diff options
Diffstat (limited to 'source/blender/blenkernel/intern/text.c')
-rw-r--r-- | source/blender/blenkernel/intern/text.c | 52 |
1 files changed, 44 insertions, 8 deletions
diff --git a/source/blender/blenkernel/intern/text.c b/source/blender/blenkernel/intern/text.c index 184984352ba..3936c533a41 100644 --- a/source/blender/blenkernel/intern/text.c +++ b/source/blender/blenkernel/intern/text.c @@ -791,6 +791,29 @@ int txt_utf8_index_to_offset(const char *str, int index) return offset; } +int txt_utf8_offset_to_column(const char *str, int offset) +{ + int column = 0, pos = 0; + while (pos < offset) { + column += BLI_str_utf8_char_width_safe(str + pos); + pos += BLI_str_utf8_size_safe(str + pos); + } + return column; +} + +int txt_utf8_column_to_offset(const char *str, int column) +{ + int offset = 0, pos = 0, col; + while (pos < column) { + col = BLI_str_utf8_char_width_safe(str + offset); + if (pos + col > column) + break; + offset += BLI_str_utf8_size_safe(str + offset); + pos += col; + } + return offset; +} + /* returns the real number of characters in string */ /* not the same as BLI_strlen_utf8, which returns length for wide characters */ static int txt_utf8_len(const char *src) @@ -804,6 +827,17 @@ static int txt_utf8_len(const char *src) return len; } +static int txt_utf8_width(const char *src) +{ + int col = 0; + + for (; *src; src += BLI_str_utf8_size(src)) { + col += BLI_str_utf8_char_width(src); + } + + return col; +} + void txt_move_up(Text *text, short sel) { TextLine **linep; @@ -815,10 +849,10 @@ void txt_move_up(Text *text, short sel) if (!*linep) return; if ((*linep)->prev) { - int index = txt_utf8_offset_to_index((*linep)->line, *charp); + int column = txt_utf8_offset_to_column((*linep)->line, *charp); *linep = (*linep)->prev; - if (index > txt_utf8_len((*linep)->line)) *charp = (*linep)->len; - else *charp = txt_utf8_index_to_offset((*linep)->line, index); + if (column > txt_utf8_width((*linep)->line)) *charp = (*linep)->len; + else *charp = txt_utf8_column_to_offset((*linep)->line, column); } else { @@ -839,10 +873,10 @@ void txt_move_down(Text *text, short sel) if (!*linep) return; if ((*linep)->next) { - int index = txt_utf8_offset_to_index((*linep)->line, *charp); + int column = txt_utf8_offset_to_column((*linep)->line, *charp); *linep = (*linep)->next; - if (index > txt_utf8_len((*linep)->line)) *charp = (*linep)->len; - else *charp = txt_utf8_index_to_offset((*linep)->line, index); + if (column > txt_utf8_width((*linep)->line)) *charp = (*linep)->len; + else *charp = txt_utf8_column_to_offset((*linep)->line, column); } else { txt_move_eol(text, sel); @@ -930,7 +964,9 @@ void txt_move_right(Text *text, short sel) tabsize++; (*charp) = i; } - else (*charp) += BLI_str_utf8_size((*linep)->line + *charp); + else { + (*charp) += BLI_str_utf8_size((*linep)->line + *charp); + } } if (!sel) txt_pop_sel(text); @@ -2825,7 +2861,7 @@ void txt_move_lines(struct Text *text, const int direction) } } -int setcurr_tab_spaces(Text *text, int space) +int txt_setcurr_tab_spaces(Text *text, int space) { int i = 0; int test = 0; |