trace.hpp

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/*
 * This file is part of the PulseView project.
 *
 * Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 */

#ifndef PULSEVIEW_PV_VIEWS_TRACE_TRACE_HPP
#define PULSEVIEW_PV_VIEWS_TRACE_TRACE_HPP

#include <QColor>
#include <QPainter>
#include <QPen>
#include <QRect>
#include <QString>

#include <cstdint>

#include "tracetreeitem.hpp"

#include <pv/globalsettings.hpp>
#include "pv/data/signalbase.hpp"

using std::shared_ptr;

class QFormLayout;

namespace pv {

namespace data {
class SignalBase;
}

namespace widgets {
class Popup;
}

namespace views {
namespace trace {

class Trace : public TraceTreeItem, public GlobalSettingsInterface
{
    Q_OBJECT

public:
    enum SegmentDisplayMode {
        ShowLastSegmentOnly = 1,
        ShowLastCompleteSegmentOnly,
        ShowSingleSegmentOnly,
        ShowAllSegments,
        ShowAccumulatedIntensity
    };

private:
    static const QPen AxisPen;
    static const int LabelHitPadding;

    static const QColor BrightGrayBGColor;
    static const QColor DarkGrayBGColor;
    static const QColor ErrorBgColor;

protected:
    Trace(shared_ptr<data::SignalBase> signal);
    ~Trace();

public:
    shared_ptr<data::SignalBase> base() const;

    virtual bool is_selectable(QPoint pos) const;

    virtual bool is_draggable(QPoint pos) const;

    virtual void set_segment_display_mode(SegmentDisplayMode mode);

    virtual void on_setting_changed(const QString &key, const QVariant &value);

    virtual void paint_label(QPainter &p, const QRect &rect, bool hover);

    virtual void paint_error(QPainter &p, const ViewItemPaintParams &pp);

    virtual QMenu* create_header_context_menu(QWidget *parent);

    virtual QMenu* create_view_context_menu(QWidget *parent, QPoint &click_pos);

    pv::widgets::Popup* create_popup(QWidget *parent);

    QRectF label_rect(const QRectF &rect) const;

    virtual QRectF hit_box_rect(const ViewItemPaintParams &pp) const;

    void set_current_segment(const int segment);

    int get_current_segment() const;

    virtual void hover_point_changed(const QPoint &hp);

protected:
    virtual void paint_back(QPainter &p, ViewItemPaintParams &pp);

    void paint_axis(QPainter &p, ViewItemPaintParams &pp, int y);

    void paint_hover_marker(QPainter &p);

    void add_color_option(QWidget *parent, QFormLayout *form);

    void create_popup_form();

    virtual void populate_popup_form(QWidget *parent, QFormLayout *form);

protected Q_SLOTS:
    virtual void on_name_changed(const QString &text);
    virtual void on_color_changed(const QColor &color);
    virtual void on_error_message_changed(const QString &msg);

    void on_popup_closed();

private Q_SLOTS:
    void on_nameedit_changed(const QString &name);

    void on_coloredit_changed(const QColor &color);

    void on_create_marker_here() const;

protected:
    shared_ptr<data::SignalBase> base_;
    QPen axis_pen_;

    SegmentDisplayMode segment_display_mode_;
    bool show_hover_marker_;

    uint32_t context_menu_x_pos_;

    int current_segment_;

private:
    pv::widgets::Popup *popup_;
    QFormLayout *popup_form_;
};

} // namespace trace
} // namespace views
} // namespace pv

#endif // PULSEVIEW_PV_VIEWS_TRACE_TRACE_HPP