1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
/*
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 "layout/layout_position.h"
namespace Layout {
namespace {
constexpr auto kMatrixRowShift = 40000;
} // namespace
Layout::Position IndexToPosition(int index) {
return {
(index >= 0) ? (index / kMatrixRowShift) : -1,
(index >= 0) ? (index % kMatrixRowShift) : -1 };
}
int PositionToIndex(int row, int column) {
return row * kMatrixRowShift + column;
}
int PositionToIndex(const Layout::Position &position) {
return PositionToIndex(position.row, position.column);
}
} // namespace Layout
|
