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.idea
.gradle
*iml
build
/*.properties
out
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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
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"You" (or "Your") shall mean an individual or Legal Entity
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unless required by applicable law (such as deliberate and grossly
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END OF TERMS AND CONDITIONS

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# Bokmakierie
### QR reader powered by a minimized BoofCV library
This project provides a light wrapper around [BoofCV](https://github.com/lessthanoptimal/BoofCV/), using [Proguard](https://github.com/Guardsquare/proguard) to minimize the jar size.

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import proguard.gradle.ProGuardTask
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath 'com.guardsquare:proguard-gradle:7.4.2'
}
}
plugins {
id 'java'
id 'maven-publish'
}
group = 'com.sparrowwallet.bokmakierie'
version = '1.0'
def secrets = new Properties()
file("publish.properties").withInputStream {
stream -> secrets.load(stream)
}
repositories {
mavenCentral()
}
dependencies {
implementation('org.boofcv:boofcv-core:1.1.3') {
exclude group: 'com.google.protobuf'
exclude group: 'commons-io'
exclude group: 'net.lingala.zip4j'
exclude group: 'net.sf.trove4j'
exclude group: 'org.apache.commons'
exclude group: 'org.apiguardian'
exclude group: 'org.deepboof'
exclude group: 'org.ejml', module: 'ejml-cdense'
exclude group: 'org.ejml', module: 'ejml-dsparse'
exclude group: 'org.ejml', module: 'ejml-fdense'
exclude group: 'org.ejml', module: 'ejml-fsparse'
exclude group: 'org.ejml', module: 'ejml-zdense'
exclude group: 'org.boofcv', module: 'boofcv-ip-multiview'
exclude group: 'org.boofcv', module: 'boofcv-learning'
exclude group: 'org.boofcv', module: 'boofcv-reconstruction'
exclude group: 'org.boofcv', module: 'boofcv-sfm'
exclude group: 'org.yaml'
}
testImplementation platform('org.junit:junit-bom:5.9.1')
testImplementation 'org.junit.jupiter:junit-jupiter'
}
jar {
manifest {
attributes("Main-Class": "com.sparrowwallet.bokmakierie.Bokmakierie",
"Automatic-Module-Name": "com.sparrowwallet.bokmakierie")
}
from {
configurations.runtimeClasspath.collect { it.isDirectory() ? it : zipTree(it) }
}
}
test {
useJUnitPlatform()
}
tasks.register('proguard', ProGuardTask) {
injars(layout.buildDirectory.file("libs/bokmakierie-${version}.jar"))
// Automatically handle the Java version of this build.
if(System.getProperty('java.version').startsWith('1.')) {
// Before Java 9, the runtime classes were packaged in a single jar file.
libraryjars "${System.getProperty('java.home')}/lib/rt.jar"
} else {
// As of Java 9, the runtime classes are packaged in modular jmod files.
libraryjars "${System.getProperty('java.home')}/jmods/java.base.jmod", jarfilter: '!**.jar', filter: '!module-info.class'
//libraryjars "${System.getProperty('java.home')}/jmods/....."
}
verbose
keepattributes '*Annotation*'
keepattributes 'Signature'
keepclassmembers allowoptimization: true, 'enum * { \
public static **[] values(); \
public static ** valueOf(java.lang.String); \
}'
keepclasseswithmembers 'public class * { \
public static void main(java.lang.String[]); \
}'
keep 'public class com.sparrowwallet.bokmakierie.Bokmakierie { \
public *; \
}'
keep 'public class com.sparrowwallet.bokmakierie.Result { \
public *; \
}'
keep 'public class boofcv.factory.filter.binary.ConfigThreshold { \
public *; \
}'
keep 'public class boofcv.factory.filter.binary.ThresholdType { \
public *; \
}'
dontwarn
dontoptimize
dontobfuscate
outjars(layout.buildDirectory.file("libs/bokmakierie-minified-${version}.jar"))
}
publishing {
repositories {
maven {
credentials {
username secrets.username
password secrets.password
}
url 'https://mymavenrepo.com/repo/Ym4HjVje06VlvgK5VxFd/'
}
}
publications {
maven(MavenPublication) {
artifactId = 'bokmakierie'
artifact (layout.buildDirectory.file("libs/bokmakierie-minified-${version}.jar"))
}
}
}

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#Thu Feb 29 13:07:51 SAST 2024
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists

