268 lines
8.7 KiB
Rust
268 lines
8.7 KiB
Rust
use {
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crate::{
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core::{InnerViewPort, Observer, ObserverBroadcast, OuterViewPort, View, ViewPort},
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projection::ProjectionHelper,
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sequence::SequenceView,
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terminal::{make_label, TerminalStyle, TerminalView},
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},
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cgmath::Point2,
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std::sync::Arc,
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std::sync::RwLock,
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};
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//<<<<>>>><<>><><<>><<<*>>><<>><><<>><<<<>>>>
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pub struct ListDecorator {
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opening_port: OuterViewPort<dyn TerminalView>,
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closing_port: OuterViewPort<dyn TerminalView>,
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delim_port: OuterViewPort<dyn TerminalView>,
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items: Arc<dyn SequenceView<Item = OuterViewPort<dyn TerminalView>>>,
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list_style: TerminalStyle,
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item_style: TerminalStyle,
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cast: Arc<RwLock<ObserverBroadcast<dyn SequenceView<Item = OuterViewPort<dyn TerminalView>>>>>,
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proj_helper: ProjectionHelper<Self>,
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}
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impl View for ListDecorator {
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type Msg = usize;
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}
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impl SequenceView for ListDecorator {
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type Item = OuterViewPort<dyn TerminalView>;
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fn len(&self) -> Option<usize> {
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let l = self.items.len()?;
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Some(if l == 0 { 2 } else { 2 * l + 2 })
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}
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fn get(&self, idx: &usize) -> Option<Self::Item> {
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let item_idx = idx / 2;
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let list_style = self.list_style.clone();
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let item_style = self.item_style.clone();
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let l = self.items.len().unwrap_or(0);
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Some(if *idx == 0 {
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self.opening_port
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.clone()
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.map_item(move |_, atom| atom.add_style_back(list_style))
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} else if (l == 0 && *idx == 1) || *idx == 2 * l {
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self.closing_port
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.clone()
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.map_item(move |_, atom| atom.add_style_back(list_style))
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} else if idx % 2 == 0 {
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self.delim_port
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.clone()
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.map_item(move |_, atom| atom.add_style_back(list_style))
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} else {
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self.items
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.get(&item_idx)?
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.map_item(move |_, atom| atom.add_style_back(item_style))
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})
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}
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}
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impl ListDecorator {
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pub fn new(
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opening: &str,
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closing: &str,
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delim: &str,
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level: usize,
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items_port: OuterViewPort<dyn SequenceView<Item = OuterViewPort<dyn TerminalView>>>,
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out_port: InnerViewPort<dyn SequenceView<Item = OuterViewPort<dyn TerminalView>>>,
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) -> Arc<RwLock<Self>> {
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let mut proj_helper = ProjectionHelper::new(out_port.0.update_hooks.clone());
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let li = Arc::new(RwLock::new(ListDecorator {
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opening_port: make_label(opening),
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closing_port: make_label(closing),
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delim_port: make_label(delim),
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items: proj_helper.new_sequence_arg(items_port, |s: &mut Self, item_idx| {
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s.cast.notify(&(*item_idx * 2 + 1));
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s.cast.notify(&(*item_idx * 2 + 2));
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}),
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list_style: TerminalStyle::fg_color(match level {
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0 => (200, 120, 10),
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1 => (120, 200, 10),
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_ => (255, 255, 255),
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}),
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item_style: TerminalStyle::fg_color(match level {
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_ => (255, 255, 255),
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}),
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cast: out_port.get_broadcast(),
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proj_helper,
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}));
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li.write().unwrap().proj_helper.set_proj(&li);
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out_port.set_view(Some(li.clone()));
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li
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}
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}
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pub trait ListDecoration {
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fn decorate(
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&self,
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opening: &str,
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closing: &str,
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delim: &str,
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level: usize,
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) -> OuterViewPort<dyn SequenceView<Item = OuterViewPort<dyn TerminalView>>>;
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}
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impl ListDecoration for OuterViewPort<dyn SequenceView<Item = OuterViewPort<dyn TerminalView>>> {
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fn decorate(
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&self,
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opening: &str,
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closing: &str,
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delim: &str,
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level: usize,
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) -> OuterViewPort<dyn SequenceView<Item = OuterViewPort<dyn TerminalView>>> {
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let port = ViewPort::new();
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ListDecorator::new(opening, closing, delim, level, self.clone(), port.inner());
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port.into_outer()
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}
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}
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//<<<<>>>><<>><><<>><<<*>>><<>><><<>><<<<>>>>
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use crate::{grid::GridView, index::IndexView};
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pub struct VerticalSexprDecorator {
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opening_port: OuterViewPort<dyn TerminalView>,
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closing_port: OuterViewPort<dyn TerminalView>,
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items: Arc<dyn SequenceView<Item = OuterViewPort<dyn TerminalView>>>,
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list_style: TerminalStyle,
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item_style: TerminalStyle,
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cast: Arc<RwLock<ObserverBroadcast<dyn GridView<Item = OuterViewPort<dyn TerminalView>>>>>,
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proj_helper: ProjectionHelper<Self>,
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}
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impl View for VerticalSexprDecorator {
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type Msg = Point2<i16>;
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}
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impl IndexView<Point2<i16>> for VerticalSexprDecorator {
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type Item = OuterViewPort<dyn TerminalView>;
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fn area(&self) -> Option<Vec<Point2<i16>>> {
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let mut area = (0..self.items.len()?)
