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