pv/view/header.cpp

   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, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 #include "header.h"
  22 #include "view.h"
  23
  24 #include "../signal.h"
  25 #include "../sigsession.h"
  26
  27 #include <assert.h>
  28
  29 #include <boost/foreach.hpp>
  30
  31 #include <QInputDialog>
  32 #include <QMenu>
  33 #include <QMouseEvent>
  34 #include <QPainter>
  35 #include <QRect>
  36
  37 using namespace boost;
  38 using namespace std;
  39
  40 namespace pv {
  41 namespace view {
  42
  43 Header::Header(View &parent) :
  44         QWidget(&parent),
  45         _view(parent),
  46         _action_set_name(new QAction(tr("Set &Name..."), this))
  47 {
  48         setMouseTracking(true);
  49
  50         connect(_action_set_name, SIGNAL(triggered()),
  51                 this, SLOT(on_action_set_name_triggered()));
  52 }
  53
  54 void Header::paintEvent(QPaintEvent *event)
  55 {
  56         const int w = width();
  57         const vector< shared_ptr<Signal> > &sigs =
  58                 _view.session().get_signals();
  59
  60         QPainter painter(this);
  61         painter.setRenderHint(QPainter::Antialiasing);
  62
  63         int offset = -_view.v_offset();
  64         BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
  65         {
  66                 assert(s);
  67
  68                 const QRect signal_heading_rect(
  69                         0, offset, w, View::SignalHeight);
  70
  71                 s->paint_label(painter, signal_heading_rect,
  72                         s->pt_in_label_rect(signal_heading_rect, _mouse_point));
  73
  74                 offset += View::SignalHeight;
  75         }
  76
  77         painter.end();
  78 }
  79
  80 void Header::mouseMoveEvent(QMouseEvent *event)
  81 {
  82         assert(event);
  83         _mouse_point = event->pos();
  84         update();
  85 }
  86
  87 void Header::leaveEvent(QEvent *event)
  88 {
  89         _mouse_point = QPoint(-1, -1);
  90         update();
  91 }
  92
  93 void Header::contextMenuEvent(QContextMenuEvent *event)
  94 {
  95         const int w = width();
  96         const vector< shared_ptr<Signal> > &sigs =
  97                 _view.session().get_signals();
  98
  99         int offset = -_view.v_offset();
 100         BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
 101         {
 102                 assert(s);
 103
 104                 const QRect signal_heading_rect(
 105                         0, offset, w, View::SignalHeight);
 106
 107                 if(s->pt_in_label_rect(signal_heading_rect, _mouse_point)) {
 108                         QMenu menu(this);
 109                         menu.addAction(_action_set_name);
 110
 111                         _context_signal = s;
 112                         menu.exec(event->globalPos());
 113                         _context_signal.reset();
 114
 115                         break;
 116                 }
 117
 118                 offset += View::SignalHeight;
 119         }
 120 }
 121
 122 void Header::on_action_set_name_triggered()
 123 {
 124         boost::shared_ptr<Signal> context_signal = _context_signal;
 125         if(!context_signal)
 126                 return;
 127
 128         const QString new_label = QInputDialog::getText(this, tr("Set Name"),
 129                 tr("Name"), QLineEdit::Normal, context_signal->get_name());
 130
 131         if(!new_label.isEmpty())
 132                 context_signal->set_name(new_label);
 133 }
 134
 135 } // namespace view
 136 } // namespace pv