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#!/bin/sh
#
# Copyright © 2015-2021 the original authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
##############################################################################
#
# Gradle start up script for POSIX generated by Gradle.
#
# Important for running:
#
# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
# noncompliant, but you have some other compliant shell such as ksh or
# bash, then to run this script, type that shell name before the whole
# command line, like:
#
# ksh Gradle
#
# Busybox and similar reduced shells will NOT work, because this script
# requires all of these POSIX shell features:
# * functions;
# * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
# «${var#prefix}», «${var%suffix}», and «$( cmd )»;
# * compound commands having a testable exit status, especially «case»;
# * various built-in commands including «command», «set», and «ulimit».
#
# Important for patching:
#
# (2) This script targets any POSIX shell, so it avoids extensions provided
# by Bash, Ksh, etc; in particular arrays are avoided.
#
# The "traditional" practice of packing multiple parameters into a
# space-separated string is a well documented source of bugs and security
# problems, so this is (mostly) avoided, by progressively accumulating
# options in "$@", and eventually passing that to Java.
#
# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
# see the in-line comments for details.
#
# There are tweaks for specific operating systems such as AIX, CygWin,
# Darwin, MinGW, and NonStop.
#
# (3) This script is generated from the Groovy template
# https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
# within the Gradle project.
#
# You can find Gradle at https://github.com/gradle/gradle/.
#
##############################################################################
# Attempt to set APP_HOME
# Resolve links: $0 may be a link
app_path=$0
# Need this for daisy-chained symlinks.
while
APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path
[ -h "$app_path" ]
do
ls=$( ls -ld "$app_path" )
link=${ls#*' -> '}
case $link in #(
/*) app_path=$link ;; #(
*) app_path=$APP_HOME$link ;;
esac
done
APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
APP_NAME="Gradle"
APP_BASE_NAME=${0##*/}
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD=maximum
warn () {
echo "$*"
} >&2
die () {
echo
echo "$*"
echo
exit 1
} >&2
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "$( uname )" in #(
CYGWIN* ) cygwin=true ;; #(
Darwin* ) darwin=true ;; #(
MSYS* | MINGW* ) msys=true ;; #(
NONSTOP* ) nonstop=true ;;
esac
CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD=$JAVA_HOME/jre/sh/java
else
JAVACMD=$JAVA_HOME/bin/java
fi
if [ ! -x "$JAVACMD" ] ; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD=java
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
# Increase the maximum file descriptors if we can.
if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
case $MAX_FD in #(
max*)
MAX_FD=$( ulimit -H -n ) ||
warn "Could not query maximum file descriptor limit"
esac
case $MAX_FD in #(
'' | soft) :;; #(
*)
ulimit -n "$MAX_FD" ||
warn "Could not set maximum file descriptor limit to $MAX_FD"
esac
fi
# Collect all arguments for the java command, stacking in reverse order:
# * args from the command line
# * the main class name
# * -classpath
# * -D...appname settings
# * --module-path (only if needed)
# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
# For Cygwin or MSYS, switch paths to Windows format before running java
if "$cygwin" || "$msys" ; then
APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
JAVACMD=$( cygpath --unix "$JAVACMD" )
# Now convert the arguments - kludge to limit ourselves to /bin/sh
for arg do
if
case $arg in #(
-*) false ;; # don't mess with options #(
/?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath
[ -e "$t" ] ;; #(
*) false ;;
esac
then
arg=$( cygpath --path --ignore --mixed "$arg" )
fi
# Roll the args list around exactly as many times as the number of
# args, so each arg winds up back in the position where it started, but
# possibly modified.
#
# NB: a `for` loop captures its iteration list before it begins, so
# changing the positional parameters here affects neither the number of
# iterations, nor the values presented in `arg`.
shift # remove old arg
set -- "$@" "$arg" # push replacement arg
done
fi
# Collect all arguments for the java command;
# * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
# shell script including quotes and variable substitutions, so put them in
# double quotes to make sure that they get re-expanded; and
# * put everything else in single quotes, so that it's not re-expanded.
set -- \
"-Dorg.gradle.appname=$APP_BASE_NAME" \
-classpath "$CLASSPATH" \
org.gradle.wrapper.GradleWrapperMain \
"$@"
# Use "xargs" to parse quoted args.
#
# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
#
# In Bash we could simply go:
#
# readarray ARGS < <( xargs -n1 <<<"$var" ) &&
# set -- "${ARGS[@]}" "$@"
#
# but POSIX shell has neither arrays nor command substitution, so instead we
# post-process each arg (as a line of input to sed) to backslash-escape any
# character that might be a shell metacharacter, then use eval to reverse
# that process (while maintaining the separation between arguments), and wrap
# the whole thing up as a single "set" statement.
#
# This will of course break if any of these variables contains a newline or
# an unmatched quote.
#
eval "set -- $(
printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
xargs -n1 |
sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
tr '\n' ' '
)" '"$@"'
exec "$JAVACMD" "$@"

