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use crate::constants::*;
use crate::events::*;
use crate::input::events::*;
use crate::mapping::actions::*;
use crate::mapping::thresholds::*;
use crate::output::actions::*;
use serde::{Deserialize, Serialize};
use std::collections::HashMap;
pub type MouseInput = ThresholdedAxis;
pub type MouseMapInput = Vec<(MouseInput, MouseProfile)>;
#[derive(Copy, Clone, Debug, Serialize, Deserialize)]
pub struct MouseProfile {
pub code: RelAxisCode,
pub slope: f64,
pub offset: f64,
}
pub struct MouseMap {
mouse_mapping: HashMap<MouseInput, MouseProfile>,
axis_thresholds: AllAxisThresholds,
axis_states: HashMap<AbsAxisCode, Option<ThresholdType>>,
}
impl MouseProfile {
pub fn map_state_to_action(&self, state: AxisState) -> Action {
let mouse_state: AxisState = (self.slope * (state as f64) + self.offset) as AxisState;
StateChange::new(None, Some(vec![(self.code, mouse_state)].into())).into()
}
pub fn zeroed(&self) -> Action {
StateChange::new(None, Some(vec![(self.code, 0)].into())).into()
}
}
impl MouseMap {
fn handle_axis(&mut self, ev: &AbsAxisEvent) -> Option<(Action, Option<Action>)> {
let prev_state = self.axis_states.get(&ev.axis()).copied().unwrap_or(None);
match self.axis_thresholds.get_passing_with_state(ev) {
Some((t_axis, t_val)) => match prev_state {
Some(prev_threshold) => {
if prev_threshold == t_axis.threshold() {
let axis_val = ev.state() - t_val;
self.mouse_mapping
.get(&t_axis.into())
.map(|profile| (profile.map_state_to_action(axis_val), None))
} else {
let axis_val = ev.state() - t_val;
let prev_act = self
.mouse_mapping
.get(&(ev.axis(), prev_threshold).into())
.copied()
.map(|p| p.zeroed());
let new_act = self
.mouse_mapping
.get(&t_axis.into())
.map(|profile| profile.map_state_to_action(axis_val));
self.axis_states.insert(ev.axis(), Some(t_axis.threshold()));
match new_act {
Some(new_act) => Some((new_act, prev_act)),
None => prev_act.map(|act| (act, None)),
}
}
}
None => {
let axis_val = ev.state() - t_val;
self.axis_states.insert(ev.axis(), Some(t_axis.threshold()));
self.mouse_mapping
.get(&t_axis.into())
.map(|profile| (profile.map_state_to_action(axis_val), None))
}
},
None => match prev_state {
Some(prev_threshold) => {
self.axis_states.insert(ev.axis(), None);
self.mouse_mapping
.get(&(ev.axis(), prev_threshold).into())
.copied()
.map(|p| (p.zeroed(), None))
}
None => None,
},
}
}
pub fn handle_event(&mut self, ev: &InputEvent) -> Option<(Action, Option<Action>)> {
match ev {
InputEvent::KeyEvent(_) => None,
InputEvent::AbsAxisEvent(aev) => self.handle_axis(aev),
InputEvent::RelAxisEvent(_) => None,
}
}
pub fn init(mouse_map: MouseMapInput, all_a_t: AllAxisThresholds) -> Self {
let mut mouse_mapping = HashMap::<MouseInput, MouseProfile>::with_capacity(mouse_map.len());
let mut axis_states = HashMap::<AbsAxisCode, Option<ThresholdType>>::new();
for (input, output) in mouse_map {
mouse_mapping.insert(input, output);
axis_states.insert(input.code(), None);
}
Self {
mouse_mapping: mouse_mapping,
axis_thresholds: all_a_t,
axis_states: axis_states,
}
}
}