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
/*!
    High level events definitions
*/
/*
    Copyright (C) 2016  Gabriel Dubé

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

use std::time::Duration;

use ui::Ui;
use defs::MouseButton;

/**
The function signature for the event callback

Arguments:  
  • 1: A reference to the Ui  
  • 2: A reference to the ID of the control  
  • 3: A reference to the event type that was called  
  • 4: A reference to the arguments passed with the controls  
*/
pub type EventCallback<ID> = Fn(&Ui<ID>, &ID, &Event, &EventArgs) -> ();

/**
    Events name definition
*/
#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
pub enum Event {

    // NWG special events
    Destroyed,

    // System events
    KeyDown,
    KeyUp,
    Char,
    Closed,
    MouseUp,
    MouseDown,
    Moved,
    Resized,
    Paint,
    Raw,

    // Default control specific events
    Click,
    DoubleClick,
    MenuOpen,
    MenuClose,
    SelectionChanged,
    ValueChanged,
    LimitReached,
    Focus,
    Tick,
    Triggered,
}

/**
    Events arguments definition. If an event do not have arguments, EventArgs::None is passed.
*/
pub enum EventArgs {
    Key(u32),
    Char(char),
    MouseClick{btn: MouseButton, pos: (i32, i32)},
    Focus(bool),
    Tick(Duration),
    Position(i32, i32),
    Size(u32, u32),
    Raw(u32, usize, usize), // MSG, WPARAM, LPARAM
    None
}