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improve handling of function parsing errors

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This commit is contained in:
Simon Gardling 2022-03-29 15:44:03 -04:00
parent e163851626
commit 3c09919627
1 changed files with 26 additions and 14 deletions
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38
src/egui_app.rs
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@ -286,7 +286,9 @@ pub struct MathApp {
/// Stores last error from parsing functions (used to display the same error
/// when side panel is minimized)
last_error: Vec<(usize, String)>,
func_errors: Vec<Option<(usize, String)>>,
exists_error: bool,
/// Contains the list of Areas calculated (the vector of f64) and time it
/// took for the last frame (the Duration). Stored in a Tuple.
@ -316,7 +318,8 @@ impl Default for MathApp {
Self {
functions: vec![DEFAULT_FUNCTION_ENTRY.clone()],
func_strs: vec![String::new()],
last_error: Vec::new(),
func_errors: vec![None],
exists_error: false,
last_info: (vec![None], Duration::ZERO),
help_open: true,
info_open: false,
@ -451,6 +454,7 @@ impl MathApp {
let functions_len = self.functions.len();
let mut remove_i: Option<usize> = None;
self.text_boxes_focused = false;
self.exists_error = false;
for (i, function) in self.functions.iter_mut().enumerate() {
let mut integral_enabled = function.integral;
let mut derivative_enabled = function.derivative;
@ -508,25 +512,25 @@ impl MathApp {
}
});
let func_failed = self.func_errors[i].is_some();
if func_failed {
self.exists_error = true;
}
let proc_func_str = process_func_str(&self.func_strs[i]);
if configs_changed
| integral_toggle | derivative_toggle
| (proc_func_str != function.get_func_str())
| self.last_error.iter().any(|ele| ele.0 == i)
| func_failed
{
integral_enabled.bitxor_assign(integral_toggle);
derivative_enabled.bitxor_assign(derivative_toggle);
if let Some(test_output_value) = test_func(&proc_func_str) {
self.last_error.push((i, test_output_value));
self.func_errors[i] = Some((i, test_output_value));
} else {
function.update(&proc_func_str, integral_enabled, derivative_enabled);
self.last_error = self
.last_error
.iter()
.filter(|(i_ele, _)| i_ele != &i)
.map(|(a, b)| (*a, b.clone()))
.collect();
self.func_errors[i] = None;
}
}
}
@ -535,6 +539,7 @@ impl MathApp {
if let Some(remove_i_unwrap) = remove_i {
self.functions.remove(remove_i_unwrap);
self.func_strs.remove(remove_i_unwrap);
self.func_errors.remove(remove_i_unwrap);
}
// Open Source and Licensing information
@ -591,6 +596,7 @@ impl epi::App for MathApp {
{
self.functions.push(DEFAULT_FUNCTION_ENTRY.clone());
self.func_strs.push(String::new());
self.func_errors.push(None);
}
// Toggles opening the Help window
@ -690,10 +696,16 @@ impl epi::App for MathApp {
// parsing)
CentralPanel::default().show(ctx, |ui| {
// Display an error if it exists
if !self.last_error.is_empty() {
if self.exists_error {
ui.centered_and_justified(|ui| {
self.last_error.iter().for_each(|ele| {
ui.heading(&(&format!("(Function #{}) {}\n", ele.0, ele.1)).to_string());
self.func_errors
.iter()
.filter(|ele| ele.is_some())
.map(|ele| ele.as_ref().unwrap())
.for_each(|ele| {
ui.heading(
&(&format!("(Function #{}) {}\n", ele.0, ele.1)).to_string(),
);
})
});
return;