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.map(|i| Point2::new(1 as i16, i as i16))
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.collect::<Vec<_>>();
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area.push(Point2::new(0, 0));
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area.push(Point2::new(2, self.items.len()? as i16 - 1));
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Some(area)
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}
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fn get(&self, pt: &Point2<i16>) -> Option<Self::Item> {
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let item_idx = pt.y as usize;
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let list_style = self.list_style.clone();
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let item_style = self.item_style.clone();
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let l = self.items.len().unwrap_or(0);
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match pt.x {
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0 => {
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if pt.y == 0 {
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Some(
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self.opening_port
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.clone()
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.map_item(move |_, atom| atom.add_style_back(list_style)),
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)
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} else {
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None
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}
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}
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1 => {
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if item_idx < l {
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Some(
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self.items
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.get(&item_idx)?
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.map_item(move |_, atom| atom.add_style_back(item_style)),
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)
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} else {
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None
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}
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}
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2 => {
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if (l == 0 && pt.y == 0) || (item_idx + 1 == l) {
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Some(
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self.closing_port
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.clone()
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.map_item(move |_, atom| atom.add_style_back(list_style)),
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)
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} else {
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None
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}
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}
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_ => None,
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}
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}
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}
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impl VerticalSexprDecorator {
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pub fn new(
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opening: &str,
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closing: &str,
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level: usize,
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items_port: OuterViewPort<dyn SequenceView<Item = OuterViewPort<dyn TerminalView>>>,
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out_port: InnerViewPort<dyn GridView<Item = OuterViewPort<dyn TerminalView>>>,
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) -> Arc<RwLock<Self>> {
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let mut proj_helper = ProjectionHelper::new(out_port.0.update_hooks.clone());
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let li = Arc::new(RwLock::new(VerticalSexprDecorator {
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opening_port: make_label(opening),
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closing_port: make_label(closing),
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items: proj_helper.new_sequence_arg(items_port, |s: &mut Self, item_idx| {
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s.cast.notify(&Point2::new(1, *item_idx as i16));
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s.cast.notify(&Point2::new(2, *item_idx as i16 - 1));
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s.cast.notify(&Point2::new(2, *item_idx as i16));
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}),
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list_style: TerminalStyle::fg_color(match level {
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0 => (200, 120, 10),
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1 => (120, 200, 10),
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_ => (255, 255, 255),
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}),
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item_style: TerminalStyle::fg_color(match level {
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_ => (255, 255, 255),
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}),
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cast: out_port.get_broadcast(),
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proj_helper,
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}));
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li.write().unwrap().proj_helper.set_proj(&li);
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out_port.set_view(Some(li.clone()));
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li
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}
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}
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pub trait SExprView {
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fn horizontal_sexpr_view(&self, level: usize) -> OuterViewPort<dyn TerminalView>;
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fn vertical_bar_view(&self, level: usize) -> OuterViewPort<dyn TerminalView>;
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fn vertical_sexpr_view(&self, level: usize) -> OuterViewPort<dyn TerminalView>;
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}
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impl SExprView for OuterViewPort<dyn SequenceView<Item = OuterViewPort<dyn TerminalView>>> {
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fn horizontal_sexpr_view(&self, level: usize) -> OuterViewPort<dyn TerminalView> {
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let port = ViewPort::new();
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ListDecorator::new("(", ")", " ", level, self.clone(), port.inner());
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port.into_outer().to_grid_horizontal().flatten()
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}
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fn vertical_bar_view(&self, level: usize) -> OuterViewPort<dyn TerminalView> {
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let port = ViewPort::new();
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ListDecorator::new("Λ", "V", "|", level, self.clone(), port.inner());
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port.into_outer().to_grid_vertical().flatten()
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}
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fn vertical_sexpr_view(&self, level: usize) -> OuterViewPort<dyn TerminalView> {
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let port = ViewPort::new();
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VerticalSexprDecorator::new("(", ")", level, self.clone(), port.inner());
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port.into_outer().flatten()
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}
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}
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