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https://github.com/FliegendeWurst/cursive.git
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Add enabled state to SelectView
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02b6b6601f
commit
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@ -2,11 +2,13 @@ use std::cmp::min;
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use std::rc::Rc;
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use Cursive;
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use With;
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use direction::Direction;
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use view::{IdView, View};
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use align::{Align, HAlign, VAlign};
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use view::scroll::ScrollBase;
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use event::{Event, EventResult, Key};
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use theme::ColorStyle;
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use vec::Vec2;
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use Printer;
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@ -31,6 +33,7 @@ impl<T> Item<T> {
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/// It contains a list of values of type T, with associated labels.
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pub struct SelectView<T = String> {
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items: Vec<Item<T>>,
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enabled: bool,
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focus: usize,
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scrollbase: ScrollBase,
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// This is a custom callback to include a &T
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@ -43,6 +46,7 @@ impl<T: 'static> SelectView<T> {
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pub fn new() -> Self {
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SelectView {
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items: Vec::new(),
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enabled: true,
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focus: 0,
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scrollbase: ScrollBase::new(),
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select_cb: None,
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@ -50,6 +54,35 @@ impl<T: 'static> SelectView<T> {
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}
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}
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/// Disables this view.
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///
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/// A disabled view cannot be selected.
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pub fn disable(&mut self) {
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self.enabled = false;
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}
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/// Disables this view.
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///
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/// Chainable variant.
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pub fn disabled(self) -> Self {
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self.with(Self::disable)
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}
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/// Re-enables this view.
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pub fn enable(&mut self) {
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self.enabled = true;
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}
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/// Enable or disable this view.
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pub fn set_enabled(&mut self, enabled: bool) {
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self.enabled = enabled;
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}
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/// Returns `true` if this view is enabled.
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pub fn is_enabled(&self) -> bool {
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self.enabled
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}
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/// Sets a callback to be used when an item is selected.
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///
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/// (When ENTER is pressed on an item).
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@ -117,6 +150,14 @@ impl<T: 'static> SelectView<T> {
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pub fn with_id(self, label: &str) -> IdView<Self> {
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IdView::new(label, self)
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}
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fn draw_item(&self, printer: &Printer, i: usize) {
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let l = self.items[i].label.width();
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let x = self.align.h.get_offset(l, printer.size.x);
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printer.print_hline((0, 0), x, " ");
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printer.print((x, 0), &self.items[i].label);
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printer.print_hline((x + l, 0), printer.size.x - l - x, " ");
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}
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}
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impl SelectView<String> {
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@ -141,11 +182,12 @@ impl<T: 'static> View for SelectView<T> {
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self.scrollbase.draw(printer, |printer, i| {
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printer.with_selection(i == self.focus, |printer| {
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let l = self.items[i].label.width();
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let x = self.align.h.get_offset(l, printer.size.x);
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printer.print_hline((0, 0), x, " ");
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printer.print((x, 0), &self.items[i].label);
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printer.print_hline((x + l, 0), printer.size.x - l - x, " ");
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if i != self.focus && !self.enabled {
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printer.with_color(ColorStyle::Secondary,
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|printer| self.draw_item(printer, i));
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} else {
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self.draw_item(printer, i);
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}
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});
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});
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}
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@ -217,7 +259,7 @@ impl<T: 'static> View for SelectView<T> {
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}
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fn take_focus(&mut self, _: Direction) -> bool {
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true
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self.enabled && !self.items.is_empty()
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}
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fn layout(&mut self, size: Vec2) {
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