woocraft 0.4.5

GPUI components lib for Woocraft design system.
Documentation 
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use std::fmt::{Debug, Display};

use gpui::ElementId;

/// Represents an index path in a list, which consists of a section index,
/// row index and column index.
///
/// The default values for section, row, and column are all set to 0.
#[derive(Debug, Clone, Copy, Default, PartialEq, Eq)]
pub struct IndexPath {
  /// The section index.
  pub section: usize,
  /// The item index in the section.
  pub row: usize,
  /// The column index.
  pub column: usize,
}

impl From<IndexPath> for ElementId {
  fn from(path: IndexPath) -> Self {
    ElementId::Name(format!("index-path({},{},{})", path.section, path.row, path.column).into())
  }
}

impl Display for IndexPath {
  fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
    write!(
      f,
      "IndexPath(section: {}, row: {}, column: {})",
      self.section, self.row, self.column
    )
  }
}

impl IndexPath {
  /// Create a new index path with the specified row.
  ///
  /// The `section` and `column` are set to 0 by default.
  pub fn new(row: usize) -> Self {
    IndexPath {
      section: 0,
      row,
      ..Default::default()
    }
  }

  /// Set the section for the index path.
  pub fn section(mut self, section: usize) -> Self {
    self.section = section;
    self
  }

  /// Set the row for the index path.
  pub fn row(mut self, row: usize) -> Self {
    self.row = row;
    self
  }

  /// Set the column for the index path.
  pub fn column(mut self, column: usize) -> Self {
    self.column = column;
    self
  }

  /// Check whether two index paths are on the same row in the same section.
  pub fn eq_row(&self, index: IndexPath) -> bool {
    self.section == index.section && self.row == index.row
  }
}

#[cfg(test)]
mod tests {
  use super::*;

  #[test]
  fn test_into_element_id() {
    let index_path = IndexPath::new(2).section(1).column(3);
    let element_id: ElementId = index_path.into();
    assert_eq!(element_id.to_string(), "index-path(1,2,3)");
  }

  #[test]
  fn test_display() {
    assert_eq!(
      format!("{}", IndexPath::new(2).section(1).column(3)),
      "IndexPath(section: 1, row: 2, column: 3)"
    );
  }

  #[test]
  fn test_index_path() {
    let mut index_path = IndexPath::default();
    assert_eq!(index_path.section, 0);
    assert_eq!(index_path.row, 0);
    assert_eq!(index_path.column, 0);

    index_path = index_path.section(1).row(2).column(3);
    assert_eq!(index_path.section, 1);
    assert_eq!(index_path.row, 2);
    assert_eq!(index_path.column, 3);
  }
}