/*
    SPDX-FileCopyrightText: 2005 Piotr Szymanski <niedakh@gmail.com>

    SPDX-License-Identifier: GPL-2.0-or-later
*/

#include "core/misc.h"

#include <QDebug>

#include "debug_p.h"

using namespace Okular;

class TextSelection::Private
{
public:
    int direction;
    int it[2];
    NormalizedPoint cur[2];
};

TextSelection::TextSelection(const NormalizedPoint &start, const NormalizedPoint &end)
    : d(new Private)
{
    if (end.y - start.y < 0 || (end.y - start.y == 0 && end.x - start.x < 0))
        d->direction = 1;
    else
        d->direction = 0;

    d->cur[0] = start;
    d->cur[1] = end;
    d->it[d->direction % 2] = -1;
    d->it[(d->direction + 1) % 2] = -1;
}

TextSelection::~TextSelection()
{
    delete d;
}

void TextSelection::end(const NormalizedPoint &p)
{
    // changing direction as in 2b , assuming the bool->int conversion is correct
    int dir1 = d->direction;
    d->direction = (p.y - d->cur[0].y < 0 || (p.y - d->cur[0].y == 0 && p.x - d->cur[0].x < 0));
    if (d->direction != dir1)
        qCDebug(OkularCoreDebug) << "changing direction in selection";

    d->cur[1] = p;
}

void TextSelection::itE(int p)
{
    d->it[(d->direction + 1) % 2] = p;
}

void TextSelection::itB(int p)
{
    d->it[(d->direction) % 2] = p;
}

int TextSelection::direction() const
{
    return d->direction;
}

NormalizedPoint TextSelection::start() const
{
    return d->cur[d->direction % 2];
}

NormalizedPoint TextSelection::end() const
{
    return d->cur[(d->direction + 1) % 2];
}

int TextSelection::itB() const
{
    return d->it[d->direction % 2];
}

int TextSelection::itE() const
{
    return d->it[(d->direction + 1) % 2];
}