mirror of
https://github.com/RGBCube/serenity
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c4c9971ed0
This patch changes cursor type from caret to black box for both Hex and Text modes, because right now the way how blinking caret looks like is more closer to "insert" mode in similar editors, whereas the real behavior of this cursor is more of a "replace" mode seen in similar editors like GHex.
113 lines
4 KiB
C++
113 lines
4 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, Mustafa Quraish <mustafa@serenityos.org>
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* Copyright (c) 2022, the SerenityOS developers.
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* Copyright (c) 2022, Timothy Slater <tslater2006@gmail.com>
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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 "HexDocument.h"
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#include "SearchResultsModel.h"
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#include <AK/ByteBuffer.h>
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#include <AK/Function.h>
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#include <AK/HashMap.h>
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#include <AK/StdLibExtras.h>
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#include <LibCore/Timer.h>
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#include <LibGUI/AbstractScrollableWidget.h>
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#include <LibGUI/UndoStack.h>
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#include <LibGfx/Font/Font.h>
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#include <LibGfx/TextAlignment.h>
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namespace HexEditor {
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class HexEditor : public GUI::AbstractScrollableWidget {
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C_OBJECT(HexEditor)
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public:
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enum EditMode {
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Hex,
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Text
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};
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virtual ~HexEditor() override = default;
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size_t buffer_size() const { return m_document->size(); }
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ErrorOr<void> open_new_file(size_t size);
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void open_file(NonnullOwnPtr<Core::File> file);
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ErrorOr<void> fill_selection(u8 fill_byte);
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Optional<u8> get_byte(size_t position);
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ByteBuffer get_selected_bytes();
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ErrorOr<void> save_as(NonnullOwnPtr<Core::File>);
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ErrorOr<void> save();
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bool undo();
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bool redo();
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GUI::UndoStack& undo_stack();
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void select_all();
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bool has_selection() const { return m_selection_start < m_selection_end && m_document->size() > 0; }
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size_t selection_size() const;
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size_t selection_start_offset() const { return m_selection_start; }
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bool copy_selected_text_to_clipboard();
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bool copy_selected_hex_to_clipboard();
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bool copy_selected_hex_to_clipboard_as_c_code();
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size_t bytes_per_row() const { return m_bytes_per_row; }
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void set_bytes_per_row(size_t);
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void set_position(size_t position);
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void set_selection(size_t position, size_t length);
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void highlight(size_t start, size_t end);
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Optional<size_t> find(ByteBuffer& needle, size_t start = 0);
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Optional<size_t> find_and_highlight(ByteBuffer& needle, size_t start = 0);
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Vector<Match> find_all(ByteBuffer& needle, size_t start = 0);
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Vector<Match> find_all_strings(size_t min_length = 4);
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Function<void(size_t, EditMode, size_t, size_t)> on_status_change; // position, edit mode, selection start, selection end
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Function<void(bool is_document_dirty)> on_change;
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protected:
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HexEditor();
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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 mouseup_event(GUI::MouseEvent&) override;
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virtual void mousemove_event(GUI::MouseEvent&) override;
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virtual void keydown_event(GUI::KeyEvent&) override;
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private:
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size_t m_line_spacing { 4 };
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size_t m_content_length { 0 };
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size_t m_bytes_per_row { 16 };
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bool m_in_drag_select { false };
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size_t m_selection_start { 0 };
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size_t m_selection_end { 0 };
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size_t m_position { 0 };
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bool m_cursor_at_low_nibble { false };
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EditMode m_edit_mode { Hex };
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NonnullOwnPtr<HexDocument> m_document;
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GUI::UndoStack m_undo_stack;
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static constexpr int m_address_bar_width = 90;
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static constexpr int m_padding = 5;
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void scroll_position_into_view(size_t position);
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size_t total_rows() const { return ceil_div(m_content_length, m_bytes_per_row); }
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size_t line_height() const { return font().pixel_size_rounded_up() + m_line_spacing; }
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size_t character_width() const { return font().glyph_width('W'); }
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size_t cell_width() const { return character_width() * 3; }
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size_t offset_margin_width() const { return 80; }
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ErrorOr<void> hex_mode_keydown_event(GUI::KeyEvent&);
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ErrorOr<void> text_mode_keydown_event(GUI::KeyEvent&);
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void set_content_length(size_t); // I might make this public if I add fetching data on demand.
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void update_status();
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void did_change();
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ErrorOr<void> did_complete_action(size_t position, u8 old_value, u8 new_value);
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ErrorOr<void> did_complete_action(size_t position, ByteBuffer&& old_values, ByteBuffer&& new_values);
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};
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}
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