Added a logic that support a img size > 256 as well. also added some code to improve image quality

[dharmik-valani]

Hi! 👋

Firstly, thanks for your work on this project! 🙂

Today I used patch-package to patch [email protected] for the project I'm working on.

Here is the diff that solved my problem:

diff --git a/node_modules/thermal-printer-cordova-plugin/src/android/ThermalPrinterCordovaPlugin.java b/node_modules/thermal-printer-cordova-plugin/src/android/ThermalPrinterCordovaPlugin.java
index b2aa637..9dd25bb 100644
--- a/node_modules/thermal-printer-cordova-plugin/src/android/ThermalPrinterCordovaPlugin.java
+++ b/node_modules/thermal-printer-cordova-plugin/src/android/ThermalPrinterCordovaPlugin.java
@@ -80,9 +80,26 @@ public class ThermalPrinterCordovaPlugin extends CordovaPlugin {
     private void bytesToHexadecimalString(CallbackContext callbackContext, JSONObject data) throws JSONException {
         EscPosPrinter printer = this.getPrinter(callbackContext, data);
         try {
-            byte[] bytes = (byte[]) data.get("bytes");
+             byte[] bytes = (byte[]) data.get("bytes");
             Bitmap decodedByte = BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
-            callbackContext.success(PrinterTextParserImg.bitmapToHexadecimalString(printer, decodedByte));
+            int targetWidth = 383;
+                    //(int) (201 * 5.6 / 2);
+            int targetHeight = (int) ((201 * 5.6 / 2.54) * 2);
+                    //Math.round(decodedByte.getHeight() * targetWidth / decodedByte.getWidth());
+
+            //(int) ((201 * 5.6 / 2.54) * 3)
+            Bitmap resizedBitmap = Bitmap.createScaledBitmap(decodedByte, targetWidth ,targetHeight , true);
+            decodedByte.recycle();
+
+            int width = resizedBitmap.getWidth(), height = resizedBitmap.getHeight();
+            StringBuilder textToPrint = new StringBuilder();
+            for(int y = 0; y < height; y += 256) {
+                Bitmap bitmap = Bitmap.createBitmap(resizedBitmap, 0, y, width, (y + 256 >= height) ? height - y : 256);
+                textToPrint.append("[C]<img>" + PrinterTextParserImg.bitmapToHexadecimalString(printer, bitmap) + "</img>\n");
+            }
+
+            textToPrint.append("[C]Printed!!!\n");
+            callbackContext.success(String.valueOf(textToPrint));
         } catch (Exception e) {
             callbackContext.error(new JSONObject(new HashMap<String, Object>() {{
                 put("error", e.getMessage());

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