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			70 lines
		
	
	
	
		
			2.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			70 lines
		
	
	
	
		
			2.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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 * Copyright (c) 2020, Sergey Bugaev <bugaevc@serenityos.org>
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 * Copyright (c) 2022, the SerenityOS developers.
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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 <AK/Vector.h>
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#include <LibGUI/AbstractView.h>
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namespace GUI {
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class ColumnsView : public AbstractView {
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    C_OBJECT(ColumnsView)
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public:
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    int model_column() const { return m_model_column; }
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    void set_model_column(int column) { m_model_column = column; }
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    virtual ModelIndex index_at_event_position(Gfx::IntPoint) const override;
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    virtual Gfx::IntRect content_rect(ModelIndex const&) const override;
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    virtual Gfx::IntRect paint_invalidation_rect(ModelIndex const&) const override;
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    virtual void scroll_into_view(ModelIndex const&, bool scroll_horizontally, bool scroll_vertically) override;
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private:
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    ColumnsView();
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    virtual ~ColumnsView() override = default;
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    void push_column(ModelIndex const& parent_index);
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    void update_column_sizes();
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    int item_height() const { return 18; }
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    int icon_size() const { return 16; }
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    int icon_spacing() const { return 2; }
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    int text_padding() const { return 2; }
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    int column_separator_width() const { return 1; }
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    virtual void model_did_update(unsigned flags) override;
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    virtual void second_paint_event(PaintEvent&) override;
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    virtual void paint_event(PaintEvent&) override;
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    virtual void mousedown_event(MouseEvent& event) override;
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    virtual void mousemove_event(MouseEvent&) override;
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    virtual void mouseup_event(MouseEvent&) override;
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    virtual void select_range(ModelIndex const&) override;
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    void move_cursor(CursorMovement, SelectionUpdate) override;
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    virtual void select_all() override;
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    struct Column {
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        ModelIndex parent_index;
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        int width;
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        // TODO: per-column vertical scroll?
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    };
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    Optional<Column> column_at_event_position(Gfx::IntPoint) const;
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    ModelIndex index_at_event_position_in_column(Gfx::IntPoint, Column const&) const;
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    Gfx::IntRect index_content_rect(ModelIndex const&);
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    bool m_rubber_banding { false };
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    int m_rubber_band_origin { 0 };
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    Column m_rubber_band_origin_column;
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    int m_rubber_band_current { 0 };
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    Vector<Column> m_columns;
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    int m_model_column { 0 };
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};
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}
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