add Message received

messageeditarea.cpp

@@ -198,8 +198,10 @@ void MessageEditArea::initSignalSlot()
 
     //关联“发送文本消息”信号槽
     connect(sendTextButton, &QPushButton::clicked, this, &MessageEditArea::sendTextMessage);
-
     connect(dataCenter, &DataCenter::sendMessageDone, this, &MessageEditArea::addSelfMessage);
+
+    //关联收到消息的信号槽
+    connect(dataCenter, &DataCenter::receiveMessageDone, this, &MessageEditArea::addOtherMessage);
 }
 
 void MessageEditArea::sendTextMessage()
@@ -249,6 +251,22 @@ void MessageEditArea::addSelfMessage(MessageType messageType, const QByteArray&
     emit dataCenter->updateLastMessage(currentChatSessionId);
 }
 
+void MessageEditArea::addOtherMessage(const model::Message& message)
+{
+    //通过主界面，拿到消息展示区
+    MainWidget* mainWidget = MainWidget::getInstance();
+    MessageShowArea* messageShowArea = mainWidget->getMessageShowArea();
+
+    //把收到的新消息，添加到消息展示区
+    messageShowArea->addMessage(true, message);
+
+    //控制消息展示区的滚动条，把窗口滚动到末尾
+    messageShowArea->scrollToEnd();
+
+    //提示一个收到消息
+    Toast::showMessage("收到新消息！");
+}
+
 
 //bool MessageEditArea::eventFilter(QObject* obj, QEvent* event)
 //{