nappgui 0.1.0

Rust bindings to NAppGUI
Documentation 
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use std::ffi::{CStr, CString};

/// String objects contain dynamically reserved UTF-8 character strings.
#[repr(transparent)]
pub struct NappguiString {
    pub(crate) inner: *mut nappgui_sys::String,
}

impl NappguiString {
    /// Create a String from a UTF-8-encoded C string.
    pub fn new(text: &str) -> Self {
        let text = CString::new(text).unwrap();
        let inner = unsafe { nappgui_sys::str_c(text.as_ptr()) };
        Self { inner }
    }

    /// Returns the inner C string in format UTF-8 contained in the String.
    pub fn as_cstr(&self) -> &CStr {
        let cstr = unsafe { nappgui_sys::tc(self.inner) };
        assert!(!cstr.is_null());
        unsafe { CStr::from_ptr(cstr) }
    }

    /// Returns the rust String.
    pub fn to_string(&self) -> String {
        self.as_cstr().to_string_lossy().into_owned()
    }
}

impl Clone for NappguiString {
    fn clone(&self) -> Self {
        let inner = unsafe { nappgui_sys::str_copy(self.inner) };
        Self { inner }
    }
}

impl Drop for NappguiString {
    fn drop(&mut self) {
        unsafe {
            nappgui_sys::str_destroy(&mut self.inner);
        }
    }
}