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			82 lines
		
	
	
	
		
			2.5 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			82 lines
		
	
	
	
		
			2.5 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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|  * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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|  * Copyright (c) 2021, Mustafa Quraish <mustafa@serenityos.org>
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|  *
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|  * SPDX-License-Identifier: BSD-2-Clause
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|  */
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| 
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| #pragma once
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| 
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| #include "Image.h"
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| #include <LibGUI/AbstractScrollableWidget.h>
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| 
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| namespace PixelPaint {
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| 
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| class LayerListWidget final
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|     : public GUI::AbstractScrollableWidget
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|     , ImageClient {
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|     C_OBJECT(LayerListWidget);
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| 
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| public:
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|     virtual ~LayerListWidget() override;
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| 
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|     void set_image(Image*);
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| 
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|     void set_selected_layer(Layer*);
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|     Function<void(Layer*)> on_layer_select;
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|     Function<void(GUI::ContextMenuEvent&)> on_context_menu_request;
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| 
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|     void select_bottom_layer();
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|     void select_top_layer();
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|     void cycle_through_selection(int delta);
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| 
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| private:
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|     explicit LayerListWidget();
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| 
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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 context_menu_event(GUI::ContextMenuEvent&) override;
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|     virtual void resize_event(GUI::ResizeEvent&) override;
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|     virtual void doubleclick_event(GUI::MouseEvent&) override;
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| 
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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_properties(size_t) override;
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|     virtual void image_did_modify_layer_bitmap(size_t) override;
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|     virtual void image_did_modify_layer_stack() override;
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|     virtual void on_automatic_scrolling_timer_fired() override;
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| 
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|     void rebuild_gadgets();
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|     void relayout_gadgets();
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| 
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|     size_t hole_index_during_move() const;
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| 
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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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|         bool is_moving { false };
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|         Gfx::IntPoint movement_delta;
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|     };
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| 
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|     void get_gadget_rects(Gadget const& gadget, bool is_masked, Gfx::IntRect& outer_rect, Gfx::IntRect& outer_thumbnail_rect, Gfx::IntRect& inner_thumbnail_rect, Gfx::IntRect& outer_mask_thumbnail_rect, Gfx::IntRect& inner_mask_thumbnail_rect, Gfx::IntRect& text_rect);
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|     bool is_moving_gadget() const { return m_moving_gadget_index.has_value(); }
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| 
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|     Optional<size_t> gadget_at(Gfx::IntPoint const&);
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| 
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|     size_t to_layer_index(size_t gadget_index) const;
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|     size_t to_gadget_index(size_t layer_index) const;
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| 
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|     Vector<Gadget> m_gadgets;
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|     RefPtr<Image> m_image;
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| 
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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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|     Gfx::IntPoint m_automatic_scroll_delta;
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| 
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|     size_t m_selected_gadget_index { 0 };
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| };
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| 
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| }
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