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@rem
@rem Copyright 2015 the original author or authors.
@rem
@rem Licensed under the Apache License, Version 2.0 (the "License");
@rem you may not use this file except in compliance with the License.
@rem You may obtain a copy of the License at
@rem
@rem https://www.apache.org/licenses/LICENSE-2.0
@rem
@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@rem
@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@rem Gradle startup script for Windows
@rem
@rem ##########################################################################
@rem Set local scope for the variables with windows NT shell
if "%OS%"=="Windows_NT" setlocal
set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%
@rem Resolve any "." and ".." in APP_HOME to make it shorter.
for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome
set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if "%ERRORLEVEL%" == "0" goto execute
echo.
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
if exist "%JAVA_EXE%" goto execute
echo.
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:execute
@rem Setup the command line
set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
:end
@rem End local scope for the variables with windows NT shell
if "%ERRORLEVEL%"=="0" goto mainEnd
:fail
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
rem the _cmd.exe /c_ return code!
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
exit /b 1
:mainEnd
if "%OS%"=="Windows_NT" endlocal
:omega

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rootProject.name = 'bokmakierie'

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src/main/java/com/sparrowwallet/bokmakierie/Bokmakierie.java Normal file
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package com.sparrowwallet.bokmakierie;
import boofcv.abst.fiducial.QrCodeDetector;
import boofcv.alg.fiducial.qrcode.QrCode;
import boofcv.factory.fiducial.ConfigQrCode;
import boofcv.factory.fiducial.FactoryFiducial;
import boofcv.factory.filter.binary.ConfigThreshold;
import boofcv.factory.filter.binary.ThresholdType;
import boofcv.io.image.ConvertBufferedImage;
import boofcv.struct.image.GrayU8;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.List;
public class Bokmakierie {
private final QrCodeDetector<GrayU8> detector;
public Bokmakierie() {
ConfigQrCode config = new ConfigQrCode();
ConfigThreshold configThreshold = ConfigThreshold.local(ThresholdType.LOCAL_MEAN,15);
configThreshold.scale = 1.00;
config.threshold = configThreshold;
this.detector = FactoryFiducial.qrcode(config, GrayU8.class);
}
public Bokmakierie(ConfigThreshold configThreshold) {
ConfigQrCode config = new ConfigQrCode();
config.threshold = configThreshold;
this.detector = FactoryFiducial.qrcode(config, GrayU8.class);
}
public Bokmakierie(ConfigQrCode config) {
this.detector = FactoryFiducial.qrcode(config, GrayU8.class);
}
public Result scan(BufferedImage bufferedImage) {
GrayU8 gray = ConvertBufferedImage.convertFrom(bufferedImage, (GrayU8)null);
detector.process(gray);
List<QrCode> results = detector.getDetections();
if(!results.isEmpty()) {
QrCode qrCode = results.get(0);
return new Result(qrCode.message, qrCode.rawbits, qrCode.version);
}
return null;
}
public static void main(String[] args) throws IOException {
if(args.length < 1) {
System.err.println("An image file must be specified");
}
BufferedImage image = ImageIO.read(new File(args[0]));
Bokmakierie bokmakierie = new Bokmakierie();
Result result = bokmakierie.scan(image);
if(result != null) {
System.out.println(result.getMessage());
}
}
}

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src/main/java/com/sparrowwallet/bokmakierie/Result.java Normal file
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package com.sparrowwallet.bokmakierie;
public class Result {
private final String message;
private final byte[] rawBytes;
private final int version;
public Result(String message, byte[] rawBytes, int version) {
this.message = message;
this.rawBytes = rawBytes;
this.version = version;
}
public String getMessage() {
return message;
}
public byte[] getRawBytes() {
return rawBytes;
}
public int getVersion() {
return version;
}
}