Error messages in the case of message sending problems

core.cpp

@@ -479,7 +479,8 @@ void Core::sendMessage(int friendId, const QString& message)
     for (auto &cMsg :cMessages)
     {
         int messageId = tox_send_message(tox, friendId, cMsg.data(), cMsg.size());
-        emit messageSentResult(friendId, message, messageId);
+        if (messageId == 0)
+            emit messageSentResult(friendId, message, messageId);
     }
 }
 
@@ -503,7 +504,9 @@ void Core::sendGroupMessage(int groupId, const QString& message)
 
     for (auto &cMsg :cMessages)
     {
-        tox_group_message_send(tox, groupId, cMsg.data(), cMsg.size());
+        int ret = tox_group_message_send(tox, groupId, cMsg.data(), cMsg.size());
+        if (ret == -1)
+            emit groupSentResult(groupId, message, ret);
     }
 }
 

core.h

@@ -125,6 +125,7 @@ signals:
     void statusSet(Status status);
 
     void messageSentResult(int friendId, const QString& message, int messageId);
+    void groupSentResult(int groupId, const QString& message, int result);
     void actionSentResult(int friendId, const QString& action, int success);
 
     void failedToAddFriend(const QString& userId);

qtox.pro

@@ -107,13 +107,16 @@ HEADERS  += widget/form/addfriendform.h \
     widget/friendlistwidget.h \
     widget/genericchatroomwidget.h \
     widget/form/genericchatform.h \
-    widget/tool/chataction.h \
+    widget/tool/chatactions/chataction.h \
     widget/chatareawidget.h \
     filetransferinstance.h \
     corestructs.h \
     coredefines.h \
     coreav.h \
-    widget/settingsdialog.h
+    widget/settingsdialog.h \
+    widget/tool/chatactions/messageaction.h \
+    widget/tool/chatactions/filetransferaction.h \
+    widget/tool/chatactions/systemmessageaction.h
 
 SOURCES += \
     widget/form/addfriendform.cpp \
@@ -146,8 +149,11 @@ SOURCES += \
     coreav.cpp \
     widget/genericchatroomwidget.cpp \
     widget/form/genericchatform.cpp \
-    widget/tool/chataction.cpp \
+    widget/tool/chatactions/chataction.cpp \
     widget/chatareawidget.cpp \
     filetransferinstance.cpp \
     corestructs.cpp \
-    widget/settingsdialog.cpp
+    widget/settingsdialog.cpp \
+    widget/tool/chatactions/messageaction.cpp \
+    widget/tool/chatactions/filetransferaction.cpp \
+    widget/tool/chatactions/systemmessageaction.cpp

widget/chatareawidget.cpp

@@ -15,7 +15,7 @@
 */
 
 #include "chatareawidget.h"
-#include "widget/tool/chataction.h"
+#include "widget/tool/chatactions/chataction.h"
 #include <QScrollBar>
 #include <QDesktopServices>
 #include <QTextTable>

widget/form/chatform.cpp

@@ -23,7 +23,7 @@
 #include "friend.h"
 #include "widget/friendwidget.h"
 #include "filetransferinstance.h"
-#include "widget/tool/chataction.h"
+#include "widget/tool/chatactions/filetransferaction.h"
 #include "widget/netcamview.h"
 #include "widget/chatareawidget.h"
 #include "widget/tool/chattextedit.h"

widget/form/genericchatform.cpp

@@ -22,7 +22,8 @@
 #include "style.h"
 #include "widget/widget.h"
 #include "settings.h"
-#include "widget/tool/chataction.h"
+#include "widget/tool/chatactions/messageaction.h"
+#include "widget/tool/chatactions/systemmessageaction.h"
 #include "widget/chatareawidget.h"
 #include "widget/tool/chattextedit.h"
 
