Ejemplo n.º 1
0
        public TextEditingValue(string text = "", TextSelection selection = null, TextRange composing = null)
        {
            this.text      = text;
            this.composing = composing ?? TextRange.empty;

            if (selection != null && selection.start >= 0 && selection.end >= 0)
            {
                // handle surrogate pair emoji, which takes 2 utf16 chars
                // if selection cuts in the middle of the emoji, move it to the end
                int start = selection.start, end = selection.end;
                if (start < text.Length && char.IsLowSurrogate(text[start]))
                {
                    start++;
                }
                if (end < text.Length && char.IsLowSurrogate(text[end]))
                {
                    end++;
                }
                this.selection = selection.copyWith(start, end);
            }
            else
            {
                this.selection = TextSelection.collapsed(-1);
            }
        }
Ejemplo n.º 2
0
        //unity-specific
        public TextEditingValue moveExtent(int move)
        {
            int offset = selection.extentOffset + move;

            offset = Mathf.Max(0, offset);
            offset = Mathf.Min(offset, text.Length);
            return(copyWith(selection: selection.copyWith(extentOffset: offset)));
        }