Added new message system to show achievements in race (and not as a

dialog later). Work in progress ... it doesn't look particulary nice yet ;)

data/skins/Ocean.stkskin

@@ -68,6 +68,14 @@ when the border that intersect at this corner are enabled.
 <!--  Stateless -->
 <element type="background" image="ocean/background.jpg" />
 
+<element type="achievement-message" image="ocean/glassbutton.png"
+      left_border="13" right_border="13" top_border="13" bottom_border="13"
+      preserve_h_aspect_ratios="true" hborder_out_portion="0" vborder_out_portion="0"/>
+
+<element type="friend-message" image="ocean/glassbutton.png"
+      left_border="13" right_border="13" top_border="13" bottom_border="13"
+      preserve_h_aspect_ratios="true" hborder_out_portion="0" vborder_out_portion="0"/>
+
 <element type="button" state="neutral" image="ocean/glassbutton.png"
       left_border="13" right_border="13" top_border="13" bottom_border="13"
       preserve_h_aspect_ratios="true" hborder_out_portion="0" vborder_out_portion="0"/>

data/skins/Peach.stkskin

@@ -68,6 +68,14 @@ when the border that intersect at this corner are enabled.
 <!--  Stateless -->
 <element type="background" image="peach/background.jpg" />
 
+<element type="achievement-message" image="peach/glassbutton.png"
+      left_border="13" right_border="13" top_border="13" bottom_border="13"
+      preserve_h_aspect_ratios="true" hborder_out_portion="0" vborder_out_portion="0"/>
+
+<element type="friend-message" image="peach/glassbutton.png"
+      left_border="13" right_border="13" top_border="13" bottom_border="13"
+      preserve_h_aspect_ratios="true" hborder_out_portion="0" vborder_out_portion="0"/>
+
 <element type="button" state="neutral" image="peach/glassbutton.png"
       left_border="13" right_border="13" top_border="13" bottom_border="13"
       preserve_h_aspect_ratios="true" hborder_out_portion="0" vborder_out_portion="0"/>

src/achievements/achievement.cpp

@@ -21,7 +21,7 @@
 #include "achievements/achievement.hpp"
 
 #include "achievements/achievement_info.hpp"
-#include "guiengine/dialog_queue.hpp"
+#include "guiengine/message_queue.hpp"
 #include "io/utf_writer.hpp"
 #include "config/player_manager.hpp"
 #include "states_screens/dialogs/notification_dialog.hpp"
@@ -202,8 +202,7 @@ void Achievement::check()
         //show achievement
         core::stringw s = StringUtils::insertValues(_("Completed achievement \"%s\"."),
                                                     m_achievement_info->getTitle());
-        GUIEngine::DialogQueue::get()->pushDialog(
+        MessageQueue::add(MessageQueue::MT_ACHIEVEMENT, s);
-            new NotificationDialog(NotificationDialog::T_Achievements, s));
 
         // Sends a confirmation to the server that an achievement has been
         // completed, if a user is signed in.

src/guiengine/engine.cpp

@@ -662,6 +662,7 @@ namespace GUIEngine
 #include "io/file_manager.hpp"
 #include "guiengine/event_handler.hpp"
 #include "guiengine/modaldialog.hpp"
+#include "guiengine/message_queue.hpp"
 #include "guiengine/scalable_font.hpp"
 #include "guiengine/screen.hpp"
 #include "guiengine/skin.hpp"
@@ -1189,6 +1190,8 @@ namespace GUIEngine
         // further render)
         g_env->drawAll();
 
+        MessageQueue::update(elapsed_time);
+
         // ---- some menus may need updating
         if (gamestate != GAME)
         {

