In my first post on this site, I talked about creating a keyboard. I think it's time to rework the text a bit to make it easier to read. I made one more file named buttons.rs it contains buttons, entry and label implementations.
use gtk; use gtk::{Button, Entry, Label}; pub fn create_button(label: &'static str) -> Button { let margin = 2; Button::builder() .label(label) .margin_start(margin) .margin_top(margin) .margin_end(margin) .margin_bottom(margin) .build() } pub fn create_entry() -> Entry { let margin = 2; Entry::builder() .margin_start(margin) .margin_top(margin) .margin_end(margin) .margin_bottom(margin) .build() } pub fn create_label(label: Option<&str>) -> Label { let margin = 2; let text: &str = label.unwrap_or("default string"); Label::builder() .label(text) .margin_start(margin) .margin_top(margin) .margin_end(margin) .margin_bottom(margin) .build() } We can’t add Option to .lebel() we have to convert Option into str label.unwrap_or("default string").
Add buttons.rs to main.rs file
use gtk::prelude::*;
mod gui; mod buttons; Add functions as crates to gui.rs
use crate::buttons::create_label; use crate::buttons::create_entry; use crate::buttons::create_button; And declare buttons, labels and whatever you want following this example
let button_1 = create_button("Button 1"); let counter_label = create_label(Some("0.0")); let label_time = create_label(None); 
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