ladybird/Demos/Eyes/EyesWidget.h

59 lines
2.3 KiB
C++

/*
* Copyright (c) 2020, Sergey Bugaev <bugaevc@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <LibGUI/Widget.h>
#include <LibGfx/Point.h>
class EyesWidget final : public GUI::Widget {
C_OBJECT(EyesWidget)
public:
virtual ~EyesWidget();
void track_cursor_globally();
private:
EyesWidget(int num_eyes, int full_rows, int extra)
: m_full_rows(full_rows)
, m_extra_columns(extra)
{
m_num_rows = m_extra_columns > 0 ? m_full_rows + 1 : m_full_rows;
m_eyes_in_row = m_full_rows > 0 ? (num_eyes - m_extra_columns) / m_full_rows : m_extra_columns;
}
virtual void mousemove_event(GUI::MouseEvent&) override;
virtual void paint_event(GUI::PaintEvent&) override;
void render_eyeball(int row, int column, GUI::Painter&) const;
Gfx::IntPoint pupil_center(Gfx::IntRect& eyeball_bounds) const;
Gfx::IntPoint m_mouse_position;
int m_eyes_in_row { -1 };
int m_full_rows { -1 };
int m_extra_columns { -1 };
int m_num_rows { -1 };
};