lineNumber.h

/* ********************************************************************
    itom software
    URL: http://www.uni-stuttgart.de/ito
    Copyright (C) 2020, Institut für Technische Optik (ITO),
    Universität Stuttgart, Germany
 
    This file is part of itom.
 
    itom is free software; you can redistribute it and/or modify it
    under the terms of the GNU Library General Public Licence as published by
    the Free Software Foundation; either version 2 of the Licence, or (at
    your option) any later version.
 
    itom 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 GNU Library
    General Public Licence for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with itom. If not, see <http://www.gnu.org/licenses/>.
 
    Further hints:
    ------------------------
 
    This file belongs to the code editor of itom. The code editor is
    in major parts a fork / rewritten version of the python-based source
    code editor PyQode from Colin Duquesnoy and others
    (see https://github.com/pyQode). PyQode itself is licensed under
    the MIT License (MIT).
 
    Some parts of the code editor of itom are also inspired by the
    source code editor of the Spyder IDE (https://github.com/spyder-ide),
    also licensed under the MIT License and developed by the Spyder Project
    Contributors.
 
*********************************************************************** */
 
#ifndef LINENUMBER_H
#define LINENUMBER_H
 
/*
This module contains the line number panel
*/
 
#include "../panel.h"
#include "../utils/utils.h"
 
#include <qevent.h>
#include <qsize.h>
#include <qcolor.h>
 
namespace ito {
 
/*
Displays the document line numbers.
*/
class LineNumberPanel : public Panel
{
    Q_OBJECT
public:
    LineNumberPanel(const QString &description = "", QWidget *parent = NULL);
    virtual ~LineNumberPanel();
 
    virtual QSize sizeHint() const;
    int lineNumberAreaWidth() const;
    void cancelSelection();
 
protected:
    virtual void paintEvent(QPaintEvent *e);
    virtual void mousePressEvent(QMouseEvent *e);
    virtual void mouseMoveEvent(QMouseEvent *e);
    virtual void mouseReleaseEvent(QMouseEvent *e);
    virtual void wheelEvent(QWheelEvent *e);
 
private:
    bool m_selecting;
    int m_startLine;
    int m_selStart;
    QColor m_lineColorU;
    QColor m_lineColorS;
};
 
} //end namespace ito
 
#endif