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

use orbclient::Renderer;
use std::cell::{Cell, RefCell};
use std::cmp::{min, max};
use std::sync::Arc;

use cell::{CloneCell, CheckSet};
use draw::draw_box;
use event::Event;
use point::Point;
use rect::Rect;
use thickness::Thickness;
use theme::{Theme, Selector};
use traits::{Click, Place, Style};
use widgets::{Widget, VerticalPlacement, HorizontalPlacement};

pub struct ProgressBar {
    pub rect: Cell<Rect>,
    children: RefCell<Vec<Arc<dyn Widget>>>,
    local_position: Cell<Point>,
    vertical_placement: Cell<VerticalPlacement>,
    horizontal_placement: Cell<HorizontalPlacement>,
    margin: Cell<Thickness>,
    pub selector: CloneCell<Selector>,
    pub value: Cell<i32>,
    pub minimum: i32,
    pub maximum: i32,
    click_callback: RefCell<Option<Arc<dyn Fn(&ProgressBar, Point)>>>,
    pressed: Cell<bool>,
}

impl ProgressBar {
    pub fn new() -> Arc<Self> {
        Arc::new(ProgressBar {
            rect: Cell::new(Rect::default()),
            local_position: Cell::new(Point::new(0, 0)),
            vertical_placement: Cell::new(VerticalPlacement::Absolute),
            horizontal_placement: Cell::new(HorizontalPlacement::Absolute),
            margin: Cell::new(Thickness::default()),
            children: RefCell::new(vec![]),
            selector: CloneCell::new(Selector::new(Some("progress-bar"))),
            value: Cell::new(0),
            minimum: 0,
            maximum: 100,
            click_callback: RefCell::new(None),
            pressed: Cell::new(false),
        })
    }

    pub fn value(&self, value: i32) -> &Self {
        self.value.set(value);
        self
    }
}

impl Click for ProgressBar {
    fn emit_click(&self, point: Point) {
        if let Some(ref click_callback) = *self.click_callback.borrow() {
            click_callback(self, point);
        }
    }

    fn on_click<T: Fn(&Self, Point) + 'static>(&self, func: T) -> &Self {
        *self.click_callback.borrow_mut() = Some(Arc::new(func));
        self
    }
}

impl Place for ProgressBar {}

impl Style for ProgressBar {
    fn selector(&self) -> &CloneCell<Selector> {
        &self.selector
    }
}

impl Widget for ProgressBar {
    fn name(&self) -> &str {
        "ProgressBar"
    }

    fn rect(&self) -> &Cell<Rect> {
        &self.rect
    }

    fn vertical_placement(&self) -> &Cell<VerticalPlacement> {
        &self.vertical_placement
    }

    fn horizontal_placement(&self) -> &Cell<HorizontalPlacement> {
        &self.horizontal_placement
    }

    fn margin(&self) -> &Cell<Thickness> {
        &self.margin
    }

    fn local_position(&self) -> &Cell<Point> {
        &self.local_position
    }

    fn draw(&self, renderer: &mut dyn Renderer, _focused: bool, theme: &Theme) {
        let rect = self.rect.get();
        let progress_rect = Rect{
                                width: (rect.width as i32 *
                                        max(0, min(self.maximum, self.value.get() - self.minimum)) /
                                        max(1, self.maximum - self.minimum)) as u32,
                                ..self.rect.get()
                            };

        let selector = &self.selector.get();

        draw_box(renderer, rect, theme, selector);

        let b_r = theme.get("border-radius", selector).map(|v| v.uint().unwrap()).unwrap_or(1);
        let b_t = theme.get("border-width", selector).map(|v| v.uint().unwrap()).unwrap_or(0);


        if progress_rect.width >=  b_t + b_r * 2 {
            //TODO: set this selector as the child of self.selector
            draw_box(renderer, progress_rect, theme, &Selector::new(Some("progress")));
        }
    }

    fn event(&self, event: Event, focused: bool, redraw: &mut bool, caught: &mut bool) -> bool {
        match event {
            Event::Mouse { point, left_button, .. } => {
                let mut click = false;

                let rect = self.rect.get();
                if rect.contains(point) {
                    if left_button {
                        if self.pressed.check_set(true) {
                            *redraw = true;
                        }
                    } else {
                        if self.pressed.check_set(false) {
                            click = true;
                            *redraw = true;
                        }
                    }

                    *caught = true;
                } else {
                    if !left_button {
                        if self.pressed.check_set(false) {
                            *redraw = true;
                        }
                    }
                }

                if click {
                    let click_point: Point = point - rect.point();
                    self.emit_click(click_point);
                }
            }
            _ => (),
        }

        focused
    }

    fn children(&self) -> &RefCell<Vec<Arc<dyn Widget>>> {
        &self.children
    }
}