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
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
use std::ffi::CString;
use crate::{
draw_2d::{Color, Font},
gui::{control::impl_control, event::EvMouse, impl_layout},
types::{Align, FontStyle},
util::macros::callback,
};
use nappgui_sys::{
label_OnClick, label_align, label_bgcolor, label_bgcolor_over, label_color, label_color_over,
label_create, label_font, label_multiline, label_size_text, label_style_over, label_text,
};
/// The label trait.
pub trait LabelTrait {
/// Returns a raw pointer to the label object.
fn as_ptr(&self) -> *mut nappgui_sys::Label;
callback! {
/// Set the OnClick event handler.
on_click(EvMouse) => label_OnClick;
}
/// Set the text that the label will display.
fn text(&self, text: &str) {
let text = CString::new(text).unwrap();
unsafe {
label_text(self.as_ptr(), text.as_ptr());
}
}
/// Set the text with which the control will be sized.
///
/// # Remarks
/// By default, a Label control will be sized to the exact size of the text it
/// contains. See Dynamic labels.
fn size_text(&self, text: &str) {
let text = CString::new(text).unwrap();
unsafe {
label_size_text(self.as_ptr(), text.as_ptr());
}
}
/// Set the text font.
fn font(&self, font: &Font) {
unsafe {
label_font(self.as_ptr(), font.inner);
}
}
/// Set the font modifiers, when the mouse is over the control.
fn style_over(&self, style: FontStyle) {
unsafe {
label_style_over(self.as_ptr(), style.to_fstyle_t() as _);
}
}
/// Set the label multi-lined.
fn multiline(&self, multiline: bool) {
unsafe { label_multiline(self.as_ptr(), multiline as _) };
}
/// Sets the horizontal alignment of the text with respect to the size of the control.
fn align(&self, align: Align) {
unsafe {
label_align(self.as_ptr(), align as _);
}
}
/// Set the text color.
///
/// # Remarks
/// RGB values may not be fully portable.
fn color(&self, color: Color) {
unsafe {
label_color(self.as_ptr(), color.inner);
}
}
/// Set the color of the text, when the mouse is over the control.
///
/// # Remarks
/// RGB values may not be fully portable.
fn color_over(&self, color: Color) {
unsafe {
label_color_over(self.as_ptr(), color.inner);
}
}
/// Set the background color of the text.
///
/// # Remarks
/// RGB values may not be fully portable.
fn background_color(&self, color: Color) {
unsafe {
label_bgcolor(self.as_ptr(), color.inner);
}
}
/// Set the background color of the text, when the mouse is over the control.
///
/// # Remarks
/// RGB values may not be fully portable.
fn background_color_over(&self, color: Color) {
unsafe {
label_bgcolor_over(self.as_ptr(), color.inner);
}
}
}
/// Label controls are used to insert small blocks of text into windows and forms. They are of uniform format,
/// that is, the font and color attributes will be applied to the entire text. In most cases the content will
/// be limited to a single line, although it is possible to show blocks that extend in several lines. The control
/// size will be adjusted to the text it contains
///
/// # Remark
/// This type is managed by nappgui itself. Rust does not have its ownership. When the window object is dropped, all
/// components assciated with it will be automatically released.
#[repr(transparent)]
#[derive(Clone, Copy, Debug)]
pub struct Label {
pub(crate) inner: *mut nappgui_sys::Label,
}
impl LabelTrait for Label {
/// Returns a raw pointer to the label object.
fn as_ptr(&self) -> *mut nappgui_sys::Label {
self.inner
}
}
impl Default for Label {
fn default() -> Self {
let label = unsafe { label_create() };
Self { inner: label }
}
}
impl Label {
/// Create a text control.
pub fn new(text: &str) -> Label {
let label = Label::default();
label.text(text);
label
}
}
impl_control!(Label, guicontrol_label);
impl_layout!(Label, LabelTrait, layout_label);