@@ -208,3 +209,11 @@ void GenericChatForm::focusInput()
 {
     msgEdit->setFocus();
 }
+
+void GenericChatForm::addSystemInfoMessage(const QString &message, const QString &type, const QDateTime &datetime)
+{
+    previousName = "";
+    QString date = datetime.toString(Settings::getInstance().getTimestampFormat());
+
+    chatWidget->insertMessage(new SystemMessageAction(message, type, date));
+}

widget/form/genericchatform.h

@@ -45,6 +45,7 @@ public:
     virtual void setName(const QString &newName);
     virtual void show(Ui::MainWindow &ui);
     void addMessage(QString author, QString message, QDateTime datetime=QDateTime::currentDateTime());
+    void addSystemInfoMessage(const QString &message, const QString &type, const QDateTime &datetime=QDateTime::currentDateTime());
 
 signals:
     void sendMessage(int, QString);

widget/tool/chataction.cpp

@@ -1,169 +0,0 @@
-/*
-    Copyright (C) 2014 by Project Tox <https://tox.im>
-
-    This file is part of qTox, a Qt-based graphical interface for Tox.
-
-    This program is libre 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 COPYING file for more details.
-*/
-
-#include "chataction.h"
-#include "smileypack.h"
-#include <QStringList>
-#include <QBuffer>
-#include "filetransferinstance.h"
-
-QString ChatAction::toHtmlChars(const QString &str)
-{
-    static QList<QPair<QString, QString>> replaceList = {{"&","&amp;"}, {">","&gt;"}, {"<","&lt;"}};
-    QString res = str;
-
-    for (auto &it : replaceList)
-        res = res.replace(it.first,it.second);
-
-    return res;
-}
-
-QString ChatAction::QImage2base64(const QImage &img)
-{
-    QByteArray ba;
-    QBuffer buffer(&ba);
-    buffer.open(QIODevice::WriteOnly);
-    img.save(&buffer, "PNG"); // writes image into ba in PNG format
-    return ba.toBase64();
-}
-
-QString ChatAction::getName()
-{
-    if (isMe)
-        return QString("<div class=name_me>" + toHtmlChars(name) + "</div>");
-    else
-        return QString("<div class=name>" + toHtmlChars(name) + "</div>");
-}
-
-QString ChatAction::getDate()
-{
-    QString res = date;
-    return res;
-}
-
-MessageAction::MessageAction(const QString &author, const QString &message, const QString &date, const bool &me) :
-    ChatAction(me, author, date),
-    message(message)
-{
-}
-
-void MessageAction::setTextCursor(QTextCursor cursor)
-{
-    // When this function is called, we're supposed to only update ourselve when needed
-    // Nobody should ask us to do anything with our content, we're on our own
-    // Except we never udpate on our own, so we can safely free our resources
-
-    (void) cursor;
-    message.clear();
-    message.squeeze();
-    name.clear();
-    name.squeeze();
-    date.clear();
-    date.squeeze();
-}
-
-QString MessageAction::getMessage()
-{
-    QString message_ = SmileyPack::getInstance().smileyfied(toHtmlChars(message));
-
-    // detect urls
-    QRegExp exp("(www\\.|http[s]?:\\/\\/|ftp:\\/\\/)\\S+");
-    int offset = 0;
-    while ((offset = exp.indexIn(message_, offset)) != -1)
-    {
-        QString url = exp.cap();
-
-        // add scheme if not specified
-        if (exp.cap(1) == "www.")
-            url.prepend("http://");
-
-        QString htmledUrl = QString("<a href=\"%1\">%1</a>").arg(url);
-        message_.replace(offset, exp.cap().length(), htmledUrl);
-
-        offset += htmledUrl.length();
-    }
-
-    // detect text quotes
-    QStringList messageLines = message_.split("\n");
-    message_ = "";
-    for (QString& s : messageLines)
-    {
-        if (QRegExp("^[ ]*&gt;.*").exactMatch(s))
-            message_ += "<span class=quote>>" + s.right(s.length()-4) + "</span><br/>";
-        else
-            message_ += s + "<br/>";
-    }
-    message_ = message_.left(message_.length()-4);
-
-    return QString("<div class=message>" + message_ + "</div>");
-}
-
-FileTransferAction::FileTransferAction(FileTransferInstance *widget, const QString &author, const QString &date, const bool &me) :
-    ChatAction(me, author, date)
-{
-    w = widget;
-
-    connect(w, &FileTransferInstance::stateUpdated, this, &FileTransferAction::updateHtml);
-}
-
-FileTransferAction::~FileTransferAction()
-{
-}
-
-QString FileTransferAction::getMessage()
-{
-    QString widgetHtml;
-    if (w != nullptr)
-        widgetHtml = w->getHtmlImage();
-    else
-        widgetHtml = "<div class=quote>EMPTY CONTENT</div>";
-    return widgetHtml;
-}
-
-void FileTransferAction::setTextCursor(QTextCursor cursor)
-{
-    cur = cursor;
-    cur.setKeepPositionOnInsert(true);
-    int end=cur.selectionEnd();
-    cur.setPosition(cur.position());
-    cur.setPosition(end, QTextCursor::KeepAnchor);
-}
-
-void FileTransferAction::updateHtml()
-{
-    if (cur.isNull())
-        return;
-
-    int pos = cur.selectionStart();
-    cur.removeSelectedText();
-    cur.setKeepPositionOnInsert(false);
-    cur.insertHtml(getMessage());
-    cur.setKeepPositionOnInsert(true);
-    int end = cur.position();
-    cur.setPosition(pos);
-    cur.setPosition(end, QTextCursor::KeepAnchor);
-
-    // Free our ressources if we'll never need to update again
-    if (w->getState() == FileTransferInstance::TransfState::tsCanceled
-            || w->getState() == FileTransferInstance::TransfState::tsFinished)
-    {
-        name.clear();
-        name.squeeze();
-        date.clear();
-        date.squeeze();
-        cur = QTextCursor();
-    }
-}

