/*
 * Copyright 2011 Sven Weidauer <sven.weidauer@gmail.com>
 *
 * This file is part of NetSurf, http://www.netsurf-browser.org/
 *
 * NetSurf is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * NetSurf 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef COCOA_COORDINATES_H
#define COCOA_COORDINATES_H

extern CGFloat cocoa_scale_factor;

static inline CGFloat cocoa_px_to_pt(int location) __attribute__((always_inline, pure));
static inline CGFloat cocoa_px_to_pt_f(CGFloat location) __attribute__((always_inline, pure));

static inline int cocoa_pt_to_px(CGFloat location) __attribute__((always_inline, pure));

static inline NSPoint cocoa_point(int x, int y) __attribute__((always_inline, pure));
static inline NSPoint cocoa_scaled_point(CGFloat scale, int x, int y) __attribute__((always_inline, pure));

static inline NSSize cocoa_size(int w, int h) __attribute__((always_inline, pure));
static inline NSSize cocoa_scaled_size(CGFloat scale, int w, int h) __attribute__((always_inline, pure));

static inline NSRect cocoa_rect(int x0, int y0, int x1, int y1) __attribute__((always_inline, pure));
static inline NSRect cocoa_rect_wh(int x, int y, int w, int h) __attribute__((always_inline, pure));

static inline NSRect cocoa_scaled_rect(CGFloat scale, int x0, int y0, int x1, int y1) __attribute__((always_inline, pure));
static inline NSRect cocoa_scaled_rect_wh(CGFloat scale, int x, int y, int w, int h) __attribute__((always_inline, pure));

static inline CGFloat cocoa_px_to_pt(int location)
{
    return (CGFloat)location * cocoa_scale_factor;
}

static inline CGFloat cocoa_px_to_pt_f(CGFloat location)
{
    return floor(location) * cocoa_scale_factor;
}

static inline int cocoa_pt_to_px(CGFloat location)
{
    return location / cocoa_scale_factor;
}

static inline NSPoint cocoa_point(int x, int y)
{
    return NSMakePoint(cocoa_px_to_pt(x), cocoa_px_to_pt(y));
}

static inline NSPoint cocoa_scaled_point(CGFloat scale, int x, int y)
{
    return NSMakePoint(cocoa_px_to_pt_f(scale * x), cocoa_px_to_pt_f(scale * y));
}

static inline NSSize cocoa_size(int w, int h)
{
    return NSMakeSize(cocoa_px_to_pt(w), cocoa_px_to_pt(h));
}

static inline NSSize cocoa_scaled_size(CGFloat scale, int w, int h)
{
    return NSMakeSize(cocoa_px_to_pt_f(scale * w), cocoa_px_to_pt_f(scale * h));
}

static inline NSRect cocoa_rect(int x0, int y0, int x1, int y1)
{
    return cocoa_rect_wh(x0, y0, x1 - x0, y1 - y0);
}

static inline NSRect cocoa_rect_wh(int x, int y, int w, int h)
{
    const NSRect result = {
        .origin = cocoa_point(x, y),
        .size = cocoa_size(w, h)
    };
    return result;
}

static inline NSRect cocoa_scaled_rect_wh(CGFloat scale, int x, int y, int w, int h)
{
    const NSRect result = {
        .origin = cocoa_scaled_point(scale, x, y),
        .size = cocoa_scaled_size(scale, w, h)
    };
    return result;
}

static inline NSRect cocoa_scaled_rect(CGFloat scale, int x0, int y0, int x1, int y1)
{
    return cocoa_scaled_rect_wh(scale, x0, y0, x1 - x0, y1 - y0);
}

#endif