/*
** Copyright (C) 2013 Jiří Procházka (Hobrasoft)
** Contact: http://www.hobrasoft.cz/
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file is under the terms of the GNU Lesser General Public License
** version 2.1 as published by the Free Software Foundation and appearing
** in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the
** GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
*/
/********************************
 * includes changes by wandererfan@gmail.com
 * for FreeCAD project https://www.freecadweb.org/
 ********************************/


#ifndef _MRICHTEXTEDIT_H_
#define _MRICHTEXTEDIT_H_

#include <QPointer>
#include "ui_mrichtextedit.h"

/**
 * @brief A simple rich-text editor
 */
class MRichTextEdit : public QWidget, protected Ui::MRichTextEdit {
    Q_OBJECT
  public:
    MRichTextEdit(QWidget *parent = nullptr, QString textIn = QString() );

    QString toPlainText() const { return f_textedit->toPlainText(); }
    QString toHtml() const;
    QTextDocument *document() { return f_textedit->document(); }
    QTextCursor    textCursor() const { return f_textedit->textCursor(); }
    void           setTextCursor(const QTextCursor& cursor) { f_textedit->setTextCursor(cursor); }
    void setMaxWidth(double w);
    void setDefFontSize(int fs);
    void setDefFont(QString f);
    QString getDefFontSize(void);
    int getDefFontSizeNum(void);
    QFont getDefFont(void);
   
  public Q_SLOTS:
    void setText(const QString &text);

Q_SIGNALS:
    void saveText(QString revText);
    void editorFinished();

  protected Q_SLOTS:
    void onSave(void);
    void onExit(void);
    void setPlainText(const QString &text) { f_textedit->setPlainText(text); }
    void setHtml(const QString &text)      { f_textedit->setHtml(text); }
    void textRemoveFormat();
    void textRemoveAllFormat();
    void textBold();
    void textUnderline();
    void textStrikeout();
    void textItalic();
    void textSize(const QString &p);
    void textLink(bool checked);
    void textStyle(int index);
    void textFgColor();
    void textBgColor();
    void listBullet(bool checked);
    void listOrdered(bool checked);
    void slotCurrentCharFormatChanged(const QTextCharFormat &format);
    void slotCursorPositionChanged();
    void slotClipboardDataChanged();
    void increaseIndentation();
    void decreaseIndentation();
    void insertImage();
    void textSource();
    void onSelectionChanged();

  protected:
    void mergeFormatOnWordOrSelection(const QTextCharFormat &format);
    void fontChanged(const QFont &f);
    void fgColorChanged(const QColor &c);
    void bgColorChanged(const QColor &c);
    void list(bool checked, QTextListFormat::Style style);
    void indent(int delta);
    void focusInEvent(QFocusEvent *event);
    void keyPressEvent(QKeyEvent *event);
    bool hasMultipleSizes(void);

    void addFontSize(QString fs);

    QStringList m_paragraphItems;
    int m_fontsize_h1;
    int m_fontsize_h2;
    int m_fontsize_h3;
    int m_fontsize_h4;

    enum ParagraphItems { ParagraphStandard = 0,
                          ParagraphHeading1,
                          ParagraphHeading2,
                          ParagraphHeading3,
                          ParagraphHeading4,
                          ParagraphMonospace };

    QPointer<QTextList> m_lastBlockList;
    int m_defFontSize;
    QString m_defFont;
};

#endif