From a123725a12e948d78badb2cb686d38548f1c633b Mon Sep 17 00:00:00 2001 From: Albert Cervin Date: Thu, 6 Apr 2023 23:23:46 +0200 Subject: Implement window handling Also implement searching. fix undo boundaries when it checked for other save point, it used && instead of == which caused it to overwrite other types. Fix bytes vs chars bug in text_get_region --- src/dged/text.h | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 src/dged/text.h (limited to 'src/dged/text.h') diff --git a/src/dged/text.h b/src/dged/text.h new file mode 100644 index 0000000..fbee89b --- /dev/null +++ b/src/dged/text.h @@ -0,0 +1,54 @@ +#include +#include +#include + +// opaque so it is easier to change representation to gap, rope etc. +struct text; + +struct render_command; + +struct text *text_create(uint32_t initial_capacity); +void text_destroy(struct text *text); + +/** + * Clear the text without reclaiming memory + */ +void text_clear(struct text *text); + +void text_insert_at(struct text *text, uint32_t line, uint32_t col, + uint8_t *bytes, uint32_t nbytes, uint32_t *lines_added, + uint32_t *cols_added); + +void text_append(struct text *text, uint8_t *bytes, uint32_t nbytes, + uint32_t *lines_added, uint32_t *cols_added); + +void text_delete(struct text *text, uint32_t start_line, uint32_t start_col, + uint32_t end_line, uint32_t end_col); + +uint32_t text_num_lines(struct text *text); +uint32_t text_line_length(struct text *text, uint32_t lineidx); +uint32_t text_line_size(struct text *text, uint32_t lineidx); +uint32_t text_col_to_byteindex(struct text *text, uint32_t line, uint32_t col); +uint32_t text_byteindex_to_col(struct text *text, uint32_t line, + uint32_t byteindex); + +struct text_chunk { + uint8_t *text; + uint32_t nbytes; + uint32_t nchars; + uint32_t line; + bool allocated; +}; + +typedef void (*chunk_cb)(struct text_chunk *chunk, void *userdata); +void text_for_each_line(struct text *text, uint32_t line, uint32_t nlines, + chunk_cb callback, void *userdata); + +void text_for_each_chunk(struct text *text, chunk_cb callback, void *userdata); + +struct text_chunk text_get_line(struct text *text, uint32_t line); +struct text_chunk text_get_region(struct text *text, uint32_t start_line, + uint32_t start_col, uint32_t end_line, + uint32_t end_col); + +bool text_line_contains_unicode(struct text *text, uint32_t line); -- cgit v1.2.3