widget/tool/chatactions/chataction.cpp

@@ -0,0 +1,53 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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 COPYING file for more details.
+*/
+
+#include "chataction.h"
+#include <QStringList>
+#include <QBuffer>
+
+QString ChatAction::toHtmlChars(const QString &str)
+{
+    static QList<QPair<QString, QString>> replaceList = {{"&","&amp;"}, {">","&gt;"}, {"<","&lt;"}};
+    QString res = str;
+
+    for (auto &it : replaceList)
+        res = res.replace(it.first,it.second);
+
+    return res;
+}
+
+QString ChatAction::QImage2base64(const QImage &img)
+{
+    QByteArray ba;
+    QBuffer buffer(&ba);
+    buffer.open(QIODevice::WriteOnly);
+    img.save(&buffer, "PNG"); // writes image into ba in PNG format
+    return ba.toBase64();
+}
+
+QString ChatAction::getName()
+{
+    if (isMe)
+        return QString("<div class=name_me>" + toHtmlChars(name) + "</div>");
+    else
+        return QString("<div class=name>" + toHtmlChars(name) + "</div>");
+}
+
+QString ChatAction::getDate()
+{
+    QString res = date;
+    return res;
+}

widget/tool/chatactions/chataction.h

@@ -42,33 +42,4 @@ protected:
     QString name, date;
 };
 
-class MessageAction : public ChatAction
-{
-public:
-    MessageAction(const QString &author, const QString &message, const QString &date, const bool &me);
-    virtual ~MessageAction(){;}
-    virtual QString getMessage();
-    virtual void setTextCursor(QTextCursor cursor) final;
-
-private:
-    QString message;
-};
-
-class FileTransferAction : public ChatAction
-{
-    Q_OBJECT
-public:
-    FileTransferAction(FileTransferInstance *widget, const QString &author, const QString &date, const bool &me);
-    virtual ~FileTransferAction();
-    virtual QString getMessage();
-    virtual void setTextCursor(QTextCursor cursor) final;
-
-private slots:
-    void updateHtml();
-
-private:
-    FileTransferInstance *w;
-    QTextCursor cur;
-};
-
 #endif // CHATACTION_H

