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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include "Guide.h"
#include "Image.h"
#include "Selection.h"
#include <LibGUI/Frame.h>
#include <LibGUI/UndoStack.h>
#include <LibGfx/Point.h>
namespace PixelPaint {
class Layer;
class Tool;
class ImageEditor final
: public GUI::Frame
, public ImageClient {
C_OBJECT(ImageEditor);
public:
virtual ~ImageEditor() override;
Image const& image() const { return m_image; }
Image& image() { return m_image; }
Layer* active_layer() { return m_active_layer; }
void set_active_layer(Layer*);
Tool* active_tool() { return m_active_tool; }
void set_active_tool(Tool*);
void did_complete_action();
bool undo();
bool redo();
void add_guide(NonnullRefPtr<Guide> guide) { m_guides.append(guide); }
void remove_guide(Guide const& guide)
{
m_guides.remove_first_matching([&](auto& entry) { return &guide == entry.ptr(); });
}
void layers_did_change();
Layer* layer_at_editor_position(Gfx::IntPoint const&);
float scale() const { return m_scale; }
void scale_centered_on_position(Gfx::IntPoint const&, float);
void reset_scale_and_position();
void scale_by(float);
Color primary_color() const { return m_primary_color; }
void set_primary_color(Color);
Color secondary_color() const { return m_secondary_color; }
void set_secondary_color(Color);
Selection& selection() { return m_selection; }
Selection const& selection() const { return m_selection; }
Color color_for(GUI::MouseEvent const&) const;
Color color_for(GUI::MouseButton) const;
Function<void(Color)> on_primary_color_change;
Function<void(Color)> on_secondary_color_change;
Function<void(Layer*)> on_active_layer_change;
Function<void(String const&)> on_image_title_change;
Function<void(Gfx::IntPoint const&)> on_image_mouse_position_change;
Function<void(void)> on_leave;
Gfx::FloatRect layer_rect_to_editor_rect(Layer const&, Gfx::IntRect const&) const;
Gfx::FloatRect image_rect_to_editor_rect(Gfx::IntRect const&) const;
Gfx::FloatRect editor_rect_to_image_rect(Gfx::IntRect const&) const;
Gfx::FloatPoint layer_position_to_editor_position(Layer const&, Gfx::IntPoint const&) const;
Gfx::FloatPoint image_position_to_editor_position(Gfx::IntPoint const&) const;
Gfx::FloatPoint editor_position_to_image_position(Gfx::IntPoint const&) const;
NonnullRefPtrVector<Guide> const& guides() const { return m_guides; }
bool guide_visibility() { return m_show_guides; }
void set_guide_visibility(bool show_guides);
Function<void(bool)> on_set_guide_visibility;
private:
explicit ImageEditor(NonnullRefPtr<Image>);
virtual void paint_event(GUI::PaintEvent&) override;
virtual void second_paint_event(GUI::PaintEvent&) override;
virtual void mousedown_event(GUI::MouseEvent&) override;
virtual void mousemove_event(GUI::MouseEvent&) override;
virtual void mouseup_event(GUI::MouseEvent&) override;
virtual void mousewheel_event(GUI::MouseEvent&) override;
virtual void keydown_event(GUI::KeyEvent&) override;
virtual void keyup_event(GUI::KeyEvent&) override;
virtual void context_menu_event(GUI::ContextMenuEvent&) override;
virtual void resize_event(GUI::ResizeEvent&) override;
virtual void enter_event(Core::Event&) override;
virtual void leave_event(Core::Event&) override;
virtual void image_did_change(Gfx::IntRect const&) override;
virtual void image_select_layer(Layer*) override;
virtual void image_did_change_title(String const&) override;
GUI::MouseEvent event_adjusted_for_layer(GUI::MouseEvent const&, Layer const&) const;
GUI::MouseEvent event_with_pan_and_scale_applied(GUI::MouseEvent const&) const;
void clamped_scale(float);
void relayout();
NonnullRefPtr<Image> m_image;
RefPtr<Layer> m_active_layer;
OwnPtr<GUI::UndoStack> m_undo_stack;
NonnullRefPtrVector<Guide> m_guides;
bool m_show_guides { true };
Tool* m_active_tool { nullptr };
Color m_primary_color { Color::Black };
Color m_secondary_color { Color::White };
Gfx::IntRect m_editor_image_rect;
float m_scale { 1 };
Gfx::FloatPoint m_pan_origin;
Gfx::FloatPoint m_saved_pan_origin;
Gfx::IntPoint m_click_position;
Gfx::StandardCursor m_active_cursor { Gfx::StandardCursor::None };
Selection m_selection;
};
}
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