Return pointer to MenuItem when creating one

[supertux.git] / src / gui / menu.cpp

diff --git a/src/gui/menu.cpp b/src/gui/menu.cpp
index 49ebd64..e468543 100644 (file)
--- a/src/gui/menu.cpp
+++ b/src/gui/menu.cpp
@@ -182,6 +182,12 @@ MenuItem::change_input(const  std::string& text_)
   input = text_;
 }
 
+void
+MenuItem::set_help(const std::string& help_text)
+{
+  help = help_text;
+}
+
 std::string MenuItem::get_input_with_symbol(bool active_item)
 {
   if(!active_item) {
@@ -206,8 +212,12 @@ Menu::~Menu()
   for(std::vector<MenuItem*>::iterator i = items.begin();
       i != items.end(); ++i)
     delete *i;
+
   if(current_ == this)
     current_ = NULL;
+
+  if (previous == this)
+    previous = NULL;
 }
 
 Menu::Menu()
@@ -257,21 +267,24 @@ Menu::additem(MenuItem* item)
   }
 }
 
-void
+MenuItem*
 Menu::add_hl()
 {
-  additem(new MenuItem(MN_HL));
+  MenuItem* item = new MenuItem(MN_HL);
+  additem(item);
+  return item;
 }
 
-void
+MenuItem*
 Menu::add_label(const std::string& text)
 {
   MenuItem* item = new MenuItem(MN_LABEL);
   item->text = text;
   additem(item);
+  return item;
 }
 
-void
+MenuItem*
 Menu::add_controlfield(int id, const std::string& text,
                const std::string& mapping)
 {
@@ -279,48 +292,54 @@ Menu::add_controlfield(int id, const std::string& text,
   item->change_text(text);
        item->change_input(mapping);
   additem(item);
+  return item;
 }
 
-void
+MenuItem*
 Menu::add_entry(int id, const std::string& text)
 {
   MenuItem* item = new MenuItem(MN_ACTION, id);
   item->text = text;
   additem(item);
+  return item;
 }
 
-void
+MenuItem*
 Menu::add_deactive(int id, const std::string& text)
 {
   MenuItem* item = new MenuItem(MN_DEACTIVE, id);
   item->text = text;
   additem(item);
+  return item;
 }
 
-void
+MenuItem*
 Menu::add_toggle(int id, const std::string& text, bool toogled)
 {
   MenuItem* item = new MenuItem(MN_TOGGLE, id);
   item->text = text;
   item->toggled = toogled;
   additem(item);
+  return item;
 }
 
-void
+MenuItem*
 Menu::add_back(const std::string& text)
 {
   MenuItem* item = new MenuItem(MN_BACK);
   item->text = text;
   additem(item);
+  return item;
 }
 
-void
+MenuItem*
 Menu::add_submenu(const std::string& text, Menu* submenu, int id)
 {
   MenuItem* item = new MenuItem(MN_GOTO, id);
   item->text = text;
   item->target_menu = submenu;
   additem(item);
+  return item;
 }
 
 void
@@ -338,6 +357,13 @@ Menu::clear()
 void
 Menu::update()
 {
+  int menu_height = get_height();
+  if (menu_height > SCREEN_HEIGHT)
+    { // Scrolling
+      int scroll_offset = (menu_height - SCREEN_HEIGHT) / 2 + 32;
+      pos_y = SCREEN_HEIGHT/2 - scroll_offset * ((float(active_item) / (items.size()-1)) - 0.5f) * 2.0f;
+    }
+
   effect_progress = (real_time - effect_start_time) * 6.0f;
 
