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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, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <assert.h> | |
21 | ||
22 | #include <QComboBox> | |
23 | ||
24 | #include "enum.hpp" | |
25 | ||
26 | using std::pair; | |
27 | using std::vector; | |
28 | ||
29 | namespace pv { | |
30 | namespace prop { | |
31 | ||
32 | Enum::Enum(QString name, | |
33 | vector<pair<Glib::VariantBase, QString> > values, | |
34 | Getter getter, Setter setter) : | |
35 | Property(name, getter, setter), | |
36 | values_(values), | |
37 | selector_(nullptr) | |
38 | { | |
39 | } | |
40 | ||
41 | QWidget* Enum::get_widget(QWidget *parent, bool auto_commit) | |
42 | { | |
43 | if (selector_) | |
44 | return selector_; | |
45 | ||
46 | if (!getter_) | |
47 | return nullptr; | |
48 | ||
49 | Glib::VariantBase variant = getter_(); | |
50 | if (!variant.gobj()) | |
51 | return nullptr; | |
52 | ||
53 | selector_ = new QComboBox(parent); | |
54 | for (unsigned int i = 0; i < values_.size(); i++) { | |
55 | const pair<Glib::VariantBase, QString> &v = values_[i]; | |
56 | selector_->addItem(v.second, qVariantFromValue(v.first)); | |
57 | if (v.first.equal(variant)) | |
58 | selector_->setCurrentIndex(i); | |
59 | } | |
60 | ||
61 | if (auto_commit) | |
62 | connect(selector_, SIGNAL(currentIndexChanged(int)), | |
63 | this, SLOT(on_current_item_changed(int))); | |
64 | ||
65 | return selector_; | |
66 | } | |
67 | ||
68 | void Enum::commit() | |
69 | { | |
70 | assert(setter_); | |
71 | ||
72 | if (!selector_) | |
73 | return; | |
74 | ||
75 | const int index = selector_->currentIndex(); | |
76 | if (index < 0) | |
77 | return; | |
78 | ||
79 | setter_(selector_->itemData(index).value<Glib::VariantBase>()); | |
80 | } | |
81 | ||
82 | void Enum::on_current_item_changed(int) | |
83 | { | |
84 | commit(); | |
85 | } | |
86 | ||
87 | } // prop | |
88 | } // pv |