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use crate::prelude::*;
use crate::{TextBuffer, TextIter, TextTag};
use glib::object::{Cast, IsA};
use glib::signal::{connect_raw, SignalHandlerId};
use glib::translate::*;
use libc::{c_char, c_int};
use std::boxed::Box as Box_;
use std::mem::transmute;
use std::{slice, str};
pub trait TextBufferExtManual: 'static {
#[doc(alias = "gtk_text_buffer_create_tag")]
fn create_tag(
&self,
tag_name: Option<&str>,
properties: &[(&str, &dyn ToValue)],
) -> Option<TextTag>;
#[doc(alias = "gtk_text_buffer_insert_with_tags")]
fn insert_with_tags(&self, iter: &mut TextIter, text: &str, tags: &[&TextTag]);
#[doc(alias = "gtk_text_buffer_insert_with_tags_by_name")]
fn insert_with_tags_by_name(&self, iter: &mut TextIter, text: &str, tags_names: &[&str]);
fn connect_insert_text<F: Fn(&Self, &mut TextIter, &str) + 'static>(
&self,
f: F,
) -> SignalHandlerId;
}
impl<O: IsA<TextBuffer>> TextBufferExtManual for O {
fn create_tag(
&self,
tag_name: Option<&str>,
properties: &[(&str, &dyn ToValue)],
) -> Option<TextTag> {
let tag = TextTag::new(tag_name);
tag.set_properties(properties);
if self.as_ref().tag_table().add(&tag) {
Some(tag)
} else {
None
}
}
fn insert_with_tags(&self, iter: &mut TextIter, text: &str, tags: &[&TextTag]) {
let start_offset = iter.offset();
self.as_ref().insert(iter, text);
let start_iter = self.as_ref().iter_at_offset(start_offset);
tags.iter().for_each(|tag| {
self.as_ref().apply_tag(&(*tag).clone(), &start_iter, iter);
});
}
fn insert_with_tags_by_name(&self, iter: &mut TextIter, text: &str, tags_names: &[&str]) {
let start_offset = iter.offset();
self.as_ref().insert(iter, text);
let start_iter = self.as_ref().iter_at_offset(start_offset);
let tag_table = self.as_ref().tag_table();
tags_names.iter().for_each(|tag_name| {
if let Some(tag) = tag_table.lookup(tag_name) {
self.as_ref().apply_tag(&tag, &start_iter, iter);
} else {
glib::g_warning!("TextBuffer", "No tag with name {}!", tag_name);
}
});
}
fn connect_insert_text<F: Fn(&Self, &mut TextIter, &str) + 'static>(
&self,
f: F,
) -> SignalHandlerId {
unsafe {
unsafe extern "C" fn insert_text_trampoline<
T,
F: Fn(&T, &mut TextIter, &str) + 'static,
>(
this: *mut ffi::GtkTextBuffer,
location: *mut ffi::GtkTextIter,
text: *mut c_char,
len: c_int,
f: glib::ffi::gpointer,
) where
T: IsA<TextBuffer>,
{
let mut location_copy = from_glib_none(location);
let f: &F = &*(f as *const F);
let text = if len <= 0 {
&[]
} else {
slice::from_raw_parts(text as *const u8, len as usize)
};
f(
TextBuffer::from_glib_borrow(this).unsafe_cast_ref(),
&mut location_copy,
str::from_utf8(text).unwrap(),
)
}
let f: Box_<F> = Box_::new(f);
connect_raw(
self.to_glib_none().0 as *mut _,
b"insert-text\0".as_ptr() as *mut _,
Some(transmute(insert_text_trampoline::<Self, F> as usize)),
Box_::into_raw(f),
)
}
}
}