mirror of
https://github.com/FliegendeWurst/cursive.git
synced 2024-11-10 03:10:41 +00:00
Add mouse support to Slider
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5f3e4b1842
commit
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@ -1,7 +1,7 @@
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use {Cursive, Printer};
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use With;
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use direction::{Direction, Orientation};
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use event::{Callback, Event, EventResult, Key};
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use event::{Callback, Event, EventResult, Key, MouseButton, MouseEvent};
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use std::rc::Rc;
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use theme::ColorStyle;
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use vec::Vec2;
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@ -14,6 +14,7 @@ pub struct SliderView {
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on_enter: Option<Rc<Fn(&mut Cursive, usize)>>,
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value: usize,
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max_value: usize,
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dragging: bool,
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}
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impl SliderView {
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@ -28,6 +29,7 @@ impl SliderView {
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max_value: max_value,
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on_change: None,
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on_enter: None,
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dragging: false,
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}
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}
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@ -103,6 +105,10 @@ impl SliderView {
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EventResult::Ignored
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}
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}
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fn req_size(&self) -> Vec2 {
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self.orientation.make_vec(self.max_value, 1)
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}
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}
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impl View for SliderView {
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@ -127,7 +133,7 @@ impl View for SliderView {
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}
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fn required_size(&mut self, _: Vec2) -> Vec2 {
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self.orientation.make_vec(self.max_value, 1)
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self.req_size()
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}
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fn on_event(&mut self, event: Event) -> EventResult {
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@ -159,6 +165,41 @@ impl View for SliderView {
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cb(s, value);
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})
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}
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Event::Mouse {
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event: MouseEvent::Hold(MouseButton::Left),
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position,
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offset,
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} if self.dragging =>
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{
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let position = position.saturating_sub(offset);
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let position = self.orientation.get(&position);
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let position = ::std::cmp::min(
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position,
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self.max_value.saturating_sub(1),
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);
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self.value = position;
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self.get_change_result()
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}
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Event::Mouse {
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event: MouseEvent::Press(MouseButton::Left),
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position,
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offset,
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} if position.fits_in_rect(offset, self.req_size()) =>
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{
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position.checked_sub(offset).map(|position| {
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self.dragging = true;
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self.value = self.orientation.get(&position);
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});
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self.get_change_result()
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}
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Event::Mouse {
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event: MouseEvent::Release(MouseButton::Left),
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position: _,
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offset: _,
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} => {
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self.dragging = false;
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EventResult::Ignored
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}
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_ => EventResult::Ignored,
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}
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}
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