const std = @import("std");

const c = @cImport({
    @cInclude("stb_rect_pack.h");
});

const STBRectPack = @This();

ctx: c.stbrp_context,

pub fn init(self: *STBRectPack, width: u32, height: u32, nodes: []Node) void {
    c.stbrp_init_target(&self.ctx, @intCast(width), @intCast(height), nodes.ptr, @intCast(nodes.len));
}

pub fn setupAllowOutOfMem(self: *STBRectPack, enabled: bool) void {
    c.stbrp_setup_heuristic(&self.ctx, if (enabled) 1 else 0);
}

pub fn setupHeuristic(self: *STBRectPack, heuristic: Heuristic) void {
    c.stbrp_setup_heuristic(&self.ctx, heuristic);
}

pub fn packRects(self: *STBRectPack, rects: []Rect) bool {
    return c.stbrp_pack_rects(&self.ctx, rects.ptr, @intCast(rects.len)) == 1;
}

pub const Heuristic = enum(i32) {
    Skyline_BL_sortHeight = c.STBRP_HEURISTIC_Skyline_BL_sortHeight,
    Skyline_BF_sortHeight = c.STBRP_HEURISTIC_Skyline_BF_sortHeight,
    _,

    pub const default = Heuristic.Skyline_BL_sortHeight;
};

pub const Node = c.stbrp_node;
pub const Rect = c.stbrp_rect;