diff options
Diffstat (limited to 'source/blender/editors/interface/interface_handlers.c')
-rw-r--r-- | source/blender/editors/interface/interface_handlers.c | 175 |
1 files changed, 101 insertions, 74 deletions
diff --git a/source/blender/editors/interface/interface_handlers.c b/source/blender/editors/interface/interface_handlers.c index 6699e8f8701..f4400d2d7db 100644 --- a/source/blender/editors/interface/interface_handlers.c +++ b/source/blender/editors/interface/interface_handlers.c @@ -1252,6 +1252,86 @@ static short test_special_char(char ch) return 0; } +static int ui_textedit_step_next_utf8(const char *str, size_t maxlen, short *pos) +{ + const char *str_end= str + (maxlen + 1); + const char *str_pos= str + (*pos); + const char *str_next= BLI_str_find_next_char_utf8(str_pos, str_end); + if (str_next) { + (*pos) += (str_next - str_pos); + if((*pos) > maxlen) (*pos)= maxlen; + return TRUE; + } + + return FALSE; +} + +static int ui_textedit_step_prev_utf8(const char *str, size_t UNUSED(maxlen), short *pos) +{ + if((*pos) > 0) { + const char *str_pos= str + (*pos); + const char *str_prev= BLI_str_find_prev_char_utf8(str, str_pos); + if (str_prev) { + (*pos) -= (str_pos - str_prev); + return TRUE; + } + } + + return FALSE; +} + +static void ui_textedit_step_utf8(const char *str, size_t maxlen, + short *pos, const char direction, + const short do_jump, const short do_all) +{ + const short pos_prev= *pos; + + if(direction) { /* right*/ + if(do_jump) { + /* jump between special characters (/,\,_,-, etc.), + * look at function test_special_char() for complete + * list of special character, ctr -> */ + while((*pos) < maxlen) { + if (ui_textedit_step_next_utf8(str, maxlen, pos)) { + if(!do_all && test_special_char(str[(*pos)])) break; + } + else { + break; /* unlikely but just incase */ + } + } + } + else { + ui_textedit_step_next_utf8(str, maxlen, pos); + } + } + else { /* left */ + if(do_jump) { + /* left only: compensate for index/change in direction */ + ui_textedit_step_prev_utf8(str, maxlen, pos); + + /* jump between special characters (/,\,_,-, etc.), + * look at function test_special_char() for complete + * list of special character, ctr -> */ + while ((*pos) > 0) { + if (ui_textedit_step_prev_utf8(str, maxlen, pos)) { + if(!do_all && test_special_char(str[(*pos)])) break; + } + else { + break; + } + } + + /* left only: compensate for index/change in direction */ + if(((*pos) != 0) && ABS(pos_prev - (*pos)) > 1) { + ui_textedit_step_next_utf8(str, maxlen, pos); + } + } + else { + ui_textedit_step_prev_utf8(str, maxlen, pos); + } + } +} + static int ui_textedit_delete_selection(uiBut *but, uiHandleButtonData *data) { char *str= data->str; @@ -1294,13 +1374,17 @@ static void ui_textedit_set_cursor_pos(uiBut *but, uiHandleButtonData *data, sho /* mouse dragged outside the widget to the left */ if (x < startx && but->ofs > 0) { - int i= but->ofs; + short i= but->ofs; origstr[but->ofs] = 0; while (i > 0) { - i--; - if (BLF_width(fstyle->uifont_id, origstr+i) > (startx - x)*0.25f) break; // 0.25 == scale factor for less sensitivity + if (ui_textedit_step_prev_utf8(origstr, but->ofs, &i)) { + if (BLF_width(fstyle->uifont_id, origstr+i) > (startx - x)*0.25f) break; // 0.25 == scale factor for less sensitivity + } + else { + break; /* unlikely but possible */ + } } but->ofs = i; but->pos = but->ofs; @@ -1314,9 +1398,13 @@ static void ui_textedit_set_cursor_pos(uiBut *but, uiHandleButtonData *data, sho /* XXX does not take zoom level into account */ while (startx + aspect_sqrt * BLF_width(fstyle->uifont_id, origstr+but->ofs) > x) { if (but->pos <= 0) break; - but->pos--; - origstr[but->pos+but->ofs] = 0; - } + if (ui_textedit_step_prev_utf8(origstr, but->ofs, &but->pos)) { + origstr[but->pos+but->ofs] = 0; + } + else { + break; /* unlikely but possible */ + } + } but->pos += but->ofs; if(but->pos<0) but->pos= 0; } @@ -1391,48 +1479,7 @@ static void ui_textedit_move(uiBut *but, uiHandleButtonData *data, int direction data->selextend = 0; } else { - if(direction) { /* right*/ - if(jump) { - /* jump between special characters (/,\,_,-, etc.), - * look at function test_special_char() for complete - * list of special character, ctr -> */ - while(but->pos < len) { - but->pos++; - if(!jump_all && test_special_char(str[but->pos])) break; - } - } - else { - but->pos++; - if(but->pos > len) but->pos= len; - } - } - else { /* left */ - if(jump) { - - /* left only: compensate for index/change in direction */ - if(but->pos > 0) { - but->pos--; - } - - /* jump between special characters (/,\,_,-, etc.), - * look at function test_special_char() for complete - * list of special character, ctr -> */ - while(but->pos > 0){ - but->pos--; - if(!jump_all && test_special_char(str[but->pos])) break; - } - - /* left only: compensate for index/change in direction */ - if((but->pos != 0) && ABS(pos_prev - but->pos) > 1) { - but->pos++; - } - - } - else { - if(but->pos>0) but->pos--; - } - } - + ui_textedit_step_utf8(str, len, &but->pos, direction, jump, jump_all); if(select) { /* existing selection */ @@ -1498,21 +1545,10 @@ static int ui_textedit_delete(uiBut *but, uiHandleButtonData *data, int directio changed= ui_textedit_delete_selection(but, data); } else if(but->pos>=0 && but->pos<len) { + short pos= but->pos; int step; - - if (jump) { - x = but->pos; - step= 0; - while(x < len) { - x++; - step++; - if(test_special_char(str[x])) break; - } - } - else { - step= 1; - } - + ui_textedit_step_utf8(str, len, &pos, direction, jump, all); + step= pos - but->pos; for(x=but->pos; x<len; x++) str[x]= str[x+step]; str[len-step]='\0'; @@ -1525,20 +1561,11 @@ static int ui_textedit_delete(uiBut *but, uiHandleButtonData *data, int directio changed= ui_textedit_delete_selection(but, data); } else if(but->pos>0) { + short pos= but->pos; int step; - if (jump) { - x = but->pos; - step= 0; - while(x > 0) { - x--; - step++; - if((step > 1) && test_special_char(str[x])) break; - } - } - else { - step= 1; - } + ui_textedit_step_utf8(str, len, &pos, direction, jump, all); + step= but->pos - pos; for(x=but->pos; x<len; x++) str[x-step]= str[x]; |