bland 0.2.0

Pure-Rust library for paper-ready, monochrome, hatch-patterned technical plots in the visual tradition of 1960s-80s engineering reports.
Documentation 
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//! Engineering-drawing title block.
//!
//! A title block is the nested rectangle grid you find in the bottom-
//! right corner of a drafting sheet — project, title, author, date,
//! scale, sheet number, revision. Attach one with
//! [`Figure::title_block`](crate::Figure::title_block).

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum TitleBlockPosition {
    BottomRight,
    BottomLeft,
}

#[derive(Debug, Clone)]
pub struct TitleBlock {
    pub project: Option<String>,
    pub title: Option<String>,
    pub drawn_by: Option<String>,
    pub checked_by: Option<String>,
    pub date: Option<String>,
    pub scale: Option<String>,
    pub sheet: Option<String>,
    pub rev: Option<String>,
    pub drawing_no: Option<String>,
    pub position: TitleBlockPosition,
    pub width: f64,
    pub height: f64,
}

impl Default for TitleBlock {
    fn default() -> Self {
        Self {
            project: None,
            title: None,
            drawn_by: None,
            checked_by: None,
            date: None,
            scale: None,
            sheet: None,
            rev: None,
            drawing_no: None,
            position: TitleBlockPosition::BottomRight,
            width: 380.0,
            height: 90.0,
        }
    }
}

impl TitleBlock {
    pub fn new() -> Self {
        Self::default()
    }

    pub fn project(mut self, s: impl Into<String>) -> Self {
        self.project = Some(s.into());
        self
    }
    pub fn title(mut self, s: impl Into<String>) -> Self {
        self.title = Some(s.into());
        self
    }
    pub fn drawn_by(mut self, s: impl Into<String>) -> Self {
        self.drawn_by = Some(s.into());
        self
    }
    pub fn checked_by(mut self, s: impl Into<String>) -> Self {
        self.checked_by = Some(s.into());
        self
    }
    pub fn date(mut self, s: impl Into<String>) -> Self {
        self.date = Some(s.into());
        self
    }
    pub fn scale(mut self, s: impl Into<String>) -> Self {
        self.scale = Some(s.into());
        self
    }
    pub fn sheet(mut self, s: impl Into<String>) -> Self {
        self.sheet = Some(s.into());
        self
    }
    pub fn rev(mut self, s: impl Into<String>) -> Self {
        self.rev = Some(s.into());
        self
    }
    pub fn drawing_no(mut self, s: impl Into<String>) -> Self {
        self.drawing_no = Some(s.into());
        self
    }
    pub fn position(mut self, p: TitleBlockPosition) -> Self {
        self.position = p;
        self
    }
    pub fn size(mut self, width: f64, height: f64) -> Self {
        self.width = width;
        self.height = height;
        self
    }
}