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b912c99c JH |
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 | |
efdec55a | 17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
b912c99c JH |
18 | */ |
19 | ||
eb8269e3 | 20 | #include <cassert> |
b912c99c | 21 | |
46ebcd3f | 22 | #include <QDebug> |
b912c99c JH |
23 | #include <QDoubleSpinBox> |
24 | ||
46ebcd3f SA |
25 | #include <libsigrokcxx/libsigrokcxx.hpp> |
26 | ||
2acdb232 | 27 | #include "double.hpp" |
b912c99c | 28 | |
819f4c25 JH |
29 | using boost::optional; |
30 | using std::pair; | |
b912c99c JH |
31 | |
32 | namespace pv { | |
33 | namespace prop { | |
34 | ||
35 | Double::Double(QString name, | |
9a267f8d | 36 | QString desc, |
b912c99c JH |
37 | int decimals, |
38 | QString suffix, | |
39 | optional< pair<double, double> > range, | |
40 | optional<double> step, | |
9b258927 JH |
41 | Getter getter, |
42 | Setter setter) : | |
9a267f8d | 43 | Property(name, desc, getter, setter), |
8dbbc7f0 JH |
44 | decimals_(decimals), |
45 | suffix_(suffix), | |
46 | range_(range), | |
47 | step_(step), | |
4c60462b | 48 | spin_box_(nullptr) |
b912c99c JH |
49 | { |
50 | } | |
51 | ||
b1fe148e | 52 | QWidget* Double::get_widget(QWidget *parent, bool auto_commit) |
b912c99c | 53 | { |
8dbbc7f0 JH |
54 | if (spin_box_) |
55 | return spin_box_; | |
b912c99c | 56 | |
8dbbc7f0 | 57 | if (!getter_) |
4c60462b | 58 | return nullptr; |
f4592592 | 59 | |
46ebcd3f SA |
60 | try { |
61 | Glib::VariantBase variant = getter_(); | |
62 | if (!variant.gobj()) | |
63 | return nullptr; | |
64 | } catch (const sigrok::Error &e) { | |
65 | qWarning() << tr("Querying config key %1 resulted in %2").arg(name_, e.what()); | |
4c60462b | 66 | return nullptr; |
46ebcd3f | 67 | } |
e8d00928 | 68 | |
8dbbc7f0 JH |
69 | spin_box_ = new QDoubleSpinBox(parent); |
70 | spin_box_->setDecimals(decimals_); | |
71 | spin_box_->setSuffix(suffix_); | |
72 | if (range_) | |
73 | spin_box_->setRange(range_->first, range_->second); | |
74 | if (step_) | |
75 | spin_box_->setSingleStep(*step_); | |
b912c99c | 76 | |
dbed5609 | 77 | update_widget(); |
9f6af8bd | 78 | |
b1fe148e | 79 | if (auto_commit) |
8dbbc7f0 | 80 | connect(spin_box_, SIGNAL(valueChanged(double)), |
b1fe148e JH |
81 | this, SLOT(on_value_changed(double))); |
82 | ||
8dbbc7f0 | 83 | return spin_box_; |
b912c99c JH |
84 | } |
85 | ||
dbed5609 SA |
86 | void Double::update_widget() |
87 | { | |
88 | if (!spin_box_) | |
89 | return; | |
90 | ||
46ebcd3f SA |
91 | Glib::VariantBase variant; |
92 | ||
93 | try { | |
94 | variant = getter_(); | |
95 | } catch (const sigrok::Error &e) { | |
96 | qWarning() << tr("Querying config key %1 resulted in %2").arg(name_, e.what()); | |
97 | return; | |
98 | } | |
99 | ||
dbed5609 SA |
100 | assert(variant.gobj()); |
101 | ||
102 | double value = Glib::VariantBase::cast_dynamic<Glib::Variant<double>>( | |
103 | variant).get(); | |
104 | spin_box_->setValue(value); | |
105 | } | |
106 | ||
b912c99c JH |
107 | void Double::commit() |
108 | { | |
8dbbc7f0 | 109 | assert(setter_); |
b912c99c | 110 | |
8dbbc7f0 | 111 | if (!spin_box_) |
b912c99c JH |
112 | return; |
113 | ||
8dbbc7f0 | 114 | setter_(Glib::Variant<double>::create(spin_box_->value())); |
b912c99c JH |
115 | } |
116 | ||
b1fe148e JH |
117 | void Double::on_value_changed(double) |
118 | { | |
119 | commit(); | |
120 | } | |
121 | ||
870ea3db UH |
122 | } // namespace prop |
123 | } // namespace pv |