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Demos: Add Eyes demo

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This is a neat clone of xeyes. It demoes the new ellipse filling functionality,
as well as the existing global mouse cursor tracking functionality :^)
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Sergey Bugaev 2020-05-24 21:08:26 +03:00 • committed by Andreas Kling
parent 8520d3a425
commit 174ac5d348
6 changed files with 254 additions and 0 deletions
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Demos/Eyes/EyesWidget.h Normal file
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/*
* 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.
*/
#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)
: m_num_eyes(num_eyes)
{
}
virtual void mousemove_event(GUI::MouseEvent&) override;
virtual void paint_event(GUI::PaintEvent&) override;
void render_eyeball(int index, GUI::Painter&) const;
Gfx::Point pupil_center(Gfx::Rect& eyeball_bounds) const;
Gfx::Point m_mouse_position;
int m_num_eyes { -1 };
};