|
@@ -3,8 +3,11 @@ This example is a simple iOS-style calculator. This particular example can run a
|
|
This calculator version uses React-style state management. All state is held as individual use_states.
|
|
This calculator version uses React-style state management. All state is held as individual use_states.
|
|
*/
|
|
*/
|
|
|
|
|
|
|
|
+use std::sync::Arc;
|
|
|
|
+
|
|
use dioxus::events::*;
|
|
use dioxus::events::*;
|
|
use dioxus::prelude::*;
|
|
use dioxus::prelude::*;
|
|
|
|
+use separator::Separatable;
|
|
|
|
|
|
fn main() {
|
|
fn main() {
|
|
dioxus::desktop::launch(APP, |cfg| cfg);
|
|
dioxus::desktop::launch(APP, |cfg| cfg);
|
|
@@ -15,85 +18,67 @@ const APP: FC<()> = |cx, _| {
|
|
let operator = use_state(cx, || None as Option<&'static str>);
|
|
let operator = use_state(cx, || None as Option<&'static str>);
|
|
let display_value = use_state(cx, || String::from(""));
|
|
let display_value = use_state(cx, || String::from(""));
|
|
|
|
|
|
- let clear_display = display_value == "0";
|
|
|
|
- let clear_text = if clear_display { "C" } else { "AC" };
|
|
|
|
-
|
|
|
|
- let input_digit = move |num: u8| display_value.modify().push_str(num.to_string().as_str());
|
|
|
|
-
|
|
|
|
- let input_dot = move || display_value.modify().push_str(".");
|
|
|
|
-
|
|
|
|
- let perform_operation = move || {
|
|
|
|
- if let Some(op) = operator.as_ref() {
|
|
|
|
- let rhs = display_value.parse::<f64>().unwrap();
|
|
|
|
- let new_val = match *op {
|
|
|
|
- "+" => *cur_val + rhs,
|
|
|
|
- "-" => *cur_val - rhs,
|
|
|
|
- "*" => *cur_val * rhs,
|
|
|
|
- "/" => *cur_val / rhs,
|
|
|
|
- _ => unreachable!(),
|
|
|
|
- };
|
|
|
|
- cur_val.set(new_val);
|
|
|
|
- display_value.set(new_val.to_string());
|
|
|
|
- operator.set(None);
|
|
|
|
- }
|
|
|
|
- };
|
|
|
|
-
|
|
|
|
- let toggle_sign = move |_| {
|
|
|
|
- if display_value.starts_with("-") {
|
|
|
|
- display_value.set(display_value.trim_start_matches("-").to_string())
|
|
|
|
- } else {
|
|
|
|
- display_value.set(format!("-{}", *display_value))
|
|
|
|
- }
|
|
|
|
- };
|
|
|
|
-
|
|
|
|
let toggle_percent = move |_| todo!();
|
|
let toggle_percent = move |_| todo!();
|
|
|
|
+ let input_digit = move |num: u8| display_value.modify().push_str(num.to_string().as_str());
|
|
|
|
|
|
- let clear_key = move |_| {
|
|
|
|
- display_value.set("0".to_string());
|
|
|
|
- if !clear_display {
|
|
|
|
- operator.set(None);
|
|
|
|
- cur_val.set(0.0);
|
|
|
|
- }
|
|
|
|
- };
|
|
|
|
-
|
|
|
|
- let keydownhandler = move |evt: KeyboardEvent| match evt.key_code {
|
|
|
|
- KeyCode::Add => operator.set(Some("+")),
|
|
|
|
- KeyCode::Subtract => operator.set(Some("-")),
|
|
|
|
- KeyCode::Divide => operator.set(Some("/")),
