1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117

// Copyright (c) 2014 by SiegeLord
//
// All rights reserved. Distributed under ZLib. For full terms see the file LICENSE.

#![crate_name = "allegro_dialog"]
#![crate_type = "lib"]

extern crate allegro;
extern crate allegro_dialog_sys;
#[macro_use]
extern crate allegro_util;
extern crate libc;

use allegro::{Core, Display, Flag};
use allegro_dialog_sys::*;

use std::ffi::CString;

flag_type! {
	MessageBoxFlags
	{
		MESSAGEBOX_WARN =      ALLEGRO_MESSAGEBOX_WARN,
		MESSAGEBOX_ERROR =     ALLEGRO_MESSAGEBOX_ERROR,
		MESSAGEBOX_OK_CANCEL = ALLEGRO_MESSAGEBOX_OK_CANCEL,
		MESSAGEBOX_YES_NO =    ALLEGRO_MESSAGEBOX_YES_NO,
		MESSAGEBOX_QUESTION =  ALLEGRO_MESSAGEBOX_QUESTION
	}
}

#[derive(Copy, Clone)]
pub enum MessageBoxResult
{
	NoButton,
	Affirmative,
	Negatory,
}

pub struct DialogAddon
{
	_dummy: (),
}

impl DialogAddon
{
	pub fn init(_: &Core) -> Result<DialogAddon, String>
	{
		use std::sync::Once;
		static mut RUN_ONCE: Once = Once::new();

		let mut res = Err("The dialog addon already initialized.".into());
		unsafe {
			RUN_ONCE.call_once(|| {
				res = if al_init_native_dialog_addon() != 0
				{
					Ok(DialogAddon { _dummy: () })
				}
				else
				{
					Err("Could not initialize the dialog addon.".into())
				}
			})
		}
		res
	}

	pub fn get_version() -> i32
	{
		unsafe { al_get_allegro_native_dialog_version() as i32 }
	}
}

pub fn show_native_message_box(
	display: Option<&Display>, title: &str, heading: &str, text: &str, buttons: Option<&str>,
	flags: MessageBoxFlags,
) -> MessageBoxResult
{
	use libc::c_int;
	use std::ptr;

	let d = display.map_or(ptr::null_mut(), |d| d.get_allegro_display());
	let title = CString::new(title.as_bytes()).unwrap();
	let heading = CString::new(heading.as_bytes()).unwrap();
	let text = CString::new(text.as_bytes()).unwrap();

	let ret = unsafe {
		match buttons
		{
			Some(buttons) =>
			{
				let buttons = CString::new(buttons.as_bytes()).unwrap();
				al_show_native_message_box(
					d,
					title.as_ptr(),
					heading.as_ptr(),
					text.as_ptr(),
					buttons.as_ptr(),
					flags.get() as c_int,
				)
			}
			None => al_show_native_message_box(
				d,
				title.as_ptr(),
				heading.as_ptr(),
				text.as_ptr(),
				ptr::null(),
				flags.get() as c_int,
			),
		}
	};

	match ret
	{
		1 => MessageBoxResult::Affirmative,
		2 => MessageBoxResult::Negatory,
		_ => MessageBoxResult::NoButton,
	}
}