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https://github.com/FliegendeWurst/cursive.git
synced 2024-11-10 03:10:41 +00:00
Add enabled state to Checkbox
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77a623674a
commit
02b6b6601f
@ -2,6 +2,7 @@ use With;
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use Cursive;
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use Printer;
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use vec::Vec2;
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use theme::ColorStyle;
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use view::View;
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use event::{Event, EventResult, Key};
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use direction::Direction;
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@ -12,6 +13,7 @@ use std::rc::Rc;
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/// Checkable box.
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pub struct Checkbox {
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checked: bool,
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enabled: bool,
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on_change: Option<Rc<Fn(&mut Cursive, bool)>>,
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}
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@ -23,19 +25,51 @@ impl Checkbox {
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pub fn new() -> Self {
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Checkbox {
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checked: false,
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enabled: true,
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on_change: None,
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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 the state changes.
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pub fn set_on_change<F: 'static + Fn(&mut Cursive, bool)>(&mut self, on_change: F) {
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pub fn set_on_change<F: 'static + Fn(&mut Cursive, bool)>(&mut self,
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on_change: F) {
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self.on_change = Some(Rc::new(on_change));
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}
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/// Sets a callback to be used when the state changes.
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///
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/// Chainable variant.
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pub fn on_change<F: 'static + Fn(&mut Cursive, bool)>(self, on_change: F) -> Self {
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pub fn on_change<F: 'static + Fn(&mut Cursive, bool)>(self, on_change: F)
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-> Self {
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self.with(|s| s.set_on_change(on_change))
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}
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@ -54,7 +88,9 @@ impl Checkbox {
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///
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/// Chainable variant.
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pub fn checked(self) -> Self {
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self.with(|s| {s.check();})
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self.with(|s| {
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s.check();
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})
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}
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/// Returns `true` if the checkbox is checked.
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@ -71,7 +107,9 @@ impl Checkbox {
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///
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/// Chainable variant.
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pub fn unchecked(self) -> Self {
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self.with(|s| { s.uncheck(); })
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self.with(|s| {
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s.uncheck();
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})
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}
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/// Sets the checkbox state.
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@ -84,6 +122,13 @@ impl Checkbox {
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EventResult::Consumed(None)
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}
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}
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fn draw_internal(&self, printer: &Printer) {
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printer.print((0, 0), "[ ]");
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if self.checked {
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printer.print((1, 0), "X");
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}
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}
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}
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impl View for Checkbox {
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@ -92,16 +137,17 @@ impl View for Checkbox {
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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
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}
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fn draw(&self, printer: &Printer) {
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printer.with_selection(printer.focused, |printer| {
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printer.print((0, 0), "[ ]");
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if self.checked {
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printer.print((1, 0), "X");
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}
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});
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if self.enabled {
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printer.with_selection(printer.focused,
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|printer| self.draw_internal(printer));
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} else {
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printer.with_color(ColorStyle::Secondary,
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|printer| self.draw_internal(printer));
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}
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}
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