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