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/*
* Copyright (c) 2020, Ben Jilks <benjyjilks@gmail.com>
* Copyright (c) 2021, Mustafa Quraish <mustafa@serenityos.org>
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include "Tool.h"
namespace PixelPaint {
class BrushTool : public Tool {
public:
BrushTool() = default;
virtual ~BrushTool() override = default;
virtual void on_mousedown(Layer*, MouseEvent&) override;
virtual void on_mousemove(Layer*, MouseEvent&) override;
virtual void on_mouseup(Layer*, MouseEvent&) override;
virtual GUI::Widget* get_properties_widget() override;
virtual Variant<Gfx::StandardCursor, NonnullRefPtr<Gfx::Bitmap>> cursor() override { return Gfx::StandardCursor::Crosshair; }
void set_size(int size) { m_size = size; }
int size() const { return m_size; }
void set_hardness(int hardness) { m_hardness = hardness; }
int hardness() const { return m_hardness; }
double get_falloff(double distance)
{
double multiplicand = hardness() == 100 ? 1.0 : 1.0 / (100 - hardness());
return (1.0 - double { distance / size() }) * multiplicand;
}
protected:
virtual StringView tool_name() const override { return "Brush Tool"sv; }
virtual Color color_for(GUI::MouseEvent const& event);
virtual void draw_point(Gfx::Bitmap& bitmap, Gfx::Color const& color, Gfx::IntPoint const& point);
virtual void draw_line(Gfx::Bitmap& bitmap, Gfx::Color const& color, Gfx::IntPoint const& start, Gfx::IntPoint const& end);
private:
RefPtr<GUI::Widget> m_properties_widget;
int m_size { 20 };
int m_hardness { 80 };
bool m_was_drawing { false };
bool m_has_clicked { false };
Gfx::IntPoint m_last_position;
};
}
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