|
|
|
|
- KeyCode::Multiply => operator.set(Some("*")),
|
|
|
|
- KeyCode::Num0 => input_digit(0),
|
|
|
|
- KeyCode::Num1 => input_digit(1),
|
|
|
|
- KeyCode::Num2 => input_digit(2),
|
|
|
|
- KeyCode::Num3 => input_digit(3),
|
|
|
|
- KeyCode::Num4 => input_digit(4),
|
|
|
|
- KeyCode::Num5 => input_digit(5),
|
|
|
|
- KeyCode::Num6 => input_digit(6),
|
|
|
|
- KeyCode::Num7 => input_digit(7),
|
|
|
|
- KeyCode::Num8 => input_digit(8),
|
|
|
|
- KeyCode::Num9 => input_digit(9),
|
|
|
|
- KeyCode::Backspace => {
|
|
|
|
- if !display_value.as_str().eq("0") {
|
|
|
|
- display_value.modify().pop();
|
|
|
|
|
|
+ rsx!(cx, div {
|
|
|
|
+ class: "calculator",
|
|
|
|
+ onkeydown: move |evt| match evt.key_code {
|
|
|
|
+ KeyCode::Add => operator.set(Some("+")),
|
|
|
|
+ KeyCode::Subtract => operator.set(Some("-")),
|
|
|
|
+ KeyCode::Divide => operator.set(Some("/")),
|
|
|
|
+ KeyCode::Multiply => operator.set(Some("*")),
|
|
|
|
+ KeyCode::Num0 => input_digit(0),
|
|
|
|
+ KeyCode::Num1 => input_digit(1),
|
|
|
|
+ KeyCode::Num2 => input_digit(2),
|
|
|
|
+ KeyCode::Num3 => input_digit(3),
|
|
|
|
+ KeyCode::Num4 => input_digit(4),
|
|
|
|
+ KeyCode::Num5 => input_digit(5),
|
|
|
|
+ KeyCode::Num6 => input_digit(6),
|
|
|
|
+ KeyCode::Num7 => input_digit(7),
|
|
|
|
+ KeyCode::Num8 => input_digit(8),
|
|
|
|
+ KeyCode::Num9 => input_digit(9),
|
|
|
|
+ KeyCode::Backspace => {
|
|
|
|
+ if !display_value.as_str().eq("0") {
|
|
|
|
+ display_value.modify().pop();
|
|
|
|
+ }
|
|
}
|
|
}
|
|
|
|
+ _ => {}
|
|
}
|
|
}
|
|
- _ => {}
|
|
|
|
- };
|
|
|
|
-
|
|
|
|
- use separator::Separatable;
|
|
|
|
- let formatted_display = cur_val.separated_string();
|
|
|
|
-
|
|
|
|
- rsx!(cx, div {
|
|
|
|
- class: "calculator", onkeydown: {keydownhandler}
|
|
|
|
- div { class: "calculator-display", "{formatted_display}" }
|
|
|
|
|
|
+ div { class: "calculator-display", {[format_args!("{}", cur_val.separated_string())]} }
|
|
div { class: "input-keys"
|
|
div { class: "input-keys"
|
|
div { class: "function-keys"
|
|
div { class: "function-keys"
|
|
- CalculatorKey { name: "key-clear", onclick: {clear_key} "{clear_text}" }
|
|
|
|
- CalculatorKey { name: "key-sign", onclick: {toggle_sign}, "±"}
|
|
|
|
- CalculatorKey { name: "key-percent", onclick: {toggle_percent} "%"}
|
|
|
|
|
|
+ CalculatorKey {
|
|
|
|
+ {[if display_value == "0" { "C" } else { "AC" }]}
|
|
|
|
+ name: "key-clear",
|
|
|
|
+ onclick: move |_| {
|
|
|
|
+ display_value.set("0".to_string());
|
|
|
|
+ if display_value != "0" {
|
|
|
|
+ operator.set(None);
|
|
|
|
+ cur_val.set(0.0);
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ CalculatorKey {
|
|
|
|
+ "±"
|
|
|
|
