As of workshop RW/KB, improved / fixed text messages

Also refs #351
* messages can be formatted with style sheet
* fixed: removed command from message
* added originator to command line
* msg parsing now in core
* using ITimestampBased for text messages and status messages
* allow to resize rows to content (view base)
* model / views for text messages
* removed old qt stylesheets

src/blackgui/textmessagetextedit.h

@@ -0,0 +1,83 @@
+/* Copyright (C) 2015
+ * swift project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+//! \file
+
+#ifndef BLACKGUI_TEXTMESSAGETEXTEDIT_H
+#define BLACKGUI_TEXTMESSAGETEXTEDIT_H
+
+#include "blackmisc/nwtextmessagelist.h"
+#include <QTextEdit>
+#include <QAction>
+
+namespace BlackGui
+{
+    //! Specialized text edit for displaying text messages
+    class CTextMessageTextEdit : public QTextEdit
+    {
+    public:
+        //! Constructor
+        CTextMessageTextEdit(QWidget *parent = nullptr);
+
+        //! Destructor
+        ~CTextMessageTextEdit();
+
+        //! Insert a message
+        void insertTextMessage(const BlackMisc::Network::CTextMessage &textMessage, int maxMessages = -1);
+
+        //! The displayed text messaged
+        const BlackMisc::Network::CTextMessageList &getDisplayedTextMessages() const;
+
+        //! Number of displayed messages
+        int count() const;
+
+    public slots:
+        //! Clear
+        void clear();
+
+    private slots:
+        //! Context menu
+        void ps_showContextMenuForTextEdit(const QPoint &pt);
+
+        //! Stylesheet has been changed
+        void ps_onStyleSheetChanged();
+
+        //! Keep last n messages
+        void ps_keepLastNMessages();
+
+        //! Visible fields
+        void ps_setVisibleFields();
+
+    private:
+        //! Convert to HTML
+        static QString toHtml(const BlackMisc::Network::CTextMessageList &messages, bool withFrom, bool withTo);
+
+        //! Convert to HTML
+        static QString toHtml(const BlackMisc::Network::CTextMessage &message, bool withFrom, bool withTo);
+
+        //! Stylesheet for content
+        void setStyleSheetForContent(const QString &styleSheet);
+
+        BlackMisc::Network::CTextMessageList m_messages;
+        QTextDocument *m_textDocument = nullptr;
+        int m_keepMaxMessages = 10;
+        bool m_withSender = true;
+        bool m_withRecipient = false;
+
+        QAction *m_actionClearTextEdit = nullptr;
+        QAction *m_actionLast10 = nullptr;
+        QAction *m_actionLast25 = nullptr;
+        QAction *m_actionAll = nullptr;
+        QAction *m_actionWithSender = nullptr;
+        QAction *m_actionWithRecipient = nullptr;
+    };
+
+} // namespace
+
+#endif // guard