Differential D5931 Diff 20970 libcolorcorrect/geolocator.cpp

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libcolorcorrect/geolocator.cpp

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1		/********************************************************************
2		Copyright 2017 Roman Gilg <subdiff@gmail.com>
3
4		This program is free software; you can redistribute it and/or modify
5		it under the terms of the GNU General Public License as published by
6		the Free Software Foundation; either version 2 of the License, or
7		(at your option) any later version.
8
9		This program is distributed in the hope that it will be useful,
10		but WITHOUT ANY WARRANTY; without even the implied warranty of
11		MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12		GNU General Public License for more details.
13
14		You should have received a copy of the GNU General Public License
15		along with this program. If not, see <http://www.gnu.org/licenses/>.
16		*********************************************************************/
17		#include "geolocator.h"
18
19		namespace ColorCorrect
20		{
21
22		Geolocator::Geolocator(QObject *parent)
23		: QObject(parent)
24		{
25		m_engine = dataEngine("geolocation");
	davidedmundsonUnsubmitted Not Done meh, I'd rather we didn't have to link the rather heavy Plasma from KDED. I'm not going to make you change it, but in future hopefully we can just use the geo code directly. davidedmundson: meh, I'd rather we didn't have to link the rather heavy Plasma from KDED. I'm not going to…
26
27		if (m_engine && m_engine->isValid()) {
28		m_engine->connectSource("location", this);
29		}
30		}
31
32		void Geolocator::dataUpdated(const QString &source, const Plasma::DataEngine::Data &data)
33		{
34		Q_UNUSED(source);
35
36		if (!m_engine) {
37		return;
38		}
39
40		if (data.isEmpty()) {
41		return;
42		}
43
44		auto readGeoDouble = [](const Plasma::DataEngine::Data &data, const QString &key) -> double {
45		const Plasma::DataEngine::Data::ConstIterator it = data.find(key);
46
47		if (it == data.end()) {
48		return qQNaN();
49		}
50
51		bool ok = false;
52		double result = it.value().toDouble(&ok);
53		if (!ok) {
54		result = qQNaN();
55		}
56		return result;
57		};
58
59		double lat = readGeoDouble(data, QStringLiteral("latitude"));
60		double lng = readGeoDouble(data, QStringLiteral("longitude"));
61		if (std::isnan(lat) \|\| std::isnan(lng)) {
62		return;
63		}
64
65		bool isChanged = false;
66		if (m_latitude != lat) {
67		m_latitude = lat;
68		isChanged = true;
69		emit latitudeChanged();
70		}
71		if (m_longitude != lng) {
72		m_longitude = lng;
73		isChanged = true;
74		emit longitudeChanged();
75		}
76		if (isChanged) {
77		emit locationChanged(m_latitude, m_longitude);
78		}
79		}
80
81		}