Problems with qr code system character encoding

2026-06-09 00:37:59 -06:00 · 2024-04-03 18:31:29 -06:00
parent f4a8925d9e
commit be81349359
8 changed files with 432 additions and 40 deletions
@@ -0,0 +1,128 @@
+package com.astatin3.scoutingapp2025;
+
+import android.content.Context;
+
+import com.astatin3.scoutingapp2025.Utils.frcMatch;
+import com.astatin3.scoutingapp2025.Utils.frcTeam;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.nio.BufferOverflowException;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.zip.DataFormatException;
+import java.util.zip.Deflater;
+import java.util.zip.Inflater;
+
+public final class fileEditor {
+//    private final static String baseDir = android.os.Environment.getExternalStorageDirectory().getAbsolutePath();
+    public static final byte internalDataVersion = 0x01;
+
+    public static String binaryVisualize(byte[] bytes){
+        String returnStr = "";
+        for(int a=0;a<bytes.length;a++){
+            for(int b=0;b<8;b++){
+                returnStr += String.valueOf((bytes[a] >> b) & 1);
+            }
+            returnStr += " (" + (int)bytes[a] + ")\n";
+        }
+        return returnStr;
+    }
+
+    public static char toChar(int num){
+        if(num < 0 || num > 255){
+            throw new BufferOverflowException();
+        }
+        byte[] bytes = new byte[1];
+        bytes[0] = (byte) num;
+        return new String(bytes, Charset.defaultCharset()).charAt(0);
+    }
+
+    public static int fromChar(char c){
+        byte[] bytes = (String.valueOf(c)).getBytes(Charset.defaultCharset());
+        return Byte.toUnsignedInt(bytes[0]);
+    }
+
+    public static byte[] compress(byte[] input) {
+        Deflater deflater = new Deflater();
+        deflater.setInput(input);
+        deflater.finish();
+
+        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+        byte[] buffer = new byte[1024];
+
+        while (!deflater.finished()) {
+            int compressedSize = deflater.deflate(buffer);
+            outputStream.write(buffer, 0, compressedSize);
+        }
+
+        return outputStream.toByteArray();
+    }
+
+
+    public static byte[] decompress(byte[] input) throws DataFormatException {
+        Inflater inflater = new Inflater();
+        inflater.setInput(input);
+
+        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+        byte[] buffer = new byte[1024];
+
+        while (!inflater.finished()) {
+            int decompressedSize = inflater.inflate(buffer);
+            outputStream.write(buffer, 0, decompressedSize);
+        }
+
+        return outputStream.toByteArray();
+    }
+
+    private static boolean writeToFile(Context context, String filepath, String data) {
+        try {
+            OutputStreamWriter outputStreamWriter = new OutputStreamWriter(context.openFileOutput(filepath, Context.MODE_PRIVATE));
+            outputStreamWriter.write(data);
+            outputStreamWriter.close();
+            return true;
+        }
+        catch (IOException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    private static String intSplit(int[] intArr, String splitStr){
+        String returnStr = "";
+        for(int i=0;i<intArr.length;i++){
+            returnStr += String.valueOf(intArr[i]);
+            if(i != intArr.length-1){
+                returnStr += splitStr;
+            }
+        }
+        return returnStr;
+    }
+
+    public static boolean setMatches(Context context, String key, String matchName, ArrayList<frcMatch> matches){
+        final String filename = (key + "-matches.csv");
+
+        String csvData = "";
+
+        csvData += key + "\n";
+        csvData += matchName + "\n";
+
+        for(int i=0;i<matches.size();i++){
+            final frcMatch match = matches.get(i);
+            csvData += String.valueOf(match.matchIndex)
+                       + "," + intSplit(match.redAlliance, ",")
+                       + "," + intSplit(match.blueAlliance, ",") + "\n";
+        }
+
+        return writeToFile(context, filename, csvData);
+    }
+
+    public static boolean setTeams(Context context, String key, ArrayList<frcTeam> teams){
+        return true;
+    }
+}
+