Implemented text

src/escpos/errors.rs

@@ -4,4 +4,5 @@ pub enum EscPosError {
     InvalidQueueIndex,
     InvalidBitmapMode,
     InvalidBarcodeLength(String),
+    InvalidTextSize,
 }

src/escpos/job.rs

@@ -32,15 +32,15 @@ pub enum ImageOrientation {
 pub enum JustifyOrientation {
     Left = 0,
     Center = 1,
-    Rigth = 2,
+    Right = 2,
 }
 
-#[repr(u8)]
 pub enum TextEffect {
-    DoubleHeight = 16,
+    Bold,
-    Bold = 8,
+    DoubleHeight,
-    DoubleWidth = 32,
+    DoubleWidth,
-    Justify(JustifyOrientation) = b'a',
+    InvertColor,
+    Justify(JustifyOrientation),
 }
 
 pub struct Job {
@@ -53,6 +53,13 @@ fn is_numeric(s: &[u8]) -> bool {
     s.iter().all(|&b| b.is_ascii_digit())
 }
 
+impl Copy for JustifyOrientation {}
+impl Clone for JustifyOrientation {
+    fn clone(&self) -> Self {
+        *self
+    }
+}
+
 impl Job {
     pub fn new(max_width: u16) -> Self {
         Job {
@@ -66,7 +73,30 @@ impl Job {
         let amount = amount.unwrap_or(1);
         self.content.extend_from_slice(&[0x1B, b'd', amount])
     }
-    pub fn write_text(&mut self, text: String) {}
+    pub fn write_text(
+        &mut self,
+        text: &String,
+        text_effect: &[TextEffect],
+    ) -> Result<(), EscPosError> {
+        let buf = &mut self.content;
+        buf.extend_from_slice(&[0x1B, b'@']);
+
+        for i in text_effect {
+            match i {
+                TextEffect::Bold => buf.extend_from_slice(&[0x1B, b'E', 1]),
+                TextEffect::DoubleWidth => buf.extend_from_slice(&[0x1B, b'E', 1]),
+                TextEffect::DoubleHeight => buf.extend_from_slice(&[0x1B, b'E', 1]),
+                TextEffect::InvertColor => buf.extend_from_slice(&[0x1D, 0x42, 1]),
+                TextEffect::Justify(orientation) => {
+                    buf.extend_from_slice(&[0x1B, b'a', orientation.clone() as u8])
+                }
+            }
+        }
+
+        buf.extend_from_slice(text.as_bytes());
+        Ok(())
+    }
+
     pub fn write_bitmap(
         &mut self,
         img: &DynamicImage,

src/main.rs

@@ -5,23 +5,23 @@ use image::{ImageError, ImageReader};
 use std::{env, process};
 
 use crate::escpos::{
-    job::{BARTextPosition, BARType},
+    job::{BARTextPosition, BARType, TextEffect},
     printer::Printer,
 };
 
 fn main() {
-    let args: Vec<String> = env::args().collect();
+    // let args: Vec<String> = env::args().collect();
-
+    //
-    let len = args.len();
+    // let len = args.len();
-    if len < 2 || len > 2 {
+    // if len < 2 || len > 2 {
-        println!("Please provide a path to the image.");
+    //     println!("Please provide a path to the image.");
-        process::exit(1);
+    //     process::exit(1);
-    }
+    // }
-
+    //
-    let img = ImageReader::open(&args[1])
+    // let img = ImageReader::open(&args[1])
-        .map_err(|err| ImageError::IoError(err))
+    //     .map_err(|err| ImageError::IoError(err))
-        .and_then(|v| v.decode())
+    //     .and_then(|v| v.decode())
-        .unwrap();
+    //     .unwrap();
 
     let mut printer = Printer::new(384);
     let job = printer.new_job().unwrap();
@@ -34,7 +34,20 @@ fn main() {
     //     Some(BARType::CODE128),
     // )
     // .unwrap();
-    job.write_bitmap(&img, None, None).unwrap();
+    // job.write_bitmap(&img, None, None).unwrap();
+    job.write_text(
+        &"Kanker homo! Ik hoop dat je dood gaat \n Sorry grapje, hier is een mooie QR code die je mag scannen.".to_string(),
+        &[
+            TextEffect::Justify(escpos::job::JustifyOrientation::Center),
+            TextEffect::Size(5, 5)
+            // TextEffect::Bold,
+            // TextEffect::InvertColor,
+
+        ]
+    ).unwrap();
+    job.write_qr("https://pornhub.com".to_string(), None, None)
+        .unwrap();
+
     job.write_feed(Some(2));
     job.ready = true;