75 lines
2.4 KiB
Rust
75 lines
2.4 KiB
Rust
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/// Define the paragraph related structs and enums
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use serde::{Deserialize, Serialize};
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use crate::tokens::ControlWord;
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#[derive(Debug, Default, Clone, Copy, PartialEq, Hash, Deserialize, Serialize)]
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pub struct Paragraph {
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pub alignment: Alignment,
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pub spacing: Spacing,
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pub indent: Indentation,
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pub tab_width: i32,
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}
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/// Alignement of a paragraph (left, right, center, justify)
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#[derive(Debug, Default, Clone, Copy, PartialEq, Hash, Deserialize, Serialize)]
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pub enum Alignment {
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#[default]
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LeftAligned, // \ql
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RightAligned, // \qr
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Center, // \qc
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Justify, // \qj
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}
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impl From<&ControlWord<'_>> for Alignment {
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fn from(cw: &ControlWord) -> Self {
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return match cw {
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ControlWord::LeftAligned => Alignment::LeftAligned,
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ControlWord::RightAligned => Alignment::RightAligned,
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ControlWord::Center => Alignment::Center,
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ControlWord::Justify => Alignment::Justify,
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_ /* default */ => Alignment::LeftAligned,
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};
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}
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}
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/// The vertical margin before / after a block of text
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#[derive(Debug, Default, Clone, Copy, PartialEq, Hash, Deserialize, Serialize)]
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pub struct Spacing {
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pub before: i32,
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pub after: i32,
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pub between_line: SpaceBetweenLine,
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pub line_multiplier: i32,
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}
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#[derive(Default, Debug, Clone, Copy, PartialEq, Hash, Deserialize, Serialize)]
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pub enum SpaceBetweenLine {
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Value(i32),
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#[default]
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Auto,
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Invalid,
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}
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/// Space between lines.
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// If this control word is missing or if \sl1000 is used, the line spacing is automatically determined by the tallest character in the line;
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// if N is a positive value, this size is used only if it is taller than the tallest character (otherwise, the tallest character is used);
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// if N is a negative value, the absolute value of N is used, even if it is shorter than the tallest character.
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impl From<i32> for SpaceBetweenLine {
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fn from(value: i32) -> Self {
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return match value {
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1000 => SpaceBetweenLine::Auto,
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val if val < 0 => SpaceBetweenLine::Value(val.abs()),
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val => SpaceBetweenLine::Value(val),
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};
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}
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}
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// This struct can not be an enum because left-indent and right-ident can both be defined at the same time
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#[derive(Default, Debug, Clone, Copy, PartialEq, Hash, Deserialize, Serialize)]
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pub struct Indentation {
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pub left: i32,
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pub right: i32,
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pub first_line: i32,
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}
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