   if(effect_progress >= 1.0f) {
@@ -558,7 +584,7 @@ Menu::draw_item(DrawingContext& context, int index)
     case MN_DEACTIVE:
       {
         context.draw_text(deactive_font, pitem.text,
-                          Vector(SCREEN_WIDTH/2, y_pos - int(deactive_font->get_height()/2)),
+                          Vector(pos_x, y_pos - int(deactive_font->get_height()/2)),
                           ALIGN_CENTER, LAYER_GUI);
         break;
       }
@@ -580,7 +606,7 @@ Menu::draw_item(DrawingContext& context, int index)
     case MN_LABEL:
       {
         context.draw_text(label_font, pitem.text,
-                          Vector(SCREEN_WIDTH/2, y_pos - int(label_font->get_height()/2)),
+                          Vector(pos_x, y_pos - int(label_font->get_height()/2)),
                           ALIGN_CENTER, LAYER_GUI);
         break;
       }
@@ -588,8 +614,8 @@ Menu::draw_item(DrawingContext& context, int index)
     case MN_NUMFIELD:
     case MN_CONTROLFIELD:
       {
-        float left  = SCREEN_WIDTH/2 - menu_width/2 + 16;
-        float right = SCREEN_WIDTH/2 + menu_width/2 - 16;
+        float left  = pos_x - menu_width/2 + 16;
+        float right = pos_x + menu_width/2 - 16;
 
         if(pitem.kind == MN_TEXTFIELD || pitem.kind == MN_NUMFIELD)
           {
@@ -639,17 +665,17 @@ Menu::draw_item(DrawingContext& context, int index)
           Color(0, 0, 0, 0.5f), LAYER_GUI - 5);
 
         context.draw_text(text_font, pitem.list[pitem.selected],
-                                 Vector(SCREEN_WIDTH/2 + text_pos, y_pos - int(text_font->get_height()/2)),
+                                 Vector(pos_x + text_pos, y_pos - int(text_font->get_height()/2)),
                                  ALIGN_CENTER, LAYER_GUI);
         context.draw_text(text_font, pitem.text,
-                                 Vector(SCREEN_WIDTH/2  + list_pos_2/2, y_pos - int(text_font->get_height()/2)),
+                                 Vector(pos_x  + list_pos_2/2, y_pos - int(text_font->get_height()/2)),
                                  ALIGN_CENTER, LAYER_GUI);
         break;
       }
     case MN_BACK:
       {
         context.draw_text(text_font, pitem.text,
-                          Vector(SCREEN_WIDTH/2, y_pos - int(text_font->get_height()/2)),
+                          Vector(pos_x, y_pos - int(text_font->get_height()/2)),
                           ALIGN_CENTER, LAYER_GUI);
         context.draw_surface(back.get(),
                              Vector(x_pos + text_width/2  + 16, y_pos - 8),
@@ -660,7 +686,7 @@ Menu::draw_item(DrawingContext& context, int index)
     case MN_TOGGLE:
       {
         context.draw_text(text_font, pitem.text,
-                          Vector(SCREEN_WIDTH/2 - menu_width/2 + 16, y_pos - (text_font->get_height()/2)),
+                          Vector(pos_x - menu_width/2 + 16, y_pos - (text_font->get_height()/2)),
                           ALIGN_LEFT, LAYER_GUI);
 
         if(pitem.toggled)
@@ -675,13 +701,13 @@ Menu::draw_item(DrawingContext& context, int index)
       }
     case MN_ACTION:
       context.draw_text(text_font, pitem.text,
-                        Vector(SCREEN_WIDTH/2, y_pos - int(text_font->get_height()/2)),
+                        Vector(pos_x, y_pos - int(text_font->get_height()/2)),
                         ALIGN_CENTER, LAYER_GUI);
       break;
 
     case MN_GOTO:
       context.draw_text(text_font, pitem.text,
-                        Vector(SCREEN_WIDTH/2, y_pos - int(text_font->get_height()/2)),
+                        Vector(pos_x, y_pos - int(text_font->get_height()/2)),
                         ALIGN_CENTER, LAYER_GUI);
       break;
     }
@@ -802,6 +828,15 @@ Menu::is_toggled(int id) const
   return get_item_by_id(id).toggled;
 }
 
+Menu*
+Menu::get_parent() const
+{
+  if (last_menus.empty())
+    return 0;
+  else
+    return last_menus.back();
+}
+
 /* Check for menu event */
 void
 Menu::event(const SDL_Event& event)