31 lines
		
	
	
	
		
			748 B
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			31 lines
		
	
	
	
		
			748 B
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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| This file is part of Telegram Desktop,
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| the official desktop application for the Telegram messaging service.
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| 
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| For license and copyright information please follow this link:
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| https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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| */
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| #include "layout/layout_position.h"
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| 
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| namespace Layout {
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| namespace {
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| 
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| constexpr auto kMatrixRowShift = 40000;
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| 
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| } // namespace
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| 
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| Layout::Position IndexToPosition(int index) {
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| 	return {
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| 		(index >= 0) ? (index / kMatrixRowShift) : -1,
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| 		(index >= 0) ? (index % kMatrixRowShift) : -1 };
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| }
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| 
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| int PositionToIndex(int row, int column) {
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| 	return row * kMatrixRowShift + column;
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| }
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| 
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| int PositionToIndex(const Layout::Position &position) {
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| 	return PositionToIndex(position.row, position.column);
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| }
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| 
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| } // namespace Layout
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