31 lines
		
	
	
	
		
			748 B
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			31 lines
		
	
	
	
		
			748 B
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
 | 
						|
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
 |