         display_list,
+         display_list.front().first, COPT_CURSES_HIDE );
+#endif
 
 #if !defined(__ANDROID__) // Android is always fullscreen
     add( "FULLSCREEN", "graphics", translate_marker( "Fullscreen" ),
diff --git a/src/sdltiles.cpp b/src/sdltiles.cpp
index f25b50c083f70..c9ee7420a7d51 100644
--- a/src/sdltiles.cpp
+++ b/src/sdltiles.cpp
@@ -390,7 +390,7 @@ static void WinCreate()
     }
 #endif
 
-    int display = get_option<int>( "DISPLAY" );
+    int display = std::stoi( get_option<std::string>( "DISPLAY" ) );
     if( display < 0 || display >= SDL_GetNumVideoDisplays() ) {
         display = 0;
     }
@@ -925,23 +925,6 @@ void set_displaybuffer_rendertarget()
     SetRenderTarget( renderer, display_buffer );
 }
 
-// Populate a map with the available video displays and their name
-static void find_videodisplays()
-{
-    std::vector< std::tuple<int, std::string> > displays;
-
-    int numdisplays = SDL_GetNumVideoDisplays();
-    for( int i = 0 ; i < numdisplays ; i++ ) {
-        displays.push_back( std::make_tuple( i, std::string( SDL_GetDisplayName( i ) ) ) );
-    }
-
-    int current_display = get_option<int>( "DISPLAY" );
-    get_options().add( "DISPLAY", "graphics", translate_marker( "Display" ),
-                       translate_marker( "Sets which video display will be used to show the game.  Requires restart." ),
-                       displays, current_display, 0, options_manager::COPT_CURSES_HIDE, true
-                     );
-}
-
 // line_id is one of the LINE_*_C constants
 // FG is a curses color
 void Font::draw_ascii_lines( unsigned char line_id, int drawx, int drawy, int FG ) const
@@ -3529,8 +3512,6 @@ void catacurses::init_interface()
 
     InitSDL();
 
-    find_videodisplays();
-
     init_term_size_and_scaling_factor();
 
     WinCreate();