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81 lines
1.8 KiB
Rust
81 lines
1.8 KiB
Rust
#[macro_use]
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pub mod macros;
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pub mod clipboard;
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pub mod document;
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pub mod editor;
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pub mod env;
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pub mod graphics;
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pub mod gutter;
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pub mod handlers {
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pub mod dap;
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pub mod lsp;
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}
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pub mod base64;
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pub mod icons;
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pub mod info;
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pub mod input;
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pub mod keyboard;
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pub mod theme;
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pub mod tree;
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pub mod view;
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use std::num::NonZeroUsize;
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// uses NonZeroUsize so Option<DocumentId> use a byte rather than two
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#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Debug)]
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pub struct DocumentId(NonZeroUsize);
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impl Default for DocumentId {
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fn default() -> DocumentId {
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// Safety: 1 is non-zero
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DocumentId(unsafe { NonZeroUsize::new_unchecked(1) })
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}
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}
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impl std::fmt::Display for DocumentId {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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f.write_fmt(format_args!("{}", self.0))
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}
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}
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slotmap::new_key_type! {
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pub struct ViewId;
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}
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pub enum Align {
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Top,
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Center,
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Bottom,
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}
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pub fn align_view(doc: &Document, view: &mut View, align: Align) {
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let doc_text = doc.text().slice(..);
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let cursor = doc.selection(view.id).primary().cursor(doc_text);
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let viewport = view.inner_area(doc);
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let last_line_height = viewport.height.saturating_sub(1);
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let relative = match align {
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Align::Center => last_line_height / 2,
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Align::Top => 0,
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Align::Bottom => last_line_height,
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};
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let text_fmt = doc.text_format(viewport.width, None);
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let annotations = view.text_annotations(doc, None);
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(view.offset.anchor, view.offset.vertical_offset) = char_idx_at_visual_offset(
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doc_text,
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cursor,
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-(relative as isize),
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0,
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&text_fmt,
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&annotations,
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);
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}
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pub use document::Document;
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pub use editor::Editor;
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use helix_core::char_idx_at_visual_offset;
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pub use theme::Theme;
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pub use view::View;
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