init

Telegram/SourceFiles/data/data_location.cpp

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+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#include "data/data_location.h"
+
+#include "ui/image/image.h"
+#include "data/data_file_origin.h"
+
+namespace Data {
+namespace {
+
+[[nodiscard]] QString AsString(float64 value) {
+	constexpr auto kPrecision = 6;
+	return QString::number(value, 'f', kPrecision);
+}
+
+} // namespace
+
+LocationPoint::LocationPoint(const MTPDgeoPoint &point)
+: _lat(point.vlat().v)
+, _lon(point.vlong().v)
+, _access(point.vaccess_hash().v) {
+}
+
+LocationPoint::LocationPoint(float64 lat, float64 lon, IgnoreAccessHash)
+: _lat(lat)
+, _lon(lon) {
+}
+
+QString LocationPoint::latAsString() const {
+	return AsString(_lat);
+}
+
+QString LocationPoint::lonAsString() const {
+	return AsString(_lon);
+}
+
+MTPGeoPoint LocationPoint::toMTP() const {
+	return MTP_geoPoint(
+		MTP_flags(0),
+		MTP_double(_lon),
+		MTP_double(_lat),
+		MTP_long(_access),
+		MTP_int(0)); // accuracy_radius
+}
+
+float64 LocationPoint::lat() const {
+	return _lat;
+}
+
+float64 LocationPoint::lon() const {
+	return _lon;
+}
+
+uint64 LocationPoint::accessHash() const {
+	return _access;
+}
+
+size_t LocationPoint::hash() const {
+	return QtPrivate::QHashCombine().operator()(
+		std::hash<float64>()(_lat),
+		_lon);
+}
+
+GeoPointLocation ComputeLocation(const LocationPoint &point) {
+	const auto scale = 1 + (cScale() * style::DevicePixelRatio()) / 200;
+	const auto zoom = 13 + (scale - 1);
+	const auto w = st::locationSize.width() / scale;
+	const auto h = st::locationSize.height() / scale;
+
+	auto result = GeoPointLocation();
+	result.lat = point.lat();
+	result.lon = point.lon();
+	result.access = point.accessHash();
+	result.width = w;
+	result.height = h;
+	result.zoom = zoom;
+	result.scale = scale;
+	return result;
+}
+
+} // namespace Data