widget/tool/chatactions/filetransferaction.cpp

@@ -0,0 +1,75 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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 COPYING file for more details.
+*/
+
+#include "filetransferaction.h"
+#include "filetransferinstance.h"
+
+FileTransferAction::FileTransferAction(FileTransferInstance *widget, const QString &author, const QString &date, const bool &me) :
+    ChatAction(me, author, date)
+{
+    w = widget;
+
+    connect(w, &FileTransferInstance::stateUpdated, this, &FileTransferAction::updateHtml);
+}
+
+FileTransferAction::~FileTransferAction()
+{
+}
+
+QString FileTransferAction::getMessage()
+{
+    QString widgetHtml;
+    if (w != nullptr)
+        widgetHtml = w->getHtmlImage();
+    else
+        widgetHtml = "<div class=quote>EMPTY CONTENT</div>";
+    return widgetHtml;
+}
+
+void FileTransferAction::setTextCursor(QTextCursor cursor)
+{
+    cur = cursor;
+    cur.setKeepPositionOnInsert(true);
+    int end=cur.selectionEnd();
+    cur.setPosition(cur.position());
+    cur.setPosition(end, QTextCursor::KeepAnchor);
+}
+
+void FileTransferAction::updateHtml()
+{
+    if (cur.isNull())
+        return;
+
+    int pos = cur.selectionStart();
+    cur.removeSelectedText();
+    cur.setKeepPositionOnInsert(false);
+    cur.insertHtml(getMessage());
+    cur.setKeepPositionOnInsert(true);
+    int end = cur.position();
+    cur.setPosition(pos);
+    cur.setPosition(end, QTextCursor::KeepAnchor);
+
+    // Free our ressources if we'll never need to update again
+    if (w->getState() == FileTransferInstance::TransfState::tsCanceled
+            || w->getState() == FileTransferInstance::TransfState::tsFinished)
+    {
+        name.clear();
+        name.squeeze();
+        date.clear();
+        date.squeeze();
+        cur = QTextCursor();
+    }
+}

widget/tool/chatactions/filetransferaction.h

@@ -0,0 +1,39 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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 COPYING file for more details.
+*/
+
+#ifndef FILETRANSFERACTION_H
+#define FILETRANSFERACTION_H
+
+#include "widget/tool/chatactions/chataction.h"
+
+class FileTransferAction : public ChatAction
+{
+    Q_OBJECT
+public:
+    FileTransferAction(FileTransferInstance *widget, const QString &author, const QString &date, const bool &me);
+    virtual ~FileTransferAction();
+    virtual QString getMessage();
+    virtual void setTextCursor(QTextCursor cursor) final;
+
+private slots:
+    void updateHtml();
+
+private:
+    FileTransferInstance *w;
+    QTextCursor cur;
+};
+
+#endif // FILETRANSFERACTION_H

widget/tool/chatactions/messageaction.cpp

@@ -0,0 +1,75 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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 COPYING file for more details.
+*/
+
+#include "messageaction.h"
+#include "smileypack.h"
+
+MessageAction::MessageAction(const QString &author, const QString &message, const QString &date, const bool &me) :
+    ChatAction(me, author, date),
+    message(message)
+{
+}
+
+void MessageAction::setTextCursor(QTextCursor cursor)
+{
+    // When this function is called, we're supposed to only update ourselve when needed
+    // Nobody should ask us to do anything with our content, we're on our own
+    // Except we never udpate on our own, so we can safely free our resources
+
+    (void) cursor;
+    message.clear();
+    message.squeeze();
+    name.clear();
+    name.squeeze();
+    date.clear();
+    date.squeeze();
+}
+
+QString MessageAction::getMessage()
+{
+    QString message_ = SmileyPack::getInstance().smileyfied(toHtmlChars(message));
+
+    // detect urls
+    QRegExp exp("(www\\.|http[s]?:\\/\\/|ftp:\\/\\/)\\S+");
+    int offset = 0;
+    while ((offset = exp.indexIn(message_, offset)) != -1)
+    {
+        QString url = exp.cap();
+
+        // add scheme if not specified
+        if (exp.cap(1) == "www.")
+            url.prepend("http://");
+
+        QString htmledUrl = QString("<a href=\"%1\">%1</a>").arg(url);
+        message_.replace(offset, exp.cap().length(), htmledUrl);
+
+        offset += htmledUrl.length();
+    }
+
+    // detect text quotes
+    QStringList messageLines = message_.split("\n");
+    message_ = "";
+    for (QString& s : messageLines)
+    {
+        if (QRegExp("^[ ]*&gt;.*").exactMatch(s))
+            message_ += "<span class=quote>>" + s.right(s.length()-4) + "</span><br/>";
+        else
+            message_ += s + "<br/>";
+    }
+    message_ = message_.left(message_.length()-4);
+
+    return QString("<div class=message>" + message_ + "</div>");
+}

