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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.h" | |
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<GVariant*, QString> > values, | |
35 | Getter getter, Setter setter) : | |
36 | Property(name, getter, setter), | |
37 | _values(values), | |
38 | _selector(NULL) | |
39 | { | |
40 | } | |
41 | ||
42 | Enum::~Enum() | |
43 | { | |
44 | for (unsigned int i = 0; i < _values.size(); i++) | |
45 | g_variant_unref(_values[i].first); | |
46 | } | |
47 | ||
48 | QWidget* Enum::get_widget(QWidget *parent, bool auto_commit) | |
49 | { | |
50 | if (_selector) | |
51 | return _selector; | |
52 | ||
53 | GVariant *const value = _getter ? _getter() : NULL; | |
54 | ||
55 | _selector = new QComboBox(parent); | |
56 | for (unsigned int i = 0; i < _values.size(); i++) { | |
57 | const pair<GVariant*, QString> &v = _values[i]; | |
58 | _selector->addItem(v.second, qVariantFromValue((void*)v.first)); | |
59 | if (value && g_variant_equal(v.first, value)) | |
60 | _selector->setCurrentIndex(i); | |
61 | } | |
62 | ||
63 | g_variant_unref(value); | |
64 | ||
65 | if (auto_commit) | |
66 | connect(_selector, SIGNAL(currentIndexChanged(int)), | |
67 | this, SLOT(on_current_item_changed(int))); | |
68 | ||
69 | return _selector; | |
70 | } | |
71 | ||
72 | void Enum::commit() | |
73 | { | |
74 | assert(_setter); | |
75 | ||
76 | if (!_selector) | |
77 | return; | |
78 | ||
79 | const int index = _selector->currentIndex(); | |
80 | if (index < 0) | |
81 | return; | |
82 | ||
83 | _setter((GVariant*)_selector->itemData(index).value<void*>()); | |
84 | } | |
85 | ||
86 | void Enum::on_current_item_changed(int) | |
87 | { | |
88 | commit(); | |
89 | } | |
90 | ||
91 | } // prop | |
92 | } // pv |