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Code Issues Activity Actions

HexEditor: Implement undo and redo actions

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kamp 2022-09-07 23:41:37 +02:00 • committed by Linus Groh
parent 24f729d0ef
commit 8b0a464f5c
6 changed files with 204 additions and 7 deletions
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8
Userland/Applications/HexEditor/HexEditor.h
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@ -19,6 +19,7 @@
#include <AK/StdLibExtras.h>
#include <LibCore/Timer.h>
#include <LibGUI/AbstractScrollableWidget.h>
#include <LibGUI/UndoStack.h>
#include <LibGfx/Font/Font.h>
#include <LibGfx/TextAlignment.h>
@ -40,6 +41,10 @@ public:
bool save_as(NonnullRefPtr<Core::File>);
bool save();
bool undo();
bool redo();
GUI::UndoStack& undo_stack();
void select_all();
bool has_selection() const { return m_selection_start < m_selection_end && m_document->size() > 0; }
size_t selection_size();
@ -83,6 +88,7 @@ private:
NonnullRefPtr<Core::Timer> m_blink_timer;
bool m_cursor_blink_active { false };
NonnullOwnPtr<HexDocument> m_document;
GUI::UndoStack m_undo_stack;
static constexpr int m_address_bar_width = 90;
static constexpr int m_padding = 5;
@ -101,6 +107,8 @@ private:
void set_content_length(size_t); // I might make this public if I add fetching data on demand.
void update_status();
void did_change();
void did_complete_action(size_t position, u8 old_value, u8 new_value);
void did_complete_action(size_t position, ByteBuffer&& old_values, ByteBuffer&& new_values);
void reset_cursor_blink_state();
};