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#pragma once
#include <AK/Function.h>
#include <AK/HashMap.h>
#include <AK/NonnullOwnPtrVector.h>
#include <AK/NonnullRefPtrVector.h>
#include <AK/StdLibExtras.h>
#include <LibDraw/TextAlignment.h>
#include <LibGUI/GScrollableWidget.h>
class HexEditor : public GScrollableWidget {
C_OBJECT(HexEditor)
public:
enum EditMode {
Hex,
Text
};
virtual ~HexEditor() override;
bool is_readonly() const { return m_readonly; }
void set_readonly(bool);
void set_buffer(const ByteBuffer&);
void fill_selection(u8 fill_byte);
bool write_to_file(const StringView& path);
bool copy_selected_text_to_clipboard();
bool copy_selected_hex_to_clipboard();
bool copy_selected_hex_to_clipboard_as_c_code();
int bytes_per_row() const { return m_bytes_per_row; }
void set_bytes_per_row(int);
void set_position(int position);
Function<void(int, EditMode, int, int)> on_status_change; // position, edit mode, selection start, selection end
Function<void()> on_change;
protected:
HexEditor(GWidget* parent);
virtual void paint_event(GPaintEvent&) override;
virtual void mousedown_event(GMouseEvent&) override;
virtual void mouseup_event(GMouseEvent&) override;
virtual void mousemove_event(GMouseEvent&) override;
virtual void keydown_event(GKeyEvent&) override;
virtual bool accepts_focus() const override { return true; }
virtual void leave_event(CEvent&) override;
private:
bool m_readonly { false };
int m_line_spacing { 4 };
int m_content_length { 0 };
int m_bytes_per_row { 16 };
ByteBuffer m_buffer;
bool m_in_drag_select { false };
int m_selection_start { -1 };
int m_selection_end { -1 };
int m_hover_pos { -1 };
HashMap<int, u8> m_tracked_changes;
int m_position { 0 };
int m_byte_position { 0 }; // 0 or 1
EditMode m_edit_mode { Hex };
void scroll_position_into_view(int position);
int total_rows() const { return ceil_div(m_content_length, m_bytes_per_row); }
int line_height() const { return font().glyph_height() + m_line_spacing; }
int character_width() const { return font().glyph_width('W'); }
int offset_margin_width() const { return 80; }
void hex_mode_keydown_event(GKeyEvent&);
void text_mode_keydown_event(GKeyEvent&);
void set_content_length(int); // I might make this public if I add fetching data on demand.
void update_status();
void did_change();
};
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