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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Mustafa Quraish <mustafa@serenityos.org>
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Variant.h>
#include <LibGUI/Action.h>
#include <LibGUI/Event.h>
#include <LibGUI/Forward.h>
#include <LibGUI/ValueSlider.h>
#include <LibGfx/StandardCursor.h>
namespace PixelPaint {
class ImageEditor;
class Layer;
class Tool {
public:
virtual ~Tool() = default;
class MouseEvent {
public:
enum class Action {
MouseDown,
MouseMove,
MouseUp
};
MouseEvent(Action action, GUI::MouseEvent& layer_event, GUI::MouseEvent& image_event, GUI::MouseEvent& raw_event)
: m_action(action)
, m_layer_event(layer_event)
, m_image_event(image_event)
, m_raw_event(raw_event)
{
}
Action action() const { return m_action; }
GUI::MouseEvent const& layer_event() const { return m_layer_event; }
GUI::MouseEvent const& image_event() const { return m_image_event; }
GUI::MouseEvent const& raw_event() const { return m_raw_event; }
private:
Action m_action;
GUI::MouseEvent& m_layer_event;
GUI::MouseEvent& m_image_event;
GUI::MouseEvent& m_raw_event;
};
virtual void on_mousedown(Layer*, MouseEvent&) { }
virtual void on_mousemove(Layer*, MouseEvent&) { }
virtual void on_mouseup(Layer*, MouseEvent&) { }
virtual void on_context_menu(Layer*, GUI::ContextMenuEvent&) { }
virtual void on_tool_button_contextmenu(GUI::ContextMenuEvent&) { }
virtual void on_second_paint(Layer const*, GUI::PaintEvent&) { }
virtual void on_keydown(GUI::KeyEvent&);
virtual void on_keyup(GUI::KeyEvent&) { }
virtual void on_tool_activation() { }
virtual GUI::Widget* get_properties_widget() { return nullptr; }
virtual Variant<Gfx::StandardCursor, NonnullRefPtr<Gfx::Bitmap>> cursor() { return Gfx::StandardCursor::None; }
virtual Gfx::IntPoint point_position_to_preferred_cell(Gfx::FloatPoint const& position) const { return position.to_type<int>(); }
void clear() { m_editor = nullptr; }
void setup(ImageEditor&);
ImageEditor const* editor() const { return m_editor; }
ImageEditor* editor() { return m_editor; }
GUI::Action* action() { return m_action; }
void set_action(GUI::Action*);
virtual StringView tool_name() const = 0;
// We only set the override_alt_key flag to true since the override is false by default. If false is desired do not call method.
virtual bool is_overriding_alt() { return false; };
protected:
Tool() = default;
WeakPtr<ImageEditor> m_editor;
RefPtr<GUI::Action> m_action;
Gfx::IntPoint editor_layer_location(Layer const& layer) const;
virtual Gfx::IntPoint editor_stroke_position(Gfx::IntPoint const& pixel_coords, int stroke_thickness) const;
void set_primary_slider(GUI::ValueSlider* primary) { m_primary_slider = primary; }
void set_secondary_slider(GUI::ValueSlider* secondary) { m_secondary_slider = secondary; }
GUI::ValueSlider* m_primary_slider { nullptr };
GUI::ValueSlider* m_secondary_slider { nullptr };
};
}
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