nze_tiled/
image_layer.rs

1use super::{TiledError, HandleXml, helper::*, LayerData, Properties};
2
3use quick_xml::{events::{BytesStart, attributes::Attribute}, Reader};
4
5use std::path::PathBuf;
6
7pub struct ImageLayer {
8    pub image_path : PathBuf,
9    pub width: u32,
10    pub height: u32,
11    pub repeat_x: bool,
12    pub repeat_y: bool,
13    pub info: LayerData,
14    pub props: Properties,
15}
16
17impl ImageLayer {
18    fn blank() -> ImageLayer {
19        ImageLayer {
20            image_path: PathBuf::new(),
21            width: 0,
22            height: 0,
23            repeat_x: false,
24            repeat_y: false,
25            info: LayerData::new(),
26            props: Properties::blank(),
27        }
28    }
29    pub(crate) fn new(attribs : Vec<Attribute>, reader : &mut Reader<&[u8]>, layer_index: u32) -> Result<ImageLayer, TiledError> {
30        let mut img_layer = Self::blank();
31        img_layer.parse_base_attribs(attribs)?;
32        parse_xml(&mut img_layer, reader)?;
33        img_layer.info.layer_position = layer_index;
34        Ok(img_layer)
35    }
36
37    fn parse_base_attribs(&mut self, attribs : Vec<Attribute>) -> Result<(), TiledError> {
38        for a in attribs {
39            if let Some(()) = self.info.handle_attrib(&a)? {
40                match a.key.as_ref() {
41                    b"repeatx" => self.repeat_x = get_value::<i32>(&a.value)? == 1,
42                    b"repeaty" => self.repeat_y = get_value::<i32>(&a.value)? == 1,
43                    _ => println!("warning: unrecognized atrribute {:?}", a.key),
44                }
45            }
46        }
47        Ok(())
48    }
49
50    fn parse_image_attributes(&mut self, attribs : Vec<Attribute>) -> Result<(), TiledError> {
51        for a in attribs {
52            match a.key.as_ref() {
53                b"source" => self.image_path.push(get_string(&a.value)?),
54                b"width" => self.width = get_value(&a.value)?,
55                b"height" => self.height = get_value(&a.value)?,
56                _ => println!("warning: unrecognized atrribute {:?}", a.key),
57            }
58        }
59        Ok(())
60   }
61    
62}
63
64impl HandleXml for ImageLayer {
65    fn empty(&mut self, e : &BytesStart) -> Result<(), TiledError> {
66        match e.name().as_ref() {
67            b"image" => self.parse_image_attributes(collect_attribs(&e)?)?,
68            _ => println!("unrecognized empty tag {:?}", e.name()),
69        }
70        Ok(())
71    }
72    fn start(&mut self, e : &BytesStart, reader: &mut Reader<&[u8]>) -> Result<(), TiledError> {
73        match e.name().as_ref() {
74            b"properties" => parse_xml(&mut self.props, reader)?,
75            _ => println!("unrecognized tag {:?}", e.name()),
76        }
77        Ok(())
78    }
79    fn self_tag() -> &'static str {
80        "imagelayer"
81    }
82}
nze_tiled/image_layer.rs

nze_tiled/
image_layer.rs
