fn calc_truncation(&mut self, _size: Vec2) {
        if self.tags.is_empty() {
            self.layout.truncate_tags = None;
            return;
        }
        self.layout.widths.clear();
        self.layout
            .widths
            .extend(self.tags.iter().map(|x| x.width()));
        let widths = &self.layout.widths;
        let total_size = widths.iter().copied().sum::<usize>();
        let total_size_with_sep = total_size + self.tags.len() - 1;
        let mut truncate = None;
        let max_size = self.layout.size.x / 2;

        if total_size_with_sep > max_size {
            const MIN_LEN_TAGS: usize = 4;

            // The text is too long, we need to truncate some tags.
            // We try to truncate all tags below a certain length.
            {
                let mut sizes_sorted = widths.clone();
                sizes_sorted.sort_unstable_by(|a, b| a.cmp(b).reverse());
                let mut truncate_cnt = 0;
                let mut truncate_to = sizes_sorted[0];
                let mut total_width = total_size_with_sep;
                let truncate_to = loop {
                    truncate_cnt += 1;
                    while sizes_sorted.get(truncate_cnt).copied() == Some(truncate_to) {
                        truncate_cnt += 1;
                    }
                    let new_truncate_to = sizes_sorted.get(truncate_cnt).copied().unwrap_or(0);

                    let new_total_width =
                        total_width - (truncate_to - new_truncate_to) * truncate_cnt;
                    if new_total_width <= max_size {
                        break new_truncate_to + (max_size - new_total_width) / truncate_cnt;
                    } else {
                        truncate_to = new_truncate_to;
                        total_width = new_total_width;
                    }
                };
                truncate = Some(std::cmp::max(truncate_to, MIN_LEN_TAGS));
            }
        }
        self.layout.truncate_tags = truncate;
    }
/// Do layout and truncate tags when they are too long
Do layout and truncate tags when they are too long
Do layout and truncate tags when they are too long
fn calc_truncation(&mut self, _size: Vec2) {
        if self.tags.is_empty() {
            self.layout.truncate_tags = None;
            return;
        }
        self.layout.widths.clear();
        self.layout
            .widths
            .extend(self.tags.iter().map(|x| x.width()));
        let widths = &self.layout.widths;
        let total_size = widths.iter().copied().sum::<usize>();
        let total_size_with_sep = total_size + self.tags.len() - 1;
        let mut truncate = None;
        let max_size = self.layout.size.x / 2;
        if total_size_with_sep > max_size {
            const MIN_LEN_TAGS: usize = 4;
            // The text is too long, we need to truncate some tags.
            // We try to truncate all tags below a certain length.
            {
                let mut sizes_sorted = widths.clone();
                sizes_sorted.sort_unstable_by(|a, b| a.cmp(b).reverse());
                let mut truncate_cnt = 0;
                let mut truncate_to = sizes_sorted[0];
                let mut total_width = total_size_with_sep;
                let truncate_to = loop {
                    truncate_cnt += 1;
                    while sizes_sorted.get(truncate_cnt).copied() == Some(truncate_to) {
                        truncate_cnt += 1;
                    }
                    let new_truncate_to = sizes_sorted.get(truncate_cnt).copied().unwrap_or(0);
                    let new_total_width =
                        total_width - (truncate_to - new_truncate_to) * truncate_cnt;
                    if new_total_width <= max_size {
                        break new_truncate_to + (max_size - new_total_width) / truncate_cnt;
                    } else {
                        truncate_to = new_truncate_to;
                        total_width = new_total_width;
                    }
                };
                truncate = Some(std::cmp::max(truncate_to, MIN_LEN_TAGS));
            }
        }
        self.layout.truncate_tags = truncate;
    }
fn calc_truncation ( & mut self , _size : Vec2 ) { if self . tags . is_empty ( ) { self . layout . truncate_tags = None ; return ; } self . layout . widths . clear ( ) ; self . layout . widths . extend ( self . tags . iter ( ) . map ( | x | x . width ( ) ) ) ; let widths = & self . layout . widths ; let total_size = widths . iter ( ) . copied ( ) . sum :: < usize > ( ) ; let total_size_with_sep = total_size + self . tags . len ( ) - 1 ; let mut truncate = None ; let max_size = self . layout . size . x / 2 ; if total_size_with_sep > max_size { const MIN_LEN_TAGS : usize = 4 ; // The text is too long, we need to truncate some tags. // We try to truncate all tags below a certain length. { let mut sizes_sorted = widths . clone ( ) ; sizes_sorted . sort_unstable_by ( | a , b | a . cmp ( b ) . reverse ( ) ) ; let mut truncate_cnt = 0 ; let mut truncate_to = sizes_sorted [ 0 ] ; let mut total_width = total_size_with_sep ; let truncate_to = loop { truncate_cnt += 1 ; while sizes_sorted . get ( truncate_cnt ) . copied ( ) == Some ( truncate_to ) { truncate_cnt += 1 ; } let new_truncate_to = sizes_sorted . get ( truncate_cnt ) . copied ( ) . unwrap_or ( 0 ) ; let new_total_width = total_width - ( truncate_to - new_truncate_to ) * truncate_cnt ; if new_total_width <= max_size { break new_truncate_to + ( max_size - new_total_width ) / truncate_cnt ; } else { truncate_to = new_truncate_to ; total_width = new_total_width ; } } ; truncate = Some ( std :: cmp :: max ( truncate_to , MIN_LEN_TAGS ) ) ; } } self . layout . truncate_tags = truncate ; }
Do layout and truncate tags when they are too long
Do layout and truncate tags when they are too long
&mut self
_size
Vec2
&mut self
_size
Vec2