src/guiengine/message_queue.cpp

@@ -0,0 +1,161 @@
+//  SuperTuxKart - a fun racing game with go-kart
+//  Copyright (C) 2014 Joerg Henrichs
+//
+//  This program is free software; you can redistribute it and/or
+//  modify it under the terms of the GNU General Public License
+//  as published by the Free Software Foundation; either version 3
+//  of the License, or (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+/**
+  \page addons Addons
+  */
+
+#include "guiengine/message_queue.hpp"
+
+#include "config/user_config.hpp"
+#include "guiengine/engine.hpp"
+#include "guiengine/scalable_font.hpp"
+#include "guiengine/skin.hpp"
+
+#include "IGUIElement.h"
+
+using namespace GUIEngine;
+
+namespace MessageQueue
+{
+
+/** A small helper class to store and sort messages to be displayed. */
+class Message
+{
+private:
+    /** The type of the message. */
+    MessageQueue::MessageType m_message_type;
+    /** The message. */
+    core::stringw m_message;
+
+public:
+    Message(MessageQueue::MessageType mt, const core::stringw &message)
+    {
+        m_message_type = mt;
+        m_message      = message;
+    }   // Message
+    // --------------------------------------------------------------------
+    bool operator<(const Message &rhs) const
+    {
+        return m_message_type < rhs.m_message_type;
+    }   // operator()
+    // --------------------------------------------------------------------
+    /** Returns the message. */
+    const core::stringw & getMessage() const { return m_message; }
+    // --------------------------------------------------------------------
+    MessageQueue::MessageType getMessageType() const { return m_message_type; }
+};   // class Message
+
+// ============================================================================
+/** A function class to compare messages, required for priority_queue. */
+class CompareMessages
+{
+public:
+    bool operator() (const Message *a, const Message *b) const
+    {
+        return a->getMessageType() < b->getMessageType();
+    }   // operator ()
+};   // operator()
+
+
+// ============================================================================
+/** List of all messages. */
+std::priority_queue<Message*, std::vector<Message*>, 
+                   CompareMessages> g_all_messages;
+
+/** How long the current message has been displayed. */
+float        g_current_display_time = -1.0f;
+
+/** How long the current message should be displaed. */
+float        g_max_display_time     = -1.0f;
+
+/** The label widget used to show the current message. */
+SkinWidgetContainer *g_container    = NULL;
+core::recti g_area;
+
+// ============================================================================
+
+void createLabel(const Message *message)
+{
+    if(!g_container)
+        g_container = new SkinWidgetContainer();
+
+    gui::ScalableFont *font = GUIEngine::getFont();
+    core::dimension2du dim = font->getDimension(message->getMessage().c_str());
+
+    g_current_display_time = 0.0f;
+        // Maybe make this time dependent on message length as well?
+    g_max_display_time     = 5.0f;
+    int x = (UserConfigParams::m_width - dim.Width) / 2;
+    int y = UserConfigParams::m_height - int(1.5f*dim.Height);
+    g_area = irr::core::recti(x, y, x+dim.Width, y+dim.Height);
+}   // createLabel
+
+// ----------------------------------------------------------------------------
+/** Adds a message to the message queue.
+ *  \param mt The MessageType of the message.
+ *  \param message The actual message.
+ */
+void MessageQueue::add(MessageType mt, const core::stringw &message)
+{
+    Message *m = new Message(mt, message);
+    if(g_all_messages.size()==0)
+    {
+        createLabel(m);
+    }
+    g_all_messages.push(m);
+}   // add
+
+// ----------------------------------------------------------------------------
+/** Update function called from the GUIEngine to handle displaying of the 
+ *  messages. It will make sure that each message is shown for a certain
+ *  amount of time, before it is discarded and the next message (if any)
+ *  is displayed.
+ *  \param dt Time step size.
+ */
+void MessageQueue::update(float dt)
+{
+    if(g_all_messages.size()==0) return;
+
+    g_current_display_time += dt;
+    if(g_current_display_time > g_max_display_time)
+    {
+        Message *last= g_all_messages.top();
+        g_all_messages.pop();
+        delete last;
+
+        if(g_all_messages.size()==0) 
+        {
+            return;
+        }
+        createLabel(g_all_messages.top());
+    }
+
+    Message *current = g_all_messages.top();
+    std::string type = current->getMessageType() == MT_ACHIEVEMENT 
+                     ? "achievement-message"
+                     : "friend-message";
+    GUIEngine::getSkin()->drawMessage(g_container, g_area, type);
+    gui::ScalableFont *font = GUIEngine::getFont();
+    
+    video::SColor color(255, 0, 0, 0);
+    font->draw(current->getMessage(), g_area, color, true, true);
+    
+}   // update
+
+}   // namespace GUIEngine
+
+// ----------------------------------------------------------------------------

