Add initial support for unread message count

- Add border width on Badge

include/HistoryView.h

@@ -54,7 +54,7 @@ public:
 	~HistoryView();
 
 	void addHistoryItem(const Event &event, const QString &color, bool with_sender);
-	void addEvents(const QList<Event> &events);
+	int addEvents(const QList<Event> &events);
 	void addUserTextMessage(const QString &msg, int txn_id);
 	void updatePendingMessage(int txn_id, QString event_id);
 	void clear();

include/HistoryViewManager.h

@@ -44,6 +44,9 @@ public:
 	static QString getUserColor(const QString &userid);
 	static QMap<QString, QString> NICK_COLORS;
 
+signals:
+	void unreadMessages(QString roomid, int count);
+
 public slots:
 	void setHistoryView(const RoomInfo &info);
 	void sendTextMessage(const QString &msg);

include/RoomInfoListItem.h

@@ -24,6 +24,7 @@
 #include <QtWidgets/QWidget>
 
 #include "Avatar.h"
+#include "Badge.h"
 #include "RippleOverlay.h"
 #include "RoomInfo.h"
 
@@ -35,6 +36,9 @@ public:
 	RoomInfoListItem(RoomInfo info, QWidget *parent = 0);
 	~RoomInfoListItem();
 
+	void updateUnreadMessageCount(int count);
+	void clearUnreadMessageCount();
+
 	inline bool isPressed();
 	inline RoomInfo info();
 	inline void setAvatar(const QImage &avatar_image);
@@ -67,12 +71,15 @@ private:
 	QLabel *roomTopic_;
 
 	Avatar *roomAvatar_;
+	Badge *unreadMessagesBadge_;
 
 	QString pressed_style_;
 	QString normal_style_;
 
 	bool is_pressed_;
+
 	int max_height_;
+	int unread_msg_count_;
 };
 
 inline bool RoomInfoListItem::isPressed()

include/RoomList.h

@@ -52,6 +52,7 @@ signals:
 public slots:
 	void updateRoomAvatar(const QString &roomid, const QPixmap &img);
 	void highlightSelectedRoom(const RoomInfo &info);
+	void updateUnreadMessageCount(const QString &roomid, int count);
 
 private:
 	Ui::RoomList *ui;

include/ui/Badge.h

@@ -30,6 +30,7 @@ public:
 	void setRelativeXPosition(qreal x);
 	void setRelativeYPosition(qreal y);
 	void setText(const QString &text);
+	void setDiameter(int diameter);
 
 	QIcon icon() const;
 	QString text() const;
@@ -40,9 +41,10 @@ public:
 	qreal relativeXPosition() const;
 	qreal relativeYPosition() const;
 
+	int diameter() const;
+
 protected:
 	void paintEvent(QPaintEvent *event) override;
-	int getDiameter() const;
 
 private:
 	void init();
@@ -55,6 +57,7 @@ private:
 	QString text_;
 
 	int padding_;
+	int diameter_;
 
 	qreal x_;
 	qreal y_;