LogicSignal: Only draw the trigger marker for enabled channels.
[pulseview.git] / pv / prop / double.cpp
1 /*
2  * This file is part of the PulseView project.
3  *
4  * Copyright (C) 2013 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 <assert.h>
22
23 #include <QDoubleSpinBox>
24
25 #include "double.hpp"
26
27 using boost::optional;
28 using std::pair;
29
30 namespace pv {
31 namespace prop {
32
33 Double::Double(QString name,
34         int decimals,
35         QString suffix,
36         optional< pair<double, double> > range,
37         optional<double> step,
38         Getter getter,
39         Setter setter) :
40         Property(name, getter, setter),
41         decimals_(decimals),
42         suffix_(suffix),
43         range_(range),
44         step_(step),
45         spin_box_(nullptr)
46 {
47 }
48
49 Double::~Double()
50 {
51 }
52
53 QWidget* Double::get_widget(QWidget *parent, bool auto_commit)
54 {
55         if (spin_box_)
56                 return spin_box_;
57
58         if (!getter_)
59                 return nullptr;
60
61         Glib::VariantBase variant = getter_();
62         if (!variant.gobj())
63                 return nullptr;
64
65         double value = Glib::VariantBase::cast_dynamic<Glib::Variant<double>>(
66                 variant).get();
67
68         spin_box_ = new QDoubleSpinBox(parent);
69         spin_box_->setDecimals(decimals_);
70         spin_box_->setSuffix(suffix_);
71         if (range_)
72                 spin_box_->setRange(range_->first, range_->second);
73         if (step_)
74                 spin_box_->setSingleStep(*step_);
75
76         spin_box_->setValue(value);
77
78         if (auto_commit)
79                 connect(spin_box_, SIGNAL(valueChanged(double)),
80                         this, SLOT(on_value_changed(double)));
81
82         return spin_box_;
83 }
84
85 void Double::commit()
86 {
87         assert(setter_);
88
89         if (!spin_box_)
90                 return;
91
92         setter_(Glib::Variant<double>::create(spin_box_->value()));
93 }
94
95 void Double::on_value_changed(double)
96 {
97         commit();
98 }
99
100 } // prop
101 } // pv