papyri 0.1.0

Data visualization based on Cairo
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

/*Copyright (c) 2022 Diego da Silva Lima. All rights reserved.

This work is licensed under the terms of the MIT license.  
For a copy, see <https://opensource.org/licenses/MIT>.*/

use gdk4::RGBA;
// use libxml::tree::node::Node;
// use super::utils;
use std::error::Error;
use super::text;
use std::collections::HashMap;
use std::str::FromStr;
use crate::render::text::FontData;
use crate::model::DesignError;

#[derive(Clone, Debug)]
pub struct PlotDesign {
    pub bg_color : RGBA,
    pub grid_color : RGBA,
    pub grid_width : i32,
    pub font : text::FontData
}

impl Default for PlotDesign {

    fn default() -> Self {
        Self {
            bg_color : RGBA::from_str("#ffffff").unwrap(),
            grid_color : RGBA::from_str("#d3d7cf").unwrap(),
            grid_width : 1,
            font : FontData::new_from_string("Monospace Regular 12")
        }
    }

}

impl PlotDesign {

    pub fn new_from_json(rep : crate::model::Design) -> Result<Self, Box<dyn Error>> {
        rep.validate()?;
        let bg_color = rep.bgcolor.parse().or(Err(DesignError::InvalidBackgroundColor))?;
        let grid_color = rep.fgcolor.parse().or(Err(DesignError::InvalidGridColor))?;
        let design = Self {
            bg_color,
            grid_color,
            grid_width : rep.width,
            font : text::FontData::new_from_string(&rep.font)
        };
        Ok(design)
    }

    /*pub fn new( /*node : &Node*/ ) -> Result<PlotDesign, Box<dyn Error>> {
        // let design_props = utils::children_as_hash(node,"property");
        // println!("Design = {:?}", design_props);
        let standard_color = RGBA{red:0.0,green:0.0,blue:0.0,alpha:0.0};
        let bg_color = match design_props["bg_color"].parse() {
            Ok(c) => c,
            Err(_) => standard_color
         };
        let grid_color = match design_props["grid_color"].parse() {
            Ok(c) => c,
            Err(_) => standard_color
        };
        let grid_width : i32 = design_props["grid_width"].parse()?;
        let font = text::FontData::new_from_string(&design_props["font"]);
        let design = PlotDesign{
            bg_color,
            grid_color,
            grid_width,
            font
        };
        Ok(design)
    }*/

    pub fn description(&self) -> HashMap<String, String> {
        let mut desc = HashMap::new();
        desc.insert("bg_color".into(), self.bg_color.to_string());
        desc.insert("grid_color".into(), self.grid_color.to_string());
        desc.insert("grid_width".into(), self.grid_width.to_string());
        desc.insert("font".into(), self.font.description());
        desc
    }

    // Font pattern is assumed to be like
    // Monospace Regular 12
    /*fn update_colors(&self, bg : String, grid : String) {

    }*/
}