rect.h

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/*
    MIT License

    Copyright (c) 2018, Alexey Dynda

    Permission is hereby granted, free of charge, to any person obtaining a copy
    of this software and associated documentation files (the "Software"), to deal
    in the Software without restriction, including without limitation the rights
    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    copies of the Software, and to permit persons to whom the Software is
    furnished to do so, subject to the following conditions:

    The above copyright notice and this permission notice shall be included in all
    copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
    SOFTWARE.
*/
#ifndef _NANO_RECT_H_
#define _NANO_RECT_H_

#include "point.h"
#include "ssd1306_hal/io.h"

typedef struct _NanoRect
{
    NanoPoint p1;

    NanoPoint p2;

    lcdint_t width() const
    {
        return p2.x - p1.x + 1;
    }

    const NanoPoint size() const
    {
        return {width(), height()};
    }

    lcdint_t height() const
    {
        return p2.y - p1.y + 1;
    }

    void move(lcdint_t dx, lcdint_t dy)
    {
        p1.x += dx; p2.x += dx;
        p1.y += dy; p2.y += dy;
    }

    void addH(lcdint_t dx)
    {
        p1.x += dx; p2.x += dx;
    }

    void addV(lcdint_t dy)
    {
        p1.y += dy;
        p2.y += dy;
    }

    void setRect(lcdint_t l, lcdint_t t, lcdint_t r, lcdint_t b)
    {
        p1.x = l; p1.y = t;
        p2.x = r; p2.y = b;
    }

    void crop(const _NanoRect& rect)
    {
        if (p1.x < rect.p1.x) p1.x = rect.p1.x;
        if (p1.y < rect.p1.y) p1.y = rect.p1.y;
        if (p2.x > rect.p2.x) p2.x = rect.p2.x;
        if (p2.y > rect.p2.y) p2.y = rect.p2.y;
    }

    bool collisionX(lcdint_t x) const
    {
        return (x >= p1.x) && (x <= p2.x);
    }

    bool collisionY(lcdint_t y) const { return (y >= p1.y) && (y <= p2.y); };

    bool collision(const NanoPoint &p) const
    {
        return collisionX(p.x) && collisionY(p.y);
    }

    bool contains(const NanoPoint &p) const
    {
        return collision(p);
    }

    bool contains(const _NanoRect &r) const
    {
        return contains(r.p1) && contains(r.p2);
    }

    bool containsPartOf(const _NanoRect &r) const
    {
        return contains(r.p1) || contains(r.p2);
    }

    bool above(const NanoPoint &p) const { return (p.y < p1.y); };

    bool below(const NanoPoint &p) const { return (p.y > p2.y); };

    _NanoRect operator-(const _NanoPoint &p)
    {
        return { {static_cast<lcdint_t>(p1.x - p.x), static_cast<lcdint_t>(p1.y - p.y) },
                 {static_cast<lcdint_t>(p2.x - p.x), static_cast<lcdint_t>(p2.y - p.y) } };
    }

    _NanoRect operator+(const _NanoPoint &p)
    {
        return { {static_cast<lcdint_t>(p1.x + p.x), static_cast<lcdint_t>(p1.y + p.y) },
                 {static_cast<lcdint_t>(p2.x + p.x), static_cast<lcdint_t>(p2.y + p.y) } };
    }

    _NanoRect& operator+=(const _NanoPoint &p)
    {
        p1.x += p.x;
        p1.y += p.y;
        p2.x += p.x;
        p2.y += p.y;
        return *this;
    }

    _NanoRect operator>>(const uint8_t bits) const
    {
        return { p1 >> bits, p2 >> bits };
    };

    _NanoRect operator<<(const uint8_t bits) const
    {
        return { p1 << bits, p2 << bits };
    };


} NanoRect;

#ifndef DOXYGEN_SHOULD_SKIP_THIS
inline NanoRect operator+(const NanoRect& rect, const NanoPoint& p)
{
    return { { (lcdint_t)(rect.p1.x + p.x), (lcdint_t)(rect.p1.y + p.y) },
             { (lcdint_t)(rect.p2.x + p.x), (lcdint_t)(rect.p2.y + p.y) } };
}
#endif

#endif