nappgui 0.1.0

Rust bindings to NAppGUI
Documentation 
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use nappgui_sys::{updown_OnClick, updown_create, updown_tooltip};

use crate::util::macros::callback;

/// UpDown are two-part horizontally divided button controls.
pub struct UpDown {
    pub(crate) inner: *mut nappgui_sys::UpDown,
}

impl UpDown {
    pub(crate) fn new(ptr: *mut nappgui_sys::UpDown) -> Self {
        if ptr.is_null() {
            panic!("ptr is null");
        }
        Self { inner: ptr }
    }

    /// Create an updown control.
    pub fn create() -> Self {
        let updown = unsafe { updown_create() };
        Self::new(updown)
    }

    callback! {
        /// Set an event handler for pressing the button.
        pub on_click(UpDown) => updown_OnClick;
    }

    /// Set a tooltip for the button. It is a small explanatory text that will appear when the mouse is over the control.
    pub fn tooltip(&self, tooltip: &str) {
        let tooltip = std::ffi::CString::new(tooltip).unwrap();
        unsafe { updown_tooltip(self.inner, tooltip.as_ptr()) }
    }
}