importtextview.h

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//  ************************************************************************************************
//
//  BornAgain: simulate and fit reflection and scattering
//
//! @file      gui2/dataloader/importtextview.h
//! @brief     Defines class CLASS?
//!
//! @homepage  http://www.bornagainproject.org
//! @license   GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2020
//! @authors   Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
//  ************************************************************************************************
 
#ifndef BORNAGAIN_GUI2_DATALOADER_IMPORTTEXTVIEW_H
#define BORNAGAIN_GUI2_DATALOADER_IMPORTTEXTVIEW_H
 
#include "darefl_export.h"
 
//! Based on Qt example "codeeditor"
//! Copyright (C) 2016 The Qt Company Ltd.
 
#include <QPlainTextEdit>
 
class QPaintEvent;
class QResizeEvent;
class QSize;
class QWidget;
 
namespace gui2 {
 
class LineNumberArea;
 
//! Text view to show imported data.
 
class DAREFLCORE_EXPORT ImportTextView : public QPlainTextEdit {
    Q_OBJECT
 
public:
    ImportTextView(QWidget* parent = nullptr);
 
    void lineNumberAreaPaintEvent(QPaintEvent* event);
    int lineNumberAreaWidth();
 
protected:
    void resizeEvent(QResizeEvent* event) override;
 
private slots:
    void updateLineNumberAreaWidth(int newBlockCount);
    void highlightCurrentLine();
    void updateLineNumberArea(const QRect& rect, int dy);
 
private:
    QWidget* lineNumberArea;
};
 
//! Area with line numbers.
 
class DAREFLCORE_EXPORT LineNumberArea : public QWidget {
public:
    LineNumberArea(ImportTextView* editor) : QWidget(editor), codeEditor(editor) {}
 
    QSize sizeHint() const override { return QSize(codeEditor->lineNumberAreaWidth(), 0); }
 
protected:
    void paintEvent(QPaintEvent* event) override { codeEditor->lineNumberAreaPaintEvent(event); }
 
private:
    ImportTextView* codeEditor;
};
 
} // namespace gui2
 
#endif // BORNAGAIN_GUI2_DATALOADER_IMPORTTEXTVIEW_H