SignalDelegate.h

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// Copyright 2015 - 2026, GIBIS-UNIFESP and the wiRedPanda contributors
// SPDX-License-Identifier: GPL-3.0-or-later

 
#pragma once
 
#include <QItemDelegate>
 
class QPainter;

enum class PlotType {
    Number, 
    Line    
};

enum class WaveSegment {
    Low,      
    High,     
    Rising,   
    Falling,  
    Unknown,  
    Error     
};

class SignalDelegate : public QItemDelegate
{
    Q_OBJECT
 
public:
    explicit SignalDelegate(QObject *parent = nullptr);

    void setPlotType(PlotType plotType);

    PlotType plotType() const { return m_plotType; }

    void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override;

    static WaveSegment segmentFor(int value, bool hasPrev, int prevValue);
 
private:
    void drawWaveform(QPainter *painter, const QRectF &cell, WaveSegment seg, bool isInput) const;
 
    PlotType m_plotType = PlotType::Line; 
};