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 <QColorDialog>
  32 #include <QInputDialog>
  33 #include <QMenu>
  34 #include <QMouseEvent>
  35 #include <QPainter>
  36 #include <QRect>
  37
  38 using namespace boost;
  39 using namespace std;
  40
  41 namespace pv {
  42 namespace view {
  43
  44 Header::Header(View &parent) :
  45         QWidget(&parent),
  46         _view(parent),
  47         _action_set_name(new QAction(tr("Set &Name..."), this)),
  48         _action_set_colour(new QAction(tr("Set &Colour..."), this))
  49 {
  50         setMouseTracking(true);
  51
  52         connect(_action_set_name, SIGNAL(triggered()),
  53                 this, SLOT(on_action_set_name_triggered()));
  54         connect(_action_set_colour, SIGNAL(triggered()),
  55                 this, SLOT(on_action_set_colour_triggered()));
  56 }
  57
  58 void Header::paintEvent(QPaintEvent *event)
  59 {
  60         const int w = width();
  61         const vector< shared_ptr<Signal> > &sigs =
  62                 _view.session().get_signals();
  63
  64         QPainter painter(this);
  65         painter.setRenderHint(QPainter::Antialiasing);
  66
  67         int offset = -_view.v_offset();
  68         BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
  69         {
  70                 assert(s);
  71
  72                 const QRect signal_heading_rect(
  73                         0, offset, w, View::SignalHeight);
  74
  75                 s->paint_label(painter, signal_heading_rect,
  76                         s->pt_in_label_rect(signal_heading_rect, _mouse_point));
  77
  78                 offset += View::SignalHeight;
  79         }
  80
  81         painter.end();
  82 }
  83
  84 void Header::mouseMoveEvent(QMouseEvent *event)
  85 {
  86         assert(event);
  87         _mouse_point = event->pos();
  88         update();
  89 }
  90
  91 void Header::leaveEvent(QEvent *event)
  92 {
  93         _mouse_point = QPoint(-1, -1);
  94         update();
  95 }
  96
  97 void Header::contextMenuEvent(QContextMenuEvent *event)
  98 {
  99         const int w = width();
 100         const vector< shared_ptr<Signal> > &sigs =
 101                 _view.session().get_signals();
 102
 103         int offset = -_view.v_offset();
 104         BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
 105         {
 106                 assert(s);
 107
 108                 const QRect signal_heading_rect(
 109                         0, offset, w, View::SignalHeight);
 110
 111                 if(s->pt_in_label_rect(signal_heading_rect, _mouse_point)) {
 112                         QMenu menu(this);
 113                         menu.addAction(_action_set_name);
 114                         menu.addAction(_action_set_colour);
 115
 116                         _context_signal = s;
 117                         menu.exec(event->globalPos());
 118                         _context_signal.reset();
 119
 120                         break;
 121                 }
 122
 123                 offset += View::SignalHeight;
 124         }
 125 }
 126
 127 void Header::on_action_set_name_triggered()
 128 {
 129         shared_ptr<view::Signal> context_signal = _context_signal;
 130         if(!context_signal)
 131                 return;
 132
 133         const QString new_label = QInputDialog::getText(this, tr("Set Name"),
 134                 tr("Name"), QLineEdit::Normal, context_signal->get_name());
 135
 136         if(!new_label.isEmpty())
 137                 context_signal->set_name(new_label);
 138 }
 139
 140 void Header::on_action_set_colour_triggered()
 141 {
 142         shared_ptr<view::Signal> context_signal = _context_signal;
 143         if(!context_signal)
 144                 return;
 145
 146         const QColor new_colour = QColorDialog::getColor(
 147                 context_signal->get_colour(), this, tr("Set Colour"));
 148
 149         if(new_colour.isValid())
 150                 context_signal->set_colour(new_colour);
 151 }
 152
 153 } // namespace view
 154 } // namespace pv