Adds functionality for sorting FriendWidgets alphabetically in the

friends list. Widgets are sorted upon being added to the friends list in
the first place, and re-sorted if a user changes their name, or if a
user is given an alias.

-Friend now inherits from QObject
-Friend objects now emit a signal when their display name is changed
-FriendListWidget::moveWidget() is now a slot

src/friend.cpp

@@ -53,6 +53,8 @@ void Friend::setName(QString name)
 
         if (widget->isActive())
             GUI::setWindowTitle(name);
+        
+        emit displayedNameChanged(getFriendWidget(), getStatus(), hasNewEvents);
     }
 }
 
@@ -66,6 +68,8 @@ void Friend::setAlias(QString name)
 
     if (widget->isActive())
             GUI::setWindowTitle(dispName);
+    
+    emit displayedNameChanged(getFriendWidget(), getStatus(), hasNewEvents);
 }
 
 void Friend::setStatusMessage(QString message)

src/friend.h

@@ -17,14 +17,16 @@
 #ifndef FRIEND_H
 #define FRIEND_H
 
+#include <QObject>
 #include <QString>
 #include "corestructs.h"
 
 struct FriendWidget;
 class ChatForm;
 
-struct Friend
+struct Friend : QObject
 {
+    Q_OBJECT
 public:
     Friend(int FriendId, const ToxID &UserId);
     Friend(const Friend& other)=delete;
@@ -49,6 +51,9 @@ public:
     ChatForm *getChatForm();
     FriendWidget *getFriendWidget();
 
+signals:
+    void displayedNameChanged(FriendWidget* widget, Status s, int hasNewEvents);
+
 private:
     QString userAlias, userName;
     ToxID userID;

src/widget/friendlistwidget.cpp

@@ -16,6 +16,9 @@
 #include "friendlistwidget.h"
 #include <QDebug>
 #include <QGridLayout>
+#include "src/friend.h"
+#include "src/friendlist.h"
+#include "src/widget/friendwidget.h"
 
 FriendListWidget::FriendListWidget(QWidget *parent) :
     QWidget(parent)
@@ -63,9 +66,18 @@ QVBoxLayout* FriendListWidget::getFriendLayout(Status s)
 
 void FriendListWidget::moveWidget(QWidget *w, Status s, int hasNewEvents)
 {
-    mainLayout->removeWidget(w);
-    if (hasNewEvents == 0)
-        getFriendLayout(s)->addWidget(w);
-    else
-        getFriendLayout(s)->insertWidget(0, w);
+    getFriendLayout(s)->removeWidget(w);
+    QVBoxLayout* l = getFriendLayout(s);
+    Friend* g = FriendList::findFriend(dynamic_cast<FriendWidget*>(w)->friendId);
+    for(int i = 0; i < l->count(); i++){
+        FriendWidget* w1 = dynamic_cast<FriendWidget*>(l->itemAt(i)->widget());
+        if(w1 != NULL){
+            Friend* f = FriendList::findFriend(w1->friendId);
+            if(f->getDisplayedName().localeAwareCompare(g->getDisplayedName()) > 0){
+                l->insertWidget(i,w);
+                return;
+            }
+        }
+    }
+    l->addWidget(w);
 }

src/widget/friendlistwidget.h

@@ -33,11 +33,11 @@ public:
 
     QVBoxLayout* getGroupLayout();
     QVBoxLayout* getFriendLayout(Status s);
-    void moveWidget(QWidget *w, Status s, int hasNewEvents);
 
 signals:
 
 public slots:
+    void moveWidget(QWidget *w, Status s, int hasNewEvents);
 
 private:
     QHash<int, QVBoxLayout*> layouts;

src/widget/widget.cpp

@@ -559,10 +559,10 @@ void Widget::addFriend(int friendId, const QString &userId)
     //qDebug() << "Widget: Adding friend with id" << userId;
     ToxID userToxId = ToxID::fromString(userId);
     Friend* newfriend = FriendList::addFriend(friendId, userToxId);
-    QLayout* layout = contactListWidget->getFriendLayout(Status::Offline);
-    layout->addWidget(newfriend->getFriendWidget());
+    contactListWidget->moveWidget(newfriend->getFriendWidget(),Status::Offline,0);
 
     Core* core = Nexus::getCore();
+    connect(newfriend, &Friend::displayedNameChanged, contactListWidget, &FriendListWidget::moveWidget);
     connect(settingsWidget, &SettingsWidget::compactToggled, newfriend->getFriendWidget(), &GenericChatroomWidget::onCompactChanged);
     connect(newfriend->getFriendWidget(), SIGNAL(chatroomWidgetClicked(GenericChatroomWidget*)), this, SLOT(onChatroomWidgetClicked(GenericChatroomWidget*)));
     connect(newfriend->getFriendWidget(), SIGNAL(removeFriend(int)), this, SLOT(removeFriend(int)));