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|
pub mod function_cache;
pub mod math;
pub mod ui;
use iced::widget::{
button, canvas, container, pane_grid, responsive, text, text_input, Column, PaneGrid, row,
};
use iced::{executor, Renderer};
use iced::{Application, Command, Element, Length, Settings, Theme};
use ui::graph::GraphCanvas;
use ui::pane::{Pane, PaneKind};
use ui::Message;
pub fn main() -> iced::Result {
Graph::run(Settings {
antialiasing: true,
..Settings::default()
})
}
struct Graph {
panes: pane_grid::State<Pane>,
func_vec: Vec<String>,
graph_canvas: GraphCanvas,
}
impl Application for Graph {
type Executor = executor::Default;
type Message = Message;
type Theme = Theme;
type Flags = ();
fn new(_flags: ()) -> (Self, Command<Message>) {
let (mut panes, pane) = pane_grid::State::new(Pane::new(PaneKind::FunctionPane));
panes.split(
pane_grid::Axis::Vertical,
&pane,
Pane::new(PaneKind::GraphPane),
);
(
Graph {
graph_canvas: GraphCanvas::new(),
func_vec: Vec::new(),
panes,
},
Command::none(),
)
}
fn title(&self) -> String {
String::from("MathEval")
}
fn update(&mut self, message: Message) -> Command<Message> {
match message {
Message::InputChanged(content, i) => {
self.func_vec[i] = content;
}
Message::AddFunction => {
self.func_vec.push(String::new());
self.graph_canvas.push("");
}
Message::RemoveFunction(i) => {
self.func_vec.remove(i);
self.graph_canvas.remove(i);
self.graph_canvas.clear()
}
Message::UpdateFunction(i) => {
self.graph_canvas.set(i, &self.func_vec[i]);
self.graph_canvas.clear();
}
Message::RefreshGraphCanvas => {
self.graph_canvas.clear();
}
Message::Resized(pane_grid::ResizeEvent { split, ratio }) => {
self.panes.resize(&split, ratio);
}
}
Command::none()
}
fn view(&self) -> Element<Message> {
let pane_grid = PaneGrid::new(&self.panes, |_id, pane, _| {
pane_grid::Content::new(responsive(move |_size| {
let child: Element<'_, Message, Renderer> = match pane.kind {
PaneKind::GraphPane => canvas(&self.graph_canvas)
.width(Length::Fill)
.height(Length::Fill)
.into(),
PaneKind::FunctionPane => {
let mut flist = Column::new();
for (i, f) in self.func_vec.iter().enumerate() {
flist = flist.push(
row![
text_input("f(x) = x^2", f)
.on_input(move |s| Message::InputChanged(s, i))
.on_submit(Message::UpdateFunction(i)),
button("R").on_press(Message::RemoveFunction(i))
].padding(5)
);
}
flist = flist.push(
button("+")
.width(Length::Fill)
.on_press(Message::AddFunction),
);
flist.into()
}
_ => text("").into(),
};
container(child)
.width(Length::Fill)
.height(Length::Fill)
.into()
}))
})
.width(Length::Fill)
.height(Length::Fill)
.spacing(10)
.on_resize(10, Message::Resized);
container(pane_grid)
.width(Length::Fill)
.height(Length::Fill)
.padding(10)
.into()
}
}
|
