diff options
author | Campbell Barton <ideasman42@gmail.com> | 2019-07-11 08:25:52 +0300 |
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committer | Campbell Barton <ideasman42@gmail.com> | 2019-07-17 14:19:22 +0300 |
commit | 366865dd020904116086e6d9ec46b8f70c42cdd1 (patch) | |
tree | 3e6cc12c3bf5a64c2ee36378817f0ff0afbdadcc /source/blender/blenkernel/BKE_text.h | |
parent | 9e9fbb39d7f9e0a63c71fbc96237ace62fae0db6 (diff) |
Undo System: replace with simpler binary diffing buffer storage
Applying/undoing incremental changes didn't fit well when
mixed with periodic snapshots from mem-file undo.
This moves to a much simpler undo system.
- Uses array storage with de-duplication from `BLI_array_store`.
- Loads the buffer into existing text data,
for better performance on large files.
- Has the advantage that Python operators can be supported
since we don't depend on hard coded undo operations.
Solves T67045, T66695, T65909.
Diffstat (limited to 'source/blender/blenkernel/BKE_text.h')
-rw-r--r-- | source/blender/blenkernel/BKE_text.h | 47 |
1 files changed, 21 insertions, 26 deletions
diff --git a/source/blender/blenkernel/BKE_text.h b/source/blender/blenkernel/BKE_text.h index c78faa9dd18..6509788932c 100644 --- a/source/blender/blenkernel/BKE_text.h +++ b/source/blender/blenkernel/BKE_text.h @@ -30,7 +30,6 @@ extern "C" { struct Main; struct Text; struct TextLine; -struct TextUndoBuf; void BKE_text_free_lines(struct Text *text); void BKE_text_free(struct Text *text); @@ -49,8 +48,8 @@ void BKE_text_copy_data(struct Main *bmain, const int flag); struct Text *BKE_text_copy(struct Main *bmain, const struct Text *ta); void BKE_text_make_local(struct Main *bmain, struct Text *text, const bool lib_local); -void BKE_text_clear(struct Text *text, struct TextUndoBuf *utxt); -void BKE_text_write(struct Text *text, struct TextUndoBuf *utxt, const char *str); +void BKE_text_clear(struct Text *text); +void BKE_text_write(struct Text *text, const char *str); int BKE_text_file_modified_check(struct Text *text); void BKE_text_file_modified_ignore(struct Text *text); @@ -77,29 +76,26 @@ void txt_move_eol(struct Text *text, const bool sel); void txt_move_toline(struct Text *text, unsigned int line, const bool sel); void txt_move_to(struct Text *text, unsigned int line, unsigned int ch, const bool sel); void txt_pop_sel(struct Text *text); -void txt_delete_char(struct Text *text, struct TextUndoBuf *utxt); -void txt_delete_word(struct Text *text, struct TextUndoBuf *utxt); -void txt_delete_selected(struct Text *text, struct TextUndoBuf *utxt); +void txt_delete_char(struct Text *text); +void txt_delete_word(struct Text *text); +void txt_delete_selected(struct Text *text); void txt_sel_all(struct Text *text); void txt_sel_clear(struct Text *text); void txt_sel_line(struct Text *text); char *txt_sel_to_buf(struct Text *text, int *r_buf_strlen); -void txt_insert_buf(struct Text *text, struct TextUndoBuf *utxt, const char *in_buffer); -void txt_undo_add_op(struct Text *text, struct TextUndoBuf *utxt, int op); -void txt_do_undo(struct Text *text, struct TextUndoBuf *utxt); -void txt_do_redo(struct Text *text, struct TextUndoBuf *utxt); -void txt_split_curline(struct Text *text, struct TextUndoBuf *utxt); -void txt_backspace_char(struct Text *text, struct TextUndoBuf *utxt); -void txt_backspace_word(struct Text *text, struct TextUndoBuf *utxt); -bool txt_add_char(struct Text *text, struct TextUndoBuf *utxt, unsigned int add); -bool txt_add_raw_char(struct Text *text, struct TextUndoBuf *utxt, unsigned int add); -bool txt_replace_char(struct Text *text, struct TextUndoBuf *utxt, unsigned int add); -void txt_unindent(struct Text *text, struct TextUndoBuf *utxt); -void txt_comment(struct Text *text, struct TextUndoBuf *utxt); -void txt_indent(struct Text *text, struct TextUndoBuf *utxt); -void txt_uncomment(struct Text *text, struct TextUndoBuf *utxt); -void txt_move_lines(struct Text *text, struct TextUndoBuf *utxt, const int direction); -void txt_duplicate_line(struct Text *text, struct TextUndoBuf *utxt); +void txt_insert_buf(struct Text *text, const char *in_buffer); +void txt_split_curline(struct Text *text); +void txt_backspace_char(struct Text *text); +void txt_backspace_word(struct Text *text); +bool txt_add_char(struct Text *text, unsigned int add); +bool txt_add_raw_char(struct Text *text, unsigned int add); +bool txt_replace_char(struct Text *text, unsigned int add); +void txt_unindent(struct Text *text); +void txt_comment(struct Text *text); +void txt_indent(struct Text *text); +void txt_uncomment(struct Text *text); +void txt_move_lines(struct Text *text, const int direction); +void txt_duplicate_line(struct Text *text); int txt_setcurr_tab_spaces(struct Text *text, int space); bool txt_cursor_is_line_start(struct Text *text); bool txt_cursor_is_line_end(struct Text *text); @@ -125,10 +121,9 @@ enum { TXT_MOVE_LINE_DOWN = 1, }; -typedef struct TextUndoBuf { - char *buf; - int pos, len; -} TextUndoBuf; +/* Fast non-validating buffer conversion for undo. */ +char *txt_to_buf_for_undo(struct Text *text, int *r_buf_strlen); +void txt_from_buf_for_undo(struct Text *text, const char *buf, int buf_len); #ifdef __cplusplus } |