Added popup window to show a news message that has

'important="true"' specified. The message is only
shown once.


git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@12345 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/addons/news_manager.cpp

@@ -109,6 +109,8 @@ void NewsManager::updateNews(const XMLNode *xml, const std::string &filename)
         node->get("content", &news);
         int id=-1;
         node->get("id", &id);
+        bool important=false;
+        node->get("important", &important);
 
         std::string cond;
         node->get("condition", &cond);
@@ -125,7 +127,7 @@ void NewsManager::updateNews(const XMLNode *xml, const std::string &filename)
             if(id>UserConfigParams::m_ignore_message_id)
 #endif
             {
-                NewsMessage n(core::stringw(news.c_str()), id);
+                NewsMessage n(core::stringw(news.c_str()), id, important);
                 m_news.getData().push_back(n);
             }
         }   // m_news.lock()
@@ -165,6 +167,40 @@ void NewsManager::addNewsMessage(const core::stringw &s)
     m_news.getData().push_back(n);
     m_news.unlock();
 }   // addNewsMessage
+// ----------------------------------------------------------------------------
+/** Returns the  important message with the smallest id that has not been 
+ *  shown, or NULL if no important (not shown before) message exists atm. The
+ *  user config is updated to store the last important message id shown. 
+ */
+const core::stringw NewsManager::getImportantMessage()
+{
+    int index = -1;
+    m_news.lock();
+    for(unsigned int i=0; i<m_news.getData().size(); i++)
+    {
+        const NewsMessage &m = m_news.getData()[i];
+        // 
+        if(m.isImportant() && 
+           m.getMessageId()>UserConfigParams::m_last_important_message_id  &&
+            (index == -1 || 
+            m.getMessageId() < m_news.getData()[index].getMessageId() )     )
+        {
+            index = i;
+        }   // if new unshown important message with smaller message id
+    }
+    core::stringw message("");
+    if(index>=0)
+    {
+        const NewsMessage &m = m_news.getData()[index];
+        message = m.getNews();
+        UserConfigParams::m_last_important_message_id = m.getMessageId();
+
+    }
+    m_news.unlock();
+
+    return message;
+}   // getImportantMessage
+
 // ----------------------------------------------------------------------------
 /** Returns the next loaded news message. It will 'wrap around', i.e.
  *  if there is only one message it will be returned over and over again.

src/addons/news_manager.hpp

@@ -39,19 +39,23 @@ private:
     // a message id and a display count.
     class NewsMessage
     {
-        // The actual news message
+        /** The actual news message. */
         core::stringw m_news;
-        // A message id used to store some information in the
-        // user config file.
+        /** A message id used to store some information in the
+         *  user config file. */
         int           m_message_id;
-        // Counts how often a message has been displayed.
+        /** Counts how often a message has been displayed. */
         int           m_display_count;
+        /** True if this is an important (i.e. popup) message. */
+        bool          m_important;
+
     public:
-        NewsMessage(const core::stringw &m, int id)
+        NewsMessage(const core::stringw &m, int id, bool important=false)
         {
             m_news          = m;
             m_message_id    = id;
             m_display_count = 0;
+            m_important     = important;
         }   // NewsMessage
         /** Returns the news message. */
         const core::stringw& getNews() const {return m_news;}
@@ -63,6 +67,8 @@ private:
         int getDisplayCount() const {return m_display_count; }
         /** Sets the display count for this message. */
         void setDisplayCount(int n) {m_display_count = n; }
+        /** Returns if this is an important message. */
+        bool isImportant() const { return m_important; }
     };   // NewsMessage
 
     mutable Synchronised< std::vector<NewsMessage> > m_news;
@@ -90,6 +96,8 @@ public:
                  ~NewsManager();
     const core::stringw
                   getNextNewsMessage();
+    const core::stringw 
+                  getImportantMessage();
     void          init();
     void          addNewsMessage(const core::stringw &s);
 

src/config/user_config.hpp

@@ -586,6 +586,12 @@ namespace UserConfigParams
                                                "Ignore all messages with this "
                                                "id and lower") );
 
+    PARAM_PREFIX IntUserConfigParam         m_last_important_message_id
+            PARAM_DEFAULT(  IntUserConfigParam(-1, "last_important_message_id", 
+                                               &m_addon_group,
+                                               "Don't show important message "
+                                               "with this or a lower id again") );
+
     PARAM_PREFIX IntUserConfigParam        m_internet_status
             PARAM_DEFAULT(  IntUserConfigParam(0, "enable_internet",
                                                &m_addon_group,

src/main.cpp

@@ -1387,6 +1387,18 @@ int main(int argc, char *argv[] )
             StateManager::get()->enterGameState();
         }
 
+
+        // If an important news message exists it is shown in a popup dialog.
+        const core::stringw important_message = 
+                                           news_manager->getImportantMessage();
+        if(important_message!="")
+        {
+            new MessageDialog(important_message,
+                              MessageDialog::MESSAGE_DIALOG_OK,
+                              NULL, true);
+        }   // if important_message
+
+
         // Replay a race
         // =============
         if(history->replayHistory())