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TextEditor: Added redo functionality & proper stack manipulation

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Added redo functionality & added m_undo_stack_index that moves back &
forth on the stack depending on the undo's & redo's.
This commit is contained in:
rhin123 2019-11-05 16:37:47 -06:00 • committed by Andreas Kling
parent 306cd0d840
commit 96c1e36ed3
2 changed files with 97 additions and 44 deletions
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14
Libraries/LibGUI/GTextEditor.h
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@ -4,6 +4,7 @@
#include <AK/HashMap.h>
#include <AK/NonnullOwnPtrVector.h>
#include <AK/NonnullRefPtrVector.h>
#include <LibCore/CTimer.h>
#include <LibDraw/TextAlignment.h>
#include <LibGUI/GScrollableWidget.h>
#include <LibGUI/GTextDocument.h>
@ -158,6 +159,7 @@ private:
Rect ruler_rect_in_inner_coordinates() const;
Rect visible_text_rect_in_inner_coordinates() const;
void recompute_all_visual_lines();
void ensure_cursor_is_valid();
class UndoCommand {
@ -216,6 +218,10 @@ private:
GTextPosition m_text_position;
};
struct UndoCommandsContainer {
NonnullOwnPtrVector<UndoCommand> m_undo_vector;
};
void add_to_undo_stack(NonnullOwnPtr<UndoCommand> undo_command);
int visual_line_containing(int line_index, int column) const;
void recompute_visual_lines(int line_index);
@ -244,10 +250,10 @@ private:
RefPtr<GAction> m_delete_action;
CElapsedTimer m_triple_click_timer;
NonnullRefPtrVector<GAction> m_custom_context_menu_actions;
NonnullOwnPtrVector<NonnullOwnPtrVector<UndoCommand>> m_undo_stack;
int m_undo_index = 0;
int m_undo_timer = 0;
int m_prev_undo_stack_size = 0;
NonnullOwnPtrVector<UndoCommandsContainer> m_undo_stack;
int m_undo_stack_index = 0;
RefPtr<CTimer> m_undo_timer;
int m_last_updated_undo_vector_size = 0;
RefPtr<GTextDocument> m_document;