/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   zoommove.c                                      |o_o || |                */
/*                                                    +:+ +:+         +:+     */
/*   By: houtworm <codam@houtworm.net>              +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/12/25 11:14:13 by houtworm          #+#    #+#             */
/*   Updated: 2023/03/09 20:30:01 by djonker      \___)=(___/                 */
/*                                                                            */
/* ************************************************************************** */

#include "../fractol.h"

void	justmove(t_varlist *vl, char dir)
{
	if (dir == 'l')
	{
		vl->xmin = vl->xmin + vl->xscale * -1 / 100;
		vl->xmax = vl->xmax + vl->xscale * -1 / 100;
	}
	if (dir == 'r')
	{
		vl->xmin = vl->xmin - vl->xscale * -1 / 100;
		vl->xmax = vl->xmax - vl->xscale * -1 / 100;
	}
	if (dir == 'u')
	{
		vl->ymin = vl->ymin + vl->yscale * -1 / 100;
		vl->ymax = vl->ymax + vl->yscale * -1 / 100;
	}
	if (dir == 'd')
	{
		vl->ymin = vl->ymin - vl->yscale * -1 / 100;
		vl->ymax = vl->ymax - vl->yscale * -1 / 100;
	}
}

void	moveout(t_varlist *vl, long double zoomx, long double zoomy)
{
	if (vl->xcur < 0)
	{
		vl->xmin = vl->xmin + zoomx * ((long double)vl->xcur * -1 / vl->w);
		vl->xmax = vl->xmax + zoomx * ((long double)vl->xcur * -1 / vl->w);
	}
	else
	{
		vl->xmin = vl->xmin - zoomx * ((long double)vl->xcur / vl->w);
		vl->xmax = vl->xmax - zoomx * ((long double)vl->xcur / vl->w);
	}
	if (vl->ycur < 0)
	{
		vl->ymin = vl->ymin + zoomy * ((long double)vl->ycur * -1 / vl->w);
		vl->ymax = vl->ymax + zoomy * ((long double)vl->ycur * -1 / vl->w);
	}
	else
	{
		vl->ymin = vl->ymin - zoomy * ((long double)vl->ycur / vl->w);
		vl->ymax = vl->ymax - zoomy * ((long double)vl->ycur / vl->w);
	}
}

void	movein(t_varlist *vl, long double zoomx, long double zoomy)
{
	if (vl->xcur < 0)
	{
		vl->xmin = vl->xmin - zoomx * ((long double)vl->xcur * -1 / vl->w);
		vl->xmax = vl->xmax - zoomx * ((long double)vl->xcur * -1 / vl->w);
	}
	else
	{
		vl->xmin = vl->xmin + zoomx * ((long double)vl->xcur / vl->w);
		vl->xmax = vl->xmax + zoomx * ((long double)vl->xcur / vl->w);
	}
	if (vl->ycur < 0)
	{
		vl->ymin = vl->ymin - zoomy * ((long double)vl->ycur * -1 / vl->w);
		vl->ymax = vl->ymax - zoomy * ((long double)vl->ycur * -1 / vl->w);
	}
	else
	{
		vl->ymin = vl->ymin + zoomy * ((long double)vl->ycur / vl->w);
		vl->ymax = vl->ymax + zoomy * ((long double)vl->ycur / vl->w);
	}
}

void	zoomtomouse(t_varlist *vl)
{
	long double		zoomx;
	long double		zoomy;

	vl->xscale = vl->xmin - vl->xmax;
	vl->yscale = vl->ymax - vl->ymin;
	zoomx = 0.9 * vl->xscale;
	zoomy = 0.9 * vl->yscale;
	vl->xmax = vl->xmax + (vl->xscale - zoomx) / 2;
	vl->xmin = vl->xmax + zoomx;
	vl->ymin = vl->ymin + (vl->yscale - zoomy) / 2;
	vl->ymax = vl->ymin + zoomy;
	mlx_get_mouse_pos(vl->mlx, &vl->xcur, &vl->ycur);
	vl->xcur = vl->xcur - (vl->w / 2);
	vl->ycur = vl->ycur - (vl->h / 2);
	vl->xscale = vl->xmax - vl->xmin;
	vl->yscale = vl->ymax - vl->ymin;
	zoomx = 0.1111111111111111111111111111111111111111 * vl->xscale;
	zoomy = 0.1111111111111111111111111111111111111111 * vl->yscale;
	movein(vl, zoomx, zoomy);
}

void	zoomfrommouse(t_varlist *vl)
{
	long double		zoomx;
	long double		zoomy;

	vl->xscale = vl->xmin - vl->xmax;
	vl->yscale = vl->ymax - vl->ymin;
	zoomx = 1.1 * vl->xscale;
	zoomy = 1.1 * vl->yscale;
	vl->xmax = vl->xmax + (vl->xscale - zoomx) / 2;
	vl->xmin = vl->xmax + zoomx;
	vl->ymin = vl->ymin + (vl->yscale - zoomy) / 2;
	vl->ymax = vl->ymin + zoomy;
	mlx_get_mouse_pos(vl->mlx, &vl->xcur, &vl->ycur);
	vl->xcur = vl->xcur - vl->w / 2;
	vl->ycur = vl->ycur - vl->h / 2;
	vl->xscale = vl->xmax - vl->xmin;
	vl->yscale = vl->ymax - vl->ymin;
	zoomx = 0.0909090909090909090909090909090909090909 * vl->xscale;
	zoomy = 0.0909090909090909090909090909090909090909 * vl->yscale;
	moveout(vl, zoomx, zoomy);
}