pv/view/signal.hpp

   1 /*
   2  * This file is part of the PulseView project.
   3  *
   4  * Copyright (C) 2012 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_SIGNAL_HPP
  21 #define PULSEVIEW_PV_VIEWS_TRACEVIEW_SIGNAL_HPP
  22
  23 #include <memory>
  24
  25 #include <QComboBox>
  26 #include <QWidgetAction>
  27
  28 #include <stdint.h>
  29
  30 #include "signalscalehandle.hpp"
  31 #include "trace.hpp"
  32 #include "viewitemowner.hpp"
  33
  34 namespace pv {
  35
  36 class Session;
  37
  38 namespace data {
  39 class SignalBase;
  40 class SignalData;
  41 }
  42
  43 namespace views {
  44 namespace TraceView {
  45
  46 class Signal : public Trace, public ViewItemOwner
  47 {
  48         Q_OBJECT
  49
  50 protected:
  51         Signal(pv::Session &session,
  52                 std::shared_ptr<data::SignalBase> channel);
  53
  54 public:
  55         /**
  56          * Sets the name of the signal.
  57          */
  58         virtual void set_name(QString name);
  59
  60         virtual std::shared_ptr<pv::data::SignalData> data() const = 0;
  61
  62         /**
  63          * Returns true if the trace is visible and enabled.
  64          */
  65         bool enabled() const;
  66
  67         std::shared_ptr<data::SignalBase> base() const;
  68
  69         virtual void save_settings(QSettings &settings) const;
  70
  71         virtual void restore_settings(QSettings &settings);
  72
  73         /**
  74          * Returns a list of row items owned by this object.
  75          */
  76         const item_list& child_items() const;
  77
  78         void paint_back(QPainter &p, const ViewItemPaintParams &pp);
  79
  80         virtual void populate_popup_form(QWidget *parent, QFormLayout *form);
  81
  82         QMenu* create_context_menu(QWidget *parent);
  83
  84         void delete_pressed();
  85
  86         /**
  87          * Returns the offset to show the drag handle.
  88          */
  89         virtual int scale_handle_offset() const = 0;
  90
  91         /**
  92          * Handles the scale handle being dragged to an offset.
  93          * @param offset the offset the scale handle was dragged to.
  94          */
  95         virtual void scale_handle_dragged(int offset) = 0;
  96
  97         /**
  98          * Handles the scale handle being being released.
  99          */
 100         virtual void scale_handle_released() {};
 101
 102 protected Q_SLOTS:
 103         virtual void on_name_changed(const QString &text);
 104
 105         void on_disable();
 106
 107         void on_enabled_changed(bool enabled);
 108
 109 protected:
 110         pv::Session &session_;
 111
 112         const std::shared_ptr<SignalScaleHandle> scale_handle_;
 113         const item_list items_;
 114
 115         QComboBox *name_widget_;
 116 };
 117
 118 } // namespace TraceView
 119 } // namespace views
 120 } // namespace pv
 121
 122 #endif // PULSEVIEW_PV_VIEWS_TRACEVIEW_SIGNAL_HPP