pv/view/trace.hpp

   1 /*
   2  * This file is part of the PulseView project.
   3  *
   4  * Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifndef PULSEVIEW_PV_VIEWS_TRACEVIEW_TRACE_HPP
  21 #define PULSEVIEW_PV_VIEWS_TRACEVIEW_TRACE_HPP
  22
  23 #include <QColor>
  24 #include <QPainter>
  25 #include <QPen>
  26 #include <QRect>
  27 #include <QString>
  28
  29 #include <cstdint>
  30
  31 #include "tracetreeitem.hpp"
  32
  33 #include "pv/data/signalbase.hpp"
  34
  35 using std::shared_ptr;
  36
  37 class QFormLayout;
  38
  39 namespace pv {
  40
  41 namespace widgets {
  42 class Popup;
  43 }
  44
  45 namespace views {
  46 namespace TraceView {
  47
  48 class Trace : public TraceTreeItem
  49 {
  50         Q_OBJECT
  51
  52 private:
  53         static const QPen AxisPen;
  54         static const int LabelHitPadding;
  55
  56         static const QColor BrightGrayBGColour;
  57         static const QColor DarkGrayBGColour;
  58
  59 protected:
  60         Trace(shared_ptr<data::SignalBase> channel);
  61
  62 public:
  63         /**
  64          * Sets the name of the signal.
  65          */
  66         virtual void set_name(QString name);
  67
  68         /**
  69          * Set the colour of the signal.
  70          */
  71         virtual void set_colour(QColor colour);
  72
  73         /**
  74          * Paints the signal label.
  75          * @param p the QPainter to paint into.
  76          * @param rect the rectangle of the header area.
  77          * @param hover true if the label is being hovered over by the mouse.
  78          */
  79         virtual void paint_label(QPainter &p, const QRect &rect, bool hover);
  80
  81         virtual QMenu* create_context_menu(QWidget *parent);
  82
  83         pv::widgets::Popup* create_popup(QWidget *parent);
  84
  85         /**
  86          * Computes the outline rectangle of a label.
  87          * @param rect the rectangle of the header area.
  88          * @return Returns the rectangle of the signal label.
  89          */
  90         QRectF label_rect(const QRectF &rect) const;
  91
  92 protected:
  93         /**
  94          * Paints the background layer of the signal with a QPainter.
  95          * @param p The QPainter to paint into.
  96          * @param pp The painting parameters object to paint with.
  97          */
  98         virtual void paint_back(QPainter &p, ViewItemPaintParams &pp);
  99
 100         /**
 101          * Paints a zero axis across the viewport.
 102          * @param p the QPainter to paint into.
 103          * @param pp the painting parameters object to paint with.
 104          * @param y the y-offset of the axis.
 105          */
 106         void paint_axis(QPainter &p, ViewItemPaintParams &pp, int y);
 107
 108         void add_colour_option(QWidget *parent, QFormLayout *form);
 109
 110         void create_popup_form();
 111
 112         virtual void populate_popup_form(QWidget *parent, QFormLayout *form);
 113
 114 protected Q_SLOTS:
 115         virtual void on_name_changed(const QString &text);
 116
 117         virtual void on_colour_changed(const QColor &colour);
 118
 119         void on_popup_closed();
 120
 121 private Q_SLOTS:
 122         void on_nameedit_changed(const QString &name);
 123
 124         void on_colouredit_changed(const QColor &colour);
 125
 126 protected:
 127         shared_ptr<data::SignalBase> base_;
 128         bool coloured_bg_state_;
 129
 130 private:
 131         pv::widgets::Popup *popup_;
 132         QFormLayout *popup_form_;
 133 };
 134
 135 } // namespace TraceView
 136 } // namespace views
 137 } // namespace pv
 138
 139 #endif // PULSEVIEW_PV_VIEWS_TRACEVIEW_TRACE_HPP