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70 lines
1.7 KiB
C++
70 lines
1.7 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include "Image.h"
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#include <LibGUI/Widget.h>
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namespace PixelPaint {
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class LayerListWidget final
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: public GUI::Widget
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, ImageClient {
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C_OBJECT(LayerListWidget);
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public:
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virtual ~LayerListWidget() override;
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void set_image(Image*);
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void set_selected_layer(Layer*);
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Function<void(Layer*)> on_layer_select;
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void select_bottom_layer();
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void select_top_layer();
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void move_selection(int delta);
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private:
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explicit LayerListWidget();
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virtual void paint_event(GUI::PaintEvent&) override;
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virtual void mousedown_event(GUI::MouseEvent&) override;
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virtual void mousemove_event(GUI::MouseEvent&) override;
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virtual void mouseup_event(GUI::MouseEvent&) override;
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virtual void resize_event(GUI::ResizeEvent&) override;
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virtual void image_did_add_layer(size_t) override;
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virtual void image_did_remove_layer(size_t) override;
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virtual void image_did_modify_layer(size_t) override;
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virtual void image_did_modify_layer_stack() override;
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void rebuild_gadgets();
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void relayout_gadgets();
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size_t hole_index_during_move() const;
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struct Gadget {
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size_t layer_index { 0 };
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Gfx::IntRect rect;
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Gfx::IntRect temporary_rect_during_move;
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bool is_moving { false };
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Gfx::IntPoint movement_delta;
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};
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bool is_moving_gadget() const { return m_moving_gadget_index.has_value(); }
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Optional<size_t> gadget_at(Gfx::IntPoint const&);
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Vector<Gadget> m_gadgets;
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RefPtr<Image> m_image;
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Optional<size_t> m_moving_gadget_index;
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Gfx::IntPoint m_moving_event_origin;
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};
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}
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