/*
Crafter®.Graphics
Copyright (C) 2025 Catcrafts®
Catcrafts.net

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3.0 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
*/

module Crafter.Graphics:GridElement_impl;
import :GridElement;
import :Window;
import :Types;
import std;

using namespace Crafter;

GridElement::GridElement(std::uint_fast32_t columns, std::uint_fast32_t rows, std::int_fast32_t spacingX, std::int_fast32_t spacingY, Anchor anchor) : Transform(anchor), columns(columns), rows(rows), spacingX(spacingX), spacingY(spacingY) {

}

void GridElement::UpdatePositionScaled(Window& window) {
    std::int_fast32_t cellWidth = SCALE / columns;
    std::int_fast32_t cellHeight = SCALE / rows;
    
    std::size_t childIndex = 0;
    for (std::uint_fast32_t row = 0; row < rows && childIndex < children.size(); ++row) {
        for (std::uint_fast32_t col = 0; col < columns && childIndex < children.size(); ++col) {
            Transform* child = children[childIndex];
            
            // Calculate position for this child
            std::int_fast32_t childX = (cellWidth * col) + (spacingX * col);
            std::int_fast32_t childY = (cellHeight * row) + (spacingY * row);
            
            // Apply relative positioning
            child->anchor.x = childX;
            child->anchor.y = childY;
            child->anchor.width = cellWidth;
            child->anchor.height = cellHeight;
            
            // Update child position
            child->UpdatePosition(window, *this);
            childIndex++;
        }
    }
}

void GridElement::UpdatePosition(Window& window) {
    window.ScaleElement(*this);
    UpdatePositionScaled(window);
}

void GridElement::UpdatePosition(Window& window, Transform& parent) {
    window.ScaleElement(*this, parent);
    UpdatePositionScaled(window);
}