src/guiengine/message_queue.hpp

@@ -0,0 +1,41 @@
+//
+//  SuperTuxKart - a fun racing game with go-kart
+//  Copyright (C) 2014 Joerg Henrichs
+//
+//  This program is free software; you can redistribute it and/or
+//  modify it under the terms of the GNU General Public License
+//  as published by the Free Software Foundation; either version 3
+//  of the License, or (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+#ifndef HEADER_MESSAGE_QUEUE_HPP
+#define HEADER_MESSAGE_QUEUE_HPP
+
+#include "guiengine/widgets/label_widget.hpp"
+
+#include "irrString.h"
+
+#include <queue>
+#include <vector>
+
+using namespace irr;
+
+namespace MessageQueue
+{
+    /** The various message type which can be shown (which might use a
+     *  different look. */
+    enum MessageType {MT_ACHIEVEMENT, MT_FRIEND};
+
+    void add(MessageType mt, const core::stringw &message);
+    void update(float dt);
+
+};   // namespace GUIEngine
+#endif

src/guiengine/skin.cpp

@@ -373,6 +373,20 @@ void Skin::drawBgImage()
     irr_driver->getVideoDriver()->enableMaterial2D(false);
 }   // drawBgImage
 
+// ----------------------------------------------------------------------------
+/** Draws a background box for an in-game notification message. Example would
+ *  be an achievement, or friends comming online.
+ *  \param w The SkinWidgetContainer for the outline.
+ *  \param dest The destination rectangle to use.
+ *  \param type The type of the message (achievement or friend).
+ */
+void Skin::drawMessage(SkinWidgetContainer* w, const core::recti &dest,
+                       const std::string &type)
+{
+    drawBoxFromStretchableTexture(w, dest,
+                             SkinConfig::m_render_params[type+"::neutral"]);
+}   // drawMessage
+
 // ----------------------------------------------------------------------------
 void Skin::drawBoxFromStretchableTexture(SkinWidgetContainer* w,
                                          const core::recti &dest,

src/guiengine/skin.hpp

@@ -394,7 +394,7 @@ namespace GUIEngine
         virtual const wchar_t*
                              getDefaultText(gui::EGUI_DEFAULT_TEXT text) const;
         virtual gui::IGUIFont* getFont(gui::EGUI_DEFAULT_FONT which=
-                                                     gui::EGDF_DEFAULT) const ;
+                                                     gui::EGDF_DEFAULT) const;
         virtual u32  getIcon (gui::EGUI_DEFAULT_ICON icon) const ;
         virtual s32  getSize (gui::EGUI_DEFAULT_SIZE size) const ;
         virtual gui::IGUISpriteBank *  getSpriteBank () const ;
@@ -409,6 +409,8 @@ namespace GUIEngine
         virtual void setSpriteBank (gui::IGUISpriteBank *bank);
 
         void drawTooltips();
+        void drawMessage(SkinWidgetContainer* w, const core::recti &dest,
+                         const std::string &type);
 
         video::ITexture* getImage(const char* name);
 

src/online/online_player_profile.cpp

@@ -22,7 +22,7 @@
 #include "achievements/achievements_manager.hpp"
 #include "config/player_manager.hpp"
 #include "config/user_config.hpp"
-#include "guiengine/dialog_queue.hpp"
+#include "guiengine/message_queue.hpp"
 #include "guiengine/screen.hpp"
 #include "online/online_profile.hpp"
 #include "online/profile_manager.hpp"
@@ -379,11 +379,7 @@ namespace Online
                             message = _("%d friends are now online.",
                                         to_notify.size());
                         }
-                        NotificationDialog *dia =
+                        MessageQueue::add(MessageQueue::MT_FRIEND, message);
-                            new NotificationDialog(NotificationDialog::T_Friends,
-                                                   message);
-                        GUIEngine::DialogQueue::get()->pushDialog(dia, false);
-                        OnlineProfileFriends::getInstance()->refreshFriendsList();
                     }
                     else if(went_offline)
                     {
@@ -422,10 +418,7 @@ namespace Online
                 {
                     message = _("You have a new friend request!");
                 }
-                NotificationDialog *dia =
+                MessageQueue::add(MessageQueue::MT_FRIEND, message);
-                    new NotificationDialog(NotificationDialog::T_Friends,
-                                           message);
-                GUIEngine::DialogQueue::get()->pushDialog(dia, false);
                 OnlineProfileFriends::getInstance()->refreshFriendsList();
             }
         }