widget/tool/chatactions/messageaction.h

@@ -0,0 +1,34 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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 COPYING file for more details.
+*/
+
+#ifndef MESSAGEACTION_H
+#define MESSAGEACTION_H
+
+#include "widget/tool/chatactions/chataction.h"
+
+class MessageAction : public ChatAction
+{
+public:
+    MessageAction(const QString &author, const QString &message, const QString &date, const bool &me);
+    virtual ~MessageAction(){;}
+    virtual QString getMessage();
+    virtual void setTextCursor(QTextCursor cursor) final;
+
+private:
+    QString message;
+};
+
+#endif // MESSAGEACTION_H

widget/tool/chatactions/systemmessageaction.cpp

@@ -0,0 +1,46 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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 COPYING file for more details.
+*/
+
+#include "systemmessageaction.h"
+
+SystemMessageAction::SystemMessageAction(const QString &message, const QString &type, const QString &date) :
+    ChatAction(false, QString(), date),
+    message(message),
+    type(type)
+{
+}
+
+QString SystemMessageAction::getMessage()
+{
+    return QString("<table width=100%><tr><td align=center><div class=" + type + ">" + message + "</td><tr></div></table>");
+}
+
+void SystemMessageAction::setTextCursor(QTextCursor cursor)
+{
+    // When this function is called, we're supposed to only update ourselve when needed
+    // Nobody should ask us to do anything with our content, we're on our own
+    // Except we never udpate on our own, so we can safely free our resources
+
+    (void) cursor;
+    message.clear();
+    message.squeeze();
+    name.clear();
+    name.squeeze();
+    date.clear();
+    date.squeeze();
+    type.clear();
+    type.squeeze();
+}

widget/tool/chatactions/systemmessageaction.h

@@ -0,0 +1,37 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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 COPYING file for more details.
+*/
+
+#ifndef SYSTEMMESSAGEACTION_H
+#define SYSTEMMESSAGEACTION_H
+
+#include "widget/tool/chatactions/chataction.h"
+
+class SystemMessageAction : public ChatAction
+{
+public:
+    SystemMessageAction(const QString &message, const QString& type, const QString &date);
+    virtual ~SystemMessageAction(){;}
+    virtual void setTextCursor(QTextCursor cursor) final;
+
+    virtual QString getName() {return QString();}
+    virtual QString getMessage();
+
+private:
+    QString message;
+    QString type;
+};
+
+#endif // SYSTEMMESSAGEACTION_H

widget/widget.cpp

@@ -197,6 +197,9 @@ Widget::Widget(QWidget *parent)
     connect(core, &Core::groupNamelistChanged, this, &Widget::onGroupNamelistChanged);
     connect(core, &Core::emptyGroupCreated, this, &Widget::onEmptyGroupCreated);
 
+    connect(core, SIGNAL(messageSentResult(int,QString,int)), this, SLOT(onMessageSendResult(int,QString,int)));
+    connect(core, SIGNAL(groupSentResult(int,QString,int)), this, SLOT(onGroupSendResult(int,QString,int)));
+
     connect(this, &Widget::statusSet, core, &Core::setStatus);
     connect(this, &Widget::friendRequested, core, &Core::requestFriendship);
     connect(this, &Widget::friendRequestAccepted, core, &Core::acceptFriendRequest);
@@ -1060,3 +1063,25 @@ bool Widget::getIsWindowMinimized()
 {
     return static_cast<bool>(isWindowMinimized);
 }
+
+void Widget::onMessageSendResult(int friendId, const QString& message, int messageId)
+{
+    Q_UNUSED(message)
+    Friend* f = FriendList::findFriend(friendId);
+    if (!f)
+        return;
+
+    if (!messageId)
+        f->chatForm->addSystemInfoMessage("Message failed to send", "red");
+}
+
+void Widget::onGroupSendResult(int groupId, const QString& message, int result)
+{
+    Q_UNUSED(message)
+    Group* g = GroupList::findGroup(groupId);
+    if (!g)
+        return;
+
+    if (result == -1)
+        g->chatForm->addSystemInfoMessage("Message failed to send", "red");
+}

widget/widget.h

@@ -104,6 +104,8 @@ private slots:
     void setStatusOnline();
     void setStatusAway();
     void setStatusBusy();
+    void onMessageSendResult(int friendId, const QString& message, int messageId);
+    void onGroupSendResult(int groupId, const QString& message, int result);
 
 protected slots:
     void moveWindow(QMouseEvent *e);