Luna/libui/src/Alignment.cpp

41 lines
1.1 KiB
C++

/**
* @file Alignment.cpp
* @author apio (cloudapio.eu)
* @brief UI component alignment.
*
* @copyright Copyright (c) 2023, the Luna authors.
*
*/
#include <ui/Alignment.h>
namespace ui
{
Rect align(Rect container, Rect contained, VerticalAlignment valign, HorizontalAlignment halign)
{
Rect result;
result.width = contained.width;
result.height = contained.height;
result.pos.y = container.pos.y;
result.pos.x = container.pos.x;
switch (valign)
{
case VerticalAlignment::Top: break;
case VerticalAlignment::Center: result.pos.y += (container.height - contained.height) / 2; break;
case VerticalAlignment::Bottom: result.pos.y += container.height - contained.height; break;
default: break;
}
switch (halign)
{
case HorizontalAlignment::Left: break;
case HorizontalAlignment::Center: result.pos.x += (container.width - contained.width) / 2; break;
case HorizontalAlignment::Right: result.pos.x += container.width - contained.width; break;
default: break;
}
return result;
}
}