theframework 0.9.3

A cross platform application UI framework.
Documentation 
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
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176

use crate::prelude::*;

pub struct TheText {
    id: TheId,

    limiter: TheSizeLimiter,

    dim: TheDim,
    text: String,
    text_size: f32,
    text_color: RGBA,

    fixed_size_text: String,

    is_dirty: bool,
}

impl TheWidget for TheText {
    fn new(id: TheId) -> Self
    where
        Self: Sized,
    {
        let mut limiter = TheSizeLimiter::new();
        limiter.set_max_height(21);

        Self {
            id,
            limiter,

            dim: TheDim::zero(),
            text: "".to_string(),
            text_size: 13.0,
            text_color: WHITE,

            fixed_size_text: String::default(),

            is_dirty: false,
        }
    }

    fn id(&self) -> &TheId {
        &self.id
    }

    fn dim(&self) -> &TheDim {
        &self.dim
    }

    fn dim_mut(&mut self) -> &mut TheDim {
        &mut self.dim
    }

    fn set_dim(&mut self, dim: TheDim, _ctx: &mut TheContext) {
        if self.dim != dim {
            self.dim = dim;
            self.is_dirty = true;
        }
    }

    fn limiter(&self) -> &TheSizeLimiter {
        &self.limiter
    }

    fn limiter_mut(&mut self) -> &mut TheSizeLimiter {
        &mut self.limiter
    }

    fn needs_redraw(&mut self) -> bool {
        self.is_dirty
    }

    fn set_value(&mut self, value: TheValue) {
        if let TheValue::Text(value) = value {
            self.set_text(value);
        }
    }

    fn calculate_size(&mut self, ctx: &mut TheContext) {
        if self.fixed_size_text.is_empty() {
            if !self.text.is_empty() {
                let size = ctx.draw.get_text_size(
                    &self.text,
                    &TheFontSettings {
                        size: self.text_size,
                        ..Default::default()
                    },
                );
                self.limiter_mut()
                    .set_max_size(Vec2::new(size.0 as i32 + 1, size.1 as i32 + 1));
            } else {
                self.limiter_mut().set_max_size(Vec2::new(20, 20));
            }
        } else {
            let size = ctx.draw.get_text_size(
                &self.fixed_size_text,
                &TheFontSettings {
                    size: self.text_size,
                    ..Default::default()
                },
            );
            self.limiter_mut()
                .set_max_size(Vec2::new(size.0 as i32 + 1, size.1 as i32 + 1));
        }
    }

    fn draw(
        &mut self,
        buffer: &mut TheRGBABuffer,
        _style: &mut Box<dyn TheStyle>,
        ctx: &mut TheContext,
    ) {
        if !self.dim().is_valid() {
            return;
        }

        let stride = buffer.stride();

        let mut shrinker = TheDimShrinker::zero();
        shrinker.shrink_by(0, 1, 0, 0);

        ctx.draw.text_rect_blend(
            buffer.pixels_mut(),
            &self.dim.to_buffer_shrunk_utuple(&shrinker),
            stride,
            &self.text,
            TheFontSettings {
                size: self.text_size,
                ..Default::default()
            },
            &self.text_color,
            TheHorizontalAlign::Left,
            TheVerticalAlign::Center,
        );

        self.is_dirty = false;
    }

    fn as_text(&mut self) -> Option<&mut dyn TheTextTrait> {
        Some(self)
    }

    fn as_any(&mut self) -> &mut dyn std::any::Any {
        self
    }
}

/// TheText specific functions.
pub trait TheTextTrait {
    /// Set the text to display.
    fn set_text(&mut self, text: String);
    /// Set the text size.
    fn set_text_size(&mut self, text_size: f32);
    /// Sets the text color.
    fn set_text_color(&mut self, color: RGBA);
    /// Set fixed size text.
    fn set_fixed_size_text(&mut self, fixed_size_text: String);
}

impl TheTextTrait for TheText {
    fn set_text(&mut self, text: String) {
        self.text = text;
        self.is_dirty = true;
    }
    fn set_text_size(&mut self, text_size: f32) {
        self.text_size = text_size;
        self.is_dirty = true;
    }
    fn set_text_color(&mut self, color: RGBA) {
        self.text_color = color;
        self.is_dirty = true;
    }
    fn set_fixed_size_text(&mut self, fixed_size_text: String) {
        self.fixed_size_text = fixed_size_text;
        self.is_dirty = true;
    }
}