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134 lines
3.7 KiB
134 lines
3.7 KiB
use crate::{
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strutil::TString,
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translations::TR,
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ui::{
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component::{Component, Event, EventCtx},
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geometry::Rect,
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shape::Renderer,
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},
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};
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use super::super::{ButtonLayout, ChoiceFactory, ChoiceItem, ChoicePage};
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use heapless::Vec;
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// So that there is only one implementation, and not multiple generic ones
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// as would be via `const N: usize` generics.
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const MAX_LENGTH: usize = 5;
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struct ChoiceFactorySimple {
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choices: Vec<TString<'static>, MAX_LENGTH>,
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carousel: bool,
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}
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impl ChoiceFactorySimple {
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fn new(choices: Vec<TString<'static>, MAX_LENGTH>, carousel: bool) -> Self {
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Self { choices, carousel }
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}
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fn get_string(&self, choice_index: usize) -> TString<'static> {
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self.choices[choice_index]
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}
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}
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impl ChoiceFactory for ChoiceFactorySimple {
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type Action = usize;
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type Item = ChoiceItem;
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fn count(&self) -> usize {
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self.choices.len()
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}
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fn get(&self, choice_index: usize) -> (Self::Item, Self::Action) {
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let text = &self.choices[choice_index];
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let mut choice_item = text.map(|t| {
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ChoiceItem::new(
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t,
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ButtonLayout::arrow_armed_arrow(TR::buttons__select.into()),
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)
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});
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// Disabling prev/next buttons for the first/last choice when not in carousel.
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// (could be done to the same button if there is only one)
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if !self.carousel {
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if choice_index == 0 {
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choice_item.set_left_btn(None);
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}
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if choice_index == self.count() - 1 {
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choice_item.set_right_btn(None);
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}
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}
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(choice_item, choice_index)
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}
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}
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/// Simple wrapper around `ChoicePage` that allows for
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/// inputting a list of values and receiving the chosen one.
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pub struct SimpleChoice {
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choice_page: ChoicePage<ChoiceFactorySimple, usize>,
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pub return_index: bool,
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}
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impl SimpleChoice {
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pub fn new(str_choices: Vec<TString<'static>, MAX_LENGTH>, carousel: bool) -> Self {
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let choices = ChoiceFactorySimple::new(str_choices, carousel);
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Self {
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choice_page: ChoicePage::new(choices).with_carousel(carousel),
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return_index: false,
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}
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}
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/// Show only the currently selected item, nothing left/right.
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pub fn with_only_one_item(mut self) -> Self {
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self.choice_page = self.choice_page.with_only_one_item(true);
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self
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}
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/// Show choices even when they do not fit entirely.
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pub fn with_show_incomplete(mut self) -> Self {
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self.choice_page = self.choice_page.with_incomplete(true);
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self
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}
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/// Returning chosen page index instead of the string result.
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pub fn with_return_index(mut self) -> Self {
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self.return_index = true;
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self
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}
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/// Translating the resulting index into actual string choice.
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pub fn result_by_index(&self, index: usize) -> TString<'static> {
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self.choice_page.choice_factory().get_string(index)
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}
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}
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impl Component for SimpleChoice {
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type Msg = usize;
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fn place(&mut self, bounds: Rect) -> Rect {
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self.choice_page.place(bounds)
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}
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fn event(&mut self, ctx: &mut EventCtx, event: Event) -> Option<Self::Msg> {
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self.choice_page.event(ctx, event).map(|evt| evt.0)
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}
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fn paint(&mut self) {
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self.choice_page.paint();
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}
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fn render<'s>(&'s self, target: &mut impl Renderer<'s>) {
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self.choice_page.render(target);
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}
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}
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// DEBUG-ONLY SECTION BELOW
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#[cfg(feature = "ui_debug")]
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impl crate::trace::Trace for SimpleChoice {
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fn trace(&self, t: &mut dyn crate::trace::Tracer) {
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t.component("SimpleChoice");
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t.child("choice_page", &self.choice_page);
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}
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}
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