+ name: "key-sign",
|
|
|
|
+ onclick: move |_| {
|
|
|
|
+ if display_value.starts_with("-") {
|
|
|
|
+ display_value.set(display_value.trim_start_matches("-").to_string())
|
|
|
|
+ } else {
|
|
|
|
+ display_value.set(format!("-{}", *display_value))
|
|
|
|
+ }
|
|
|
|
+ },
|
|
|
|
+ }
|
|
|
|
+ CalculatorKey {
|
|
|
|
+ "%"
|
|
|
|
+ onclick: {toggle_percent}
|
|
|
|
+ name: "key-percent",
|
|
|
|
+ }
|
|
}
|
|
}
|
|
div { class: "digit-keys"
|
|
div { class: "digit-keys"
|
|
CalculatorKey { name: "key-0", onclick: move |_| input_digit(0), "0" }
|
|
CalculatorKey { name: "key-0", onclick: move |_| input_digit(0), "0" }
|
|
- CalculatorKey { name: "key-dot", onclick: move |_| input_dot(), "●" }
|
|
|
|
|
|
+ CalculatorKey { name: "key-dot", onclick: move |_| display_value.modify().push_str("."), "●" }
|
|
|
|
|
|
{(1..9).map(|k| rsx!{
|
|
{(1..9).map(|k| rsx!{
|
|
CalculatorKey { key: "{k}", name: "key-{k}", onclick: move |_| input_digit(k), "{k}" }
|
|
CalculatorKey { key: "{k}", name: "key-{k}", onclick: move |_| input_digit(k), "{k}" }
|
|
@@ -104,7 +89,25 @@ const APP: FC<()> = |cx, _| {
|
|
CalculatorKey { name: "key-multiply", onclick: move |_| operator.set(Some("*")) "×" }
|
|
CalculatorKey { name: "key-multiply", onclick: move |_| operator.set(Some("*")) "×" }
|
|
CalculatorKey { name: "key-subtract", onclick: move |_| operator.set(Some("-")) "−" }
|
|
CalculatorKey { name: "key-subtract", onclick: move |_| operator.set(Some("-")) "−" }
|
|
CalculatorKey { name: "key-add", onclick: move |_| operator.set(Some("+")) "+" }
|
|
CalculatorKey { name: "key-add", onclick: move |_| operator.set(Some("+")) "+" }
|
|
- CalculatorKey { name: "key-equals", onclick: move |_| perform_operation() "=" }
|
|
|
|
|
|
+ CalculatorKey {
|
|
|
|
+ "="
|
|
|
|
+ name: "key-equals",
|
|
|
|
+ onclick: move |_| {
|
|
|
|
+ if let Some(op) = operator.as_ref() {
|
|
|
|
+ let rhs = display_value.parse::<f64>().unwrap();
|
|
|
|
+ let new_val = match *op {
|
|
|
|
+ "+" => *cur_val + rhs,
|
|
|
|
+ "-" => *cur_val - rhs,
|
|
|
|
+ "*" => *cur_val * rhs,
|
|
|
|
+ "/" => *cur_val / rhs,
|
|
|
|
+ _ => unreachable!(),
|
|
|
|
+ };
|
|
|
|
+ cur_val.set(new_val);
|
|
|
|
+ display_value.set(new_val.to_string());
|
|
|
|
+ operator.set(None);
|
|
|
|
+ }
|
|
|
|
+ },
|
|
|
|
+ }
|
|
}
|
|
}
|
|
}
|
|
}
|
|
})
|
|
})
|
|
@@ -113,7 +116,7 @@ const APP: FC<()> = |cx, _| {
|
|
#[derive(Props)]
|
|
#[derive(Props)]
|
|
struct CalculatorKeyProps<'a> {
|
|
struct CalculatorKeyProps<'a> {
|
|
name: &'static str,
|
|
name: &'static str,
|
|
- onclick: &'a dyn Fn(MouseEvent),
|
|
|
|
|
|
+ onclick: &'a dyn Fn(Arc<MouseEvent>),
|
|
children: Element,
|
|
children: Element,
|
|
}
|
|
}
|
|
|
|
|