// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Input state keeper for the livecoding tool
 *
 * Authors:
 *   Sol Bekic <s+inkscape@s-ol.nu>
 * Copyright (C) 2019 Authors
 *
 * Released under GNU GPL v2+, read the file 'COPYING' for more information.
 */

#include "livecode/input.h"
#include "livecode/api.h"
#include "desktop.h"

namespace Inkscape {
namespace Livecode {


Mouse::Mouse(API &api)
    : api(api)
{
}

void Mouse::finish_frame()
{
    prev_mask = last_mask;
    prev_pos  = last_pos;
}

void Mouse::push_event(GdkEvent *event)
{
    switch (event->type) {
    case GDK_BUTTON_PRESS: {
        last_mask |= 1 << event->button.button - 1;
        break;
    }
    case GDK_BUTTON_RELEASE: {
        last_mask &= ~(1 << event->button.button - 1);
        break;
    }
    case GDK_MOTION_NOTIFY: {
        last_pos = Geom::Point(event->motion.x, event->motion.y) * api.dt2ui();
        break;
    }
    default:
        break;
    }
}

InputState Mouse::event(guint button) const {
    guint const flag = 1 << button - 1;
    bool last = last_mask & flag;
    bool prev = prev_mask & flag;

    if (last && prev) return INPUTSTATE_HELD;
    else if (last) return INPUTSTATE_PRESSED;
    else if (prev) return INPUTSTATE_RELEASED;
    return INPUTSTATE_NONE;
}

bool Mouse::pressed(guint button) const {
    guint const flag = 1 << button - 1;
    return (last_mask & flag) && !(prev_mask & flag);
}

bool Mouse::held(guint button) const {
    return last_mask & (1 << button -1);
}

bool Mouse::released(guint button) const {
    guint const flag = 1 << button - 1;
    return (prev_mask & flag) && !(last_mask & flag);
}

Geom::Point Mouse::pos() const {
    return ui_pos() * api.ui2doc();
}
Geom::Point Mouse::delta() const {
    return ui_delta() * api.ui2doc_vec();
}

Geom::Point Mouse::ui_pos() const {
    return last_pos;
}
Geom::Point Mouse::ui_delta() const {
    return last_pos - prev_pos;
}


}
}

/*
  Local Variables:
  mode:c++
  c-file-style:"stroustrup"
  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
  indent-tabs-mode:nil
  fill-column:99
  End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :