satty 0.22.0

Modern Screenshot Annotation.
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
177
178
179
180

use anyhow::Result;
use femtovg::{FontId, Path};
use relm4::{Sender, gtk::gdk::Key};

use crate::{
    configuration::APP_CONFIG,
    math::Vec2D,
    sketch_board::{MouseButton, MouseEventMsg, MouseEventType, SketchBoardInput},
    style::Style,
};

use super::{
    Drawable, DrawableClone, Tool, ToolUpdateResult, Tools,
    drag_box::{DragBox, draw_center_marker},
};

#[derive(Clone, Copy, Debug)]
pub struct Rectangle {
    origin: Vec2D,
    top_left: Vec2D,
    size: Option<Vec2D>,
    style: Style,
    centered: bool,
    finishing: bool,
}

impl Drawable for Rectangle {
    fn draw(
        &self,
        canvas: &mut femtovg::Canvas<femtovg::renderer::OpenGl>,
        _font: FontId,
        _bounds: (Vec2D, Vec2D),
    ) -> Result<()> {
        let size = match self.size {
            Some(s) => s,
            None => return Ok(()), // early exit if none
        };

        canvas.save();
        let mut path = Path::new();
        path.rounded_rect(
            self.top_left.x,
            self.top_left.y,
            size.x,
            size.y,
            APP_CONFIG.read().corner_roundness(),
        );

        if !self.finishing && self.centered {
            draw_center_marker(canvas, self.origin);
        }

        if self.style.fill {
            canvas.fill_path(&path, &self.style.into());
        } else {
            canvas.stroke_path(&path, &self.style.into());
        }
        canvas.restore();

        Ok(())
    }
}

impl Rectangle {
    fn calculate_shape(&mut self, event: &MouseEventMsg) {
        let drag_box = DragBox::from_origin_delta(self.origin, event.pos, event.modifier);
        self.centered = drag_box.centered;
        self.top_left = drag_box.top_left;
        self.size = Some(drag_box.size);
    }
}

#[derive(Default)]
pub struct RectangleTool {
    rectangle: Option<Rectangle>,
    style: Style,
    input_enabled: bool,
    sender: Option<Sender<SketchBoardInput>>,
}

impl Tool for RectangleTool {
    fn input_enabled(&self) -> bool {
        self.input_enabled
    }

    fn set_input_enabled(&mut self, value: bool) {
        self.input_enabled = value;
    }

    fn active(&self) -> bool {
        self.rectangle.is_some()
    }

    fn handle_mouse_event(&mut self, event: MouseEventMsg) -> ToolUpdateResult {
        match event.type_ {
            MouseEventType::BeginDrag => {
                if event.button == MouseButton::Middle {
                    return ToolUpdateResult::Unmodified;
                }
                // start new
                self.rectangle = Some(Rectangle {
                    origin: event.pos,
                    top_left: event.pos,
                    size: None,
                    style: self.style,
                    centered: false,
                    finishing: false,
                });

                ToolUpdateResult::Redraw
            }
            MouseEventType::EndDrag => {
                if event.button == MouseButton::Middle {
                    return ToolUpdateResult::Unmodified;
                }

                if let Some(rectangle) = &mut self.rectangle {
                    rectangle.finishing = true;
                    if event.pos == Vec2D::zero() {
                        self.rectangle = None;

                        ToolUpdateResult::Redraw
                    } else {
                        rectangle.calculate_shape(&event);
                        let result = rectangle.clone_box();
                        self.rectangle = None;
                        ToolUpdateResult::Commit(result)
                    }
                } else {
                    ToolUpdateResult::Unmodified
                }
            }
            MouseEventType::UpdateDrag => {
                if event.button == MouseButton::Middle {
                    return ToolUpdateResult::Unmodified;
                }

                if let Some(rectangle) = &mut self.rectangle {
                    if event.pos == Vec2D::zero() {
                        return ToolUpdateResult::Unmodified;
                    }
                    rectangle.calculate_shape(&event);
                    ToolUpdateResult::Redraw
                } else {
                    ToolUpdateResult::Unmodified
                }
            }
            _ => ToolUpdateResult::Unmodified,
        }
    }

    fn handle_key_event(&mut self, event: crate::sketch_board::KeyEventMsg) -> ToolUpdateResult {
        if event.key == Key::Escape && self.rectangle.is_some() {
            self.rectangle = None;
            ToolUpdateResult::Redraw
        } else {
            ToolUpdateResult::Unmodified
        }
    }

    fn handle_style_event(&mut self, style: Style) -> ToolUpdateResult {
        self.style = style;
        ToolUpdateResult::Unmodified
    }

    fn get_drawable(&self) -> Option<&dyn Drawable> {
        match &self.rectangle {
            Some(d) => Some(d),
            None => None,
        }
    }

    fn get_tool_type(&self) -> super::Tools {
        Tools::Rectangle
    }

    fn set_sender(&mut self, sender: Sender<SketchBoardInput>) {
        self.sender = Some(sender);
    }
}