pv/view/triggermarker.cpp

   1 /*
   2  * This file is part of the PulseView project.
   3  *
   4  * Copyright (C) 2014 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 #include "triggermarker.hpp"
  21 #include "view.hpp"
  22
  23 namespace pv {
  24 namespace views {
  25 namespace TraceView {
  26
  27 const QColor TriggerMarker::Colour(0x00, 0x00, 0xB0);
  28
  29 TriggerMarker::TriggerMarker(View &view, const pv::util::Timestamp& time) :
  30         TimeItem(view),
  31         time_(time)
  32 {
  33 }
  34
  35 TriggerMarker::TriggerMarker(const TriggerMarker &marker) :
  36         TimeItem(marker.view_),
  37         time_(marker.time_)
  38 {
  39 }
  40
  41 bool TriggerMarker::enabled() const
  42 {
  43         return true;
  44 }
  45
  46 bool TriggerMarker::is_draggable() const
  47 {
  48         return false;
  49 }
  50
  51 void TriggerMarker::set_time(const pv::util::Timestamp& time)
  52 {
  53         time_ = time;
  54
  55         view_.time_item_appearance_changed(true, true);
  56 }
  57
  58 float TriggerMarker::get_x() const
  59 {
  60         return ((time_ - view_.offset()) / view_.scale()).convert_to<float>();
  61 }
  62
  63 QPoint TriggerMarker::point(const QRect &rect) const
  64 {
  65         return QPoint(get_x(), rect.bottom());
  66 }
  67
  68 void TriggerMarker::paint_fore(QPainter &p, const ViewItemPaintParams &pp)
  69 {
  70         if (!enabled())
  71                 return;
  72
  73         QPen pen(Colour);
  74         pen.setStyle(Qt::DashLine);
  75
  76         const float x = get_x();
  77         p.setPen(pen);
  78         p.drawLine(QPointF(x, pp.top()), QPointF(x, pp.bottom()));
  79 }
  80
  81 } // namespace TraceView
  82 } // namespace views
  83 } // namespace pv